一期支架置入补救治疗急性后循环大动脉闭塞机械取栓术失败病人的疗效

目的 探讨一期支架置入术作为急性后循环大动脉闭塞机械取栓失败后补救性治疗的疗效。方法 回顾性分析2016年1月至2018年6月单独支架取栓或联合抽吸取栓治疗后循环大动脉闭塞所致急性脑卒中186例，146例实现闭塞血管成功再通；40例血流恢复较差，其中28例接受一期支架置入补救性治疗（支架组）；12例拒绝支架置入治疗（非支架组），仅给予基础抗栓治疗。结果 支架组血管再通率（75.00%）明显高于非支架组（0％；P<0.05）。术后90 d，支架组预后良好率（64.29%，改良Rankin量表评分0~2分）明显高于非支架组（8.33%；P<0.05）。支架组术后90 d病死率（21.43%）明显低于非支架组（83.33%；P<0.05）。支架组症状性颅内出血发生率（7.14%）与非支架组（16.67%）无统计学差异（P>0.05）。结论 一期支架置入术作为急性后循环大动脉闭塞机械取栓术失败的补救性治疗，再通率高，并发症少，可显著改善病人的预后。     

Sex estimation of the tibia in modern Turkish: A computed tomography study

The utilization of computed tomography is beneficial for the analysis of skeletal remains and it has important advantages for anthropometric studies. The present study investigated morphometry of left tibia using CT images of a contemporary Turkish population. Seven parameters were measured on 203 individuals (124 males and 79 females) within the 19–92-years age group. The first objective of this study was to provide population-specific sex estimation equations for the contemporary Turkish population based on CT images. A second objective was to test the sex estimation formulae on Southern Europeans by Kranioti and Apostol (2015). Univariate discriminant functions resulted in classification accuracy that ranged from 66 to 86%. The best single variable was found to be upper epiphyseal breadth (86%) followed by lower epiphyseal breadth (85%). Multivariate discriminant functions resulted in classification accuracy for cross-validated data ranged from 79 to 86%. Applying the multivariate sex estimation formulae on Southern Europeans (SE) by Kranioti and Apostol in our sample resulted in very high classification accuracy ranging from 81 to 88%. In addition, 35.5–47% of the total Turkish sample is correctly classified with over 95% posterior probability, which is actually higher than the one reported for the original sample (25–43%). We conclude that the tibia is a very useful bone for sex estimation in the contemporary Turkish population. Moreover, our test results support the hypothesis that the SE formulae are sufficient for the contemporary Turkish population and they can be used safely for criminal investigations when posterior probabilities are over 95%.     

Sinus node exit,crista terminalis conduction,interatrial connection,and wavefront collision: Key features of human atrial activation in sinus rhythm

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Improved functional outcome after early reduction in Bosworth fracture-dislocation

BackgroundBosworth described an unusual fracture-dislocation of the ankle with fixed posterior fracture-dislocation of the fibula. Previous epidemiological data on the prevalence and characteristics of patients with Bosworth ankle fractures have been limited. Bosworth fracture-dislocations are often missed in patients with ankle fractures. We investigated the outcomes of missed diagnosis and the prevalence of Bosworth fracture-dislocation in patients with ankle fractures.MethodsWe conducted a retrospective analysis of inpatients aged 15 years and older with an ankle fracture, who underwent surgery between 2007 and 2016 in 4 Korean hospitals. The patient demographics, risk factors, fracture characteristics, treatment data, outcomes, and complications were analyzed.ResultsWe reviewed 3405 hospital admissions for ankle fractures. During the study period, Bosworth fracture-dislocations were diagnosed in 51 cases. The prevalence of Bosworth fracture-dislocations (n = 51) was 1.62% among patients with ankle fractures who were enrolled in this study (n = 3140). Emergency surgery was performed within 24 h of injury in 36 cases (group A) and delayed surgery was performed in 15 cases (group B). The mean patient age at admission was 35.97 (standard deviation [SD], 1.643) years in group A and 34.33 (SD, 2.296) years in group B. Men were more commonly affected than women, with a 32:19 ratio. Most of the patients with Bosworth fracture-dislocations were young adults with high-energy trauma. The most frequent mechanism of trauma was falling down stairs (n = 27, 52.94%), followed by traffic accidents. Patient outcomes were significantly better in group A than in group B.ConclusionThe prevalence of Bosworth fracture-dislocations was higher than expected. If unrecognized, it can result in inappropriate treatment and permanent disability. With accurate diagnosis and prompt treatment, excellent results can usually be obtained.Level of clinical significance4.