Purpose: The goal of study was to investigate and compare clinical characteristics, surgical characteristics and CT scan characteristics of chronic subdural hematoma in patients undiagnosed clinically. Material and method: a cross-sectional study was conducted in a sample of 64 patients having non apparent clinical symptoms, with chronic subdural hematoma images, being treated surgically from 5/2010 to 7/2011in Hue central hospital. Result: Mean age is 60.45. Proportion male to female is 11.8/1. Traumatic history accounts for 65.6%. Hematoma in frontal- temporal- parietal regions accounts for 50%. Minimum midline displacement is 1mm; maximum midline displacement is 26mm. Minimum hematoma width is 1 mm; maximum hematoma width is 34 mm. Hypodensity of hematoma accounts for 67.2%. Conclusion: Headache and traumatic history are two major clinical characteristics of chronic sudural hematoma. Characteristics of chronic sudural hematoma is hypodensity, homogeneous. There is a relationship between CT scan characteristics, clinical characteristics and surgical characteristics in CSH.

Objectives: Evaluation of the treatment effects of the skintact-electrode combined with "Dai tan giao thang" remedy and compared with skintact- electrode. Methods: 38 patients, diagnosed peripherally facial paralysis caused by cold, were examined and treated at Thua Thien Hue traditional medicine hospital, were divided into 2 groups: the study group: skintact-electrode combined with remedy, the control group: skintact-electrode only.This study was a randomizedly controlled clinical trial, comparison and control. Results: Occur at any age and gender, mostly in labor age making up 52.63%. After treatment, the botanical disorder and movement disorder symptoms at study groups reduced much more than that at control groups. The results of the good and reduced treatment of the study group are higher than that of the control group and the difference between 2 groups has statistical significance. The sooner patients were treated, the higher rate of recovering illness was, the recovering rate of study group and control group is 53.57% (less than 7 days); 42.86% (less than 7 days), respectively. Average treatment time: study group: 21.5 ± 6.1; control group: 25.6 ± 9.34 days. Conclusions: The treatment of peripherally facial paralysis caused by cold with the skintact-electrode combined with "Dai tan giao thang" remedy showed that the completely recovering rate of study group is 89.47% and the average treatment time is 21.5 ± 6.1 days. The good and fairly results of the study groups is higher than the control groups (p<0.05).