ArticleBMC anesthesiology2026
Association of preoperative forced vital capacity with prolonged mechanical ventilation after coronary artery bypass grafting: a retrospective cohort Study.
Article in BMC anesthesiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors.
Funding
Abstract
backgroundProlonged mechanical ventilation (PMV) is a serious complication after coronary artery bypass grafting (CABG), yet the association between preoperative pulmonary function and PMV risk remains to be comprehensively evaluated.
methodsThis study included adult patients who underwent isolated CABG with preoperative pulmonary function testing. Predicted forced vital capacity (FVC), predicted forced expiratory volume in 1 s (FEV₁), and the FEV₁/FVC ratio were assessed for their association with PMV.
resultsAmong 1,702 patients, 151 (8.9%) experienced PMV. Patients with PMV were older (65.1 ± 8.5 vs. 62.8 ± 8.8 years, P = 0.003), had higher rates of chronic obstructive pulmonary disease (9.9% vs. 5.4%, P = 0.034) and on-pump CABG (8.6% vs. 1.2%, P < 0.001), lower left ventricular ejection fraction (57.1 ± 10.3% vs. 59.1 ± 8.7%, P = 0.007), lower predicted FVC (82.9 ± 14.0% vs. 88.1 ± 14.9%, P < 0.001), and lower predicted FEV₁ (88.7 ± 15.5% vs. 92.6 ± 16.2%, P = 0.007). They also had higher perioperative mortality (4.0% vs. 0.1%, P < 0.001), longer postoperative hospital stays (10.9 ± 4.2 vs. 8.0 ± 2.6 days, P < 0.001), and greater hospitalization costs (25,309.4 [22,119.4-33,359.3] vs. 18,155.4 [16,665.8-20,001.5] USD, P < 0.001). Restricted cubic spline analysis showed no non-linear relationship between pulmonary function parameters and PMV. After multivariable adjustment, predicted FVC remained independently associated with PMV (odds ratio [OR] 0.97, 95% confidence interval [CI] 0.95-0.99, P = 0.005), whereas predicted FEV₁ did not.
conclusionsNearly one-tenth of patients undergoing CABG required PMV, which was associated with greater healthcare resource utilization and higher perioperative complications. Predicted FVC, but not predicted FEV₁, is an independent predictor of PMV.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.