Assessment of the effectiveness of antihypertensive therapy in early postoperative period in patients with kidney tumors after nephrectomy

Objective. To analyze the dynamics of blood pressure in the early postoperative period in hypertensive patients with kidney tumor after nephrectomy. Design and methods. We examined 96 patients with cardiovascular diseases and kidney tumors, at the age from 41 up to 75 years (mean age — 57 ± 6,3 years), who were planned for nephrectomy (I group). Group II included 53 patients aged 37-65 years (mean age — 49 ± of 7,2 years) who underwent laparoscopic nephrectomy. Daily monitoring of blood pressure MECG-DS-HC-01 («LCA Advanced technologies», Russia) was performed in all subjects. Results. Young hypertensive patients (from 40 to 48 years, mean age — 43,7 ± 4,6 years) demonstrated blood pressure elevation in the early postoperative period after nephrectomy even when antihypertensive medication was taken. At the same time elderly patients (from 56 to 85 years of age, mean age — 65,3 ± 7,5 years) develop hypotension episodes. Calcium channel blockers appeared to be highly effective in young patients who also demonstrated higher blood pressure levels in the postoperative period after laparoscopic nephrectomy, as compared with patients after open surgery. On the second day after the open nephrectomy 22,9 % (22 of 96) patients required antihypertensive treatment correction, and on the tenth only 1 % (1 patient out of 96) required treatment enhancement, whereas in group II on the second day after the intervention 100 % patients required therapy enhancement, and on the tenth day 60,4 % (32 out of 53) patients needed some correction of the treatment. Conclusions. Hypertensive patients with kidney tumors require precise control of blood pressure before the operation and correction of antihypertensive therapy, as almost one third of the patients develop increase of blood pressure in postoperative period. Calcium channel antagonists should be considered as a drug of choice in the young patietnts (mean age — 44 years) as they allow to achieve target blood pressure, that is necessary to improve renal blood flow and protects the kidney. At the same time 20 % of elderly patients (age 66) develop hypotension episodes requiring lower doses of antihypertensive drugs.

daily blood pressure monitoring, nephrectomy, arterial hypertension, kidney tumor, calcium channel antagonists

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