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Biomedical subjects

S F Swaim

Publications and source records attributed to S F Swaim.

At least 37 records · Page 2Linked to original sources
PubMed1987

Effects of nonadherent dressing materials on the healing of open wounds in dogs.

Four types of nonadherent dressing materials (rayon/polyethylene dressing, cotton nonadherent film dressings, fine mesh gauze petrolatum dressings, and commercial petrolatum emulsion dressings) were applied on small full-thickness skin defects on the backs of 12 Beagles. At 7 days, the wounds treated with the petrolatum-containing dressings had more contraction than wounds dressed with cotton nonadherent film dressings and wounds dressed with rayon/polyethylene dressings. However, by days 14 and 21, there was little difference in the amount of contraction of any of the wounds. At 7, 14, and 21 days, the wounds dressed with petrolatum-containing dressings had less epithelialization than wounds dressed with cotton nonadherent film dressings and rayon/polyethylene dressings. The uniform open mesh of the commercial petrolatum emulsion dressings allowed the best absorption of exudate and bacteria into the secondary overlying bandage.

Animals↗
PubMed1987

Basic principles for reconstruction of problem skin defects: trunk, head, and neck.

When dealing with skin defects, the veterinary surgeon should always use the simplest, least time consuming, least expensive techniques first and use the more involved techniques only as they are necessary. For closing skin defects the 3 techniques that can be used are: shifting local tissue; flaps, or grafts. Shifting local tissue to close skin defects is the simplest means of reconstruction. Because of the abundance of loose elastic skin on dogs and cats, many defects can be closed using either this technique or local skin flaps.

Animals↗
PubMed1987

Basic principles for reconstruction of problem skin defects on the limbs and feet.

Skin defects on the limbs of animals present a problem from the standpoint that there is not an abundance of skin on the limbs to reconstruct with as there is on the trunk of an animal. Shifting local tissues can be used to correct small limb defects, and skin flaps from the upper limbs or body can be used to correct upper limb defects. Defects on the lower limbs and feet may require distant flaps or free grafts for reconstruction. Foot pads require special attention when being sutured. When foot pads have large defects or are missing there are techniques for replacement: however, there are certain principles that must be abided by when replacing foot pads.

Animals↗
PubMed1987

New concepts in wound management.

Veterinarians encounter all types of wounds--from the simple clean laceration in an area of the body where it is easily repaired, to the massive infected wound in an area of the body where repair is quite difficult and involved. From the beginning of time, man has had the instinct to pour things in wounds to kill microorganisms and enhance healing, and..... "wounds are still lathered, bathed, and sprayed with various notions, potions, and lotions".

Animals↗
PubMed1986

Evaluation of plasma and buffy coat ascorbic acid concentrations in dogs before and after a 24-hour fast.

Samples of blood were taken from 15 female and 15 male research laboratory Beagles before and after they were fasted for 24 hours. The mean buffy coat ascorbic acid concentration was significantly higher in dogs after they were fasted than that before they were fasted. In contrast, the mean plasma ascorbic acid concentration was significantly lower in dogs after they were fasted than that before they were fasted. The mean buffy coat ascorbic acid concentrations in blood samples of both fasted and nonfasted female Beagles was significantly greater than those of male Beagles, whereas the mean plasma concentrations of both fasted and nonfasted female Beagles was significantly lower than those of male Beagles. It was observed that whenever there was a decrease in plasma ascorbic acid concentration, there was an increase in buffy coat ascorbic acid concentration, regardless of fasting stress or sex difference.

Animals↗
PubMed1986

A newly designed tensiometer.

A newly designed tensiometer is described in detail. The tensiometer was used to test the tensile strengths of skin wounds on the trunks of 12 female laboratory Beagles at 5, 9, and 14 days after operation. The tensile strengths increased significantly from day 5 to day 14. The newly designed tensiometer could be used to obtain accurate in vivo measurements of the tensile strengths of skin wounds.

Animals↗
PubMed1984

Surgical management of cancer.

In cancer surgery, operating time, tissue trauma and other stress should be minimized because circulating dormant tumor cells may be reactivated by stress, including that of anesthesia. Rectal polyps and Sertoli-cell tumors should be removed as soon after diagnosis as possible. Neutering is recommended to reduce the risk of certain tumors. Biopsies should contain tissue from the center and periphery of the lesion. Laparotomy or thoracotomy may be necessary to visually inspect internal tumors. Debulking or partial resection of large tumors may render them more susceptible to chemotherapy or irradiation. Palliative surgery may be desirable to comfortably prolong an animal's life. In curative surgery, enlarged local lymph nodes should also be resected, hemorrhage controlled and lavage used to prevent tumor-cell seeding. Complete resection should take precedence over reconstructing the defect created by resection.

Animals↗
PubMed1984

Effects of gentamicin solution and cream on the healing of open wounds.

When 0.1% gentamicin solution was applied to full-thickness skin wounds of dogs, the wounds became smaller by contraction during the first 7 days and continued to contract over the next 14 days. Wounds treated with 0.1% gentamicin cream enlarged during the first 7 days, followed by wound contraction over the next 14 days. The wounds treated with gentamicin solution also had more epithelialization at 7 days than did the cream-treated wounds; however, epithelialization of the 2 types of wounds was similar at 14 and at 21 days. Gentamicin solution and cream were effective in controlling bacterial growth on wounds when compared with the bacterial growth on the control wounds (not treated with antibiotics).

Administration, Topical↗
PubMed1982

Patterns of occurrence of disk disease among registered dachshunds.

A pedigree study of 536 registered Dachshunds with intervertebral disk disease revealed patterns of occurrence consistent with a genetic model involving the cumulative effect of several genes, with no dominance or sex linkage, subject to environmental modification. In 2 families studied, there were 52 cases of IDD among 84 Dachshunds in 15 litters, a prevalence of 62%, as compared with the estimated breed prevalence of 19%. It was concluded that Dachshunds from high-prevalence lineages should be considered to be genetically high risk and that breeders should avoid using them in breeding.

Age Factors↗
PubMed1977

Dorsal laminectomy techniques in the dog.

The effects of various lengths of complete dorsal laminectomy were compared with the effects of Funkquist method B laminectomy on the spinal cord of dogs. Complete dorsal laminectomies were done on L1 (group 1), L1 and L2 (group 2), and L1, L2, and L3 (group 3). Dogs of group 4 had Funkquist method B laminectomies on L1 and L2. Complete dorsal laminectomy on 1 vertebra and Funkquist method B laminectomy on 2 vertebrae did not result in any clinically untoward signs. In conjuction with these results, there was no dorsoventral flattening of the spinal cords and minimal microscopic damage within the spinal cords. If 2 or 3 vertebrae had a complete laminectomy, tonic spasticity of the pelvic limbs developed after surgery. Dorsoventral flattening of the spinal cord and moderate to severe microscopic damage were seen in the spinal cords of these dogs.

Animals↗
PubMed1977

Clinical and histologic evaluation of bilateral hemilaminectomy and deep dorsal laminectomy for extensive spinal cord decompression in the dog.

Various forms of 2 techniques for maximal decompression of the thoracolumbar spinal cord in dogs were evaluated clinically and histologically. Based on the results of this study, the veterinary surgeon could consider the following spinal decompression procedures: (1) deep dorsal laminectomy over 1 vertebra; (2) bilateral hemilaminectomy on 1 vertebra, with removal of articular processes and dorsal spinal plating; and (3) bilateral hemilaminectomy on 2 vertebrae, with the articular processes left intact. Of these 3, the 1st and 3rd techniques would probably be considered for use more often than the 2nd. Deep dorsal laminectomy over 2 vertebrae should be considered with reservation. Bilateral hemilaminectomy on 2 vertebrae, with rigid dorsal spinal plating and without articular processes at the ends of the defect, should not be used. Before using one of the techniques, the surgeon should consider the indications, advantages, and disadvantages for that technique.

Animals↗
PubMed1975

Evaluation of four techniques of cervical spinal fixation in dogs.

Four surgical techniques for immobilizing unstable cervical vertebrae were evaluated. These techniques included: (1) placing screws bilaterally through the articular processes, (2) placing wires bilaterally through the articular processes, (3) placing a bone screw through vertebral bodies, and (4) placing a bone plate on the ventral surface of adjacent vertebral bodies. Each technique was found to have certain advantages and disadvantages.

Animals↗