Abstract： Objective To analyze risk factors associated with postoperative respiratory failure in patients with valvular surgery. Methods Between January 2001 and November 2010, clinical data of 618 patients with 339 males and 279 fameles at age of 10-74（44.01±13.95）years,undergoing valvular operations were investigated retrospectively. We divided the patients into two groups according to the presence （74 patients）or absence（544 patients）of postoperative respiratory failure. Its risk factors were evaluated by univariate and multivariate logistic regression analysis. Results The hospital mortality rate of valvular surgery was 6.1%（38/618）.The morbidity rate of respiratory failure was 12.0%（74/618） with hospital mortality rate at 17.6%（13/74） which was significantly higher than those patients without postoperative respiratory failure at 4.6%（25/544, χ2=18.994, P=0.000）. Univariate analysis showed age＞ 65 years（P=0.005）, New York Heart Association（NYHA）classⅣ（P=0.014）, election fraction＜ 50.0%（P=0.003）, cardiopulmonary bypass time＞ 3 h（P=0.001）, aortic cross clamping time＞ 2 h（P=0.008）, concomitant operation（ valvular operation with coronary artery bypass grafting, Bentall or radiofrequency ablation maze operation（P=0.000）, reoperation（P=0.012）, postoperative complications （P=0.000）, and blood transfusion＞ 2 000 ml（P=0.000） were important risk factors for postoperative respiratory failure. Multivariate logistic regression showed that concomitant operation（P=0.003）, reoperation（P=0.010）, postoperative complications（P=0.000）, and blood transfusion＞2 000 ml（P=0.012）were significant independent predictive risk factors. Conclusion This study suggest that patients with predictive risk factors of postoperative respiratory failure need more carefully treated. The morbidity of these patients would be reduced through improving perioperative management, shortening cardiopulmonary bypass time and reducing postoperative complications.
ObjectiveTo systematically review the efficacy of aerobic training, resistance training and aerobic training combined with resistance training on non-dialysis patients with chronic kidney diseases. MethodsPubMed, The Cochrane Library, EMbase, EBSCO, Web of Science, VIP, WanFang Data and CNKI databases were electronically searched to collect randomized controlled trials (RCTs) of three types of exercise therapy on patients with chronic kidney disease from January 2012 to January 2022. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies; then, network meta-analysis was performed by using RevMan 5.4 software and R software. ResultsA total of 22 RCTs involving 1 633 patients were included. The results of network meta-analysis showed that: compared with the control group, aerobic training, and resistance training reduced resting systolic blood pressure; aerobic training, resistance training reduced resting diastolic blood pressure; aerobic training reduced total cholesterol levels; aerobic training improved peak oxygen uptake; aerobic training combined with resistance training improved six-minute walking test. Aerobic training, resistance training, and aerobic training combined with resistance training improved glomerular filtration rate. The probability sorting results showed that aerobic training had the most significant effect on the improvement of peak oxygen uptake, C-reactive protein, total cholesterol, low-density lipoproteins, and high-density lipoproteins; resistance training had the most significant effect on the improvement of systolic blood pressure, diastolic blood pressure and glomerular filtration rate; aerobic exercise combined with resistance training had the most significant effect on the improvement of body mass index, triglycerides, and six-minute walking test. ConclusionCurrent evidence shows that aerobic training has an advantage in reducing total cholesterol levels and increasing peak oxygen uptake, resistance training has an advantage in improving blood pressure and glomerular filtration rate and aerobic training combined with resistance training has an advantage in improving walking ability of patients with non-dialysis chronic kidney disease.