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Biomedical subjects

C C Caudill

Publications and source records attributed to C C Caudill.

At least 19 recordsLinked to original sources
PubMed1996

Percutaneous extraction of a fractured, exposed atrial "J" lead retention wire.

The recent identification of fracturing of the retention wire in the Telectronics atrial lead, models 329-701 and 330-801, and the report of death due to cardiac tamponade caused by aortic puncture resulting from protrusion of the retention wire, necessitates fluoroscopic screening of these patients and the explantation of all leads identified to have the component failure. We present in this paper a percutaneous alternative to lead explantation in patients with protrusion of the retention wire through the polyurethane insulation and with an otherwise properly functioning atrial lead.

Electrodes, Implanted↗
PubMed1996

Supply and demand.

Explore the source record for details and available documents.

Health Workforce↗
PubMed1996

Medic aid managed care. The NMA white paper.

The Nebraska Medical Association understands that our state has finite financial resources and must balance that reality against its obligations to its citizens. Our State Legislature has directed that a "Managed Care" format be used with the Medicaid Program, assuming that the dollars allocated to it will be frugally and wisely spent. This is only an appropriate exercise of its fiscal responsibility, and we respect that. The NMA believes, however, that while all parties must work collectively toward that end, at the same time, we must acknowledge that denial of appropriate care is false economy, and poor management is costly in the long-term. Further, no plan of this complexity is likely to begin and finish in the same form, but rather must evolve. The NMA believes that all involved should strive to achieve an effective and cost-efficient system which cares about and for its clients. Finally, we must acknowledge the heterogeneity of our state, and we must therefore recognize that a plan which "fits" for one region will not predictably meet the needs and conditions of another.

Cost-Benefit Analysis↗
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

Reflex vasodilation induced by coronary angiography in human subjects.

In order to evaluate the reflex peripheral vascular effects of coronary arteriography, forearm blood flow was measured plethysmographically and forearm vascular resistance calculated before and during coronary angiography with Hypaque-M, 75%, and Renografin-76. The injection of Hypaque into the left coronary artery resulted in a forearm vasodilation which could not be duplicated by an injection of a comparable amount of contrast into the ascending aorta, three centimeters above the coronary ostia. Forearm blood flow rose from 2.95 to 5.41 ml/min/100 ml (83.4%) and forearm vascular resistance fell from 35.8 to 19.9 mm Hg/ml/min/100 ml (44.4%). Renografin injected into the left coronary artery resulted in less forearm vasodilation (21% increase in forearm blood flow and 32% decrease in forearm vascular resistance). When coronary arteriography was repeated following injection of atropine into the brachial artery, no forearm vasodilation occurred. It is suggested that in human subjects myocardial or coronary artery receptors can be activated by the intracoronary injection of iodinated contrast media which results in a forearm vasodilation.

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↗