4189 persons in Phu Vang – Hue were enrolled in an inquiry on health and morbidity. Results showed that ear diseases account for 6.1%, among them media otitis trended to increase with children age; deaf and dumb 0.2%, dull 0.1%. In the right ear and left ear the incidence of media otitis was similar. Hearing capacity was less sensitive if it has media otitis of both sides. In children, extern otitis was preponderant, while in adult the main problems were buzzed ear, hearing loss, drum membrane perforation, mainly in the centre, then in ¼ infero anterior and ¼ posterioinferior, chronic media otitis 97.75%, acute 2.25%. About ¾ cases of media otitis lost hearing capacity, 28.5% had not been treated, 31.1% treated in commune health station, 25% in private physician office, 25.2% self treated at home, 18.7% in district and provincial hospital. In > 3 children family group, 81.6% and in > 5 children family group, 46.2% had media otitis
Otitis ; Otitis Media ; Diseases ; epidemiology ; diagnosis

A comparison study was carried out on 1,242 medical records of pharyngolaryngeal disease among pediatric inpatients with ages of 1 -15 in Hue Central Hospital and 2852 medical records of pharyngolaryngeal diseases among pediatric inpatients with the same ages in Aue hospital, West Germany. Results showed that the pharyngolaryngeal diseases were leading diseases among diseases of ear, nose and pharynx in both hospitals. The rate of these diseases treated by operation in Aue hospital was higher than this in Hue hospital. There was difference of the morbidity rate between age groups. The rate of treatment of infection disease and infections complication in Hue hospital was higher than this in Aue hospital. The Aue hospital considered in prophylactic operation, diagnosis and rehabitation better than Hue hospital. There was no death in Aue hospital while there were 6 deaths in Hue hospital.
Laryngeal Diseases ; Pharyngeal Diseases ; Child

Study on 168 cases of traumas in the ear, nose and throat in Hue hospital during 1997-1998 has shown that the traumas occurred in all ages of which sinonasal traumas, ear traumas. The trauma due to traffic accidents, due to the accomodation and due to the working. The traumas in the ear, nose and throat usually combined with traumas in other regions
Wounds and Injuries ; Pharynx ; ear ; nose

4 groups of subjects including 1.590 workers with occupational diseases and exposed to the risks. 175 managers, 153 health workers, 32 officals of the Labor – Invalide – Social services, social insurance in 37 factories in 7 provinces/cities: Thai Nguyen, Quang Ninh, Hanoi, Nam Dinh, Nghe An, Hue and HoChiMinh city, were enrolled into study performed from September 2001 to June 2002. The study had showed a rate of 93.8% exposed subjects underwent regular health examination of low quality. The result table delayed < 2 weeks with the cost of 35.000 VND for each subjects. In > 71.5% of fatories, occupational health examinations were conducted. The prevalence of pneumoconiosis was 94% and the cost of consultation 83.000 VND for each. There was a rather good realization of the regime of health care allowance and subsidy.
Periodicals ; Occupational Diseases ; Risk Factors

One method to determine the content of chitosan present in Pokysan cream has been developed. Chitosan was separated from Pokysan by dissolving the cream in acidic solution, extracted by chemical mixtures of I and II, which were prepared by laboratory of polymers in medico – pharmacy, and then collecting the precipitate of chitosan in the alkaline medium. This precipitate was then qualified by Lugol reagent and IR spectra. Collected chitosan precipitate was also qualified and quantified. These results proved that chitosan has been included in Pokysan cream and our method is confident
Chitosan ; Evaluation Studies ; Laboratories

From 2000-2004, the authors examined medicament were imported and delivered in Lao Cai province to investigate quality of them. Results showed that: the rate of bad quality medicament was 4.9%, among which the rate of injection drugs was higher than tablet drugs. The domestic medicament had a bad quality was higher than imported medicament (5.3% vs. 3.2%, respectively). The bad quality rates of vitamins and tonic drugs were the highest (6.7%), antibiotics 2.6%. This rate in the mountain and rural areas was higher than that in the city.
Pharmaceutical Preparations ; Epidemiology

The descriptive epidemiologic study was carried out on 505 households with growing tea > two years at Song Cau state-run farm and Minh Lap commune, Dong Hy district, Thai Nguyen province from January to December 2002. The control group consisted of carders X79, I military section, under 60 years of aged, without psychology. Results showed that: the rate of insecticide intoxication in nervous system was relatively high 25.89% - 68.21% among farmers. These symptoms included breakdown syndrome: headache, insomnia, dizziness, lose appetite…; feeling disorders such as sadness, anxiety, discouragement, pessimism, tension, irritation, angry…; memory disorders such as confusion, amnesia...
Psychology ; Diagnosis ; Tea

The subjects consisted of 15 processing households and 150 processing direct employees. Intervention of “Health promotion at workplaces for processing village households” according to the guide-line of WHO was implemented. The study was firstly carried out in Tien Ngoai food processing village, Khac Niem commune, Bac Ninh province from 2002-2003. The results showed that the intervention was successful. Tien Ngoai village developed its down rule, in which there were regulation on environmental protection, occupational safety. The village also established a fund for these activities. Each household carried out at least 3 improvements of working and living conditions. Commune health station in cooperation with preventive medicine centers organized medical examination and consultation for handicraft employees. Improving awareness of employees on occupational safety and environmental protection were done in different ways.
Health ; Food

The cross-sectional study was conducted on the ABO blood group of 833 medical students in Thai Nguyen. Using the standard blood serum which was produced by National Institute of Hematology and Blood Transfusion. The data of study was analyzed by biological statistic method. Results: The percentage of ABO blood group of Kinh, Tay, Nung, San Diu, Muong minority students was the same in order of common rule: O>B>A>AB; The blood group of H’mong minority students had the percentage of ABO blood group different from the rule, in following order B> O> A> AB.
ABO Blood-Group System ; Students

Protein trace present in chitin/chitosan product has been determined by our proposed method in which protein trace included in chitin/chitosan was extracted by refraction in 10% NaOH solution at 100oC for 5 hours. Chitin/Chitosan precipitate was discarded. protein trace in the solution was restored by neutralizing with HCl 10N to get the yellow powder. This powder was then analyzed for total nitrogen content by Kjeldahl method. The control method was conducted at the same procedure excepted from the presence of 10% NaOH. The results of different chitin/chitosan samples obtained from these two methods showed that amount of protein trace obtained from above proposed method was somewhat higher than that of the control one. Besides, the purified chitosan sample gave the lower protein trace content than that of the technical chitosan sample as well as chitin one. Protein trace bound between macromolecules of chitin/chitosan was separated in the proposed method by boiling water under alkaline condition whereas it was not completely separated in the control method because sodium hydroxide was absent.
Chitin ; Chitosan ; Proteins