PubMed Health⌕ Search

Biomedical subjects

W F Weaver

Publications and source records attributed to W F Weaver.

13 recordsLinked to original sources
PubMed1991

Dual purpose computer aided program for cardiac catheterization laboratory data management.

This communication describes the design criteria used in the early systems analysis activity of the cardiac laboratory. This analysis activity required an understanding of the cardiology laboratory environment, the establishment of needs to be answered by the program, and the goals of the entire system. The rationale for inclusion of various cardiologic, demographic, quality assurance, and personnel safety parameters is discussed. The input forms used, the database structure created, and the information provided by an applications system are described. Since the system is built around a general-purpose computer (the IBM PC or compatible) and widely available powerful general purpose software, the entire system may be used for many other cardiology laboratory data management tasks.

Cardiac Catheterization↗
PubMed1991

Cardiac catheterization 1990: a report of the Registry of the Society for Cardiac Angiography and Interventions (SCA&I).

This report presents the first year's experience of a totally computerized cardiac catheterization laboratory reporting system, including the results and complications of invasive and interventional procedures. Sixty-three laboratories reported a total of 71,916 patients studied between January 1 through December 31, 1990. Two previous registry reports have been published. Compared with data acquired by previous methods, in spite of an older and sicker population, the mortality for diagnostic procedures has remained remarkably constant (0.11%). The computerized format facilitates data collection and analysis, helps resolve new issues as they arise and serves as a method of monitoring quality of laboratories and individuals.

Adult↗
PubMed1977

Mid-diastolic aortic valve opening in severe acute aortic regurgitation.

A case of severe acute aortic regurgitation is reported. Echocardiographic findings included mid-diastolic opening of the aortic valve, premature closure of the mitral valve, diastolic shuddering of the anterior mitral leaflet, probable demonstration of the flail aortic cusp in the left ventricular outflow tract, and increased left atrial and left ventricular dimensions. Correlation with hemodynamic, angiographic and surgical evidence is made.

Acute Disease↗
PubMed1976

Selective coronary arteriography. Risk in a community hospital.

Over a 33-month period, selective coronary arteriography was performed in 627 consecutive patients in a 385-bed, non-university-affiliated community hospital. Mortality was 0.16% (one death); there was also one nonfatal myocardial infarction. No deaths or myocardial infarctions occurred in the last 369 consecutive patients in this series when routine systemic heparinization was introduced. Substantially greater risk of mortality (2.6%) and nonfatal myocardial infarction (2.6%) was encountered in an earlier series of 78 consecutive patients for whom a different protocol was used. It included extensive exercise hemodynamic studies with the use of percutaneous arterial angiographic catheters, without systemic heparinization. This indicates that coronary arteriography can be carried out with acceptable risk in a community hospital. Protocols should be designed to minimize the time that catheters are in the arterial system. Systemic heparinization may reduce the risk of procedure-related death and myocardial infarction.

Angiography↗
PubMed1976

Aortic root dissection: echocardiographic demon-stration of torn intimal flap.

An unusual case of aortic root aneurysm with dissection is described. A large intimal tear allowed a flap of aortic tissue to sag into the lumen. The echocardiographic and angiographic findings simulated an aortic supravalvular membrane. Surgical replacement of the aortic valve and aortic root was successfully accomplished.

Angiocardiography↗
PubMed1976

Membranous subaortic stenosis complicated by aneurysm of the membranous septum and mitral valve prolapse.

The clinical, echocardiographic, and catheterization findings in a patient with discrete subaortic stenosis, aneurysm of the membranous interventricular septum, and mitral valve prolapse are presented. Echocardiography showed a subaortic membrane, abnormal aortic valve motion, accentuated systolic anterior motion of the membranous interventricular septum, and prolapsing mitral leaflets. Cardiac catheterization confirmed the diagnoses. The possible functional interrelationship of these lesions is discussed.

Adult↗
PubMed1975

Correlation between segmental early relaxation of the left ventricular wall and coronary occlusive disease.

Fifty of 305 patients studied angiographically had segmental early relaxation phenomenon (SERP) of the anterolateral or apical left ventricular wall. Fourteen of the 50 patients had cardiac abnormality other than, or in addition to, coronary occlusive disease. Of the remaining 36 patients, 35 had significant lesions in the left anterior descending artery (LAD) and one had occlusion of the proximal left circumflex artery. SERP was noted in 35 (37.2 per cent) of 94 patients with LAD disease who did not have severe anteroapical contraction abnormality. SERP was found in none of 49 patients who had neither significant coronary occlusive disease nor other cardiac abnormality. Eight patients were restudied after bypass grafting of the LAD. Three patients with patent grafts no longer demonstrated SERP. Five had persistent SERP, but four of these had occluded LAD grafts or nongrafted disease in other vessels supplying the anterolateral wall. Myocardial ischemia appears to be one cause, but probably not the only cause, of SERP.

Angiocardiography↗
PubMed1975

Bilateral arteriosclerotic coronary arterial aneurysms successfully treated with saphenous vein bypass grafting.

A man with ischemic heart disease was discovered to have bilateral coronary arterial aneurysms that were sucessfully treated with saphenous vein grafting. Preoperative coronary arteriograms revealed a tight luminal stenosis at the proximal end of the large aneurysm in the left anterior descending artery, suggesting poststenotic dilatation as an etiologic or contributing factor. The right coronary artery was totally occluded proximally, but was noted to be aneurysmal at operation. This is the 14th published case of nonfistulous coronary arterial aneurysm diagnosed in vivo, and the first associated with proximal luminal stenosis.

Arteries↗
PubMed1975

Bilateral nonfistulous congenital coronary arterial aneurysms.

A 15 year old boy collapsed and died after participating in a basketball game. Autopsy revealed bilateral congenital coronary arterial aneurysms. The diagnosis was made post mortem but, retrospectively, might have been suspected during life, even before angiography. The clues to the correct diagnosis were chest pain, a systolic and diastolic murmur and a mass on the right heart border in the chest roentgenogram.

Arteries↗