Results of urinary dissolution therapy for radiolucent calculi

Purpose In this paper we present our experience with dissolution therapy of radiolucent calculi. Materials and Methods This was a retrospective analysis of patients who were offered urinary dissolution therapy between January 2010 and June 2011. Patients were treated with tablets containing potassium citrate and magnesium oxide. Partial dissolution was defined as at least a 50% reduction in stone size. Patients with complete or partial dissolution were classified in the successful dissolution group. Patients with no change, inadequate reduction, increase in stone size and those unable to tolerate alkali therapy were classified as failures. Patient sex, stenting before alkalinization, stone size, urine pH at presentation and serum uric acid levels were analyzed using Fisher t-test for an association with successful dissolution. Results Out of 67, 48 patients reported for follow up. 10 (15%) had complete dissolution and 13 (19%) had partial dissolution. Alkalinization was unsuccessful in achieving dissolution in 25 (37%). Stenting before alkalinization, patient weight (< 60 vs. > 75kg) and serum uric acid levels (≤ 6 vs. > 6) were the only factors to significantly affected dissolution rates (p = 0.039, p 0.035, p 0.01 respectively). CONCLUSIONS A policy of offering dissolution therapy to patients with radiolucent calculi had a successful outcome in 34% of patients. .

A 10-year experience of managing acute limb ischaemia in India.

Background. Acute limb ischaemia is threatening to both limb and life. There is little information about this disease entity from India. Methods. We did a retrospective analysis of the clinical profile of patients presenting with non-traumatic acute limb ischaemia to our department (a tertiary care centre in India) from January 1998 to December 2007. The demography, risk factors, time taken to present to the emergency from the onset of symptoms, time taken to administer the first dose of heparin upon arrival to the emergency, primary interventions and outcomes in terms of amputation rates and in-hospital mortality were studied. Results. The mean (SD) age of the 84 patients was 48.9 (14.3) years. Only one patient died (1.2%) and 24 patients had an amputation (28.6%). Among the predisposing risk factors a significant association was found between smoking and the rate of amputation. Early presentation to emergency and early administration of heparin was associated with lower amputation rates though this did not achieve statistical significance. Conclusion. Acute limb ischaemia is a catastrophic event. Smoking is a risk factor associated with poorer outcomes. Early arrival to the emergency and early administration of heparin was associated with lower amputation rates.