“临床早期接触”对医学生关怀能力养成的效果分析——以汕头大学医学院“医者之心（HEART）”课程为例

目的探讨医者之心（HEART）课程中“临床早期接触社会实践环节”对关怀能力养成的效果，对该课程纳入“临床早期接触”的教学设计做小结。方法编纂临床早期接触中的“隐性课程”体验问卷，对参加医者之心（HEART）课程的临床早期接触社会实践环节的学生进行事后访问及问卷调查，以此评估“隐形课程”对医学生关怀能力养成的初步情况。 结果医学实习生对各种具有隐性课程内涵举措的各个维度对其关怀能力培育的帮助，均呈偏正向的态度。“带教教师教学示范”“关怀展现”“专业胜任能力对学生关怀能力影响”这3个构面的强弱程度，会因“学生临床早期接触时长”“带教教师年资”“临床早期接触过程满意程度”的不同而呈现显著差异。结论“临床早期接触各类组织形式”对第一次进入临床体验的医学生关怀能力认知有重要影响，典范学习及同伴影响对医学生关怀能力认知有正向影响。     

The predictive significance of bone mineral density on postoperative pain relief in knee osteoarthritis patients after total knee arthroplasty: A prediction model

BackgroundBone mineral density (BMD) may be an important factor affecting the clinical outcomes after total knee arthroplasty (TKA). However, further information regarding BMD in postoperative pain relief is not present yet. This study aims to gain further insight into the predictive significance of BMD in postoperative pain relief in knee osteoarthritis (KOA) patients after TKA.Methods156 KOA patients treated by TKA were included in this study. Visual analogue scale (VAS) was used to measure the pain intensity in patients within one year after TKA. The patients were divided into good pain relief group (the improvement of VAS ≥ 3) and poor pain relief group (the improvement of VAS < 3). BMD and other clinical characteristics were also collected. Logistic regression analysis and receiver operating characteristic curve (ROC curve) were used to evaluate the predictive significance of BMD. Subgroup analysis was used to compare the difference of postoperative pain between High BMD group and Low BMD group extra.Results34 (21.8%) patients had poor pain relief after TKA. Logistic regression analysis indicated that age, BMD, preoperative hospital for special surgery (HSS) scores, preoperative VAS score and postoperative posterior slope angles (PSA) were the risk factors of poor pain relief (P < 0.05). Using BMD as a predictor, the optimum cut-off value of poor pain relief was T-level = ?3.0 SD in the ROC curve, where sensitivity and specificity were 73.5% and 83.7%, respectively. Based on this cut-off value, obvious pain relief was observed in the High BMD group compared with Low BMD group from the 6th month after TKA in the subgroup analysis (P < 0.05).ConclusionsBMD is an effective predictor for postoperative pain relief in KOA patients after TKA, and the poor pain relief should be fully considered especially when BMD T-level ≤ ?3.0 SD.     

Laparoscopy-assisted total gastrectomy with trans-orally inserted anvil(OrVilTM):A single institution experience

AIM:To investigate the feasibility of laparoscopyassisted total gastrectomy(LATG)using trans-orally inserted anvil(OrVilTM)in terms of operative characteristics and short term outcomes. RESULTS:Characteristics of 27 patients with gastric cancer who underwent LATG from October 2009 to October 2012 in the Foshan Affiliated Hospital of South Medical University were retrospectively reviewed. Among these patients,six were reconstructed by minilaparotomy and 21 by OrVilTM.The clinicopathological characteristics,total operation time,total blood loss, abdominal incision and complications of anastomosis including stenosis and leakage,were compared between the groups undergoing LATG with OrVilTM and the group undergoing minilaparotomy. RESULTS:The operations were successfully performed on all the patients without intraoperative complications or conversion to open surgery.Two(10%)patients received palliative procedure under laparoscope who were prepared for LATG preoperatively.One case had hepatic metastatic carcinoma and 1 case had tumor recurrence near the anastomosis 8 mo after surgery.The mean follow-up duration was 10 mo(range,2-24 mo). Operation time was significantly reduced by the use of OrVilTM(198.42±30.28 min vs 240.83±8.23 min). The postoperative course with regard to occurrence of stenosis and leakage was not different between the two groups.There were no significant differences in estimated blood loss.The upper abdominal incision was smaller in OrVilTM group than in minilaparotomy group (4.31±0.45 cm vs 6.43±0.38 cm). CONCLUSION:LATG using OrVil TM is a technically feasible surgical procedure with sufficient lymph node dissection,less operation time and acceptable morbidity.