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Titolo:
SUPERIORITY OF ACCELERATION AND ACCELERATION TIME OVER PULSATILITY AND RESISTANCE INDEXES AS SCREENING-TESTS FOR RENAL-ARTERY STENOSIS
Autore:
BURDICK L; AIROLDI F; MARANA I; GIUSSANI M; ALBERTI C; CIANCI M; LOVARIA A; SACCHERI S; GAZZANO G; MORGANTI A;
Indirizzi:
UNIV MILAN,CTR FISIOL CLIN & IPERTENS,VIA F SFORZA 35 I-20122 MILAN ITALY UNIV MILAN,CTR FISIOL CLIN & IPERTENS I-20122 MILAN ITALY UNIV MILAN,IST CLIN MED GEN & TERAPIA MED I-20122 MILAN ITALY UNIV MILAN,IST MED INTERNA & FISIOPATOL MED MILAN ITALY OSPED MAGGIORE,IRCCS,SERV RADIOL 1 MILAN ITALY
Titolo Testata:
Journal of hypertension
fascicolo: 10, volume: 14, anno: 1996,
pagine: 1229 - 1235
SICI:
0263-6352(1996)14:10<1229:SOAAAT>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
DOPPLER WAVE-FORM; RENOVASCULAR HYPERTENSION; PULSUS TARDUS; US EVALUATION; INDEX; ANGIOGRAPHY; PREVALENCE; ULTRASOUND; DIAGNOSIS; DISEASE;
Keywords:
RENAL ARTERY STENOSIS; ECHO-DOPPLER VELOCIMETRY; AGE; ATHEROSCLEROSIS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
37
Recensione:
Indirizzi per estratti:
Citazione:
L. Burdick et al., "SUPERIORITY OF ACCELERATION AND ACCELERATION TIME OVER PULSATILITY AND RESISTANCE INDEXES AS SCREENING-TESTS FOR RENAL-ARTERY STENOSIS", Journal of hypertension, 14(10), 1996, pp. 1229-1235

Abstract

Objective To compare the accuracy of four echo-Doppler-derived velocimetric indices (pulsatility and resistance indices, acceleration and acceleration time) in detecting renal artery stenosis in hypertensive patients. Patients and methods In 73 hospitalized patients with moderate-to-severe hypertension, 18 of whom had normal renal arteries and 55 renal artery stenosis (50-95%) either atherosclerotic (30 cases, five bilateral) or fibromuscular dysplasia (25 cases, two bilateral), we measured the four velocimetric indices using the lateral abdominal approach and sampling Doppler waveforms distally to the stenosis, The diagnostic accuracy of each index was calculated using as cut-off limit theideal threshold determined with the receiver-operating characteristiccurves. Results On average all of the indices were altered significantly in arteries with stenosis of both aetiologies with respect to normal arteries, the alterations of pulsatility and resistance indices being, however, less pronounced than those of acceleration and acceleration time, particularly in atherosclerotic stenosis, With the cut-off limits of 0.93, 0.59 and 7.4 m/s(2) and 60 ms, respectively, for pulsatility and resistance indices, acceleration and acceleration time, theirdiagnostic accuracies were 80, 73, 93 and 92%. In stenotic arteries, only the acceleration time was correlated with the degree of arterial narrowing, whereas, in normal arteries, only pulsatility and resistance indices were directly correlated with the age of patients. Conclusions Acceleration and acceleration time are more accurate indices than pulsatility and resistance to screen for renal artery stenosis, probably because their alterations are less attenuated by the counterbalancing effects of age and of atherosclerosis.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 10:05:58