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- Title
Intraoperative air leak measured after lobectomy is associated with postoperative duration of air leak.
- Authors
Brunelli, Alessandro; Salati, Michele; Pompili, Cecilia; Gentili, Paolo; Sabbatini, Armando
- Abstract
OBJECTIVES: To verify the association between the air leak objectively measured intraoperatively (IAL) using the ventilator and the air leak duration after pulmonary lobectomy. METHODS: Prospective analysis on 111 patients submitted to pulmonary lobectomy (33 by video-assisted thoracic surgery). After resection, objective assessment of air leak (in milliliter per minute) was performed before closure of the chest by measuring the difference between a fixed inspired and expired volume, using a tidal volume of 8 ml/kg, a respiratory rate of 10 and a positive-end expiratory pressure of 5 cmH2O. A multivariable analysis was performed for identifying factors associated with duration of postoperative air leak. RESULTS: Average IAL was 158 ml/min (range 0-1500 ml/min). The best cut-off (receiver-operating characteristics analysis) associated with air leak longer than 5 days was 500 ml/min. Nine patients had IAL >500 ml/min (8%). They had a longer duration of postoperative air leak compared with those with a lower IAL (mean values, 10.1 days, SD 8.8 vs 1.5 days, SD 4.9 P < 0.001). The following variables remained associated with days of air leak duration after multivariable regression: left side resection (P = 0.018), upper site resection (P = 0.031) and IAL >500 ml/min (P < 0.001). The following equation estimating the days of air leak duration was generated: 1.7 + 2.4 x left side + 2.2 x upper site + 8.8 x IAL >500. CONCLUSIONS: The air leak measurement using the ventilator parameters after lung resection may assist in estimating the risk of postoperative prolonged air leak. An IAL > 500 ml/min may warrant the use of intraoperative preventative measures, particularly after videoassisted thoracic surgery lobectomy where a submersion test is often unreliable.
- Subjects
LOBECTOMY (Lung surgery); LUNG surgery complications; BILOBECTOMY; SEALING compounds
- Publication
European Journal of Cardio-Thoracic Surgery, 2017, Vol 52, Issue 5, p963
- ISSN
1010-7940
- Publication type
Article
- DOI
10.1093/ejcts/ezx105