Prevalence of Kidney Stones Among Patients Presenting to Orotta Medical Surgical National Referral Hospital

Abstract Background Nephrolithiasis is a condition of having stones in the kidneys, which progressively lead to loss of renal function if untreated properly.1 The prevalence and incidence of kidney stones is increasing across the world.2 Methods A retrospectively collected data of kidney stone disease was reviewed on patients who visited the outpatient department of Orotta Medical Surgical National Referral Hospital from January 2012 to December 2012. Results Out of 30,335 patients 173 were confirmed to have stones making them 0.5%. Generally results show male predominance with male to female ratio of 2.46:1. Results also show prevalence decreases as age increases with the highest among the age group 15-25 making a prevalence rate of 27.7% with observed significance of 0.002. Out of those patients who visited the outpatient department patients from Zoba Maekel were the highest in number (59.9%) followed by Debub (19.1%) while the southern Red Sea Zone had the lowest prevalence (2.3%). Majority of the stones were found on the kidney comprising about 80.3%, followed by ureter 16.8% of patients and 2.9% stones were located on the bladder. When data was reviewed for associated co morbidity only one patient had associated Diabetes mellitus and Hypertension, three had ectopic kidney(1.7%), one had renal cyst (0.6%) and 12 (6.9%) patients were complicated with hydronephrosis. (P=0.548) Conclusions The prevalence of kidney stone in Orotta Medical Surgical National Referral hospital from January to December 2012 is 0.5%, with higher predominance in men than in women with a ratio of 2.46:1.