Skip to main navigation Skip to search Skip to main content

Intraoperative individualization of positive-end-expiratory pressure through electrical impedance tomography or esophageal pressure assessment: a systematic review and meta-analysis of randomized controlled trials

  • Teresa Esposito
  • , Martina Fregonese
  • , Giulio Morettini
  • , Paloma Carboni
  • , Cecilia Tardioli
  • , Antonio Messina
  • , Rosanna VASCHETTO
  • , Francesco Della Corte
  • , Luigi Vetrugno
  • , Paolo Navalesi
  • , Edoardo De Robertis
  • , Danila Azzolina
  • , Annop Piriyapatsom
  • , Mauro R Tucci
  • , Hermann Wrigge
  • , Philipp Simon
  • , Elena Bignami
  • , Salvatore M Maggiore
  • , Rachele Simonte
  • , Gianmaria CAMMAROTA

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: This systematic review of randomized-controlled trials (RCTs) with meta-analyses aimed to compare the effects on intraoperative arterial oxygen tension to inspired oxygen fraction ratio (PaO2/FiO2), exerted by positive end-expiratory pressure (PEEP) individualized trough electrical impedance tomography (EIT) or esophageal pressure (Pes) assessment (intervention) vs. PEEP not tailored on EIT or Pes (control), in patients undergoing abdominal or pelvic surgery with an open or laparoscopic/robotic approach. Methods: PUBMED®, EMBASE®, and Cochrane Controlled Clinical trials register were searched for observational studies and RCTs from inception to the end of August 2022. Inclusion criteria were: RCTs comparing PEEP titrated on EIT/Pes assessment vs. PEEP not individualized on EIT/Pes and reporting intraoperative PaO2/FiO2. Two authors independently extracted data from the enrolled investigations. Data are reported as mean difference and 95% confidence interval (CI). Results: Six RCTs were included for a total of 240 patients undergoing general anesthesia for surgery, of whom 117 subjects in the intervention group and 123 subjects in the control group. The intraoperative mean PaO2/FiO2 was 69.6 (95%CI 32.-106.4 ) mmHg higher in the intervention group as compared with the control group with 81.4% between-study heterogeneity (p < 0.01). However, at meta-regression, the between-study heterogeneity diminished to 44.96% when data were moderated for body mass index (estimate 3.45, 95%CI 0.78-6.11, p = 0.011). Conclusions: In patients undergoing abdominal or pelvic surgery with an open or laparoscopic/robotic approach, PEEP personalized by EIT or Pes allowed the achievement of a better intraoperative oxygenation compared to PEEP not individualized through EIT or Pes. Prospero registration number: CRD 42021218306, 30/01/2023.
Original languageEnglish
JournalJournal of Clinical Monitoring and Computing
DOIs
Publication statusPublished - 2023

Keywords

  • Electrical impedance tomography
  • Esophageal pressure
  • Intraoperative mechanical ventilation
  • Intraoperative oxygenation
  • Pulmonary complications

Fingerprint

Dive into the research topics of 'Intraoperative individualization of positive-end-expiratory pressure through electrical impedance tomography or esophageal pressure assessment: a systematic review and meta-analysis of randomized controlled trials'. Together they form a unique fingerprint.

Cite this