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F A Heupler

Publications and source records attributed to F A Heupler.

11 recordsLinked to original sources

Infection prevention guidelines for cardiac catheterization laboratories. Society for Cardiac Angiography and Interventions Laboratory Performance Standards Committee.

The following guidelines for prevention of catheterization laboratory infections are based on standard precautions for infection prevention in surgical wounds. Specific recommendations for patient preparation include proper methods for hair removal, skin cleaning and draping, antibiotic prophylaxis, wound irrigation and dressing, and sheath removal. Sterile precautions should be more vigorous for cutdown procedures compared to percutaneous. Caps, masks, gowns, and gloves help to protect both the patient and operator. Handwashing is the most important procedure for preventing infections. Maintenance of the catheterization laboratory environment includes appropriate cleaning, limitation of traffic, and maintenance of adequate ventilation. Proper catheterization technique and appropriate use of sterile equipment will decrease the wound infection rate. Protection of personnel may be accomplished by proper gowning and gloving, disposal of contaminated equipment, and care of puncture wounds and lacerations. All personnel should receive vaccination for hepatitis B.

Cardiac Catheterization

Initial coronary air embolus in the differential diagnosis of coronary artery spasm.

Angiographic and electrocardiographic manifestations of initial coronary air embolism were seen in 4 patients and in a dog. All 4 patients had angina pectoris, 2 had ST elevation, 1 patient had ST depression and 1 had no electrocardiographic change after the air embolus. Although the initial diagnosis in these 4 patients was coronary artery spasm, a subsequent ergonovine test response for coronary artery spasm was negative in the 3 patients in whom it was performed. In a dog, initial injection of air in a coronary artery produced ST-segment elevation and delayed clearance of contrast material. The angiographic appearance of initial air embolus was similar in the 4 patients and in the dog. The leading edge of contrast material that followed an air embolus stopped abruptly, appeared hazy and blunt, and pulsated back and forth. The air embolus produced temporary cessation of flow in the main artery and its branches. Initial injection of air during coronary arteriography mimics coronary artery spasm by producing a syndrome characterized by angina, ischemic changes on the electrocardiogram, and delayed flow of contrast material. An initial air embolus may be differentiated from true coronary spasm by several distinctive angiographic features.

Adult

Electrocardiographic evidence suggestive of myocardial infarction without significant organic heart disease.

One hundred nineteen catheterized patients had ECG evidence of myocardial infarction in the absence of significant narrowing of coronary arteries or localized contractile abnormalities of the left ventricle. Eighty-seven had organic heart disease, but 32 had no demonstrable abnormality. ECG alterations in the latter group were almost equally divided between those in lead aVF and in the right precordial leads. Although certain depolarization defects are highly suggestive of myocardial infarction, similar changes may rarely be seen in normal people.

Adult

Nifedipine therapy for refractory coronary arterial spasm.

Nifedipine was evaluated in the management of eight patients with intractable coronary arterial spasm. All had Prinzmetal's variant angina, normal or mildly abnormal coronary arteriograms, and a positive ergonovine maleate provocative test. Anginal attacks occurred at least three times a week in all patients during isosorbide dinitrate therapy. All patients had a decrease in frequency of ischemic attacks with nifedipine. Seven patients underwent repeat Holter monitor evaluation, which confirmed the absence of ischemic changes while they were taking nifedipine. When nifedipine dosage was decreased.or therapy discontinued in six patients, all experienced a recurrence of anginal attacks. Two patients had minor side effects, which required a decrease in the dose of nifedipine. Nifedipine was well tolerated, and no major complications occurred with its use. Nifedipine appears to be effective in the management of patients with symptomatic coronary arterial spasm and normal or mildly abnormal coronary arteriograms. Our data justify further investigation of nifedipine for treatment of such patients.

Adult

Spasm.

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Acute Disease

Angiographic interpretation and surgical management of right coronary artery obstructions.

We have found that even high quality arteriography and multiple projections may not clearly delineate the total extent of disease in a severely obstructed right coronary artery. Selection of the anastomotic site is more often based upon the operative findings. Totally obstructed vessels can be more aggressively explored and opened, because failure of adequate graft reconstruction does not result in significant infarction. Once a subtotally obstructed right coronary artery has been opened, the surgeon must achieve a patent anastomosis in order to avoid acute, possibility lethal diaphragmatic infarction. With careful isolation of the bifurcation and its primary branches, the majority of even heavily calcified vessels can be grafted without endarterectomy. If a totally obstructed and poor quality right coronary artery is well filled by collaterals from the left, it may not be necessary to bypass the right coronary artery when successful grafting of the left anterior descending or circumflex branches or both has been accomplished. Although the right coronary artery is frequently more diffusely diseased than the left coronary branches, with careful selection of the anastomotic site and attention to surgical detail, the vast majority of these arteries can be successfully bypassed.

Coronary Angiography