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Chen T, Asher S, Apruzzese P, Owusu-Dapaah H, Gonzalez G, Maslow A. Hypercapnia during transcatheter aortic valve replacement under monitored anaesthesia care: a retrospective cohort study. Open Heart 2024; 11:e002801. [PMID: 39214537 PMCID: PMC11367353 DOI: 10.1136/openhrt-2024-002801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Accepted: 08/19/2024] [Indexed: 09/04/2024] Open
Abstract
BACKGROUND Acute intraoperative hypercapnia and respiratory acidosis, which can occur during monitored anaesthesia care (MAC), pose significant cardiopulmonary risks for patients with aortic stenosis undergoing transcatheter aortic valve replacement (TAVR). The goal of the present study is to assess the incidence, risk factors and impact of intraoperative hypercapnia during MAC for patients undergoing transfemoral TAVR. METHODS Data was collected retrospectively from the electronic medical record of 201 consecutive patients with available intraoperative arterial blood gas (ABG) data who underwent percutaneous transfemoral TAVR with MAC using propofol and dexmedetomidine. ABGs (pH, arterial partial pressure of carbon dioxide (PaCO2) and arterial partial pressure of oxygen) were performed at the start of each case (baseline), immediately prior to valve deployment (ValveDepl), and on arrival to the postanaesthesia care unit. Data was analysed using Fisher's exact test, unpaired Student's t-test, Wilcoxon rank sum or univariate linear regression as appropriate based on PaCO2 and pH during ValveDepl (PaCO2-ValveDepl, pH-ValveDepl) and change in PaCO2 and pH from baseline to ValveDepl (PaCO2-%increase, pH-%decrease) to determine their association with preoperative demographic data, intraoperative anaesthetic and vasoactive medications and postoperative outcomes. RESULTS PaCO2 increased by a mean of 28.4% and was higher than baseline in 91% of patients. Younger age, male sex, increased weight and increased propofol dose contributed to higher PaCO2-ValveDepl and greater PaCO2-%increase. Patients with PaCO2-ValveDepl>60 mm Hg, pH≤7.2 and greater pH-%decrease were more likely to receive vasoactive medications, but perioperative PaCO2 and pH were not associated with adverse postoperative outcomes. CONCLUSIONS Transient significant hypercapnia commonly occurs during transfemoral TAVR with deep sedation using propofol and dexmedetomidine. Although the incidence of postoperative outcomes does not appear to be affected by hypercapnia, the need for vasopressors and inotropes is increased. If deep sedation is required for TAVR, hypercapnia and the need for haemodynamic and ventilatory support should be anticipated.
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Affiliation(s)
- Tzonghuei Chen
- Department of Anesthesiology, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Shyamal Asher
- Department of Anesthesiology, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Patricia Apruzzese
- Department of Anesthesiology, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Harry Owusu-Dapaah
- Department of Anesthesiology, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Gustavo Gonzalez
- Department of Anesthesiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Andrew Maslow
- Department of Anesthesiology, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
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2
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Mancilla-Galindo J, Ortiz-Gomez JE, Pérez-Nieto OR, De Jong A, Escarramán-Martínez D, Kammar-García A, Ramírez Mata LC, Díaz AM, Guerrero-Gutiérrez MA. Preoperative Atelectasis in Patients with Obesity Undergoing Bariatric Surgery: A Cross-Sectional Study. Anesth Analg 2024:00000539-990000000-00918. [PMID: 39178161 DOI: 10.1213/ane.0000000000007166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2024]
Abstract
BACKGROUND Pulmonary atelectasis is present even before surgery in patients with obesity. We aimed to estimate the prevalence and extension of preoperative atelectasis in patients with obesity undergoing bariatric surgery and to determine if variation in preoperative Spo2 values in the seated position at room air is explained by the extent of atelectasis coverage in the supine position. METHODS This was a cross-sectional study in a single center specialized in laparoscopic bariatric surgery. Preoperative chest computed tomographies were reassessed by a senior radiologist to quantify the extent of atelectasis coverage as a percentage of total lung volume. Patients were classified as having atelectasis when the affection was ≥2.5%, to estimate the prevalence of atelectasis. Crude and adjusted prevalence ratios (aPRs) and odds ratios (aORs) were obtained to assess the relative prevalence of atelectasis and percentage coverage, respectively, with increasing obesity category. Inverse probability weighting was used to assess the total, direct (not mediated), and indirect (mediated through atelectasis) effects of body mass index (BMI) on preoperative Spo2, and to quantify the magnitude of mediation (proportion mediated). E-values were calculated, to represent the minimum magnitude of association that an unmeasured confounder with the same directionality of the effect should have to drive the observed point estimates or lower confidence intervals (CIs) to 1, respectively. RESULTS In 236 patients with a median BMI of 40.3 kg/m2 (interquartile range [IQR], 34.6-46.0, range: 30.0-77.3), the overall prevalence of atelectasis was 32.6% (95% CI, 27.0-38.9) and by BMI category: 30 to 35 kg/m2, 12.7% (95% CI, 6.1-24.4); 35 to 40 kg/m2, 28.3% (95% CI, 17.2-42.6); 40 to 45 kg/m2, 12.3% (95% CI, 5.5-24.3); 45 to 50 kg/m2, 48.4% (95% CI, 30.6-66.6); and ≥50 units, 100% (95% CI, 86.7-100). Compared to the 30 to 35 kg/m2 group, only the categories with BMI ≥45 kg/m2 had significantly higher relative prevalence of atelectasis-45 to 50 kg/m2, aPR = 3.52 (95% CI, 1.63-7.61, E-value lower bound: 2.64) and ≥50 kg/m2, aPR = 8.0 (95% CI, 4.22-15.2, E-value lower bound: 7.91)-and higher odds of greater atelectasis percentage coverage: 45-50 kg/m2, aOR = 7.5 (95% CI, 2.7-20.9) and ≥50 kg/m2, aOR = 91.5 (95% CI, 30.0-279.3). Atelectasis percent alone explained 70.2% of the variation in preoperative Spo2. The proportion of the effect of BMI on preoperative Spo2 values <96% mediated through atelectasis was 81.5% (95% CI, 56.0-100). CONCLUSIONS The prevalence and extension of atelectasis increased with higher BMI, being significantly higher at BMI ≥45 kg/m2. Preoperative atelectasis mediated the effect of BMI on Spo2 at room air in the seated position.
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Affiliation(s)
| | | | | | - Audrey De Jong
- Department of Anesthesia and Intensive Care Unit, Regional University Hospital of Montpellier, St-Eloi Hospital, University of Montpellier, Montpellier, France
| | | | - Ashuin Kammar-García
- Dirección de Investigación, Instituto Nacional de Geriatría, Mexico City, Mexico
| | | | - Adriana Mendez Díaz
- Department of Bariatric Anesthesia, Baja Hospital and Medical Center, Tijuana, Mexico
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3
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Lagier D, Zeng C, Kaczka DW, Zhu M, Grogg K, Gerard SE, Reinhardt JM, Ribeiro GCM, Rashid A, Winkler T, Vidal Melo MF. Mechanical ventilation guided by driving pressure optimizes local pulmonary biomechanics in an ovine model. Sci Transl Med 2024; 16:eado1097. [PMID: 39141699 DOI: 10.1126/scitranslmed.ado1097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 05/13/2024] [Accepted: 07/24/2024] [Indexed: 08/16/2024]
Abstract
Mechanical ventilation exposes the lung to injurious stresses and strains that can negatively affect clinical outcomes in acute respiratory distress syndrome or cause pulmonary complications after general anesthesia. Excess global lung strain, estimated as increased respiratory system driving pressure, is associated with mortality related to mechanical ventilation. The role of small-dimension biomechanical factors underlying this association and their spatial heterogeneity within the lung are currently unknown. Using four-dimensional computed tomography with a voxel resolution of 2.4 cubic millimeters and a multiresolution convolutional neural network for whole-lung image segmentation, we dynamically measured voxel-wise lung inflation and tidal parenchymal strains. Healthy or injured ovine lungs were evaluated as the mechanical ventilation positive end-expiratory pressure (PEEP) was titrated from 20 to 2 centimeters of water. The PEEP of minimal driving pressure (PEEPDP) optimized local lung biomechanics. We observed a greater rate of change in nonaerated lung mass with respect to PEEP below PEEPDP compared with PEEP values above this threshold. PEEPDP similarly characterized a breaking point in the relationships between PEEP and SD of local tidal parenchymal strain, the 95th percentile of local strains, and the magnitude of tidal overdistension. These findings advance the understanding of lung collapse, tidal overdistension, and strain heterogeneity as local triggers of ventilator-induced lung injury in large-animal lungs similar to those of humans and could inform the clinical management of mechanical ventilation to improve local lung biomechanics.
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Affiliation(s)
- David Lagier
- Experimental Interventional Imaging Laboratory (LIIE), European Center for Research in Medical Imaging (CERIMED), Aix Marseille University, Marseille 13005, France
- Department of Anesthesia and Critical Care, University Hospital La Timone, APHM, Marseille 13005, France
| | - Congli Zeng
- Department of Anesthesiology, Vagelos College of Physicians and Surgeons, Columbia University, New York City, NY 10032, USA
| | - David W Kaczka
- Departments of Anesthesia and Radiology, University of Iowa, Iowa City, IA 52242, USA
- Roy J. Carver Department of Biomedical Engineering, University of Iowa, Iowa City, IA 52242, USA
| | - Min Zhu
- Guizhou University South Campus, Guiyang City 550025, China
| | - Kira Grogg
- Yale PET Center, Department of Radiology and Biomedical Imaging, Yale University, New Haven, CT 06520, USA
| | - Sarah E Gerard
- Roy J. Carver Department of Biomedical Engineering, University of Iowa, Iowa City, IA 52242, USA
| | - Joseph M Reinhardt
- Roy J. Carver Department of Biomedical Engineering, University of Iowa, Iowa City, IA 52242, USA
| | - Gabriel C Motta Ribeiro
- Biomedical Engineering Program, Alberto Luiz Coimbra Institute for Graduate Studies and Research in Engineering, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-594, Brazil
| | - Azman Rashid
- Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Tilo Winkler
- Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Marcos F Vidal Melo
- Department of Anesthesiology, Vagelos College of Physicians and Surgeons, Columbia University, New York City, NY 10032, USA
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Edinger F, Zajonz T, Mayer N, Schmidt G, Schneck E, Sander M, Koch C. A Novel Model of Venovenous Extracorporeal Membrane Oxygenation in Rats with Femoral Cannulation and Insights into Hemodynamic Changes. Biomedicines 2024; 12:1819. [PMID: 39200283 PMCID: PMC11351971 DOI: 10.3390/biomedicines12081819] [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: 07/16/2024] [Revised: 07/29/2024] [Accepted: 08/08/2024] [Indexed: 09/02/2024] Open
Abstract
The application of venovenous (VV) extracorporeal membrane oxygenation (ECMO) has gained wide acceptance for the treatment of acute severe respiratory failure. Since no rat model of VV ECMO therapy with femoral drainage has yet been described, although this cannulation strategy is commonly used in humans, this study aimed to establish such a model. Twenty male Lewis rats were randomly assigned to receive a sham procedure or VV ECMO therapy. After the inhalative induction of anesthesia, animals were intubated and the vascular accesses were placed surgically. While venous drainage was achieved through a modified multi-orifice 18 G cannula that was placed in the inferior vena cava through the femoral vein over a guide wire with an ultra-flexible tip, the venous return was realized via a shortened 20 G cannula into the jugular vein. Hemodynamic data were obtained from a tail artery and left ventricular pressure-volume catheter. Repetitive blood gas analyses were carried out, and systemic inflammation was measured using an enzyme-linked immunosorbent assay. While animals in the ECMO group showed adequate oxygenation and decarboxylation, there was no evidence of recirculation. VV ECMO therapy increased stroke volume (SV), cardiac output (CO), and left ventricular end-diastolic volume (LVEDV). ECMO-induced inflammation was reflected in increased levels of tumor necrosis factor alpha. However, no differences in interleukins 6 and 10 were seen. This study describes a frequently used cannulation strategy in humans for a rat model of VV ECMO. Despite successful oxygenation and decarboxylation, the oxygenated blood may reduce pulmonary vascular resistance and lead to an increased LVEDV, which is associated with increased SV and CO. This model allows us to answer research questions about topics such as intestinal microcirculation in further studies.
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Affiliation(s)
| | - Thomas Zajonz
- Department of Anesthesiology, Operative Intensive Care Medicine and Pain Therapy, University Hospital, Justus-Liebig-University, 35392 Giessen, Germany
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Abbott M, Pereira SM, Sanders N, Girard M, Sankar A, Sklar MC. Weaning from mechanical ventilation in the operating room: a systematic review. Br J Anaesth 2024; 133:424-436. [PMID: 38816331 PMCID: PMC11282496 DOI: 10.1016/j.bja.2024.03.043] [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: 11/09/2023] [Revised: 02/27/2024] [Accepted: 03/22/2024] [Indexed: 06/01/2024] Open
Abstract
BACKGROUND Postoperative pulmonary complications (PPCs) are associated with postoperative mortality and prolonged hospital stay. Although intraoperative mechanical ventilation (MV) is a risk factor for PPCs, strategies addressing weaning from MV are understudied. In this systematic review, we evaluated weaning strategies and their effects on postoperative pulmonary outcomes. METHODS Our protocol was registered on PROSPERO (CRD42022379145). Eligible studies included randomised controlled trials and observational studies of adults weaned from MV in the operating room. Primary outcomes included atelectasis and oxygenation; secondary outcomes included lung volume changes and PPCs. Risk of bias was assessed using the Cochrane Risk of Bias (RoB2) tool, and quality of evidence with the GRADE framework. RESULTS Screening identified 14 randomised controlled trials including 1719 patients; seven studies were limited to the weaning phase and seven included interventions not restricted to the weaning phase. Strategies combining pressure support ventilation (PSV) with positive end-expiratory pressure (PEEP) and low fraction of inspired oxygen (FiO2) improved atelectasis, oxygenation, and lung volumes. Low FiO2 improved atelectasis and oxygenation but might not improve lung volumes. A fixed-PEEP strategy led to no improvement in oxygenation or atelectasis; however, individualised PEEP with low FiO2 improved oxygenation and might be associated with reduced PPCs. Half of included studies are of moderate or high risk of bias; the overall quality of evidence is low. CONCLUSIONS There is limited research evaluating weaning from intraoperative MV. Based on low-quality evidence, PSV, individualised PEEP, and low FiO2 may be associated with reduced postoperative pulmonary outcomes. SYSTEMATIC REVIEW PROTOCOL PROSPERO (CRD42022379145).
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Affiliation(s)
- Megan Abbott
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada; Keenan Research Centre for Biomedical Science, St Michael's Hospital, Toronto, ON, Canada
| | - Sergio M Pereira
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada
| | - Noah Sanders
- Keenan Research Centre for Biomedical Science, St Michael's Hospital, Toronto, ON, Canada
| | - Martin Girard
- Department of Anesthesiology, Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada; Division of Critical Care, Department of Medicine, Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada; Department of Anesthesiology, Centre Hospitalier de l'Université de Montréal Research Center, Montreal, QC, Canada
| | - Ashwin Sankar
- Keenan Research Centre for Biomedical Science, St Michael's Hospital, Toronto, ON, Canada; Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada
| | - Michael C Sklar
- Keenan Research Centre for Biomedical Science, St Michael's Hospital, Toronto, ON, Canada; Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, ON, Canada; Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON, Canada.
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6
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Liu B, Wang Y, Li L, Xiong W, Feng Y, Liu Y, Jin X. The effects of laryngeal mask versus endotracheal tube on atelectasis after general anesthesia induction assessed by lung ultrasound: A randomized controlled trial. J Clin Anesth 2024; 98:111564. [PMID: 39089119 DOI: 10.1016/j.jclinane.2024.111564] [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: 10/09/2023] [Revised: 03/05/2024] [Accepted: 07/21/2024] [Indexed: 08/03/2024]
Abstract
STUDY OBJECTIVE This study aims to evaluate the impact of Supreme™ laryngeal masks versus endotracheal tubes on atelectasis during general anesthesia using lung ultrasound (LUS), and provide evidence for respiratory management. DESIGN A single-center, double-blind, randomized controlled trial was conducted. SETTING The study was conducted in both the operating room and the post-anesthesia care unit, with follow-up assessments performed in the ward. PATIENTS Enrollment included 180 cases undergoing non-laparoscopic surgeries in gynecology, urology, and orthopedic limb surgeries. INTERVENTIONS Patients were randomly assigned 1:1 to the endotracheal intubation or laryngeal mask group. MEASUREMENTS LUS scores were recorded across 12 lung regions at baseline, 15 min after airway establishment, at the end of surgery, and 30 min following airway removal. Outcome measures encompassed the oxygenation index, dynamic lung compliance, incidence of postoperative pulmonary complications, throat pain, and other postoperative complications assessed at 24 and 48 h postoperatively. The primary outcome focused on the LUS score in all 12 lung regions at 15 min after airway establishment. MAIN RESULTS Intention-to-treat analysis of 177 subjects revealed endotracheal intubation led to significantly higher LUS scores at 15 min {P < 0.001, mean difference 4.15 ± 0.60, 95% CI [2.97, 5.33]}, end of surgery (P < 0.001, mean difference 3.37 ± 0.68, 95% CI [2.02, 4.72]), and 30 min post-removal (P < 0.001, mean difference 2.63 ± 0.48, 95% CI [1.68, 3.58]). No major complications occurred in the two groups. CONCLUSIONS Compared to endotracheal intubation, laryngeal masks effectively reduce atelectasis formation and progression in gynecological, urological non-laparoscopic, and orthopedic limb surgeries. However, caution is warranted when generalizing these findings to surgeries with a higher risk of laryngeal mask leakage or obese patients. Additionally, the efficacy of laryngeal masks in reducing postoperative atelectasis remains uncertain when comprehensive monitoring of muscle relaxation and reversal therapy is employed.
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Affiliation(s)
- Bin Liu
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Yaxin Wang
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Ling Li
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Wei Xiong
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Yifan Feng
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Yan Liu
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Xu Jin
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China; Department of Anesthesiology, Cancer Hospital Chinese Academy of Medical Sciences, Beijing 100191, China.
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7
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Żyłka M, Górski G, Żyłka W, Gala-Błądzińska A. Numerical analysis of blood flow in the abdominal aorta under simulated weightlessness and earth conditions. Sci Rep 2024; 14:15978. [PMID: 38987416 PMCID: PMC11237043 DOI: 10.1038/s41598-024-66961-7] [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: 01/11/2024] [Accepted: 07/05/2024] [Indexed: 07/12/2024] Open
Abstract
Blood flow through the abdominal aorta and iliac arteries is a crucial area of research in hemodynamics and cardiovascular diseases. To get in to the problem, this study presents detailed analyses of blood flow through the abdominal aorta, together with left and right iliac arteries, under Earth gravity and weightless conditions, both at the rest stage, and during physical activity. The analysis were conducted using ANSYS Fluent software. The results indicate, that there is significantly less variation in blood flow velocity under weightless conditions, compared to measurement taken under Earth Gravity conditions. Study presents, that the maximum and minimum blood flow velocities decrease and increase, respectively, under weightless conditions. Our model for the left iliac artery revealed higher blood flow velocities during the peak of the systolic phase (systole) and lower velocities during the early diastolic phase (diastole). Furthermore, we analyzed the shear stress of the vessel wall and the mean shear stress over time. Additionally, the distribution of oscillatory shear rate, commonly used in hemodynamic analyses, was examined to assess the effects of blood flow on the blood vessels. Countermeasures to mitigate the negative effects of weightlessness on astronauts health are discussed, including exercises performed on the equipment aboard the space station. These exercises aim to maintain optimal blood flow, prevent the formation of atherosclerotic plaques, and reduce the risk of cardiovascular complications.
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Affiliation(s)
- Marta Żyłka
- The Faculty of Mechanical Engineering and Aeronautics, Department of Aerospace Engineering, Rzeszow University of Technology, av. Powstańców Warszawy 8, 35-959, Rzeszów, Poland.
| | - Grzegorz Górski
- Institute of Physics, College of Natural Sciences, University of Rzeszów, ul. Pigonia 1, 35-310, Rzeszów, Poland
| | - Wojciech Żyłka
- Institute of Materials Engineering, College of Natural Sciences, University of Rzeszów, ul. Pigonia 1, 35-310, Rzeszów, Poland
| | - Agnieszka Gala-Błądzińska
- Institute of Medical Sciences, Medical College of Rzeszow University, Al. mjr. W. Kopisto 2a, 35-959, Rzeszów, Poland
- Internal Medicine, Nephrology and Endocrinology Clinic, St. Queen Jadwiga Clinical District Hospital No. 2 in Rzeszow, ul. Lwowska 60, 35-301, Rzeszów, Poland
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8
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Moscatelli A, Giardina A. The Air-Test, a useful tool for the pediatric anesthesiologist. Minerva Anestesiol 2024; 90:598-600. [PMID: 39021134 DOI: 10.23736/s0375-9393.24.18310-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Affiliation(s)
- Andrea Moscatelli
- Neonatal and Pediatric ICU, Emergency Department, IRCCS Istituto Giannina Gaslini, Genoa, Italy -
| | - Alberto Giardina
- Neonatal and Pediatric ICU, Emergency Department, IRCCS Istituto Giannina Gaslini, Genoa, Italy
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9
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Carrero-Cardenal E, Vollmer-Torrubiano I, Torres-López M, Martín-Barrera G, Casanovas-Mateu G, Tercero-Machin FJ, Paez-Carpio A, Fábregas-Julià N, Valero-Castell R. Continuous positive airway pressure is unsafe for radiofrequency ablation of lung cancer under sedation: a randomised controlled trial. Insights Imaging 2024; 15:153. [PMID: 38900225 PMCID: PMC11190131 DOI: 10.1186/s13244-024-01721-9] [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: 02/14/2024] [Accepted: 05/13/2024] [Indexed: 06/21/2024] Open
Abstract
OBJECTIVE To evaluate the safety of a minimum continuous positive airway pressure of 4 cmH2O (CPAP + 4) during computed tomography (CT)-guided radiofrequency ablation (RFA) for lung malignancies under procedural sedation and analgesia (PSA). METHODS This was a prospective, randomised, single-blind, parallel-group, placebo-controlled trial with an open-label medical device conducted at a single tertiary university hospital in Barcelona, Spain. Forty-six patients over 18 years of age scheduled for CT-guided RFA of a malignant pulmonary tumour under PSA were randomised to receive either CPAP + 4 or a modified mask for placebo CPAP (Sham-CPAP). Exclusion criteria included contraindications for RFA, refusal to participate, inability to understand the procedure or tolerate the CPAP test, lung biopsy just prior to RFA, intercurrent diseases, or previous randomisation for additional pulmonary RFA. Primary outcomes were the percentage of patients reporting at least one serious adverse event (SAE), classification for complications from the Cardiovascular and Interventional Radiological Society of Europe (CIRSE), and Clavien-Dindo classifications for complications, hospital stay, and readmissions. Secondary outcomes included adverse events (AEs), respiratory parameters, airway management, and the local radiological efficacy of pulmonary ablation. RESULTS CPAP + 4 prolonged hospital stay (1.5 ± 1.1 vs. 1.0 ± 0 inpatient nights, p = 0.022) and increased the risk of AE post-RFA (odds ratio (95% CI): 4.250 (1.234 to 14.637), p = 0.021 with more pneumothorax cases (n = 5/22, 22.7% vs. n = 0/24, 0%, p = 0.019). Per-protocol analysis revealed more SAEs and CIRSE grade 3 complications in the CPAP + 4 group (23.5% vs. 0%, p = 0.036). No significant differences were found in the effectiveness of oxygenation, ventilation, or pulmonary ablation. CONCLUSION CPAP is unsafe during CT-guided RFA for lung cancer under PSA even at the lowest pressure setting. TRIAL REGISTRATION ClinicalTrials.Gov, ClinicalTrials.gov ID NCT02117908, Registered 11 April 2014, https://www. CLINICALTRIALS gov/study/NCT02117908 CRITICAL RELEVANCE STATEMENT: This study highlights the hazards of continuous positive airway pressure during radiofrequency ablation of lung cancer, even at minimal pressures, deeming it unsafe under procedural sedation and analgesia in pulmonary interventional procedures. Findings provide crucial insights to prioritise patient safety. KEY POINTS No prior randomised controlled trials on CPAP safety in percutaneous lung thermo-ablation. Standardised outcome measures are crucial for radiology research. CPAP during lung RFA raises hospital stay and the risk of complications. CPAP is unsafe during CT-guided RFA of lung cancer under procedural sedoanalgesia.
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Affiliation(s)
- Enrique Carrero-Cardenal
- Department of Anaesthesiology, Hospital Clínic Barcelona, Universitat de Barcelona, Barcelona, Spain.
- Institute for Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Spain.
| | - Ivan Vollmer-Torrubiano
- Institute for Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Department of Radiology, Hospital Clínic Barcelona, Universitat de Barcelona, Barcelona, Spain
| | - Marta Torres-López
- Centre for Biomedical Research in the Respiratory Diseases Network (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Gloria Martín-Barrera
- Institute for Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Surgical Area Nursing Department, Hospital Clínic Barcelona, Universitat de Barcelona, Barcelona, Spain
| | | | | | - Alfredo Paez-Carpio
- Institute for Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Department of Radiology, Hospital Clínic Barcelona, Universitat de Barcelona, Barcelona, Spain
| | - Neus Fábregas-Julià
- Department of Anaesthesiology, Hospital Clínic Barcelona, Universitat de Barcelona, Barcelona, Spain
- Clinical Quality and Safety Directorate, Surgical Area, Hospital Clínic Barcelona, Universitat de Barcelona, Barcelona, Spain
| | - Ricard Valero-Castell
- Department of Anaesthesiology, Hospital Clínic Barcelona, Universitat de Barcelona, Barcelona, Spain
- Institute for Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Centre for Biomedical Research Network on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
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10
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Taverner J, Lucena CM, Garner JL, Orton CM, Nicholson AG, Desai SR, Wells AU, Shah PL. Low bleeding rates following transbronchial lung cryobiopsy in unclassifiable interstitial lung disease. Respirology 2024; 29:489-496. [PMID: 38355891 DOI: 10.1111/resp.14678] [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: 09/01/2023] [Accepted: 01/30/2024] [Indexed: 02/16/2024]
Abstract
BACKGROUND AND OBJECTIVE Bronchoscopic transbronchial lung cryobiopsy (TBLC) is a guideline-endorsed alternative to surgical lung biopsy for tissue diagnosis in unclassifiable interstitial lung disease (ILD). The reported incidence of post-procedural bleeding has varied widely. We aimed to characterize the incidence, severity and risk factors for clinically significant bleeding following TBLC using an expert-consensus airway bleeding scale, in addition to other complications and diagnostic yield. METHODS A retrospective cohort study of consecutive adult outpatients with unclassifiable ILD who underwent TBLC following multidisciplinary discussion at a single centre in the UK between July 2016 and December 2021. TBLC was performed under general anaesthesia with fluoroscopic guidance and a prophylactic endobronchial balloon. RESULTS One hundred twenty-six patients underwent TBLC (68.3% male; mean age 62.7 years; FVC 86.2%; DLCO 54.5%). Significant bleeding requiring balloon blocker reinflation for >20 min, admission to ICU, packed red blood cell transfusion, bronchial artery embolization, resuscitation or procedural abandonment, occurred in 10 cases (7.9%). Significant bleeding was associated with traction bronchiectasis on HRCT (OR 7.1, CI 1.1-59.1, p = 0.042), a TBLC histological pattern of UIP (OR 4.0, CI 1.1-14, p = 0.046) and the presence of medium-large vessels on histology (OR 37.3, CI 6.5-212, p < 0.001). BMI ≥30 (p = 0.017) and traction bronchiectasis on HRCT (p = 0.025) were significant multivariate predictors of longer total bleeding time (p = 0.017). Pneumothorax occurred in nine cases (7.1%) and the 30-day mortality was 0%. Diagnostic yield was 80.6%. CONCLUSION TBLC has an acceptable safety profile in experienced hands. Radiological traction bronchiectasis and obesity increase the risk of significant bleeding following TBLC.
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Affiliation(s)
- John Taverner
- Royal Brompton and Harefield Hospitals, London, UK
- Guy's and St Thomas' Hospitals NHS Trust, London, UK
- Alfred Health, Melbourne, Victoria, Australia
| | | | - Justin L Garner
- Royal Brompton and Harefield Hospitals, London, UK
- Guy's and St Thomas' Hospitals NHS Trust, London, UK
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Christopher M Orton
- Royal Brompton and Harefield Hospitals, London, UK
- Guy's and St Thomas' Hospitals NHS Trust, London, UK
| | - Andrew G Nicholson
- Royal Brompton and Harefield Hospitals, London, UK
- Guy's and St Thomas' Hospitals NHS Trust, London, UK
| | - Sujal R Desai
- Royal Brompton and Harefield Hospitals, London, UK
- Guy's and St Thomas' Hospitals NHS Trust, London, UK
| | - Athol U Wells
- Royal Brompton and Harefield Hospitals, London, UK
- Guy's and St Thomas' Hospitals NHS Trust, London, UK
| | - Pallav L Shah
- Royal Brompton and Harefield Hospitals, London, UK
- Guy's and St Thomas' Hospitals NHS Trust, London, UK
- National Heart and Lung Institute, Imperial College London, London, UK
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11
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Jiang L, Deng Y, Xu F, Qiao S, Wang C. Individualized PEEP guided by EIT in patients undergoing general anesthesia: A systematic review and meta-analysis. J Clin Anesth 2024; 94:111397. [PMID: 38278058 DOI: 10.1016/j.jclinane.2024.111397] [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: 05/05/2023] [Revised: 12/27/2023] [Accepted: 01/13/2024] [Indexed: 01/28/2024]
Abstract
BACKGROUND The determination of optimal positive end-expiratory pressure (PEEP) values in patients undergoing general anesthesia remains controversial. Electrical impedance tomography (EIT) directed individualized PEEP has emerged as a novel approach to PEEP setting and has garnered increasing attention. This meta-analysis aims to systematically assess the effect of EIT-guided PEEP setting compared to traditional fixed PEEP values or other PEEP titration strategies in patients undergoing general anesthesia. METHODS A comprehensive search of electronic databases, including PubMed, Web of Science, EMBASE, and the Cochrane Library, was conducted from inception to January 2023, with no language restrictions. The search terms used were "EIT"and "PEEP" with their corresponding free words. Two researchers independently conducted literature screening, data extraction, and quality evaluation. The primary outcomes of interest were oxygenation index (OI), lung compliance, and number of postoperative pulmonary complications (PPCs). The secondary outcomes included mean arterial blood pressure (MAP) and number of vasoactive drug injections. RevMan 5.3 software was used to analyze the data and draw the forest plot, and Stata 14.2 software was used to conduct sensitivity analysis to assess the stability of the results. RESULTS 5 studies involving 272 participants were included in this meta-analysis. Our findings suggest that EIT-guided individualized PEEP setting is superior to traditional fixed PEEP values and other individualized PEEP titration methods in terms of intraoperative OI(OR = 95.73, 95%CI: (49.10, 142.37); P < 0.0001) and lung compliance(OR = 7.69, 95%CI: (5.55, 9.83); P < 0.00001), without affecting intraoperative hemodynamic parameters such as MAP(OR = 2.07, 95%CI: (-1.00, 5.13); P = 0.19) and the number of intravenous vasoactive drugs(OR = 1.22, 95%CI: (0.68, 2.21); P = 0.51) or increasing the incidence of postoperative PPCs(OR = 0.87, 95%CI: (0.41, 1.82); P = 0.71). CONCLUSIONS Our meta-analysis suggests potential benefits of EIT-guided individualized PEEP setting in improving intraoperative oxygenation and lung compliance in patients undergoing general anesthesia. However, further research is needed to establish conclusive evidence, and caution should be exercised in interpreting these findings as the current literature remains inconclusive regarding the impact on intraoperative hemodynamics and postoperative complications.
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Affiliation(s)
- Lingyan Jiang
- Faculty of Anesthesiology, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou Science and Technology Town Hospital, Suzhou, China; Department of Anesthesiology and Pain Medicine, Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Yanjun Deng
- Faculty of Anesthesiology, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou Science and Technology Town Hospital, Suzhou, China; Department of Intensive Care Unit, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou Science and Technology Town Hospital, Suzhou, China
| | - Fuqi Xu
- Faculty of Anesthesiology, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou Science and Technology Town Hospital, Suzhou, China
| | - Shigang Qiao
- Faculty of Anesthesiology, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou Science and Technology Town Hospital, Suzhou, China; Institute of Clinical Medicine Research, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou Science and Technology Town Hospital, Suzhou, Jiangsu Province, China
| | - Chen Wang
- Faculty of Anesthesiology, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou Science and Technology Town Hospital, Suzhou, China; Institute of Clinical Medicine Research, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou Science and Technology Town Hospital, Suzhou, Jiangsu Province, China.
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12
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Liang TW, Shen CH, Wu YS, Chang YT. Erector spinae plane block reduces opioid consumption and improves incentive spirometry volume after cardiac surgery: A retrospective cohort study. J Chin Med Assoc 2024; 87:550-557. [PMID: 38501787 DOI: 10.1097/jcma.0000000000001086] [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] [Indexed: 03/20/2024] Open
Abstract
BACKGROUND Effective postoperative pain management is vital in cardiac surgery to prevent opioid dependency and respiratory complications. Previous studies on the erector spinae plane (ESP) block have focused on single-shot applications or immediate postoperative outcomes. This study evaluates the efficacy of continuous ESP block vs conventional care in reducing opioid consumption and enhancing respiratory function recovery postcardiac surgery over 72 hours. METHODS A retrospective study at a tertiary hospital (January 2021-July 2022) included 262 elective cardiac surgery patients. Fifty-three received a preoperative ESP block, matched 1:1 with a control group (n = 53). The ESP group received 0.5% ropivacaine intraoperatively and 0.16% ropivacaine every 4 hours postoperatively. Outcomes measured were cumulative oral morphine equivalent (OME) dose within 72 hours postextubation, daily maximum numerical rating scale (NRS) ≥3, incentive spirometry volume, and %baseline performance, stratified by surgery type (sternotomy or thoracotomy). RESULTS Significant OME reduction was observed in the ESP group (sternotomy: median decrease of 113 mg, 95% CI: 60-157.5 mg, p < 0.001; thoracotomy: 172.5 mg, 95% CI: 45-285 mg, p = 0.010). The ESP group also had a lower risk of daily maximum NRS ≥3 (adjusted OR sternotomy: 0.22, p < 0.001; thoracotomy: 0.07, p < 0.001), a higher incentive spirometry volumes (sternotomy: mean increase of 149 mL, p = 0.019; thoracotomy: 521 mL, p = 0.017), and enhanced spirometry %baseline (sternotomy: mean increase of 11.5%, p = 0.014; thoracotomy: 26.5%, p < 0.001). CONCLUSION Continuous ESP block was associated with a reduction of postoperative opioid requirements, lower instances of pain scores ≥3, and improve incentive spirometry performance following cardiac surgery. These benefits appear particularly prominent in thoracotomy patients. Further prospective studies with larger sample size are required to validate these findings.
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Affiliation(s)
- Ting-Wei Liang
- Department of Anesthesiology, Show Chwan Memorial Hospital, Changhua, Taiwan, ROC
| | - Ching-Hui Shen
- Department of Anesthesiology, Taichung Veterans General Hospital, Taichung, Taiwan, ROC
- Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan, ROC
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Yung-Szu Wu
- Department of Cardiac Surgery, Taichung Veterans General Hospital, Taichung, Taiwan, ROC
| | - Yi-Ting Chang
- Department of Anesthesiology, Taichung Veterans General Hospital, Taichung, Taiwan, ROC
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13
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Vetrugno L, Deana C, Colaianni-Alfonso N, Tritapepe F, Fierro C, Maggiore SM. Noninvasive respiratory support in the perioperative setting: a narrative review. Front Med (Lausanne) 2024; 11:1364475. [PMID: 38695030 PMCID: PMC11061466 DOI: 10.3389/fmed.2024.1364475] [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: 01/02/2024] [Accepted: 04/08/2024] [Indexed: 05/04/2024] Open
Abstract
The application of preoperative noninvasive respiratory support (NRS) has been expanding with increasing recognition of its potential role in this setting as a physiological optimization for patients with a high risk of developing atelectasis and postoperative pulmonary complications (PPC). The increased availability of high-performance anesthesia ventilator machines providing an easy way for NRS support in patients with reduced lung function should not be under-evaluated. This support can reduce hypoxia, restore lung volumes and theoretically reduce atelectasis formation after general anesthesia. Therapeutic purposes should also be considered in the perioperative setting, such as preoperative NRS to optimize treatment of patients' pre-existing diseases, e.g., sleep-disordered breathing. Finally, the recent guidelines for airway management suggest preoperative NRS application before anesthesia induction in difficult airway management to prolong the time needed to secure the airway with an orotracheal tube. This narrative review aims to revise all these aspects and to provide some practical notes to maximize the efficacy of perioperative noninvasive respiratory support.
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Affiliation(s)
- Luigi Vetrugno
- Department of Medical, Oral and Biotecnological Science, “G. D’Annunzio” Chieti-Pescara University, Chieti, Italy
- Department of Anesthesiology, Critical Care Medicine and Emergency, SS. Annunziata Hospital, Chieti, Italy
| | - Cristian Deana
- Department of Anesthesia and Intensive Care, Health Integrated Agency of Friuli Centrale, Udine, Italy
| | | | - Fabrizio Tritapepe
- Department of Anesthesiology, Critical Care Medicine and Emergency, SS. Annunziata Hospital, Chieti, Italy
| | - Carmen Fierro
- Department of Anesthesiology, Critical Care Medicine and Emergency, SS. Annunziata Hospital, Chieti, Italy
| | - Salvatore Maurizio Maggiore
- Department of Anesthesiology, Critical Care Medicine and Emergency, SS. Annunziata Hospital, Chieti, Italy
- Department of Innovative Technologies in Medicine & Dentistry, Section of Anesthesia and Intensive Care, SS. Annunziata Hospital, G. D’Annunzio University, Chieti, Italy
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14
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Wang Y, Song Y, Wang R, Wu Y, Li M, Xu K, He R, Wang Z, Li Q, Kong FM(S, Wang T. Clinical factors and major pathological response after neoadjuvant chemoimmunotherapy in potentially resectable lung squamous cell carcinoma. Front Oncol 2024; 14:1265228. [PMID: 38680859 PMCID: PMC11045983 DOI: 10.3389/fonc.2024.1265228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 03/18/2024] [Indexed: 05/01/2024] Open
Abstract
Objective Major pathological response (MPR) helps evaluate the prognosis of patients with lung squamous cell carcinoma (LUSC). However, the clinical factors that affect the achievement of MPR after neoadjuvant chemoimmunotherapy (NCIO) in patients with LUSC remain unclear. This study aimed to explore the clinical factors affecting the MPR after NCIO in patients with potentially resectable LUSC. Methods This retrospective study included patients with stage IIB-IIIC LUSC who underwent surgical resection after receiving NCIO at a center between March 2020 and November 2022. In addition to the postoperative pathological remission rate, sex, age, body mass index (BMI), smoking history, TNM stage, hematological and imaging test results, and other indicators were examined before NCIO. According to the pathological response rate of the surgically removed tumor tissue, the patients were split into MPR and non-MPR groups. Results In total, 91 LUSC patients who met the study's eligibility criteria were enrolled: 32 (35%) patients in the non-MPR group and 59 (65%) in the MPR group, which included 43 cases of pathological complete remission (pCR). Pre-treatment lymphocyte level (LY) (odds ratio [OR] =5.997), tumor burden (OR=0.958), N classification (OR=15.915), radiographic response (OR=11.590), pulmonary atelectasis (OR=5.413), and PD-L1 expression (OR=1.028) were independently associated with MPR (all P < 0.05). Based on these six independent predictors, we developed a nomogram model of prediction having an area under the curve (AUC) of 0.914 that is simple to apply clinically to predict the MPR. The MPR group showed greater disease-free survival (DFS) than the non-MPR group, according to the survival analysis (P < 0.001). Conclusion The MPR rate of NCIO for potentially resectable LUSC was 65%. LY, tumor burden, N classification, radiographic response, pulmonary atelectasis, and PD-L1 expression in patients with LUSC before NCIO were the independent and ideal predictors of MPR. The developed nomogram demonstrated a good degree of accuracy and resilience in predicting the MPR following NCIO, indicating that it is a useful tool for assuring customized therapy for patients with possibly resectable LUSC.
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Affiliation(s)
- Ye Wang
- Department of Radiotherapy, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Cancer Hospital of Dalian University of Technology, Shenyang, Liaoning, China
- School of Graduate, Dalian Medical University, Dalian, China
| | - Yingqiu Song
- Department of Radiotherapy, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Cancer Hospital of Dalian University of Technology, Shenyang, Liaoning, China
| | - Runze Wang
- Department of Radiotherapy, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Cancer Hospital of Dalian University of Technology, Shenyang, Liaoning, China
| | - Yu Wu
- Department of Radiotherapy, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Cancer Hospital of Dalian University of Technology, Shenyang, Liaoning, China
- School of Graduate, Dalian Medical University, Dalian, China
| | - Mo Li
- Department of Breast Surgery, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, China
| | - Ke Xu
- Department of Thoracic Surgery, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, China
| | - Rong He
- Department of Thoracic Surgery, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, China
| | - Zheng Wang
- Department of Thoracic Surgery, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, China
| | - Qingqing Li
- Department of Endoscopy, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, China
| | - Feng-Ming (Spring) Kong
- Department of Clinical Oncology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
- Department of Clinical Oncology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Tianlu Wang
- Department of Radiotherapy, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Cancer Hospital of Dalian University of Technology, Shenyang, Liaoning, China
- Faculty of Medicine, Dalian University of Technology, Dalian, China
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15
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Ribeiro BM, Tucci MR, Victor Júnior MH, Melo JR, Gomes S, Nakamura MAM, Morais CCA, Beraldo MA, Lima CAS, Alcala GC, Amato MBP. Influence of Fractional Inspired Oxygen Tension on Lung Perfusion Distribution, Regional Ventilation, and Lung Volume during Mechanical Ventilation of Supine Healthy Swine. Anesthesiology 2024; 140:752-764. [PMID: 38207290 DOI: 10.1097/aln.0000000000004903] [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: 01/13/2024]
Abstract
BACKGROUND Lower fractional inspired oxygen tension (Fio2) during general anesthesia can reduce lung atelectasis. The objectives are to evaluate the effect of two Fio2 (0.4 and 1) during low positive end-expiratory pressure (PEEP) ventilation over lung perfusion distribution, volume, and regional ventilation. These variables were evaluated at two PEEP levels and unilateral lung atelectasis. METHODS In this exploratory study, 10 healthy female piglets (32.3 ± 3.4 kg) underwent mechanical ventilation in two atelectasis models: (1) bilateral gravitational atelectasis (n = 6), induced by changes in PEEP and Fio2 in three combinations: high PEEP with low Fio2 (Fio2 = 0.4), zero PEEP (PEEP0) with low Fio2 (Fio2 = 0.4), and PEEP0 with high Fio2 (Fio2 = 1); and (2) unilateral atelectasis (n = 6), induced by left bronchial occlusion, with the left lung aerated (Fio2 = 0.21) and low aerated (Fio2 = 1; n = 5 for this step). Measurements were conducted after 10 min in each step, encompassing assessment of respiratory mechanics, oxygenation, and hemodynamics; lung ventilation and perfusion by electrical impedance tomography; and lung aeration and perfusion by computed tomography. RESULTS During bilateral gravitational atelectasis, PEEP reduction increased atelectasis in dorsal regions, decreased respiratory compliance, and distributed lung ventilation to ventral regions with a parallel shift of perfusion to the same areas. With PEEP0, there were no differences between low and high Fio2 in respiratory compliance (23.9 ± 6.5 ml/cm H2O vs. 21.9 ± 5.0; P = 0.441), regional ventilation, and regional perfusion, despite higher lung collapse (18.6 ± 7.6% vs. 32.7 ± 14.5%; P = 0.045) with high Fio2. During unilateral lung atelectasis, the deaerated lung had a lower shunt (19.3 ± 3.6% vs. 25.3 ± 5.5%; P = 0.045) and lower computed tomography perfusion to the left lung (8.8 ± 1.8% vs. 23.8 ± 7.1%; P = 0.007). CONCLUSIONS PEEP0 with low Fio2, compared with high Fio2, did not produce significant changes in respiratory system compliance, regional lung ventilation, and perfusion despite significantly lower lung collapse. After left bronchial occlusion, the shrinkage of the parenchyma with Fio2 = 1 enhanced hypoxic pulmonary vasoconstriction, reducing intrapulmonary shunt and perfusion of the nonventilated areas. EDITOR’S PERSPECTIVE
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Affiliation(s)
- Bruno M Ribeiro
- Laboratorio de Pneumologia LIM-09, Disciplina de Pneumologia, Instituto de Cardiologia (Incor), Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Mauro R Tucci
- Laboratorio de Pneumologia LIM-09, Disciplina de Pneumologia, Instituto de Cardiologia (Incor), Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Marcus H Victor Júnior
- Laboratorio de Pneumologia LIM-09, Disciplina de Pneumologia, Instituto de Cardiologia (Incor), Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil; Electronics Engineering, Aeronautics Institute of Technology, Sao Jose dos Campos, Brazil
| | - Jose R Melo
- Laboratorio de Pneumologia LIM-09, Disciplina de Pneumologia, Instituto de Cardiologia (Incor), Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Susimeire Gomes
- Laboratorio de Pneumologia LIM-09, Disciplina de Pneumologia, Instituto de Cardiologia (Incor), Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Maria A M Nakamura
- Laboratorio de Pneumologia LIM-09, Disciplina de Pneumologia, Instituto de Cardiologia (Incor), Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Caio C A Morais
- Laboratorio de Pneumologia LIM-09, Disciplina de Pneumologia, Instituto de Cardiologia (Incor), Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Marcelo A Beraldo
- Laboratorio de Pneumologia LIM-09, Disciplina de Pneumologia, Instituto de Cardiologia (Incor), Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Cristhiano A S Lima
- Laboratorio de Pneumologia LIM-09, Disciplina de Pneumologia, Instituto de Cardiologia (Incor), Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Glasiele C Alcala
- Laboratorio de Pneumologia LIM-09, Disciplina de Pneumologia, Instituto de Cardiologia (Incor), Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Marcelo B P Amato
- Laboratorio de Pneumologia LIM-09, Disciplina de Pneumologia, Instituto de Cardiologia (Incor), Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
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Wang Y, Zhu S, Liu X, Zhao B, Zhang X, Luo Z, Liu P, Guo Y, Zhang Z, Yu P. Linking preoperative and early intensive care unit data for prolonged intubation prediction. Front Cardiovasc Med 2024; 11:1342586. [PMID: 38601045 PMCID: PMC11005457 DOI: 10.3389/fcvm.2024.1342586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 03/06/2024] [Indexed: 04/12/2024] Open
Abstract
Objectives Prolonged intubation (PI) is a frequently encountered severe complication among patients following cardiac surgery (CS). Solely concentrating on preoperative data, devoid of sufficient consideration for the ongoing impact of surgical, anesthetic, and cardiopulmonary bypass procedures on subsequent respiratory system function, could potentially compromise the predictive accuracy of disease prognosis. In response to this challenge, we formulated and externally validated an intelligible prediction model tailored for CS patients, leveraging both preoperative information and early intensive care unit (ICU) data to facilitate early prophylaxis for PI. Methods We conducted a retrospective cohort study, analyzing adult patients who underwent CS and utilizing data from two publicly available ICU databases, namely, the Medical Information Mart for Intensive Care and the eICU Collaborative Research Database. PI was defined as necessitating intubation for over 24 h. The predictive model was constructed using multivariable logistic regression. External validation of the model's predictive performance was conducted, and the findings were elucidated through visualization techniques. Results The incidence rates of PI in the training, testing, and external validation cohorts were 11.8%, 12.1%, and 17.5%, respectively. We identified 11 predictive factors associated with PI following CS: plateau pressure [odds ratio (OR), 1.133; 95% confidence interval (CI), 1.111-1.157], lactate level (OR, 1.131; 95% CI, 1.067-1.2), Charlson Comorbidity Index (OR, 1.166; 95% CI, 1.115-1.219), Sequential Organ Failure Assessment score (OR, 1.096; 95% CI, 1.061-1.132), central venous pressure (OR, 1.052; 95% CI, 1.033-1.073), anion gap (OR, 1.075; 95% CI, 1.043-1.107), positive end-expiratory pressure (OR, 1.087; 95% CI, 1.047-1.129), vasopressor usage (OR, 1.521; 95% CI, 1.23-1.879), Visual Analog Scale score (OR, 0.928; 95% CI, 0.893-0.964), pH value (OR, 0.757; 95% CI, 0.629-0.913), and blood urea nitrogen level (OR, 1.011; 95% CI, 1.003-1.02). The model exhibited an area under the receiver operating characteristic curve (AUROC) of 0.853 (95% CI, 0.840-0.865) in the training cohort, 0.867 (95% CI, 0.853-0.882) in the testing cohort, and 0.704 (95% CI, 0.679-0.727) in the external validation cohort. Conclusions Through multicenter internal and external validation, our model, which integrates early ICU data and preoperative information, exhibited outstanding discriminative capability. This integration allows for the accurate assessment of PI risk in the initial phases following CS, facilitating timely interventions to mitigate adverse outcomes.
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Affiliation(s)
- Yuqiang Wang
- Cardiovascular Surgery Research Laboratory, West China Hospital, Sichuan University, Chengdu, China
| | - Shihui Zhu
- Mailman School of Public Health, Columbia University, New York, NY, United States
| | - Xiaoli Liu
- Center for Artificial Intelligence in Medicine, The General Hospital of PLA, Beijing, China
| | - Bochao Zhao
- School of Automation, University of Science and Technology Beijing, Beijing, China
| | - Xiu Zhang
- Rehabilitation Medicine Center, West China Hospital, Sichuan University, Chengdu, China
| | - Zeruxin Luo
- Rehabilitation Medicine Center, West China Hospital, Sichuan University, Chengdu, China
| | - Peizhao Liu
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Yingqiang Guo
- Cardiovascular Surgery Research Laboratory, West China Hospital, Sichuan University, Chengdu, China
| | - Zhengbo Zhang
- Center for Artificial Intelligence in Medicine, The General Hospital of PLA, Beijing, China
| | - Pengming Yu
- Rehabilitation Medicine Center, West China Hospital, Sichuan University, Chengdu, China
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Needleman SH, Kim M, McClelland JR, Naish JH, Tibiletti M, O'Connor JPB, Parker GJM. Independent component analysis (ICA) applied to dynamic oxygen-enhanced MRI (OE-MRI) for robust functional lung imaging at 3 T. Magn Reson Med 2024; 91:955-971. [PMID: 37984456 PMCID: PMC10952250 DOI: 10.1002/mrm.29912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 09/03/2023] [Accepted: 10/13/2023] [Indexed: 11/22/2023]
Abstract
PURPOSE Dynamic lung oxygen-enhanced MRI (OE-MRI) is challenging due to the presence of confounding signals and poor signal-to-noise ratio, particularly at 3 T. We have created a robust pipeline utilizing independent component analysis (ICA) to automatically extract the oxygen-induced signal change from confounding factors to improve the accuracy and sensitivity of lung OE-MRI. METHODS Dynamic OE-MRI was performed on healthy participants using a dual-echo multi-slice spoiled gradient echo sequence at 3 T and cyclical gas delivery. ICA was applied to each echo within a thoracic mask. The ICA component relating to the oxygen-enhancement signal was automatically identified using correlation analysis. The oxygen-enhancement component was reconstructed, and the percentage signal enhancement (PSE) was calculated. The lung PSE of current smokers was compared with nonsmokers; scan-rescan repeatability, ICA pipeline repeatability, and reproducibility between two vendors were assessed. RESULTS ICA successfully extracted a consistent oxygen-enhancement component for all participants. Lung tissue and oxygenated blood displayed the opposite oxygen-induced signal enhancements. A significant difference in PSE was observed between the lungs of current smokers and nonsmokers. The scan-rescan repeatability and the ICA pipeline repeatability were good. CONCLUSION The developed pipeline demonstrated sensitivity to the signal enhancements of the lung tissue and oxygenated blood at 3 T. The difference in lung PSE between current smokers and nonsmokers indicates a likely sensitivity to lung function alterations that may be seen in mild pathology, supporting future use of our methods in patient studies.
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Affiliation(s)
- Sarah H. Needleman
- Centre for Medical Image Computing (CMIC), Department of Medical Physics and Biomedical EngineeringUniversity College LondonLondonUK
| | - Mina Kim
- Centre for Medical Image Computing (CMIC), Department of Medical Physics and Biomedical EngineeringUniversity College LondonLondonUK
| | - Jamie R. McClelland
- Centre for Medical Image Computing (CMIC), Department of Medical Physics and Biomedical EngineeringUniversity College LondonLondonUK
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences (WEISS), Department of Medical Physics and Biomedical EngineeringUniversity College LondonLondonUK
| | - Josephine H. Naish
- Bioxydyn LimitedManchesterUK
- BHF Manchester Centre for Heart and Lung Magnetic Resonance Research (MCMR), Manchester University NHS Foundation TrustManchesterUK
| | | | | | - Geoff J. M. Parker
- Centre for Medical Image Computing (CMIC), Department of Medical Physics and Biomedical EngineeringUniversity College LondonLondonUK
- Bioxydyn LimitedManchesterUK
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18
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Zhao L, Li Z, Jin B, Hou N, Yang H. Safety and efficacy of low-dose esketamine in laparoscopic cholecystectomy: a prospective, double-blind randomized controlled trial. BMC Anesthesiol 2024; 24:47. [PMID: 38302944 PMCID: PMC10832235 DOI: 10.1186/s12871-024-02429-5] [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: 09/13/2023] [Accepted: 01/24/2024] [Indexed: 02/03/2024] Open
Abstract
BACKGROUND Esketamine, recognized for its analgesic, sedative, and anti-inflammatory qualities, is integral in multimodal analgesia. However, the potential opioid-sparing effects of intravenous esketamine, along with its impact on inflammatory responses, and cognitive function during laparoscopic surgery, remain unexplored. METHODS In this study, 90 patients scheduled for laparoscopic cholecystectomy were equally randomized into three groups: a normal saline control group (NS), a low-dose esketamine group (LS) and a high-dose esketamine group (HS). Subsequently, we monitored several parameters: hemodynamics, levels of stress and inflammatory responses, intraoperative doses of sufentanil, remifentanil, and propofol, and 24-hour postoperative sufentanil requirements. We also evaluated alterations in cognitive function, perioperative indicators, and potential adverse reactions among the three groups. RESULTS Compared to their levels 5 minutes prior to anesthesia (T0) and 30 minutes post-operation (T4), the NS group exhibited a more significant decrease in Mean Arterial Pressure (MAP) and Heart Rate (HR) at various time intervals: 5 minutes after the skin incision (T1), 30 minutes post-incision (T2), and at the conclusion of the operation (T3), compared to the LS and HS groups(P < 0.05). Furthermore, the NS group exhibited a greater increase in levels of adrenaline (AD), noradrenaline (NE), endothelin (ET), C-reactive protein (CRP), tumor necrosis factor-alpha (TNF-α), and interleukin-6 (IL-6) at T1, T2, and T3, more so than the other two groups(P < 0.05). 24 hours after the surgery, patients in the LS group and HS group had significantly higher Montreal Cognitive Assessment (MoCA) scores than those in the NS group(P < 0.05). The LS and HS groups required lower doses of propofol, remifentanil, and sufentanil during surgery (P < 0.05), experienced shorter postoperative recovery times, and had lower incidences of nausea, vomiting, and respiratory depression compared to the NS group (P < 0.05). CONCLUSION The administration of low-dose esketamine has been shown to be safe, effective, and dependable in the context of laparoscopic gallbladder surgery. It has the capacity to stabilize hemodynamic responses, ameliorate both stress and inflammatory reactions from surgery, and hastens anesthesia recovery. Furthermore, it fosters the restoration of postoperative cognitive function. Notably, when combined with nalbuphine, it exhibits opioid-sparing effects, reducing postoperative adverse outcomes. TRIAL REGISTRATION The trial is registered with the China Clinical Trials Registry Registration Number: ChiCTR2300067596. Retrospectively registered (date of registration: 12/01/2023).
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Affiliation(s)
- Lu Zhao
- Department of Anesthesiology, The Third Affiliated Hospital of Anhui Medical University, The First People's Hospital of Hefei, Hefei, 230061, Anhui, China
| | - Zhengyu Li
- Department of Anesthesiology, The Third Affiliated Hospital of Anhui Medical University, The First People's Hospital of Hefei, Hefei, 230061, Anhui, China
| | - Bi Jin
- Department of Anesthesiology, The Third Affiliated Hospital of Anhui Medical University, The First People's Hospital of Hefei, Hefei, 230061, Anhui, China
| | - Nina Hou
- Department of Anesthesiology, The Third Affiliated Hospital of Anhui Medical University, The First People's Hospital of Hefei, Hefei, 230061, Anhui, China
| | - Heng Yang
- Department of Anesthesiology, The Third Affiliated Hospital of Anhui Medical University, The First People's Hospital of Hefei, Hefei, 230061, Anhui, China.
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19
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Wang L, Du Y, Huang N, Yin N, Du J, Yang J, Jiang L, Mao Y. Clinical characteristics and anaesthetic management of severe scoliosis patients with spinal muscular atrophy: case series. Ann Med Surg (Lond) 2024; 86:643-649. [PMID: 38333301 PMCID: PMC10849356 DOI: 10.1097/ms9.0000000000001562] [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: 09/11/2023] [Accepted: 11/18/2023] [Indexed: 02/10/2024] Open
Abstract
Introduction and importance There is no expert consensus or guidance on perioperative anaesthesia management for spinal surgery of spinal muscular atrophy (SMA) patients with severe scoliosis (Cobb≧90°). We provide a comprehensive summary of the perioperative characteristics observed in patients with SMA and propose an optimized perioperative management strategy for anaesthesia. Methods This study is a retrospective single-centre research. Twenty-six SMA patients with severe scoliosis underwent posterior spinal fusion surgery from September 2019 to September 2022 were enroled. The main outcomes were to show the patients' characteristics in anaesthesia, intra- and post-operative periods. Outcomes Nineteen patients underwent awake transnasal/transairway intubation. The median anaesthesia time of 25 patients treated under total intravenous anaesthesia was 425 min. After operation, the Cobb angle and correction rate in the coronal plane were median 54.0° and 54.4%. The length of mechanical ventilation with endotracheal intubation in ICU was median 17.5 h in 8 patients. The ICU length of stay of postoperative hospital was median 19 days. Postoperative pneumonia developed in nine patients, atelectasis in two patients, and pleural effusion in six patients. All patients did not need special oxygen therapy after discharge. Conclusion Multidisciplinary consultation, lung-protective ventilation strategy, appropriate anaesthetic drugs and reasonable blood transfusion scheme and postoperative monitoring were important in anaesthesia, intraoperative and postoperative periods in the patients of severe scoliosis with spinal muscular atrophy.
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Affiliation(s)
- Lai Wang
- Department of Anesthesiology and Surgical Intensive Care Unit
| | - Yi Du
- Department of Anesthesiology and Surgical Intensive Care Unit
| | - Na Huang
- Department of Anesthesiology and Surgical Intensive Care Unit
| | - Na Yin
- Department of Anesthesiology and Surgical Intensive Care Unit
| | - Junming Du
- Department of Anesthesiology and Surgical Intensive Care Unit
| | - Junlin Yang
- Spine Center, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lai Jiang
- Department of Anesthesiology and Surgical Intensive Care Unit
| | - Yanfei Mao
- Department of Anesthesiology and Surgical Intensive Care Unit
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20
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Dupont K, Lefrançois V, Delahaye A, Sanz M, Hestin R, Doublet T, Parienti JJ, Hanouz JL. Change in stroke volume during alveolar recruitment maneuvers through transient continuous positive airway pressure or stepwise increase in positive end expiratory pressure in anesthetized patients: a prospective randomized double-blind study. Can J Anaesth 2024; 71:224-233. [PMID: 38017197 DOI: 10.1007/s12630-023-02644-7] [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: 04/14/2023] [Revised: 06/28/2023] [Accepted: 07/23/2023] [Indexed: 11/30/2023] Open
Abstract
PURPOSE Intraoperative alveolar recruitment maneuvers (ARM) used during protective ventilation strategy may have severe adverse hemodynamic effects, reported mainly during abrupt continuous positive airway pressure (CPAP). Stepwise increase and decrease in positive end expiratory pressure (PEEP) may be used. We compared the hemodynamic effects of these two maneuvers. METHODS We enrolled patients scheduled for intermediate to high-risk surgery with continuous arterial pressure and stroke volume (esophageal Doppler) monitoring in a prospective, single-centre, randomized, double-blind study. After induction of anesthesia, we ensured preload independence of stroke volume before an ARM was randomly performed: 30 cm H2O CPAP for 30 sec (CPAP group) or stepwise increase in PEEP from 8 to 20 cm H2O with inspiratory pressure of 10 cm H2O followed by a stepwise decrease in PEEP from 20 to 8 cm H2O (STEP group). The primary outcome was the relative variation in stroke volume. RESULTS Thirty-five patients were included in the CPAP and STEP groups. Mean (standard deviation) relative variation in stroke volume was -57 (24)% in the CPAP group and -32 (24)% in the STEP group (difference, -25; 95% confidence interval, -37 to -14; P < 0.001). Changes in systolic, mean, and diastolic arterial pressure over time were not different between groups. The ARM was stopped because of a systolic arterial pressure < 70 mm Hg in four patients in the CPAP group and in one patient in the STEP group. CONCLUSIONS Alveolar recruitment maneuvers through stepwise increase and decrease in PEEP have a better hemodynamic tolerance than transient CPAP. TRIAL REGISTRATION ClinicalTrials.gov (NCT04802421); first submitted 15 March 2021.
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Affiliation(s)
- Kevin Dupont
- Service Anesthésie Réanimation, CHU de Caen, Avenue de la Côte de Nacre, CS 30001, 14000, Caen, France
| | - Valentin Lefrançois
- Service Anesthésie Réanimation, CHU de Caen, Avenue de la Côte de Nacre, CS 30001, 14000, Caen, France
| | - Antoine Delahaye
- Service Anesthésie Réanimation, CHU de Caen, Avenue de la Côte de Nacre, CS 30001, 14000, Caen, France
| | - Marine Sanz
- Service Anesthésie Réanimation, CHU de Caen, Avenue de la Côte de Nacre, CS 30001, 14000, Caen, France
| | - Rémi Hestin
- Service Anesthésie Réanimation, CHU de Caen, Avenue de la Côte de Nacre, CS 30001, 14000, Caen, France
| | - Théophane Doublet
- Service Anesthésie Réanimation, CHU de Caen, Avenue de la Côte de Nacre, CS 30001, 14000, Caen, France
| | - Jean-Jacques Parienti
- Department of Clinical Research and Biostatistics, Caen University Hospital and Caen Normandy University, Caen, France
- UFR Medecine, Uiversité Caen Normandie, 2 Rue des Rochambelles, 14032 Caen Cedex 5, Caen, France
| | - Jean-Luc Hanouz
- Service Anesthésie Réanimation, CHU de Caen, Avenue de la Côte de Nacre, CS 30001, 14000, Caen, France.
- UFR Medecine, Uiversité Caen Normandie, 2 Rue des Rochambelles, 14032 Caen Cedex 5, Caen, France.
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21
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Fioccola A, Nicolardi RV, Pozzi T, Fratti I, Romitti F, Collino F, Reupke V, Bassi GL, Protti A, Santini A, Cressoni M, Busana M, Moerer O, Camporota L, Gattinoni L. Estimation of normal lung weight index in healthy female domestic pigs. Intensive Care Med Exp 2024; 12:6. [PMID: 38273120 PMCID: PMC10811311 DOI: 10.1186/s40635-023-00591-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 12/21/2023] [Indexed: 01/27/2024] Open
Abstract
INTRODUCTION Lung weight is an important study endpoint to assess lung edema in porcine experiments on acute respiratory distress syndrome and ventilatory induced lung injury. Evidence on the relationship between lung-body weight relationship is lacking in the literature. The aim of this work is to provide a reference equation between normal lung and body weight in female domestic piglets. MATERIALS AND METHODS 177 healthy female domestic piglets from previous studies were included in the analysis. Lung weight was assessed either via a CT-scan before any experimental injury or with a scale after autopsy. The animals were randomly divided in a training (n = 141) and a validation population (n = 36). The relation between body weight and lung weight index (lung weight/body weight, g/kg) was described by an exponential function on the training population. The equation was tested on the validation population. A Bland-Altman analysis was performed to compare the lung weight index in the validation population and its theoretical value calculated with the reference equation. RESULTS A good fit was found between the validation population and the exponential equation extracted from the training population (RMSE = 0.060). The equation to determine lung weight index from body weight was: [Formula: see text] At the Bland and Altman analyses, the mean bias between the real and the expected lung weight index was - 0.26 g/kg (95% CI - 0.96-0.43), upper LOA 3.80 g/kg [95% CI 2.59-5.01], lower LOA - 4.33 g/kg [95% CI = - 5.54-(- 3.12)]. CONCLUSIONS This exponential function might be a valuable tool to assess lung edema in experiments involving 16-50 kg female domestic piglets. The error that can be made due to the 95% confidence intervals of the formula is smaller than the one made considering the lung to body weight as a linear relationship.
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Affiliation(s)
- Antonio Fioccola
- Department of Health Sciences, University of Florence, Florence, Italy
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | - Rosmery Valentina Nicolardi
- IRCCS San Raffaele Scientific Institute, Milan, Italy
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | - Tommaso Pozzi
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
- Department of Health Sciences, University of Milan, Milan, Italy
| | - Isabella Fratti
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
- Department of Health Sciences, University of Milan, Milan, Italy
| | - Federica Romitti
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | | | - Verena Reupke
- Department of Experimental Animal Medicine, University of Göttingen, Göttingen, Germany
| | - Gianluigi Li Bassi
- Critical Care Research Group, The Prince Charles Hospital, Brisbane, QLD, Australia
- Prince Charles Hospital Northside Clinical Unit, Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia
- Uniting Care Hospitals, Intensive Care Units St Andrew's War Memorial Hospital and The Wesley Hospital, Brisbane, QLD, Australia
- Wesley Medical Research, Brisbane, QLD, Australia
- Queensland University of Technology, Brisbane, QLD, Australia
| | - Alessandro Protti
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
- Department of Anesthesia and Intensive Care Units, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Alessandro Santini
- Department of Anesthesia and Intensive Care Units, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Massimo Cressoni
- Unit of Radiology, IRCCS, Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - Mattia Busana
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | - Onnen Moerer
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
| | - Luigi Camporota
- Department of Adult Critical Care Guy's & St Thomas' NHS Foundation Trust, London, UK
- Centre for Human & Applied Physiological Sciences, School of Basic & Medical Biosciences, King's College London, London, UK
| | - Luciano Gattinoni
- Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany.
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22
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Khan A, Bashour S, Sabath B, Lin J, Sarkiss M, Song J, Sagar AES, Shah A, Casal RF. Severity of Atelectasis during Bronchoscopy: Descriptions of a New Grading System ( Atelectasi sSeverity Scoring System-"ASSESS") and At-Risk-Lung Zones. Diagnostics (Basel) 2024; 14:197. [PMID: 38248073 PMCID: PMC10814045 DOI: 10.3390/diagnostics14020197] [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: 11/14/2023] [Revised: 01/02/2024] [Accepted: 01/04/2024] [Indexed: 01/23/2024] Open
Abstract
Atelectasis during bronchoscopy under general anesthesia is very common and can have a detrimental effect on navigational and diagnostic outcomes. While the intraprocedural incidence and anatomic location have been previously described, the severity of atelectasis has not. We reviewed chest CT images of patients who developed atelectasis in the VESPA trial (Ventilatory Strategy to Prevent Atelectasis). By drawing boundaries at the posterior chest wall (A), the anterior aspect of the vertebral body (C), and mid-way between these two lines (B), we delineated at-risk lung zones 1, 2, and 3 (from posterior to anterior). An Atelectasis Severity Score System ("ASSESS") was created, classifying atelectasis as "mild" (zone 1), "moderate" (zones 1-2), and "severe" (zones 1-2-3). A total of 43 patients who developed atelectasis were included in this study. A total of 32 patients were in the control arm, and 11 were in the VESPA arm; 20 patients (47%) had mild atelectasis, 20 (47%) had moderate atelectasis, and 3 (6%) had severe atelectasis. A higher BMI was associated with increased odds (1.5 per 1 unit change; 95% CI, 1.10-2.04) (p = 0.0098), and VESPA was associated with decreased odds (0.05; 95% CI, 0.01-0.47) (p = 0.0080) of developing moderate to severe atelectasis. ASSESS is a simple method used to categorize intra-bronchoscopy atelectasis, which allows for a qualitative description of this phenomenon to be developed. In the VESPA trial, a higher BMI was not only associated with increased incidence but also increased severity of atelectasis, while VESPA had the opposite effect. Preventive strategies should be strongly considered in patients with risk factors for atelectasis who have lesions located in zones 1 and 2, but not in zone 3.
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Affiliation(s)
- Asad Khan
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA (B.S.); (J.L.)
| | - Sami Bashour
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA (B.S.); (J.L.)
| | - Bruce Sabath
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA (B.S.); (J.L.)
| | - Julie Lin
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA (B.S.); (J.L.)
| | - Mona Sarkiss
- Department of Anesthesia and Peri-Operative Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Juhee Song
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Ala-Eddin S. Sagar
- Department of Internal Medicine, King Faisal Specialist Hospital and Research Center, Madinah 42523, Saudi Arabia;
| | - Archan Shah
- Department of Onco-Medicine, Banner MD Anderson Cancer Center, Gilbert, AZ 85234, USA;
| | - Roberto F. Casal
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA (B.S.); (J.L.)
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23
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Camporesi A, Pierucci UM, Paladini G, Gentile A, Buonsenso D, Pelizzo G. Lung ultrasound-guided best positive end-expiratory pressure in neonatal anesthesia: a proposed randomized, controlled study. Pediatr Res 2024; 95:393-396. [PMID: 37648746 DOI: 10.1038/s41390-023-02730-y] [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: 03/15/2023] [Revised: 05/27/2023] [Accepted: 06/01/2023] [Indexed: 09/01/2023]
Abstract
BACKGROUND Atelectasis is a common complication in neonatal anesthesia. Lung ultrasound (LUS) can be used intraoperatively to evaluate and recognize atelectatic lung areas. Hypotheses for the study are: (1) The use of LUS to guide choice of best positive end-expiratory pressure (PEEP) can lead to reduction of FiO2 to achieve same saturations of oxygen (SpO2). (2) In a less de-recruited lung, there will be less postoperative pulmonary complications. (3) Static respiratory system compliance could be different. (4) Hemodynamic parameters and amount of fluids infused or need for vasopressors intraoperatively could be different. METHODS We propose a randomized controlled trial that compares standard PEEP settings with LUS-guided PEEP choice in patients under 2 months of age undergoing general anesthesia. RESULTS The primary aim is to determine whether LUS-guided PEEP choice in neonatal anesthesia, compared to standard PEEP choice, can lead to reduction of FiO2 applied to the ventilatory setting in order to maintain same SpO2s. Secondary aims are to determine whether patients treated with LUS-guided PEEP will develop less postoperative pulmonary complications, will have a significant difference in hemodynamic parameters and amount of fluids or vasopressors infused, and in static respiratory system compliance. CONCLUSIONS We expect a significant reduction of FiO2 in LUS-guided ventilation. IMPACT Lung atelectasis is extremely common in neonatal anesthesia, because of the physiology of the neonatal lung and chest wall and leads to hypoxemia, being a lung area with a perfusion/ventilation mismatch. Raising inspired fraction of oxygen can overcome temporarily hypoxemia but oxygen is a toxic compound for newborns. Lung ultrasound (LUS) can detect atelectasis at bedside and be used to optimize ventilator settings including choice of positive end-expiratory pressure (PEEP). This randomized controlled trial (RCT) aims at demonstrating that LUS-guided choice of best PEEP during neonatal anesthesia can lead to reduction of inspired fractions of oxygen to keep same peripheral saturations SpO2.
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Affiliation(s)
- Anna Camporesi
- Department of Pediatric Anesthesia and Intensive Care, Buzzi Children's Hospital, Milan, Italy.
| | | | - Giuseppe Paladini
- Department of Pediatric Anesthesia and Intensive Care, Buzzi Children's Hospital, Milan, Italy
| | - Andrea Gentile
- Department of Medical-Surgical Physiopathology and Transplants, University of Milan, Milan, Italy
| | - Danilo Buonsenso
- Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario "A. Gemelli", Roma, Italy
| | - Gloria Pelizzo
- Pediatric Surgery Department, Buzzi Children's Hospital, Milan, Italy
- Department of Biomedical and Clinical Science, Luigi Sacco University Hospital, Milan, Italy
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24
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Longo S, Cheong I, Siri JE, Tamagnone F, Acosta C. Doppler images of intrapulmonary arteries within atelectasis and its impact on right ventricular afterload with transesophageal echocardiography. REVISTA ESPANOLA DE ANESTESIOLOGIA Y REANIMACION 2024; 71:48-53. [PMID: 37678467 DOI: 10.1016/j.redare.2023.09.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 01/07/2023] [Indexed: 09/09/2023]
Abstract
Video-assisted thoracoscopy (VATS) cardiac surgery requires one-lung ventilation (OLV) and transoesophageal ultrasound (TOE) monitoring. Colour and spectral Doppler make it possible to study the pattern of blood flow in the pulmonary vessels within the atelectatic lung. In this case report we describe how TOE can be used to detect blood flow within the atelectatic lung and to assess pulmonary vascular resistance (PVR) and right ventricular (RV) afterload. FINDINGS: Three anaesthetised, mechanically ventilated adults scheduled for cardiac surgery by VATS were scanned with TOE. After left OLV, the transducer was rotated away from the heart to obtain 2D colour Doppler images of blood flow within the consolidated lung parenchyma. We were able to identify the flow pattern of the intrapulmonary branches of the pulmonary artery. PVR was recorded using pulsed cardiac Doppler at baseline, after induction of general anaesthesia, 20 min after OLV and at the end of OLV, and after performing an alveolar recruitment manoeuvre (ARM) that led to complete resolution of the aforementioned consolidation. CONCLUSIONS: TOE is a semi-invasive imaging tool that can be used to diagnose and study PVR-induced atelectasis and to analyse the resulting pulmonary shunt and its possible effect on PVR.
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Affiliation(s)
- S Longo
- Anestesiología, Hospital Privado Universitario de Córdoba, Argentina; Asociación Argentina de Ultrasonografía Crítica (ASARUC), Argentina.
| | - I Cheong
- Unidad de Cuidados Intensivos, Sanatorio de Los Arcos, Buenos Aires, Argentina; Asociación Argentina de Ultrasonografía Crítica (ASARUC), Argentina
| | - J E Siri
- Anestesiología, Hospital Privado Universitario de Córdoba, Argentina
| | - F Tamagnone
- Asociación Argentina de Ultrasonografía Crítica (ASARUC), Argentina
| | - C Acosta
- Anestesiología, Hospital Privado de la Comunidad de Mar del Plata, Argentina
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25
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Gentili A. Lung-protective strategy during one-lung ventilation: current and future approaches to quantify the role of positive end-expiratory pressure. Minerva Anestesiol 2024; 90:3-5. [PMID: 38088091 DOI: 10.23736/s0375-9393.23.17841-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Affiliation(s)
- Andrea Gentili
- Department of Anesthesia and Intensive Care, Villa Laura Hospital, Bologna, Italy -
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26
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Li Y, Wang T, Zhang Y, Li M, Feng X, Xu R, Xu H, Xia W, Zhao Y, Hou X, Wei H, Liu Z, Zan Y, Zhao B, Liu C, He X, Liang X, Liu M, Jiang L, Wang W, Shen Y, Wang D, Mi B, Bai Y, Yu X, Huang X, Jia X, Fu X, Guo H, Jiao M. Association of lung diseases with coronavirus disease 2019 in cancer patients receiving immune checkpoint inhibitors: A multicenter study during national Omicron outbreak in China. Clin Transl Med 2023; 13:e1497. [PMID: 38093559 PMCID: PMC10719537 DOI: 10.1002/ctm2.1497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 11/12/2023] [Accepted: 11/16/2023] [Indexed: 12/17/2023] Open
Affiliation(s)
- Yanlin Li
- Department of Medical OncologyFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Tongfei Wang
- Department of Medical OncologyXi 'an No.3 Hospitalthe Affiliated Hospital of Northwest UniversityXi'anChina
| | - Yamin Zhang
- Department of OncologyXi'an International Medical Center HospitalXi'anChina
| | - Miao Li
- Department of Medical OncologyQinghai Provincial Cancer HospitalFifth People's Hospital of Qinghai ProvinceXi'anChina
| | - Xiemin Feng
- Department of Medical OncologyYan'an University Affiliated HospitalYan'anChina
| | - Rui Xu
- Department of Medical OncologyShaanxi Provincial Cancer HospitalXi'anChina
| | - Hong Xu
- Department of Medical OncologyXi 'an No.3 Hospitalthe Affiliated Hospital of Northwest UniversityXi'anChina
| | - Weihu Xia
- Department of OncologyXi'an International Medical Center HospitalXi'anChina
| | - Yaning Zhao
- Department of Medical OncologyBaoji Central HospitalBaojiChina
| | - Xinli Hou
- Department of Medical OncologyHanzhong Central HospitalHanzhongChina
| | - Hui Wei
- 4th Department of OncologyAffiliated Hospital of Shaanxi University of Chinese MedicineXianyangChina
| | - Zhiyan Liu
- Department of Respiratory and Critical Care MedicineXi 'an No.3 Hospitalthe Affiliated Hospital of Northwest UniversityXi'anChina
| | - Ying Zan
- Department of Medical OncologySecond Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Bing Zhao
- Department of Pulmonary MedicineAffiliated Cancer Hospital of Xinjiang Medical UniversityUrumqiChina
| | - Chunling Liu
- Department of Pulmonary MedicineAffiliated Cancer Hospital of Xinjiang Medical UniversityUrumqiChina
| | - Xiaopeng He
- Department of Respiratory MedicineXianyang Central HospitalXianyangChina
| | - Xuan Liang
- Department of Medical OncologyFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Mengjie Liu
- Department of Medical OncologyFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Lili Jiang
- Department of Medical OncologyFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Wenjuan Wang
- Department of Medical OncologyFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Yuan Shen
- Department of Epidemiology and BiostatisticsSchool of Public HealthXi'an Jiaotong University Health Science CenterXi'anChina
| | - Duolao Wang
- Department of Epidemiology and BiostatisticsSchool of Public Health, Xi'an Jiaotong University Health Science CenterXi’anChina
| | - Baibing Mi
- Department of Epidemiology and BiostatisticsSchool of Public HealthXi'an Jiaotong University Health Science CenterXi'anChina
| | - Yixue Bai
- Department of Medical OncologyFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Xin Yu
- Department of Medical OncologyFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Xubo Huang
- Department of Medical OncologyFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Xiaohui Jia
- Department of Medical OncologyFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Xiaolan Fu
- Department of Medical OncologyFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Hui Guo
- Department of Medical OncologySecond Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
- Key Laboratory of Environment and Genes Related to DiseasesXi'an Jiaotong UniversityXi'anChina
- Bioinspired Engineering and Biomechanics CenterXi'an Jiaotong UniversityXi'anChina
| | - Min Jiao
- Department of Medical OncologyFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
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Hu Y, Shen W, Pan Y. The prognostic value of red blood cell distribution width for pulmonary infection in elderly patients received abdominal surgery with tracheal intubation and general anesthesia. J Natl Med Assoc 2023; 115:519-527. [PMID: 37852881 DOI: 10.1016/j.jnma.2023.09.002] [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: 02/16/2023] [Revised: 07/16/2023] [Accepted: 09/25/2023] [Indexed: 10/20/2023]
Abstract
BACKGROUND Red blood cell distribution width (RDW) has been shown to be an important predictor of the occurrence of various inflammatory and infectious diseases. However, the predictive value of RDW for pulmonary infection in elderly patients undergoing abdominal surgery under general anesthesia with endotracheal intubation remains unclear. METHODS A total of 200 eligible elderly patients who underwent abdominal surgery with endotracheal intubation and general anesthesia in our hospital from January 2019 to January 2022 were included in this study. During hospitalization, there were 64 cases with different degrees of pulmonary infection, and 136 cases without pulmonary infection. Participants' RDW levels were analyzed on admission. Serum levels of inflammatory factors in infected patients were analyzed during hospitalization. Multivariate logistic analysis was performed to evaluate clinical factors for pulmonary infection during hospitalization following-up abdominal surgery with endotracheal intubation and general anesthesia in elderly patients. Youden's J statistic was used to define the correlation. RESULTS RDW at admission was independently associated with the risk of pulmonary infection in elderly patients undergoing general anesthesia with endotracheal intubation for abdominal surgery ([OR 1.952, 95% confidence interval 1.604 to 2.279, p=0.006]). RDW at admission was statistically positively correlated with inflammatory factors, including procalcitonin (p<0.001), C-reactive protein (p<0.001), and tumor necrosis factor-α (p<0.001), in elderly patients with postoperative pneumonia who underwent abdominal surgery. CONCLUSION RDW at admission had predictive value for pulmonary infection in elderly patients undergoing abdominal surgery under general anesthesia with endotracheal intubation.
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Affiliation(s)
- Yifeng Hu
- Department of Anesthesiology, Wuxi No.2 People's Hospital, Jiangnan University Medical Center, JUMC, No. 68 Zhongshan Road, Wuxi 214000, Jiangsu, China
| | - Weihong Shen
- Department of Anesthesiology, Wuxi No.2 People's Hospital, Jiangnan University Medical Center, JUMC, No. 68 Zhongshan Road, Wuxi 214000, Jiangsu, China
| | - Yunsong Pan
- Department of Anesthesiology, Wuxi No.2 People's Hospital, Jiangnan University Medical Center, JUMC, No. 68 Zhongshan Road, Wuxi 214000, Jiangsu, China.
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Cai W, Gu W, Ni H, Zhao L, Zhong S, Wang W. Effects of laryngeal mask ventilation on postoperative atelectasis in children undergoing day surgery: a randomized controlled trial. BMC Anesthesiol 2023; 23:362. [PMID: 37932735 PMCID: PMC10626763 DOI: 10.1186/s12871-023-02327-2] [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: 04/02/2023] [Accepted: 10/27/2023] [Indexed: 11/08/2023] Open
Abstract
BACKGROUND To compare the effects of laryngeal mask mechanical ventilation and preserved spontaneous breathing on postoperative atelectasis in children undergoing day surgery. METHODS Children aged 3-7 who underwent elective day surgery were randomly divided into a spontaneous breathing group (n = 23) and a mechanical ventilation group (n = 23). All children enrolled in this trial used the same anesthesia induction protocol, the incidence and severity of atelectasis before induction and after operation were collected. In addition, the baseline data, intraoperative vital signs, ventilator parameters and whether there were complications such as reflux and aspiration were also collected. SPSS was used to calculate whether there was a statistical difference between these indicators. RESULTS The incidence of atelectasis in the spontaneous breathing group was 91.30%, and 39.13% in the mechanical ventilation group, and the difference was statistically significant (P = 0.001). There was a statistically significant difference in carbon dioxide (P < 0.05), and the severity of postoperative atelectasis in the mechanical ventilation group was lower than that in the spontaneous breathing group (P < 0.05). In addition, there were no significant differences in the vital signs and baseline data of the patients (P > 0.05). CONCLUSION Laryngeal mask mechanical ventilation can reduce the incidence and severity of postoperative atelectasis in children undergoing day surgery, and we didn't encounter any complications such as reflux and aspiration in children during the perioperative period, so mechanical ventilation was recommended to be used for airway management. TRIAL REGISTRATION The clinical trial was registered retrospectively at the Chinese Clinical Trial Registry. ( https://www.chictr.org.cn . Registration number ChiCTR2300071396, Weiwei Cai, 15 May 2023).
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Affiliation(s)
- Weiwei Cai
- Department of Anesthesiology, Children's Hospital of Nanjing Medical University, Nanjing, 210000, China
| | - Wei Gu
- Department of Statistics, Children's Hospital of Nanjing Medical University, Nanjing, 210000, China
| | - Huanhuan Ni
- Department of Anesthesiology, Children's Hospital of Nanjing Medical University, Nanjing, 210000, China
| | - Longde Zhao
- Department of Anesthesiology, Children's Hospital of Nanjing Medical University, Nanjing, 210000, China
| | - Shan Zhong
- Department of Anesthesiology, Children's Hospital of Nanjing Medical University, Nanjing, 210000, China.
| | - Wei Wang
- Department of Anesthesiology, Children's Hospital of Fudan University, ShangHai, 201102, China.
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Turan Civraz AZ, Saracoglu A, Saracoglu KT. Evaluation of the Effect of Pressure-Controlled Ventilation-Volume Guaranteed Mode vs. Volume-Controlled Ventilation Mode on Atelectasis in Patients Undergoing Laparoscopic Surgery: A Randomized Controlled Clinical Trial. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1783. [PMID: 37893501 PMCID: PMC10607930 DOI: 10.3390/medicina59101783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 09/27/2023] [Accepted: 10/05/2023] [Indexed: 10/29/2023]
Abstract
Background and Objectives: Laparoscopic surgery, which results in less bleeding, less postoperative pain, and better cosmetic results, may affect the lung dynamics via the pneumoperitoneum. After laparoscopic surgery, atelectasis develops. The primary aim of the present study is to demonstrate the effects of two different ventilation modes on the development of atelectasis using lung ultrasound, and the secondary outcomes include the plateau pressure, peak inspiratory pressure, and compliance differences between the groups. Materials and Methods: In this study, 62 participants aged 18-75 years undergoing laparoscopic cholecystectomy were enrolled. The patients were randomly assigned into two groups: the volume-controlled ventilation (VCV) group (group V) or the pressure-controlled-volume guaranteed ventilation (PCV-VG) group (group PV). The lung ultrasound score (LUS) was obtained thrice: prior to induction (T1), upon the patient's initial arrival in the recovery room (T2), and just before departing the recovery unit (T3). The hemodynamic data and mechanical ventilation parameters were recorded at different times intraoperatively. Results: The LUS score was similar between the groups at all the times. The change in the LUS score of the right lower anterior chest was statistically higher in the VCV group than the PCV group. The peak inspiratory pressure (PIP) was found to be statistically higher in the V group than the PV group five minutes after induction (T5) (20.84 ± 4.32 p = 0.021). The plateau pressure was found to be higher in the V group than the PV group at all times (after induction (Tind) 17.29 ± 5.53 p = 0.004, (T5) 17.77 ± 4.89 p = 0.001, after pneumoperitoneum (TPP) 19.71 ± 4.28 p = 0.002). Compliance was found to be statistically higher in the PV group than the V group at all times ((Tind) 48.87 ± 15.37 p = 0.011, (T5) 47.94 ± 13.71 p = 0.043, (TPP) 35.65 ± 6.90 p = 0.004). Before and after the pneumoperitoneum, the compliance was determined to be lower in the V group than the PV group, respectively (40.68 ± 13.91 p = 0.043, 30.77 ± 5.73 p = 0.004). Conclusions: LUS score was similar between groups at all times. The PCV-VG mode was superior to the VCV mode in providing optimal ventilatory pressures and maintaining high dynamic compliance in patients undergoing laparoscopic abdominal surgery.
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Affiliation(s)
| | - Ayten Saracoglu
- College of Medicine, Qatar University, Doha P.O. Box 2713, Qatar; (A.S.); (K.T.S.)
- Department of Anesthesiology, ICU and Perioperative Medicine, Aisha Bint Hamad Hospital, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar
| | - Kemal Tolga Saracoglu
- College of Medicine, Qatar University, Doha P.O. Box 2713, Qatar; (A.S.); (K.T.S.)
- Anesthesiology Section, Hazm Mebaireek General Hospital, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar
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De Meyer GRA, Morrison SG, Saldien V, Jorens PG, Schepens T. Minimizing Lung Injury During Laparoscopy in Head-Down Tilt: A Physiological Cohort Study. Anesth Analg 2023; 137:841-849. [PMID: 36729514 DOI: 10.1213/ane.0000000000006325] [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: 02/03/2023]
Abstract
BACKGROUND Increased intra-abdominal pressure during laparoscopy induces atelectasis. Positive end-expiratory pressure (PEEP) can alleviate atelectasis but may cause hyperinflation. Cyclic opening of collapsed alveoli and hyperinflation can lead to ventilator-induced lung injury and postoperative pulmonary complications. We aimed to study the effect of PEEP on atelectasis, lung stress, and hyperinflation during laparoscopy in the head-down (Trendelenburg) position. METHODS An open-label, repeated-measures, interventional, physiological cohort trial was designed. All participants were recruited from a single tertiary Belgian university hospital. Twenty-three nonobese patients scheduled for laparoscopy in the Trendelenburg position were recruited.We applied a decremental PEEP protocol: 15 (high), 10 and 5 (low) cm H 2 O. Atelectasis was studied with the lung ultrasound score, the end-expiratory transpulmonary pressure, the arterial oxygen partial pressure to fraction of inspired oxygen concentration (P ao2 /Fi o2 ) ratio, and the dynamic respiratory system compliance. Global hyperinflation was evaluated by dead space volume, and regional ventilation was evaluated by lung ultrasound. Lung stress was estimated using the transpulmonary driving pressure and dynamic compliance. Data are reported as medians (25th-75th percentile). RESULTS At 15, 10, and 5 cm H 2 O PEEP, the respective measurements were: lung ultrasound scores (%) 11 (0-22), 27 (11-39), and 53 (42-61) ( P < .001); end-expiratory transpulmonary pressures (cm H 2 O) 0.9 (-0.6 to 1.7), -0.3 (-2.0 to 0.7), and -1.9 (-4.6 to -0.9) ( P < .001); P ao2 /Fi o2 ratios (mm Hg) 471 (435-538), 458 (410-537), and 431 (358-492) ( P < .001); dynamic respiratory system compliances (mL/cm H 2 O) 32 (26-36), 30 (25-34), and 27 (22-30) ( P < .001); driving pressures (cm H 2 O) 8.2 (7.5-9.5), 9.3 (8.5-11.1), and 11.0 (10.3-12.2) ( P < .001); and alveolar dead space ventilation fractions (%) 10 (9-12), 10 (9-12), and 9 (8-12) ( P = .23). The lung ultrasound score was similar between apical and basal lung regions at each PEEP level ( P = .76, .37, and .76, respectively). CONCLUSIONS Higher PEEP levels during laparoscopy in the head-down position facilitate lung-protective ventilation. Atelectasis and lung stress are reduced in the absence of global alveolar hyperinflation.
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Affiliation(s)
- Gregory R A De Meyer
- From the Department of Anesthesia, Antwerp University Hospital, Edegem, Belgium
- Department of Critical Care Medicine, Antwerp University Hospital, Edegem, Belgium
- Laboratory of Experimental Medicine and Pediatrics, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Stuart G Morrison
- From the Department of Anesthesia, Antwerp University Hospital, Edegem, Belgium
| | - Vera Saldien
- From the Department of Anesthesia, Antwerp University Hospital, Edegem, Belgium
- Antwerp Surgical Training, Anatomy and Research Centre, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Philippe G Jorens
- Department of Critical Care Medicine, Antwerp University Hospital, Edegem, Belgium
- Laboratory of Experimental Medicine and Pediatrics, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Tom Schepens
- Department of Critical Care Medicine, Antwerp University Hospital, Edegem, Belgium
- Laboratory of Experimental Medicine and Pediatrics, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
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Lim L, Lee J, Hwang SY, Lee H, Oh SY, Kang C, Ryu HG. Early Postoperative Fever and Atelectasis in Patients Undergoing Upper Abdominal Surgery. J Am Coll Surg 2023; 237:606-613. [PMID: 37350477 DOI: 10.1097/xcs.0000000000000789] [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: 06/24/2023]
Abstract
BACKGROUND Atelectasis is a common complication after upper abdominal surgery and considered as a cause of early postoperative fever (EPF) within 48 hours after surgery. However, the pathophysiologic mechanism of how atelectasis causes fever remains unclear. STUDY DESIGN Data for adult patients who underwent elective major upper abdominal surgery under general anesthesia at Seoul National University Hospital between January and December of 2021 were retrospectively analyzed. The primary outcome was the association between fever and atelectasis within 2 days after surgery. RESULTS Of 1,624 patients, 810 patients (49.9%) developed EPF. The incidence of atelectasis was similar between the fever group and the no-fever group (51.6% vs 53.9%, p = 0.348). Multivariate analysis showed no significant association between atelectasis and EPF. Culture tests (21.7% vs 8.8%, p < 0.001) and prolonged use of antibiotics (25.9% vs 13.9%, p < 0.001) were more frequent in the fever group compared to the no-fever group. However, the frequency of bacterial growth on culture tests and postoperative pulmonary complications within 7 days were similar between the two groups. CONCLUSIONS EPF after major upper abdominal surgery was not associated with radiologically detected atelectasis. EPF also was not associated with the increased risk of postoperative pulmonary complications, bacterial growth on culture studies, or prolonged length of hospital stay.
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Affiliation(s)
- Leerang Lim
- From the Departments of Anesthesiology and Pain Medicine, Seoul National University Hospital (Lim, Hwang, H Lee, Ryu), Seoul National University College of Medicine, Daehak-ro 101, Jongno-gu, Seoul, Korea
| | - Jihyuk Lee
- Radiology (J Lee), Seoul National University College of Medicine, Daehak-ro 101, Jongno-gu, Seoul, Korea
| | - So Yeong Hwang
- From the Departments of Anesthesiology and Pain Medicine, Seoul National University Hospital (Lim, Hwang, H Lee, Ryu), Seoul National University College of Medicine, Daehak-ro 101, Jongno-gu, Seoul, Korea
| | - Hannah Lee
- From the Departments of Anesthesiology and Pain Medicine, Seoul National University Hospital (Lim, Hwang, H Lee, Ryu), Seoul National University College of Medicine, Daehak-ro 101, Jongno-gu, Seoul, Korea
| | - Seung-Young Oh
- Critical Care Medicine (Oh, Kang, Ryu), Seoul National University College of Medicine, Daehak-ro 101, Jongno-gu, Seoul, Korea
- Surgery (Oh), Seoul National University College of Medicine, Daehak-ro 101, Jongno-gu, Seoul, Korea
| | - Christine Kang
- Critical Care Medicine (Oh, Kang, Ryu), Seoul National University College of Medicine, Daehak-ro 101, Jongno-gu, Seoul, Korea
| | - Ho Geol Ryu
- From the Departments of Anesthesiology and Pain Medicine, Seoul National University Hospital (Lim, Hwang, H Lee, Ryu), Seoul National University College of Medicine, Daehak-ro 101, Jongno-gu, Seoul, Korea
- Critical Care Medicine (Oh, Kang, Ryu), Seoul National University College of Medicine, Daehak-ro 101, Jongno-gu, Seoul, Korea
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Paganini M, Moon RE, Giacon TA, Cialoni D, Martani L, Zucchi L, Garetto G, Talamonti E, Camporesi EM, Bosco G. Relative hypoxemia at depth during breath-hold diving investigated through arterial blood gas analysis and lung ultrasound. J Appl Physiol (1985) 2023; 135:863-871. [PMID: 37650139 DOI: 10.1152/japplphysiol.00777.2022] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 08/23/2023] [Accepted: 08/23/2023] [Indexed: 09/01/2023] Open
Abstract
Pulmonary gas exchange in breath-hold diving (BHD) consists of a progressive increase in arterial partial pressures of oxygen ([Formula: see text]) and carbon dioxide ([Formula: see text]) during descent. However, recent findings have demonstrated that [Formula: see text] does not consistently rise in all subjects. This study aimed at verifying and explaining [Formula: see text] derangements during BHD analyzing arterial blood gases and searching for pulmonary alterations with lung ultrasound. After ethical approval, 14 fit breath-hold divers were included. Experiments were performed in warm water (temperature: 31°C). We analyzed arterial blood gases immediately before, at depth, and immediately after a breath-hold dive to -15 m of fresh water (mfw) and -42 mfw. Signs of lung interstitial edema and atelectasis were searched simultaneously with a marinized lung ultrasound. In five subjects (-15 mfw) and four subjects (-42 mfw), the [Formula: see text] at depth seems to decrease instead of increasing. [Formula: see text] and lactate showed slight variations. At depth, no lung ultrasound alterations were seen except in one subject (hypoxemia and B-lines at -15 mfw; B-lines at the surface). Lung interstitial edema was detected in 3 and 12 subjects after resurfacing from -15 to -42 mfw, respectively. Two subjects developed hypoxemia at depth and a small lung atelectasis (a focal pleural irregularity of triangular shape, surrounded by thickened B-lines) after resurfacing from -42 mfw. Current experiments confirmed that some BH divers can experience hypoxemia at depth. The hypothesized explanation for such a discrepancy is lung atelectasis, which could not be detected in all subjects probably due to limited time available at depth.NEW & NOTEWORTHY During breath-hold diving, arterial partial pressure of oxygen ([Formula: see text]) and arterial partial pressure of carbon dioxide ([Formula: see text]) are believed to increase progressively during descent, as explained by theory, previous end-tidal alveolar gas measurements, and arterial blood gas analysis in hyperbaric chambers. Recent experiments in real underwater environment found a paradoxical [Formula: see text] drop at depth in some divers. This work confirms that some breath-hold divers can experience hypoxemia at depth. The hypothesized explanation for such a discrepancy is lung atelectasis, as suggested by lung ultrasound findings.
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Affiliation(s)
- Matteo Paganini
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Richard E Moon
- Department of Anesthesiology, Center for Hyperbaric Medicine and Environmental Physiology, Duke University Medical Center, Durham, North Carolina, United States
| | | | - Danilo Cialoni
- Europe Research Division, Divers Alert Network (DAN), Roseto degli Abruzzi, Italy
| | - Luca Martani
- Hyperbaric Medicine Unit, Vaio Hospital, Fidenza, Italy
| | - Lorenzo Zucchi
- Emergency Medicine Residency Program, Department of Medicine (DIMED), University of Padova, Padova, Italy
| | | | - Ennio Talamonti
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Enrico M Camporesi
- TEAMHealth Research Institute, Tampa General Hospital, Tampa, Florida, United States
| | - Gerardo Bosco
- Department of Biomedical Sciences, University of Padova, Padova, Italy
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Visagan R, Boseta E, Zoumprouli A, Papadopoulos MC, Saadoun S. Spinal cord perfusion pressure correlates with breathing function in patients with acute, cervical traumatic spinal cord injuries: an observational study. Crit Care 2023; 27:362. [PMID: 37730639 PMCID: PMC10512582 DOI: 10.1186/s13054-023-04643-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 09/09/2023] [Indexed: 09/22/2023] Open
Abstract
OBJECTIVE This study aims to determine the relationship between spinal cord perfusion pressure (SCPP) and breathing function in patients with acute cervical traumatic spinal cord injuries. METHODS We included 8 participants without cervical TSCI plus 13 patients with cervical traumatic spinal cord injuries, American Spinal Injury Association Impairment Scale grades A-C. In the TSCI patients, we monitored intraspinal pressure from the injury site for up to a week and computed the SCPP as mean arterial pressure minus intraspinal pressure. Breathing function was quantified by diaphragmatic electromyography using an EDI (electrical activity of the diaphragm) nasogastric tube as well as by ultrasound of the diaphragm and the intercostal muscles performed when sitting at 20°-30°. RESULTS We analysed 106 ultrasound examinations (total 1370 images/videos) and 198 EDI recordings in the patients with cervical traumatic spinal cord injuries. During quiet breathing, low SCPP (< 60 mmHg) was associated with reduced EDI-peak (measure of inspiratory effort) and EDI-min (measure of the tonic activity of the diaphragm), which increased and then plateaued at SCPP 60-100 mmHg. During quiet and deep breathing, the diaphragmatic thickening fraction (force of diaphragmatic contraction) plotted versus SCPP had an inverted-U relationship, with a peak at SCPP 80-90 mmHg. Diaphragmatic excursion (up and down movement of the diaphragm) during quiet breathing did not correlate with SCPP, but diaphragmatic excursion during deep breathing plotted versus SCPP had an inverse-U relationship with a peak at SCPP 80-90 mmHg. The thickening fraction of the intercostal muscles plotted versus SCPP also had inverted-U relationship, with normal intercostal function at SCPP 80-100 mmHg, but failure of the upper and middle intercostals to contract during inspiration (i.e. abdominal breathing) at SCPP < 80 or > 100 mmHg. CONCLUSIONS After acute, cervical traumatic spinal cord injuries, breathing function depends on the SCPP. SCPP 80-90 mmHg correlates with optimum diaphragmatic and intercostal muscle function. Our findings raise the possibility that intervention to maintain SCPP in this range may accelerate ventilator liberation which may reduce stay in the neuro-intensive care unit.
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Affiliation(s)
- Ravindran Visagan
- Academic Neurosurgery Unit, St. George's, University of London, Cranmer Terrace, London, SW17 0RE, UK
| | - Ellaine Boseta
- Academic Neurosurgery Unit, St. George's, University of London, Cranmer Terrace, London, SW17 0RE, UK
- Neuro-anaesthesia and Neuro-intensive Care Unit, St. George's Hospital, London, SW17 0QT, UK
| | - Argyro Zoumprouli
- Neuro-anaesthesia and Neuro-intensive Care Unit, St. George's Hospital, London, SW17 0QT, UK
| | - Marios C Papadopoulos
- Academic Neurosurgery Unit, St. George's, University of London, Cranmer Terrace, London, SW17 0RE, UK
| | - Samira Saadoun
- Academic Neurosurgery Unit, St. George's, University of London, Cranmer Terrace, London, SW17 0RE, UK.
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Larsson A, Östberg E, Edmark L. Arterial partial pressure of oxygen as a marker of airway closure does not correlate with the efficacy of pre-oxygenation: A prospective cohort study. Eur J Anaesthesiol 2023; 40:699-706. [PMID: 37395501 DOI: 10.1097/eja.0000000000001869] [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: 07/04/2023]
Abstract
BACKGROUND The prerequisites for the early formation of anaesthesia-related atelectasis are pre-oxygenation with its resulting high alveolar oxygen content, and airway closure. Airway closure increases with age, so it seems counterintuitive that atelectasis formation during anaesthesia does not. One proposed explanation is that pre-oxygenation is impaired in the elderly by airway closure present in the waking state. The extent of airway closure cannot be assessed at the bedside, but arterial partial pressure of oxygen ( Pa O 2 ) as a surrogate variable of the resulting ventilation to perfusion mismatch can. OBJECTIVE The primary aim was to test the hypothesis that a decreased efficacy of pre-oxygenation, measured as the fraction of end-tidal oxygen (F E' O 2 ) after 3 min of pre-oxygenation, correlates with decreased Pa O 2 on room air. We also re-investigated the influence on F E' O 2 by age. DESIGN Prospective observational study. SETTING Two regional hospitals, Västerås and Köping County Hospitals, Västmanland, Sweden, between 30 October 2018 and 17 September 2021. PARTICIPANTS We included 120 adults aged 40 to 79 years presenting for elective noncardiac surgery. INTERVENTION An arterial blood gas was sampled before commencing pre-oxygenation. RESULTS No linear correlation was found between F E' O 2 at 3 min and Pa O 2 or age (Pearson's r = -0.038, P = 0.684; and Pearson's r = -0.113, P = 0.223, respectively). The mean ± SD F E' O 2 at 3 min for the population studied was 0.87 ± 0.05. CONCLUSION The lack of correlation between F E' O 2 at 3 min and Pa O 2 or age during pre-oxygenation has implications for further studies concerning the interaction between airway closure and atelectasis. After 3 min of pre-oxygenation, F E' O 2 , even in the elderly, indicated a high enough alveolar oxygen concentration to promote atelectasis after induction, therefore, it is still unclear why atelectasis formation diminishes after middle age. TRIAL REGISTRATION ClinicalTrials.gov NCT03395782.
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Affiliation(s)
- Alexander Larsson
- From the Department of Anaesthesia and Intensive Care (AL, EÖ, LE) and Region Vastmanland - Uppsala University, Centre for Clinical Research, Vastmanland Hospital Vasteras, Sweden (AL, EÖ, LE)
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Lee S, Choi JW, Chung IS, Kim DK, Sim WS, Kim TJ. Comparison of high-flow nasal cannula and conventional nasal cannula during sedation for endoscopic submucosal dissection: a retrospective study. Therap Adv Gastroenterol 2023; 16:17562848231189957. [PMID: 37655054 PMCID: PMC10467296 DOI: 10.1177/17562848231189957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 05/27/2023] [Indexed: 09/02/2023] Open
Abstract
Background The high-flow nasal cannula (HFNC) is a relatively recent method that provides high-flow, heated, humidified gas delivery. Objectives We compared HFNC (group HF) and conventional nasal cannula (NC) (group CO) during deep sedation with propofol and remifentanil for endoscopic submucosal dissection (ESD). Design Single-center, retrospective observational cohort study. Methods In this study, a total of 159 cases were analyzed (group CO, 71 and group HF, 88). We collected the data from electronic medical records from September 2020 to June 2021. The lowest oxygen saturation (SpO2), incidence of hypoxia (SpO2 < 90%), rescue interventions, and adverse events between the two groups were investigated. Results There were significant differences between the two groups in lowest SpO2 and incidence of hypoxia [group CO versus group HF; 90.3 ± 9.7% versus 95.7 ± 9.0%, 25 (35.2%) versus 10 (11.4%); p < 0.001, p < 0.001; respectively]. Among the rescue interventions, the number of jaw thrust, patient stimulation, O2 flow increase, and nasal airway insertion were significantly higher in the CO group than in the HF group. However, postprocedural chest X-ray showed higher rates of abnormal findings (atelectasis, aspiration, and pneumoperitoneum) in group HF than in group CO [group CO: 8 (11.3%) versus group HF: 26 (29.5%), p = 0.005]. In multivariable analysis, besides group CO, difficult type of lesion was the risk factor for hypoxia. Conclusions Compared to the conventional NC, HFNC provided adequate oxygenation and a stable procedure without significant adverse events during sedation for ESD. However, caution is needed to avoid complications associated with deep sedation and difficult type of lesions.
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Affiliation(s)
- Seungwon Lee
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Ji Won Choi
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Republic of Korea
| | - In Sun Chung
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Duk Kyung Kim
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Woo Seog Sim
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Tae Jun Kim
- Division of Gastroenterology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
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Zhao X, Song Q, Wang Y, Zhang Q, Sun C. Dexmedetomidine improves lung compliance in patients undergoing lateral decubitus position of shoulder arthroscopy: A randomized controlled trial. Medicine (Baltimore) 2023; 102:e33661. [PMID: 37083765 PMCID: PMC10118338 DOI: 10.1097/md.0000000000033661] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 04/10/2023] [Indexed: 04/22/2023] Open
Abstract
BACKGROUND The improvement of oxygenation and pulmonary mechanics in patients under general anesthesia can be achieved by dexmedetomidine (DEX) infusion. However, its role in patients undergoing lateral supine shoulder arthroscopy has not been thoroughly studied. This study aimed to evaluate the effect of DEX on lung compliance in patients undergoing shoulder arthroscopic surgery in a lateral decubitus position. METHODS The patients who underwent lateral recumbent shoulder arthroscopy under general anesthesia were randomly divided into the DEX group (group D) and the control group (group N). At the start of the trial, group D was given 0.5 μg/kg/hours continuous pumping until 30 minutes before the end of anesthesia; Group N was injected with normal saline at the same volume. The patients were recorded at each time point after intubation: supine position for 5 minutes (T0), lateral position for 5 minutes (T1), lateral position for 1 hour (T2), lateral position for 2 hours (T3), airway peak pressure, platform pressure, dynamic lung compliance, and static lung compliance, etc. RESULTS At the end of the drug infusion, the DEX group showed significant improved pulmonary mechanics and higher lung compliance than the control group. Compared with group N, group D's heart rate and mean arterial pressure were lower at all time points; there was no statistical difference in Tidal volume and Pressure end-tidal carbon dioxide data at each time point in Group D. CONCLUSION DEX can improve lung compliance and reduce airway pressure and platform pressure of patients undergoing shoulder arthroscopy in the lateral position under general anesthesia.
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Affiliation(s)
- Xiujie Zhao
- Department of Anesthesiology, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Qianqian Song
- Department of Anesthesiology, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Yewen Wang
- Department of Anesthesiology, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Quanyi Zhang
- Department of Anesthesiology, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Chao Sun
- Department of Anesthesiology, Binzhou Medical University Hospital, Binzhou, Shandong, China
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Broberg E, Pierre L, Fakhro M, Malmsjö M, Lindstedt S, Hyllén S. Releasing high positive end-expiratory pressure to a low level generates a pronounced increase in particle flow from the airways. Intensive Care Med Exp 2023; 11:12. [PMID: 36929361 PMCID: PMC10020405 DOI: 10.1186/s40635-023-00498-3] [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: 06/09/2022] [Accepted: 02/04/2023] [Indexed: 03/18/2023] Open
Abstract
OBJECTIVES Detecting particle flow from the airways by a non-invasive analyzing technique might serve as an additional tool to monitor mechanical ventilation. In the present study, we used a customized particles in exhaled air (PExA) technique, which is an optical particle counter for the monitoring of particle flow in exhaled air. We studied particle flow while increasing and releasing positive end-expiratory pressure (PEEP). The aim of this study was to investigate the impact of different levels of PEEP on particle flow in exhaled air in an experimental setting. We hypothesized that gradually increasing PEEP will reduce the particle flow from the airways and releasing PEEP from a high level to a low level will result in increased particle flow. METHODS Five fully anesthetized domestic pigs received a gradual increase of PEEP from 5 cmH2O to a maximum of 25 cmH2O during volume-controlled ventilation. The particle count along with vital parameters and ventilator settings were collected continuously and measurements were taken after every increase in PEEP. The particle sizes measured were between 0.41 µm and 4.55 µm. RESULTS A significant increase in particle count was seen going from all levels of PEEP to release of PEEP. At a PEEP level of 15 cmH2O, there was a median particle count of 282 (154-710) compared to release of PEEP to a level of 5 cmH2O which led to a median particle count of 3754 (2437-10,606) (p < 0.009). A decrease in blood pressure was seen from baseline to all levels of PEEP and significantly so at a PEEP level of 20 cmH2O. CONCLUSIONS In the present study, a significant increase in particle count was seen on releasing PEEP back to baseline compared to all levels of PEEP, while no changes were seen when gradually increasing PEEP. These findings further explore the significance of changes in particle flow and their part in pathophysiological processes within the lung.
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Affiliation(s)
- Ellen Broberg
- Department of Clinical Sciences, Lund University, Lund, Sweden. .,Department of Cardiothoracic Anaesthesia and Intensive Care, Skåne University Hospital, Entrégatan 8, Level 8, 22241, Lund, Sweden.
| | - Leif Pierre
- Department of Clinical Sciences, Lund University, Lund, Sweden.,Department of Cardiothoracic Anaesthesia and Intensive Care, Skåne University Hospital, Entrégatan 8, Level 8, 22241, Lund, Sweden
| | - Mohammed Fakhro
- Department of Cardiothoracic Surgery, Rigshospitalet, Copenhagen, Denmark
| | - Malin Malmsjö
- Department of Clinical Sciences, Lund University, Lund, Sweden.,Department of Ophthalmology, Skåne University Hospital, Lund, Sweden
| | - Sandra Lindstedt
- Department of Clinical Sciences, Lund University, Lund, Sweden.,Department of Cardiothoracic Surgery, Skåne University Hospital, Lund, Sweden.,Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
| | - Snejana Hyllén
- Department of Clinical Sciences, Lund University, Lund, Sweden.,Department of Cardiothoracic Anaesthesia and Intensive Care, Skåne University Hospital, Entrégatan 8, Level 8, 22241, Lund, Sweden
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Liu J, Ma Y, Xie W, Li X, Wang Y, Xu Z, Bai Y, Yin P, Wu Q. Lasso-Based Machine Learning Algorithm for Predicting Postoperative Lung Complications in Elderly: A Single-Center Retrospective Study from China. Clin Interv Aging 2023; 18:597-606. [PMID: 37082742 PMCID: PMC10112481 DOI: 10.2147/cia.s406735] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 04/07/2023] [Indexed: 04/22/2023] Open
Abstract
Background The predictive effect of systemic inflammatory factors on postoperative pulmonary complications in elderly patients remains unclear. In addition, machine learning models are rarely used in prediction models for elderly patients. Patients and Methods We retrospectively evaluated elderly patients who underwent general anesthesia during a 6-year period. Eligible patients were randomly assigned in a 7:3 ratio to the development group and validation group. The Least logistic absolute shrinkage and selection operator (LASSO) regression model and multiple logistic regression analysis were used to select the optimal feature. The discrimination, calibration and net reclassification improvement (NRI) of the final model were compared with "the Assess Respiratory Risk in Surgical Patients in Catalonia" (ARISCAT) model. Results Of the 9775 patients analyzed, 8.31% developed PPCs. The final model included age, preoperative SpO2, ANS (the Albumin/NLR Score), operation time, and red blood cells (RBC) transfusion. The concordance index (C-index) values of the model for the development cohort and the validation cohort were 0.740 and 0.748, respectively. The P values of the Hosmer-Lemeshow test in two cohorts were insignificant. Our model outperformed ARISCAT model, with C-index (0.740 VS 0.717, P = 0.003) and NRI (0.117, P < 0.001). Conclusion Based on LASSO machine learning algorithm, we constructed a prediction model superior to ARISCAT model in predicting the risk of PPCs. Clinicians could utilize these predictors to optimize prospective and preventive interventions in this patient population.
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Affiliation(s)
- Jie Liu
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Yilei Ma
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Wanli Xie
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Xia Li
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Yanting Wang
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Zhenzhen Xu
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Yunxiao Bai
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Ping Yin
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Qingping Wu
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
- Correspondence: Qingping Wu, Email
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Liu W, Zhang X, Liu K, Kang Z. Lung ultrasound for the diagnosis of pulmonary atelectasis in both adults and pediatrics: A protocol for systematic review and meta-analysis. Medicine (Baltimore) 2022; 101:e28397. [PMID: 36401459 PMCID: PMC9678594 DOI: 10.1097/md.0000000000031519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND The use of lung ultrasound for the diagnosis of pulmonary atelectasis remains controversial. Therefore, we performed a protocol for systematic review and meta-analysis to evaluate the diagnostic accuracy of lung ultrasound for the diagnosis of pulmonary atelectasis both in adults and pediatrics. METHODS A comprehensive search of several databases from 1966 to October 2022 will be conducted. The databases include Ovid Medline In-Process & Other Non-Indexed Citations, Ovid MEDLINE, Ovid EMBASE, Ovid PsycINFO, Ovid Cochrane Central Register of Controlled Trials, Ovid Cochrane Database of Systematic Reviews, and PubMed. After screening and diluting out the articles that met inclusion criteria to be used for statistical analysis, the pooled evaluation indexes including sensitivity and specificity as well as hierarchical summary receiver operating characteristic curves with 95% confidence interval were calculated. All statistical analyses were calculated with STATA, version 12.0 (StataCorp, College Station, TX). RESULT We will synthesize the current studies to evaluate the diagnostic accuracy of lung ultrasound for the diagnosis of pulmonary atelectasis. CONCLUSION The result of this review will provide more reliable references to help clinicians make decisions for the diagnosis of pulmonary atelectasis.
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Affiliation(s)
- Wenlong Liu
- Ultrasonic Center, the Affiliated Hospital of Guizhou Medical University, Guizhou, China
| | - Xu Zhang
- Department of Medical Records, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Heilongjiang, China
| | - Kai Liu
- Endoscopy Room, Shengjing Hospital Affiliated to China Medical University, Liaoning, China
| | - Zhongjing Kang
- Department of Radiology, Songshan General Hospital, Chongqing, China
- * Correspondence: Zhongjing Kang, Department of Radiology, Songshan General Hospital, Chongqing 401438, China (e-mail: )
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40
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Wang J, Zeng J, Zhang C, Zheng W, Huang X, Zhao N, Duan G, Yu C. Optimized ventilation strategy for surgery on patients with obesity from the perspective of lung protection: A network meta-analysis. Front Immunol 2022; 13:1032783. [PMID: 36330511 PMCID: PMC9623268 DOI: 10.3389/fimmu.2022.1032783] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 10/03/2022] [Indexed: 11/28/2022] Open
Abstract
Objectives New ventilation modes have been proposed to support the perioperative treatment of patients with obesity, but there is a lack of consensus regarding the optimal strategy. Therefore, a network meta-analysis update of 13 ventilation strategies was conducted to determine the optimal mode of mechanical ventilation as a protective ventilation strategy decreases pulmonary atelectasis caused by inflammation. Methods The following databases were searched: MEDLINE; Cochrane Library; Embase; CINAHL; Google Scholar; and Web of Science for randomized controlled trials of mechanical ventilation in patients with obesity published up to May 1, 2022. Results Volume-controlled ventilation with individualized positive end-expiratory pressure and a recruitment maneuver (VCV+PEEPind+RM) was found to be the most effective strategy for improving ratio of the arterial O2 partial pressure to the inspiratory O2 concentration (PaO2/FiO2), and superior to pressure-controlled ventilation (PCV), volume-controlled ventilation (VCV), volume-controlled ventilation with recruitment maneuver (VCV+RM), volume-controlled ventilation with low positive end-expiratory pressure (VCV+lowPEEP), volume-controlled ventilation with lower positive expiratory end pressure (PEEP) and recruitment maneuver (VCV+lowPEEP+RM), and the mean difference [MD], the 95% confidence intervals [CIs] and [quality of evidence] were: 162.19 [32.94, 291.45] [very low]; 180.74 [59.22, 302.27] [low]; 171.07 [40.60, 301.54] [very low]; 135.14 [36.10, 234.18] [low]; and 139.21 [27.08, 251.34] [very low]. Surface under the cumulative ranking curve (SUCRA) value showed VCV+PEEPind+RM was the best strategy for improving PaO2/FiO2 (SUCRA: 0.963). VCV with high positive PEEP and recruitment maneuver (VCV+highPEEP+RM) was more effective in decreasing postoperative pulmonary atelectasis than the VCV+lowPEEP+RM strategy. It was found that volume-controlled ventilation with high positive expiratory end pressure (VCV+highPEEP), risk ratio [RR] [95% CIs] and [quality of evidence], 0.56 [0.38, 0.81] [moderate], 0.56 [0.34, 0.92] [moderate]. SUCRA value ranked VCV+highPEEP+RM the best strategy for improving postoperative pulmonary atelectasis intervention (SUCRA: 0.933). It should be noted that the quality of evidence was in all cases very low or only moderate. Conclusions This research suggests that VCV+PEEPind+RM is the optimal ventilation strategy for patients with obesity and is more effective in increasing PaO2/FiO2, improving lung compliance, and among the five ventilation strategies for postoperative atelectasis, VCV+highPEEP+RM had the greatest potential to reduce atelectasis caused by inflammation. Systematic Review Registration https://www.crd.york.ac.uk/PROSPERO/, identifier CRD42021288941.
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Affiliation(s)
- Jing Wang
- Department of Anesthesiology, The Stomatology Hospital Affiliated Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Jie Zeng
- Department of Anesthesiology, The Stomatology Hospital Affiliated Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Chao Zhang
- Department of Anesthesiology, The Stomatology Hospital Affiliated Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Wenwen Zheng
- Department of Anesthesiology, The Stomatology Hospital Affiliated Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Xilu Huang
- Department of Anesthesiology, The Stomatology Hospital Affiliated Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Nan Zhao
- Department of Anesthesiology, The Stomatology Hospital Affiliated Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Guangyou Duan
- Department of Anesthesiology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Cong Yu
- Department of Anesthesiology, The Stomatology Hospital Affiliated Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
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Influences of Ultrasonic Image-Guided Erector Spinae Plane Block on Postoperative Pulmonary Air Content of Lung Carcinoma Patients Undergoing Thoracoscopic Surgery. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:1301361. [PMID: 36110570 PMCID: PMC9470334 DOI: 10.1155/2022/1301361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 06/26/2022] [Accepted: 08/01/2022] [Indexed: 11/18/2022]
Abstract
To investigate the influences of ultrasonic image-guided erector spinae plane block (ESPB) on postoperative pulmonary air content of lung carcinoma patients undergoing thoracoscopic surgery, 42 patients performed with thoracoscopic radical surgery for lung carcinoma were selected. The patients in the experimental group were performed with ultrasound-guided unilateral ESPB and intravenous general anesthesia. The patients in the control group only underwent intravenous anesthesia. The changes in postoperative pulmonary air content between the two groups were compared. After that, all included patients were divided into the experimental (senior) group (13 cases), the experimental (adult) group (8 cases), the control (senior) group (11 cases), and the control (adult) group (10 cases) according to age. The changes in postoperative pulmonary air content of patients in the four groups were compared. The results showed that lung ultrasound score (LUS) of patients in experimental group was
points 0.5 hour after catheter extraction and LUS was
points 20 to 30 hours. Both scores were remarkably lower than those of patients in control group (
). LUS of lower left anterior area, upper left posterior area, lower left posterior area, upper right posterior area, and lower right posterior area of patients in experimental group was all apparently lower than those in control group 0.5 hour after catheter extraction (
). LUS of upper left posterior area, lower left posterior area, lower right anterior area, upper right posterior area, and lower right posterior area of patients in experimental group was all remarkably lower than those in control group 20 to 30 hours after surgery (
). LUS of senile patients and middle-aged patients in experimental group 0.5 hour after catheter extraction was
points and
points, respectively, which were both notably lower than those in control group (
). Ultrasound-guided ESPB exerted fewer influences on lung and could effectively improve postoperative pulmonary air content among patients. Hence, it was worthy of clinical promotion.
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42
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Perioperative Pulmonary Atelectasis: Reply. Anesthesiology 2022; 137:126-127. [PMID: 35486838 PMCID: PMC9870666 DOI: 10.1097/aln.0000000000004232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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43
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Tadros S, Nause-Osthoff R, Haydar B. Anesthetic impacts on pulmonary function: Implications for cystic fibrosis. Paediatr Anaesth 2022; 32:885. [PMID: 35527234 DOI: 10.1111/pan.14462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 04/10/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Sandy Tadros
- Department of Anesthesiology, University of Michigan Medicine, Ann Arbor, Michigan, USA
| | - Rebecca Nause-Osthoff
- Division of Pediatric Anesthesiology, University of Michigan, Ann Arbor, Michigan, USA
| | - Bishr Haydar
- Department of Anesthesiology, University of Michigan, Ann Arbor, Michigan, USA
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45
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Proteomics of lung tissue reveals differences in inflammation and alveolar-capillary barrier response between atelectasis and aerated regions. Sci Rep 2022; 12:7065. [PMID: 35487970 PMCID: PMC9053128 DOI: 10.1038/s41598-022-11045-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 04/14/2022] [Indexed: 11/19/2022] Open
Abstract
Atelectasis is a frequent clinical condition, yet knowledge is limited and controversial on its biological contribution towards lung injury. We assessed the regional proteomics of atelectatic versus normally-aerated lung tissue to test the hypothesis that immune and alveolar-capillary barrier functions are compromised by purely atelectasis and dysregulated by additional systemic inflammation (lipopolysaccharide, LPS). Without LPS, 130 proteins were differentially abundant in atelectasis versus aerated lung, mostly (n = 126) with less abundance together with negatively enriched processes in immune, endothelial and epithelial function, and Hippo signaling pathway. Instead, LPS-exposed atelectasis produced 174 differentially abundant proteins, mostly (n = 108) increased including acute lung injury marker RAGE and chemokine CCL5. Functional analysis indicated enhanced leukocyte processes and negatively enriched cell-matrix adhesion and cell junction assembly with LPS. Additionally, extracellular matrix organization and TGF-β signaling were negatively enriched in atelectasis with decreased adhesive glycoprotein THBS1 regardless of LPS. Concordance of a subset of transcriptomics and proteomics revealed overlap of leukocyte-related gene-protein pairs and processes. Together, proteomics of exclusively atelectasis indicates decreased immune response, which converts into an increased response with LPS. Alveolar-capillary barrier function-related proteomics response is down-regulated in atelectasis irrespective of LPS. Specific proteomics signatures suggest biological mechanistic and therapeutic targets for atelectasis-associated lung injury.
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46
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Yu Y, Wang H, Bao Q, Zhang T, Chen B, Ding J. Sugammadex Versus Neostigmine for Neuromuscular Block Reversal and Postoperative Pulmonary Complications in Patients Undergoing Resection of Lung Cancer. J Cardiothorac Vasc Anesth 2022; 36:3626-3633. [DOI: 10.1053/j.jvca.2022.03.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 03/21/2022] [Accepted: 03/30/2022] [Indexed: 12/24/2022]
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Aydemir D, Malik AN, Kulac I, Basak AN, Lazoglu I, Ulusu NN. Impact of the Amyotrophic Lateral Sclerosis Disease on the Biomechanical Properties and Oxidative Stress Metabolism of the Lung Tissue Correlated With the Human Mutant SOD1G93A Protein Accumulation. Front Bioeng Biotechnol 2022; 10:810243. [PMID: 35284425 PMCID: PMC8914018 DOI: 10.3389/fbioe.2022.810243] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 01/31/2022] [Indexed: 01/19/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is the most common motor neuron disease, and ALS incidence is increasing worldwide. Patients with ALS have respiratory failure at the disease’s end stages, leading to death; thus, the lung is one of the most affected organs during disease progression. Tissue stiffness increases in various lung diseases because of impaired extracellular matrix (ECM) homeostasis leading to tissue damage and dysfunction at the end. According to the literature, oxidative stress is the major contributor to ECM dysregulation, and mutant protein accumulation in ALS have been reported as causative to tissue damage and oxidative stress. In this study, we used SOD1G93A and SOD1WT rats and measured lung stiffness of rats by using a custom-built stretcher, where H&E staining is used to evaluate histopathological changes in the lung tissue. Oxidative stress status of lung tissues was assessed by measuring glucose 6-phosphate dehydrogenase (G6PD), 6-phosphogluconate dehydrogenase (6-PGD), glutathione reductase (GR), glutathione s-transferase (GST), catalase (CAT), and superoxide dismutase 1 (SOD1) levels. Western blot experiments were performed to evaluate the accumulation of the SOD1G93A mutated protein. As a result, increased lung stiffness, decreased antioxidant status, elevated levels of oxidative stress, impaired mineral and trace element homeostasis, and mutated SOD1G93A protein accumulation have been found in the mutated rats even at the earlier stages, which can be possible causative of increased lung stiffness and tissue damage in ALS. Since lung damage has altered at the very early stages, possible therapeutic approaches can be used to treat ALS or improve the life quality of patients with ALS.
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Affiliation(s)
- Duygu Aydemir
- Department of Medical Biochemistry, School of Medicine, Koc University, Istanbul, Turkey
- Koc University Research Center for Translational Medicine (KUTTAM), Istanbul, Turkey
| | - Anjum Naeem Malik
- Manufacturing and Automation Research Center, Department of Mechanical Engineering, Koc University, Istanbul, Turkey
| | - Ibrahim Kulac
- Department of Pathology, Koc University School of Medicine, Istanbul, Turkey
| | - Ayse Nazli Basak
- Suna and İnan Kirac Foundation, Neurodegeneration Research Laboratory, NDAL-KUTTAM, School of Medicine, Koc University, Istanbul, Turkey
| | - Ismail Lazoglu
- Manufacturing and Automation Research Center, Department of Mechanical Engineering, Koc University, Istanbul, Turkey
| | - Nuriye Nuray Ulusu
- Department of Medical Biochemistry, School of Medicine, Koc University, Istanbul, Turkey
- Koc University Research Center for Translational Medicine (KUTTAM), Istanbul, Turkey
- *Correspondence: Nuriye Nuray Ulusu,
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Liu H, Hu J, Zheng Q, Feng X, Zhan F, Wang X, Xu G, Hua F. Piezo1 Channels as Force Sensors in Mechanical Force-Related Chronic Inflammation. Front Immunol 2022; 13:816149. [PMID: 35154133 PMCID: PMC8826255 DOI: 10.3389/fimmu.2022.816149] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/03/2022] [Indexed: 12/14/2022] Open
Abstract
Mechanical damage is one of the predisposing factors of inflammation, and it runs through the entire inflammatory pathological process. Repeated or persistent damaging mechanical irritation leads to chronic inflammatory diseases. The mechanism of how mechanical forces induce inflammation is not fully understood. Piezo1 is a newly discovered mechanically sensitive ion channel. The Piezo1 channel opens in response to mechanical stimuli, transducing mechanical signals into an inflammatory cascade in the cell leading to tissue inflammation. A large amount of evidence shows that Piezo1 plays a vital role in the occurrence and progression of chronic inflammatory diseases. This mini-review briefly presents new evidence that Piezo1 responds to different mechanical stresses to trigger inflammation in various tissues. The discovery of Piezo1 provides new insights for the treatment of chronic inflammatory diseases related to mechanical stress. Inhibiting the transduction of damaging mechanical signals into inflammatory signals can inhibit inflammation and improve the outcome of inflammation at an early stage. The pharmacology of Piezo1 has shown bright prospects. The development of tissue-specific Piezo1 drugs for clinical use may be a new target for treating chronic inflammation.
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Affiliation(s)
- Hailin Liu
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Province Key Laboratory of Molecular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jialing Hu
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Province Key Laboratory of Molecular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Qingcui Zheng
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Province Key Laboratory of Molecular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xiaojin Feng
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Province Key Laboratory of Molecular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Fenfang Zhan
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Province Key Laboratory of Molecular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xifeng Wang
- Key Laboratory of Anesthesiology of Jiangxi Province, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Guohai Xu
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Fuzhou Hua
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, The Second Affiliated Hospital of Nanchang University, Nanchang, China
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49
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Lagier D, Zeng C, Fernandez-Bustamante A, Melo MFV. Perioperative Pulmonary Atelectasis: Part II. Clinical Implications. Anesthesiology 2022; 136:206-236. [PMID: 34710217 PMCID: PMC9885487 DOI: 10.1097/aln.0000000000004009] [Citation(s) in RCA: 50] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The development of pulmonary atelectasis is common in the surgical patient. Pulmonary atelectasis can cause various degrees of gas exchange and respiratory mechanics impairment during and after surgery. In its most serious presentations, lung collapse could contribute to postoperative respiratory insufficiency, pneumonia, and worse overall clinical outcomes. A specific risk assessment is critical to allow clinicians to optimally choose the anesthetic technique, prepare appropriate monitoring, adapt the perioperative plan, and ensure the patient's safety. Bedside diagnosis and management have benefited from recent imaging advancements such as lung ultrasound and electrical impedance tomography, and monitoring such as esophageal manometry. Therapeutic management includes a broad range of interventions aimed at promoting lung recruitment. During general anesthesia, these strategies have consistently demonstrated their effectiveness in improving intraoperative oxygenation and respiratory compliance. Yet these same intraoperative strategies may fail to affect additional postoperative pulmonary outcomes. Specific attention to the postoperative period may be key for such outcome impact of lung expansion. Interventions such as noninvasive positive pressure ventilatory support may be beneficial in specific patients at high risk for pulmonary atelectasis (e.g., obese) or those with clinical presentations consistent with lung collapse (e.g., postoperative hypoxemia after abdominal and cardiothoracic surgeries). Preoperative interventions may open new opportunities to minimize perioperative lung collapse and prevent pulmonary complications. Knowledge of pathophysiologic mechanisms of atelectasis and their consequences in the healthy and diseased lung should provide the basis for current practice and help to stratify and match the intensity of selected interventions to clinical conditions.
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Affiliation(s)
- David Lagier
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Congli Zeng
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Marcos F. Vidal Melo
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
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50
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Jia Q, Yang Y, Chen X, Yao S, Hu Z. Emerging roles of mechanosensitive ion channels in acute lung injury/acute respiratory distress syndrome. Respir Res 2022; 23:366. [PMID: 36539808 PMCID: PMC9764320 DOI: 10.1186/s12931-022-02303-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Acute lung injury/acute respiratory distress syndrome (ALI/ARDS) is a devastating respiratory disorder with high rates of mortality and morbidity, but the detailed underlying mechanisms of ALI/ARDS remain largely unknown. Mechanosensitive ion channels (MSCs), including epithelial sodium channel (ENaC), Piezo channels, transient receptor potential channels (TRPs), and two-pore domain potassium ion (K2P) channels, are highly expressed in lung tissues, and the activity of these MSCs can be modulated by mechanical forces (e.g., mechanical ventilation) and other stimuli (e.g., LPS, hyperoxia). Dysfunction of MSCs has been found in various types of ALI/ARDS, and MSCs play a key role in regulating alveolar fluid clearance, alveolar epithelial/endothelial barrier function, the inflammatory response and surfactant secretion in ALI/ARDS lungs. Targeting MSCs exerts therapeutic effects in the treatment of ALI/ARDS. In this review, we summarize the structure and functions of several well-recognized MSCs, the role of MSCs in the pathogenesis of ALI/ARDS and recent advances in the pharmacological and molecular modulation of MSCs in the treatment of ALI/ARDS. According to the current literature, targeting MSCs might be a very promising therapeutic approach against ALI/ARDS.
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Affiliation(s)
- Qi Jia
- grid.33199.310000 0004 0368 7223Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yiyi Yang
- grid.33199.310000 0004 0368 7223Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiangdong Chen
- grid.33199.310000 0004 0368 7223Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shanglong Yao
- grid.33199.310000 0004 0368 7223Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhiqiang Hu
- grid.33199.310000 0004 0368 7223Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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