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  • Title: [Screening for renovascular hypertension in own material (1986-1998)].
    Author: Wańkowicz Z, Smoszna J, Przedlacki J, Stembrowicz Z.
    Journal: Pol Merkur Lekarski; 1998 Nov; 5(29):261-5. PubMed ID: 10101495.
    Abstract:
    In 370 patients (pts) with hypertension(HT) in years 1986-1998 (168F + 202M, mean age 46 yrs) screening value of the following tests was evaluated: standard initial angioscintigraphy DTPA 99mTc(SA) in all pts(1-st screening group), significance of clinical suspicion on renovascular hypertension (RVHT) in the group of 74 pts (II-nd screening group). Captopril tests: renin captopril test(RCT) and isotopic captopril test (ICT) were performed in all 370 pts. Classical renal angiography as a reference test for renal artery stenosis (RAS) was performed in all pts suspected for RVHT on the basis of clinical anamnesis and or positive results of captopril tests. Results were as follows. Initial SA being abnormal in the whole group, appeared to be more significant for RAS only in the case of profound one side renal ischemia (GFR lower than 30% of total GFR). Resistance to three antihypertensive drugs, diastolic blood pressure > 120 mmHg and sudden onset of Ht, found in all 74 pts from the II-nd group, were the most significant clinical symptoms of RVHT, because critical RAS was found in 41, that is 55% of pts from the II-nd group. At least one positive CT was found in 37 from 42 pts with critical RAS in angiography with RTC being more sensitive and ICT more specific for hemodynamically significant RAS. The following screening protocol for RVHT was presented and discussed: precise clinical anamnesis followed by angiography or captopril tests according to the severity of clinical symptoms, aim of the study as well as accessibility and laboratory reproducibility of the captopril tests.
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