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Biomedical subjects

R C Shaw

Publications and source records attributed to R C Shaw.

At least 19 recordsLinked to original sources
PubMed1996

A case for unique allied health student enrollment control within a selective university setting.

Expanding allied health preprofessional enrollment encouraged analyzing graduation outcomes to identify criteria that would help control future enrollment. High School Class PERCENTILE Rank, First year Students' predicted QUARTILE ranks and ACT scores were independent variables in the study. QUARTILE reflected predicted First year Students' GPA. Relationships between graduating, PERCENTILE, ACT and QUARTILE were assessed by discriminant analysis, t tests and ANOVA. Students' last-known-LOCATION (University of Missouri-Columbia(UMC) School of Health Related Profession (SHRP), left UMC, another UMC division) was also investigated concerning GRADUATION status and QUARTILE by Chi Square analysis. Results suggested PERCENTILE discriminated between graduates of UMC SHRP and other UMC divisions. SHRP graduates had a higher PERCENTILE mean than graduates of other UMC divisions. Students in the lowest quartile had little chance of graduating from an SHRP program. Excluding the lowest quarter of First year Students from SHRP would effectively control enrollment.

Achievement↗
PubMed1987

Toxic shock syndrome following breast and nasal surgery.

Toxic shock syndrome is a rapidly developing disease which may be lethal if not recognized and treated early. While this disease is usually associated with menstruating females, it is being seen in both male and female patients following clean, elective surgery. Toxic shock syndrome has been reported following surgical procedures which normally have a very low incidence of postoperative wound infections. Toxic shock syndrome is associated with Staphylococcus aureus bacteria which produce the toxic shock syndrome toxin 1. Three patients with postoperative toxic shock syndrome, of varying degrees of severity, are presented. Prompt institution of resuscitative and therapeutic measures can prevent the potentially fatal outcome of this postoperative complication.

Adult↗
PubMed1986

Semen assessment, fertility and the selection of Hereford bulls for use in AI.

Nineteen young Hereford bulls were used to study the relationship between semen characteristics and fertility in artificial insemination following 15 320 inseminations. Seven measures of sperm motility, morphological abnormalities, the release of hyaluronidase, ATP content and sperm head measurements were examined as predictors of fertility (49-day fixed-interval non-return rate). Two assessments of motility, three categories of abnormal spermatozoa, acrosomal changes and the release of hyaluronidase had predictive power. Multiple regression analysis showed that a combination of sperm motility after dilution in saline, motility after thawing and the proportion of coiled tails and proximal protoplasmic droplets provided the best prediction of fertility and allowed bulls to be ranked in order of observed non-return rate (%) with a Spearman correlation better than +0.80.

Adenosine Triphosphate↗
PubMed1982

Pregnancy diagnosis in dairy herds in England and Wales.

A survey of 1692 dairy farmers in England and Wales in 1979 revealed that 14.2 per cent had veterinary pregnancy diagnoses carried out on more than half their cows, 43.8 per cent on less than half and 42.0 per cent had none. The results showed a considerable increase in the use of pregnancy diagnosis since a survey in 1969. Farmers with larger herds tended to make more use of pregnancy diagnosis and there were also some regional differences. In 64.6 per cent of herds pregnancy diagnosis was carried out during the third and fourth months of pregnancy; 93.3 per cent of herds in which more than half the cows were diagnosed were examined before the fourth month. Owners of pedigree herds used pregnancy diagnosis more than commercial herd owners. The milk progesterone assay pregnancy test was used by 4.3 per cent of farmers on more than half their cows, and by a further 1.9 per cent of farmers on some cows. More than 75 per cent of farmers using the milk progesterone test also used veterinary pregnancy diagnosis in their herds.

Animals↗
PubMed1982

Fiberoptic bronchopulmonary lavage for alveolar proteinosis in a patient with only one lung.

Bronchopulmonary lavage with a fiberoptic bronchoscope was performed on a patient with alveolar proteinosis and only one lung. Lavage was performed under general anesthesia with continuous monitoring of oxygen saturation. Sequential washing of subsegments of his right upper and middle lobes did not compromise gas exchange to the remaining lower lobe. The patient tolerated the procedure without difficulty and had rapid improvement in pulmonary function and exercise capability, persisting during two months of follow-up. The necessity for cardiopulmonary bypass to provide oxygenation was anticipated and new equipment was designed should it have been required.

Blood Gas Analysis↗
PubMed1982

Urgent myocardial revascularization for dissection of the left main coronary artery: a complication of coronary angiography.

Acute subintimal dissection of the left main coronary artery (LMCA) is a rare but devastating complication of selective coronary angiography. The compromise of the coronary blood flow to an extensive area of myocardium becomes clinically evident in most patients shortly after the injury. Three patients who had catheter-induced LMCA dissection were successfully managed with aorta-coronary artery bypass. We recommend that urgent myocardial revascularization using standard techniques should be carried out in all patients following this injury.

Aged↗
PubMed1980

Lobar pulmonary hemorrhage. An unusual complication of Swan-Ganz catheterization.

Massive lobar pulmonary hemorrhage related to Swan-Ganz catheterization represents a catastrophic complication that, to our knowledge, has received little attention in the literature. Our experience with two recent cases emphasizes the life-threatening nature of such bleeding as well as the potential for patient salvage after urgent resectional therapy. A spectrum of pulmonary vascular injuries is incurred after the insertion of a balloon-tipped catheter, and there are therapeutic approaches for each. The anticoagulation associated with cardiac surgical procedures prompts us to suggest that the technique of insertion and the use of the Swan-Ganz catheter in these patients be modified to avoid this complication.

Aged↗
PubMed1980

Symptomatic methemoglobinemia with a commonly used topical anesthetic, cetacaine.

Severe cyanosis resulting from acquired methemoglobinemia after application of a topical anesthetic, Cetacaine spray, occurred in a 37-year-old patient following bronchoscopy for postoperative atelectasis. Response to methylene blue therapy was dramatic and complete. Attention is drawn to a dangerous adverse effect of this commonly used topical anesthetic agent.

4-Aminobenzoic Acid↗
PubMed1980

Pulmonary cavitation and massive hemoptysis caused by an unsuspected intraparenchymal foreign body.

A patient presented with massive hemoptysis, and a chest roentgenogram revealed a right lower lobe cavity which contained a movable mass of soft tissue density. He had sustained a gunshot wound to the chest seven years earlier. Thoracotomy was performed for uncontrollable hemoptysis, and parenchymal cavitation was found which contained a plastic foreign body. We retrieved a film following the original injury which revealed a mass density that proved to be a plastic wadding capsule from a shotgun shell. This type of complication from intraparenchymal foreign bodies is discussed and the unusual roentgenographic presentation of this patient is considered.

Adult↗
PubMed1978

Posterior ventricular aneurysm, severe mitral regurgitation, and rupture of the left ventricle after acute myocardial infarction: six-year survival after surgical correction.

Posterior ventricular aneurysm and severe mitral regurgitation due to acute myocardial infarction are rarely recognized during life. This report describes the successful surgical treatment of a patient with this combination of lesions who at operation was found to have rupture of the left ventricle as well. Aneurysmectomy, mitral valve replacement, and coronary artery bypass were performed with a gratifying late result. Aggressive investigation of patients with hemodynamic deterioration after posterior myocardial infarction may identify surgically correctable mechanical complications.

Adult↗
PubMed1978

Left ventricular aneurysm resection: indications and long-term follow-up.

Forty-four patients had resection of a chronic postinfarction left ventricular aneurysm. Operative indications were heart failure, angina, and ventricular arrhythmias. Twenty-six patients (59%) had coronary grafting in addition to aneurysmectomy. The operative mortality rate was 4.5% (2/44), and late mortality (mean follow-up, 31 months) was 17.9% (7/39). Preoperatively all patients were in New York Heart Association Functional Class III or IV; 91% were Class I or II postoperatively. Coronary bypass grafting did not increase the operative mortality rate, and long-term survival was similar between those receiving coronary grafts and those not receiving grafts. Postoperative ventriculograms were evaluated in 10 patients by means of a system of internal grids. Amount of regional myocardial contraction correlated well with the patient's postoperative functional capacity. It is concluded that ventricular aneurysmectomy in combination with coronary bypass grafting is safe and effective, resulting in marked improvement in the patients' functional capacity and longevity.

Adult↗
PubMed1978

Considerations in the management of open-heart surgery in uremic patients.

Life-threatening complications involving the central circulation commonly occur in uremic patients. The growing number of individuals maintained on long-term hemodialysis along with repeated demonstrations of their ability to tolerate major operative procedures are responsible for increasing surgical experience in this group. Despite a high incidence of subacute bacterial endocarditis (SBE) and accelerated coronary atherosclerosis, exposure of such patients to open-heart operations has been limited. Our management of two patients who recently underwent valvular replacement is outlined and a review of the literature revealed that, during the past decade, 20 uremic patients have undergone a variety of cardiac procedures. The catastrophic results of medical therapy in such individuals with SBE are emphasized and early surgical intervention is recommended.

Adolescent↗