A cross-sectional survey of drug users who were selected by "snowballing" method between March 15 and May 30, 1999 in Haiphong City was conducted. Subjects (n=520: 514 males and 6 females) were interviewed and provided blood spescimens for HIV-1 antibody testing. Mean age of the subjects was 25 years, sixty-one percent (319/520) reported injecting drug. The 218 subjects (68%) were ever shared needles. The HIV-1 prevalence in Injecting Drug Users (IDUs) was 74%. Factors related to the presence of HIV antibody were sharing needles (OR: 4.12; 95%CI: 1.82-9.31), and injecting more than 31 times per month (OR: 2.37; 95%CI: 1.04-5.42). Extramarital sex within the last six months was reported by 44% of single and 24% of married IDUs. The high HIV-1 prevalence in IDUs suggests that preventive interventions for risk reductions of HIV-1 transmission are urgently needed in these populations.
HIV-1 ; HIV Infections

Study 600 men who have sex with men (MSM) over 15 years old in Ho Chi Minh City. Results: MSM group had complex sexual relations by oral sex and anal sex, with female partners and sex workers, and often used drugs. It’s necessary to have some intervention approaches in order to decrease HIV infection in this group.
Risk Factors ; HIV ; Male

At Cho Ray Hospital – Ho Chi Minh city from Dec 2001 to Dec 2002, 228 heart failure cases (96 males, 130 females, aged 58.4317.45) were studied. Their associated conditions were: 14 with diabetes, 5 brain blood infactus, 5 hyperthyroidies, 19 kidney failures. Among 162 patients with electrolyte disorders, 25 were died, the rate of hyponatremia and hyperkalemia was significantly higher in fatal group than in survival group. Hyponatremia was fatal risk factor and it should pay great attention to treat this condition with hypertonic natrium solution
Heart Failure, Congestive ; Cardiovascular Diseases ; Patients ; Electrolytes

Using white Swiss mouse at 3-4 weeks of age for injection of Japanese Encephalitis (JE) virus. Every 8 lots of the mouse had been infected with Nakayama and Beijing-1 strains by injection of 0.03ml into their brains, then followed up within 3 days. The paralysed mice were collected at the 69th hour of the beginning and at the 120th hour of the end. The interval between collection time was every 3 hours. In this study, the rate of mice with paralysis due to Beijing-1 strain was higher than those due to Nakayama strain (94.99% and 92.97%, respectively). The authors suggested that use of Beijing-1 strain to produce JE vaccine is more effective than Nakayama strain.
Japanese Encephalitis Vaccines ; Mice

CT scanner with marking 99m Tc-DTPA, with semi-solid meal can study completely the movement of food in the gastric region in the physiological condition and determine the gastric emptying times. The ability of rapid movement of the food from omega loop (t50% = 25.42 minutes) and the time of retention of the food in the false stomach in patients with total gastrectomy were the same as this in persons with the normal stomach (t50%=49.23 minutes). This accounted for the better living condition and less disorder in patients with gastric replacement by false stomach as type of Lygidakis total gastrectomy.
Gastrectomy ; Gastric emptying

Studying was performed on the 149 patients with gastric epithelia glandular cancer received a radical total gastrectomy in the Army Central Hospital No 108 during 1/1/1994 - 1/1/2000. The results has shown that the survival rate within 1,2,3,4,5 years from operations for group connected with omega were 76,36%; 60%; 40%; 27,27%; 25,45%, 53,7% and 46%, respectively. There is a significant different between the survival rates of patients with the tumors T3 and T4. There is no different of the survival rate between levels of the glandular metastasis N2 and N3 and between the third phase and the fourth phase.
Stomach Neoplasms ; Gastrectomy

149 patients with gastric epithelioglandular cancer were operated for the total gastrectomy in the Army Central Hospital No 108 from 1/1994 to 1/200 (male: 86; female: 63), average ages: 50, divided 2 groups according to the 2 methods of the different digestive circulation recovering. The results have shown that the rate of the tumors in the determined positions as vertical axis and perimeter of stomach the average size of the tumor, the average duration of operation and the rate of accidents were not different between two groups. The average rate of accident during operation was 6,7%, the rate of surgical complication was 18,1%.There was no death.
Accidents ; Complications ; Gastrectomy ; Stomach Neoplasms ; surgery ; therapeutics

119 patient with the peptic cancer received the total gastrectomy, participated to a study after 6-12 months of operation, were recovered the digestive functions as 2 different methods. The results of esophageal endoscopy and biosy only allowed to determine the levels of lesion but not allow affirm that these lesions due to reflu. However, there were the close relation between the general picture according to the description of boyce and microscopic picture according to the description of Beigi I with the clinical symptoms of the reflux esophagitis. Therefore, they also can be used as a standard of diagnosis. The method of the digestive functional recovering by making the distribution bag DD type Lygidakis showed the obvious efficacy in the limitation of the esophageal mucosal lesion due to the postoperative reflux
Gastrectomy ; Digestive System ; Esophageal Diseases

10 batches of Japanese encephalitis vaccine (JEV) produced at (NIHE) during 1998 were investigated for antigen content. The results showed that: JE antigen content of these 10 batches was equal or slightly higher than that of the reference vaccine
Japanese Encephalitis Vaccines ; Antigens ; vaccines

A total of 190 patients were treated from 1/1995 to 5/2000. We use the classification of ATT bases on the on the clinical signs and imaging diagnosis. Basing on the conservative and operative treatment, we assessed the possibility of conservative treatment on normal and pathological kidneys. Results: 190 patients consist of 104 moderate cases, 86 severe cases. 83 cases are of right kidneys and 107 are of left kidney. 30 cases are of pathological Kidneys. 92 cases were operated Nephrectomy was 67%, the conservative treatment was 33%.
Kidney Diseases ; Wounds and Injuries