Background: Umbilical cord blood - Stem cell CD34 are attracted to study and apply to cure many serious diseases. But the quantity of the cell is small, so it only used to children. Therefore, studying to find out the high effect collected process is necessary. Objective: studying to find out the high effect process of collecting hematopoietic stem cell from umbilical cord blood. Subjects and methods: the study included 112 umbilical cord blood specimens collected from healthy mother delivering at National Hospital of Obstetric and Gynecology.Results: The condition of the mother was healthy, with no risk factors of infection or genetic disease. The average age of mothers was 28 \xb1 5 years old, average weight: 63 \xb1 5 kg. Age of fetus was from 39-41 weeks, average weight: \ufffd?3000g. Collection technique: cutting the umbilical cord after delivery 6-10 seconds, cutting the umbilical cord far from neonatal 6 cm, blood collection continued after the collection of placenta, all processes must be implemented rapidly in the 4 -5 minutes in aseptic condition. With the above process it can be obtained with high effect blood: volume was 90 - 120ml (48%). CD34 cell count: 1.6 \xb1 0.3x106, the number of eukaryotic cells: 13.53 \xb1 1.7x108/unit of the umbilical cord. Conclusions: The process can take the large volume of umbilical cord blood, which can be used for children and low weight adult. \r\n', u'\r\n', u'\r\n', u'
Fetal Blood

Background: Ankle arthroscopy has been used in Viet Duc Hospital for 4 years and now has become a routine surgery with about 200 patients, who has had ankle arthroscopy to reconstruct the anterior cruciate ligament or operate ragged meniscectomy. Objectives: Evaluate the result of ankle arthroscopy in Viet Duc Hospital and review the indication and surgical technique of ankle arthroscopy in the literature. Subject and methods: Retrospective study on 10 patients with ankle arthroscopy in Viet Duc Hospital from May 2006 to May 2007. Results: 5 patients with impingement, 4 patients with OCD lesion and 1 case of an old displaced fracture of lateral malleolar. Postoperative evaluation with Olerud Molander, ankle function improves at least 10 points and all the patients are satisfied with the results. Conclusions: Ankle arthroscopy gives good result and can be recommended for other cases.
ankle arthroscopy ; malleolar fracture

Background: Situation of extremity injury caused by traffic accidents and occupational accidents are increasing in Vietnam. Therefore, the prevention and fight against these accidents are one of the key objectives to reduce the burden on the families of victims as well as for society. Objectives: To outline situation of extremity injury patients caused by traffic accident, treated in Viet Duc hospital from 2000-2004. Subjects and method: A retrospective study was conducted on 19.845 patients (14.562 males, 5.283 females, aged from 1-97 years old). The subjects were divided into 3 main groups: alone upper extremity injury, alone lower extremity injury and multiple fractures. Results: Extremity injury was common seen in people of working age (78.1%), men more than women (2.76/1 ratio), left foot more than right foot and it was common been in multiple fracture situation due to complex mechanisms of injury (50.3%), alone extremity injury (49.7%). The lower extremity injury was more common seen than upper extremity injury. Open fracture injury (27.3%), in which open fractures in lower extremity were more common seen. Open fractures in both 2 leg bones was the most common seen, accounted for 57.4% among total of open fractures. Amputation accounted for 8.3% among all case of open fractures and 2.3% among all case of extremity injuries. Conclusion: Extremity injury (lower extremity and upper extremity) caused by traffic accidents is common seen. The average, there are 3 emergency surgeries due to open fracture injury were performed daily in Viet Duc hospital per a total of about 11 traumatic emergency surgeries.
Fractures ; Bone ; Arm Injuries ; Leg Injuries ; Accidents ; Traffic ;

Background: Rotavirus type A is the most common cause of acute gastrointestinal inflammatory in children under 5 years old, especially in age groups 6 and 36 months. Some rotavirus strains are common; seen recently in Vietnam are G1, G2, G3, G4 and G9, P4, P6 and P8. Objective: Surveillance of epidemiological characteristics of rotavirus induced diarrhea in the National Pediatric Hospital from September, 2007 to March, 2008. Subject and methods: Collection of 322 stool specimens of pediatric patients with acute diarrhea (including 213 specimens from male, 109 specimens from female), who were treated in the National Pediatric Hospital. All of these specimens were determined for causes of rotavirus with the enzyme immunoassay (EIA). Results and Conclusion: Among these 322 stool specimens, there were 195 rotavirus positive specimens, accounted for 60.56%. The rate of monthly distribution of rotavirus diarrhea from September, 2007 to March, 2008 were 76%, 56%, 62%, 61%, 64%, 56% and 44%, respectively. Number of rotavirus positive cases in male and female was 56 (26.29%) and 79 (72.48%), respectively. The rate of rotavirus positive children compared to total number of specimens with the age 0-3 months, 3-6 months, 6-12 months, 12-24 months, 24-36 months and over 36 months was 7.69%, 15.9%, 41.54%, 32.82%, 1.54% and 0.51%, respectively. The results of type identification indicated that phenotypes of 37 among 40 specimens were identified (92.5%) in which there were 5 specimens of G1P8 (12.5%), 20 specimens of G3P8 (50%), 1 specimen of G9P8 (2.5%), 2 specimens of G1Pmixed (5%), 9 specimens of G3Pmixed (22.5%), 1 specimen of G unidentified-type P8 (2.5%) and 2 specimens of G3 P unidentified-type (5%).
rotavirus ; diarrhea ; epidemiology

Background: Acute gastroenterophathy usually caused by the Rota virus for children under 5 years old. Objectives: To present various types of data on epidemiology of ROTA virus diarrhea in Ho Chi Minh city from 12/2006-11/2007. Material and method: The data were collected from 500 stool specimens of diarrhea diagnosed chilren hosptalised at Thuy Dien Pediatric hospital 1, Ho Chi Minh city from December/2006 to November /2007. Results:There were 322 rotavirus-positive specimens, representing 64.4%. The proportions of monthly distribution of cases with diarrhea due to rotavirus were 90.1%, 54.39%, 85.37%, 74.51%, 72.92%, 41.67%, 26.67%, 58.33%, 79.31%, 52.63%, 69.05% and 57.78%, respectively. The numbers of rotavirus-positive cases in male and female were 216 (65.26%) and 106 (62.72%), respectively. The proportions of Rota virus positive children compared to total number of diarrheal cases with age 0-3, 3-6, 6-12, 12-24, 24-36 and over 36 months were 2.80%, 7.76%, 40.06%, 40.68%, 5.28% and 3.42%, respectively.\r\n', u'The results of typing identification indicated that the phenotypes of 98 among 100 specimens were identified (98%) in which there were sixty-one specimens of G1P8 (61%), one specimen of G2P8 (1%), fourteen specimens of G3P8 (14%), four of specimens of G4P8 (4%), eighteen specimens of GmixedP8 (18%). There were only two specimens of GnontypeableP8 (2%). Conclusion: Further studies should be carried out to clear this issue.\r\n', u'
Rotavirus ; gel type.

Raw or undercooked fish dishes are the major sources of human infection of fishborne trematodes (FBT) and the situation of metacercarial infection in fish greatly affect the prevalence in humans, especially those fish that are commonly used for raw consumption. To investigate the situation of infection with metacercaria of FBT in fish often used to prepare raw fish dishes by local people to assess the risk of infection to humans in Ninh Binh province, Vietnam. 345 fish belonging to five species of freshwater and one species of brackish water fish were collected from fishermen or small-scale fish dealers in Kim Son and Yen Khanh districts, Ninh Binh province between May 2017 and May 2018. Metacercaria of FBT was discovered by pepsin and hydrochloric acid digestion techniques and identified by the morphological and molecular analysis. Among examined fish, 44.06% infected with FBT metacercaria and the highest prevalence was in Cyprinus carpio (86.54%), Ctenopharyngodon idellus (78.43%) and Hypophthalmichthys molitrix (66.67%) while Konosirus punctatus – the brackish water fish – were free from infection. Three species of FBT were found; namely Haplorchis pumilio (accounting for 99.84% of collected metacercariae), Haplorchis taichui and Clonorchis sinensis. The average density was 1.06 metacercariae per gram of freshwater fish and the highest number was of C. idellus (6.38 cysts/gram) followed by Cirrhinus molitorella and C. carpio. Results of the study show the high prevalence of infection of FBT metacercariae among freshwater fish often used to prepare raw fish dishes in Ninh Binh province. These findings suggest the need for greater awareness of the risk from raw fish dishes among public health authorities and people.