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Biomedical subjects

R M ANDERSON

Publications and source records attributed to R M ANDERSON.

At least 37 records · Page 2Linked to original sources
PubMed1959

Cardiac operations with extracorporeal circulation.

In a series of 50 patients for whom a heart-lung machine was used for periods as long as 70 minutes during operations to correct structural defects of the heart, there were no deaths attributable to the machine. Seven patients died. Two of them had high pressure ventricular septal defects with bidirectional shunts; a third patient with the same lesion recovered after repair. One patient died of cardiac tamponade when a large blood clot formed about the entire heart in a loosely closed pericardial sac. Others died of various causes. The development of subacute bacterial endocarditis in one patient led to a change in sterilization of apparatus.

Cardiac Surgical Procedures↗
PubMed1958

Cardiac operations under direct vision; experience with extracoporeal oxygenation of the blood.

A heart-lung machine capable of oxygenating the blood and maintaining normal pressures during cardiopulmonary by-pass was used in 11 cases in which cardiac operations with the heart under direct vision were carried out. The first patient died. Improvements then were made in the machine and it was used in ten additional operations. One of the ten patients died, 18 hours postoperatively, of cardiac tamponade. Since then six more patients have been operated upon with no complications.

Cardiac Surgical Procedures↗
PubMed1958

Left heart catheterization; the clinical importance of findings.

Left heart catheterization using the transbronchial route to obtain pressures in the left atrium and left ventricle was used successfully in 29 cases with no mortality or morbidity. It was found to be useful in differentiating between mitral stenosis and mitral insufficiency, as well as determining the amount of aortic stenosis present when there was involvement of the aortic valve. The technique was also helpful in determining which is the predominant lesion when there is a disease of the aortic and mitral valves. In two patients in a series of 29, data obtained by left heart catheterization forestalled operation on the basis of a mistaken diagnosis of mitral stenosis when actually no mitral valvular disease was present. In another eight patients, the predominant lesion was found to be mitral stenosis rather than mitral insufficiency as it was thought to be before catheterization. In two patients, who had only systolic murmurs, catheterization revealed mitral stenosis rather than mitral insufficiency. In four patients who were thought to have mixed valvular disease, left heart catheterization showed only aortic valvular disease.

Aorta↗