ABSTRACT
Short bowel syndrome in adult means the condition that length of short bowel is less than 200 cm. Functional definition of this syndrome refers to decreased absorption capacity of intestine. This problem will cause some clinical manifestations such as diarrhea, dehydration and malabsorption. Our studied case was a 31 years old man who had pain in his left flunk since three weeks ago. After the peritonitis and gangrene diagnosis, he was operated and just 10-15cm from proximal of jejunum and 30cm from distal of ileum remained. His colon had not any problem. The patient one year after operation came back to the normal life without any need to the Total Parenteral Nutrition [TPN]. In patients with acute mesenteric ischemia due to gangrene of intestine, resection and anastomosis is not usually recommended because it decreases the patient's survival. We concluded that if colon has not any problem and 10 to 15cm from proximal of jejunum and 20 to 30cm from distal of ileum were remained, it's better to do the complete resection and anastomosis. In this paper we showed that these patients could really survive
ABSTRACT
Background: collegians especially medical students are a high-risk group for mental disorders. This project has done to evaluation of General health of medical students of AJA University of medical sciences - 2009
Materials and Methods: in this analytical cross sectional study 52 medical students were included. They were asked to fill in GHQ-28 questionnaire. Cut of point was 23 and One sample T, One sample K-S, Two Sample T and Levene tests were applied to the variables using SPSS v.17
Results: the mean [+/-SD] of score of general health in medical students was 47.48 [+/-12.16]. According to the P-Value of One sample K-S test [p=0.77] scores of general health at the ?=0.05 have a normal distribution. Thus this mean is over than 23 and it means there are some disorders in the general health of medical students. P-Value of Levene test is 0.04 and it means there are no significant differences between the Variance of scores of general health in first year students and the second year. P-value of two sample T test is 0.57 and it means there are no significant differences between level of general health in these two groups. These results were also appeared for sub scales of GHQ-28 [p>0.05]
Conclusions: according to the results of our research and some other researches about depression and stress in medical students, it seems that many of medical students all over the world suffer from general health and mental disorders. Prevention of these disorders is possible with guiding councils
ABSTRACT
Desired mechanical properties of nickel-titanium wires have resulted in some orthodontists to recycle these wires and apply them repeatedly. The aim of this study was to evaluate load-deflection changes of nickel-titanium wires after single clinical application in three different types of crowding. 80 nickel-titanium wires [Global trade mark] with 0.014 inch diameter were randomly divided into four groups as: control, mild, moderate and severe crowding. Wires were used in patients for a period of 6 +/- 1 weeks Then, load-deflection experiment, using Zwick machine was done. Data were analyzed by Hottelling, Fisher's exact and Duncan tests. Hottelling analysis showed a significant difference between the groups. Fisher's exact test showed that there was a significant difference between forces at 0.5, 1.0, 1.5, 2, 2.5 mm deflection loading and unloading but there was no significant difference in 3 mm loading deflection. This study showed that although single application of nickel-titanium wire [at least for the wire used in this study] for one orthodontic visit causes significant decrease in force levels in different types of crowding, residual force after single clinical application is still enough for repeated clinical application