Chinese Med J Peking
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Chinese Med J Peking · Jul 2007
Tissue Doppler imaging study of right ventricular myocardial systolic activation in subjects with pulmonary arterial hypertension.
Tissue Doppler imaging (TDI) has provided an objective means to quantify global and regional left ventricular (LV) and right ventricular (RV) function with improved accuracy and greater reproducibility than conventional echocardiography. This study was conducted to assess RV myocardial systolic activation by TDI in subjects with pulmonary arterial hypertension (PAH). ⋯ In PAH, RV myocardial systolic activation was markedly delayed, which was directly related to the RV fractional area change. RV myocardial systolic activation delay assessed by TDI could offer a unique approach to predict RV dysfunction.
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Chinese Med J Peking · Jul 2007
Cement vertebroplasty combined with ethanol injection in the treatment of vertebral hemangioma.
A number of methods have been used in the treatment of symptomatic and aggressive vertebral hemangioma, but none of them is optimal. Vertebral hemangioma treated with cement vertebroplasty or ethanol injection alone showed relatively good results despite their limitations. ⋯ Cement vertebroplasty combined with ethanol injection as a safe and effective technique is an alternative to the treatment of patients with vertebral hemangioma.
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Chinese Med J Peking · Jul 2007
Epidemiology of hepatitis B virus infection among young adults in Taiwan, China after public vaccination program.
The public vaccination program of hepatitis B virus (HBV) was launched during 1984 in Taiwan, China. However, the long-lasting protective efficacy of HBV vaccination among adolescents older than 15 years of age was seldom recorded. ⋯ Public vaccination provides long-lasting protection again HBV infection among the university students in Taiwan, China older than 18 years of age. There is a geographic variation of HBV infection among young adults in Taiwan, China.
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Chinese Med J Peking · Jul 2007
Selection and application of serotypical synthetic peptides derived from hepatitis C virus NS5A region.
Numerous studies have reported a relationship between hepatitis C virus (HCV) genotype and the response to interferon therapy. Despite high sensitivity and specificity, genotyping methods can be performed only on HCV RNA positive samples. Serotyping might be a rapid and cost effective method for determining HCV genotypes, especially in patients with previously undetectable HCV RNA. In this study, an enzyme linked immunosorbent assay (ELISA) method for HCV serotyping with the genotype specific, synthetic peptides derived from HCV nonstructural 5a (NS5A) region was developed. ⋯ The major antigenic regions in HCV NS5A region were at 2212 - 2241 (R3), 2272 - 2301 (R7) and 2302 - 2331 (R9). Eighteen peptides from highly conserved region show genotype independent, immunoreactivity, useful for antiHCV antibody test. Twelve peptides from highly variable region show genotype 1 and 3 dependent immunoreactivity, useful for determining HCV serotype, especially for patients with previously undetectable HCV RNA.
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Chinese Med J Peking · Jul 2007
Relationship between different skin incisions and the injury of the infrapatellar branch of the saphenous nerve during anterior cruciate ligament reconstruction.
After anterior cruciate ligament (ACL) reconstruction, some patients suffered from sensory disturbance around the surgical incision of the leg. This research was aimed to investigate the relationship between the different skin incisions and the injury of the infrapatellar branch of the saphenous nerve (IPBSN) post ACL reconstruction. ⋯ Oblique incision with less risk of damage for IPBSN may be better for graft harvesting in ACL reconstruction. As the IPBSN is so near and parallel to the hamstring tendons, damage to the IPBSN is one of the potential complications for graft harvesting, regardless of the incision used. That's why even in the oblique incision group, 24% patients also had sensory disturbance complication.