Intraoperative mechanical ventilation strategies to prevent postoperative pulmonary complications in patients with pulmonary and extrapulmonary comorbidities

2015 ◽  
Vol 29 (3) ◽  
pp. 341-355 ◽  
Author(s):  
Tanja A. Treschan ◽  
Luiz Marcelo Malbouisson ◽  
Martin Beiderlinden
Keyword(s):  
Mechanical Ventilation ◽  
Pulmonary Complications ◽  
Postoperative Pulmonary Complications ◽  
Ventilation Strategies

Intraoperative Protective Mechanical Ventilation for Prevention of Postoperative Pulmonary Complications

2015 ◽  
Vol 123 (3) ◽  
pp. 692-713 ◽  
Author(s):  
Andreas Güldner ◽  
Thomas Kiss ◽  
Ary Serpa Neto ◽  
Sabrine N. T. Hemmes ◽  
Jaume Canet ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Relevant Literature ◽  
Length Of Hospital Stay ◽  
Pulmonary Complications ◽  
Major Surgery ◽  
Postoperative Pulmonary Complication ◽  
Postoperative Pulmonary Complications ◽  
Ventilator Induced Lung Injury ◽  
Ventilation Strategies ◽  
Protective Mechanical Ventilation

Abstract Postoperative pulmonary complications are associated with increased morbidity, length of hospital stay, and mortality after major surgery. Intraoperative lung-protective mechanical ventilation has the potential to reduce the incidence of postoperative pulmonary complications. This review discusses the relevant literature on definition and methods to predict the occurrence of postoperative pulmonary complication, the pathophysiology of ventilator-induced lung injury with emphasis on the noninjured lung, and protective ventilation strategies, including the respective roles of tidal volumes, positive end-expiratory pressure, and recruitment maneuvers. The authors propose an algorithm for protective intraoperative mechanical ventilation based on evidence from recent randomized controlled trials.

scholarly journals Effect of Intraoperative Ventilation Strategies on Postoperative Pulmonary Complications: A Meta-Analysis

2021 ◽  
Vol 8 ◽  
Author(s):  
Min Lei ◽  
Qi Bao ◽  
Huanyu Luo ◽  
Pengfei Huang ◽  
Junran Xie
Keyword(s):  
Mechanical Ventilation ◽  
Pleural Effusion ◽  
Meta Analysis ◽  
Conventional Mechanical Ventilation ◽  
Pulmonary Complications ◽  
Aspiration Pneumonitis ◽  
Cochrane Library ◽  
Postoperative Pulmonary Complications ◽  
Ventilation Strategies ◽  
Intraoperative Ventilation

Introduction: The role of intraoperative ventilation strategies in subjects undergoing surgery is still contested. This meta-analysis study was performed to assess the relationship between the low tidal volumes strategy and conventional mechanical ventilation in subjects undergoing surgery.Methods: A systematic literature search up to December 2020 was performed in OVID, Embase, Cochrane Library, PubMed, and Google scholar, and 28 studies including 11,846 subjects undergoing surgery at baseline and reporting a total of 2,638 receiving the low tidal volumes strategy and 3,632 receiving conventional mechanical ventilation, were found recording relationships between low tidal volumes strategy and conventional mechanical ventilation in subjects undergoing surgery. Odds ratio (OR) or mean difference (MD) with 95% confidence intervals (CIs) were calculated between the low tidal volumes strategy vs. conventional mechanical ventilation using dichotomous and continuous methods with a random or fixed-effect model.Results: The low tidal volumes strategy during surgery was significantly related to a lower rate of postoperative pulmonary complications (OR, 0.60; 95% CI, 0.44–0.83, p < 0.001), aspiration pneumonitis (OR, 0.63; 95% CI, 0.46–0.86, p < 0.001), and pleural effusion (OR, 0.72; 95% CI, 0.56–0.92, p < 0.001) compared to conventional mechanical ventilation. However, the low tidal volumes strategy during surgery was not significantly correlated with length of hospital stay (MD, −0.48; 95% CI, −0.99–0.02, p = 0.06), short-term mortality (OR, 0.88; 95% CI, 0.70–1.10, p = 0.25), atelectasis (OR, 0.76; 95% CI, 0.57–1.01, p = 0.06), acute respiratory distress (OR, 1.06; 95% CI, 0.67–1.66, p = 0.81), pneumothorax (OR, 1.37; 95% CI, 0.88–2.15, p = 0.17), pulmonary edema (OR, 0.70; 95% CI, 0.38–1.26, p = 0.23), and pulmonary embolism (OR, 0.65; 95% CI, 0.26–1.60, p = 0.35) compared to conventional mechanical ventilation.Conclusions: The low tidal volumes strategy during surgery may have an independent relationship with lower postoperative pulmonary complications, aspiration pneumonitis, and pleural effusion compared to conventional mechanical ventilation. This relationship encouraged us to recommend the low tidal volumes strategy during surgery to avoid any possible complications.

scholarly journals Management of Intraoperative Mechanical Ventilation to Prevent Postoperative Complications after General Anesthesia: A Narrative Review

2021 ◽  
Vol 10 (12) ◽  
pp. 2656
Author(s):  
Alberto Fogagnolo ◽  
Federica Montanaro ◽  
Lou’i Al-Husinat ◽  
Cecilia Turrini ◽  
Michela Rauseo ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Tidal Volume ◽  
Pulmonary Complications ◽  
Point Of View ◽  
Whole Body ◽  
Positive End Expiratory Pressure ◽  
Ventilation Strategies ◽  
Harmful Effects ◽  
Ventilation Induced Lung Injury ◽  
Different Levels

Mechanical ventilation (MV) is still necessary in many surgical procedures; nonetheless, intraoperative MV is not free from harmful effects. Protective ventilation strategies, which include the combination of low tidal volume and adequate positive end expiratory pressure (PEEP) levels, are usually adopted to minimize the ventilation-induced lung injury and to avoid post-operative pulmonary complications (PPCs). Even so, volutrauma and atelectrauma may co-exist at different levels of tidal volume and PEEP, and therefore, the physiological response to the MV settings should be monitored in each patient. A personalized perioperative approach is gaining relevance in the field of intraoperative MV; in particular, many efforts have been made to individualize PEEP, giving more emphasis on physiological and functional status to the whole body. In this review, we summarized the latest findings about the optimization of PEEP and intraoperative MV in different surgical settings. Starting from a physiological point of view, we described how to approach the individualized MV and monitor the effects of MV on lung function.

scholarly journals Mechanical ventilation is controlled by volume or pressure during neurosurgery. Is there an advantage?

2021 ◽  
Vol 17 (8) ◽  
pp. 51-54
Author(s):  
R.O. Merza ◽  
Ya.M. Pidhirnyi
Keyword(s):  
Mechanical Ventilation ◽  
Pulmonary Ventilation ◽  
Intermittent Positive Pressure Ventilation ◽  
Pulmonary Complications ◽  
Volume Control ◽  
Positive Pressure ◽  
Postoperative Pulmonary Complications ◽  
Oxygen Fraction ◽  
Number Of Patients ◽  
Neurosurgical Patients

Background. One of the main technologies of modern anesthesiology is mechanical ventilation (MV). At present, the protective technology of MV is widely recognized. The feasibi-lity of using this technology in the operating room, especially in patients with intact lungs, is not so obvious. Most of the scientific sources that cover this problem relate to patients with abdominal pathology, and less coverage remains in patients with neurosurgical pathology. However, patients who are operated on for neurosurgical pathology belong to the group of patients of high surgical risk, which forced us to conduct this study. The study was aimed to examine the feasibility of using protective MV during surgery in neurosurgical patients. Materials and methods. We examined 46 patients who were hospitalized in KNP 8 MKL in Lviv for spinal pathology and who underwent surgery for vertebroplasty with spondylodesis. Patients were divided into two groups: in the first group (34 patients), MV was performed by S-IPPV technology — synchronized intermittent positive pressure ventilation with volume control; and in the second group (12 patients), MV was performed by PCV technology — controlled ventilation pressure. Results. We retrospectively determined the incidence of post-operative pulmonary complications (POPC) in patients of the first and second groups. Of the 34 patients of the first group, the signs of POPC were detected in 17 patients (50 %), and of 12 patients of the second group, POPC were detected in 4 patients (33.3 %). It should be noted that MV in patients of both groups did not differ in such parameters as respiratory rate, end-alveolar pressure, and the fraction of oxygen in the respiratory mixture. Conclusions. A relatively small number of patients clearly do not allow the conclusions to be drawn, but it should be noted that MV (especially volume-controlled) contributes to postoperative pulmonary complications in patients with intact lungs in the preoperative period. And pressure-controlled MV tends to reduce the incidence of postoperative pulmonary complications in the postoperative period. Given that respiration rate, end-alveolar expiratory pressure and oxygen fraction in the respiratory mixture were comparable in patients of both groups, it can be assumed that the factor influencing the incidence of POPC is the mechanics of pulmonary ventilation.

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