Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
PRESERVATION OF HIGH REGIONAL BLOOD-FLOW AT EPICARDIAL RIM AFTER CORONARY-OCCLUSION IN DOGS
Autore:
ISHIKAWA K; KAMATA N; NAKAI S; AKIYAMA H; KOKA H; OGAWA I; KATORI R;
Indirizzi:
KINKI UNIV,SCH MED,DEPT MED 1 SAYAMA OSAKA 589 JAPAN
Titolo Testata:
The American journal of physiology
fascicolo: 2, volume: 267, anno: 1994,
parte:, 2
pagine: 80000528 - 80000534
SICI:
0002-9513(1994)267:2<80000528:POHRBA>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
MYOCARDIAL INFARCT EXPANSION; ISCHEMIA; SALVAGE; REPERFUSION; COLLATERALS; PERFUSION; EXTENT; SIZE;
Keywords:
MYOCARDIAL INFARCTION; COLLATERAL CIRCULATION; COLORED MICROSPHERE TECHNIQUE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
34
Recensione:
Indirizzi per estratti:
Citazione:
K. Ishikawa et al., "PRESERVATION OF HIGH REGIONAL BLOOD-FLOW AT EPICARDIAL RIM AFTER CORONARY-OCCLUSION IN DOGS", The American journal of physiology, 267(2), 1994, pp. 80000528-80000534

Abstract

A thin myocardial layer adjacent to the epicardium (epicardial rim) often survives after transmural myocardial infarction. Regional myocardial blood flow (Q(m)) at this rim may be high enough to maintain myocardial viability during coronary occlusion. To test this hypothesis, wemeasured Q(m) in 12 anesthetized dogs during left anterior descendingcoronary artery occlusion using nonradioactive colored microspheres. Myocardium in the region supplied by the occluded artery was sliced into sections similar to 0.5 mm thick from the epicardial surface to theendocardium, and the Q(m) in each section was determined. During occlusion, the Q(m) of myocardium within 0.5 mm of the epicardial surface remained at 74.8 +/- 8.8% of the preocclusion level. Maintenance of this high Q(m) during occlusion was abolished when an epicardial incision similar to 1 mm deep was made around the occluded area. These findings suggest that Q(m) is maintained at a surprisingly high level at theepicardial rim after coronary occlusion through epicardial arterial communications, which may be sufficient to maintain myocardial viability.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/04/20 alle ore 02:56:12