A. Maisara

Correlation between hypertension and characteristics of renal cysts including parapelvic cysts

A simple renal cyst accounts for 70% of all asymptomatic renal tumors. It is common knowledge that symptomatic arterial hypertension is available in 20% of patients having cystic affection of kydneys and it is a major indication for surgical or little-invasive cyst excision. Analysis of contemporary scientific literature contains very limited data about correlation between arterial hypertension and the localisation of a cystic tumour in kydneys including parapelvic ones. It seems to be an important factor in the genesis of arterial hypertension as well as in the prognosis of positive results in the treatment of simple renal cysts.

This paper presents data of 276 patients having renal cysts of various localisation and who have been examined and treated in Kharkov Regional Clinical Center of Urology and Nephrology named after V.I. Shapoval in 2011-2015. The spread, correlation and association of hypertension and characteristics of renal cysts are presented in details.

Analysis of the examination of 123 patients having hypertension shows that 35 patients (28,5%) have cysts in the renal sinus, i.e. parapelvic ones, 33 patients (26,8%) have bilateral cysts, 51 patients (41,5%) have two and more visually detected cysts on one side, 67 patients (54,5%) have cysts from 3 to 5 cm in size, 56 patients (45,5%) have cysts more than 5 cm.

The results of the examination of patients demonstrate that a simple cyst is associated with a higher risk of hypertension especially if renal cysts are bylateral and there are more than two cysts and the diameter of tumor exceeds 3 cm. Our research demonstrates correlation between a simple renal cyst, including parapelvic, and hypertension though, it is not enough to authenticate the original cause of the link.