Trial reportKorean journal of anesthesiology2026
Effect of individualized positive end-expiratory pressure titration guided by electrical impedance tomography on oxygenation in patients undergoing laparoscopic surgery in the lateral decubitus position: a randomized controlled study.
Trial report in Korean journal of anesthesiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- Thoracic electrical impedance tomography from technological promise to clinical reality: the Chinese experience.Journal of thoracic disease · 2026Review
- Individualized PEEP guided by electrical impedance tomography: physiological promise without clear clinical benefit.Korean journal of anesthesiology · 2026Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundLaparoscopic surgery in the lateral decubitus position can alter pulmonary mechanics and oxygenation. Although positive end-expiratory pressure (PEEP) may alleviate these effects, the optimal level remains unclear. This study evaluated whether electrical impedance tomography (EIT)-guided PEEP titration improves oxygenation compared to a fixed PEEP of 5 cmH2O.
methodsIn this randomized controlled trial, 74 adult patients undergoing robot-assisted or laparoscopic urologic surgery in the lateral decubitus position were assigned to either the EIT-guided or standard care group. The EIT-guided group underwent decremental PEEP titration to determine and maintain optimal PEEP throughout surgery. The standard care group received a fixed PEEP of 5 cmH2O. The primary outcome was ratio of partial pressure of arterial oxygen to fraction of inspired oxygen (PaO2/FiO2) at the end of surgery. Secondary outcomes included intraoperative respiratory mechanics and postoperative pulmonary complications (PPCs) until discharge.
resultsSeventy-one patients completed the study (EIT-guided: 35, standard care: 36). The PaO2/FiO2 ratio at the end of surgery was higher in the EIT-guided group than in the standard care group (523.8 ± 82.4 vs. 414.6 ± 96.7 mmHg, P < 0.001). Driving pressure was lower in the EIT-guided group at 30 min after pneumoperitoneum initiation (15.8 [12.5, 17.4] vs. 19.9 [17.2, 22.5] cmH2O, P < 0.001) and at the end of surgery (9.1 [8.0, 10.4] vs. 10.0 [8.8, 12.6] cmH2O, P = 0.033). PPCs did not differ between groups.
conclusionsEIT-guided PEEP titration improved intraoperative oxygenation. Further studies are needed to assess clinical outcomes.
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