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Girard J, Zaouter C, Moore A, Carrier FM, Girard M. Effects of an open lung extubation strategy compared with a conventional extubation strategy on postoperative pulmonary complications after general anesthesia: a single-centre pilot randomized controlled trial. Can J Anaesth 2023; 70:1648-1659. [PMID: 37498442 DOI: 10.1007/s12630-023-02533-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 02/27/2023] [Accepted: 03/01/2023] [Indexed: 07/28/2023] Open
Abstract
PURPOSE Postoperative pulmonary complications (PPCs) are a common cause of morbidity. Postoperative atelectasis is thought to be a significant risk factor in their development. Recent imaging studies suggest that patients' extubation may result in similar postoperative atelectasis regardless of the intraoperative mechanical ventilation strategy used. In this pilot trial, we hypothesized that a study investigating the effects of an open lung extubation strategy compared with a conventional one on PPCs would be feasible. METHODS We conducted a pilot, single-centre, double-blinded randomized controlled trial. Adult patients at moderate to high risk of PPCs and scheduled for elective surgery were eligible. Patients were randomized to an open lung extubation strategy (semirecumbent position, fraction of inspired oxygen [FIO2] 50%, pressure support ventilation, unchanged positive end-expiratory pressure) or to a conventional extubation strategy (dorsal decubitus position, FIO2 100%, manual bag ventilation). The primary feasibility outcome was global protocol adherence while the primary exploratory efficacy outcome was PPCs. RESULTS We randomized 35 patients to the conventional extubation group and 34 to the open lung extubation group. We observed a global protocol adherence of 96% (95% confidence interval, 88 to 99), which was not different between groups. Eight PPCs occurred (two in the conventional extubation group vs six in the open lung extubation group). Less postoperative supplemental oxygen and better lung aeration were observed in the open lung extubation group. CONCLUSIONS In this single-centre pilot trial, we observed excellent feasibility. A multicentre pilot trial comparing the effect of an open lung extubation strategy with that of a conventional extubation strategy on the occurrence of PPCs is feasible. STUDY REGISTRATION DATE ClinicalTrials.gov (NCT04993001); registered 6 August 2021.
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Affiliation(s)
- Julie Girard
- Department of Anesthesiology, Centre hospitalier de l'Université de Montréal, Montreal, QC, Canada
- Department of Anesthesiology and Pain Medicine, Université de Montréal, Montreal, QC, Canada
| | - Cédrick Zaouter
- Department of Anesthesiology, Centre hospitalier de l'Université de Montréal, Montreal, QC, Canada
- Department of Anesthesiology and Pain Medicine, Université de Montréal, Montreal, QC, Canada
| | - Alex Moore
- Department of Anesthesiology, Centre hospitalier de l'Université de Montréal, Montreal, QC, Canada
- Department of Anesthesiology and Pain Medicine, Université de Montréal, Montreal, QC, Canada
| | - François M Carrier
- Department of Anesthesiology, Centre hospitalier de l'Université de Montréal, Montreal, QC, Canada
- Department of Anesthesiology and Pain Medicine, Université de Montréal, Montreal, QC, Canada
- Centre de Recherche du Centre hospitalier de l'Université de Montréal, Montreal, QC, Canada
| | - Martin Girard
- Department of Anesthesiology, Centre hospitalier de l'Université de Montréal, Montreal, QC, Canada.
- Department of Anesthesiology and Pain Medicine, Université de Montréal, Montreal, QC, Canada.
- Centre de Recherche du Centre hospitalier de l'Université de Montréal, Montreal, QC, Canada.
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El Tahan MR, Samara E, Marczin N, Landoni G, Pasin L. Impact of Lower Tidal Volumes During One-Lung Ventilation: A 2022 Update of the Meta-analysis of Randomized Controlled Trials. J Cardiothorac Vasc Anesth 2023; 37:1983-1992. [PMID: 37225546 DOI: 10.1053/j.jvca.2023.04.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 04/03/2023] [Accepted: 04/14/2023] [Indexed: 05/26/2023]
Abstract
OBJECTIVES To clarify the influence of lower tidal volume (4-7 mL/kg) compared with higher tidal volume (8-15 mL/kg) during one-lung ventilation (OLV) on gas exchange and postoperative clinical outcome. DESIGN Meta-analysis of randomized trials. SETTING Thoracic surgery. PARTICIPANTS Patients receiving OLV. INTERVENTIONS Lower tidal volume during OLV. MEASUREMENTS AND MAIN RESULTS Primary outcome was PaO2-to-the oxygen fraction (PaO2/FIO2) ratio at the end of the surgery, after the reinstitution of two-lung ventilation. Secondary endpoints included perioperative changes in PaO2/FIO2 ratio and carbon dioxide (PaCO2) tension, airway pressure, the incidence of postoperative pulmonary complications, arrhythmia, and length of hospital stay. Seventeen randomized controlled trials (1,463 patients) were selected. Overall analysis showed that the use of low tidal volume during OLV was associated with a significantly higher PaO2/FIO2 ratio 15 minutes after the start of OLV and at the end of surgery (mean difference 33.7 mmHg [p = 0.02] and mean difference 18.59 mmHg [p < 0.001], respectively). The low tidal volume also was associated with higher PaCO2 values 15 minutes and 60 minutes after the start of OLV and with lower airway pressure, which was maintained during two-lung ventilation after surgery. Moreover, the application of lower tidal volume was associated with fewer postoperative pulmonary complications (odds ratio 0.50; p < 0.001) and arrhythmias (odds ratio 0.58; p = 0.009), with no difference in length of hospital stay. CONCLUSIONS The use of lower tidal volume, a component of protective OLV, increases the PaO2/FIO2 ratio, reduces the incidence of postoperative pulmonary complications, and should be considered strongly in daily practice.
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Affiliation(s)
- Mohamed R El Tahan
- Anesthesiology Department, College of Medicine, Imam Abdulrahman Bin Faisal University, Al Khubar, Dammam, Saudi Arabia
| | - Evangelia Samara
- Department of Anesthesiology and Postoperative Intensive Care, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Nandor Marczin
- The Royal Brompton and Harefield NHS Foundation Trust, London, UK; Section of Anesthesia, Pain Medicine, and Intensive Care, Imperial College London, London, UK; Semmelweis University, Budapest, Hungary
| | - Giovanni Landoni
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy; Vita-Salute San Raffaele University, Milano, Italy
| | - Laura Pasin
- Department of Anesthesia and Intensive Care, Azienda Ospedale-Università di Padova, Padua, Italy.
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Suleiman A, Azizi BA, Munoz-Acuna R, Ahrens E, Tartler TM, Wachtendorf LJ, Linhardt FC, Santer P, Chen G, Wilson JL, Gangadharan SP, Schaefer MS. Intensity of one-lung ventilation and postoperative respiratory failure: A hospital registry study. Anaesth Crit Care Pain Med 2023; 42:101250. [PMID: 37236317 DOI: 10.1016/j.accpm.2023.101250] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 05/10/2023] [Accepted: 05/18/2023] [Indexed: 05/28/2023]
Abstract
BACKGROUND Studies linked a high intensity of mechanical ventilation, measured as high mechanical power (MP) to postoperative respiratory failure (PRF) in the setting of two-lung ventilation. We investigated whether a higher MP during one-lung ventilation (OLV) is associated with PRF. METHODS In this registry-based study, adult patients who underwent general anesthesia with OLV for thoracic surgeries between 2006 and 2020 at a New England tertiary healthcare network were included. The association between MP during OLV and PRF (emergency non-invasive ventilation or reintubation within seven days) was assessed in a cohort weighted through a generalized propensity score conditional on a priori defined preoperative and intraoperative factors. Dominance of components of MP and intensity of OLV versus two-lung ventilation in predicting PRF was investigated. RESULTS Out of 878 included patients, 106 (12.1%) developed PRF. The median (IQR) MP during OLV was 9.8 J/min (7.5-11.8) and 8.3 J/min (6.6-10.2) in patients with and without PRF respectively. A higher MP during OLV was associated with PRF (ORadj 1.22 per 1 J/min increase; 95%CI 1.13-1.31; p < 0.001) and characterized by a U-shaped dose-response curve, with the lowest probability of PRF (7.5%) at 6.4 J/min. Dominance analysis of PRF predictors showed a stronger contribution of driving pressure over respiratory rate and tidal volume, the dynamic over the static component of MP, and MP during OLV over two-lung ventilation (contribution to Pseudo-R2: 0.017, 0.021, and 0.036, respectively). CONCLUSION A higher intensity of OLV, mainly driven by driving pressure, is dose-dependently associated with PRF and might constitute a target for mechanical ventilation.
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Affiliation(s)
- Aiman Suleiman
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Center for Anesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Basit A Azizi
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Center for Anesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Ricardo Munoz-Acuna
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Center for Anesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Elena Ahrens
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Center for Anesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Tim M Tartler
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Center for Anesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Luca J Wachtendorf
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Center for Anesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Felix C Linhardt
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Center for Anesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Peter Santer
- Center for Anesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Guanqing Chen
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Center for Anesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Jennifer L Wilson
- Division of Thoracic Surgery and Interventional Pulmonology, Department of Surgery, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Sidhu P Gangadharan
- Division of Thoracic Surgery and Interventional Pulmonology, Department of Surgery, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Maximilian S Schaefer
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Center for Anesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Department of Anesthesiology, Duesseldorf University Hospital, Duesseldorf, Germany.
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Xiao L, Yu K, Yang JJ, Liu WT, Liu L, Miao HH, Li TZ. Effect of individualized positive end-expiratory pressure based on electrical impedance tomography guidance on pulmonary ventilation distribution in patients who receive abdominal thermal perfusion chemotherapy. Front Med (Lausanne) 2023; 10:1198720. [PMID: 37731718 PMCID: PMC10507689 DOI: 10.3389/fmed.2023.1198720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 08/15/2023] [Indexed: 09/22/2023] Open
Abstract
Background Electrical impedance tomography (EIT) has been shown to be useful in guiding individual positive end-expiratory pressure titration for patients with mechanical ventilation. However, the appropriate positive end-expiratory pressure (PEEP) level and whether the individualized PEEP needs to be adjusted during long-term surgery (>6 h) were unknown. Meanwhile, the effect of individualized PEEP on the distribution of pulmonary ventilation in patients who receive abdominal thermoperfusion chemotherapy is unknown. The primary aim of this study was to observe the effect of EIT-guided PEEP on the distribution of pulmonary ventilation in patients undergoing cytoreductive surgery (CRS) combined with hot intraperitoneal chemotherapy (HIPEC). The secondary aim was to analyze their effect on postoperative pulmonary complications. Methods A total of 48 patients were recruited and randomly divided into two groups, with 24 patients in each group. For the control group (group A), PEEP was set at 5 cm H2O, while in the EIT group (group B), individual PEEP was titrated and adjusted every 2 h with EIT guidance. Ventilation distribution, respiratory/circulation parameters, and PPC incidence were compared between the two groups. Results The average individualized PEEP was 10.3 ± 1.5 cm H2O, 10.2 ± 1.6 cm H2O, 10.1 ± 1.8 cm H2O, and 9.7 ± 2.1 cm H2O at 5 min, 2 h, 4 h, and 6 h after tracheal intubation during CRS + HIPEC. Individualized PEEP was correlated with ventilation distribution in the regions of interest (ROI) 1 and ROI 3 at 4 h mechanical ventilation and ROI 1 at 6 h mechanical ventilation. The ventilation distribution under individualized PEEP was back-shifted for 6 h but moved to the control group's ventral side under PEEP 5 cm H2O. The respiratory and circulatory function indicators were both acceptable either under individualized PEEP or PEEP 5 cm H2O. The incidence of total PPCs was significantly lower under individualized PEEP (66.7%) than PEEP 5 cm H2O (37.5%) for patients with CRS + HIPEC. Conclusion The appropriate individualized PEEP was stable at approximately 10 cm H2O during 6 h for patients with CRS + HIPEC, along with better ventilation distribution and a lower total PPC incidence than the fixed PEEP of 5 cm H2O.Clinical trial registration: identifier ChiCTR1900023897.
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Affiliation(s)
- Li Xiao
- Department of Anesthesiology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Kang Yu
- Department of Anesthesiology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Jiao-Jiao Yang
- Department of Anesthesiology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Wen-Tao Liu
- Department of Anesthesiology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Lei Liu
- Department of Science and Technology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Hui-Hui Miao
- Department of Anesthesiology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Tian-Zuo Li
- Department of Anesthesiology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
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Murray EK, You CX, Verghese GC, Krauss BS, Heldt T. Low-Order Mechanistic Models for Volumetric and Temporal Capnography: Development, Validation, and Application. IEEE Trans Biomed Eng 2023; 70:2710-2721. [PMID: 37030832 DOI: 10.1109/tbme.2023.3262764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
OBJECTIVE Develop low-order mechanistic models accounting quantitatively for, and identifiable from, the capnogram - the CO 2 concentration in exhaled breath, recorded over time (Tcap) or exhaled volume (Vcap). METHODS The airflow model's single "alveolar" compartment has compliance and inertance, and feeds a resistive unperfused airway comprising a laminar-flow region followed by a turbulent-mixing region. The gas-mixing model tracks mixing-region CO 2 concentration, fitted breath-by-breath to the measured capnogram, yielding estimates of model parameters that characterize the capnogram. RESULTS For the 17 examined records (310 breaths) of airflow, airway pressure and Tcap from ventilated adult patients, the models fit closely (mean rmse 1% of end-tidal CO 2 concentration on Vcap; 1.7% on Tcap). The associated parameters (4 for Vcap, 5 for Tcap) for each exhalation, and airflow parameters for the corresponding forced inhalation, are robustly estimated, and consonant with literature values. The models also allow, using Tcap alone, estimation of the entire exhaled airflow waveform to within a scaling. This suggests new Tcap-based tests, analogous to spirometry but with normal breathing, for discriminating chronic obstructive pulmonary disease (COPD) from congestive heart failure (CHF). A version trained on 15 exhalations from each of 24 COPD/24 CHF Tcap records from one hospital, then tested 100 times with 15 random exhalations from each of 27 COPD/31 CHF Tcap records at another, gave mean accuracy 80.6% (stdev 2.1%). Another version, tested on 29 COPD/32 CHF, yielded AUROC 0.84. CONCLUSION Our mechanistic models closely fit Tcap and Vcap measurements, and yield subject-specific parameter estimates. SIGNIFICANCE This can inform cardiorespiratory care.
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Boesing C, Schaefer L, Hammel M, Otto M, Blank S, Pelosi P, Rocco PRM, Luecke T, Krebs J. Individualized Positive End-expiratory Pressure Titration Strategies in Superobese Patients Undergoing Laparoscopic Surgery: Prospective and Nonrandomized Crossover Study. Anesthesiology 2023; 139:249-261. [PMID: 37224406 DOI: 10.1097/aln.0000000000004631] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
BACKGROUND Superobesity and laparoscopic surgery promote negative end-expiratory transpulmonary pressure that causes atelectasis formation and impaired respiratory mechanics. The authors hypothesized that end-expiratory transpulmonary pressure differs between fixed and individualized positive end-expiratory pressure (PEEP) strategies and mediates their effects on respiratory mechanics, end-expiratory lung volume, gas exchange, and hemodynamic parameters in superobese patients. METHODS In this prospective, nonrandomized crossover study including 40 superobese patients (body mass index 57.3 ± 6.4 kg/m2) undergoing laparoscopic bariatric surgery, PEEP was set according to (1) a fixed level of 8 cm H2O (PEEPEmpirical), (2) the highest respiratory system compliance (PEEPCompliance), or (3) an end-expiratory transpulmonary pressure targeting 0 cm H2O (PEEPTranspul) at different surgical positioning. The primary endpoint was end-expiratory transpulmonary pressure at different surgical positioning; secondary endpoints were respiratory mechanics, end-expiratory lung volume, gas exchange, and hemodynamic parameters. RESULTS Individualized PEEPCompliance compared to fixed PEEPEmpirical resulted in higher PEEP (supine, 17.2 ± 2.4 vs. 8.0 ± 0.0 cm H2O; supine with pneumoperitoneum, 21.5 ± 2.5 vs. 8.0 ± 0.0 cm H2O; and beach chair with pneumoperitoneum; 15.8 ± 2.5 vs. 8.0 ± 0.0 cm H2O; P < 0.001 each) and less negative end-expiratory transpulmonary pressure (supine, -2.9 ± 2.0 vs. -10.6 ± 2.6 cm H2O; supine with pneumoperitoneum, -2.9 ± 2.0 vs. -14.1 ± 3.7 cm H2O; and beach chair with pneumoperitoneum, -2.8 ± 2.2 vs. -9.2 ± 3.7 cm H2O; P < 0.001 each). Titrated PEEP, end-expiratory transpulmonary pressure, and lung volume were lower with PEEPCompliance compared to PEEPTranspul (P < 0.001 each). Respiratory system and transpulmonary driving pressure and mechanical power normalized to respiratory system compliance were reduced using PEEPCompliance compared to PEEPTranspul. CONCLUSIONS In superobese patients undergoing laparoscopic surgery, individualized PEEPCompliance may provide a feasible compromise regarding end-expiratory transpulmonary pressures compared to PEEPEmpirical and PEEPTranspul, because PEEPCompliance with slightly negative end-expiratory transpulmonary pressures improved respiratory mechanics, lung volumes, and oxygenation while preserving cardiac output. EDITOR’S PERSPECTIVE
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Affiliation(s)
- Christoph Boesing
- Department of Anesthesiology and Critical Care Medicine, University Medical Center Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany; Theodor-Kutzer-Ufer 1-3, Mannheim, Germany
| | - Laura Schaefer
- Department of Anesthesiology and Critical Care Medicine, University Medical Center Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany; Theodor-Kutzer-Ufer 1-3, Mannheim, Germany
| | - Marvin Hammel
- Department of Anesthesiology and Critical Care Medicine, University Medical Center Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany; Theodor-Kutzer-Ufer 1-3, Mannheim, Germany
| | - Mirko Otto
- Department of Surgery, University Medical Center Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany; Theodor-Kutzer-Ufer 1-3, Mannheim, Germany
| | - Susanne Blank
- Department of Surgery, University Medical Center Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Theodor-Kutzer-Ufer 1-3, Mannheim, Germany
| | - Paolo Pelosi
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy; Anesthesiology and Critical Care - San Martino Policlinico Hospital, IRCCS for Oncology and Neurosciences, Genoa, Italy
| | - Patricia R M Rocco
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Centro de Ciências da Saúde, Ilha do Fundao, Rio de Janeiro, Brazil
| | - Thomas Luecke
- Department of Anesthesiology and Critical Care Medicine, University Medical Center Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany; Theodor-Kutzer-Ufer 1-3, Mannheim, Germany
| | - Joerg Krebs
- Department of Anesthesiology and Critical Care Medicine, University Medical Center Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany; Theodor-Kutzer-Ufer 1-3, Mannheim, Germany
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Braun M, Ruscher L, Fuchs A, Kämpfer M, Huber M, Luedi MM, Riva T, Vogt A, Riedel T. Atelectasis in obese patients undergoing laparoscopic bariatric surgery are not increased upon discharge from Post Anesthesia Care Unit. Front Med (Lausanne) 2023; 10:1233609. [PMID: 37727763 PMCID: PMC10505733 DOI: 10.3389/fmed.2023.1233609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 07/31/2023] [Indexed: 09/21/2023] Open
Abstract
Background Obese patients frequently develop pulmonary atelectasis upon general anesthesia. The risk is increased during laparoscopic surgery. This prospective, observational single-center study evaluated atelectasis dynamics using Electric Impedance Tomography (EIT) in patients undergoing laparoscopic bariatric surgery. Methods We included adult patients with ASA physical status I-IV and a BMI of ≥40. Exclusion criteria were known severe pulmonary hypertension, home oxygen therapy, heart failure, and recent pulmonary infections. The primary outcome was the proportion of poorly ventilated lung regions (low tidal variation areas) and the global inhomogeneity (GI) index assessed by EIT before discharge from the Post Anesthesia Care Unit compared to these same measures prior to initiation of anesthesia. Results The median (IQR) proportion of low tidal variation areas at the different analysis points were T1 10.8% [3.6-15.1%] and T5 10.3% [2.6-18.9%], and the mean difference was -0.7% (95% CI: -5.8% -4.5%), i.e., lower than the predefined non-inferiority margin of 5% (p = 0.022). There were no changes at the four additional time points compared to T1 or postoperative pulmonary complications during the 14 days following the procedure. Conclusion We found that obese patients undergoing laparoscopic bariatric surgery do not leave the Post Anesthesia Care Unit with increased low tidal variation areas compared to the preoperative period.
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Affiliation(s)
- Matthias Braun
- Department of Anaesthesiology, Lindenhof Hospital, Bern, Switzerland
| | - Lea Ruscher
- Department of Anaesthesiology and Pain Medicine, Bern University Hospital, Inselspital, University of Bern, Bern, Switzerland
| | - Alexander Fuchs
- Department of Anaesthesiology and Pain Medicine, Bern University Hospital, Inselspital, University of Bern, Bern, Switzerland
- Unit for Research in Anaesthesia, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Martina Kämpfer
- Department of Anaesthesiology and Pain Medicine, Bern University Hospital, Inselspital, University of Bern, Bern, Switzerland
| | - Markus Huber
- Department of Anaesthesiology and Pain Medicine, Bern University Hospital, Inselspital, University of Bern, Bern, Switzerland
| | - Markus M. Luedi
- Department of Anaesthesiology and Pain Medicine, Bern University Hospital, Inselspital, University of Bern, Bern, Switzerland
| | - Thomas Riva
- Department of Anaesthesiology and Pain Medicine, Bern University Hospital, Inselspital, University of Bern, Bern, Switzerland
| | - Andreas Vogt
- Department of Anaesthesiology and Pain Medicine, Bern University Hospital, Inselspital, University of Bern, Bern, Switzerland
| | - Thomas Riedel
- Division of Paediatric Intensive Care Medicine, Department of Paediatrics, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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Xiong X, He Y, Zhou C, Zheng Q, Chen C, Liang P. Impact of total intravenous anesthesia and total inhalation anesthesia as the anesthesia maintenance approaches on blood glucose level and postoperative complications in patients with type 2 diabetes mellitus: a double-blind, randomized controlled trial. BMC Anesthesiol 2023; 23:267. [PMID: 37559041 PMCID: PMC10410792 DOI: 10.1186/s12871-023-02199-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 07/06/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND Diabetes mellitus is a prevalent metabolic disease in the world. Previous studies have shown that anesthetics can affect perioperative blood glucose levels which related to adverse clinical outcomes. Few studies have explored the choice of general anesthetic protocol on perioperative glucose metabolism in diabetes patients. We aimed to compare total intravenous anesthesia (TIVA) with total inhalation anesthesia (TIHA) on blood glucose level and complications in type 2 diabetic patients undergoing general surgery. METHODS In this double-blind controlled trial, 116 type 2 diabetic patients scheduled for general surgery were randomly assigned to either the TIVA group or TIHA group (n = 56 and n = 60, respectively). The blood glucose level at different time points were measured and analyzed by the repeated-measures analysis of variance. The serum insulin and cortisol levels were measured and analyzed with t-test. The incidence of complications was followed up and analyzed with chi-square test or Fisher's exact test as appropriate. The risk factors for complications were analyzed using the logistic stepwise regression. RESULTS The blood glucose levels were higher in TIHA group than that in TIVA group at the time points of extubation, 1 and 2 h after the operation, 1 and 2 days after the operation, and were significantly higher at 1 day after the operation (10.4 ± 2.8 vs. 8.1 ± 2.1 mmol/L; P < 0.01). The postoperative insulin level was higher in TIVA group than that in TIHA group (8.9 ± 2.9 vs. 7.6 ± 2.4 IU/mL; P = 0.011). The postoperative cortisol level was higher in TIHA group than that in TIVA group (15.3 ± 4.8 vs. 12.2 ± 8.9 ug/dL ; P = 0.031). No significant difference regarding the incidence of complications between the two groups was found based on the current samples. Blood glucose level on postoperative day 1 was a risk factor for postoperative complications (OR: 1.779, 95%CI: 1.009 ~ 3.138). CONCLUSIONS TIVA has less impact on perioperative blood glucose level and a better inhibition of cortisol release in type 2 diabetic patients compared to TIHA. A future large trial may be conducted to find the difference of complications between the two groups. TRIAL REGISTRATION The protocol registered on the Chinese Clinical Trials Registry on 20/01/2020 (ChiCTR2000029247).
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Affiliation(s)
- Xinghui Xiong
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yong He
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Cheng Zhou
- Laboratory of Anesthesia and Critical Care Medicine, West China Hospital, National-Local Joint Engineering Research Centre of Translational Medicine of Anesthesiology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Qin Zheng
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Chan Chen
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
- Laboratory of Anesthesia and Critical Care Medicine, West China Hospital, National-Local Joint Engineering Research Centre of Translational Medicine of Anesthesiology, Sichuan University, Chengdu, 610041, Sichuan, China.
| | - Peng Liang
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
- Day Surgery Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
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Wittenstein J, Scharffenberg M, Yang X, Bluth T, Kiss T, Schultz MJ, Rocco PRM, Pelosi P, Gama de Abreu M, Huhle R. Distribution of transpulmonary pressure during one-lung ventilation in pigs at different body positions. Front Physiol 2023; 14:1204531. [PMID: 37601645 PMCID: PMC10436328 DOI: 10.3389/fphys.2023.1204531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 07/13/2023] [Indexed: 08/22/2023] Open
Abstract
Background. Global and regional transpulmonary pressure (PL) during one-lung ventilation (OLV) is poorly characterized. We hypothesized that global and regional PL and driving PL (ΔPL) increase during protective low tidal volume OLV compared to two-lung ventilation (TLV), and vary with body position. Methods. In sixteen anesthetized juvenile pigs, intra-pleural pressure sensors were placed in ventral, dorsal, and caudal zones of the left hemithorax by video-assisted thoracoscopy. A right thoracotomy was performed and lipopolysaccharide administered intravenously to mimic the inflammatory response due to thoracic surgery. Animals were ventilated in a volume-controlled mode with a tidal volume (VT) of 6 mL kg-1 during TLV and of 5 mL kg-1 during OLV and a positive end-expiratory pressure (PEEP) of 5 cmH2O. Global and local transpulmonary pressures were calculated. Lung instability was defined as end-expiratory PL<2.9 cmH2O according to previous investigations. Variables were acquired during TLV (TLVsupine), left lung ventilation in supine (OLVsupine), semilateral (OLVsemilateral), lateral (OLVlateral) and prone (OLVprone) positions randomized according to Latin-square sequence. Effects of position were tested using repeated measures ANOVA. Results. End-expiratory PL and ΔPL were higher during OLVsupine than TLVsupine. During OLV, regional end-inspiratory PL and ΔPL did not differ significantly among body positions. Yet, end-expiratory PL was lower in semilateral (ventral: 4.8 ± 2.9 cmH2O; caudal: 3.1 ± 2.6 cmH2O) and lateral (ventral: 1.9 ± 3.3 cmH2O; caudal: 2.7 ± 1.7 cmH2O) compared to supine (ventral: 4.8 ± 2.9 cmH2O; caudal: 3.1 ± 2.6 cmH2O) and prone position (ventral: 1.7 ± 2.5 cmH2O; caudal: 3.3 ± 1.6 cmH2O), mainly in ventral (p ≤ 0.001) and caudal (p = 0.007) regions. Lung instability was detected more often in semilateral (26 out of 48 measurements; p = 0.012) and lateral (29 out of 48 measurements, p < 0.001) as compared to supine position (15 out of 48 measurements), and more often in lateral as compared to prone position (19 out of 48 measurements, p = 0.027). Conclusion. Compared to TLV, OLV increased lung stress. Body position did not affect stress of the ventilated lung during OLV, but lung stability was lowest in semilateral and lateral decubitus position.
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Affiliation(s)
- Jakob Wittenstein
- Department of Anesthesiology and Intensive Care Medicine, Pulmonary Engineering Group, University Hospital Carl Gustav Carus Dresden at Technische Universität Dresden, Dresden, Germany
| | - Martin Scharffenberg
- Department of Anesthesiology and Intensive Care Medicine, Pulmonary Engineering Group, University Hospital Carl Gustav Carus Dresden at Technische Universität Dresden, Dresden, Germany
| | - Xiuli Yang
- Department of Anesthesiology and Intensive Care Medicine, Pulmonary Engineering Group, University Hospital Carl Gustav Carus Dresden at Technische Universität Dresden, Dresden, Germany
- Department of Anesthesiology, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Thomas Bluth
- Department of Anesthesiology and Intensive Care Medicine, Pulmonary Engineering Group, University Hospital Carl Gustav Carus Dresden at Technische Universität Dresden, Dresden, Germany
| | - Thomas Kiss
- Department of Anesthesiology and Intensive Care Medicine, Pulmonary Engineering Group, University Hospital Carl Gustav Carus Dresden at Technische Universität Dresden, Dresden, Germany
- Department of Anaesthesiology, Intensive-Pain- and Palliative Care Medicine, Radebeul Hospital, Academic Hospital of the Technische Universität Dresden, Radebeul, Germany
| | - Marcus J. Schultz
- Department of Intensive Care and Laboratory of Experimental Intensive Care and Anaesthesiology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Patricia R. M. Rocco
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Paolo Pelosi
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy
- Anesthesia and Critical Care, San Martino Policlinico Hospital, IRCCS for Oncology and Neurosciences, Genoa, Italy
| | - Marcelo Gama de Abreu
- Department of Anesthesiology and Intensive Care Medicine, Pulmonary Engineering Group, University Hospital Carl Gustav Carus Dresden at Technische Universität Dresden, Dresden, Germany
- Department of Intensive Care and Resuscitation, Anesthesiology Institute, Cleveland Clinic, Cleveland, OH, United States
- Department of Outcomes Research, Anesthesiology Institute, Cleveland Clinic, Cleveland, OH, United States
| | - Robert Huhle
- Department of Anesthesiology and Intensive Care Medicine, Pulmonary Engineering Group, University Hospital Carl Gustav Carus Dresden at Technische Universität Dresden, Dresden, Germany
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Scott MJ, Aggarwal G, Aitken RJ, Anderson ID, Balfour A, Foss NB, Cooper Z, Dhesi JK, French WB, Grant MC, Hammarqvist F, Hare SP, Havens JM, Holena DN, Hübner M, Johnston C, Kim JS, Lees NP, Ljungqvist O, Lobo DN, Mohseni S, Ordoñez CA, Quiney N, Sharoky C, Urman RD, Wick E, Wu CL, Young-Fadok T, Peden CJ. Consensus Guidelines for Perioperative Care for Emergency Laparotomy Enhanced Recovery After Surgery (ERAS ®) Society Recommendations Part 2-Emergency Laparotomy: Intra- and Postoperative Care. World J Surg 2023; 47:1850-1880. [PMID: 37277507 PMCID: PMC10241558 DOI: 10.1007/s00268-023-07020-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/28/2023] [Indexed: 06/07/2023]
Abstract
BACKGROUND This is Part 2 of the first consensus guidelines for optimal care of patients undergoing emergency laparotomy (EL) using an Enhanced Recovery After Surgery (ERAS) approach. This paper addresses intra- and postoperative aspects of care. METHODS Experts in aspects of management of high-risk and emergency general surgical patients were invited to contribute by the International ERAS® Society. PubMed, Cochrane, Embase, and Medline database searches were performed for ERAS elements and relevant specific topics. Studies on each item were selected with particular attention to randomized clinical trials, systematic reviews, meta-analyses, and large cohort studies and reviewed and graded using the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) system. Recommendations were made on the best level of evidence, or extrapolation from studies on elective patients when appropriate. A modified Delphi method was used to validate final recommendations. Some ERAS® components covered in other guideline papers are outlined only briefly, with the bulk of the text focusing on key areas pertaining specifically to EL. RESULTS Twenty-three components of intraoperative and postoperative care were defined. Consensus was reached after three rounds of a modified Delphi Process. CONCLUSIONS These guidelines are based on best available evidence for an ERAS® approach to patients undergoing EL. These guidelines are not exhaustive but pull together evidence on important components of care for this high-risk patient population. As much of the evidence is extrapolated from elective surgery or emergency general surgery (not specifically laparotomy), many of the components need further evaluation in future studies.
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Affiliation(s)
- Michael J. Scott
- Department of Anesthesiology and Critical Care Medicine, Leonard Davis Institute for Health Economics, University of Pennsylvania, 3400 Spruce St, Philadelphia, PA 19104 USA
- University College London, London, UK
| | - Geeta Aggarwal
- Department of Anesthesia and Intensive Care Medicine, Royal Surrey County Hospital, Guildford, Surrey UK
| | - Robert J. Aitken
- Sir Charles Gardiner Hospital, Hospital Avenue, Nedlands, WA 6009 Australia
| | - Iain D. Anderson
- Salford Royal NHS Foundation Trust, Stott La, Salford, M6 8HD UK
- University of Manchester, Manchester, UK
| | - Angie Balfour
- Western General Hospital, NHS Lothian, Edinburgh, EH4 2XU Scotland
| | | | - Zara Cooper
- Harvard Medical School, Kessler Director, Center for Surgery and Public Health, Brigham and Women’s Hospital and Division of Trauma, Burns, Surgical Critical Care, and Emergency Surgery, Brigham and Women’s Hospital, 1620 Tremont Street, Boston, MA 02120 USA
| | - Jugdeep K. Dhesi
- School of Population Health and Environmental Sciences, Faculty of Life Sciences and Medicine, Guy’s and St Thomas’ NHS Foundation Trust, King’s College London, London, UK
- Division of Surgery and Interventional Science, University College London, London, UK
| | - W. Brenton French
- Department of Surgery, Virginia Commonwealth University Health System, 1200 E. Broad Street, Richmond, VA 23298 USA
| | - Michael C. Grant
- Department of Anesthesiology and Critical Care Medicine, Department of Surgery, The Johns Hopkins University School of Medicine, 1800 Orleans Street, Baltimore, MD 21287 USA
| | - Folke Hammarqvist
- Department of Emergency and Trauma Surgery, Karolinska University Hospital, CLINTEC, Karolinska Institutet, Stockholm, Sweden
- Karolinska University Hospital Huddinge, Hälsovägen 3. B85, 141 86 Stockholm, Sweden
| | - Sarah P. Hare
- Department of Anaesthesia, Perioperative Medicine and Critical Care, Medway Maritime Hospital, Windmill Road, Gillingham, Kent, ME7 5NY UK
| | - Joaquim M. Havens
- Division of Trauma, Burns and Surgical Critical Care, Brigham and Women’s Hospital, 75 Francis Street, Boston, MA 02115 USA
| | - Daniel N. Holena
- Division of Trauma and Acute Care Surgery, Medical College of Wisconsin, 8701 Watertown Plank Rd, Milwaukee, WI 53226 USA
| | - Martin Hübner
- Department of Visceral Surgery, Lausanne University Hospital CHUV, University of Lausanne (UNIL), Rue du Bugnon 46, 1011 Lausanne, Switzerland
| | - Carolyn Johnston
- Department of Anesthesia, St George’s Hospital, Tooting, London, UK
| | - Jeniffer S. Kim
- Department of Research and Evaluation, Kaiser Permanente Research, Pasadena, CA 9110 USA
| | - Nicholas P. Lees
- Department of General and Colorectal Surgery, Salford Royal NHS Foundation Trust, Scott La, Salford, M6 8HD UK
| | - Olle Ljungqvist
- Faculty of Medicine and Health, School of Health and Medical Sciences, Department of Surgery, Örebro University, Örebro, Sweden
| | - Dileep N. Lobo
- Gastrointestinal Surgery, Nottingham Digestive Diseases Centre and National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, Nottingham University Hospitals and University of Nottingham, Queen’s Medical Centre, Nottingham, NG7 2UH UK
- MRC Versus Arthritis Centre for Musculoskeletal Ageing Research, School of Life Sciences, University of Nottingham, Queen’s Medical Centre, Nottingham, NG7 2UH UK
| | - Shahin Mohseni
- Division of Trauma and Emergency Surgery, Department of Surgery, Orebro University Hospital and School of Medical Sciences, Orebro University, 701 85 Orebro, Sweden
| | - Carlos A. Ordoñez
- Division of Trauma and Acute Care Surgery, Department of Surgery, Fundación Valle del Lili, Cra 98 No. 18 – 49, 760032 Cali, Colombia
- Sección de Cirugía de Trauma y Emergencias, Universidad del Valle – Hospital Universitario del Valle, Cl 5 No. 36-08, 760032 Cali, Colombia
| | - Nial Quiney
- Department of Anesthesia and Intensive Care Medicine, Royal Surrey County Hospital, Egerton Road, Guildford, Surrey, GU5 7XX UK
| | - Catherine Sharoky
- Division of Traumatology, Surgical Critical Care and Emergency Surgery, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Richard D. Urman
- Department of Anesthesiology, The Ohio State University and Wexner Medical Center, 410 West 10Th Ave, Columbus, OH 43210 USA
| | - Elizabeth Wick
- Department of Surgery, University of California San Francisco, 513 Parnassus Ave HSW1601, San Francisco, CA 94143 USA
| | - Christopher L. Wu
- Department of Anesthesiology, Critical Care and Pain Medicine-Hospital for Special Surgery, Department of Anesthesiology-Weill Cornell Medicine, 535 East 70th Street, New York, NY 10021 USA
| | - Tonia Young-Fadok
- Division of Colon and Rectal Surgery, Department of Surgery, Mayo Clinic College of Medicine, Mayo Clinic Arizona, 5777 e. Mayo Blvd., Phoenix, AZ 85054 USA
| | - Carol J. Peden
- Department of Anesthesiology Keck School of Medicine, University of Southern California, 2020 Zonal Avenue IRD 322, Los Angeles, CA 90033 USA
- Department of Anesthesiology, Perelman School of Medicine, University of Pennsylvania, 3400 Spruce St., Philadelphia, PA 19104 USA
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Oh EJ, Kim J, Kim BG, Han S, Ko JS, Gwak MS, Kim GS, Choi EA, Kang J, Park HY. Intraoperative Factors Modifying the Risk of Postoperative Pulmonary Complications After Living Donor Liver Transplantation. Transplantation 2023; 107:1748-1755. [PMID: 36959123 DOI: 10.1097/tp.0000000000004544] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2023]
Abstract
BACKGROUND The relationship between intraoperative anesthetic management and postoperative pulmonary complications (PPCs) after liver transplantation is not fully understood. We aimed to determine the intraoperative contributors to PPC. METHODS The retrospectively collected cohort included 605 patients who underwent living donor liver transplantation. PPCs comprised respiratory failure, respiratory infection, pulmonary edema, atelectasis (at least moderate degree), pneumothorax, and pleural effusion (at least moderate degree). The presence and type of PPC were evaluated by 2 pulmonary physicians. Logistic regression analysis was performed to determine the association between perioperative variables and PPC risk. RESULTS Of the 605 patients, 318 patients (52.6%) developed 486 PPCs. Multivariable analysis demonstrated that PPC risk decreased with low tidal volume ventilation (odds ratio [OR] 0.62 [0.41-0.94], P = 0.023) and increased with greater driving pressure at the end of surgery (OR 1.08 [1.01-1.14], P = 0.018), prolonged hypotension (OR 1.85 [1.27-2.70], P = 0.001), and blood albumin level ≤3.0 g/dL at the end of surgery (OR 2.43 [1.51-3.92], P < 0.001). Survival probability at 3, 6, and 12 mo after transplantation was 91.2%, 89.6%, and 86.5%, respectively, in patients with PPCs and 98.3%, 96.5%, and 93.4%, respectively, in patients without PPCs (hazard ratio 2.2 [1.3-3.6], P = 0.004). Graft survival probability at 3, 6, and 12 mo after transplantation was 89.3%, 87.1%, and 84.3%, respectively, in patients with PPCs and 97.6%, 95.8%, and 92.7%, respectively, in patients without PPCs (hazard ratio 2.3 [1.4-3.7], P = 0.001). CONCLUSIONS We found that tidal volume, driving pressure, hypotension, and albumin level during living donor liver transplantation were significantly associated with PPC risk. These data may help determine patients at risk of PPC or develop an intraoperative lung-protective strategy for liver transplant recipients.
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Affiliation(s)
- Eun Jung Oh
- Department of Anesthesiology and Pain Medicine, Gwangmyeong Hospital, Chung-Ang University School of Medicine, Gwangmyeong, Korea
| | - Jeayoun Kim
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Bo-Guen Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sangbin Han
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Justin S Ko
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Mi Sook Gwak
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Gaab Soo Kim
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Eun Ah Choi
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jiyeon Kang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea
| | - Hye Yun Park
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Bloc S, Alfonsi P, Belbachir A, Beaussier M, Bouvet L, Campard S, Campion S, Cazenave L, Diemunsch P, Di Maria S, Dufour G, Fabri S, Fletcher D, Garnier M, Godier A, Grillo P, Huet O, Joosten A, Lasocki S, Le Guen M, Le Saché F, Macquer I, Marquis C, de Montblanc J, Maurice-Szamburski A, Nguyen YL, Ruscio L, Zieleskiewicz L, Caillard A, Weiss E. Guidelines on perioperative optimization protocol for the adult patient 2023. Anaesth Crit Care Pain Med 2023; 42:101264. [PMID: 37295649 DOI: 10.1016/j.accpm.2023.101264] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
OBJECTIVE The French Society of Anesthesiology and Intensive Care Medicine [Société Française d'Anesthésie et de Réanimation (SFAR)] aimed at providing guidelines for the implementation of perioperative optimization programs. DESIGN A consensus committee of 29 experts from the SFAR was convened. A formal conflict-of-interest policy was developed at the outset of the process and enforced throughout. The entire guidelines process was conducted independently of any industry funding. The authors were advised to follow the principles of the Grading of Recommendations Assessment, Development and Evaluation (GRADE) system to guide assessment of quality of evidence. METHODS Four fields were defined: 1) Generalities on perioperative optimization programs; 2) Preoperative measures; 3) Intraoperative measures and; 4) Postoperative measures. For each field, the objective of the recommendations was to answer a number of questions formulated according to the PICO model (population, intervention, comparison, and outcomes). Based on these questions, an extensive bibliographic search was carried out using predefined keywords according to PRISMA guidelines and analyzed using the GRADE® methodology. The recommendations were formulated according to the GRADE® methodology and then voted on by all the experts according to the GRADE grid method. As the GRADE® methodology could have been fully applied for the vast majority of questions, the recommendations were formulated using a "formalized expert recommendations" format. RESULTS The experts' work on synthesis and application of the GRADE® method resulted in 30 recommendations. Among the formalized recommendations, 19 were found to have a high level of evidence (GRADE 1±) and ten a low level of evidence (GRADE 2±). For one recommendation, the GRADE methodology could not be fully applied, resulting in an expert opinion. Two questions did not find any response in the literature. After two rounds of rating and several amendments, strong agreement was reached for all the recommendations. CONCLUSIONS Strong agreement among the experts was obtained to provide 30 recommendations for the elaboration and/or implementation of perioperative optimization programs in the highest number of surgical fields.
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Affiliation(s)
- Sébastien Bloc
- Clinical Research Department, Ambroise Pare Hospital Group, Neuilly-sur-Seine, France; Department of Anesthesiology, Clinique Drouot Sport, Paris, France.
| | - Pascal Alfonsi
- Department of Anesthesia, University of Paris Descartes, Groupe Hospitalier Paris Saint-Joseph, 185 rue Raymond Losserand, F-75674 Paris Cedex 14, France
| | - Anissa Belbachir
- Service d'Anesthésie Réanimation, UF Douleur, Assistance Publique Hôpitaux de Paris, APHP.Centre, Site Cochin, Paris, France
| | - Marc Beaussier
- Department of Digestive, Oncologic and Metabolic Surgery, Institut Mutualiste Montsouris, Université de Paris, 42 Boulevard Jourdan, 75014, Paris, France
| | - Lionel Bouvet
- Department of Anaesthesia and Intensive Care, Hospices Civils de Lyon, Hôpital Femme Mère Enfant, Lyon, France
| | | | - Sébastien Campion
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Département d'Anesthésie-Réanimation, F-75013 Paris, France; Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005 Paris, France
| | - Laure Cazenave
- Department of Anaesthesia and Critical Care, Hospices Civils de Lyon, Lyon, France; Groupe Jeunes, French Society of Anaesthesia and Intensive Care Medicine (SFAR), 75016 Paris, France
| | - Pierre Diemunsch
- Unité de Réanimation Chirurgicale, Service d'Anesthésie-réanimation Chirurgicale, Pôle Anesthésie-Réanimations Chirurgicales, Samu-Smur, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, 1, Avenue Molière, 67098 Strasbourg Cedex, France
| | - Sophie Di Maria
- Department of Anaesthesiology and Critical Care, AP-HP, Hôpital Pitié-Salpêtrière, Paris, France
| | - Guillaume Dufour
- Service d'Anesthésie-Réanimation, CHU de Pitié-Salpêtrière, 47-83, Boulevard de l'Hôpital, 75013 Paris, France
| | - Stéphanie Fabri
- Faculty of Economics, Management & Accountancy, University of Malta, Malta
| | - Dominique Fletcher
- Université de Versailles-Saint-Quentin-en-Yvelines, Assistance Publique-Hôpitaux de Paris, Hôpital Ambroise-Paré, Service d'Anesthésie, 9, Avenue Charles-de-Gaulle, 92100 Boulogne-Billancourt, France
| | - Marc Garnier
- Sorbonne Université, GRC 29, DMU DREAM, Service d'Anesthésie-Réanimation et Médecine Périopératoire Rive Droite, Paris, France
| | - Anne Godier
- Department of Anaesthesiology and Critical Care, European Georges Pompidou Hospital, Assistance Publique-Hôpitaux de Paris, France
| | | | - Olivier Huet
- CHU de Brest, Anesthesia and Intensive Care Unit, Brest, France
| | - Alexandre Joosten
- Department of Anesthesiology, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium; Department of Anesthesiology and Intensive Care, Hôpitaux Universitaires Paris-Sud, Université Paris-Sud, Université Paris-Saclay, Paul Brousse Hospital, Assistance Publique Hôpitaux de Paris (APHP), Villejuif, France
| | | | - Morgan Le Guen
- Paris Saclay University, Department of Anaesthesia and Pain Medicine, Foch Hospital, 92150 Suresnes, France
| | - Frédéric Le Saché
- Department of Anesthesiology, Clinique Drouot Sport, Paris, France; DMU DREAM Department of Anesthesiology and Critical Care, Pitié-Salpêtrière Hospital, Paris, France
| | - Isabelle Macquer
- Bordeaux University Hospitals, Bordeaux, Anaesthesia and Intensive Care Medicine Department, Bordeaux, France
| | - Constance Marquis
- Clinique du Sport, Département d'Anesthésie et Réanimation, Médipole Garonne, 45 rue de Gironis - CS 13 624, 31036 Toulouse Cedex 1, France
| | - Jacques de Montblanc
- Departments of Anesthesiology and Intensive Care Paris-Saclay University, Bicêtre Hospital, Assistance Publique Hôpitaux de Paris, Le Kremlin-Bicêtre, France
| | | | - Yên-Lan Nguyen
- Anesthesiology and Critical Care Medicine Department, Cochin Academic Hospital, APHP, Université de Paris, 75014 Paris, France
| | - Laura Ruscio
- Departments of Anesthesiology and Intensive Care Paris-Saclay University, Bicêtre Hospital, Assistance Publique Hôpitaux de Paris, Le Kremlin-Bicêtre, France; INSERM U 1195, Université Paris-Saclay, Saint-Aubin, Île-de-France, France
| | - Laurent Zieleskiewicz
- Service d'Anesthésie Réanimation, Hôpital Nord, AP-HM, Marseille, Aix Marseille Université, C2VN, France
| | - Anaîs Caillard
- Centre Hospitalier Universitaire La Cavale Blanche Université de Bretagne Ouest, Anaesthesiology, Critical Care and Perioperative Medicine Department, Brest, France
| | - Emmanuel Weiss
- Department of Anaesthesiology and Critical Care, Beaujon Hospital, DMU Parabol, AP-HP, Nord, Clichy, France; University of Paris, Paris, France; Inserm UMR_S1149, Centre for Research on Inflammation, Paris, France
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Gardon A, De Queiroz Siqueira M, Cerceuil E, Bouhamri N, Chassard D, Baudin F. Alveolar target ventilation and dead space in children under anaesthesia: The proventiped cohort study. Eur J Anaesthesiol 2023; 40:495-500. [PMID: 37052073 DOI: 10.1097/eja.0000000000001832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
INTRODUCTION Ventilator settings in children under anaesthesia remain difficult because of the changes in the physiology and the high dead space. OBJECTIVE To determine the alveolar minute-volume to sustain normocapnia in children under mechanical ventilation. DESIGN A prospective observational study. SETTINGS This study was performed between May and October 2019 in a tertiary care children's hospital. PATIENTS Children between 2 months and 12 years, weighing between 5 and 40 kg, admitted for general anaesthesia. INTERVENTION Volumetric capnography was used to estimate the alveolar and dead space volume (Vd). MAIN OUTCOME MEASURES Total and alveolar minute ventilation in (ml kg -1 min -1 ) over 100 breaths. RESULTS Sixty patients were included comprising 20 per group: 5 to 10 kg (group 1), 10 to 20 kg (group 2), 20 to 40 kg (group 3). Seven patients were excluded for aberrant capnographic curves. After normalisation to weight, the median [IQR] tidal volume per kilogram was similar between the three groups: 6.5 ml kg -1 [6.0 to 7.5 ml kg -1 ], 6.4 ml kg -1 [5.7 to 7.3 ml kg -1 ], 6.4 ml kg -1 [5.3 to 6.8 ml kg -1 ]; P = 0.3. Total Vd (in ml kg -1 ) was negatively correlated to weight ( r = -0.62, 95% confidence interval -0.41 to -0.76, P < 0.001). The total normalised minute ventilation (ml kg -1 min -1 ) to obtain normocapnia was higher in group 1 than in group 2 and in group 3; 203 ml kg -1 min -1 [175 to 219 ml kg -1 min -1 ], 150 ml kg -1 min -1 [139 to 181 ml kg -1 min -1 ] and 128 ml kg -1 min -1 [107 to 157 ml kg -1 min -1 ]; P < 0.001 (mean ± SD), but (mean ± SD) alveolar minute ventilation was similar between the three groups; 68 ± 21 ml kg -1 min -1 . CONCLUSION Total dead space volume (including apparatus dead space) represents a major component of tidal volume in children less than 30 kg, when using large heat and moisture exchanger filters. The total minute ventilation necessary to achieve normocapnia decreased with increasing weight, while the alveolar minute ventilation remained constant. TRIAL REGISTRATION ClinicalTrials.gov, identifier: NCT03901599.
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Affiliation(s)
- Aurelien Gardon
- From the Hospices Civils de Lyon, Departement d'anesthesie, Hôpital FemmeMère Enfant, Bron (AG, MDQS, EC, NB, FB, DC), Agressions Pulmonaires et Circulatoires dans le Sepsis (APCSe), VetAgro Sup, Universités de Lyon, Marcy l'Etoile, France (FB)
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Zorrilla-Vaca A, Grant MC, Rehman M, Sarin P, Varelmann D, Urman RD. Postoperative Hypoxemia After Dual-Controlled vs Volume-Controlled Ventilation in Lung Surgery. Ann Thorac Surg 2023; 116:173-179. [PMID: 36608756 DOI: 10.1016/j.athoracsur.2022.12.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/29/2022] [Accepted: 12/06/2022] [Indexed: 01/09/2023]
Abstract
BACKGROUND One-lung ventilation for thoracic surgery represents a challenge due to the risk for hypoxemia and barotrauma. Dual-controlled ventilation (ie, pressure-regulated volume control [PRVC]) may confer improved lung mechanics compared with conventional ventilation (volume-controlled ventilation [VCV]). Our objective was to determine the association between ventilatory mode and pulmonary outcomes after lung resection surgery. METHODS A historical cohort (2016-2021) of patients undergoing lung resection surgery was used to identify cases performed with PRVC ventilation (intervention) vs VCV (conventional). Both groups were matched in a 1:1 fashion using propensity scoring based on preoperative oxygen saturation, chronic obstructive pulmonary disease, intraoperative ventilator settings, and surgical approach. Our primary outcome was postoperative hypoxemia (oxygen saturation <92% requiring supplemental oxygen longer than 2 hours). Secondary outcomes included respiratory failure, pneumonia, atelectasis, acute respiratory distress syndrome, pleural effusion, and reintubation. Associations were reported using adjusted odds ratios (aOR). RESULTS Of 2107 eligible patients (PRVC = 1587 vs VCV = 520), a total of 774 matched pairs were analyzed (PRVC = 387 vs VCV = 387). The overall incidence of postoperative hypoxemia was 35.5% (95% CI 32.2%-39.0%). Hypoxemia was less likely among patients managed with low tidal volumes (≤6 mL/kg per ideal body weight, aOR 0.73, 95% CI 0.57-0.92, P = .008). No significant association was observed between ventilator mode and postoperative hypoxemia (33.3% in PRVC vs 37.7% in VCV; aOR 0.93, 95% CI 0.71-1.23, P = .627) or secondary pulmonary complications (3.9% in PRVC vs 3.4% in VCV; aOR 0.96, 95% CI 0.47-1.97, P = .909). CONCLUSIONS Dual-controlled ventilation was not associated with improved pulmonary outcomes compared with conventional ventilation in lung resection surgery.
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Affiliation(s)
- Andres Zorrilla-Vaca
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.
| | - Michael C Grant
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins Hospital, Baltimore, Maryland
| | - Muhammad Rehman
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Pankaj Sarin
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Dirk Varelmann
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Richard D Urman
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
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Luo LF, Lin YM, Liu Y, Gao XH, Li CY, Zhang XQ, Wu JH, Chen ZY. Effect of individualized PEEP titration by ultrasonography on perioperative pulmonary protection and postoperative cognitive function in patients with chronic obstructive pulmonary disease. BMC Pulm Med 2023; 23:232. [PMID: 37380978 DOI: 10.1186/s12890-023-02471-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 05/06/2023] [Indexed: 06/30/2023] Open
Abstract
OBJECTIVE To evaluate the effect of the individualized positive end-expiratory pressure (PEEP) lung protection ventilation strategy by combining driving pressure (ΔP) and pulmonary ultrasound (LUS)-based titration on lung function and postoperative cognitive function in patients with chronic obstructive pulmonary disease (COPD) during laparoscopic surgery. METHODS A total of 108 patients with COPD undergoing laparoscopic gastrointestinal surgery under general anesthesia were included in this study. They were randomly divided into three groups (n = 36): traditional volume ventilation group (Group C), fixed PEEP 5 cmH2O group (Group P), and ΔP combined with LUS-based PEEP titration in the resuscitation room group (Group T). All three groups were given volume ventilation mode, I:E = 1:2; In group C, VT was 10 mL/kg and PEEP was 0 cmH2O; In groups P and T, VT was 6 mL/kg and PEEP was 5 cmH2O; After mechanical ventilation for 15 min in Group T, ΔP in combination with LUS was used to titrate PEEP. The oxygenation index (PaO2/FiO2), airway platform pressure (Pplat), dynamic lung compliance (Cdyn), Montreal Cognitive Assessment (MoCA), and venous interleukin-6(IL-6) were recorded at the corresponding time points, and the final PEEP value in Group T was recorded. RESULTS The final PEEP value of Group T was (6.4 ± 1.2) cmH2O; Compared with groups C and P: PaO2/FiO2 and Cdyn in Group T were significantly increased (P < 0.05) and value of IL-6 was significantly decreased (P < 0.05) at the corresponding time points. Compared with group C, the MoCA score on day 7 after surgery in Group T was significantly higher (P < 0.05). CONCLUSION Compared with the traditional ventilation strategy, the individualized ΔP combined with LUS-based PEEP titration in patients with COPD during the perioperative period of laparoscopic surgery can play a better role in lung protection and can improve postoperative cognitive function.
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Affiliation(s)
- Lai-Feng Luo
- Department of Anesthesiology, the Second Affiliated Hospital of Fujian Medical University, No.950 of Donghai street, Fengze District, Quanzhou, 362000, China
- Department of Anesthesiology, The Second Hospital of Sanming, Sanming City, 366000, Fujian Province, China
| | - Yu-Mei Lin
- Department of Anesthesiology, the Second Affiliated Hospital of Fujian Medical University, No.950 of Donghai street, Fengze District, Quanzhou, 362000, China
| | - Ying Liu
- Department of Anesthesiology, the Second Affiliated Hospital of Fujian Medical University, No.950 of Donghai street, Fengze District, Quanzhou, 362000, China
| | - Xiao-Hua Gao
- Department of Anesthesiology, the Second Affiliated Hospital of Fujian Medical University, No.950 of Donghai street, Fengze District, Quanzhou, 362000, China
| | - Chui-Yu Li
- Department of Anesthesiology, the Second Affiliated Hospital of Fujian Medical University, No.950 of Donghai street, Fengze District, Quanzhou, 362000, China
| | - Xiao-Qi Zhang
- Department of Anesthesiology, the Second Affiliated Hospital of Fujian Medical University, No.950 of Donghai street, Fengze District, Quanzhou, 362000, China
| | - Jian-Hua Wu
- Department of Anesthesiology, the Second Affiliated Hospital of Fujian Medical University, No.950 of Donghai street, Fengze District, Quanzhou, 362000, China.
| | - Zhi-Yuan Chen
- Department of Anesthesiology, the Second Affiliated Hospital of Fujian Medical University, No.950 of Donghai street, Fengze District, Quanzhou, 362000, China.
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Matías Aguilera A, Alday Muñoz E, Muñoz de Nova JL, Planas Roca A. Ventilatory inequality in the operating room. Gender differences in intraoperative mechanical ventilation guidelines. REVISTA ESPANOLA DE ANESTESIOLOGIA Y REANIMACION 2023; 70:368-369. [PMID: 37271342 DOI: 10.1016/j.redare.2022.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 08/31/2022] [Indexed: 06/06/2023]
Affiliation(s)
| | - E Alday Muñoz
- Anestesiología y Reanimación, Hospital Universitario La Princesa, Madrid, Spain.
| | - J L Muñoz de Nova
- Cirugía General y del Aparato Digestivo, Hospital Universitario La Princesa, Madrid, Spain
| | - A Planas Roca
- Anestesiología y Reanimación, Hospital Universitario La Princesa, Madrid, Spain
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L D, Kumar R, Patel N, Ayub A, Rewari V, Subramaniam R, Roy KK. Effect of Lung Compliance-Based Optimum Pressure Versus Fixed Positive End-Expiratory Pressure on Lung Atelectasis Assessed by Modified Lung Ultrasound Score in Laparoscopic Gynecological Surgery: A Prospective Randomized Controlled Trial. Cureus 2023; 15:e40278. [PMID: 37448389 PMCID: PMC10336472 DOI: 10.7759/cureus.40278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/30/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND Lung protective ventilation during the intraoperative period is now well established. However, the additional role of positive end-expiratory pressure (PEEP) during the intraoperative period remains uncertain in major laparoscopic gynecological surgery. The authors hypothesized that compliance-based optimum PEEP titration reduces postoperative lung atelectasis and improves outcomes. METHODS Patients undergoing major laparoscopic pelvic gynecological surgeries with healthy lungs were randomized to the fixed PEEP group (PEEP 5 cm H2O and recruitment maneuver {RM}) and optimum PEEP group (compliance-based PEEP and RM). Lung ultrasound and arterial blood gas analysis were performed at four time points. Modified lung ultrasound scoring was done, and the same was used as means of assessing lung aeration and the amount of lung atelectasis. Postoperative supplemental oxygen requirement and duration were also assessed and compared. RESULTS Lung ultrasound score (LUS) 30 minutes after extubation in fixed (Group F) and optimum (Group O) PEEP groups were median (interquartile range {IQR}) 3 (2-3) versus 1 (1-2), p=0.0001. Ventilatory parameters between Group F and Group O after lung recruitment were tidal volume (mean 357 mL {SD: 35} versus 362 mL {SD: 22}, p=0.46), PEEP (median, 5 cm H2O {IQR: 5-5} versus median 16 cm H2O {IQR: 14-18}), peak airway pressure (median 26 cm H2O {IQR: 24-28} versus median 30 cm H2O {IQR: 28-32} p<0.0001), plateau pressure (median 22 cm H2O {IQR: 20-24} versus median 26 cm H2O {IQR: 24-28} p<0.0001), static compliance (32.07±8.36 mL cm H2O-1 versus 39.58±8.99 mL cm H2O-1, p=0.0002). The number of patients requiring postoperative oxygen therapy to maintain SpO2 >94% after extubation in postanesthesia care unit (PACU) was statistically significantly greater in group F (39/41 {95%} versus 30/41 {73%}, p=0.007). Median (IQR) duration of oxygenation therapy in the first 24 hours of the postoperative period between Group F and Group O differed with statistical significance, with the median (IQR) values being 25 (20-30) minutes versus 10 (0-15) minutes (p<0.0001). CONCLUSIONS The modified lung ultrasound score significantly differed intraoperatively between the two groups, with lower scores in the optimum PEEP group. This has reflected improved postoperative outcomes in optimum PEEP group patients, with fewer patients requiring postoperative oxygen supplementation and reduced supplemental oxygen requirement duration.
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Affiliation(s)
- Deeparaj L
- Anesthesiology, Pain Medicine and Critical Care, All India Institute of Medical Sciences, New Delhi, IND
| | - Rakesh Kumar
- Anesthesiology, Pain Medicine and Critical Care, All India Institute of Medical Sciences, New Delhi, IND
| | - Nishant Patel
- Anesthesiology, Pain Medicine and Critical Care, All India Institute of Medical Sciences, New Delhi, IND
| | - Arshad Ayub
- Anesthesiology, Pain Medicine and Critical Care, All India Institute of Medical Sciences, New Delhi, IND
| | - Vimi Rewari
- Anesthesiology, Pain Medicine and Critical Care, All India Institute of Medical Sciences, New Delhi, IND
| | - Rajeshwari Subramaniam
- Anesthesiology, Pain Medicine and Critical Care, All India Institute of Medical Sciences, New Delhi, IND
| | - Kallol Kumar Roy
- Obstetrics and Gynecology, All India Institute of Medical Sciences, New Delhi, IND
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Pippalapalli J, Lumb A. The respiratory system and acid-base disorders. BJA Educ 2023; 23:221-228. [PMID: 37223696 PMCID: PMC10201398 DOI: 10.1016/j.bjae.2023.03.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 03/01/2023] [Indexed: 05/25/2023] Open
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Yang G, Zhang P, Li L, Wang J, Jiao P, Wang J, Chu Q. Driving Pressure-Guided Ventilation in Obese Patients Undergoing Laparoscopic Sleeve Gastrectomy: A Randomized Controlled Trial. Diabetes Metab Syndr Obes 2023; 16:1515-1523. [PMID: 37252007 PMCID: PMC10225129 DOI: 10.2147/dmso.s405804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 05/19/2023] [Indexed: 05/31/2023] Open
Abstract
Purpose This study aims to compare the conventional lung protective ventilation strategy (LPVS) with driving pressure-guided ventilation in obese patients undergoing laparoscopic sleeve gastrectomy (LSG). Methods Forty-five patients undergoing elective LSG under general anesthesia were randomly assigned to the conventional LPVS group (group L) or the driving pressure-guided ventilation group (group D) using random numbers generated by Excel. The primary outcome was the driving pressure of both groups 90 min after pneumoperitoneum. Results After 30 min of pneumoperitoneum, 90 min of pneumoperitoneum, 10 min of closing the pneumoperitoneum, and restoring the supine position, the driving pressure of group L and group D were 20.0 ± 2.9 cm H2O vs 16.6 ± 3.0 cm H2O (P < 0.001), 20.7 ± 3.2 cm H2O vs 17.3 ± 2.8 cm H2O (P < 0.001), and 16.3 ± 3.1 cm H2O vs 13.3 ± 2.5 cm H2O (P = 0.001), respectively; the respiratory compliance of groups L and D were 23.4 ± 3.7 mL/cm H2O vs 27.6 ± 5.1 mL/cm H2O (P = 0.003), 22.7 ± 3.8 mL/cm H2O vs 26.4 ± 3.5 mL/cm H2O (P = 0.005), and 29.6 ± 6.8 mL/cm H2O vs 34.7 ± 5.3 mL/cm H2O (P = 0.007), respectively. The intraoperative PEEP in groups L and group D was 5 (5-5) cm H2O vs 10 (9-11) cm H2O (P < 0.001). Conclusion An individualized peep-based driving pressure-guided ventilation strategy can reduce intraoperative driving pressure and increase respiratory compliance in obese patients undergoing LSG.
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Affiliation(s)
- Guanyu Yang
- Department of Anesthesiology and Perioperative Medicine, Zhengzhou Central Hospital, Zhengzhou, Henan, People’s Republic of China
| | - Pin Zhang
- Department of Anesthesiology and Perioperative Medicine, Zhengzhou Central Hospital, Zhengzhou, Henan, People’s Republic of China
| | - Liumei Li
- Department of Anesthesiology and Perioperative Medicine, Zhengzhou Central Hospital, Zhengzhou, Henan, People’s Republic of China
| | - Jingjing Wang
- Department of Anesthesiology and Perioperative Medicine, Zhengzhou Central Hospital, Zhengzhou, Henan, People’s Republic of China
| | - Pengfei Jiao
- Department of Anesthesiology and Perioperative Medicine, Zhengzhou Central Hospital, Zhengzhou, Henan, People’s Republic of China
| | - Jie Wang
- Department of Anesthesiology and Perioperative Medicine, Zhengzhou Central Hospital, Zhengzhou, Henan, People’s Republic of China
| | - Qinjun Chu
- Department of Anesthesiology and Perioperative Medicine, Zhengzhou Central Hospital, Zhengzhou, Henan, People’s Republic of China
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Liu F, Zhang W, Zhao Z, Xu X, Jian M, Han R. Effect of driving pressure on early postoperative lung gas distribution in supratentorial craniotomy: a randomized controlled trial. BMC Anesthesiol 2023; 23:176. [PMID: 37217882 DOI: 10.1186/s12871-023-02144-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 05/17/2023] [Indexed: 05/24/2023] Open
Abstract
BACKGROUND Neurosurgical patients represent a high-risk population for postoperative pulmonary complications (PPCs). A lower intraoperative driving pressure (DP) is related to a reduction in postoperative pulmonary complications. We hypothesized that driving pressure-guided ventilation during supratentorial craniotomy might lead to a more homogeneous gas distribution in the lung postoperatively. METHODS This was a randomized trial conducted between June 2020 and July 2021 at Beijing Tiantan Hospital. Fifty-three patients undergoing supratentorial craniotomy were randomly divided into the titration group or control group at a ratio of 1 to 1. The control group received 5 cmH2O PEEP, and the titration group received individualized PEEP targeting the lowest DP. The primary outcome was the global inhomogeneity index (GI) immediately after extubation obtained by electrical impedance tomography (EIT). The secondary outcomes were lung ultrasonography scores (LUSs), respiratory system compliance, the ratio of the partial pressure of arterial oxygen to the fraction of inspired oxygen (PaO2/FiO2) and PPCs within 3 days postoperatively. RESULTS Fifty-one patients were included in the analysis. The median (IQR [range]) DP in the titration group versus the control group was 10 (9-12 [7-13]) cmH2O vs. 11 (10-12 [7-13]) cmH2O, respectively (P = 0.040). The GI tract did not differ between groups immediately after extubation (P = 0.080). The LUSS was significantly lower in the titration group than in the control group immediately after tracheal extubation (1 [0-3] vs. 3 [1-6], P = 0.045). The compliance in the titration group was higher than that in the control group at 1 h after intubation (48 [42-54] vs. 41 [37-46] ml·cmH2O-1, P = 0.011) and at the end of surgery (46 [42-51] vs. 41 [37-44] ml·cmH2O-1, P = 0.029). The PaO2/FiO2 ratio was not significantly different between groups in terms of the ventilation protocol (P = 0.117). At the 3-day follow-up, no postoperative pulmonary complications occurred in either group. CONCLUSIONS Driving pressure-guided ventilation during supratentorial craniotomy did not contribute to postoperative homogeneous aeration, but it may lead to improved respiratory compliance and lower lung ultrasonography scores. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov NCT04421976.
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Affiliation(s)
- Feifei Liu
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, China
- Department of Anesthesiology, Beijing Fangshan Liangxiang Hospital, Beijing, China
| | - Wei Zhang
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, China
| | - Zhanqi Zhao
- Institute of Technical Medicine, Furtwangen University, Villingen-Schwenningen, Germany
| | - Xin Xu
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, China
| | - Minyu Jian
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, China
| | - Ruquan Han
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, China.
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Grieco DL, Russo A, Anzellotti GM, Romanò B, Bongiovanni F, Dell'Anna AM, Mauti L, Cascarano L, Gallotta V, Rosà T, Varone F, Menga LS, Polidori L, D'Indinosante M, Cappuccio S, Galletta C, Tortorella L, Costantini B, Gueli Alletti S, Sollazzi L, Scambia G, Antonelli M. Lung-protective ventilation during Trendelenburg pneumoperitoneum surgery: A randomized clinical trial. J Clin Anesth 2023; 85:111037. [PMID: 36495775 DOI: 10.1016/j.jclinane.2022.111037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/31/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022]
Abstract
Study objective To assess the effects of a protective ventilation strategy during Trendelenburg pneumoperitoneum surgery on postoperative oxygenation. DESIGNS Parallel-group, randomized trial. SETTING Operating room of a university hospital, Italy. PATIENTS Morbidly obese patients undergoing Trendelenburg pneumoperitoneum gynaecological surgery. INTERVENTIONS Participants were randomized to standard (SV: tidal volume = 10 ml/kg of predicted body weight, PEEP = 5 cmH2O) or protective (PV: tidal volume = 6 ml/kg of predicted body weight, PEEP = 10 cmH2O, recruitment maneuvers) ventilation during anesthesia. MEASUREMENTS Primary outcome was PaO2/FiO2 one hour after extubation. Secondary outcomes included day-1 PaO2/FiO2, day-2 respiratory function and intraoperative respiratory/lung mechanics, assessed through esophageal manometry, end-expiratory lung volume (EELV) measurement and pressure-volume curves. MAIN RESULTS Sixty patients were analyzed (31 in SV group, 29 in PV group). Median [IqR] tidal volume was 350 ml [300-360] in PV group and 525 [500-575] in SV group. Median PaO2/FiO2 one hour after extubation was 280 mmHg [246-364] in PV group vs. 298 [250-343] in SV group (p = 0.64). Day-1 PaO2/FiO2, day-2 forced vital capacity, FEV-1 and Tiffenau Index were not different between groups (all p > 0.10). Intraoperatively, 59% of patients showed complete airway closure during pneumoperitoneum, without difference between groups: median airway opening pressure was 17 cmH2O. In PV group, airway and transpulmonary driving pressure were lower (12 ± 5 cmH2O vs. 17 ± 7, p < 0.001; 9 ± 4 vs. 13 ± 7, p < 0.001), PaCO2 and respiratory rate were higher (48 ± 8 mmHg vs. 42 ± 12, p < 0.001; 23 ± 5 breaths/min vs. 16 ± 4, p < 0.001). Intraoperative EELV was similar between PV and SV group (1193 ± 258 ml vs. 1207 ± 368, p = 0.80); ratio of tidal volume to EELV was lower in PV group (0.45 ± 0.12 vs. 0.32 ± 0.09, p < 0.001). CONCLUSIONS In obese patients undergoing Trendelenburg pneumoperitoneum surgery, PV did not improve postoperative oxygenation nor day-2 respiratory function. PV was associated with intraoperative respiratory mechanics indicating less injurious ventilation. The high prevalence of complete airway closure may have affected study results. TRIAL REGISTRATION Prospectively registered on http://clinicaltrials.govNCT03157479 on May 17th, 2017.
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Affiliation(s)
- Domenico Luca Grieco
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of The Sacred Heart, Rome, Italy; Anesthesia, Emergency and Intensive Care Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.
| | - Andrea Russo
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of The Sacred Heart, Rome, Italy; Anesthesia, Emergency and Intensive Care Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Gian Marco Anzellotti
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of The Sacred Heart, Rome, Italy; Anesthesia, Emergency and Intensive Care Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Bruno Romanò
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of The Sacred Heart, Rome, Italy; Anesthesia, Emergency and Intensive Care Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Filippo Bongiovanni
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of The Sacred Heart, Rome, Italy; Anesthesia, Emergency and Intensive Care Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Antonio M Dell'Anna
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of The Sacred Heart, Rome, Italy; Anesthesia, Emergency and Intensive Care Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Luigi Mauti
- Department of Internal medicine, Catholic University of The Sacred Heart, Rome, Italy; Respiratory Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Laura Cascarano
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of The Sacred Heart, Rome, Italy; Anesthesia, Emergency and Intensive Care Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Valerio Gallotta
- Department of Obstetrics and Gynecology, Catholic University of The Sacred Heart, Rome, Italy; Gynecologic Oncology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Tommaso Rosà
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of The Sacred Heart, Rome, Italy; Anesthesia, Emergency and Intensive Care Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Francesco Varone
- Department of Internal medicine, Catholic University of The Sacred Heart, Rome, Italy; Respiratory Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Luca S Menga
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of The Sacred Heart, Rome, Italy; Anesthesia, Emergency and Intensive Care Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Lorenzo Polidori
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of The Sacred Heart, Rome, Italy; Anesthesia, Emergency and Intensive Care Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Marco D'Indinosante
- Department of Obstetrics and Gynecology, Catholic University of The Sacred Heart, Rome, Italy; Gynecologic Oncology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Serena Cappuccio
- Department of Obstetrics and Gynecology, Catholic University of The Sacred Heart, Rome, Italy; Gynecologic Oncology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Claudia Galletta
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of The Sacred Heart, Rome, Italy; Anesthesia, Emergency and Intensive Care Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Lucia Tortorella
- Department of Obstetrics and Gynecology, Catholic University of The Sacred Heart, Rome, Italy; Gynecologic Oncology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Barbara Costantini
- Department of Obstetrics and Gynecology, Catholic University of The Sacred Heart, Rome, Italy; Gynecologic Oncology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Salvatore Gueli Alletti
- Department of Obstetrics and Gynecology, Catholic University of The Sacred Heart, Rome, Italy; Gynecologic Oncology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Liliana Sollazzi
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of The Sacred Heart, Rome, Italy; Anesthesia, Emergency and Intensive Care Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Giovanni Scambia
- Department of Obstetrics and Gynecology, Catholic University of The Sacred Heart, Rome, Italy; Gynecologic Oncology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Massimo Antonelli
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of The Sacred Heart, Rome, Italy; Anesthesia, Emergency and Intensive Care Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
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Stuby J, Kaserer A, Ott S, Ruetzler K, Rössler J. [Perioperative hyperoxia-More harmful than beneficial?]. DIE ANAESTHESIOLOGIE 2023; 72:342-347. [PMID: 37084143 DOI: 10.1007/s00101-023-01274-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/01/2023] [Indexed: 04/22/2023]
Abstract
BACKGROUND The ideal perioperative oxygen concentration is controversial and study results are inconsistent. OBJECTIVE Current knowledge on the beneficial and adverse effects of perioperative hyperoxia. MATERIAL AND METHODS Narrative review RESULTS: Perioperative hyperoxia is unlikely to increase the incidence of atelectasis, pulmonary or cardiovascular complications or mortality. Few and small potential beneficial effects, such as reduction of surgical wound infections or postoperative nausea and vomiting have been demonstrated. According to the current state of evidence, it is recommended to avoid perioperative hyperoxia and to aim for normoxia instead.
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Affiliation(s)
- Johann Stuby
- Institut für Anästhesiologie, Universitätsspital Zürich, 8091, Zürich, Schweiz.
| | - Alexander Kaserer
- Institut für Anästhesiologie, Universitätsspital Zürich, 8091, Zürich, Schweiz
| | - Sascha Ott
- Klinik für Kardioanästhesiologie und Intensivmedizin, Deutsches Herzzentrum Berlin, 13353, Berlin, Deutschland
- Klinik für Kardioanästhesiologie und Intensivmedizin, Charité Universitätsmedizin Berlin, 13353, Berlin, Deutschland
- DZHK (Deutsches Zentrum für Herz-Kreislauf-Forschung), Standort Berlin, Berlin, Deutschland
| | - Kurt Ruetzler
- Department of Outcomes Research, Anesthesiology Institute, Cleveland Clinic, Cleveland, USA
- Department of General Anesthesia, Anesthesiology Institute, Cleveland Clinic, Cleveland, USA
| | - Julian Rössler
- Department of Outcomes Research, Anesthesiology Institute, Cleveland Clinic, Cleveland, USA
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73
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Tan HS, Habib AS. Peri-operative anaesthetic management of women with obesity. Best Pract Res Clin Obstet Gynaecol 2023; 89:102335. [PMID: 37290264 DOI: 10.1016/j.bpobgyn.2023.102335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 02/27/2023] [Accepted: 03/31/2023] [Indexed: 06/10/2023]
Abstract
Obesity in women is prevalent and growing at an alarming pace worldwide, resulting in significant healthcare and socioeconomic consequences. Obesity is a multisystemic disease that is associated with numerous comorbidities, particularly sleep-disordered breathing, hypertension, coronary artery disease, pulmonary hypertension, thromboembolism, and diabetes mellitus. Additionally, obesity poses several peri-operative challenges including difficulty with airway management and mechanical ventilation, challenges with intravenous access or regional blocks, the need for modified anaesthetic drug dosing, the requirement for correctly sized and rated equipment, and appropriate post-operative monitoring. Therefore, early multidisciplinary planning is crucial to identify and address important peri-operative and clinical issues. Parturients with obesity are especially at high risk due to the additional physiological changes and obstetric comorbidities associated with obesity. Antenatal anaesthetic consultation along with close communication and collaboration within the multidisciplinary team are important to improve maternal and neonatal safety.
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Affiliation(s)
- Hon Sen Tan
- Department of Women's Anaesthesia, KK Women's and Children's Hospital, 100 Bukit Timah Road, 229899, Singapore
| | - Ashraf S Habib
- Department of Anesthesiology, Duke University Medical Center, Box 3094, Durham, NC, 27710, USA. https://twitter.com/ashrafhabib5
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Tartler TM, Wachtendorf LJ, Suleiman A, Blank M, Ahrens E, Linhardt FC, Althoff FC, Chen G, Santer P, Nagrebetsky A, Eikermann M, Schaefer MS. The association of intraoperative low driving pressure ventilation and nonhome discharge: a historical cohort study. Can J Anaesth 2023; 70:359-373. [PMID: 36697936 DOI: 10.1007/s12630-022-02378-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 08/07/2022] [Accepted: 09/21/2022] [Indexed: 01/26/2023] Open
Abstract
PURPOSE To evaluate whether intraoperative ventilation using lower driving pressure decreases the risk of nonhome discharge. METHODS We conducted a historical cohort study of patients aged ≥ 60 yr who were living at home before undergoing elective, noncardiothoracic surgery at two tertiary healthcare networks in Massachusetts between 2007 and 2018. We assessed the association of the median driving pressure during intraoperative mechanical ventilation with nonhome discharge using multivariable logistic regression analysis, adjusted for patient and procedural factors. Contingent on the primary association, we assessed effect modification by patients' baseline risk and mediation by postoperative respiratory failure. RESULTS Of 87,407 included patients, 12,584 (14.4%) experienced nonhome discharge. In adjusted analyses, a lower driving pressure was associated with a lower risk of nonhome discharge (adjusted odds ratio [aOR], 0.88; 95% confidence interval [CI], 0.83 to 0.93, per 10 cm H2O decrease; P < 0.001). This association was magnified in patients with a high baseline risk (aOR, 0.77; 95% CI, 0.73 to 0.81, per 10 cm H2O decrease, P-for-interaction < 0.001). The findings were confirmed in 19,518 patients matched for their baseline respiratory system compliance (aOR, 0.90; 95% CI, 0.81 to 1.00; P = 0.04 for low [< 15 cm H2O] vs high [≥ 15 cm H2O] driving pressures). A lower risk of respiratory failure mediated the association of a low driving pressure with nonhome discharge (20.8%; 95% CI, 15.0 to 56.8; P < 0.001). CONCLUSIONS Intraoperative ventilation maintaining lower driving pressure was associated with a lower risk of nonhome discharge, which can be partially explained by lowered rates of postoperative respiratory failure. Future randomized controlled trials should target driving pressure as a potential intervention to decrease nonhome discharge.
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Affiliation(s)
- Tim M Tartler
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA, 02215, USA
- Center for Anesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Luca J Wachtendorf
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA, 02215, USA
- Center for Anesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
- Department of Anesthesiology, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY, USA
| | - Aiman Suleiman
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA, 02215, USA
- Center for Anesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
- Department of Anesthesia and Intensive Care, Faculty of Medicine, The University of Jordan, Amman, Jordan
| | - Michael Blank
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA, 02215, USA
- Center for Anesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
- Department of Anesthesiology, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY, USA
| | - Elena Ahrens
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA, 02215, USA
- Center for Anesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Felix C Linhardt
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA, 02215, USA
- Center for Anesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
- Department of Anesthesiology, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY, USA
| | - Friederike C Althoff
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA, 02215, USA
- Center for Anesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Guanqing Chen
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA, 02215, USA
- Center for Anesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Peter Santer
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA, 02215, USA
- Center for Anesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Alexander Nagrebetsky
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Matthias Eikermann
- Department of Anesthesiology, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY, USA
- Klinik für Anästhesiologie und Intensivmedizin, Universität Duisburg-Essen, Essen, Germany
| | - Maximilian S Schaefer
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA, 02215, USA.
- Center for Anesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
- Klinik für Anästhesiologie, Universitätsklinikum Düsseldorf, Düsseldorf, Germany.
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75
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Hennessey E, Bittner E, White P, Kovar A, Meuchel L. Intraoperative Ventilator Management of the Critically Ill Patient. Anesthesiol Clin 2023; 41:121-140. [PMID: 36871995 PMCID: PMC9985493 DOI: 10.1016/j.anclin.2022.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
Strategies for the intraoperative ventilator management of the critically ill patient focus on parameters used for lung protective ventilation with acute respiratory distress syndrome, preventing or limiting the deleterious effects of mechanical ventilation, and optimizing anesthetic and surgical conditions to limit postoperative pulmonary complications for patients at risk. Patient conditions such as obesity, sepsis, the need for laparoscopic surgery, or one-lung ventilation may benefit from intraoperative lung protective ventilation strategies. Anesthesiologists can use risk evaluation and prediction tools, monitor advanced physiologic targets, and incorporate new innovative monitoring techniques to develop an individualized approach for patients.
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Affiliation(s)
- Erin Hennessey
- Stanford University - School of Medicine Department of Anesthesiology, Perioperative and Pain Medicine, 300 Pasteur Drive, Room H3580, Stanford, CA 94305, USA.
| | - Edward Bittner
- Department of Anesthesia, Critical Care and Pain Medicine, Harvard Medical School, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Peggy White
- University of Florida College of Medicine, Department of Anesthesiology, 1500 SW Archer Road, PO Box 100254, Gainesville, FL 32610, USA
| | - Alan Kovar
- Oregon Health and Science University, 3161 SW Pavilion Loop, Portland, OR 97239, USA
| | - Lucas Meuchel
- Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA
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76
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Fuller BM, Mohr NM, Ablordeppey E, Roman O, Mittauer D, Yan Y, Kollef MH, Carpenter CR, Roberts BW. The Practice Change and Clinical Impact of Lung-Protective Ventilation Initiated in the Emergency Department: A Secondary Analysis of Individual Patient-Level Data From Prior Clinical Trials and Cohort Studies. Crit Care Med 2023; 51:279-290. [PMID: 36374044 PMCID: PMC10907984 DOI: 10.1097/ccm.0000000000005717] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVES Mechanically ventilated emergency department (ED) patients experience high morbidity and mortality. In a prior trial at our center, ED-based lung-protective ventilation was associated with improved care delivery and outcomes. Whether this strategy has persisted in the years after the trial remains unclear. The objective was to assess practice change and clinical outcomes associated with ED lung-protective ventilation. DESIGN Secondary analysis of individual patient-level data from prior clinical trials and cohort studies. SETTING ED and ICUs of a single academic center. PATIENTS Mechanically ventilated adults. INTERVENTIONS A lung-protective ventilator protocol used as the default approach in the ED. MEASUREMENTS AND MAIN RESULTS The primary ventilator-related outcome was tidal volume, and the primary clinical outcome was hospital mortality. Secondary outcomes included ventilator-, hospital-, and ICU-free days. Multivariable logistic regression, propensity score (PS)-adjustment, and multiple a priori subgroup analyses were used to evaluate outcome as a function of the intervention. A total of 1,796 patients in the preintervention period and 1,403 patients in the intervention period were included. In the intervention period, tidal volume was reduced from 8.2 mL/kg predicted body weight (PBW) (7.3-9.1) to 6.5 mL/kg PBW (6.1-7.1), and low tidal volume ventilation increased from 46.8% to 96.2% ( p < 0.01). The intervention period was associated with lower mortality (35.9% vs 19.1%), remaining significant after multivariable logistic regression analysis (adjusted odds ratio [aOR], 0.43; 95% CI, 0.35-0.53; p < 0.01). Similar results were seen after PS adjustment and in subgroups. The intervention group had more ventilator- (18.8 [10.1] vs 14.1 [11.9]; p < 0.01), hospital- (12.2 [9.6] vs 9.4 [9.5]; p < 0.01), and ICU-free days (16.6 [10.1] vs 13.1 [11.1]; p < 0.01). CONCLUSIONS ED lung-protective ventilation has persisted in the years since implementation and was associated with improved outcomes. These data suggest the use of ED-based lung-protective ventilation as a means to improve outcome.
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Affiliation(s)
- Brian M Fuller
- Departments of Emergency Medicine and Anesthesiology, Division of Critical Care, Washington University School of Medicine in St. Louis, St. Louis, MO
| | - Nicholas M Mohr
- Departments of Emergency Medicine and Anesthesiology, Division of Critical Care, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA
| | - Enyo Ablordeppey
- Departments of Emergency Medicine and Anesthesiology, Division of Critical Care, Washington University School of Medicine in St. Louis, St. Louis, MO
| | - Olivia Roman
- Department of Emergency Medicine, Washington University School of Medicine in St. Louis, St. Louis, MO
| | - Dylan Mittauer
- Washington University School of Medicine in St. Louis, St. Louis, MO
| | - Yan Yan
- Division of Public Health Sciences, Department of Surgery, Division of Biostatistics, Washington University School of Medicine, St. Louis, MO
| | - Marin H Kollef
- Department of Emergency Medicine, Cooper University Hospital, Camden, NJ
| | - Christopher R Carpenter
- Department of Emergency Medicine, Washington University School of Medicine in St. Louis, St. Louis, MO
| | - Brian W Roberts
- Departments of Emergency Medicine and Anesthesiology, Division of Critical Care, Washington University School of Medicine in St. Louis, St. Louis, MO
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Bian J, Liang H, Zhang M. Comparison of Clinical Effectiveness Between Ambroxol and N-Acetylcysteine in Surgical Patients: A Retrospective Cohort Study. J Clin Pharmacol 2023; 63:172-179. [PMID: 36263951 DOI: 10.1002/jcph.2157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 09/13/2022] [Indexed: 01/18/2023]
Abstract
Postoperative pulmonary complications (PPCs) are a major cause of postoperative morbidity, mortality, and longer hospital stays. Expectorants are widely used during the perioperative period to reduce PPCs. This study aimed to compare the clinical effectiveness between ambroxol (AMB) and N-acetylcysteine (NAC) in patients undergoing surgery. A multicenter, retrospective cohort study was conducted using deidentified medical records from hospital information system. Between July 1, 2015, and November 30, 2017, patients aged ≥18 years, who received intravenous AMB or nebulized NAC as the only expectorant therapy for >3 days during their hospitalization for thoracic, abdominal, and neurosurgery, were included in this study. The clinical outcomes were evaluated, and propensity score matching was used to adjust significant differences between 2 groups. A total of 4025 cases in the AMB group and 2062 in NAC group after propensity score matching were identified. The incidence of PPCs (13.9% vs 11.6%; P = .013), postoperative sputum suction (17.2% vs 8.0%; P < .001), intensive care unit admission after surgery (25.1% vs 22.5%; P = .024), and postoperative mechanical ventilation (22.3% versus 17.5%; P < .001) in the AMB group were all significantly higher than those in the NAC group. This study suggested that patients treated with NAC during the perioperative period had a significantly lower risk of PPCs. However, further prospective study is needed to ensure the replicability of our findings.
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Affiliation(s)
- Jiaming Bian
- Department of Pharmacology, The 7th Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Hong Liang
- Department of Pharmacology, The 7th Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Mei Zhang
- Department of Pharmacology, The 7th Medical Center of Chinese PLA General Hospital, Beijing, China
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Hao C, Ma X, Piao X, Fu Y, Ma L, Mi W, Berra L, Li C, Zhang C. Effects of positive end-expiratory pressure and oxygen concentration on non-hypoxemic apnea time during face mask ventilation of anesthesia induction: A randomized controlled trial. Front Physiol 2023; 13:1090612. [PMID: 36699691 PMCID: PMC9868662 DOI: 10.3389/fphys.2022.1090612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Accepted: 12/12/2022] [Indexed: 01/11/2023] Open
Abstract
Background: The optimal ventilatory strategy for the face mask ventilation during anesthesia induction is still unknow. Methods: We evaluated the effect of two positive end-expiratory pressure (PEEP) levels (0 cmH2O and 6 cmH2O) and two oxygen concentration levels (1.0 and .6) on non-hypoxemic apnea time during face mask ventilation of anesthesia induction. Sixty adult patients scheduled for elective surgery were enrolled in this study. The patients were randomized to receive anesthesia induction with four different ventilation strategy under volume-controlled ventilation. Patients assigned to the LOZP group received low fraction of inspiration O2 (FiO2 = .6) and 0 PEEP. Patients assigned to the LOHP group received low fraction of inspiration O2 (FiO2 = .6) and 6 cmH2O PEEP. Patients assigned to the HOZP group received high fraction of inspiration O2 (FiO2 = 1.0) and 0 PEEP. Patients assigned to the HOHP group received high fraction of inspiration O2 (FiO2 = 1.0) and 6cmH2O PEEP. After 3 min of ventilation, the patient was intubated but disconnected from the breathing circuit. Ventilation was not initiated until the pulse oximetry dropped to 90%. The primary outcome was non-hypoxemic apnea time defined as the time from cessation of ventilation to a pulse oximeter reading of 90%. The secondary outcome was the PaO2/FiO2 ratio immediately after ventilation. Results: The non-hypoxemic apnea time was significantly longer in the group of HOHP when compared to the other three groups (192 s ± 70 s, 221 s ± 74 s, 284 s ± 101 s, and 353 s ± 85 s in the LOZP, LOHP, HOZP, and HOHP group, respectively). The PaO2/FiO2 ratio immediately after ventilation was significantly higher in the group of LOHP when compared to the other three groups (LOZP 393 ± 130, LOHP 496 ± 97, HOZP 335 ± 58, HOHP 391 ± 50). When compared the PaO2/FiO2 ratio immediately after ventilation to its value before administration of anesthesia, the PaO2/FiO2 ratio in the group of LOHP was improved, the group LOZP and HOHP remained the same, while the group HOZP significantly decreased. Conclusion: Application of PEEP and 100% of oxygen during face mask ventilation of induction could maximize the non-hypoxemic apnea time. However, the use of PEEP and 60% of oxygen during preoxygenation resulted in improved PaO2/FiO2 ratio.
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Affiliation(s)
- Chunxiang Hao
- Department of Anesthesiology, First Medical Centre of Chinese PLA General Hospital, Beijing, China
| | - Xiaojing Ma
- Department of Anesthesiology, First Medical Centre of Chinese PLA General Hospital, Beijing, China
| | - Xiangmei Piao
- Department of Anesthesiology, First Medical Centre of Chinese PLA General Hospital, Beijing, China
| | - Yunke Fu
- Department of Anesthesiology, First Medical Centre of Chinese PLA General Hospital, Beijing, China
| | - Libin Ma
- Department of Anesthesiology, First Medical Centre of Chinese PLA General Hospital, Beijing, China
| | - Weidong Mi
- Department of Anesthesiology, First Medical Centre of Chinese PLA General Hospital, Beijing, China
| | - Lorenzo Berra
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Boston, MA, United States
| | - Changtian Li
- Faculty of Hepato-Pancreato-Biliary Surgery, Chinese PLA General Hospital, Beijing, China,*Correspondence: Changtian Li, ; Changsheng Zhang, ; Weidong Mi,
| | - Changsheng Zhang
- Department of Anesthesiology, First Medical Centre of Chinese PLA General Hospital, Beijing, China,*Correspondence: Changtian Li, ; Changsheng Zhang, ; Weidong Mi,
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Carsetti A, Vitali E, Pesaresi L, Antolini R, Casarotta E, Damiani E, Adrario E, Donati A. Anesthetic management of patients with sepsis/septic shock. Front Med (Lausanne) 2023; 10:1150124. [PMID: 37035341 PMCID: PMC10076637 DOI: 10.3389/fmed.2023.1150124] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 02/28/2023] [Indexed: 04/11/2023] Open
Abstract
Sepsis is defined as life-threatening organ dysfunction caused by a dysregulated host response to infection, while septic shock is a subset of sepsis with persistent hypotension requiring vasopressors to maintain a mean arterial pressure (MAP) of ≥65 mmHg and having a serum lactate level of >2 mmol/L, despite adequate volume resuscitation. Sepsis and septic shock are medical emergencies and time-dependent diseases with a high mortality rate for which early identification, early antibiotic therapy, and early source control are paramount for patient outcomes. The patient may require surgical intervention or an invasive procedure aiming to control the source of infection, and the anesthesiologist has a pivotal role in all phases of patient management. During the preoperative assessment, patients should be aware of all possible organ dysfunctions, and the severity of the disease combined with the patient's physiological reserve should be carefully assessed. All possible efforts should be made to optimize conditions before surgery, especially from a hemodynamic point of view. Anesthetic agents may worsen the hemodynamics of shock patients, and the anesthesiologist must know the properties of each anesthetic agent. All possible efforts should be made to maintain organ perfusion supporting hemodynamics with fluids, vasoactive agents, and inotropes if required.
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Affiliation(s)
- Andrea Carsetti
- Department of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy
- Anesthesia and Intensive Care Unit, Azienda Ospedaliero Universitaria delle Marche, Ancona, Italy
- *Correspondence: Andrea Carsetti
| | - Eva Vitali
- Department of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy
| | - Lucia Pesaresi
- Department of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy
| | - Riccardo Antolini
- Department of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy
| | - Erika Casarotta
- Department of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy
| | - Elisa Damiani
- Department of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy
- Anesthesia and Intensive Care Unit, Azienda Ospedaliero Universitaria delle Marche, Ancona, Italy
| | - Erica Adrario
- Department of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy
- Anesthesia and Intensive Care Unit, Azienda Ospedaliero Universitaria delle Marche, Ancona, Italy
| | - Abele Donati
- Department of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy
- Anesthesia and Intensive Care Unit, Azienda Ospedaliero Universitaria delle Marche, Ancona, Italy
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80
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O'Keeffe T, Donaldson RE. Mechanical ventilation in dogs and cats with tick paralysis. Front Vet Sci 2023; 10:1071191. [PMID: 37089405 PMCID: PMC10117792 DOI: 10.3389/fvets.2023.1071191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 03/22/2023] [Indexed: 04/25/2023] Open
Abstract
Respiratory failure from tick paralysis (TP) is an important cause of mortality in cats and dogs in Australia, occurring from a combination of respiratory muscle paralysis, upper respiratory tract obstruction and pulmonary disease. Patients may require positive-pressure ventilation in management of any combination of hypoxemia, hypoventilation or respiratory fatigue, but may also require airway management due to laryngeal paralysis. No single ventilation strategy is recommended due to the heterogenous disease presentations. Lung protective ventilation should be used in patients with pulmonary disease. Due to local and systemic effects of TP, patients are at higher risk of complications such as aspiration pneumonia and corneal ulceration and may have additional intravenous fluid and nutritional considerations. Treatment with hyperimmune serum is associated with improved outcomes. Prognosis is considered good with documented survival to discharge (STD) of 52.6-77% for animals with TP ventilated with lung disease and 90.5% for animals without lung disease. Median reported duration of ventilation for TP ranges from 23 to 48 h (range 3 h-10 days). The severity of individual neuromuscular signs and the presence of associated conditions such as aspiration pneumonia and laryngeal paralysis may necessitate longer periods of mechanical ventilation. This review aims to summarize the current recommendations regarding indications, management and prognosis of cats and dogs undergoing MV for TP and to identify areas for future research.
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81
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Driving pressure-guided ventilation improves homogeneity in lung gas distribution for gynecological laparoscopy: a randomized controlled trial. Sci Rep 2022; 12:21687. [PMID: 36522433 PMCID: PMC9755264 DOI: 10.1038/s41598-022-26144-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022] Open
Abstract
To investigate whether driving pressure-guided ventilation could contribute to a more homogeneous distribution in the lung for gynecological laparoscopy. Chinese patients were randomized, after pneumoperitoneum, to receive either positive end expiratory pressure (PEEP) of 5 cm H2O (control group), or individualized PEEP producing the lowest driving pressure (titration group). Ventilation homogeneity is quantified as the global inhomogeneity (GI) index based on electrical impedance tomography, with a lower index implying more homogeneous ventilation. The perioperative arterial oxygenation index and respiratory system mechanics were also recorded. Blood samples were collected for lung injury biomarkers including interleukin-10, neutrophil elastase, and Clara Cell protein-16. A total of 48 patients were included for analysis. We observed a significant increase in the GI index immediately after tracheal extubation compared to preinduction in the control group (p = 0.040) but not in the titration group (p = 0.279). Furthermore, the GI index was obviously lower in the titration group than in the control group [0.390 (0.066) vs 0.460 (0.074), p = 0.0012]. The oxygenation index and respiratory compliance were significantly higher in the titration group than in the control group. No significant differences in biomarkers or hemodynamics were detected between the two groups. Driving pressure-guided PEEP led to more homogeneous ventilation, as well as improved gas exchange and respiratory compliance for patients undergoing gynecological laparoscopy.Trial Registration: ClinicalTrials.gov NCT04374162; first registration on 05/05/2020.
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82
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Gómez Fernández L, Potter J, Hughes JML, Fernandez Perez C, Brama PAJ, Niimura Del Barrio MC. Effects of two alveolar recruitment manoeuvres (sustained inflation and stepwise) followed by positive end-expiratory pressure on cardiac output (measured with lithium dilution), invasive blood pressure and arterial oxygen tension in isoflurane-anaesthetised goats. Res Vet Sci 2022; 150:195-203. [PMID: 35842951 DOI: 10.1016/j.rvsc.2022.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 04/03/2022] [Accepted: 07/07/2022] [Indexed: 11/22/2022]
Abstract
Alveolar recruitment manoeuvres (ARM) performed during general anaesthesia improve oxygenation; however cardiovascular depression may be observed. The aim of the study was to compare the effects of sustained inflation (SI) and stepwise ARMs on cardiac output (CO), mean arterial blood pressure and arterial oxygen tension (PaO2) in ten mechanically ventilated goats anaesthetised with isoflurane. In the SI ARM, peak inspiratory presure (PIP) was increased to 30 cmH2O and sustained for 20 s. In the stepwise ARM, the PIP was increased by 5 cmH2O each minute for three minutes from 10 to 25 cmH2O. Both ARMs were followed by positive end-expiratory pressure of 5 cmH2O. Paired lithium dilution CO measurements and arterial blood samples were obtained before and after each ARM. The order of the ARM was randomised and each goat was subjected to both techniques. Data was reported as median and interquartile range (IQR). Significance was set at 0.05. The median change in CO (measured by subtracting values after and before ARM) was -0.15 L min-1 (IQR -0.51; 0.03) and - 0.90 L min-1 (IQR -1.69; -0.58) for SI and stepwise ARM respectively (p = 0.04). The median change in PaO2 was 3 kPa (IQR -2.7; 7.6) and 0.4 kPa (IQR -3.4; 5.5) for SI and stepwise ARM respectively (p = 0.03). In conclusion, SI ARM causes less impact on CO and provides a better improvement in PaO2 compared to stepwise ARM in goats.
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Affiliation(s)
- L Gómez Fernández
- University College Dublin, UCD Veterinary Hospital, Belfield, Dublin 4 D04W6F6, Ireland; Department of Small Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK S7N 5B4, Canada.
| | - J Potter
- University College Dublin, UCD Veterinary Hospital, Belfield, Dublin 4 D04W6F6, Ireland
| | - J M L Hughes
- University College Dublin, UCD Veterinary Hospital, Belfield, Dublin 4 D04W6F6, Ireland
| | - C Fernandez Perez
- Servicio de Medicina Preventiva, Área Sanitaria de Santiago de Compostela y Barbanza, Instituto de Investigación Sanitaria de Santiago de Compostela, A Coruña, Spain
| | - P A J Brama
- University College Dublin, UCD Veterinary Hospital, Belfield, Dublin 4 D04W6F6, Ireland
| | - M C Niimura Del Barrio
- Lumbry Park Veterinary Specialists, Selborne Road, Alton, Hampshire GU34 3HL, United Kingdom
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83
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Yurashevich M, Taylor CR, Dominguez JE, Habib AS. Anesthesia and Analgesia for the Obese Parturient. Adv Anesth 2022; 40:185-200. [PMID: 36333047 DOI: 10.1016/j.aan.2022.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Obesity is a worldwide epidemic and is associated with an increased risk of hypertension, diabetes, and obstructive sleep apnea. Pregnant patients with obesity experience a higher risk of maternal and fetal complications. Anesthesia also poses higher risks for obese parturients and may be more technically challenging due to body habitus. Safe anesthesia practice for these patients must take into consideration the unique challenges associated with the combination of pregnancy and obesity.
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Affiliation(s)
- Mary Yurashevich
- Department of Anesthesiology, Division of Women's Anesthesia, Duke University School of Medicine, Durham, NC 27710, USA
| | - Cameron R Taylor
- Department of Anesthesiology, Division of Women's Anesthesia, Duke University School of Medicine, Durham, NC 27710, USA
| | - Jennifer E Dominguez
- Department of Anesthesiology, Division of Women's Anesthesia, Duke University School of Medicine, Durham, NC 27710, USA
| | - Ashraf S Habib
- Department of Anesthesiology, Division of Women's Anesthesia, Duke University School of Medicine, Durham, NC 27710, USA.
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84
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Kalmar AF, Van Der Vekens N, De Rydt F, Allaert S, Van De Velde M, Mulier J. Minimizing sevoflurane wastage by sensible use of automated gas control technology in the flow-i workstation: an economic and ecological assessment. J Clin Monit Comput 2022; 36:1601-1610. [PMID: 34978655 PMCID: PMC9637609 DOI: 10.1007/s10877-021-00803-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 12/27/2021] [Indexed: 11/14/2022]
Abstract
Both ecological and economic considerations dictate minimising wastage of volatile anaesthetics. To reconcile apparent opposing stakes between ecological/economical concerns and stability of anaesthetic delivery, new workstations feature automated software that continually optimizes the FGF to reliably obtain the requested gas mixture with minimal volatile anaesthetic waste. The aim of this study is to analyse the kinetics and consumption pattern of different approaches of sevoflurane delivery with the same 2% end-tidal goal in all patients. The consumption patterns of sevoflurane of a Flow-i were retrospectively studied in cases with a target end-tidal sevoflurane concentration (Etsevo) of 2%. For each setting, 25 cases were included in the analysis. In Automatic Gas Control (AGC) regulation with software version V4.04, a speed setting 6 was observed; in AGC software version V4.07, speed settings 2, 4, 6 and 8 were observed, as well as a group where a minimal FGF was manually pursued and a group with a fixed 2 L/min FGF. In 45 min, an average of 14.5 mL was consumed in the 2L-FGF group, 5.0 mL in the minimal-manual group, 7.1 mL in the AGC4.04 group and 6.3 mL in the AGC4.07 group. Faster speed AGC-settings resulted in higher consumption, from 6.0 mL in speed 2 to 7.3 mL in speed 8. The Etsevo target was acquired fastest in the 2L-FGF group and the Etsevo was more stable in the AGC groups and the 2L-FGF groups. In all AGC groups, the consumption in the first 8 min was significantly higher than in the minimal flow group, but then decreased to a comparable rate. The more recent AGC4.07 algorithm was more efficient than the older AGC4.04 algorithm. This study indicates that the AGC technology permits very significant economic and ecological benefits, combined with excellent stability and convenience, over conventional FGF settings and should be favoured. While manually regulated minimal flow is still slightly more economical compared to the automated algorithm, this comes with a cost of lower precision of the Etsevo. Further optimization of the AGC algorithms, particularly in the early wash-in period seems feasible. In AGC mode, lower speed settings result in significantly lower consumption of sevoflurane. Routine clinical practice using what historically is called "low flow anaesthesia" (e.g. 2 L/min FGF) should be abandoned, and all anaesthesia machines should be upgraded as soon as possible with automatic delivery technology to minimize atmospheric pollution with volatile anaesthetics.
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Affiliation(s)
- Alain F Kalmar
- Department of Anesthesiology, Reanimation and Intensive Care, AZ Sint Jan Brugge-Oostende, Brugge, Belgium.
- Department of Anesthesia, Ghent University, Gent, Belgium.
| | - Nicky Van Der Vekens
- Departmen of Anesthesia and Critical Care Medicine, Maria Middelares Hospital, Gent, Belgium
| | - Fréderic De Rydt
- Departmen of Anesthesia and Critical Care Medicine, Maria Middelares Hospital, Gent, Belgium
- Department of Anesthesiology, UZLeuven, Leuven, Belgium
| | - Silvie Allaert
- Departmen of Anesthesia and Critical Care Medicine, Maria Middelares Hospital, Gent, Belgium
| | - Marc Van De Velde
- Department of Cardiovascular Sciences, KULeuven, Leuven, Belgium
- Department of Anesthesiology, UZLeuven, Leuven, Belgium
| | - Jan Mulier
- Department of Anesthesiology, Reanimation and Intensive Care, AZ Sint Jan Brugge-Oostende, Brugge, Belgium
- Department of Anesthesia, Ghent University, Gent, Belgium
- Department of Anesthesiology, KULeuven - University of Leuven, Leuven, Belgium
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85
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Cheng M, Ni L, Huang L, Zhou Y, Wang K. Effect of positive end-expiratory pressure on pulmonary compliance and pulmonary complications in patients undergoing robot-assisted laparoscopic radical prostatectomy: a randomized control trial. BMC Anesthesiol 2022; 22:347. [DOI: 10.1186/s12871-022-01869-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 10/18/2022] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
To observe the effects of different positive end-expiratory pressure (PEEP) ventilation strategies on pulmonary compliance and complications in patients undergoing robotic-assisted laparoscopic prostate surgery.
Methods
A total of 120 patients with the American Society of Anesthesiologists Physical Status Class I or II who underwent elective robotic-assisted laparoscopic prostatectomy were enrolled. We randomized the patients divided into divided into three groups of 40 patients each: PEEP0, PEEP5, or PEEP10. Master Anesthetist used volume control ventilation intraoperatively with an intraoperative deep muscle relaxation strategy. Respiratory mechanics indexes were recorded at six time-points: 10 mimuts after anaesthesia induction, immediately after pneumoperitoneum establishment, 30 min, 60 min, 90 min, and at the end of pneumoperitoneum. Arterial blood gas analysis and oxygenation index calculation were performed 10 mimuts after anaesthesia induction, 60 mimuts after pneumoperitoneum, and after tracheal extubation. Postoperative pulmonary complications were also recorded.
Results
After pneumoperitoneum, peak inspiratory pressure (Ppeak), plateau pressure (Pplat), mean pressure (Pmean), driving pressure (ΔP), and airway resistance (Raw) increased significantly, and pulmonary compliance (Crs) decreased, persisting during pneumoperitoneum in all groups. Between immediately after pneumoperitoneum establishment, 30 min, 60 min, and 90 min, pulmonary compliance in the 10cmH2OPEEP group was higher than in the 5cmH2OPEEP (P < 0.05) and 0cmH2OPEEP groups(P < 0.05). The driving pressure (ΔP) immediately after pneumoperitoneum establishment, at 30 min, 60 min, and 90 min in the 10cmH2OPEEP group was lower than in the 5cmH2OPEEP (P < 0.05) and 0cmH2OPEEP groups (P < 0.05). Sixty min after pneumoperitoneum and tracheal extubation, the PaCO2 did not differ significantly among the three groups (P > 0.05). The oxygenation index (PaO2/FiO2) was higher in the PEEP5 group than in the PEEP0 and PEEP10 groups 60 min after pneumoperitoneum and after tracheal extubation, with a statistically significant difference (P < 0.05). In postoperative pulmonary complications, the incidence of atelectasis was higher in the PEEP0 group than in the PEEP5 and PEEP10 groups, with a statistically significant difference (p < 0.05).
Conclusion
The use of PEEP at 5cmH2O during RARP increases lung compliance, improves intraoperative oxygenation index and reduces postoperative atelectasis.
Trial registration
This study was registered in the China Clinical Trials Registry on May 30, 2020 (Registration No. ChiCTR2000033380).
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86
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Li XF, Jin L, Yang JM, Luo QS, Liu HM, Yu H. Effect of ventilation mode on postoperative pulmonary complications following lung resection surgery: a randomised controlled trial. Anaesthesia 2022; 77:1219-1227. [PMID: 36066107 DOI: 10.1111/anae.15848] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/11/2022] [Indexed: 01/07/2023]
Abstract
The effect of intra-operative mechanical ventilation modes on pulmonary outcomes after thoracic surgery with one-lung ventilation has not been well established. We evaluated the impact of three common ventilation modes on postoperative pulmonary complications in patients undergoing lung resection surgery. In this two-centre randomised controlled trial, 1224 adults scheduled for lung resection surgery with one-lung ventilation were randomised to one of three groups: volume-controlled ventilation; pressure-controlled ventilation; and pressure-control with volume guaranteed ventilation. Enhanced recovery after surgery pathways and lung-protective ventilation protocols were implemented in all groups. The primary outcome was a composite of postoperative pulmonary complications within the first seven postoperative days. The outcome occurred in 270 (22%), with 87 (21%) in the volume control group, 89 (22%) in the pressure control group and 94 (23%) in the pressure-control with volume guaranteed group (p = 0.831). The secondary outcomes also did not differ across study groups. In patients undergoing lung resection surgery with one-lung ventilation, the choice of ventilation mode did not influence the risk of developing postoperative pulmonary complications. This is the first randomised controlled trial examining the effect of three ventilation modes on pulmonary outcomes in patients undergoing lung resection surgery.
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Affiliation(s)
- X-F Li
- Department of Anaesthesiology, West China Hospital of Sichuan University, Chengdu, China
| | - L Jin
- Department of Anaesthesiology, Leshan People's Hospital, Leshan, China
| | - J-M Yang
- Department of Anaesthesiology, Leshan People's Hospital, Leshan, China
| | - Q-S Luo
- Department of Anaesthesiology, Leshan People's Hospital, Leshan, China
| | - H-M Liu
- Department of Anaesthesiology, West China Hospital of Sichuan University, Chengdu, China
| | - H Yu
- Department of Anaesthesiology, West China Hospital of Sichuan University, Chengdu, China
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87
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Sandeep B, Xiao Z, Zhao F, Feng Q, Gao K. Role of Platelets in Acute Lung Injury After Extracorporeal Circulation in Cardiac Surgery Patients: A Systemic Review. Curr Probl Cardiol 2022; 47:101088. [PMID: 34936908 DOI: 10.1016/j.cpcardiol.2021.101088] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 12/15/2021] [Indexed: 11/15/2022]
Abstract
In vitro circulation (cardiopulmonary bypass, CPB) has been widely used in heart surgery. In the past, it was believed that the reduction of platelet count and impaired platelet function during cardiac surgery were the main causes of acute lung injury (ALI). ALI is a life-threatening clinical syndrome in critically ill patients due to an uncontrolled systemic inflammatory response resulting from direct injury to the lung or indirect injury in the setting of a systemic process. Platelets have an emerging and incompletely understood role in a myriad of ALI after extracorporeal circulation in cardiac surgery patients. An electronic literature search was performed using Pubmed, Scopus and Cinahl investigating ALI, pathogenesis, and role of platelets, treatment and management for ALI patients. Many studies have shown that in vitro circulation is a nonphysiological process that can lead to a decrease in the number of platelets and impaired platelet function, as well as varying degrees of lung damage. The relationship between the effects of in vitro circulation on platelets and acute lung injury is still controversial. This review article discusses the role of platelets in lung injury after cardiopulmonary bypass and resent development in the management of ALI.
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Affiliation(s)
- Bhushan Sandeep
- Department of Cardiothoracic Surgery, Chengdu Second People's Hospital, Chengdu, Sichuan, China
| | - Zongwei Xiao
- Department of Cardiothoracic Surgery, Chengdu Second People's Hospital, Chengdu, Sichuan, China
| | - Fengying Zhao
- Department of Intensive Care Unit, Chengdu Second People's Hospital, Chengdu, Sichuan, China
| | - Qianru Feng
- Department of Intensive Care Unit, Chengdu Second People's Hospital, Chengdu, Sichuan, China
| | - Ke Gao
- Department of Cardiothoracic Surgery, Chengdu Second People's Hospital, Chengdu, Sichuan, China.
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88
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Vail EA, Tung A. A Roadmap to Optimize Intraoperative Mechanical Ventilation. Anesth Analg 2022; 135:967-970. [PMID: 36269986 PMCID: PMC9589916 DOI: 10.1213/ane.0000000000006158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Emily A Vail
- From the Department of Anesthesiology and Critical Care, Hospital of the University of Pennsylvania, University of Pennsylvania Perelman School of Medicine Philadelphia, Pennsylvania
- Penn Center for Perioperative Outcomes Research and Transformation, Philadelphia, Pennsylvania
| | - Avery Tung
- Department of Anesthesia and Critical Care, University of Chicago Medicine, Chicago, Illinois
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89
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Bolther M, Henriksen J, Holmberg MJ, Jessen MK, Vallentin MF, Hansen FB, Holst JM, Magnussen A, Hansen NS, Johannsen CM, Enevoldsen J, Jensen TH, Roessler LL, Carøe Lind P, Klitholm MP, Eggertsen MA, Caap P, Boye C, Dabrowski KM, Vormfenne L, Høybye M, Karlsson M, Balleby IR, Rasmussen MS, Pælestik K, Granfeldt A, Andersen LW. Ventilation Strategies During General Anesthesia for Noncardiac Surgery: A Systematic Review and Meta-Analysis. Anesth Analg 2022; 135:971-985. [PMID: 35703253 DOI: 10.1213/ane.0000000000006106] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND The optimal ventilation strategy during general anesthesia is unclear. This systematic review investigated the relationship between ventilation targets or strategies (eg, positive end-expiratory pressure [PEEP], tidal volume, and recruitment maneuvers) and postoperative outcomes. METHODS PubMed and Embase were searched on March 8, 2021, for randomized trials investigating the effect of different respiratory targets or strategies on adults undergoing noncardiac surgery. Two investigators reviewed trials for relevance, extracted data, and assessed risk of bias. Meta-analyses were performed for relevant outcomes, and several subgroup analyses were conducted. The certainty of evidence was evaluated using Grading of Recommendations Assessment, Development and Evaluation (GRADE). RESULTS This review included 63 trials with 65 comparisons. Risk of bias was intermediate for all trials. In the meta-analyses, lung-protective ventilation (ie, low tidal volume with PEEP) reduced the risk of combined pulmonary complications (odds ratio [OR], 0.37; 95% confidence interval [CI], 0.28-0.49; 9 trials; 1106 patients), atelectasis (OR, 0.39; 95% CI, 0.25-0.60; 8 trials; 895 patients), and need for postoperative mechanical ventilation (OR, 0.36; 95% CI, 0.13-1.00; 5 trials; 636 patients). Recruitment maneuvers reduced the risk of atelectasis (OR, 0.44; 95% CI, 0.21-0.92; 5 trials; 328 patients). We found no clear effect of tidal volume, higher versus lower PEEP, or recruitment maneuvers on postoperative pulmonary complications when evaluated individually. For all comparisons across targets, no effect was found on mortality or hospital length of stay. No effect measure modifiers were found in subgroup analyses. The certainty of evidence was rated as very low, low, or moderate depending on the intervention and outcome. CONCLUSIONS Although lung-protective ventilation results in a decrease in pulmonary complications, randomized clinical trials provide only limited evidence to guide specific ventilation strategies during general anesthesia for adults undergoing noncardiac surgery.
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Affiliation(s)
- Maria Bolther
- From the Department of Anesthesiology and Intensive Care
| | | | - Mathias J Holmberg
- Research Center for Emergency Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Department of Cardiology, Viborg Regional Hospital, Viborg, Denmark
| | - Marie K Jessen
- Research Center for Emergency Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Mikael F Vallentin
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Prehospital Emergency Medical Services, Central Denmark Region, Aarhus, Denmark
| | | | | | | | | | | | | | - Thomas H Jensen
- Department of Internal Medicine, University Hospital of North Norway, Narvik, Norway
| | - Lara L Roessler
- Department of Emergency Medicine, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | | | | | - Mark A Eggertsen
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Philip Caap
- From the Department of Anesthesiology and Intensive Care
| | - Caroline Boye
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | | | - Lasse Vormfenne
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Maria Høybye
- Research Center for Emergency Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Mathias Karlsson
- Anesthesiology and Intensive Care, Aalborg University Hospital, Denmark
| | - Ida R Balleby
- National Hospital of the Faroe Islands, Torshavn, Faroe Islands
| | - Marie S Rasmussen
- Anesthesiology and Intensive Care, Aalborg University Hospital, Denmark
| | - Kim Pælestik
- Department of Anesthesiology and Intensive Care, Viborg Regional Hospital, Viborg, Denmark
| | - Asger Granfeldt
- From the Department of Anesthesiology and Intensive Care.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Lars W Andersen
- From the Department of Anesthesiology and Intensive Care.,Research Center for Emergency Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Prehospital Emergency Medical Services, Central Denmark Region, Aarhus, Denmark
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90
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Pei S, Wei W, Yang K, Yang Y, Pan Y, Wei J, Yao S, Xia H. Recruitment Maneuver to Reduce Postoperative Pulmonary Complications after Laparoscopic Abdominal Surgery: A Systematic Review and Meta-Analysis. J Clin Med 2022; 11:jcm11195841. [PMID: 36233708 PMCID: PMC9573602 DOI: 10.3390/jcm11195841] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/23/2022] [Accepted: 09/26/2022] [Indexed: 11/09/2022] Open
Abstract
Background: Lung-protective ventilation strategies are recommended for patients undergoing mechanical ventilation. However, there are currently no guidelines to follow regarding recruitment maneuvers (RMs). We attempted to identify the effects of RMs on patients undergoing laparoscopic abdominal surgery. Methods: We searched for randomized controlled trials (RCTs) in PubMed, the Cochrane Library databases, Embase, Web of Science and the ClinicalTrials.gov registry for trials published up to December 2021. The primary outcome was postoperative pulmonary complications (PPCs). The secondary outcomes consisted of the static lung compliance, driving pressure (DP), intraoperative oxygenation index (OI), OI in the post-anesthesia care unit (PACU), mean arterial pressure (MAP) and heart rate (HR). Seventeen RCTs with a total of 3480 patients were examined. Results: Patients who received RMs showed a considerable reduction in PPCs (risk ratio (RR) = 0.70; 95% confidence interval (CI): 0.62 to 0.79; p < 0.01), lower DP (weighted mean difference (WMD) = −3.96; 95% CI: −5.97 to −1.95; p < 0.01), elevated static lung compliance (WMD = 10.42; 95% CI: 6.13 to 14.71; p < 0.01) and improved OI (intraoperative: WMD = 53.54; 95% CI: 21.77 to 85.31; p < 0.01; PACU: WMD = 59.40; 95% CI: 39.10 to 79.69; p < 0.01) without substantial changes in MAP (WMD = −0.16; 95% CI −1.35 to 1.03; p > 0.05) and HR (WMD = −1.10; 95% CI: −2.29 to 0.10; p > 0.05). Conclusions: Recruitment maneuvers reduce postoperative pulmonary complications and improve respiratory mechanics and oxygenation in patients undergoing laparoscopic abdominal surgery. More data are needed to elucidate the effect of recruitment maneuver on the circulatory system.
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Affiliation(s)
- Shuaijie Pei
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Wei Wei
- Department of Anesthesiology, The People’s Hospital of Honghu, Honghu 433200, China
| | - Kai Yang
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yiyi Yang
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yu Pan
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jinrui Wei
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Shanglong Yao
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Correspondence: (S.Y.); (H.X.)
| | - Haifa Xia
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Department of Anesthesiology, The People’s Hospital of Honghu, Honghu 433200, China
- Department of Critical Care Medicine, The People’s Hospital of Honghu, Honghu 433200, China
- Correspondence: (S.Y.); (H.X.)
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91
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Sun Y, Deng XM, Cai Y, Shen SE, Dong LY. Post-cardiopulmonary bypass hypoxaemia in paediatric patients undergoing congenital heart disease surgery: risk factors, features, and postoperative pulmonary complications. BMC Cardiovasc Disord 2022; 22:430. [PMID: 36180821 PMCID: PMC9523995 DOI: 10.1186/s12872-022-02838-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 08/29/2022] [Indexed: 11/12/2022] Open
Abstract
Background Hypoxemia after cardiopulmonary bypass (CPB) is the quantifiable manifestation of pulmonary dysfunction. This retrospective study was designed to investigate the risk factors for post-cardiopulmonary bypass hypoxaemia and the features of hypoxaemia and pulmonary complications in paediatric congenital heart disease surgery involving CPB. Methods Data including demographics, preoperative pulmonary or cardiac parameters, and intraoperative interventions were retrospectively collected from 318 paediatric patients who underwent radical surgery with CPB for congenital heart disease. Among them, the factors that were significant by univariate analysis were screened for multivariate Cox regression. The lowest ratio of arterial oxygen tension and the inspiratory oxygen fraction (PaO2/FiO2), hypoxaemia (PaO2/FiO2 ≤ 300) insult time, duration of hypoxaemia, extubation time, and pulmonary complications were also analysed postoperatively. Results The morbidity of post-cardiopulmonary bypass hypoxaemia was 48.4% (154/318). Months (6 < months ≤ 12, 12 < months ≤ 36 and 36 < months compared with 0 ≤ months ≤ 6: HR 0.582, 95% CI 0.388–0.873; HR 0.398, 95% CI 0.251–0.632; HR 0.336, 95% CI 0.197–0.574, respectively; p < 0.01), preoperative intracardiac right-to-left shunting (HR 1.729, 95% CI 1.200–2.493, p = 0.003) and intraoperative pleural cavity entry (HR 1.582, 95% CI 1.128–2.219, p = 0.008) were identified as independent risk factors for the development of post-cardiopulmonary bypass hypoxaemia. Most hypoxaemia cases (83.8%, 129/154) occurred within 2 h, and the rate of moderate hypoxaemia (100 < PaO2/FiO2 ≤ 200) was 60.4% (93/154). Conclusion The morbidity of post-cardiopulmonary bypass hypoxaemia in paediatric congenital heart disease surgery was considerably high. Most hypoxaemia cases were moderate and occurred in the early period after CPB. Scrupulous management should be employed for younger infants or children with preoperative intracardiac right-to-left shunting or intraoperative pleural cavity entry.
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Affiliation(s)
- Yuan Sun
- Department of Anesthesiology and Critical Care Medicine, Xin Hua Hospital, Jiaotong University School of Medicine, No. 1665 Kongjiang Rd., Shanghai, 200092, China
| | - Xiao-Ming Deng
- Department of Anesthesiology and Intensive Care Medicine, Changhai Hospital affiliated to Naval Medical University, Shanghai, 200438, China
| | - Ying Cai
- Department of Anesthesiology and Critical Care Medicine, Xin Hua Hospital, Jiaotong University School of Medicine, No. 1665 Kongjiang Rd., Shanghai, 200092, China
| | - Sai-E Shen
- Department of Anesthesiology and Critical Care Medicine, Xin Hua Hospital, Jiaotong University School of Medicine, No. 1665 Kongjiang Rd., Shanghai, 200092, China.
| | - Li-Ya Dong
- Department of Cardiothoracic Surgery, Xin Hua Hospital, Jiaotong University School of Medicine, No. 1665 Kongjiang Rd., Shanghai, 20092, China.
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The effects of laryngeal mask airway versus endotracheal tube on atelectasis in patients undergoing general anesthesia assessed by lung ultrasound: A protocol for a prospective, randomized controlled trial. PLoS One 2022; 17:e0273410. [PMID: 36084154 PMCID: PMC9462747 DOI: 10.1371/journal.pone.0273410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 07/26/2022] [Indexed: 11/24/2022] Open
Abstract
Background The incidence of atelectasis is high in patients undergoing general anesthesia. This may cause oxygenation impairment and further contribute to postoperative pulmonary complications (PPCs). As important airway management devices for general anesthesia, few studies have compared the effects of laryngeal mask airway (LMA) and endotracheal tube (ETT) on atelectasis. Additionally, lung ultrasound has been increasingly used for bedside atelectasis diagnosis. For the above considerations, this trial is designed to compare the effects of LMA and ETT on atelectasis assessed by lung ultrasound scores, further providing more powerful clinical evidence for perioperative respiratory management of non-laparoscopic elective lower abdominal surgery under general anesthesia. Methods This is a prospective, single-center, single-blind, randomized controlled trial. From July 2021 to July 2022, 180 patients undergoing elective non-laparoscopic lower abdominal surgery under general anesthesia will be recruited and randomly divided into the ETT and LMA groups at a ratio of 1:1. The primary outcome is the total atelectasis LUS of 12 lung regions 15 min after the establishment of the artificial airway. The total atelectasis LUS at the end of surgery and 30 min after extubation, oxygenation index, postoperative airway complications, PPCs, and length of stay will be analyzed as secondary indicators. Trial registration ClinicalTrials.gov identifier: ChiCTR1900020818. Registered on January 20, 2019. Registered with the name of “Laryngeal mask airway versus endotracheal tube for atelectasis.” URL: https://www.chictr.org.cn/showproj.aspx?proj=35143.
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93
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Sterke F, van Weteringen W, Ventura L, Milesi I, Wijnen RMH, Vlot J, Dellacà RL. A novel method for monitoring abdominal compliance to optimize insufflation pressure during laparoscopy. Surg Endosc 2022; 36:7066-7074. [PMID: 35864355 PMCID: PMC9402757 DOI: 10.1007/s00464-022-09406-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 06/19/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Abdominal compliance describes the ease of expansion of the abdominal cavity. Several studies highlighted the importance of monitoring abdominal compliance (Cab) during the creation of laparoscopic workspace to individualize the insufflation pressure. The lack of validated clinical monitoring tools for abdominal compliance prevents accurate tailoring of insufflation pressure. Oscillometry, also known as the forced oscillation technique (FOT), is currently used to measure respiratory mechanics and has the potential to be adapted for monitoring abdominal compliance. This study aimed to define, develop and evaluate a novel approach which can monitor abdominal compliance during laparoscopy using endoscopic oscillometry. MATERIALS AND METHODS Endoscopic oscillometry was evaluated in a porcine model for laparoscopy. A custom-built insufflator was developed for applying an oscillatory pressure signal superimposed onto a mean intra-abdominal pressure. This insufflator was used to measure the abdominal compliance at insufflation pressures ranging from 5 to 20 hPa (3.75 to 15 mmHg). The measurements were compared to the static abdominal compliance, which was measured simultaneously with computed tomography imaging. RESULTS Endoscopic oscillometry recordings and CT images were obtained in 10 subjects, resulting in 76 measurement pairs for analysis. The measured dynamic Cab ranged between 0.0216 and 0.261 L/hPa while the static Cab based on the CT imaging ranged between 0.0318 and 0.364 L/hPa. The correlation showed a polynomial relation and the adjusted R-squared was 97.1%. CONCLUSIONS Endoscopic oscillometry can be used to monitor changes in abdominal compliance during laparoscopic surgery, which was demonstrated in this study with a comparison with CT imaging in a porcine laparoscopy model. Use of this technology to personalize the insufflation pressure could reduce the risk of applying excessive pressure and limit the drawbacks of insufflation.
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Affiliation(s)
- Frank Sterke
- Department of Pediatric Surgery, Erasmus MC Sophia Children’s Hospital, University Medical Center Rotterdam, Rotterdam, The Netherlands
- Department of Biomechanical Engineering, Delft University of Technology, Delft, The Netherlands
| | - Willem van Weteringen
- Department of Pediatric Surgery, Erasmus MC Sophia Children’s Hospital, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Lorenzo Ventura
- Department of Pediatric Surgery, Erasmus MC Sophia Children’s Hospital, University Medical Center Rotterdam, Rotterdam, The Netherlands
- Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano University, Milan, Italy
| | - Ilaria Milesi
- Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano University, Milan, Italy
| | - René M. H. Wijnen
- Department of Pediatric Surgery, Erasmus MC Sophia Children’s Hospital, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - John Vlot
- Department of Pediatric Surgery, Erasmus MC Sophia Children’s Hospital, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Raffaele L. Dellacà
- Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano University, Milan, Italy
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94
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Desebbe O, Mondor W, Gergele L, Raphael D, Vallier S. Variations of pulse pressure and central venous pressure may predict fluid responsiveness in mechanically ventilated patients during lung recruitment manoeuvre: an ancillary study. BMC Anesthesiol 2022; 22:269. [PMID: 35999508 PMCID: PMC9396758 DOI: 10.1186/s12871-022-01815-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 08/16/2022] [Indexed: 11/10/2022] Open
Abstract
Background Maintaining a constant driving pressure during a prolonged sigh breath lung recruitment manoeuvre (LRM) from 20 to 45 cmH20 peak inspiratory pressure in mechanically ventilated patients has been shown to be a functional test to predict fluid responsiveness (FR) when using a linear regression model of hemodynamic parameters, such as central venous pressure (CVP) and pulse pressure (PP). However, two important limitations have been raised, the use of high ventilation pressures and a regression slope calculation that is difficult to apply at bedside. This ancillary study aimed to reanalyse absolute variations of CVP (ΔCVP) and PP (ΔPP) values at lower stages of the LRM, (40, 35, and 30 cm H20 of peak inspiratory pressure) for their ability to predict fluid responsiveness. Methods Retrospective analysis of a prospective study data set in 18 mechanically ventilated patients, in an intensive care unit. CVP, systemic arterial pressure parameters and stroke volume (SV) were recorded during prolonged LRM followed by a 500 mL crystalloid volume expansion. Patients were considered as fluid responders if SV increased more than 10%. Receiver-operating curves (ROC) analysis with the corresponding grey zone approach were performed. Results Areas under the ROC to predict fluid responsiveness for ΔCVP and ΔPP were not different between the successive stepwise increase of inspiratory pressures [0.88 and 0.89 for ΔCVP at 45 and 30 cm H20 (P = 0.89), respectively, and 0.92 and 0.95 for ΔPP at 45 and 30 cm H20, respectively (P = 0.51)]. Using a maximum of 30 cmH2O inspiratory pressure during the LRM, ΔCVP and ΔPP had a threshold value to predict fluid responsiveness of 2 mmHg and 4 mmHg, with sensitivities of 89% and 89% and specificities of 67% and 89%, respectively. Combining ΔPP and ΔCVP decreased the proportion of the patients in the grey zone from 28 to 11% and showed a sensitivity of 88% and a specificity of 83%. Conclusions A stepwise PEEP elevation recruitment manoeuvre of up to 30 cm H20 may predict fluid responsiveness as well as 45 cm H20. The combination of ΔPP and ΔCVP optimizes the categorization of responder and non-responder patients. Supplementary Information The online version contains supplementary material available at 10.1186/s12871-022-01815-1.
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Affiliation(s)
- Olivier Desebbe
- Department of Anesthesiology and Intensive Care, Ramsay Sante Sauvegarde Clinic, Lyon, France.
| | - Whitney Mondor
- Department of Biosciences, Claude Bernard University, Lyon, France
| | - Laurent Gergele
- Department of Anesthesiology and Intensive Care, Ramsay Sante HPL Clinic, Saint-Etienne, France
| | - Darren Raphael
- Department of Anesthesiology & Perioperative Care, University of California, Irvine, USA
| | - Sylvain Vallier
- Department of Anesthesiology and Intensive Care, Elsan Alpes-Belledonne Clinic, Grenoble, France
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95
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Gandon C, Gricourt Y, Thomas M, Garnaud B, Elhaj M, Boisson C, Boudemaghe T, Jaber S, Claret PG, Cuvillon P. How traditional and digital analytics interventions can enhance lung-protective ventilation strategies during general anaesthesia: A two-year quality improvement project analysis. Anaesth Crit Care Pain Med 2022; 41:101143. [PMID: 35988703 DOI: 10.1016/j.accpm.2022.101143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 04/20/2022] [Accepted: 07/03/2022] [Indexed: 11/27/2022]
Abstract
PURPOSE This quality improvement project evaluated interventions implemented to enhance individual adherence to a lung-protective ventilation strategy and its triad: low tidal volume, PEEP ≥ 5, recruitment manoeuvres. METHODS For two years, nine anaesthesia workstations were connected to an automated cloud- based analytics software tool, which automatically recorded ventilation parameters as soon as a new patient case was opened. Four quality improvement periods were determined over the first year: baseline, intervention, no intervention, intervention + digital. In the second year, the digital strategy was continued for nine months, followed by a final "overtime" period. Baseline and no intervention periods included no training. The intervention period included both conventional and educational programs. The digital period included pop-up messages, which automatically appeared on the screen of the anaesthesia data management system when patients were intubated. The primary endpoint was provider adherence to the recommended triad. RESULTS From October 2018 to December 2020, 12,883 procedures were performed. Data were available for 8,968 procedures: baseline (n = 2361), intervention (n = 2423), no intervention (n = 1064), intervention + digital (n = 1862), overtime (n = 1258). Age, Predicted Body Weight, ASA score, type of surgery and airway management were similar between periods. At baseline, 75.2 % of procedures reported low tidal volume but only 6.9% involved the complete triad. At over time, Triad was 22% (p < 0.001). Over study period, each parameter of the Triad (RM, Vt and Peep) increased (p < 0.001 vs. baseline), driving pressure decreased although EtCO2 and plateau pressure had not changed. CONCLUSION Training with the help of digital apps improved LPV adherence over time.
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Affiliation(s)
- Cléa Gandon
- Department of Anaesthesiology and Pain Management, Centre Hospitalo-Universitaire (CHU) Carémeau, Place du Professeur Debré, Nîmes, France; Montpellier University 1, Montpellier, France
| | - Yann Gricourt
- Department of Anaesthesiology and Pain Management, Centre Hospitalo-Universitaire (CHU) Carémeau, Place du Professeur Debré, Nîmes, France; Montpellier University 1, Montpellier, France
| | - Maxime Thomas
- Department of Anaesthesiology and Pain Management, Centre Hospitalo-Universitaire (CHU) Carémeau, Place du Professeur Debré, Nîmes, France; Montpellier University 1, Montpellier, France
| | - Benjamin Garnaud
- Department of Anaesthesiology and Pain Management, Centre Hospitalo-Universitaire (CHU) Carémeau, Place du Professeur Debré, Nîmes, France; Montpellier University 1, Montpellier, France
| | - Mona Elhaj
- Department of Anaesthesiology and Pain Management, Centre Hospitalo-Universitaire (CHU) Carémeau, Place du Professeur Debré, Nîmes, France; Montpellier University 1, Montpellier, France
| | - Christophe Boisson
- Department of Anaesthesiology and Pain Management, Centre Hospitalo-Universitaire (CHU) Carémeau, Place du Professeur Debré, Nîmes, France; Montpellier University 1, Montpellier, France
| | - Thierry Boudemaghe
- Montpellier University 1, Montpellier, France; Department of Medical Information, Centre Hospitalo-Universitaire (CHU) Carémeau, Place du Professeur Debré, Nîmes, France
| | - Samir Jaber
- Department of Anaesthesiology and Intensive Care (DAR B), Saint Eloi University Hospital, Montpellier University, Research Unit: PhyMedExp, INSERM, CNRS, 80 Avenue Augustin Fliche, 34295 Montpellier, France
| | - Pierre Géraud Claret
- Montpellier University 1, Montpellier, France; Emergency Department, Centre Hospitalo-Universitaire (CHU) Carémeau, Place du Professeur Debré, Nîmes, France
| | - Philippe Cuvillon
- Department of Anaesthesiology and Pain Management, Centre Hospitalo-Universitaire (CHU) Carémeau, Place du Professeur Debré, Nîmes, France; Montpellier University 1, Montpellier, France.
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96
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Euliano NR, Stephan P, Michalopoulos K, Gentile MA, Layon AJ, Gabrielli A. Use of a Portable Electronic Interface Improves Clinical Handoffs and Adherence to Lung Protective Ventilation. MEDICAL DEVICES-EVIDENCE AND RESEARCH 2022; 15:263-275. [PMID: 35958116 PMCID: PMC9362905 DOI: 10.2147/mder.s372333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 07/05/2022] [Indexed: 11/23/2022] Open
Abstract
Background Methods Results Conclusion
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Affiliation(s)
- Neil R Euliano
- Convergent Engineering, Inc, Gainesville, FL, USA
- Correspondence: Neil R Euliano, Convergent Engineering, Inc, 100 SW 75th Street, STE 106, Gainesville, FL, 32607, USA, Tel +1 352 378 4899 x 107, Fax +1 352 378 9202, Email
| | - Paul Stephan
- Convergent Engineering, Inc, Gainesville, FL, USA
| | | | | | - A Joseph Layon
- Department of Anesthesiology, College of Medicine, University of Central Florida, Orlando, FL, USA
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97
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Suleiman A, Costa E, Santer P, Tartler TM, Wachtendorf LJ, Teja B, Chen G, Baedorf-Kassis E, Nagrebetsky A, Vidal Melo MF, Eikermann M, Schaefer MS. Association between intraoperative tidal volume and postoperative respiratory complications is dependent on respiratory elastance: a retrospective, multicentre cohort study. Br J Anaesth 2022; 129:263-272. [PMID: 35690489 PMCID: PMC9837741 DOI: 10.1016/j.bja.2022.05.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 02/18/2022] [Accepted: 05/05/2022] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The impact of high vs low intraoperative tidal volumes on postoperative respiratory complications remains unclear. We hypothesised that the effect of intraoperative tidal volume on postoperative respiratory complications is dependent on respiratory system elastance. METHODS We retrospectively recorded tidal volume (Vt; ml kg-1 ideal body weight [IBW]) in patients undergoing elective, non-cardiothoracic surgery from hospital registry data. The primary outcome was respiratory failure (requiring reintubation within 7 days of surgery, desaturation after extubation, or both). The primary exposure was defined as the interaction between Vt and standardised respiratory system elastance (driving pressure divided by Vt; cm H2O/[ml kg-1]). Multivariable logistic regression models, with and without interaction terms (which categorised Vt as low [Vt ≤8 ml kg-1] or high [Vt >8 ml kg-1]), were adjusted for potential confounders. Additional analyses included path mediation analysis and fractional polynomial modelling. RESULTS Overall, 10 821/197 474 (5.5%) patients sustained postoperative respiratory complications. Higher Vt was associated with greater risk of postoperative respiratory complications (adjusted odds ratio=1.42 per ml kg-1; 95% confidence interval [CI], 1.35-1.50]; P<0.001). This association was modified by respiratory system elastance (P<0.001); in patients with low compliance (<42.4 ml cm H2O-1), higher Vt was associated with greater risk of postoperative respiratory complications (adjusted risk difference=0.3% [95% CI, 0.0-0.5] at 41.2 ml cm H2O-1 compliance, compared with 5.8% [95% CI, 3.8-7.8] at 14 ml cm H2O-1 compliance). This association was absent when compliance exceeded 41.2 ml cm H2O-1. Adverse effects associated with high Vt were entirely mediated by driving pressures (P<0.001). CONCLUSIONS The association of harm with higher tidal volumes during intraoperative mechanical ventilation is modified by respiratory system elastance. These data suggest that respiratory elastance should inform the design of perioperative trials testing intraoperative ventilatory strategies.
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Affiliation(s)
- Aiman Suleiman
- Department of Anaesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Centre, Boston, MA, USA,Center for Anaesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Centre, Boston, MA, USA,Department of Anaesthesia and Intensive Care, Faculty of Medicine, University of Jordan, Amman, Jordan
| | - Eduardo Costa
- Laboratório de Pneumologia LIM-09, Disciplina de Pneumologia, Heart Institute (Incor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Sao Paulo, Brazil,Research and Education Institute, Hospital Sírio-Libanes, Sao Paulo, Brazil
| | - Peter Santer
- Department of Anaesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Centre, Boston, MA, USA
| | - Tim M. Tartler
- Department of Anaesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Centre, Boston, MA, USA,Center for Anaesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Centre, Boston, MA, USA
| | - Luca J. Wachtendorf
- Department of Anaesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Centre, Boston, MA, USA,Center for Anaesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Centre, Boston, MA, USA,Department of Anaesthesiology, Montefiore Medical Centre and Albert Einstein College of Medicine, Bronx, NY, USA
| | - Bijan Teja
- Department of Anaesthesiology and Pain Medicine and Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON, Canada
| | - Guanqing Chen
- Center for Anaesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Centre, Boston, MA, USA
| | - Elias Baedorf-Kassis
- Department of Pulmonary, Critical Care & Sleep Medicine, Beth Israel Deaconess Medical Centre, Boston, MA, USA
| | - Alexander Nagrebetsky
- Department of Anaesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Marcos F. Vidal Melo
- Department of Anesthesiology, Columbia University Irving Medical Center, New York, NY, USA,Corresponding authors.
| | - Matthias Eikermann
- Department of Anaesthesiology, Montefiore Medical Centre and Albert Einstein College of Medicine, Bronx, NY, USA,Klinik für Anästhesiologie und Intensivmedizin, Universität Duisburg-Essen, Essen, Germany
| | - Maximilian S. Schaefer
- Department of Anaesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Centre, Boston, MA, USA,Center for Anaesthesia Research Excellence (CARE), Beth Israel Deaconess Medical Centre, Boston, MA, USA,Department of Anaesthesiology, Düsseldorf University Hospital, Dusseldorf, Germany,Corresponding authors.
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98
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Akkermans A, van Waes JA, Kheterpal S, Pasma W, Saager L, Thompson A, van Klei WA. Outlying End-Tidal Carbon Dioxide During General Anesthesia Is Associated With Postoperative Pulmonary Complications: A Multicenter Retrospective Observational Study From US Hospitals Between 2010 and 2017. Anesth Analg 2022; 135:341-353. [PMID: 35839498 DOI: 10.1213/ane.0000000000006062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Postoperative pulmonary complications (PPCs) occur in up to 33% of patients who undergo noncardiothoracic surgery. Emerging evidence suggests that permissive hypercapnia may reduce the risk of lung injury. We hypothesized that higher intraoperative end-tidal carbon dioxide (Etco2) concentrations would be associated with a decreased risk of PPCs. METHODS This retrospective, observational, multicenter study included patients undergoing general anesthesia for noncardiothoracic procedures (January 2010-December 2017). The primary outcome was PPC within 30 postoperative days. Secondary outcomes were PPC within 1 week, postoperative length of stay, and inhospital 30-day mortality. The association between these outcomes, median Etco2, and 4 time-weighted average area-under-the-curve (TWA-AUC) thresholds (<28, <35, <45, and >45 mm Hg) was explored using a multivariable mixed-effect model and by plotting associated risks. RESULTS Among 143,769 cases across 11 hospitals, 10,276 (7.1%) experienced a PPC. When compared to a baseline median Etco2 of 35 to 40 mm Hg, a median Etco2 >40 mm Hg was associated with an increase in PPCs within 30 days (median Etco2, 40-45 mm Hg; adjusted OR, 1.16 [99% confidence interval {CI}, 1.00-1.33]; P value = .008 and median Etco2, >45 mm Hg; OR, 1.64 [99% CI, 1.33-2.02]; P value < .001). The occurrence of any Etco2 value <28 mm Hg (ie, a positive TWA-AUC < 28 mm Hg) was associated with PPCs (OR, 1.40 [95% CI, 1.33-1.49]; P value < .001), mortality, and length of stay. Any Etco2 value >45 mm Hg (ie, a positive TWA-AUC >45 mm Hg) was also associated with PPCs (OR, 1.24 [95% CI, 1.17-1.31]; P < .001). The Etco2 range with the lowest incidence of PPCs was 35 to 38 mm Hg. CONCLUSIONS Both a very low (<28 mm Hg) and a high Etco2 (>45 mm Hg) were associated with PPCs within 30 days. The lowest PPC incidence was found in patients with an Etco2 of 35 to 38 mm Hg. Prospective studies are needed to clarify the relationship between postoperative PPCs and intraoperative Etco2.
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Affiliation(s)
- Annemarie Akkermans
- From the Department of Anesthesiology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Judith A van Waes
- From the Department of Anesthesiology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Sachin Kheterpal
- Department of Anesthesiology, University of Michigan Health System, Ann Arbor, Michigan
| | - Wietze Pasma
- From the Department of Anesthesiology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Leif Saager
- Department of Anesthesiology, University of Michigan Health System, Ann Arbor, Michigan.,Department of Anesthesiology, University Medical Center Goettingen, Goettingen, Germany
| | - Aleda Thompson
- Department of Anesthesiology, University of Michigan Health System, Ann Arbor, Michigan
| | - Wilton A van Klei
- From the Department of Anesthesiology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
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99
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Prophylactic Postoperative Noninvasive Ventilation in Adults Undergoing Upper Abdominal Surgery: A Systematic Review and Meta-Analysis. Crit Care Med 2022; 50:1522-1532. [PMID: 35881511 DOI: 10.1097/ccm.0000000000005628] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Postoperative pulmonary complications (PPCs) are a leading cause of morbidity and mortality following upper abdominal surgery. Applying either noninvasive ventilation (NIV) or continuous positive airway pressure (CPAP) in the early postoperative period is suggested to prevent PPC. We aimed to assess whether postoperative NIV or CPAP or both prevent PPCs compared with standard care in adults undergoing upper abdominal surgery, including in those identified at higher PPC risk. Additionally, the different interventions used were evaluated to assess whether there is a superior approach. DATA SOURCES We searched PubMed, Embase' CINAHL, CENTRAL, and Scopus from inception to May 17, 2021. STUDY SELECTION We performed a systematic search of the literature for randomized controlled trials evaluating prophylactic NIV and/or CPAP in the postoperative period. DATA EXTRACTION Two authors independently performed study selection and data extraction. Individual study risk of bias was assessed using the PEDro scale, and certainty in outcomes was assessed using the Grading of Recommendations Assessment, Development, and Evaluation framework. DATA SYNTHESIS We included 17 studies enrolling 6,108 patients. No significant benefit was demonstrated for postoperative NIV/CPAP to reduce PPC (risk ratio [RR], 0.89; 95% CI, 0.78-1.01; very low certainty), including in adults identified at higher PPC risk (RR, 0.91; 95% CI, 0.77-1.07; very low certainty). No intervention approach was identified as superior, and no significant benefit was demonstrated when comparing: 1) CPAP (RR, 0.90; 95% CI, 0.79-1.04; very low certainty), 2) NIV (RR, 0.68; 95% CI, 0.41-1.13; very low certainty), 3) continuous NIV/CPAP (RR, 0.90; 95% CI, 0.77-1.05; very low certainty), or 4) intermittent NIV/CPAP (RR, 0.66; 95% CI, 0.39-1.10; very low certainty) to standard care. CONCLUSIONS These findings suggest routine provision of either prophylactic NIV or CPAP following upper abdominal surgery may not be effective to reduce PPCs' including in those identified at higher risk.
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100
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Methods for Determination of Individual PEEP for Intraoperative Mechanical Ventilation Using a Decremental PEEP Trial. J Clin Med 2022; 11:jcm11133707. [PMID: 35806990 PMCID: PMC9267263 DOI: 10.3390/jcm11133707] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 06/22/2022] [Accepted: 06/24/2022] [Indexed: 02/04/2023] Open
Abstract
(1) Background: Individual PEEP settings (PEEPIND) may improve intraoperative oxygenation and optimize lung mechanics. However, there is uncertainty concerning the optimal procedure to determine PEEPIND. In this secondary analysis of a randomized controlled clinical trial, we compared different methods for PEEPIND determination. (2) Methods: Offline analysis of decremental PEEP trials was performed and PEEPIND was retrospectively determined according to five different methods (EIT-based: RVDI method, Global Inhomogeneity Index [GI], distribution of tidal ventilation [EIT VT]; global dynamic and quasi-static compliance). (3) Results: In the 45 obese and non-obese patients included, PEEPIND using the RVDI method (PEEPRVD) was 16.3 ± 4.5 cm H2O. Determination of PEEPIND using the GI and EIT VT resulted in a mean difference of −2.4 cm H2O (95%CI: −1.2;−3.6 cm H2O, p = 0.01) and −2.3 cm H2O (95% CI: −0.9;3.7 cm H2O, p = 0.01) to PEEPRVD, respectively. PEEPIND selection according to quasi-static compliance showed the highest agreement with PEEPRVD (p = 0.67), with deviations > 4 cm H2O in 3/42 patients. PEEPRVD and PEEPIND according to dynamic compliance also showed a high level of agreement, with deviations > 4 cm H2O in 5/42 patients (p = 0.57). (4) Conclusions: High agreement of PEEPIND determined by the RVDI method and compliance-based methods suggests that, for routine clinical practice, PEEP selection based on best quasi-static or dynamic compliance is favorable.
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