ObjectiveTo systematically evaluate the risk factors for persistent cough after lung resection, providing a theoretical basis for preventing persistent postoperative cough. MethodsThe Cochrane Library, Web of Science, EMbase, PubMed, Chinese Biomedical Literature Database, Wanfang, CNKI, and VIP databases were searched for studies related to risk factors for persistent cough after lung resection. The search period was from database inception to March 30, 2023. Two researchers independently screened the literature, extracted data, and performed quality assessment. RevMan 5.3 software was used for meta-analysis. ResultsA total of 17 articles with 3 698 patients were included. Meta-analysis results showed that females [OR=3.10, 95%CI (1.99, 4.81), P<0.001], age [OR=1.72, 95%CI (1.33, 2.21), P<0.001], right-sided lung surgery [OR=2.36, 95%CI (1.80, 3.10), P<0.001], lobectomy [OR=3.40, 95%CI (2.47, 4.68), P<0.001], upper lobectomy [OR=8.19, 95%CI (3.87, 17.36), P<0.001], lymph node dissection [OR=3.59, 95%CI (2.72, 4.72), P<0.001], bronchial stump closure method [OR=5.19, 95%CI (1.79, 16.07), P=0.002], and postoperative gastric acid reflux [OR=6.24, 95%CI (3.27, 11.91), P<0.001] were risk factors for persistent cough after lung resection, while smoking history was a protective factor against postoperative cough [OR=0.59, 95%CI (0.45, 0.77), P<0.001]. In addition, the quality of life score of patients with postoperative cough decreased compared with that before surgery [MD=1.50, 95%CI (0.14, 2.86), P=0.03]. ConclusionCurrent evidence suggests that females, age, right-sided lung surgery, lobectomy, upper lobectomy, lymph node dissection, bronchial stump closure method (stapler closure), and postoperative gastric acid reflux are independent risk factors for persistent postoperative cough in lung resection patients, while smoking history may be a protective factor against postoperative cough. This provides evidence-based information for clinical medical staff on how to prevent and reduce persistent postoperative cough in patients and improve their quality of life in the future.
ObjectiveTo discuss the safety and feasibility of no chest tube (NCT) after thoracoscopic pneumonectomy.MethodsThe online databases including PubMed, EMbase, The Cochrane Library, Web of Science, China National Knowledge Infrastructure (CNKI), WanFang Database, VIP, China Biology Medicine disc (CBMdisc) were searched by computer from inception to October 2020 to collect the research on NCT after thoracoscopic pneumonectomy. Two reviewers independently screened the literature, extracted the data, and evaluated the quality of the included studies. The RevMan 5.3 software was used for meta-analysis.ResultsA total of 17 studies were included. There were 12 cohort studies and 5 randomized controlled trials including 1 572 patients with 779 patients in the NCT group and 793 patients in the chest tube placement (CTP) group. Meta–analysis results showed that the length of postoperative hospital stay in the NCT group was shorter than that in the CTP group (SMD=–1.23, 95%CI –1.59 to –0.87, P<0.000 01). Patients in the NCT group experienced slighter pain than those in the CTP group at postoperative day (POD)1 (SMD=–0.97, 95%CI –1.42 to –0.53, P<0.000 1), and POD2 (SMD=–1.10, 95%CI –2.00 to –0.20, P=0.02), while no statistical difference was found between the two groups in the visual analogue scale of POD3 (SMD=–0.92, 95%CI –1.91 to 0.07, P=0.07). There was no statistical difference in the 30-day complication rate (RR=0.93, 95%CI 0.61 to 1.44, P=0.76), the rate of postoperative chest drainage (RR=1.51, 95%CI 0.68 to 3.37, P=0.31) or the rate of thoracocentesis (RR=2.81, 95%CI 0.91 to 8.64, P=0.07) between the two groups. No death occurred in the perioperative period in both groups.ConclusionIt is feasible and safe to omit the chest tube after thoracoscopic pneumonectomy for patients who meet the criteria.
Objective To evaluate the clinical significance of operative indication in patients with lung cancer accompanied by lung dysfunction using cardiopulmonary exercise test (CPET). Methods Before operation, using CPET with step program, work rate(W%), maximal oxygen uptake(VO2%P), maximal oxygen uptake per kilogram(VO2/kg) and other indexes were tested in the end of load exercise in 195 patients with lung cancer accompanied by lung dysfunction. Chi-square test and logistic regression analysis were performed for the abnormal rate of indexes mentioned above in patients with or without postoperative respiratory failure. Results After pneumonectomy, W%,VO2%P, VO2/kg, metabolic equivalent (MET), minute ventilation(VE) and respiratory frequency(BF) in patients with postoperative respiratory failure were lower than those in patients with non-postoperative respiratory failure (Plt;0.05 or 0.01). Logistic regression analysis showed that VElt;30 L/min and (BFlt;30) times/min were more related to the morbidity of postoperative respiratory failure than other indexes. As for the patients with lung dysfunction treated by lobectomy, this indexes didn’t show any significant difference between patients with or without postoperative respiratory failure. However, this indexes decreased in patients with postoperative respiratory failure whose ratio of forced expiratory volume in one second to forced vital capacity (FEV1%) were lower than 60%(Plt;0.05 or 0.01). Logistic regression analysis showed that VO2%Plt;60% related to the morbidity of postoperative respiratory failure. Conclusion CPET is useful to evaluate the operative indication in patients with lung cancer accompanied by lung dysfunction. VO2%Plt;60% should be selected as a evaluating index.
Abstract： Objective To analyze possible associated risk factors of postoperative pulmonary complications (PPC) after lung resection in order to decrease the incidence and mortality of PPC. Methods We reviewed the data of 302 patients including 228 males and 74 females undergoing lung resection from January 2007 to December 2009 in our department. The age of the patients ranged from 23 to 91 years old with an average age of 63.38 years. Based on the present definition of PPC, we recorded the related information and data before, during and after the operation, and observed the rate of PPC. The independent risk factors of PPC were evaluated by multiple logistic regression analysis. Results A total of 22 patients (7.28%) died during the operation and 75 patients (24.83%) experienced 110 times of PPC, the majority of which were prolonged air leak/bronchopleural fistula (8.94%, 27/302), nosocomial pneumonia (6.95%, 21/302) and acute respiratory failure (6.29%, 19/302). The results of logistic regression analysis showed that an American Society of Anesthesiology (ASA) score ≥3 (OR=2.400，P=0.020) and prolonged duration of immediate postoperative mechanical ventilation (OR=1.620，P=0.030) were independent factors associated with the development of PPC.Conclusions The ASA score based on the patients’ general condition and the function status of the main organs, and the prolonged duration of immediate postoperative mechanical ventilation are independent risk factors of PPC. In order to decrease the PPC rate, more attention should be paid to perfecting preoperative preparation, improving the function and condition of the organs, preserving pulmonary function and decreasing the duration of immediate postoperative mechanical ventilation for patients with high risk factors.
A 54-year-old asymptomatic man underwent a video-assisted thoracoscopic left pneumonectomy for squamous-cell carcinoma. During the surgery, a complete left pericardial defect was unexpectedly discovered, but no special intervention was made. The preoperative chest CT was reciewed, which showed the heart extended unusually to the left, but the left pericardial defect was not evident. The operation time was 204 min and the patient was discharged from hospital upon recovery 9 days after the surgery. The pathological result indicated moderately differentiated squamous-cell carcinoma (T2N1M0, stage ⅡB), and metastasis was found in the parabronchial lymph nodes (3/5). The patient did not receive chemotherapy after the surgery, and there was no signs of recurrence 6 months after the surgery. Complete pericardial defects usually do not endanger the lives of patients, and if the patient is asymptomatic, pneumonectomy is feasible.