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Titolo:
PERFUSION LUNG-SCANNING BEFORE AND AFTER PERCUTANEOUS TRANSVENOUS MITRAL COMMISSUROTOMY - EARLY ESTIMATION OF LUNG CONGESTION RELIEF
Autore:
HIROSE Y; HAYASHIDA K; ISHIDA Y; KIMURA K; TAKAMIYA M; NAGATA S; MIYATAKE K; UEHARA T; NISHIMURA T; ISHIKURA F;
Indirizzi:
NATL CARDIOVASC CTR,DEPT RADIOL,DIV NUCL MED,5-7-1 FUJISHIRODAI SUITAOSAKA 565 JAPAN NATL CARDIOVASC CTR,DEPT INTERNAL MED SUITA OSAKA 565 JAPAN OSAKA UNIV,SCH MED,BIOMED RES CTR OSAKA 553 JAPAN OSAKA KOSEI NENKIN HOSP,DEPT INTERNAL MED OSAKA JAPAN
Titolo Testata:
Japanese Circulation Journal
fascicolo: 6, volume: 59, anno: 1995,
pagine: 309 - 314
SICI:
0047-1828(1995)59:6<309:PLBAAP>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
ATRIAL-NATRIURETIC-PEPTIDE; INOUE BALLOON CATHETER; VALVULOPLASTY; STENOSIS;
Keywords:
MITRAL STENOSIS; PULMONARY HYPERTENSION; BALLOON VALVULOPLASTY; PERFUSION LUNG SCANNING; LUNG CONGESTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
15
Recensione:
Indirizzi per estratti:
Citazione:
Y. Hirose et al., "PERFUSION LUNG-SCANNING BEFORE AND AFTER PERCUTANEOUS TRANSVENOUS MITRAL COMMISSUROTOMY - EARLY ESTIMATION OF LUNG CONGESTION RELIEF", Japanese Circulation Journal, 59(6), 1995, pp. 309-314

Abstract

Percutaneous transvenous mitral commissurotomy (PTMC) has recently been used to treat mitral stenosis. The aim of this study was to evaluate the usefulness of radionuclide perfusion lung scanning in assessing the effect of PTMC on the relief of lung congestion. We studied 30 patients (7 males and 23 females, mean age 55 years). Perfusion lung scannings were performed within 1 week before and after PTMC. We calculated the ratio of activity in the upper quarter to that in the lower quarter of the right lung (Un) as an index of lung congestion. After PTMC,the mean mitral valve area increased from 1.1+/-0.3 to 1.9+/-0.4 cm(2) the mean left atrial pressure decreased from 14.8+/-6.3 to 9.1+/-3.5mmHg, the mean pulmonary artery pressure decreased from 22.7+/-8.6 to17.4+/-6.3 mmHg, and the U/L ratio decreased significantly from 0.89+/-0.40 to 0.68+/-0.24 (p<0.0001). The U/L ratio showed greater improvement (4.5%) in patients whose NYHA class improved (n=19) than in thosewhose NYHA class did not improve after PTMC. The U/L ratio was closely related to mitral valve area, and left atrial and pulmonary artery pressures. The change in the U/L ratio before and after PTMC also reflected symptomatic improvement. In conclusion, U/L ratios obtained from perfusion lung scannings before and after PTMC reflect mitral valve area and pressures, and can be used to assess lung congestion relief after PTMC.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 17:52:30