Evaluation of the prevalence of secondary hyperparathyroidism (HPT) and the effectiveness as well as side effects of calcitriol therapy in 40 chronic renal failure patients with last stage receiving hemodialysis in Thong Nhat hospital from March, 2003 to Janruary, 2004. Results: Hypocalcemia, hyperphosphatemia and HPT are very common in elderly patients, occurring in 100%, 82,5% and 72,5%, respectively. Analysis of patient's diet showed that 100% patients is on low protein, calcium, daily energy. 97,5% is normal or low phosphorous intake. Concentration of serum parathyroid hormone, calcium, phosphate in chronic hemodialysis patients pre and post-treatment decreased clearly, but side effects increased serum phosphate level
Hyperparathyroidism ; Renal Dialysis ; Calcitriol ; Kidney Failure, Chronic

The study was conducted on two groups of air traffic controllers having different working hours (24 hours for 1st group and 6 hours for 2nd group) to evaluate the impact of working hours on controller health. Blood pressure, heart rate, simple reaction time, critical fusion frequency were taken before and after work. Sick building syndrome (SBS) questionnaires were used as well. Results showed that almost physiological parameters taken after work in group 1 were varied significantly versus that before work, while those were not varied in 2nd group. The incidence of SBS was higher dramatically in the group 1st versus group 2nd
Preventive Medicine ; Public Health ; manpower

Studying the relationship between obesity, blood pressure and dyslipidemia on 138 people (from 20 to 60 years old) who had health examination in Ha Tay hospital showed that the dyslipidemia rate was highest in age group of 41 to 50 years old (55.1%). Hyperlipidemia prevalence in the group subjects was 47.1%. Mean value of systolic and diastolic blood pressure in over weight people and people with degree I and degree II obese were the same. The percentage of overweight was 7.97 % in men and 16.67% in women. Degree I obesity was 2.17% in men and 6.52% in women. Rate of increasing total cholesterol combine with increasing triglycerides in overweight group was higher than that in control group (31.1% vs 12.9%). In term of risk factors effect on hyperlipidemia: BMI≥23 was 10.14% in men and 23.19% in women. Waist to buttock circumference ratio ≥0,95 in men was 6.52%. Waist to buttock circumference ratio ≥0.85 was 30.43%
Body Mass Index ; Hyperlipidemias ; Diagnosis

Studying relationship between obesity, blood pressure and dyslipidemia on 138 people (from 20 to 60 ages) presented at Ha Tay hospital showed that: Percentage of hyperlipidemia in these subjects was 47.1%. Average value of systolic and diastolic blood pressure in overweight people and in people with degree I and degree II obese were the same. Rate of overweight was 7.79% in men and 16.67% in women. Obesity in degree I was 2.17% in men and 6.52% in women. Rate of increasing total cholesterol combine with hypertriglycerides in over weight group was higher than that in control group (31.1% vs 12.9%). Risk factors affected on hyperlipidemia included: BMI≥23 had been seen in 10.14% of men and 23.19% of women. The waist to buttock circumference ratio ≥0.95 presented in 6.52% of men. The waist to buttock circumference ratio ≥0.85 had been seen in 30.43%
Lipids ; Body Mass Index ; Blood Pressure ; Health ; Diagnosis

Filariasis mosquitoes and susceptibility of Cx. quinquefasciatus and Cx. vishnui to insecticides were investigated in September 2004 and May 2005 in Khanh Trung commune, Khanh Vinh district, Khanh Hoa province. Twenty two mosquito species belonging to 5 genus have been found, of which the primary vector of W.bancrofti filariasis was captured with a high density, while vectors of B.malayi was found in a lower density. A total of 805 mosquitoes of 6 species (An.barbumbrosus, An. vagus, Cx.fuscocephala, Cx.quinquefasciatus, Cx.tritaeniorhynchus and Cx. vishnui) were dissected. None of them were positive with microfilaria. Cx.quinquefasciatus was found highly resistant to lambdacyhalothrin, alphacypermethrin and malathion with the mortalities of 11 %, 21%, and 60%, respectively. Similarly, the mortalities of Cx.vishnui were 19.76%, 23.83% and 13%-17%, respectively.
Filariasis ; Culicidae ; Malaria

NSAIDs user has a risk of gastrointestinal toxicity. Endoscopy is often used in studies of NSAIDs to determine the extent to which the studied drug causes gastrointestinal damage. Most patients taking NSAIDs will develop acute superficial damage to the gastric mucosa, including haemorrhages and erosions. However, in many cases there are no symptoms. The main role of endoscopy is to diagnose gastroduodenal damage in patients who have signs and symptoms e.g. dyspepsia, upper abdominal pain... NSAIDs with improved gastrointestinal tolerability, such as meloxicam, may now reduce the incidents of adverse gastrointestinal events.
Anti-Inflammatory Agents, Non-Steroidal ; Enteritis

A survey was conducted on 3 subjects groups (wearing 100% plain silk, 100% satin silk, and 100% polyester shirt). All participants walked ten minutes on treadmill in hot (32-34oC) and humidity (72-75%) environment. The aim of the survey was to compare the fabric advantages for users working in hot and humid ambient environment. Obtained results showed there were no significant differences neither in skin temperature nor heart rate of subjects wearing shirt made of pure silk or pure polyester fibbers. However the subjective irritating sensations were dominant in subjects wearing 100% polyester shirt, while less ratio of that was observed for subjects wearing 100% silk shirt. The average amount of sweat remained in the 100% polyester shirt was higher than that in the silk one.
Clothing ; Environment

Results of the study on 84 operators showed that automatic working conditions affected on operator's health considerably: 31% of workers suffering from emotional disorder were founded out by questionnaires and psychological tests. Among them, there were 5 cases of anxiety-depression, 17 cases of simple depression and 4 cases of simple anxiety. These results corresponded to the analysis of operator's socio-economic and their working conditions. Some recommendations were suggested to eliminate the negative effects of automatic work.
Stress ; Mental Health ; Operator Regions

Circus is a specific work demanding high physical effort and emotional strain. Using monitoring ECG, the survey was conducted on 12 young male and female circus actors, aged 14-21 years during their training performance. The aim of the survey was to evaluate circus workload on cardio-vascular system. The obtained results showed that circus could be considered as extreme heavy work according to the Christensen's classification. Their average heart rate (RH) during the performance was 163 beats/min (heart rate at rest was 76.6 beats/mn). The momentary maximal HR was 255 beats/min for swinging performance on altitude and 198 beats/min for jumping and marking loops in the net. Their minute HR variations were 35-130 beats/min and 10-58 beats/min accordingly. The benefit of the monitoring ECG in studying some specific occupations was confirmed.
Accidents, Occupational ; Electrocardiography

Study on the working environment and condition of 350 workers in Cai Lan vegetable oil factory in the last 2 years showed that: the most of levels of the noise, gas at the surveyed places were at allowed threshold, but the temperature at the working places, the speed of wind, the humidity were higher than allowed threshold. The rate of common diseases in these workers was lower than these in other industrial facilities in the same area.
Primary Health Care ; Environment