Efficacy and safety of oral doxercalciferol in the management of secondary hyperparathyroidism in chronic kidney disease stage 4.

This study was carried out to evaluate the efficacy and safety of doxercalciferol as therapy for secondary hyperparathyroidism (SHPT) in patients with chronic kidney disease (CKD) stage 4 in a prospective clinical trial. A total of 35 CKD-4 patients who had a baseline parathyroid hormone (iPTH) >150 pg/mL and had not received any vitamin D analog in the preceding 8 weeks were followed up at intervals of 6 weeks for 18 weeks on oral therapy with doxercalciferol. The starting dose was 1.5 µg/day, and the dose was increased in steps of 1 µg/day if iPTH did not decrease by at least 30% on the subsequent visit. Doxercalciferol was stopped temporarily if low iPTH (<70 pg/mL), hypercalcemia (>10.7 mg/dL), or severe hyperphosphatemia (>8.0 mg/dL) occurred, and was restarted at a lower dose on reversal of these abnormalities. Calcium acetate was the only phosphate binder used. Mean iPTH decreased by 35.4 ± 4.4% from 381.7 ± 31.3 pg/mL to 237.9 ± 25.7 pg/mL (P < 0.001). The proportion of patients who achieved 30% and 50% suppression of iPTH levels was 83% and 72%, respectively. Mean serum calcium, phosphorus, and calcium-phosphorus product values did not differ significantly from the baseline values. Four, two, and nine patients developed hypercalcemia, severe hyperphosphatemia, and high CaxP (>55), respectively. Almost all patients recovered to an acceptable level within 2 weeks of stopping doxercalciferol and adjusting the phosphate binder dose. In all, 21 patients required temporary stoppage of therapy. Most of them were restarted on therapy at a reduced dose during the study. It can, therefore, be concluded that doxercalciferol is effective in controlling SHPT in CKD-4 patients with an acceptable risk of hyperphosphatemia and hypercalcemia.

Nasobiliary drainage in acute cholestatic hepatitis with pruritus.

BACKGROUND/AIM: Cholestatic acute viral hepatitis may have prolonged course. Pruritus is often a prominent feature and difficult to control. Sometimes it may be accompanied by severe cough. There are no reports of endoscopic nasobiliary drainage in these patients. METHODS: We prospectively evaluated the role of nasobiliary drainage in six patients with cholestatic acute viral hepatitis with intractable pruritus and accompanying severe cough in one patient in an uncontrolled study. RESULTS: There were five male and one female patient with cholestatic acute viral hepatitis with intractable pruritus. One patient also had severe cough. Nasobiliary drainage relieved pruritus in all patients and patient with cough also showed marked improvement within 24h. Nasobiliary drainage also hastened the recovery in these patients. CONCLUSIONS: Short-term nasobiliary drainage should be considered in patients with cholestatic acute viral hepatitis with intractable pruritus and cough for symptomatic relief. It may help in faster recovery in these patients. However, a larger randomized controlled study is warranted.