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        find Keyword "propensity score matching" 27 results
        • The relationship between mean daily step counts and pulmonary complications after thoracoscopic lobectomy in elderly patients: A propensity score matching study

          Objective To investigate the relationship between preoperative mean daily step counts and pulmonary complications after thoracoscopic lobectomy in elderly patients. Methods From 2018 to 2021, the elderly patients with pulmonary complications after thoracoscopic lobectomy were included. A 1∶1 propensity score matching was performed with patients without pulmonary complications. The clinical data were compared between the two groups. ResultsTotally, 100 elderly patients with pulmonary complications were enrolled, including 78 males and 22 females, aged 66.4±4.5 years. And 100 patients without pulmonary complications were matched, including 71 males and 29 females aged 66.2±5.0 years. There was no significant difference in the preoperative data between the two groups (P>0.05). Compared to the patients with pulmonary complications, the ICU stay was shorter (8.1±4.4 h vs. 12.9±7.5 h, P<0.001), the first out-of-bed activity time was earlier (8.8±4.5 h vs. 11.2±6.1 h, P=0.002), and the tube incubation time was shorter (19.3±9.2 h vs. 22.5±9.4 h, P=0.015) in the patients wihout pulmonary complications. There was no statistical difference in other perioperative data between the two groups (P>0.05). The mean daily step counts in the pulmonary complications group were significantly less than that in the non-pulmonary complications group (4 745.5±2 190.9 steps vs. 6 821.1±2 542.0 steps, P<0.001). The daily step counts showed an upward trend for three consecutive days in the two groups, but the difference was not significant. Conclusion The decline of preoperative mean daily step counts is related to pulmonary complications after thoracoscopic lobectomy in elderly patients. Recording daily step counts can promote preoperative active exercise training for hospitalized patients.

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        • Long-term results of tricuspid valve replacement in 608 patients: A propensity score matching analysis

          Objective To explore the evolving strategies and compare perioperative and long-term outcomes of tricuspid valve replacement (TVR) in recent 20 years in our hospital.MethodsBetween 1998 and 2018, the clinical data of 608 patients who underwent TVR at the Department of Cardiac Surgery, Guangdong Provincial People’s Hospital were retrospectively analyzed. There were 201 males and 407 females, with a median age of 47.0 (36.0, 57.0) years. Patients were divided into a biological tricuspid valve (BTV, n=427) group and a mechanical tricuspid valve (MTV, n=181) group. Propensity score matching was used to balance the baseline difference. Surgical strategy evolving, postoperative and long-term outcomes were analyzed between the two groups.ResultsSince 2008, the usage ratio of biological valves was significantly higher than that of mechanical valves. Seventy-nine (13.0%) patients died in hospital after TVR. Before propensity score matching, the postoperative mortality of the BTV group was higher than that of the MTV group (15.2% vs. 7.7%, P=0.012), and there was no statistical difference between the two groups after matching (10.4% vs. 7.2%, P=0.372). The duration of postoperative ventilator support in the BTV group was longer than that in the MTV group [22.0 (15.0, 37.0) h vs. 19.0 (11.0, 27.0) h, P=0.003], and the incidence of postoperative dialysis and re-thoracotomy exploring for bleeding was higher in the BTV group (8.9 % vs. 2.8%, 9.4% vs. 6.6%, respectively). However, there was no statistical difference in mortality after matching. The median follow-up time of discharged patients was 101.0 (65.0, 147.0) months, ranged from 1 to 265 months, and the follow-up rate was 82.2%. During the follow-up period, there were 101 deaths (19.1%) of whom 68 were from the BTV group and 33 from the MTV group. The survival rates at 1 year, 5 years, 10 years, 15 years and 20 years of all patients were 85.0% (95%CI 82.2-87.9), 78.9% (95%CI 75.7-82.4), 71.1% (95%CI 67.3-75.3), 59.7% (95%CI 54.2-65.6) and 51.7% (95%CI 43.3-60.7), and there was no statistical difference between the two groups after matching (P=0.46). The median time of tricuspid valve failure was 84.0 (54.0-111.0) months.ConclusionTVR is associated with high perioperative risks. There is no statistical difference in early mortality and long-term survival between biological and mechanical valve, while patients with mechanical valve has higher risk of re-operation for valve failure. Therefore, the type of prosthetic valve can be selected according to the patients' age, physical condition and the doctors’ experience.

          Release date:2021-07-28 10:02 Export PDF Favorites Scan
        • Safety comparison of laparoscopic hepatic blood flow occlusion for hepatectomy in HCC patients with cirrhosis

          ObjectiveTo investigate the effect of intermittent Pringle (IP) and continuous hemi-hepatic vascular inflow occlusion (CHVIO) on the prognosis of patients with hepatocellular carcinoma (HCC) complicated with cirrhosis in laparoscopic liver resection (LLR).MethodsRetrospective analysis of consecutive 107 LLR patients with HCC complicated with liver cirrhosis at West China Hospital of Sichuan University between January 2015 and December 2017 was performed. Patients were divided into an IP group and a CHVIO group according to the method of hepatic vascular occlusion, intraoperative and postoperative outcome indicators and short-term prognosis were compared between the two groups.ResultsPatients in the IP group had shorter operative time [(237+90) min vs (285+118) min, P=0.041] and less blood loss [(279+24) mL vs (396+35) mL, P=0.012], without a significant increase in postoperative liver function [including ALT, AST, TBIL, and ALB], postoperative complications, induced flow, 1-year disease-free survival, and1-year survival (P>0.05).ConclusionsIP can reduce the operative time and blood loss in patients with HCC complicated with cirrhosis in LLR, and will not lead to deterioration of liver function, it is a recommended hepatic inflowocclusion method.

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        • Robotic lobectomy versus thoracoscopic lobectomy in treatment for clinical N0 lung malignant tumor≥3 cm: A propensity score matching study

          ObjectiveTo investigate the effectiveness and safety of robotic lobectomy in clinical N0 lung malignant tumor≥3 cm. MethodsWe retrospectively analyzed the clinical data of 182 patients with lung malignant tumor≥3 cm receiving robotic or thoracoscopic lobectomy at Shanghai Chest Hospital in 2019. The patients were divided into a robotic surgery group (RATS group) and a thoracoscopic surgery group (VATS group). There were 39 males and 38 females with an average age of 60.55±8.59 years in the RATS group, and 51 males and 54 females with an average age of 61.58±9.30 years in the VATS group. A propensity score matching analysis was applied to compare the operative data between the two groups. ResultsA total of 57 patients were included in each group after the propensity score matching analysis. Patients in the RATS group had more groups of N1 lymph node dissected (2.53±0.83 groups vs. 2.07±0.88 groups, P=0.005) in comparison with the VATS group. No statistical difference was found in operation time, blood loss, postoperative hospital stay, number of N1 and N2 lymph nodes dissected, groups of N2 lymph node dissected, lymph node upstage rate or postoperative complications. The hospitalization cost of RATS was higher than that of VATS (P<0.001). ConclusionIn contrast with thoracoscopic lobectomy, robotic lobectomy has similar operative safety, and a thorough N1 lymphadenectomy in patients with clinical N0 lung malignant tumor≥3 cm.

          Release date:2022-04-28 09:22 Export PDF Favorites Scan
        • Evaluation of day surgery versus inpatient surgery for varicose vein in China: a retrospective study based on propensity score matching method

          ObjectiveTo compare the intraoperative, postoperative indicators and economic costs of varicose veins patients between day surgery and inpatient surgery, and to explore the safety and benefit of large-scale varicose veins day surgery in China.MethodsA retrospective study was conducted to collect varicose veins patients in West China Hospital of Sichuan University from January 2016 to January 2019. Patients were divided into the day surgery group and the inpatient surgery group, and the subjects were matched by the propensity score matching (PSM) method according to the basic characteristic data. Intraoperative and postoperative indicators and economic costs were compared between the two groups.ResultsA total of 1 806 varicose vein patients were enrolled in the study, and 502 patients were enrolled in each of the two groups after PSM matching. After matching, there were no statistically significant differences in gender, age, nationality, marriage status, working status, residence, number of operative legs, medical insurance type, grade of American Society of Anesthesiologists, and complications (including hypertension, diabetes, coronary heart disease, and respiratory system diseases) between the two groups (P>0.05), which were comparable and the differences were not statistically significant. Compared with the inpatient surgery group, the day surgery group had shorter hospital stay, less intraoperative infusion volume, lower total cost, bed cost, nursing cost, drug cost, examination cost, medical insurance, and out-of-pocket (P<0.05). ConclusionThe varicose veins day surgery is not only safe and effective, but also can reduce the medication insurance payment.

          Release date:2021-02-02 04:41 Export PDF Favorites Scan
        • Clinical outcomes of minimally invasive coronary artery bypass grafting in 239 patients: A propensity score matching study

          Objective To investigate the perioperative clinical effects and follow-up results of minimally invasive coronary artery bypass grafting (MICS CABG) versus conventional coronary artery bypass grafting (CABG) in thoracotomy. Methods The patients who received off-pump CABG in Beijing Anzhen Hospital from January 2017 to October 2021 were collected. Among them, the patients receiving MICS CABG performed by the same surgeon were divided into a minimally invasive group, and the patients receiving median thoracotomy were into a conventional group. By propensity score matching, preoperative data were balanced. Perioperative and postoperative follow-up data of the two groups were compared. Results A total of 890 patients were collected. There were 211 males and 28 females, aged 60.54±9.40 years in the minimally invasive group, and 487 males and 164 females, aged 62.31±8.64 years in the conventional group. After propensity score matching, there were 239 patients in each group. Compared with the conventional group, patients in the minimally invasive group had longer operation time, shorter drainage duration, less drainage volume on the first postoperative day, shorter postoperative hospital stay, and lower rate of positive inotropenic drugs use, while there was no statistical difference in the mean number of bypass grafts, ICU stay, ventilator-assisted time, blood transfusion rate or perioperative complications (P>0.05). During the median follow-up of 2.25 years, there was no statistical difference in major adverse cardiovascular and cerebrovascular events, including all-cause death, stroke or revascularization between the two groups (P>0.05). ConclusionReasonable clinical strategies can ensure perioperative and mid-term surgical outcomes of MICS CABG not inferior to conventional CABG. In addition, MICS CABG has the advantages in terms of postoperative hospital stay, postoperative drainage volume, and rate of positive inotropic drugs use.

          Release date:2023-07-10 04:06 Export PDF Favorites Scan
        • Risk factors for postoperative chylothorax after robot-assisted versus video-assisted thoracic surgery in radical lung cancer resection: A propensity score matching study

          ObjectiveTo compare the postoperative chylothorax outcomes of robot-assisted thoracic surgery (RATS) and video-assisted thoracoscopic surgery (VATS), analyze the risk factors for postoperative chylothorax after minimally invasive radical lung cancer resection and explore possible prevention and control measures. MethodsBetween June 2012 and September 2020, 1083 patients underwent minimally invasive pulmonary lobectomy and systematic lymph node dissection in our hospital, including 578 males and 505 females with an average age of 60.6±9.4 years. Patients were divided into two groups according to the operation methods: a RATS group (499 patients) and a VATS group (584 patients). After propensity score matching, 434 patients were included in each group (868 patients in total). Chylothorax and other perioperative indicators were compared between the two groups. Univariate and multivariate logistic regression analyses were performed to identify risk factors for postoperative chylothorax. ResultsOverall, 24 patients were diagnosed with chylothorax after surgery. Compared with the VATS group, the rate of chylothorax was higher (3.9% vs. 1.6%, P=0.038), the groups and numbers of dissected lymph nodes were more (both P<0.001), and the intraoperative blood loss was significantly less (P<0.001) in the RATS group. There was no statistical difference in the postoperative hospital stay (P=0.256) or chest tube drainage time (P=0.504) between the two groups. Univariate analysis showed that gender (P=0.021), operation approach (P=0.045), smoking (P=0.001) and the groups of dissected lymph nodes (P<0.001) were significantly associated with the development of chylothorax. Multivariate analysis showed that smoking [OR=4.344, 95%CI (1.149, 16.417), P=0.030] and the groups of dissected lymph nodes [OR=1.680, 95%CI (1.221, 2.311), P=0.001] were the independent risk factors for postoperative chylothorax. ConclusionCompared with the VATS, the rate of chylothorax after RATS is higher with more dissected lymph nodes and less blood loss. The incidence of chylothorax after minimally invasive radical lung cancer resection is higher in the patients with increased dissected lymph node groups and smoking history.

          Release date:2022-04-28 09:22 Export PDF Favorites Scan
        • Comparison of short-term outcomes between full-port robotic and thoracoscopic mediastinal tumor resection: A propensity score matching study

          ObjectiveTo analyze and compare the perioperative efficacy difference between full-port Da Vinci robotic surgery and thoracoscopic surgery in patients with mediastinal tumor resection. MethodsThe data of 232 patients with mediastinal tumors treated by the same operator in the Department of Thoracic Surgery of the Second Affiliated Hospital of Harbin Medical University were included. There were 103 (44.4%) males and 129 (55.6%) females, with an average age of 49.7 years. According to the surgical methods, they were divided into a robot-assisted thoracic surgery (RATS) group (n=113) and a video-assisted thoracoscopic surgery (VATS) group (n=119). After 1 : 1 propensity score matching, 57 patients in the RATS group and 57 patients in the VATS group were obtained. ResultsThe RATS group was better than the VATS group in the visual analogue scale pain score on the first day after the surgery [3.0 (2.0, 4.0) points vs. 4.0 (3.0, 5.0) points], postoperative hospital stay time [4.0 (3.0, 5.5) d vs. 6.0 (5.0, 7.0) d] and postoperative catheterization time [2.0 (2.0, 3.0) d vs. 3.0 (3.0, 4.0) d] (all P<0.05). There was no statistical difference between the two groups in terms of intraoperative blood loss, postoperative complications, postoperative thoracic closed drainage catheter placement rate or postoperative total drainage volume (all P>0.05). The total hospitalization costs [51 271.0 (44 166.0, 57 152.0) yuan vs. 35 814.0 (33 418.0, 39 312.0) yuan], operation costs [37 659.0 (32 217.0, 41 511.0) yuan vs. 19 640.0 (17 008.0, 21 421.0) yuan], anesthesia costs [3 307.0 (2 530.0, 3 823.0) yuan vs. 2 059.0 (1 577.0, 2 887.0) yuan] and drug and examination costs [9 241.0 (7 987.0, 12 332.0) yuan vs. 14 143.0 (11 620.0, 16 750.0) yuan] in the RATS group was higher than those in the VATS group (all P<0.05). ConclusionRobotic surgery and thoracoscopic surgery can be done safely and effectively. Compared with thoracoscopic surgery, robotic surgery has less postoperative pain, shorter tube-carrying time, and less postoperative hospital stay, which can significantly speed up the postoperative recovery of patients. However, the cost of robotic surgery is higher than that of thoracoscopic surgery, which increases the economic burden of patients and is also one of the main reasons for preventing the popularization of robotic surgery.

          Release date:2022-04-28 09:22 Export PDF Favorites Scan
        • Associations of preoperative red cell distribution width with mortality and morbidity in patients underwent liver transplantation: a retrospectively observational study

          ObjectiveTo investigate the associations of preoperative red cell distribution width (RDW) with mortality and morbidity in patients underwent liver transplantation. MethodsThis investigation was a retrospective study, the patients underwent liver transplantation met the inclusion criteria from June 2017 to May 2020 in the West China Hospital of Sichuan University were enrolled. The patients were divided into RDW≤14.5% group and RDW>14.5% group according to the normal RDW critical value (14.5%). The propensity score matching (PSM) was used to adjust the baseline characteristics. The primary outcome was 1-year mortality. The secondary outcomes included 1-year survival, 30-day mortality, incidence of early allograft dysfunction, acute kidney injury, renal replacement therapy, and pulmonary complications, as well as ICU stay and postoperative hospital stay. ResultsA total of 303 patients who met the analysis conditions were included. After PSM, 57 patients in each group were matched. There were no significant differences between the two groups in the baseline data such as the gender, age, body mass index (BMI), initial diagnosis, MELD score, Child-Pugh grade of the recipients, and the gender, age, and BMI of the donors (P>0.05). The 1-year [22.8% (13/57) versus 5.3% (3/57), χ2=7.27, P=0.007] and 30-day [15.8% (9/57) versus 3.5% (2/57), χ2=4.93, P=0.026] mortality of the patients with RDW >14.5% were higher than that of the patients with RDW ≤14.5% . The Kaplan-Meier survival curve showed that the 1-year survival of the patients with RDW ≤14.5% after liver transplantation was better than that of the patients with RDW >14.5% [hazard ratio=4.75, 95%CI (1.78, 12.67), P=0.007], but there were no significant differences between the two groups in the incidence of early graft dysfunction, acute renal injury, renal replacement therapy, and pulmonary complications, as well as postoperative hospital stay and ICU stay (P>0.05). ConclusionPreliminary results of this study indicate that preoperative RDW of patients underwent allogeneic liver transplantation is associated with1-year mortality, 30-day mortality, and 1-year survival.

          Release date:2022-06-08 01:57 Export PDF Favorites Scan
        • Long term effect of percutaneous radiofrequency ablation and repeated hepatectomy in treatment of advanced recurrent liver cancer

          ObjectiveTo compare clinical effect of percutaneous radiofrequency ablation (RFA) and open repeated hepatectomy (ORH) in treatment of liver cancer with late recurrence (recurrence time >12 months) and single tumor diameter ≤5 cm.MethodsThe patients with advanced intrahepatic recurrence after first operation for liver cancer in this hospital from January 2013 to December 2019 were retrospectively collected, who were treated with ORH (ORH group) or percutaneous RFA (RFA group) and met the inclusion criteria. The overall survival rate and disease-free survival rate of the two groups were compared after 1∶1 matching by propensity score matching (PSM), while the factors affecting survival were stratified.ResultsA total of 244 patients with recurrent liver cancer were collected, including 134 patients in the ORH group, 110 patients in the RFA group. The patients in the two groups were matched with 1∶1 by PSM, 90 patients in each group. The median overall survival time of the ORH group and the RFA group was 54 months and 45 months, respectively. There were no significant differences in the curves of cumulative overall survival and cumulative disease-free survival between the two groups (P=0.221, P=0.199). The incidence of severe complications in the ORH group was higher than that in the RFA group (10.00% versus 2.22%, P=0.029). A further subgroup analysis showed that the overall survival time of the ORH group was longer than that of the RFA group when the diameter of recurrent liver cancer was 3 to 5 cm (P=0.035), which had no significant differences for the patients with AFP (>400 μg/L or ≤400 μg/L), tumors number (single or multiple), and tumor diameter ≤3 cm between the two groups (P>0.05).ConclusionsPercutaneous RFA is effective and safe in treatment of advanced recurrent liver cancer, its overall survival and disease-free survival are similar to ORH treatment. However, when diameter of recurrent tumor is3–5 cm, ORH treatment has a advantage in prolonging survival time of patients.

          Release date:2021-02-08 07:10 Export PDF Favorites Scan
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