Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Renal artery stenosis: Duplex US after angioplasty and stent placement
Autore:
Sharafuddin, MJA; Raboi, CA; Abu-Yousef, M; Lawton, WJ; Gordon, JA;
Indirizzi:
Univ Iowa Hosp & Clin, Dept Radiol, Iowa City, IA 52242 USA Univ Iowa Hosp& Clin Iowa City IA USA 52242 iol, Iowa City, IA 52242 USA Univ Iowa Hosp & Clin, Dept Internal Med, Div Nephrol, Iowa City, IA 52242USA Univ Iowa Hosp & Clin Iowa City IA USA 52242 hrol, Iowa City, IA 52242USA Vet Adm Med Ctr, Dept Radiol, Iowa City, IA USA Vet Adm Med Ctr Iowa CityIA USA Med Ctr, Dept Radiol, Iowa City, IA USA
Titolo Testata:
RADIOLOGY
fascicolo: 1, volume: 220, anno: 2001,
pagine: 168 - 173
SICI:
0033-8419(200107)220:1<168:RASDUA>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
DOPPLER WAVE-FORM; RENOVASCULAR DISEASE; BALLOON ANGIOPLASTY; PALMAZ STENT; FOLLOW-UP; WALLSTENT ENDOPROSTHESIS; TRANSLUMINAL ANGIOPLASTY; PULSUS-TARDUS; SONOGRAPHY; PARVUS;
Keywords:
hypertension, renovascular; renal arteries, stenosis or obstruction; renal arteries, transluminal angioplasty; renal arteries, US; stents and prostheses; ultrasound (US), Doppler studies;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
43
Recensione:
Indirizzi per estratti:
Indirizzo: Sharafuddin, MJA Univ Iowa Hosp & Clin, Dept Radiol, 200 Hawkins DR,3889 JPP, Iowa City, IA52242 USA Univ Iowa Hosp & Clin 200 Hawkins DR,3889 JPP Iowa City IA USA 52242
Citazione:
M.J.A. Sharafuddin et al., "Renal artery stenosis: Duplex US after angioplasty and stent placement", RADIOLOGY, 220(1), 2001, pp. 168-173

Abstract

PURPOSE: To evaluate the hemodynamic outcome of technically successful percutaneous transluminal renal artery angioplasty and stent placement (PTRAS)with duplex ultrasonography (US). MATERIALS AND METHODS: Eighteen patients who underwent PTRAS in 22 renal arteries were prospectively examined. All had abnormal preprocedural duplex US findings. Those who had significant renal artery stenosis (> 70%) at angiography and underwent technically successful percutaneous interventions were enrolled. Standard intrarenal duplex US parameters (acceleration index [Al], acceleration time, waveform morphology grade, and resistive index) were compared before and after interventions. RESULTS: A significant Al increase occurred after PTRAS (9.02 m/sec(2) +/-4.85 [SD]), as compared with before intervention (2.34 m/sec(2) +/- 2.03; P < .001). Acceleration time significantly decreased from 0.084 second +/- 0.049 to 0.032 second +/- 0.008 (P < .01). There was also a significant resistive index increase from 0.69 +/- 0.12 to 0.79 +/- 0.12 (P < .01). Abnormal waveform morphology (modified Malpern waveform grade 3-6) was present in19 (86%) of 22 intrarenal arteries prior to intervention, as compared withone (5%) after PTRAS (P < .001). In the instance in which an abnormal waveform persisted after intervention, waveform morphology improved from grade 6 to grade 3, with a concomitant Al increase from 0.96 to 5.1 m/sec2. CONCLUSION: The findings suggest an important potential role for duplex USin noninvasive assessment of the immediate hemodynamic outcome and long-term follow-up of PTRAS.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 10:40:51