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Anania G, Chiozza M, Pedarzani E, Resta G, Campagnaro A, Pedon S, Valpiani G, Silecchia G, Mascagni P, Cuccurullo D, Reddavid R, Azzolina D. Predicting Postoperative Length of Stay in Patients Undergoing Laparoscopic Right Hemicolectomy for Colon Cancer: A Machine Learning Approach Using SICE (Società Italiana di Chirurgia Endoscopica) CoDIG Data. Cancers (Basel) 2024; 16:2857. [PMID: 39199628 PMCID: PMC11352329 DOI: 10.3390/cancers16162857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2024] [Revised: 08/11/2024] [Accepted: 08/12/2024] [Indexed: 09/01/2024] Open
Abstract
The evolution of laparoscopic right hemicolectomy, particularly with complete mesocolic excision (CME) and central vascular ligation (CVL), represents a significant advancement in colon cancer surgery. The CoDIG 1 and CoDIG 2 studies highlighted Italy's progressive approach, providing useful findings for optimizing patient outcomes and procedural efficiency. Within this context, accurately predicting postoperative length of stay (LoS) is crucial for improving resource allocation and patient care, yet its determination through machine learning techniques (MLTs) remains underexplored. This study aimed to harness MLTs to forecast the LoS for patients undergoing right hemicolectomy for colon cancer, using data from the CoDIG 1 (1224 patients) and CoDIG 2 (788 patients) studies. Multiple MLT algorithms, including random forest (RF) and support vector machine (SVM), were trained to predict LoS, with CoDIG 1 data used for internal validation and CoDIG 2 data for external validation. The RF algorithm showed a strong internal validation performance, achieving the best performances and a 0.92 ROC in predicting long-term stays (more than 5 days). External validation using the SVM model demonstrated 75% ROC values. Factors such as fast-track protocols, anastomosis, and drainage emerged as key predictors of LoS. Integrating MLTs into predicting postoperative LOS in colon cancer surgery offers a promising avenue for personalized patient care and improved surgical management. Using intraoperative features in the algorithm enables the profiling of a patient's stay based on the planned intervention. This issue is important for tailoring postoperative care to individual patients and for hospitals to effectively plan and manage long-term stays for more critical procedures.
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Affiliation(s)
- Gabriele Anania
- Department of Medical Science, University of Ferrara, 44121 Ferrara, Italy; (G.A.); (G.R.); (A.C.); (S.P.)
| | - Matteo Chiozza
- Department of Medical Science, University of Ferrara, 44121 Ferrara, Italy; (G.A.); (G.R.); (A.C.); (S.P.)
| | - Emma Pedarzani
- Clinical Trial and Biostatistics, Research and Development Unit, University Hospital of Ferrara, 44121 Ferrara, Italy; (E.P.); (G.V.)
- Unit of Biostatistics, Epidemiology and Public Health, Department of Cardiac Thoracic, Vascular Sciences, University of Padua, 35122 Padua, Italy
| | - Giuseppe Resta
- Department of Medical Science, University of Ferrara, 44121 Ferrara, Italy; (G.A.); (G.R.); (A.C.); (S.P.)
| | - Alberto Campagnaro
- Department of Medical Science, University of Ferrara, 44121 Ferrara, Italy; (G.A.); (G.R.); (A.C.); (S.P.)
| | - Sabrina Pedon
- Department of Medical Science, University of Ferrara, 44121 Ferrara, Italy; (G.A.); (G.R.); (A.C.); (S.P.)
| | - Giorgia Valpiani
- Clinical Trial and Biostatistics, Research and Development Unit, University Hospital of Ferrara, 44121 Ferrara, Italy; (E.P.); (G.V.)
| | - Gianfranco Silecchia
- Department of Scienze Medico Chirurgiche e Medicina Traslazionale, University of Roma, S. Andrea University Hospital, 00189 Rome, Italy;
| | - Pietro Mascagni
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00136 Rome, Italy
- Institute of Image-Guided Surgery, IHU-Strasbourg, 67000 Strasbourg, France;
| | - Diego Cuccurullo
- Division of Laparoscopic and Robotic Surgery Unit, A.O.R.N. dei Colli Monaldi Hospital, 80131 Naples, Italy;
| | - Rossella Reddavid
- Division of Surgical Oncology and Digestive Surgery, Department of Oncology, San Luigi University Hospital, University of Turin, Orbassano, 10043 Turin, Italy;
| | - Danila Azzolina
- Clinical Trial and Biostatistics, Research and Development Unit, University Hospital of Ferrara, 44121 Ferrara, Italy; (E.P.); (G.V.)
- Department of Preventive and Environmental Science, University of Ferrara, 44121 Ferrara, Italy;
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2
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Dinges C, Dienhart C, Gansterer K, Rodemund N, Rezar R, Steindl J, Huttegger R, Kirnbauer M, Kalisnik JM, Kokoefer AS, Demirel O, Seitelberger R, Hoppe UC, Boxhammer E. Beyond the Valve: Incidence, Outcomes, and Modifiable Factors of Acute Kidney Injury in Patients with Infective Endocarditis Undergoing Valve Surgery-A Retrospective, Single-Center Study. J Clin Med 2024; 13:4450. [PMID: 39124718 PMCID: PMC11312431 DOI: 10.3390/jcm13154450] [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: 06/14/2024] [Revised: 07/12/2024] [Accepted: 07/26/2024] [Indexed: 08/12/2024] Open
Abstract
Background/Objectives: Infective endocarditis (IE) often requires surgical intervention, with postoperative acute kidney injury (AKI), posing a significant concern. This retrospective study aimed to investigate AKI incidence, its impact on short-term mortality, and identify modifiable factors in patients with IE scheduled for valve surgery. Methods: This single-center study enrolled 130 consecutive IE patients from 2013 to 2021 undergoing valve surgery. The creatinine levels were monitored pre- and postoperatively, and AKI was defined by Kidney Disease: Improving Global Outcomes (KDIGO) criteria. Patient demographics, comorbidities, procedural details, and complications were recorded. Primary outcomes included AKI incidence; the relevance of creatinine levels for AKI detection; and the association of AKI with 30-, 60-, and 180-day mortality. Modifiable factors contributing to AKI were explored as secondary outcomes. Results: Postoperatively, 35.4% developed AKI. The highest creatinine elevation occurred on the second postoperative day. Best predictive value for AKI was a creatinine level of 1.35 mg/dL on the second day (AUC: 0.901; sensitivity: 0.89, specificity: 0.79). Elevated creatinine levels on the second day were robust predictors for short-term mortality at 30, 60, and 180 days postoperatively (AUC ranging from 0.708 to 0.789). CK-MB levels at 24 h postoperatively and minimum hemoglobin during surgery were identified as independent predictors for AKI in logistic regression. Conclusions: This study highlights the crucial role of creatinine levels in predicting short-term mortality in surgical IE patients. A specific threshold (1.35 mg/dL) provides a practical marker for risk stratification, offering insights for refining perioperative strategies and optimizing outcomes in this challenging patient population.
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Affiliation(s)
- Christian Dinges
- Department of Cardiovascular and Endovascular Surgery, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria
| | - Christiane Dienhart
- Department of Internal Medicine I, Division of Gastroenterology, Hepathology, Nephrology, Metabolism and Diabetology, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria
| | - Katja Gansterer
- Department of Cardiovascular and Endovascular Surgery, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria
| | - Niklas Rodemund
- Department of Anesthesiology, Perioperative Medicine and General Intensive Care Medicine, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria (M.K.)
| | - Richard Rezar
- Department of Internal Medicine II, Division of Cardiology, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria (U.C.H.); (E.B.)
| | - Johannes Steindl
- Department of Cardiovascular and Endovascular Surgery, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria
| | - Raphael Huttegger
- Department of Anesthesiology, Perioperative Medicine and General Intensive Care Medicine, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria (M.K.)
| | - Michael Kirnbauer
- Department of Anesthesiology, Perioperative Medicine and General Intensive Care Medicine, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria (M.K.)
| | - Jurij M. Kalisnik
- Department of Cardiovascular and Thoracic Surgery, Klinikum Klagenfurt, 9020 Klagenfurt, Austria
| | - Andreas S. Kokoefer
- Department of Anesthesiology, Perioperative Medicine and General Intensive Care Medicine, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria (M.K.)
| | - Ozan Demirel
- Department of Internal Medicine II, Division of Cardiology, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria (U.C.H.); (E.B.)
| | - Rainald Seitelberger
- Department of Cardiovascular and Endovascular Surgery, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria
| | - Uta C. Hoppe
- Department of Internal Medicine II, Division of Cardiology, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria (U.C.H.); (E.B.)
| | - Elke Boxhammer
- Department of Internal Medicine II, Division of Cardiology, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria (U.C.H.); (E.B.)
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Chapalain X, Morvan T, Gentric JC, Subileau A, Jacob C, Cadic A, Caillard A, Huet O. Continuous non-invasive vs. invasive arterial blood pressure monitoring during neuroradiological procedure: a comparative, prospective, monocentric, observational study. Perioper Med (Lond) 2024; 13:77. [PMID: 39034414 PMCID: PMC11265173 DOI: 10.1186/s13741-024-00442-3] [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: 01/17/2024] [Accepted: 07/16/2024] [Indexed: 07/23/2024] Open
Abstract
BACKGROUND In the perioperative setting, the most accurate way to continuously measure arterial blood pressure (ABP) is using an arterial catheter. Surrogate methods such as finger cuff have been developed to allow non-invasive measurements and are increasingly used, but need further evaluation. The aim of this study is to evaluate the accuracy and clinical concordance between two devices for the measurement of ABP during neuroradiological procedure. METHODS This is a prospective, monocentric, observational study. All consecutive patients undergoing a neuroradiological procedure were eligible. Patients who needed arterial catheter for blood pressure measurement were included. During neuroradiological procedure, ABP (systolic, mean and diatolic blood pressure) was measured with two different technologies: radial artery catheter and Nexfin. Bland-Altman and error grid analyses were performed to evaluate the accuracy and clinical concordance between devices. RESULTS From March 2022 to November 2022, we included 50 patients, mostly ASA 3 (60%) and required a cerebral embolization (94%) under general anaesthesia (96%). Error grid analysis showed that 99% of non-invasive ABP measures obtained with the Nexfin were located in the risk zone A or B. However, 65.7% of hypertension events and 41% of hypotensive events were respectively not detected by Nexfin. Compared to the artery catheter, a significant relationship was found for SAP (r2 = 0.78) and MAP (r2 = 0.80) with the Nexfin (p < 0.001). Bias and limits of agreement (LOA) were respectively 9.6 mmHg (- 15.6 to 34.8 mmHg) and - 0.8 mmHg (- 17.2 to 15.6 mmHg), for SAP and MAP. CONCLUSIONS Nexfin is not strictly interchangeable with artery catheter for ABP measuring. Further studies are needed to define its clinical use during neuroradiological procedure. TRIAL REGISTRATION Clinicaltrials.gov, registration number: NCT05283824.
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Affiliation(s)
- Xavier Chapalain
- Department of Anesthesiology and Surgical Intensive Care, University and Regional Hospital Centre Brest, Boulevard Tanguy Prigent, Brest, Cedex, 29609, France
- Laboratoire ORPHY, Université de Bretagne Occidentale, Brest, France
| | - Thomas Morvan
- Department of Anesthesiology and Surgical Intensive Care, University and Regional Hospital Centre Brest, Boulevard Tanguy Prigent, Brest, Cedex, 29609, France
| | - Jean-Christophe Gentric
- Department of Neuroradiology, University and Regional Hospital Centre Brest, Brest, France
- Laboratoire GETBO, UMR 1304, Université de Bretagne Occidentale, Brest, France
| | - Aurélie Subileau
- Department of Anesthesiology and Surgical Intensive Care, University and Regional Hospital Centre Brest, Boulevard Tanguy Prigent, Brest, Cedex, 29609, France
| | - Christophe Jacob
- Department of Anesthesiology and Surgical Intensive Care, University and Regional Hospital Centre Brest, Boulevard Tanguy Prigent, Brest, Cedex, 29609, France
| | - Anna Cadic
- Department of Anesthesiology and Surgical Intensive Care, University and Regional Hospital Centre Brest, Boulevard Tanguy Prigent, Brest, Cedex, 29609, France
| | - Anaïs Caillard
- Department of Anesthesiology and Surgical Intensive Care, University and Regional Hospital Centre Brest, Boulevard Tanguy Prigent, Brest, Cedex, 29609, France
| | - Olivier Huet
- Department of Anesthesiology and Surgical Intensive Care, University and Regional Hospital Centre Brest, Boulevard Tanguy Prigent, Brest, Cedex, 29609, France.
- Laboratoire ORPHY, Université de Bretagne Occidentale, Brest, France.
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Lobo SM, Junior JMDS, Malbouisson LM. Improving perioperative care in low-resource settings with goal-directed therapy: a narrative review. BRAZILIAN JOURNAL OF ANESTHESIOLOGY (ELSEVIER) 2024; 74:744460. [PMID: 37648078 DOI: 10.1016/j.bjane.2023.08.004] [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: 04/17/2023] [Revised: 08/04/2023] [Accepted: 08/20/2023] [Indexed: 09/01/2023]
Abstract
Perioperative Goal-Directed Therapy (PGDT) has significantly showed to decrease complications and risk of death in high-risk patients according to numerous meta-analyses. The main goal of PGDT is to individualize the therapy with fluids, inotropes, and vasopressors, during and after surgery, according to patients' needs in order to prevent organic dysfunction development. In this opinion paper we aimed to focus a discussion on possible alternatives to invasive hemodynamic monitoring in low resource settings.
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Affiliation(s)
- Suzana Margareth Lobo
- Faculdade de Medicina de São José do Rio Preto (FAMERP), São José do Rio Preto, SP, Brazil.
| | - João Manoel da Silva Junior
- Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
| | - Luiz Marcelo Malbouisson
- Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
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Monge García MI, Jiménez López I, Lorente Olazábal JV, García López D, Fernández López AR, Pérez Carbonell A, Ripollés Melchor J. Postoperative arterial hypotension: the unnoticed enemy. REVISTA ESPANOLA DE ANESTESIOLOGIA Y REANIMACION 2023; 70:575-579. [PMID: 37652202 DOI: 10.1016/j.redare.2022.10.009] [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: 05/16/2022] [Accepted: 10/17/2022] [Indexed: 09/02/2023]
Abstract
Postoperative hypotension is a frequently underestimated health problem associated with high morbidity and mortality and increased use of health care resources. It also poses significant clinical, technological, and human challenges for healthcare. As it is a modifiable and avoidable risk factor, this document aims to increase its visibility, defining its clinical impact and the technological challenges involved in optimizing its management, taking clinical-technological, humanistic, and economic aspects into account.
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Affiliation(s)
- M I Monge García
- Hospital Universitario SAS Jerez, Jerez de la Frontera, Cádiz, Spain.
| | | | | | - D García López
- Hospital Universitario Marqués de Valdecilla, Santander, Spain
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Matsuura R, Komaru Y, Hamasaki Y, Nangaku M, Doi K. BENEFIT OF HIGHER BLOOD PRESSURE TARGET IN SEVERE ACUTE KIDNEY INJURY TREATED BY CONTINUOUS RENAL REPLACEMENT THERAPY. Shock 2023; 60:534-538. [PMID: 37625112 DOI: 10.1097/shk.0000000000002207] [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: 08/27/2023]
Abstract
ABSTRACT Introduction : The optimal target of mean arterial pressure (MAP) during continuous renal replacement therapy (CRRT) is unknown. Method : We retrospectively collected the hourly MAP data in acute kidney injury patients requiring CRRT who admitted to the intensive care unit in the University of Tokyo hospital during 2011-2019. Patients who died within 48 h of CRRT start and whose average value of hourly MAPs during the first 48 h was <65 mm Hg were excluded. When the average value of MAP was ≤75 mm Hg or >75 mm Hg, patients were allocated to the low or high target group. We estimated the effect of MAP on mortality and RRT independence at 90 days, using multivariable the Cox regression model and Fine and Gray model. Result : Of the 275 patients we analyzed, 95 patients were in the low group. There are no differences in sex, baseline kidney function, and disease severity. At 90 days, the low target group had higher mortality with 38 deaths (40.0%) compared with 57 deaths (31.7%) in the high target group ( P < 0.05). The adjusted hazard ratio of the low target group (≤75 mm Hg) for mortality was 1.72 (95% CI, 1.08-2.74). In addition, the low target group had a lower rate of RRT independence, with 60 patients (63.2%) compared with 136 patients (75.6%) in the high target group ( P < 0.05). The multivariable analysis revealed that the adjusted hazard ratio of the low target group for RRT independence was 0.74 (95% CI, 0.54-1.01). Conclusion : This study found the association with low MAP and mortality. The association with low MAP and delayed renal recovery was not revealed.
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Affiliation(s)
- Ryo Matsuura
- Department of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo, Japan
| | - Yohei Komaru
- Department of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo, Japan
| | - Yoshifumi Hamasaki
- Department of Hemodialysis and Apheresis, The University of Tokyo Hospital, Tokyo, Japan
| | - Masaomi Nangaku
- Department of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo, Japan
| | - Kent Doi
- Department of Emergency and Critical Care Medicine, The University of Tokyo Hospital, Tokyo, Japan
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Middel C, Stetzuhn M, Sander N, Kalkbrenner B, Tigges T, Pielmus AG, Spies C, Pietzner K, Klum M, von Haefen C, Hunsicker O, Sehouli J, Konietschke F, Feldheiser A. Perioperative advanced haemodynamic monitoring of patients undergoing multivisceral debulking surgery: an observational pilot study. Intensive Care Med Exp 2023; 11:61. [PMID: 37682496 PMCID: PMC10491568 DOI: 10.1186/s40635-023-00543-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 08/23/2023] [Indexed: 09/09/2023] Open
Abstract
BACKGROUND Patients undergoing high-risk surgery show haemodynamic instability and an increased risk of morbidity. However, most of the available data concentrate on the intraoperative period. This study aims to characterise patients with advanced haemodynamic monitoring throughout the whole perioperative period using electrical cardiometry. METHODS In a prospective, observational, monocentric pilot study, electrical cardiometry measurements were obtained using an Osypka ICON™ monitor before surgery, during surgery, and repeatedly throughout the hospital stay for 30 patients with primary ovarian cancer undergoing multivisceral cytoreductive surgery. Severe postoperative complications according to the Clavien-Dindo classification were used as a grouping criterion. RESULTS The relative change from the baseline to the first intraoperative timepoint showed a reduced heart rate (HR, median - 19 [25-quartile - 26%; 75-quartile - 10%]%, p < 0.0001), stroke volume index (SVI, - 9.5 [- 15.3; 3.2]%, p = 0.0038), cardiac index (CI, - 24.5 [- 32; - 13]%, p < 0.0001) and index of contractility (- 17.5 [- 35.3; - 0.8]%, p < 0.0001). Throughout the perioperative course, patients had intraoperatively a reduced HR and CI (both p < 0.0001) and postoperatively an increased HR (p < 0.0001) and CI (p = 0.016), whereas SVI was unchanged. Thoracic fluid volume increased continuously versus preoperative values and did not normalise up to the day of discharge. Patients having postoperative complications showed a lower index of contractility (p = 0.0435) and a higher systolic time ratio (p = 0.0008) over the perioperative course in comparison to patients without complications, whereas the CI (p = 0.3337) was comparable between groups. One patient had to be excluded from data analysis for not receiving the planned surgery. CONCLUSIONS Substantial decreases in HR, SVI, CI, and index of contractility occurred from the day before surgery to the first intraoperative timepoint. HR and CI were altered throughout the perioperative course. Patients with postoperative complications differed from patients without complications in the markers of cardiac function, a lower index of contractility and a lower SVI. The analyses of trends over the whole perioperative time course by using non-invasive technologies like EC seem to be useful to identify patients with altered haemodynamic parameters and therefore at an increased risk for postoperative complications after major surgery.
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Affiliation(s)
- Charlotte Middel
- Department of Anaesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité, Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität Zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Matthias Stetzuhn
- Department of Anaesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité, Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität Zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Nadine Sander
- Department of Anaesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité, Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität Zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Björn Kalkbrenner
- Department of Anaesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité, Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität Zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Timo Tigges
- Department of Electronics and Medical Signal Processing, Technical University, Berlin, Germany
| | | | - Claudia Spies
- Department of Anaesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité, Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität Zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Klaus Pietzner
- Department of Gynaecology With Center for Oncological Surgery, Campus Virchow Klinikum, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Michael Klum
- Department of Electronics and Medical Signal Processing, Technical University, Berlin, Germany
| | - Clarissa von Haefen
- Department of Anaesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité, Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität Zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Oliver Hunsicker
- Department of Anaesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité, Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität Zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Jalid Sehouli
- Department of Gynaecology With Center for Oncological Surgery, Campus Virchow Klinikum, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Frank Konietschke
- Institute of Biometry and Clinical Epidemiology, Charité, Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität Zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Aarne Feldheiser
- Department of Anaesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité, Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität Zu Berlin, and Berlin Institute of Health, Berlin, Germany.
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, Evangelische Kliniken Essen-Mitte, Huyssens-Stiftung/Knappschaft, 45136, Essen, Germany.
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Al-Tekreeti M, Addi Palle LR, Asif H, Amin MF, Anam H, Akurathi Y, Batool S, Ali N. Comparison of Postoperative Outcomes Between Intra-aortic Balloon Pump and Levosimendan in Patients Undergoing Coronary Artery Bypass Graft: A Systematic Review and Meta-Analysis. Cureus 2023; 15:e43627. [PMID: 37719499 PMCID: PMC10504856 DOI: 10.7759/cureus.43627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/17/2023] [Indexed: 09/19/2023] Open
Abstract
This study was conducted to compare the postoperative outcomes between intra-aortic balloon pump (IABP) and levosimendan in patients undergoing coronary artery bypass graft (CABG) surgery. This meta-analysis was conducted following the recommendations of Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). For this meta-analysis, a literature search was performed on PubMed, Cochrane Central Register of Controlled Trials, and EMBASE from inception to July 15, 2023. Keywords used to search for relevant articles included "intra-aortic balloon," "levosimendan," and "cardiac surgery" along with their key terms and Medical Subject Headings (MeSH) terms. Outcomes assessed in this study included postoperative outcomes like all-cause mortality, postoperative arrhythmias, need for inotropic support, length of intensive care unit stay (ICU) in days, and duration of mechanical ventilation in hours. Other outcomes included two-hour, six-hour, and 24-hour postoperative central venous pressure (CVP), mean atrial pressure (MAP), and heart rate (HR). A total of eight studies were included in the pooled analysis. The pooled results found that the length of ICU stay and the duration of mechanical ventilation were significantly higher in patients receiving IABP. Additionally, the findings of this meta-analysis showed a higher need for inotropic support in patients receiving IABP compared to patients receiving levosimendan but the difference was statistically insignificant. However, no significant differences were found between the two groups in terms of mortality and arrhythmias. In conclusion, patients treated with levosimendan exhibited significant advantages, as they experienced shorter ICU stays and reduced duration of mechanical ventilation compared to the IABP group and less requirement for inotropic support.
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Affiliation(s)
- Marwah Al-Tekreeti
- Internal Medicine, Avalon University School of Medicine, Willemstad, CUW
| | - Lokeshwar Raaju Addi Palle
- Surgery, Kamala Children's Hospital, Chennai, IND
- General Surgery, Hackensack Meridian Health - Palisades Medical Center, North Bergen, USA
| | - Hamza Asif
- Pulmonology, Khyber Teaching Hospital, Peshawar, PAK
| | - Muhammad Fahad Amin
- Medicine, Ghurki Trust Teaching Hospital, Lahore, PAK
- Medicine, Jinnah Hospital, Lahore, PAK
| | - Hemalatha Anam
- Medicine, Apollo Institute of Medical Sciences and Research, Hyderabad, IND
| | | | - Saima Batool
- Internal Medicine, Hameed Latif Hospital, Lahore, PAK
| | - Neelum Ali
- Internal Medicine, University of Health Sciences, Lahore, PAK
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Desebbe O, Vallier S, Gergelé L, Alexander B, Marx A, Ben Jaoude E, Kato H, Toubal L, Berna A, Duranteau J, Vincent JL, Joosten A. Diagnostic accuracy of the peripheral venous pressure variation induced by an alveolar recruitment maneuver to predict fluid responsiveness during high-risk abdominal surgery. BMC Anesthesiol 2023; 23:249. [PMID: 37481588 PMCID: PMC10362688 DOI: 10.1186/s12871-023-02194-x] [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: 11/26/2022] [Accepted: 07/01/2023] [Indexed: 07/24/2023] Open
Abstract
BACKGROUND In patients undergoing high-risk surgery, it is recommended to titrate fluid administration using stroke volume or a dynamic variable of fluid responsiveness (FR). However, this strategy usually requires the use of a hemodynamic monitor and/or an arterial catheter. Recently, it has been shown that variations of central venous pressure (ΔCVP) during an alveolar recruitment maneuver (ARM) can predict FR and that there is a correlation between CVP and peripheral venous pressure (PVP). This prospective study tested the hypothesis that variations of PVP (ΔPVP) induced by an ARM could predict FR. METHODS We studied 60 consecutive patients scheduled for high-risk abdominal surgery, excluding those with preoperative cardiac arrhythmias or right ventricular dysfunction. All patients had a peripheral venous catheter, a central venous catheter and a radial arterial catheter linked to a pulse contour monitoring device. PVP was always measured via an 18-gauge catheter inserted at the antecubital fossa. Then an ARM consisting of a standardized gas insufflation to reach a plateau of 30 cmH2O for 30 s was performed before skin incision. Invasive mean arterial pressure (MAP), pulse pressure, heart rate, CVP, PVP, pulse pressure variation (PPV), and stroke volume index (SVI) were recorded before ARM (T1), at the end of ARM (T2), before volume expansion (T3), and one minute after volume expansion (T4). Receiver-operating curves (ROC) analysis with the corresponding grey zone approach were performed to assess the ability of ∆PVP (index test) to predict FR, defined as an ≥ 10% increase in SVI following the administration of a 4 ml/kg balanced crystalloid solution over 5 min. RESULTS ∆PVP during ARM predicted FR with an area under the ROC curve of 0.76 (95%CI, 0.63 to 0.86). The optimal threshold determined by the Youden Index was a ∆PVP value of 5 mmHg (95%CI, 4 to 6) with a sensitivity of 66% (95%CI, 47 to 81) and a specificity of 82% (95%CI, 63 to 94). The AUC's for predicting FR were not different between ΔPVP, ΔCVP, and PPV. CONCLUSION During high-risk abdominal surgery, ∆PVP induced by an ARM can moderately predict FR. Nevertheless, other hemodynamic variables did not perform better.
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Affiliation(s)
- Olivier Desebbe
- Department of Anesthesiology and Perioperative Medicine, Sauvegarde Clinic, Ramsay Sante, Lyon, France
| | - Sylvain Vallier
- Department of Anesthesiology and Intensive Care, Elsan Alpes-Belledonne Clinic, Grenoble, France
| | - Laurent Gergelé
- Department of Anesthesiology and Intensive Care, Ramsay Sante HPL Clinic, Saint-Etienne, France
| | - Brenton Alexander
- Department of Anesthesiology, University of California San Diego, La Jolla, CA, USA
| | - Alexandre Marx
- Department of Anesthesiology, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Elias Ben Jaoude
- Department of Anesthesiology and Intensive Care, Université Paris-Sud, Paul Brousse Hospital, Assistance Publique Hôpitaux de Paris (APHP), 12 Avenue Paul Vaillant Couturier, Villejuif, 94800, France
| | - Hiromi Kato
- Department of Anesthesiology and Intensive Care, Université Paris-Sud, Paul Brousse Hospital, Assistance Publique Hôpitaux de Paris (APHP), 12 Avenue Paul Vaillant Couturier, Villejuif, 94800, France
| | - Leila Toubal
- Department of Anesthesiology and Intensive Care, Université Paris-Sud, Paul Brousse Hospital, Assistance Publique Hôpitaux de Paris (APHP), 12 Avenue Paul Vaillant Couturier, Villejuif, 94800, France
| | - Antoine Berna
- Department of Anesthesiology and Perioperative Medicine, Sauvegarde Clinic, Ramsay Sante, Lyon, France
| | - Jacques Duranteau
- Department of Anesthesiology and Intensive Care, Université Paris-Sud, Paul Brousse Hospital, Assistance Publique Hôpitaux de Paris (APHP), 12 Avenue Paul Vaillant Couturier, Villejuif, 94800, France
| | - Jean-Louis Vincent
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Alexandre Joosten
- Department of Anesthesiology and Intensive Care, Université Paris-Sud, Paul Brousse Hospital, Assistance Publique Hôpitaux de Paris (APHP), 12 Avenue Paul Vaillant Couturier, Villejuif, 94800, France.
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10
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Tran PNT, Kusirisin P, Kaewdoungtien P, Phannajit J, Srisawat N. Higher blood pressure versus normotension targets to prevent acute kidney injury: a systematic review and meta-regression of randomized controlled trials. Crit Care 2022; 26:364. [PMID: 36434726 PMCID: PMC9700976 DOI: 10.1186/s13054-022-04236-1] [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: 09/07/2022] [Accepted: 11/10/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Renal hypoperfusion is one of the most common causes of acute kidney injury (AKI), especially in shock and perioperative patients. An optimal blood pressure (BP) target to prevent AKI remains undetermined. We conducted a systematic review and meta-analysis of available randomized clinical trial (RCT) results to address this knowledge gap. METHODS From inception to May 13, 2022, we searched Ovid Medline, EMBASE, Cochrane Library, SCOPUS, clinicaltrials.gov, and WHO ICTRP for RCTs comparing higher BP target versus normotension in hemodynamically unstable patients (shock, post-cardiac arrest, or surgery patients). The outcomes of interest were post-intervention AKI rate and renal replacement therapy (RRT) rate. Two investigators independently screened the citations and reviewed the full texts for eligible studies according to a predefined form. RESULTS Twelve trials were included, enrolling a total of 5759 participants, with shock, non-cardiac, and cardiac surgery patients accounting for 3282 (57.0%), 1687 (29.3%) and 790 (13.7%) patients, respectively. Compared to lower mean arterial blood pressure (MAP) targets that served as normotension, targeting higher MAP had no significant effect on AKI rates in shock (RR [95% CI] = 1.10 [0.93, 1.29]), in cardiac-surgery (RR [95% CI] = 0.87 [0.73, 1.03]) and non-cardiac surgery patients (RR [95% CI] = 1.25 [0.98, 1.60]) using random-effects meta-analyses. In shock patients with premorbid hypertension, however, targeting MAP above 70 mmHg resulted in significantly lower RRT risks, RR [95%CI] = 1.20 [1.03, 1.41], p < 0.05. CONCLUSIONS Targeting a higher MAP in shock or perioperative patients may not be superior to normotension, except in shock patients with premorbid hypertension. Further studies are needed to assess the effects of a high MAP target to preventing AKI in hypertensive patients across common settings of hemodynamic instability. Trial registration This systematic review has been registered on PROSPERO ( CRD42021286203 ) on November 19, 2021, prior to data extraction and analysis.
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Affiliation(s)
- Phu Nguyen Trong Tran
- grid.7922.e0000 0001 0244 7875Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand ,grid.411628.80000 0000 9758 8584Excellence Center for Critical Care Nephrology, King Chulalongkorn Memorial Hospital, Bangkok, Thailand ,grid.413054.70000 0004 0468 9247Department of Internal Medicine, Faculty of Medicine, Can Tho University of Medicine and Pharmacy, Cantho, Vietnam
| | - Prit Kusirisin
- grid.7922.e0000 0001 0244 7875Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand ,grid.411628.80000 0000 9758 8584Excellence Center for Critical Care Nephrology, King Chulalongkorn Memorial Hospital, Bangkok, Thailand ,grid.7922.e0000 0001 0244 7875Center of Excellence in Critical Care Nephrology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand ,grid.7132.70000 0000 9039 7662Division of Nephrology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Piyanut Kaewdoungtien
- grid.7922.e0000 0001 0244 7875Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand ,grid.411628.80000 0000 9758 8584Excellence Center for Critical Care Nephrology, King Chulalongkorn Memorial Hospital, Bangkok, Thailand ,grid.7922.e0000 0001 0244 7875Center of Excellence in Critical Care Nephrology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand ,grid.415092.b0000 0004 0576 2645Division of Nephrology, Police General Hospital, Royal Thai Police Headquarters, Bangkok, Thailand
| | - Jeerath Phannajit
- grid.7922.e0000 0001 0244 7875Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand ,grid.7922.e0000 0001 0244 7875Division of Clinical Epidemiology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Nattachai Srisawat
- grid.7922.e0000 0001 0244 7875Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand ,grid.411628.80000 0000 9758 8584Excellence Center for Critical Care Nephrology, King Chulalongkorn Memorial Hospital, Bangkok, Thailand ,grid.7922.e0000 0001 0244 7875Center of Excellence in Critical Care Nephrology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand ,grid.512985.2Academy of Science, Royal Society of Thailand, Bangkok, Thailand
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11
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The Impact of Individualized Hemodynamic Management on Intraoperative Fluid Balance and Hemodynamic Interventions during Spine Surgery in the Prone Position: A Prospective Randomized Trial. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:medicina58111683. [PMID: 36422222 PMCID: PMC9698539 DOI: 10.3390/medicina58111683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 11/07/2022] [Accepted: 11/17/2022] [Indexed: 11/22/2022]
Abstract
Background and Objectives: The effect of individualized hemodynamic management on the intraoperative use of fluids and other hemodynamic interventions in patients undergoing spinal surgery in the prone position is controversial. This study aimed to evaluate how the use of individualized hemodynamic management based on extended continuous non-invasive hemodynamic monitoring modifies intraoperative hemodynamic interventions compared to conventional hemodynamic monitoring with intermittent non-invasive blood pressure measurements. Methods: Fifty adult patients (American Society of Anesthesiologists physical status I−III) who underwent spinal procedures in the prone position and were then managed with a restrictive fluid strategy were prospectively randomized into intervention and control groups. In the intervention group, individualized hemodynamic management followed a goal-directed protocol based on continuously non-invasively measured blood pressure, heart rate, cardiac output, systemic vascular resistance, and stroke volume variation. In the control group, patients were monitored using intermittent non-invasive blood pressure monitoring, and the choice of hemodynamic intervention was left to the discretion of the attending anesthesiologist. Results: In the intervention group, more hypotensive episodes (3 (2−4) vs. 1 (0−2), p = 0.0001), higher intraoperative dose of ephedrine (0 (0−10) vs. 0 (0−0) mg, p = 0.0008), and more positive fluid balance (680 (510−937) vs. 270 (196−377) ml, p < 0.0001) were recorded. Intraoperative norepinephrine dose and postoperative outcomes did not differ between the groups. Conclusions: Individualized hemodynamic management based on data from extended non-invasive hemodynamic monitoring significantly modified intraoperative hemodynamic management and was associated with a higher number of hemodynamic interventions and a more positive fluid balance.
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12
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Porsche R, Steinhardt F, Knoerlein J, Schick MA. Phenylephrine versus cafedrine/theodrenaline (Akrinor) for the treatment of spinal anaesthesia-induced maternal hypotension during caesarean section: a retrospective single-centre cohort study. BMJ Open 2022; 12:e062512. [PMID: 36385024 PMCID: PMC9670961 DOI: 10.1136/bmjopen-2022-062512] [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] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE The main objective of this study was to assess the impact of phenylephrine and cafedrine/theodrenaline on the mother and newborn after spinal anaesthesia for caesarean section. SETTING University teaching hospital. DESIGN A single-centre retrospective data cohort study. PATIENTS All obstetric patients who were scheduled for caesarean section in a 2-year period. INTERVENTIONS Administration of either intravenous phenylephrine prophylactically or cafedrine/theodrenaline (Akrinor) reactively to maintain blood pressure after spinal anaesthesia. MAIN OUTCOME MEASURE Maternal hypotension, heart rate during caesarean section and after admission to IMC, fetal arterial cord pH and base excess levels, maternal volume resuscitation and the use of rescue medication. RESULTS 852 data sets could be included: n=440 Akrinor, n=412 in the phenylephrine cohort. During caesarean section blood pressure was slightly higher in the phenylephrine group compared with the Akrinor group, while hypotension <100 mm Hg systolic blood pressure (SBP) occurred significantly more often during arrival at the IMC after surgery when phenylephrine was used. Heart rate was lower and rescue medication was significantly more frequently given in the phenylephrine cohort. Irrespective of the medication used, women with baseline levels of <120 mm Hg SBP had a high risk to develop hypotension <100 mm Hg after spinal anaesthesia for caesarean section. While there was no statistical difference in mean umbilical arterial pH levels, the incidence of acidosis, defined as pH <7.2, was significantly higher with phenylephrine. CONCLUSION Phenylephrine was not superior to Akrinor to treat spinal anaesthesia-induced maternal hypotension during caesarean section. TRIAL REGISTRATION NUMBER DRKS00025795.
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Affiliation(s)
- Raphael Porsche
- Department of Anesthesiology and Critical Care, Medical Center-University of Freiburg, Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Frederic Steinhardt
- Department of Anesthesiology and Critical Care, Medical Center-University of Freiburg, Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Julian Knoerlein
- Department of Anesthesiology and Critical Care, Medical Center-University of Freiburg, Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Martin Alexander Schick
- Department of Anesthesiology and Critical Care, Medical Center-University of Freiburg, Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
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13
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Nasa P, Wise R, Elbers PWG, Wong A, Dabrowski W, Regenmortel NV, Monnet X, Myatra SN, Malbrain MLNG. Intravenous fluid therapy in perioperative and critical care setting-Knowledge test and practice: An international cross-sectional survey. J Crit Care 2022; 71:154122. [PMID: 35908420 DOI: 10.1016/j.jcrc.2022.154122] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/04/2022] [Accepted: 07/15/2022] [Indexed: 02/07/2023]
Abstract
PURPOSE In the absence of recent international recommendations supported by scientific societies like Anesthesiology or Intensive Care Medicine, healthcare professionals (HCP) knowledge on IV fluid is expected to vary. We undertook a cross-sectional survey, aiming to assess prescription patterns and test the knowledge of HCP for IV fluid use in the operating room (OR) and intensive care unit (ICU). METHODS An online international cross-sectional survey was conducted between October 20, 2019, and November 27, 2021. The survey included multiple-choice questions on demographics, practice patterns and knowledge of IV fluids, and a hemodynamically unstable patient assessment. RESULTS 1045 HCP, from 97 countries responded to the survey. Nearly three-quarters reported the non-existence of internal hospital or ICU-based guidelines on IV fluids. The respondents' mean score on the knowledge assessment questions was 46.4 ± 14.4. The cumulative mean scores were significantly higher among those supervising trainees (p = 0.02), specialists (p < 0.001) and those working in high-income (p < 0.001) countries. Overall performance of respondents on the knowledge testing for IV fluid was unsatisfactory with only 6.5% respondents performed above average. CONCLUSION There is a wide difference in the knowledge and prescription of IV fluids among the HCP surveyed. These findings reflect the urgent need for education on IV fluids.
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Affiliation(s)
| | - Robert Wise
- Vrije Universiteit Brussel, Brussels, Belgium; School of Clinical Medicine, University of KwaZulu-Natal, Durban, South Africa; Adult Intensive Care, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
| | - Paul W G Elbers
- Amsterdam UMC, Vrije Universiteit, Amsterdam, the Netherlands
| | - Adrian Wong
- King's College Hospital, London, United Kingdom
| | - Wojciech Dabrowski
- First Department of Anaesthesiology and Intensive Therapy, Medical University of Lublin, Poland
| | - Niels V Regenmortel
- Intensive Care Unit, Ziekenhuis Netwerk Antwerpen, ZNA Stuivenberg, Antwerp, Belgium
| | - Xavier Monnet
- 1AP-HP, Service de Médecine Intensive-réanimation, Hôpital de Bicêtre, DMU 4 CORREVE, Inserm UMR S_999, FHU SEPSIS, CARMAS, Université Paris-Saclay, 78 rue du Général Leclerc, 94270, Le Kremlin-Bicêtre, France
| | - Sheila N Myatra
- Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, India
| | - Manu L N G Malbrain
- First Department of Anaesthesiology and Intensive Therapy, Medical University of Lublin, Poland.
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14
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Behem CR, Haunschild J, Pinnschmidt HO, Gaeth C, Graessler MF, Trepte CJC, Etz CD, Debus ES, Wipper SH. Effects of fluids vs. vasopressors on spinal cord microperfusion in hemorrhagic shock induced ischemia/reperfusion. Microvasc Res 2022; 143:104383. [PMID: 35605693 DOI: 10.1016/j.mvr.2022.104383] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 05/13/2022] [Accepted: 05/17/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Spinal cord injury induced by ischemia/reperfusion is a devastating complication of aortic repair. Despite developments for prevention and treatment of spinal cord injury, incidence is still considerably high majorly impacting patient outcome. Microcirculation is paramount for tissue perfusion and oxygen supply and often dissociated from macrohemodynamic parameters used to guide resuscitation. Effects of fluids vs. vasopressors in the setting of hemodynamic resuscitation on spinal cord microperfusion are unknown. Aim of this study was to compare the effects of vasopressor and fluid resuscitation on spinal cord microperfusion in a translational acute pig model of hemorrhagic shock induced ischemia/reperfusion injury. METHODS We designed this study as prospective randomized explorative large animal study. We induced hemorrhagic shock in 20 pigs as a model of global ischemia/reperfusion injury. We randomized animals to receive either fluid or vasopressor resuscitation. We measured spinal cord microperfusion using fluorescent microspheres as well as laser-Doppler probes. We monitored and analyzed macrohemodynamic parameters and cerebrospinal fluid pressure. RESULTS Spinal cord microperfusion decreased following hemorrhagic shock induced ischemia/reperfusion injury. Both fluids and vasopressors sufficiently restored spinal cord microperfusion. There were no important changes between groups (percentage changes compared to baseline: fluids 14.0 (0.31-27.6) vs. vasopressors 24.3 (8.12-40.4), p = .340). However, cerebrospinal fluid pressure was higher in animals receiving fluid resuscitation (percentage changes compared to baseline: fluids 27.7 (12.6-42.8) vs. vasopressors -5.56 ((-19.8)-8.72), p = .003). Microcirculatory resuscitation was in line with improvements of macrohemodynamic parameters. CONCLUSIONS Both, fluids and vasopressors, equally restored spinal cord microperfusion in a porcine acute model of hemorrhagic shock induced ischemia/reperfusion injury. However, significant differences in cerebrospinal fluid pressure following resuscitation were present. Future studies should evaluate these effects in perfusion disruption induced ischemia/reperfusion conditions of microcirculatory deterioration.
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Affiliation(s)
- Christoph R Behem
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Josephina Haunschild
- University Department for Cardiac Surgery, Heart Center Leipzig, Leipzig, Germany
| | - Hans O Pinnschmidt
- Department of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Catharina Gaeth
- Department of Vascular Medicine, University Heart and Vascular Center Hamburg (UHZ), Hamburg, Germany
| | - Michael F Graessler
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Constantin J C Trepte
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christian D Etz
- University Department for Cardiac Surgery, Heart Center Leipzig, Leipzig, Germany
| | - E Sebastian Debus
- Department of Vascular Medicine, University Heart and Vascular Center Hamburg (UHZ), Hamburg, Germany
| | - Sabine H Wipper
- Department of Vascular Medicine, University Heart and Vascular Center Hamburg (UHZ), Hamburg, Germany
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15
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Pilarczyk K, Haneya A, Panholzer B. Hämodynamisches Monitoring nach herzchirurgischem Eingriff. ZEITSCHRIFT FUR HERZ THORAX UND GEFASSCHIRURGIE 2022. [DOI: 10.1007/s00398-022-00517-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Song Q, Li J, Jiang Z. Provisional Decision-Making for Perioperative Blood Pressure Management: A Narrative Review. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5916040. [PMID: 35860431 PMCID: PMC9293529 DOI: 10.1155/2022/5916040] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 06/21/2022] [Accepted: 06/24/2022] [Indexed: 11/21/2022]
Abstract
Blood pressure (BP) is a basic determinant for organ blood flow supply. Insufficient blood supply will cause tissue hypoxia, provoke cellular oxidative stress, and to some extent lead to organ injury. Perioperative BP is labile and dynamic, and intraoperative hypotension is common. It is unclear whether there is a causal relationship between intraoperative hypotension and organ injury. However, hypotension surely compromises perfusion and causes harm to some extent. Because the harm threshold remains unknown, various guidelines for intraoperative BP management have been proposed. With the pending definitions from robust randomized trials, it is reasonable to consider observational analyses suggesting that mean arterial pressures below 65 mmHg sustained for more than 15 minutes are associated with myocardial and renal injury. Advances in machine learning and artificial intelligence may facilitate the management of hemodynamics globally, including fluid administration, rather than BP alone. The previous mounting studies concentrated on associations between BP targets and adverse complications, whereas few studies were concerned about how to treat and multiple factors for decision-making. Hence, in this narrative review, we discussed the way of BP measurement and current knowledge about baseline BP extracting for surgical patients, highlighted the decision-making process for BP management with a view to providing pragmatic guidance for BP treatment in the clinical settings, and evaluated the merits of an automated blood control system in predicting hypotension.
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Affiliation(s)
- Qiliang Song
- Department of Anesthesiology, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, 312000 Zhejiang Province, China
| | - Jipeng Li
- Department of Anesthesiology, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, 312000 Zhejiang Province, China
| | - Zongming Jiang
- Department of Anesthesiology, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, 312000 Zhejiang Province, China
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Monnet X, Shi R, Teboul JL. Prediction of fluid responsiveness. What’s new? Ann Intensive Care 2022; 12:46. [PMID: 35633423 PMCID: PMC9148319 DOI: 10.1186/s13613-022-01022-8] [Citation(s) in RCA: 71] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 05/09/2022] [Indexed: 02/07/2023] Open
Abstract
AbstractAlthough the administration of fluid is the first treatment considered in almost all cases of circulatory failure, this therapeutic option poses two essential problems: the increase in cardiac output induced by a bolus of fluid is inconstant, and the deleterious effects of fluid overload are now clearly demonstrated. This is why many tests and indices have been developed to detect preload dependence and predict fluid responsiveness. In this review, we take stock of the data published in the field over the past three years. Regarding the passive leg raising test, we detail the different stroke volume surrogates that have recently been described to measure its effects using minimally invasive and easily accessible methods. We review the limits of the test, especially in patients with intra-abdominal hypertension. Regarding the end-expiratory occlusion test, we also present recent investigations that have sought to measure its effects without an invasive measurement of cardiac output. Although the limits of interpretation of the respiratory variation of pulse pressure and of the diameter of the vena cava during mechanical ventilation are now well known, several recent studies have shown how changes in pulse pressure variation itself during other tests reflect simultaneous changes in cardiac output, allowing these tests to be carried out without its direct measurement. This is particularly the case during the tidal volume challenge, a relatively recent test whose reliability is increasingly well established. The mini-fluid challenge has the advantage of being easy to perform, but it requires direct measurement of cardiac output, like the classic fluid challenge. Initially described with echocardiography, recent studies have investigated other means of judging its effects. We highlight the problem of their precision, which is necessary to evidence small changes in cardiac output. Finally, we point out other tests that have appeared more recently, such as the Trendelenburg manoeuvre, a potentially interesting alternative for patients in the prone position.
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18
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Advances in Neuroimaging and Monitoring to Defend Cerebral Perfusion in Noncardiac Surgery. Anesthesiology 2022; 136:1015-1038. [PMID: 35482943 DOI: 10.1097/aln.0000000000004205] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Noncardiac surgery conveys a substantial risk of secondary organ dysfunction and injury. Neurocognitive dysfunction and covert stroke are emerging as major forms of perioperative organ dysfunction, but a better understanding of perioperative neurobiology is required to identify effective treatment strategies. The likelihood and severity of perioperative brain injury may be increased by intraoperative hemodynamic dysfunction, tissue hypoperfusion, and a failure to recognize complications early in their development. Advances in neuroimaging and monitoring techniques, including optical, sonographic, and magnetic resonance, have progressed beyond structural imaging and now enable noninvasive assessment of cerebral perfusion, vascular reserve, metabolism, and neurologic function at the bedside. Translation of these imaging methods into the perioperative setting has highlighted several potential avenues to optimize tissue perfusion and deliver neuroprotection. This review introduces the methods, metrics, and evidence underlying emerging optical and magnetic resonance neuroimaging methods and discusses their potential experimental and clinical utility in the setting of noncardiac surgery.
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Perioperative screening and management in elective complex hepatobiliary surgery. Curr Opin Crit Care 2022; 28:221-228. [PMID: 35131993 DOI: 10.1097/mcc.0000000000000922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
PURPOSE OF REVIEW Preoperative optimization and structured evidence-based perioperative care of a patient undergoing complex hepatobiliary (HPB) surgery are essential components in their management. Apart from advances in surgical technique, these perioperative measures have resulted in substantial reductions in morbidity and mortality. There hence, remains a continued need to have evidence-based updation in their management algorithm to ensure optimal outcomes. RECENT FINDINGS We present an evidence-based overview of the preoperative screening, optimization and perioperative management of patients undergoing complex HPB surgery. SUMMARY Perioperative care of these fragile patients is an evidence-based dynamic process. Optimal patient management undergoing HPB surgery requires risk assessment and stratification, and meticulous attention to the correction of underlying conditions. Despite this, postoperative morbidity remains relatively high and requires a cohesive multidisciplinary approach to minimize complications.
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Hansen J, Pohlmann M, Beckmann JH, Klose P, Gruenewald M, Renner J, Lorenzen U, Elke G. Comparison of oscillometric, non-invasive and invasive arterial pressure monitoring in patients undergoing laparoscopic bariatric surgery – a secondary analysis of a prospective observational study. BMC Anesthesiol 2022; 22:83. [PMID: 35346046 PMCID: PMC8962134 DOI: 10.1186/s12871-022-01619-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 03/17/2022] [Indexed: 11/18/2022] Open
Abstract
Background Oscillometric, non-invasive blood pressure measurement (NIBP) is the first choice of blood pressure monitoring in the majority of low and moderate risk surgeries. In patients with morbid obesity, however, it is subject to several limitations. The aim was to compare arterial pressure monitoring by NIBP and a non-invasive finger-cuff technology (Nexfin®) with the gold-standard invasive arterial pressure (IAP). Methods In this secondary analysis of a prospective observational, single centre cohort study, systolic (SAP), diastolic (DAP) and mean arterial pressure (MAP) were measured at 16 defined perioperative time points including posture changes, fluid bolus administration and pneumoperitoneum (PP) in patients undergoing laparoscopic bariatric surgery. Absolute arterial pressures by NIBP, Nexfin® and IAP were compared using correlation and Bland Altman analyses. Interchangeability was defined by a mean difference ≤ 5 mmHg (SD ≤8 mmHg). Percentage error (PE) was calculated as an additional statistical estimate. For hemodynamic trending, concordance rates were analysed according to the Critchley criterion. Results Sixty patients (mean body mass index of 49.2 kg/m2) were enrolled and data from 56 finally analysed. Pooled blood pressure values of all time points showed a significant positive correlation for both NIPB and Nexfin® versus IAP. Pooled PE for NIBP versus IAP was 37% (SAP), 35% (DAP) and 30% (MAP), for Nexfin versus IAP 23% (SAP), 26% (DAP) and 22% (MAP). Correlation of MAP was best and PE lowest before induction of anesthesia for NIBP versus IAP (r = 0.72; PE 24%) and after intraoperative fluid bolus administration for Nexfin® versus IAP (r = 0.88; PE: 17.2%). Concordance of MAP trending was 90% (SAP 85%, DAP 89%) for NIBP and 91% (SAP 90%, DAP 86%) for Nexfin®. MAP trending was best during intraoperative ATP positioning for NIBP (97%) and at induction of anesthesia for Nexfin® (97%). Conclusion As compared with IAP, interchangeability of absolute pressure values could neither be shown for NIBP nor Nexfin®, however, NIBP showed poorer overall correlation and precision. Overall trending ability was generally high with Nexfin® surpassing NIBP. Nexfin® may likely render individualized decision-making in the management of different hemodynamic stresses during laparoscopic bariatric surgery, particularly where NIBP cannot be reliably established. Trial registration The non-interventional, observational study was registered retrospectively at (NCT03184285) on June 12, 2017.
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Giglio M, Biancofiore G, Corriero A, Romagnoli S, Tritapepe L, Brienza N, Puntillo F. Perioperative goal-directed therapy and postoperative complications in different kind of surgical procedures: an updated meta-analysis. JOURNAL OF ANESTHESIA, ANALGESIA AND CRITICAL CARE (ONLINE) 2021; 1:26. [PMID: 37386648 DOI: 10.1186/s44158-021-00026-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 11/25/2021] [Indexed: 07/01/2023]
Abstract
BACKGROUND Goal-directed therapy (GDT) aims to assure tissue perfusion, by optimizing doses and timing of fluids, inotropes, and vasopressors, through monitoring of cardiac output and other basic hemodynamic parameters. Several meta-analyses confirm that GDT can reduce postoperative complications. However, all recent evidences focused on high-risk patients and on major abdominal surgery. OBJECTIVES The aim of the present meta-analysis is to investigate the effect of GDT on postoperative complications (defined as number of patients with a least one postoperative complication) in different kind of surgical procedures. DATA SOURCES Randomized controlled trials (RCTs) on perioperative GDT in adult surgical patients were included. The primary outcome measure was complications, defined as number of patients with at least one postoperative complication. A subgroup-analysis was performed considering the kind of surgery: major abdominal (including also major vascular), only vascular, only orthopedic surgery. and so on. STUDY APPRAISAL AND SYNTHESIS METHODS Meta-analytic techniques (analysis software RevMan, version 5.3.5, Cochrane Collaboration, Oxford, England, UK) were used to combine studies using odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS In 52 RCTs, 6325 patients were enrolled. Of these, 3162 were randomized to perioperative GDT and 3153 were randomized to control. In the overall population, 2836 patients developed at least one complication: 1278 (40%) were randomized to perioperative GDT, and 1558 (49%) were randomized to control. Pooled OR was 0.60 and 95% CI was 0.49-0.72. The sensitivity analysis confirmed the main result. The analysis enrolling major abdominal patients showed a significant result (OR 0.72, 95% CI 0.59-0.87, p = 0.0007, 31 RCTs, 4203 patients), both in high- and low-risk patients. A significant effect was observed in those RCTs enrolling exclusively orthopedic procedures (OR 0.53, 95% CI 0.35-0.80, p = 0.002, 7 RCTs, 650 patients. Also neurosurgical procedures seemed to benefit from GDT (OR 0.40, 95% CI 0.21-0.78, p = 0.008, 2 RCTs, 208 patients). In both major abdominal and orthopedic surgery, a strategy adopting fluids and inotropes yielded significant results. The total volume of fluid was not significantly different between the GDT and the control group. CONCLUSIONS AND IMPLICATIONS OF KEY FINDINGS The present meta-analysis, within the limits of the existing data, the clinical and statistical heterogeneity, suggests that GDT can reduce postoperative complication rate. Moreover, the beneficial effect of GDT on postoperative morbidity is significant on major abdominal, orthopedic and neurosurgical procedures. Several well-designed RCTs are needed to further explore the effect of GDT in different kind of surgeries.
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Affiliation(s)
- Mariateresa Giglio
- Anesthesia and Intensive Care Unit, Policlinico di Bari, Piazza G. Cesare, 11, 70124, Bari, Italy.
| | | | - Alberto Corriero
- Anesthesia and Intensive Care Unit, Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Stefano Romagnoli
- Anesthesia, Intensive Care Unit and Pain Unit, Department of Interdisciplinary Medicine, University of Bari, Bari, Italy
| | - Luigi Tritapepe
- Dipartimento di Anestesia e Rianimazione, Azienda Ospedaliero-Universitaria Careggi, Firenze, Italy
| | - Nicola Brienza
- Direttore UOC Anestesia e Rianimazione, AO San Camillo Forlanini-Roma, Rome, Italy
| | - Filomena Puntillo
- Direttore UOC Anestesia e Rianimazione, AO San Camillo Forlanini-Roma, Rome, Italy
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Watanabe R, Suehiro K, Mukai A, Tanaka K, Yamada T, Mori T, Nishikawa K. Changes in stroke volume induced by lung recruitment maneuver can predict fluid responsiveness during intraoperative lung-protective ventilation in prone position. BMC Anesthesiol 2021; 21:303. [PMID: 34856928 PMCID: PMC8638171 DOI: 10.1186/s12871-021-01527-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Accepted: 11/18/2021] [Indexed: 12/16/2022] Open
Abstract
Background The present study aimed to evaluate the reliability of hemodynamic changes induced by lung recruitment maneuver (LRM) in predicting stroke volume (SV) increase after fluid loading (FL) in prone position. Methods Thirty patients undergoing spine surgery in prone position were enrolled. Lung-protective ventilation (tidal volume, 6–7 mL/kg; positive end-expiratory pressure, 5 cmH2O) was provided to all patients. LRM (30 cmH2O for 30 s) was performed. Hemodynamic variables including mean arterial pressure (MAP), heart rate, SV, SV variation (SVV), and pulse pressure variation (PPV) were simultaneously recorded before, during, and at 5 min after LRM and after FL (250 mL in 10 min). Receiver operating characteristic curves were generated to evaluate the predictability of SVV, PPV, and SV decrease by LRM (ΔSVLRM) for SV responders (SV increase after FL > 10%). The gray zone approach was applied for ΔSVLRM. Results Areas under the curve (AUCs) for ΔSVLRM, SVV, and PPV to predict SV responders were 0.778 (95% confidence interval: 0.590–0.909), 0.563 (0.371–0.743), and 0.502 (0.315–0.689), respectively. The optimal threshold for ΔSVLRM was 30% (sensitivity, 92.3%; specificity, 70.6%). With the gray zone approach, the inconclusive values ranged 25 to 75% for ΔSVLRM (including 50% of enrolled patients). Conclusion In prone position, LRM-induced SV decrease predicted SV increase after FL with higher reliability than traditional dynamic indices. On the other hand, considering the relatively large gray zone in this study, future research is needed to further improve the clinical significance. Trial registration UMIN Clinical Trial Registry UMIN000027966. Registered 28th June 2017.
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Affiliation(s)
- Ryota Watanabe
- Department of Anesthesiology, Osaka City University Graduate School of Medicine, 1-5-7 Asahimachi, Abeno-ku, Osaka, 545-8586, Japan
| | - Koichi Suehiro
- Department of Anesthesiology, Osaka City University Graduate School of Medicine, 1-5-7 Asahimachi, Abeno-ku, Osaka, 545-8586, Japan.
| | - Akira Mukai
- Department of Anesthesiology, Osaka City University Graduate School of Medicine, 1-5-7 Asahimachi, Abeno-ku, Osaka, 545-8586, Japan
| | - Katsuaki Tanaka
- Department of Anesthesiology, Osaka City University Graduate School of Medicine, 1-5-7 Asahimachi, Abeno-ku, Osaka, 545-8586, Japan
| | - Tokuhiro Yamada
- Department of Anesthesiology, Osaka City University Graduate School of Medicine, 1-5-7 Asahimachi, Abeno-ku, Osaka, 545-8586, Japan
| | - Takashi Mori
- Department of Anesthesiology, Osaka City University Graduate School of Medicine, 1-5-7 Asahimachi, Abeno-ku, Osaka, 545-8586, Japan
| | - Kiyonobu Nishikawa
- Department of Anesthesiology, Osaka City University Graduate School of Medicine, 1-5-7 Asahimachi, Abeno-ku, Osaka, 545-8586, Japan
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Deana C, Vetrugno L, Bignami E, Bassi F. Peri-operative approach to esophagectomy: a narrative review from the anesthesiological standpoint. J Thorac Dis 2021; 13:6037-6051. [PMID: 34795950 PMCID: PMC8575828 DOI: 10.21037/jtd-21-940] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 08/19/2021] [Indexed: 12/16/2022]
Abstract
Objective This review summarizes the peri-operative anesthesiological approaches to esophagectomy considering the best up-to-date, evidence-based medicine, discussed from the anesthesiologist’s standpoint. Background Esophagectomy is the only curative therapy for esophageal cancer. Despite the many advancements made in the surgical treatment of this tumour, esophagectomy still carries a morbidity rate reaching 60%. Patients undergoing esophagectomy should be referred to high volume centres where they can receive a multidisciplinary approach to treatment, associated with better outcomes. The anesthesiologist is the key figure who should guide the peri-operative phase, from diagnosis through to post-surgery rehabilitation. We performed an updated narrative review devoted to the study of anesthesia management for esophagectomy in cancer patients. Methods We searched MEDLINE, Scopus and Google Scholar databases from inception to May 2021. We used the following terms: “esophagectomy”, “esophagectomy AND pre-operative evaluation”, “esophagectomy AND protective lung ventilation”, “esophagectomy AND hemodynamic monitoring” and “esophagectomy AND analgesia”. We considered only articles with abstract written in English and available to the reader. We excluded single case-reports. Conclusions Pre-operative anesthesiological evaluation is mandatory in order to stratify and optimize any medical condition. During surgery, protective ventilation and judicious fluid management are the cornerstones of intraoperative “protective anesthesia”. Post-operative care should be provided by an intensive care unit or high-dependency unit depending on the patient’s condition, the type of surgery endured and the availability of local resources. The provision of adequate post-operative analgesia favours early mobilization and rapid recovery. Anesthesiologist has an important role during the peri-operative care for esophagectomy. However, there are still some topics that need to be further studied to improve the outcome of these patients.
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Affiliation(s)
- Cristian Deana
- Department of Anesthesia and Intensive Care, ASUFC-Academic Hospital of Udine, Udine, Italy
| | - Luigi Vetrugno
- Department of Anesthesia and Intensive Care, ASUFC-Academic Hospital of Udine, Udine, Italy.,Department of Medical Area, University of Udine, Udine, Italy
| | - Elena Bignami
- Anesthesiology, Critical Care and Pain Medicine Division, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Flavio Bassi
- Department of Anesthesia and Intensive Care, ASUFC-Academic Hospital of Udine, Udine, Italy
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Should We Really Use Respiratory Stroke Volume Variation to Assess Fluid Responsiveness in Cardiac Surgical Patients? Crit Care Med 2021; 49:e1191-e1192. [PMID: 34643592 DOI: 10.1097/ccm.0000000000005156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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