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Biomedical subjects

M Bass

Publications and source records attributed to M Bass.

At least 73 records · Page 4Linked to original sources
PubMed1983

The qualitative effects of laser irradiation on human arteriosclerotic disease.

To determine the effects of laser irradiation upon human coronary atherosclerotic disease, coronary plaques were extracted from fresh human cadaver hearts. Seventy-four diseased artery samples were sectioned either transversely or longitudinally and subjected to laser treatment from argon-ion and carbon dioxide sources. The laser beam affected vaporization and patency in fibrous, lipoid, and calcified plaques as observed histologically. Calcified blockage showed greater extent of charred remnants following controlled thermal injury than did fibrous or lipoid obstructions. The area and depth of penetration varied directly with intensity and duration of photoirradiation and inversely with the density of the atherosclerotic tissue. This study supports further research work on the use of lasers to effect relief of atherosclerotic obstructions.

Coronary Disease↗
PubMed1982

Meeting the challenge of research in family medicine: report of The Study Group on Family Medicine Research.

The challenge of research in family medicine is addressed in this paper by describing the rationale for research, appropriate content areas, resources available, and needs for the future. Family medicine has the opportunity to study health and disease in humans within their natural habitat over long periods of time, and to examine the multiple aspects of personal and family health care delivery. Resources for research include large primary care study populations, practitioner and faculty researchers, and technical support systems. The basic needs for the future are to increase the quantity and quality of researchers and to attract more funds designed for research. It is recommended that family medicine practitioners and teachers support research and participate more actively; that family medicine academic units provide their learners more research curricular time and their faculties more research activity time, and that they develop Family Medicine Research Centers; that family medicine professional organizations raise funds to support research, promote research opportunities for their members, and communicate to others the research activities, resources, and needs of family medicine; and that the requirements for residency training be modified to include elective research opportunities.

Canada↗
PubMed1980

Some observations on a program attaching public health nurses to family physicians' offices.

This study examined a program attaching public health nurses to specific family physicians practicing in the community. It compared the work of attached and nonattached public health nurses in both the urban and rural sections of a health district in Ontario, Canada. It found that attached nurses receive a greater proportion of their referrals from family physicians, see a greater percentage of elderly patients, and deal with proportionately more psychosocial cases. The study also indicated that the attached public health nurse does not complain of physician misuse of her services and that, once a referral has been made, communication between the physician and public health nurse improves.

Canada↗
PubMed1979

Spirometry in amyotrophic lateral sclerosis.

Clinical evaluation and pulmonary function tests were performed in 218 patients with motor neuron disease, mainly amyotrophic lateral sclerosis (ALS). Serial studies were obtained in 103 patients, in 31 until death from ALS. Most patients, regardless of the pattern of motor neuron involvement, had characteristic abnormalities in pulmonary function, including reduced forced vital capacity (FVC) and maximum voluntary ventilation (MVV). Reductions in the FVC and MVV to as low as 50% were commonly missed by clinical evaluators. Spirometry is therefore of value in detecting early involvement of respiratory neurons. Progressively greater reductions in the FVC and MVV in all the fatal cases indicate that serial spirometry has prognostic value in ALS.

Adult↗
PubMed1976

Endoscopic argon-ion laser phototherapy of bleeding gastric lesions.

An argon-ion laser, coupled to a flexible fiberoptic endoscope, was used to photocoagulate experimentally produced bleeding gastric ulcers in dogs. Argon-ion laser phototherapy rapidly and effectively achieved hemostasis in all bleeding ulcers. Bleeding arteries up to 2 mm in diameter were photocoagulated. Intact normal gastric mucosa was exposed to laser energy for varying periods of time to determine if transmural photothermal injury occurred. Exposure for greater than 15 seconds at 1.0 w of throughput power caused microscopical evidence of transmural injury. Healed, laser-treated ulcers could not be differentiated from nontreated control ulcers or normal stomach one month after injury. The Beer law and the heattransfer factors relating to soft tissues are discussed. The coupled argon-ion laser-endoscope may be a safe tool to treat self-limited superficial bleeding gastric lesions.

Animals↗
PubMed1975

An Ontario solution to medically underserviced areas: evaluation of an ongoing program.

In 1969 a program was established to place physicians in area of Ontario deemed to be medically underserviced. The main features of the program are area designation, physician subsidies, student bursaries, community participation and physician recruitment. From 1969 to March 1973, 162 communities were designated as underserviced and 196 physicians placed. As the program became active the rate of increase of numbers of physicians practising in northern rural areas (population, less than 15 000) increased sharply, exceeding that for the entire province. Fifty-three percent of bursaried students have honoured their commitment. Seventy-five communities have built modern medical centres that have been an important factor in attracting physicians. Still unanswered are whether the physicians will stay and whether the health of the population will be improved.

Community Health Services↗
PubMed1975

Laser-induced hemostasis in the canine stomach. Use of a flexible fiberoptic delivery system.

A flexible fiberoptic system has been used to deliver visible laser light into the upper gastrointestinal tract to arrest bleeding from various induced lesions. This procedure has achieved hemostasis at bleeding sites in the gastrointestinal tract of animals and suggests that bleeding lesions in the heman may be treated similarly without resort to surgical intervention or intensive medical management.

Animals↗