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Biomedical subjects

C L Nelson

Publications and source records attributed to C L Nelson.

197 records · Page 11Linked to original sources
PubMedDate not supplied

A comparison of body image perception in bulimics, restrainers, and normal women: an extension of previous findings.

Figure drawings ranging from very thin to heavy (Stunkard, Sorenson, & Schulsinger, 1980) were utilized to assess body-image perception in a group of women with bulimia nervosa, a group classified as restrained eaters, and a non-eating-disordered group of women. Participants were asked to choose the figures that most resembled their current figure, their ideal figure, and the figure they believed was most attractive to men. All women chose an ideal figure that was thinner than their current figure. However, the size of the discrepancy between their current and ideal figure was significantly larger for the bulimic group compared with the non-eating-disordered women. Furthermore, while the non-eating-disordered women rated their current figure similar to the size that they believed men would find most attractive, both the bulimic group and the restrained eaters rated their current figure larger than what they believed men would find most attractive. Finally, although it was hypothesized that the bulimic group would desire a figure even thinner than what they believed men would find most attractive, this hypothesis was not supported, as all three groups of women chose an ideal figure similar to the figure that they believed men would find most attractive. These present results are compared with previous investigations which utilized similar methodologies.

Adolescent↗
PubMedDate not supplied

The prevention of infection in total joint replacement surgery.

A fundamental prerequisite for the prevention of sepsis is adherence to well-known and accepted listerian principles of asepsis. This article reviews the roles of the high-risk patient, nutritional status, high-risk surgery, environmental factors, airborne contamination, preventive antibiotics, and antibiotic-acrylic composites in surgical sepsis.

Anti-Bacterial Agents↗
PubMedDate not supplied

False aneurysm of the left external iliac artery following total hip arthroplasty.

This is a report of a case of false aneurysm of the external iliac artery associated with pre-existing bone irradiation necrosis and postoperative infection of a total hip replacement arthroplasty in a 77-year-old woman. Vascular injury, when it does occur, requires prompt recognition, proper exposure and adequate treatment while techniques of primary suture should be used for closure of most defects, extensive ligation, resection and grafting procedures may be required in certain instances to control hemorrhage and maintain necessary circulation. The most important factors are an awareness of the likelihood of vascular pathology prior to surgery and the importance of angiographic examination in any patient in whom suspicion of such defects exists.

Aged↗
PubMedDate not supplied

MR and CT appearance of iliopsoas bursal distention secondary to diseased hips.

Occasionally hip joint disease may extend into surrounding structures, including the retroperitoneum, via the iliopsoas bursa. The enlargement of this bursa may present as an inguinal or pelvic mass that may affect other surrounding structures and can result in a multitude of clinical presentations. The two cases presented herein of iliopsoas bursa distention secondary to hip disease demonstrate the excellent specificity of CT and magnetic resonance in differentiating this clinical entity from other causes of groin masses.

Aged↗
PubMedDate not supplied

A dosage nomogram for sodium nitroprusside-induced hypotension under anesthesia.

Sodium nitroprusside (SNP) was used to produce deliberate hypotension in 30 selected patients, 9 to 78 years of age, for total hip replacement under halothane-N2O-O2 anesthesia. Hypotension was induced in the first 13 patients by infusing a 0.01% (100 mug/ml) solution of nitroprusside (NP) in 5% dextrose. Blood pressure was diminished to a level just producing a dry surgical field. Preliminary data demonstrated that the mean arterial blood pressure (MAP) achieving this condition was 65 torr (p less than 0.01) and that the minute dosage of NP (mug/min) required to consistently reduce MAP to 65 torr could not be predicted on the basis of body weight. However, the age/weight ratio (yr/kg) of each patient, plotted against the known minute dosage of NP given during anesthesia, produced a highly significant dose-response curve (p less than 0.001, r = -0.8226). The preliminary dose-response curve was examined in a double-blind study on an additional 17 patients. The curve derived from the prospective study did not differ from that of the preliminary study. In addition, the combined data from the retrospective and prospective studies (30 patients) gave a better statistical fit than did those from the preliminary study alone (p less than 0.001, r = -0.8939). The nomogram provides an additional margin of safety in the use of this potent, fast-acting drug. SNP has been found predictable and effective in reducing surgical blood loss in selected patients undergoing total hip replacement.

Adolescent↗
PubMedDate not supplied

Sodium nitroprusside-induced hypotension for supine total hip replacement.

Deliberate hypotension was produced during general anesthesia by the infusion of sodium nitroprusside in 13 patients undergoing total hip replacement. Hemodynamic data from these patients were compared with those obtained from 5 patients under normotensive anesthesia for the same procedure. During the hypotensive period, which averaged 1.5 hours, the cardiac index rose 20 percent compared with controls. No acidotic tendency was seen. Blood loss in the study group averaged 475 ml, compared with 1475 ml in controls. From these data, a dose-response curve was derived which may allow the accurate prediction of the minute dosage of sodium nitroprusside required to safely induce hypotension during anesthesia.

Adolescent↗
PubMedDate not supplied

Results of infected total hip replacement arthroplasty.

Postoperative infection following total hip replacement and the complications associated with the treatment regimens are unsolved problems. The long term results of resection arthroplasties for infection in the older, debilitated individuals are poor insofar as patients may be destined to be either on crutches or bedfast for the duration of their lives.

Aged↗