ObjectiveTo comprehensively evaluate the incidence of venous thromboembolism (VTE) after colorectal surgery.MethodsWe searched PubMed/Medline, Web of science, and Embase databases by computer, collected studies by using the combination of corresponding English keywords. Then, we screened literatures according to inclusion and exclusion criteria, and evaluated the quality of literatures by using Downs and Black tools. Finally, we used Stata 15.1 and R Project 3.4.1 for meta-analysis.ResultsA total of 15 studies (n=721 730) were included in the meta-analysis. The combined incidence of VTE after colorectal surgery was 2.26% [95% CI was (1.93%, 2.61%), P<0.000 1], and the incidence of VTE after adjusting for publication bias was 1.82% [95% CI was (1.53%, 2.13%), P<0.000 1]. Meta regression analysis revealed that patients’ age (P<0.000 1), smoking (P=0.000 4), open surgery (P=0.020 0), preoperative albumin level (P=0.023 6), and malignant tumor (P=0.036 4) were correlated with the incidence of VTE after colorectal surgery, which may be potential factors for heterogeneity.ConclusionsThe incidence of VTE after colorectal surgery is not insignificant. It is necessary for clinicians to be vigilant about the occurrence of VTE after colorectal surgery and provide appropriate preventive interventions in combination with patients’ own risk factors, disease-related factors, and surgical factors.
Objective To explore the treatment of dislocation after total hip replacement. Methods From July 1997 to October 2004, 23 casesof dislocation after total hip replacement were treated,including 9 males and 14 females and aging 5379 years. The CT and serial X-ray films were taken to observe the position of prostheses. The strength of their hip abductor was also tested. In the patients without loosening, closed reduction was attempted at first. The stability of hip was tested. If closed reduction failed, the offset or/and parts of the components was adjusted, then the capsular was repaired. If instabilitystill existed, revision was adopted. Results In 23 cases of dislocation, 10 cases were treated successfully by closed reduction. In 12 patients who failed reduction, 5 were given open reduction combined with capsular repairing; the offset was adjusted by lengthening femoral head in 2 cases; rim liners were elevated in 2 cases; and larger offset was used and abnormal liner was adjusted in 1 case. Revision was used in 1 case having loosening and 2 cases having instability. Allpatients were followed up 1 year to 5 years (1.9 years on average). The Harrisscoring was 7294 (87 on average). Conclusion The treatment of dislocation after total hip replacement should use different ways according to the causes of dislocation and the stability of hip.
Objective To evaluate the quality of controlled trials on 131I therapy for thyroglobulin positive and radioactive iodine negative metastases（131I WBS-/Tg+）. Methods We electronically searched MEDLINE (1966 to Mar. 2004), EMBASE (1984 to 2003), The Cochrane Central Register of Controlled Trial, CENTRAL (Issue 2, 2004), CBMdisc (1978 to 2004) and CNKI (1994 to 2004), and handsearched 5 radiotherapy and endocrinology journals (Jan. 1980 to Apr. 2003). The methodological quality of included studies was assessed by using quality assessment criteria of the Cochrane systematic review guideline. Results Three non-randomized controlled trials were included. One was historical controlled trial, and two prospective trials. The sample sizes of three trials were 26, 60 and 70 respectively without mentioning the calculation base. The comparability of baseline was mentioned but not comparable across the trials. No double blind studies were used in the assessment of 131I efficacy. The time of follow-up varied from 2 to 15 years. None studies mentioned the side effects of 131I therapy for 131I WBS-/Tg+ metastases. Only two studies applied statistical methods properly. Conclusions Problems about allocation of groups, double blind, sample size, and follow-up period continue to exist in published controlled trials. RCT or prospective controlled trials of high quality are urgently needed in order to define the efficacy and safety of 131I therapy for 131I WBS-/Tg+ metastases.
ObjectiveTo analyze the recovery rule of atrial contractility (AC) function after Maze Ⅳ procedure of valvular atrial fibrillation (AF).MethodsIn our hospital from March 2016 to April 2018, 103 patients who underwent cryoablation Maze Ⅳ procedure due to mitral valve lesions associated with persistent or long-term persistent AF were enrolled. There were 42 males and 61 females, with an average age of 58.5±9.1 years. Electrocardiogram and echocardiography were followed up at discharge and 1, 3, 6, 12 months after procedure. A multivariate Cox analysis of predictive factors for AC recovery was applied.ResultsAll the 103 patients were followed up for 1 year. The recovery rate of AC increased gradually after operation. It was not until 3 months after procedure that most of the right atrial contractility (RAC) was accompanied by synchronous recovery of the corresponding left atrial contractility (LAC, Kappa coefficient≥0.40, P<0.05). However, the coexistence of sinus rhythm (SR) and bilateral AC was not consistent well until 1 year after operation (Kappa coefficient≥0.40, P<0.05). One year after procedure, the recovery rates of SR and bilateral AC were 86.4% (89/103) and 66.0% (68/103) respectively. By Cox multivariate regression analysis, longer preoperative AF duration (P=0.040), larger preoperative left atrial diameter (LAD, P=0.003), and AC deletion 3 months after surgery (P=0.037) were predictive factors for AF recurrence in the middle and advanced stages (>3 months) after Maze surgery. At the same time, longer preoperative AF duration and larger preoperative LAD were also negative predictors of middle and late recovery of LAC and bilateral AC (All P<0.05). Receiver operating characteristic curve analysis showed that the best critical value of preoperative AF time and preoperative LAD for prediction of AC recovery was 37 months (sensitivity 99.6%, specificity 76.3%) and 60.5 mm (sensitivity 98.5%, specificity 78.9%), respectively.ConclusionThe recovery of AC after Maze procedure is a dynamic improvement process. Early recovery of AC is beneficial to the stable maintenance of SR in the future. Prolonged duration of AF and enlarged LAD have adverse effects on the outcome of Maze Ⅳ procedure.
ObjectivesTo explore the efficacy and prognostic factors of neuroendoscopic intracerebral hematoma evacuation in the treatment of hypertension-related intracerebral hemorrhage.MethodsA total of 122 patients with hypertension-related intracerebral hemorrhage treated in our hospital from October 2015 to May 2019 were categorized into experimental group (n=62) and control group (n=60). The experimental group was treated with endoscopic intracerebral hematoma removal, while the control group was treated with traditional craniotomy. The operative indexes, postoperative recovery, serum endothelin, IL-6, CRP levels and the incidence of postoperative complications were observed and compared between the two groups, and the relevant factors affecting the prognosis of patients undergoing neuroendoscopic intracerebral hematoma evacuation were analyzed.ResultsThe operation time, intraoperative blood loss, hematoma clearance rate, ICU treatment time, the volume of brain edema 7 days after operation, the postoperative intracranial pressure, NIHSS score and ADL score in experimental group were significantly superior to those in control group. The levels of serum endothelin, IL-6 and CRP in the experimental group were significantly lower than those in the control group after operation. The incidence of complications in the experimental group was lower than that in control group. Univariate analysis showed that the prognosis of patients undergoing neuroendoscopic evacuation of intracerebral hematoma was significantly correlated with the history of hypertension, preoperative GCS score, the amount of bleeding and whether been broken into the ventricle (P<0.05), but not with age, sex and location of hemorrhage (P>0.05). Multivariate logistic regression analysis showed that the history of hypertension above 10 years, blood loss above 50 mL, intraventricular rupture and preoperative GCS score were the risk factors affecting the prognosis of patients undergoing neuroendoscopic intracerebral hematoma evacuation.ConclusionsCompared with traditional craniotomy, neuroendoscopic evacuation of intracerebral hematoma has the advantages of better curative effect and lower incidence of postoperative complications in the treatment of hypertension-related intracerebral hemorrhage. The history of hypertension above 10 years, bleeding volume above 50 mL, breaking into the ventricle and preoperative GCS score are the risk factors affecting the prognosis of patients undergoing neuroendoscopic intracerebral hematoma evacuation.
ObjectiveTo explore the clinical efficacy of the ultrasound-guided intra-articular injection of platelet-rich plasma (PRP) in the treatment of patients with different stages of knee osteoarthritis.MethodsWe retrospectively analyzed the clinical characteristics and X-ray data of patients with knee osteoarthritis who received ultrasound-guided intra-articular injection of PRP in the Department of Rehabilitation Medicine at Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University between May 2018 and June 2019. The patients were grouped according to the Kellgren & Lawrence Classification (K&L 0, Ⅰ, Ⅱ, Ⅲ, and Ⅳ). All the patients received four injections with a one-week interval. The Visual Analogue Scale (VAS) and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) were used to evaluate the clinical efficacy before the injection, and 3 and 6 months after the injection. Adverse reactions were recorded.ResultsA total of 102 patients were included without any grade 0 cases. There were 20 patients in K&L Ⅰ group, 37 in Ⅱ group, 31 in Ⅲ group, and 14 in Ⅳ group. No adverse event was reported. Significant differences of VAS scores and WOMAC index were observed in Ⅰ, Ⅱ and Ⅲ groups at the 3rd and 6th month follow-up (P<0.05). VAS and WOMAC scores of the three groups at the 3rd and 6th month after the treatment were significantly improved compared with those before the treatment (P<0.05). There was no significant difference in VAS score at the 3rd or 6th month after the treatment three groups (P>0.05). For K&L Ⅰ group, there was no statistically significant difference in WOMAC score at the 3rd or 6th month after the treatment (P>0.05). However, the WOMAC scores at the 3rd month after the treatment were better than those at the 6th month in K&L Ⅱ and Ⅲ groups (P<0.05). There was no significant time-depended changes in VAS score or WOMAC score in K&L Ⅳ group (P>0.05).ConclusionThe ultrasound-guided intra-articular PRP injection is safe and effective for pain relief and function improvement in patients with knee osteoarthritis at the early and middle stage.
ObjectiveTo explore the clinical efficacy and safety of ultrasound-guided intra-articular injection of platelet-rich plasma (PRP) in the treatment of avascular necrosis of the femoral head.MethodsWe retrospectively collected and analyzed the clinical characteristics, imaging data, and clinical outcomes of patients with femoral head necrosis who received ultrasound-guided intra-articular PRP injection in the Department of Rehabilitation Medicine of Sun Yat-sen Memorial Hospital, Sun Yat-sen University between June 2019 and June 2020. All the patients received 4 injections at one-week intervals. The Visual Analogue Scale (VAS), Western Ontario and McMaster University Osteoarthritis Index (WOMAC), and Harris Hip Joint Function Scale (HHS) were evaluated before treatment and 1 month, 3 months, and 6 months after the first injections. Adverse events were recorded. The normally distributed data were presented as mean±standard deviation, and analyzed by one-way repeated measures analysis of variance; the non-normally distributed data were presented as median (lower quartile, upper quartile), and analyzed by Friedman test.ResultsA total of 29 patients were included. According to the Association Research Circulation Osseous classification standard, 2 patients were classified as stageⅠ, 11 as stageⅡ, 11 as stage Ⅲ, and 5 as stage Ⅳ. Before treatment and 1 month, 3 months, and 6 months after treatment, the VAS scores were 7.0 (5.5, 8.0), 4.0 (3.0, 5.0), 3.0 (2.0, 3.0), and 3.0 (2.0, 5.0), respectively, the WOMAC scores were 39.27±11.70, 28.34±8.08, 22.82±6.09, and 24.13±7.55, respectively, and the HHS were 46.0 (40.0, 64.0), 71.0 (57.5, 75.0), 78.0 (68.0, 80.5), and 78.0 (64.0, 80.0), respectively. The time effects in VAS (χ2=65.423, P<0.001), WOMAC (F=46.710, P<0.001), and HHS (χ2=66.347, P<0.001) were all statistically significant. There were significant differences in each index between the values 1 month, 3 months, and 6 months after treatment and those before treatment respectively, and there was also a significant difference in each index between the value 1 month after treatment and that 3 months after treatment (P<0.05). There was no significant difference in any indicator between the value 6 months after treatment and that 3 months after treatment (P>0.05). Significant difference was shown between the value 6 months after treatment and that 1 month after treatment in WOMAC (P=0.016), but not in VAS or HHS (P>0.05). No obvious adverse event was reported during the follow-up period.ConclusionsUltrasound-guided intra-articular PRP injection can effectively alleviate the pain and improve the hip joint function of patients with femoral head necrosis for at least 6 months. However, randomized controlled studies with a larger sample size and longer-term follow-up are needed in the future to confirm the efficacy and safety of PRP injection in femoral head necrosis.
Aiming at the problems of individual differences in the asynchrony process of human lower limbs and random changes in stride during walking, this paper proposes a method for gait recognition and prediction using motion posture signals. The research adopts an optimized gated recurrent unit (GRU) network algorithm based on immune particle swarm optimization (IPSO) to establish a network model that takes human body posture change data as the input, and the posture change data and accuracy of the next stage as the output, to realize the prediction of human body posture changes. This paper first clearly outlines the process of IPSO's optimization of the GRU algorithm. It collects human body posture change data of multiple subjects performing flat-land walking, squatting, and sitting leg flexion and extension movements. Then, through comparative analysis of IPSO optimized recurrent neural network (RNN), long short-term memory (LSTM) network, GRU network classification and prediction, the effectiveness of the built model is verified. The test results show that the optimized algorithm can better predict the changes in human posture. Among them, the root mean square error (RMSE) of flat-land walking and squatting can reach the accuracy of 10−3, and the RMSE of sitting leg flexion and extension can reach the accuracy of 10−2. The R2 value of various actions can reach above 0.966. The above research results show that the optimized algorithm can be applied to realize human gait movement evaluation and gait trend prediction in rehabilitation treatment, as well as in the design of artificial limbs and lower limb rehabilitation equipment, which provide a reference for future research to improve patients' limb function, activity level, and life independence ability.
Objective To evaluate the perioperative safety of lung surgery for patients with COVID-19. Method We retrospectively analyzed the clinical data of the patients recovered from COVID-19 infection and received lung surgery from December 2022 to February 2023 in the Department of Thoracic Surgery at Beijing Hospital. Patients who performed lung surgery and without COVID-19 at the same time were selected as a control group. Perioperative data between the two groups were compared. Results A total of 103 patients were included with 44 males and 49 females at average age of 62.2±2.1 years. All surgeries were performed by single-utility video-assisted thoracoscopic surgery (VATS). Among patients who recovered from COVID-19, 53 (51.5%) performed lobectomy, 30 (29.1%) performed segmentectomy, and 20 (19.4%) performed wedge resection. The interval between diagnosis of infection and lung surgery was less than 1 month in 32 (31.1%) patients, and more than 1 month in 71 (68.9%) patients. The results of nucleic acid test for all patients before surgery were negative. 13 (12.6%) patients had positive COVID-19 antibody of IgM, and 100 (97.1%) patients had positive IgG. A total of 20 patients experienced perioperative complications (13 patients with pulmonary air leakage, 3 with chylothorax, 2 with atrial fibrillation, and 2 patients with severe pulmonary complications). There was one perioperative death. Compared the patients who recovered from COVID-19 with those without COVID-19, there was no statistical difference in perioperative data including surgical duration, postoperative drainage, duration of thoracic tube, and duration of postoperative stay (P>0.05). There was no significant difference in perioperative complications between the two groups (P>0.05). Multivariable logistical regression analysis demonstrated that positive IgM before surgery (OR=7.319, 95%CI 1.669 to 32.103, P=0.008), and longer duration of surgery (OR=1.016, 95%CI 1.003 to 1.028, P=0.013) were independent risk factors of perioperative complications for patients who recovered from COVID-19. Conclusion It is safe for patients recover from COVID-19 to receive lung surgery when symptoms disappeared and the nucleic acid test turned negative. However, positive COVID-19 IgM was an independent risk factor for perioperative complications. We suggest that lung surgery could be performed when the nucleic acid test and COVID-19 IgM were both negative for patients recover from COVID-19 infection.