Anemia and survival in Thai hemodialysis patients: evidence from national registry data.

BACKGROUND: Anemia is a major contributor to morbidity and mortality in chronic dialysis patients. The K/DOQI guideline recommends the target hemoglobin of 11-12 g/dl (hematocrit of 33-36%). However the appropriate hematocrit level for Thai hemodialysis patients has been controversial. OBJECTIVE: To investigate the influence of anemia on mortality in Thai chronic hemodialysis patients who initiated their dialysis from 1999 through 2003. MATERIAL AND METHOD: The data from the Thailand Renal Replacement Therapy Registry who has conducted an annual report of chronic dialysis patients throughout Thailand since 1997 was used. Data of twice- and thrice-weekly hemodialysis patients who had recorded hematocrit from 1999 through 2003 were processed and confirmed before final analysis. Records of 3,211 hemodialysis patients from 301 centers were included. RESULT: The original kidney diseases were diabetes mellitus (31.5%) and hypertension (20.9%). Most patients received twice-weekly hemodialysis (86.3%). The mean hematocrit was 29.3 +/- 5.5%. Most patients (72.8%) had hematocrits of less than 33%. Kaplan-Meier analysis showed patients with hematocrit of ?33% or more had better survival than patients with hematocrits of less than 33% (p <0.01). Patients with hematocrits of less than 27, 27-29.9, 30-32.9 and 36% or more had mortality risks of 1.90 (95% CI: 1.31-2.76, p <0.01), 2.10 (95% CI: 1.42-3.09, p <0.01), 1.74 (95% CI: 1.18-2.56, p <0.01) and 1.174 (95% CI: 0.73-1.90, p = 0.51) respectively, compared to those with hematocrit of 33-35.9%. CONCLUSION: The best survival can be achieved in Thai patients with hematocrits of at least 33%.

Nasopharyngeal tuberculosis: a case report presenting with diplopia.

Tuberculosis (TB) is a common infectious disease worldwide. It can affect many organs, the most common is lungs infection. Upper respiratory tract involvement is uncommon and the least common regional involvement is nasopharyngeal region. The authors report a case of nasopharyngeal tuberculosis who came with diplopia which is a very rare presentation. Nasopharyngeal tuberculosis is a rare condition that is found in only reported cases in the literature. In Thailand, the present case is the second case of this condition with diplopia. Nasopharyngeal examination reveal mass or ulceration. The diagnostic tool is lesional biopsy. Histology is necessary to diagnose tuberculosis and to exclude other conditions especially nasopharyngeal cancer Nasopharyngeal tuberculosis has a good prognosis after treatment.