摘要:

AbstractAn unusual case of sudden occlusion of a saphenous vein bypass graft to the right coronary artery, during a coronary angtographlc study, is presented. Such occlusion was relieved by direct intragraft nitroglycerine injection, as typically happens in case of coronary arterial spasm. A possible pathogenetlc mechanism, based on the present knowledge of platelet aggregation and the role of the powerful vasoactive agent Throm‐boxane A2, is discusse

ISSN:0098-6569    

DOI:10.1002/ccd.1810070112

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1981

数据来源: WILEY

ISSN:0098-6569    

DOI:10.1002/ccd.1810070113

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1981

数据来源: WILEY

ISSN:0098-6569    

DOI:10.1002/ccd.1810070114

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1981

数据来源: WILEY

摘要:

AbstractPresent methods of assessing trlcuspld regurgttation are often unreliable. We present preliminary data concerning a new angiographic method for identification of tricuspid regurgttation which evaluates direction of flow of contrast media during right ventricular (RV) systole in the Inferior vena cava (IVC) and hepatic veins following right atrial or IVC angiography.Group I consisted of 15 patients who had tricuspid regurgttation by conventional criteria. AIM 5 patients exhibited reversal of venoatrial flow by right atrial or inferior vena cava angiography. In a control group (group III) of 20 patients who do not have clinical tricuspid regurgttation, one patient demonstrated retrograde flow. Group II consisted of 11 patients wtth mttral valve disease and mild to moderate pulmonary hypertension. All 11 had no conventional evidence of tricuspid regurgttation; however, all 11 had the pathophysiologlc potential for tricuspid regurgttatlon. Five of 11 had reversal of venoatrial flow during RV systole, suggesting the presence of clinically inapparent tricuspidIn conclusion, preliminary data suggest that angiographic reversal of venoatrial flow may be both sensitive and specific for the presence of tricuspid regurgttation. Further investigation wtth comparison to RV angiography and real‐time echocardiography should be performe

ISSN:0098-6569    

DOI:10.1002/ccd.1810070115

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1981

数据来源: WILEY

摘要:

AbstractPercutaneous entry of the brachial artery using a sheath system has been attempted in 223 patients undergoing left heart Catheterization; successfully, In 212. After arterial puncture, a dilator and sheath are passed over a short guWewire. A number 7–80 cm Sones specially stiffened coronary catheter Is passed through the sheath, and left heart Catheterization Is performed in the usual manner. The study can usually be completed with this single catheter. Initial entry, as well as any needed catheter change, Is facilitated by the use of an inflatable sphygmomanometer cuff around the upper arm. Ease of manipulation and patient comfort have been satisfactory, and brachial artery spasm has not been encountered. There have been no major complications and a low incidence (∼ 1.5%) of brachial arterial occlus

ISSN:0098-6569    

DOI:10.1002/ccd.1810070116

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1981

数据来源: WILEY

ISSN:0098-6569    

DOI:10.1002/ccd.1810070117

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1981

数据来源: WILEY

ISSN:0098-6569    

DOI:10.1002/ccd.1810070118

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1981

数据来源: WILEY

ISSN:0098-6569    

DOI:10.1002/ccd.1810070119

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1981

数据来源: WILEY

ISSN:0098-6569    

DOI:10.1002/ccd.1810070101

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1981

数据来源: WILEY