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Biomedical subjects

R B LYNN

Publications and source records attributed to R B LYNN.

At least 19 recordsLinked to original sources
PubMed1964

A HEMODILUTION TECHNIQUE FOR OPEN-HEART SURGERY: A PRELIMINARY CLINICAL REPORT.

With the extension of open-heart procedures and the increasing success of open-heart surgery, a great strain has been placed on many hospital laboratories and on the Red Cross for the maintenance of equipment and the supply of blood. In order to decrease both of these needs, hemodilution techniques combined with disposable oxygenators have been introduced. The authors have used a disposable oxygenator with low molecular weight dextran prime, along with moderate hypothermia, in a consecutive series of 15 patients operated upon for congenital and acquired heart lesions. In this consecutive series there has been one death and this could not be attributed to the perfusion technique but to the surgical procedure carried out. It is felt that this combination not only broadens the horizons of open-heart surgery but makes the procedure more readily available and safer, as well as being economical of blood donors and time.

Adolescent↗
PubMed1964

EFFECTS OF IRRADIATION ON LUNG FUNCTION.

With refinements in radiotherapeutic techniques in recent years, the incidence of pulmonary damage attributable to irradiation has decreased. A significant number of patients, however, still show radiographic evidence of irradiation pneumonitis, with or without associated symptoms. Although these appearances are usually transitory, in some patients they may persist and be associated with varying degrees of pulmonary insufficiency.This report presents an evaluation of the radiographic changes, symptoms, and pulmonary function following irradiation of the chest wall (as for cancer of the breast) in one group of patients, and following deep irradiation of the chest (as for cancer of the lung) in a second group. Forty patients were studied, of whom 32 are available for assessment (20 with carcinoma of the breast and 12 with bronchogenic carcinoma). These patients were studied preoperatively, and from three to 15 months following irradiation. The findings with respect to radiographic appearance, pulmonary function, and symptoms of these patients are presented.

Blood Gas Analysis↗
PubMed1964

THE ROLE OF SYMPATHECTOMY IN THE TREATMENT OF OBLITERATIVE PERIPHERAL VASCULAR DISEASE.

The immediate good results of endarterectomy and vascular grafting have pushed sympathectomy into the background as a form of treatment for peripheral obliterative arterial diseases. There are, however, many instances in which the nature of the arterial disease prevents performance of direct arterial surgery. In these cases an increase in circulation to the skin may not only relieve pain and heal ulcers but also, not infrequently, save the limb from amputation or permit a minor rather than a major amputation.A consecutive group of 90 lumbar and cervicodorsal sympathectomies was reviewed. The majority of patients suffered from atherosclerosis; smaller numbers had Buerger's or Raynaud's disease. The assessment of patients, selection for surgery, technique of operation, its complications and early results are discussed. There was one death in this series of patients who ranged in age from 17 to 81 years. This study indicates that, although sympathectomy is not a panacea for obliterative arterial disease, neither is it an obsolete procedure.

Amputation, Surgical↗
PubMed1963

DECORTICATION OF THE LUNG.

Excision of an empyema sac and thickened pleura from the lung and chest wall has been performed for over 70 years. The most appropriate fields of application of this procedure are in treatment of tuberculous empyema, empyema complicating pneumonic processes (most frequently caused by staphylococcal infection), and clotted hemothorax following chest injury. The authors' experience with 33 such decortications in the past five years is described, observations concerning the techniques, complications, and end results of the procedure are discussed, and illustrative case reports are presented.

Empyema↗
PubMed1963

SOME OBSERVATIONS ON MYOCARDIAL REVASCULARIZATION.

Since 1929 various surgical procedures have been devised to revascularize the ischemic heart to provide it with blood from extracoronary sources. A comparative study has been carried out in 80 mongrel dogs over a two-year period to evaluate the relative merits of cardio-omentopexy, left atrial pulmonary artery anastomosis and the Ivalon sponge operation. The Ivalon sponge procedure proved to be most effective in relieving artificially produced myocardial ischemia. The procedure has subsequently been carried out in two patients with crippling angina pectoris, and a complete relief of symptoms has been achieved in both.

Angina Pectoris↗