Details

Autor(en) / Beteiligte

• Mazur, Andrej
• Brat, Kristian
• Homolka, Pavel
• Merta, Zdenek
• Svoboda, Michal
• Bratova, Monika
• Sramek, Vladimir
• Olson, Lyle J
• Cundrle, Ivan
• Milani, Juliana Goulart Prata Oliveira

Titel

Ventilatory efficiency is superior to peak oxygen uptake for prediction of lung resection cardiovascular complications

Ist Teil von

• PloS one, 2022-08, Vol.17 (8), p.e0272984-e0272984

Ort / Verlag

San Francisco: Public Library of Science

Erscheinungsjahr

2022

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• Ventilatory efficiency (V.sub.E /VCO.sub.2 slope) has been shown superior to peak oxygen consumption (VO.sub.2) for prediction of post-operative pulmonary complications in patients undergoing thoracotomy. V.sub.E /VCO.sub.2 slope is determined by ventilatory drive and ventilation/perfusion mismatch whereas VO.sub.2 is related to cardiac output and arteriovenous oxygen difference. We hypothesized pre-operative VO.sub.2 predicts post-operative cardiovascular complications in patients undergoing lung resection. Lung resection candidates from a published study were evaluated by post-hoc analysis. All of the patients underwent preoperative cardiopulmonary exercise testing. Post-operative cardiovascular complications were assessed during the first 30 post-operative days or hospital stay. One-way analysis of variance or the Kruskal-Wallis test, and multivariate logistic regression were used for statistical analysis and data summarized as median (IQR). Of 353 subjects, 30 (9%) developed pulmonary complications only (excluded from further analysis), while 78 subjects (22%) developed cardiovascular complications and were divided into two groups for analysis: cardiovascular only (n = 49) and cardiovascular with pulmonary complications (n = 29). Compared to patients without complications (n = 245), peak VO.sub.2 was significantly lower in the cardiovascular with pulmonary complications group [19.9 ml/kg/min (16.5-25) vs. 16.3 ml/kg/min (15-20.3); P<0.01] but not in the cardiovascular only complications group [19.9 ml/kg/min (16.5-25) vs 19.0 ml/kg/min (16-23.1); P = 0.18]. In contrast, V.sub.E /VCO.sub.2 slope was significantly higher in both cardiovascular only [29 (25-33) vs. 31 (27-37); P = 0.05] and cardiovascular with pulmonary complication groups [29 (25-33) vs. 37 (34-42); P<0.01)]. Logistic regression analysis showed V.sub.E /VCO.sub.2 slope [OR = 1.06; 95%CI (1.01-1.11); P = 0.01; AUC = 0.74], but not peak VO.sub.2 to be independently associated with post-operative cardiovascular complications. V.sub.E /VCO.sub.2 slope is superior to peak VO.sub.2 for prediction of post-operative cardiovascular complications in lung resection candidates.