A retrospeclive study was performed in 455 (282 males and 173 females) cases of gastric cancer presenting between 1990 and 1999. The average age of the patient was 52.17; a range of 16 to 80 years. 143 of these patients underwent subtotal gastrectomy. The postoperative morbidity and mortality common rates were 25/455 (5.4%) and 4/455 (0.8%). The morbidity and mortality rates were 11/143 (7.69%) and 1/143 (0.69%) for total gastrectomy cases. The morbidity and mortality rates were 14/312 (4.48%) and 3/312 (0.96%) for subtotal gastrectomy cases. The rate of anastigmatic leakage, stump of duodenum leakage, pancreatitis acute was 5/455 (1.09%), 2/455 (0.43%) and 2/455 (0.43%). They are main mortality causes.
Accidents ; Complications ; Therapeutics ; Stomach Neoplasms ; surgery

30 patients with abdominal operation without pathology of gallbladder stone participated to the study. The size of bile duck out liver is measured during operation. This size was compared with this measured by ultrasound. Results: The wide of gallbladder: 2.48+/-0.2cm; the depth of wall of gallbladder: 2.38+/-0.28mm; diameter of OMC: 5.38+/-0.39cm. The ultrasound can not measure the bile duck in liver. The diameter of portal vein: 1.05+/-0.06cm
ultrasonography ; Bladder Calculi

Study conducted on 57 cases of complete hydatiform mole, with the average fetal age of 13.5641.04 weeks (lowest 6 weeks, highest 20.5 weeks) beta-hCG average level 1158656.16246627.71 IU/l (min 79072 IU/l, max 5474400 IU/l), volume of removed tissue – min 100 ml, max 2500 ml). Results showed that the correlation between preevacuation beta-hCG level and removed tissue volume is higher than the correlation between gestational age and the number of evacuated mole. Between preevacuated beta-hCG level and gestational age the correlation is not valuable
Abortion, Legal ; Gestational Age ; Pregnant Women

Background: Human albumin was produced and used in many countries. Cohn's technique had been used to precipitate albumin from human plasma. This technique was easy and cheap and the quality of the product was good. In Vietnam, human albumin had to import, but the prices was very expensive. Vietnam was having good plasma in large quantity and high quality. That\u2019s why research on production plasma albumin was essential.\r\n", u"Objectives: This study aimed at using Cohn's technique improved by Drohan and Van - Aken to produce standard albumin from human plasma. Subjects and method: Human plasma detected VIII-factor was used for present study. Plasma \ufffd?albumin was precipitated by ethanol at low temperature and pH. The collected albumins have been liophilizated and storage at 40C. The quality and quantity of Albumin was evaluated by quantitative analysis and protein \ufffd?electrophoresis. Results: The 418g of albumin powder was produced from 16 liters of plasma detected F \ufffd?VIII. The quality of this albumin come up to standard (>95%) and quantity of albumin collected from one liter of this plasma was 26g. Conclusion: In the Vietnamese condition, the technique of Cohn can be used to produce standard albumin for treatment.\r\n", u'
Albumins/ standards ; Plasma ;

Introduction: The need for gama \u2013 globulin, especially gama - globulin - anti \u2013 HBs, is huge in Vietnam. A number of patients cannot to afford use them due to the high price as they are imported. Meanwhile, Vietnam has high quality input sources for producing gama \u2013 globulin. \r\n', u'Objectives: To study the production process of gama - Globulin from Human Plasma and Standard gama - Globulin with Rich of Anti \u2013 HBs. \r\n', u'Subjects and method: 168 samples of human plasma from voluntary blood donors, which had been screened with for transfusion transmittable infections (TTLs), were chosen as plasma with rich of anti - HBs. The plasma with anti - HBsAg was precipitated with ethanol 25%, pH 6,9 to gain gama - globulin with rich anti - HBs, which was dried by Dutch Ly - 3 - TTE machine. Activation of anti - HBs gama - globulin was identified by a standard method of the degree of antibody specific for anti - HBsAg kit of BIORAD, \r\n', u'Results: The purity of the gama - globulin achieved was 93%, which was almost equal with the results of some foreign researchers (7.8), the activation of anti - HBs was 1:128 dilution degree. The productivity of gama - globulin gaining from 1 litter plasma was 6.0 gram. This new issue was first demonstrated in Vietnam. \r\n', u'Conclusion: We can domestically produce anti-Bs gama - globulin with high degree of activeness (1:128) from human plasma by the precipitating method with ethanol, pH and low temperature. \r\n', u'
Human plasma ; gama - globulin - anti - HBs ; Precipitation of ethanol ; pH and low temperature

Objective: The risk of transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from schoolchildren to their household and the protective effects of vaccination in these settings remain poorly understood. We assessed the transmission dynamics of schoolchildren with SARS-CoV-2 within their households and the protective effects of coronavirus disease (COVID-19) vaccination among household members in Viet Nam. Methods: We estimated the attack rate, vaccine effectiveness and adjusted risk ratio (aRR) of factors associated with SARS-CoV-2 transmission to household contacts of children confirmed to have COVID-19 who attended three schools in Ha Nam, Phu Tho and Thanh Hoa provinces between September and December 2021 using multivariable regression with household-level random effects. Results: This retrospective cohort study included 157 children infected with SARS-CoV-2 and their 540 household contacts. The attack rate among household contacts was 24.6% (133/540). Overall, vaccine effectiveness among household contacts was 39% (95% confidence interval [CI]: -1 to -63), higher among males than females and higher in adults aged >40 years. COVID-19 transmission was greater among female household contacts compared with males (aRR: 1.35, 95% CI: 0.94 to 1.95), although not statistically significant, and highest among those aged 19–39 years (aRR: 2.51, 95% CI: 1.50 to 4.21). Fully vaccinated household contacts had significantly lower infection risk (aRR: 0.46, 95% CI: 0.26 to 0.84). Discussion: We found substantial onward transmission of SARS-CoV-2 from schoolchildren to household members, and older people were more likely to be protected by vaccination. We recommend that schoolchildren and all household members living with schoolchildren receive at least two doses of a COVID-19 vaccine. Recognizing the role of schoolchildren in the onward transmission of COVID-19 is an important lesson learned by Viet Nam that can help not only in managing other outbreaks but also in protecting schoolchildren by predicting the progress of the outbreak and preparing for a timely response.