The study aimed to evaluate the local shaking level and noising level in coal miners of Mong Duong, Khe Cham, Thong Nhat and Mao Khe in 8/2001. The results have shown that the coal miners were affected by shaking of drilling hamper. The shaking level was 1.7 m/s2, higher allowed level. In addition to, they were affected by the noise that was higher than this of allowed level.
Hygiene ; Therapies, Investigational

The capillaroscopy is a method to early diagnose the symptoms of capillary spasm in the vibration. Beside of usual microscope M- 70 A of Soviet Union, any microscope can be used to illuminate and take the photograph of the capillary of finger transnail skin fold.
Microscopic Angioscopy ; Fingers

A study on the shaking disease among coal miners in Quang Ninh was implemented by measurement of the shaking perception. The results found that the shaking perception of miners who have been working in coal mine for 5 years and over was significantly reduced compared with this of control. The test of shaking perception by diapason C128 is easy to use everywhere and has a specific significant for finding the shaking disease.
Perception ; Research Design

A retrospective study on the 77 patients suspected the cerebral vascular lesions received the ultrasound Doppler and angiography to evaluated the stenosid of carotid of which 154 rounds of ultrasound and angiography for outer, inner and bifurcation of carotid. The results have shown that there was suitability between ultrasound and angiography in 100% cases of complete stenosid or nearly embolised stenosid. The false positive results of ultrasound occurred in 9 rounds for inner carotid stenosid, 4 rounds for outer carotid stenosid and 2 rounds for bifurcation of carotid. The false negative results occurred in the inner carotid, outer carotid and bifurcation of carotid was 5, 2 and 12 rounds.
Carotid Stenosis ; Ultrasonography ; Angiography

Authors reviewed all patients who received blood ad blood components during hospitalization and found that: The total number of patients received blood is 7073. The total blood (WB, RBC, plasma) use is 24041 units, approximate 5838L with medium number: 1944L per years, 612L per month, 3 units per 1 patient, especially in emergency operation: >30%. The blood components transfusion application is limited: RBC: 3524 units (14%), FFP: 3248 units (13%), mean while whole blood use rate is high: > 71%. Hematology and blood transfusion department in Viet Duc Hospital has been producing successfully blood components (Red Blood Cells, Fresh Frozen Plasma, Platelets concentrate, Cryoprecipitated...) for clinical use.
Blood ; surgery ; therapeutics

Descriptive study was carried out on 66 patients with pancreas head tumors diagnosed clinically, who underwent CT scanning and were treated surgically at Viet Duc Hospital. Ultrasound values were evaluated through the results of operation and pathological anatomy. CT scanning had achieved sensitivity of 96.8% and an accuracy of 90.9% in the diagnosis of the tumors. These values attained 52.3% and 66.7% in the detection of infiltrative signs in neighbouring organs and 75.0% and 90.9% in vessel infiltration. CT scanning was limited in the diagnosis of glandular metastasis and liver metastasis of tumors at pancreas head
Neoplasms ; Pancreas ; diagnosis ; Therapeutics ; surgery ; Tomography, X-Ray Computed

25,873 patients, who came to VietDuc Hospital from Jan 1st 2003 to Dec 31st 2003, were performed HIV antibody tests. Result: among 25,297 samples are tested for HIV antibody, there were 292 cases HIV positive. The numbers of HIV infection among surgical patients in VietDuc Hospital increased day by day, accounted for 1.3% of patients underwent HIV antibody tests, especially the rate of HIV infection in young males (between 20 and 29 years old) was the highest. It is necessary to test HIV for pre-operative patients, special in high-risk people and to pay attention for health equipment, labour assurance for health care workers in hospital
HIV ; surgery ; hospitals ; patients

The requirement of bloods in the treatment at the hospital enhanced from 1763 litres (year 1998) to 2783 litres (year 2002) with an average of > 231 litre each month. The use of diverse blood insolated components trended to increase but the quantity was still limited. The transfusion using blood isolated components partly was a solution of safety, of saving the cost and of high efficacy was considered by surgeon in modern transfusion technique. But autotransfusion was still not realized usually.
Blood ; Therapeutics ; Surgery ; Epidemiology

A comparative descriptive study was carried out on 80 patients diagnosed as pancrea head tumors. Ultrasound results were evaluated through operated and histopathological outcomes. Ultrasound diagnosis reached 96.1% of sensivity and 92.5% of accurracy, concerning the localization of the tumors the accuracy was 68%. Ultrasound sensitivity in the identification of the signs of infiltration in the neighbour tissues, in blood vessels, in gland was 12.5%, 11.8% and 8.8% respectively.
neoplasms ; Pancreatic Diseases ; Pancreatic Neoplasms ; ultrasonography ; diagnosis

A retrospective study on 55 subjects with surrenal gland tumors diagnosed by CT showed that the tumors are commonly benign and pheocromocytoma was detected lately with a large size (> 3 cm, accounted for 73.5%). Heterogenous structure of the tumors before and after the injection of the contrasts showed characterustic sign of pheocromocytoma. The CT procedure has had a sensitivity of 100% and a positive predictive value of 89%. In the diagnosis of ganglion metastasis, these ratios were 2/3 and 99% respectively, in the evaluation of infiltration into the liver and the right kidney, these ratios were 58.30% and 95% respectively
Tomography, X-Ray Computed ; Neoplasms ; methods