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Biomedical subjects

C S Hedlund

Publications and source records attributed to C S Hedlund.

9 recordsLinked to original sources
PubMed1992

Clinical evaluation of axial pattern skin flaps in dogs and cats: 19 cases (1981-1990).

Nineteen axial pattern skin flaps were used in 16 dogs and cats to provide skin for repair of extensive cutaneous defects. Retrospective evaluation of medical records was used to determine percentage flap survival, postoperative complications, and long-term outcome of axial pattern skin flaps. The most common indication for use of axial pattern flaps was to augment wound closure following tumor resection (n = 7). Other indications included trauma (n = 5), chronic nonhealing wounds (n = 4), urine-induced cellulitis (n = 1), idiopathic dermal necrosis (n = 1), and chronic lymphoplasmocytic dermatitis (n = 1). Mean flap survival (+/- SD) was 96% (+/- 8). Postoperative complications included wound drainage (n = 15), partial dehiscence of the sutured flap (n = 7), distal flap necrosis (n = 6), infection (n = 3), edema (n = 3), and seroma formation (n = 2). After a median follow-up time of 5 months, evaluation of animals indicated that surgery provided successful wound reconstruction with good cosmetic results. Reconstruction of large cutaneous defects is facilitated by axial pattern flap application regardless of cause of wound. Postoperative complications are common but amenable to standard wound management techniques such as drain placement and surgical debridement of devitalized distal flap skin.

Animals↗
PubMed1992

Aspirated dental calculus in a dog.

Aspiration of a dental calculus, with lodgement of the calculus in a mainstem bronchus, was identified in a dog after dental prophylaxis. The calculus was located by use of radiography and bronchoscopy, and was removed via thoracotomy. Aspiration is a possible complication of dental prophylaxis. Endotracheal intubation with a properly inflated cuff, and thoroughly rinsing the oral cavity after prophylaxis, may avoid this and similar complications.

Animals↗
PubMed1991

Resection of a cervical tracheal bronchus in a foal.

A 3-day-old Thoroughbred foal developed a large, air-distended, midcervical swelling that was diagnosed as a congenital tracheal bronchus with associated ectopic lung tissue. Clinical signs consisted of a compressible air-filled sac that enveloped the trachea. The nature and extent of the defect were evaluated endoscopically and radiographically. Surgical resection of the bronchus and associated air-filled sac resulted in a functionally and cosmetically acceptable outcome.

Animals↗
PubMed1991

Tracheostomy.

Tracheostomies are performed to bypass life-threatening obstructions of the upper airway or to facilitate surgical procedures in the head and neck region. Neither tube tracheostomy nor permanent tracheostomy is a cure for any particular disease; however, both can be important for patients' supportive or palliative care. Perioperative problems are anticipated with either tube tracheostomy or permanent tracheostomy. Obstruction of the tube or stoma is the most common and devastating problem. Careful and diligent management of tracheostomy patients can circumvent many problems and allow the patient to breath with less difficulty.

Airway Obstruction↗
PubMed1991

Tracheal resection and reconstruction.

Tracheal resection and reconstruction may be required in patients with tracheal obstruction due to foreign bodies, trauma, parasitic granulomas, or tracheal tumors. Primary end-to-end anastomosis is the best means of reconstruction after the diseased tissue is resected. If anastomosis can be accomplished without excessive tension, few complications occur. However, if there is tension at the anastomotic site, the incision may separate, causing scar tissue to form and stenosis to occur. Many techniques may be used to prevent anastomotic stenosis, including tracheal mobilization, tension-relieving sutures, and head-neck immobilization. Grafts or prosthesis may be required when primary end-to-end anastomosis is impossible. More frequent complications are associated with the use of grafts and prostheses than with end-to-end anastomosis. These most commonly include stenosis, prosthesis migration, and erosion of adjacent blood vessels.

Airway Obstruction↗
PubMed1991

Tracheal collapse.

Tracheal collapse, one form of tracheal obstruction, is classically described as occurring in middle-aged or older toy breed dogs with a history of chronic "goose-honk" cough. Many dogs with tracheal collapse fit this description, but others are young and may wheeze, hack, or have no cough at all. Patients with a history and physical examination compatible with tracheal collapse are definitively diagnosed based on the findings of the following respiratory tract examinations: inspiratory/expiratory radiographs, fluoroscopy, culture and susceptibility, and a thorough endoscopic evaluation. Prosthetic ring tracheoplasty relieves many of the signs of tracheal obstruction but does not cure the disease. Early diagnosis and treatment are expected to give the dog a better quality life. Following prosthetic ring tracheoplasty, most dogs are more active, breathe easier, cough less, and require less medical treatment for respiratory disease.

Airway Obstruction↗
PubMed1988

Use of ultrasonography to diagnose Sertoli cell neoplasia and cryptorchidism in a dog.

Unilateral cryptorchidism and Sertoli cell tumor in the descended testis were provisionally diagnosed by use of ultrasonography in a 7-year-old Keeshond. The left testis was thought to have degenerated, but ultrasonography of the scrotum did not reveal evidence of testicular or epididymal tissue. The contralateral testis contained a hypoechoic mass believed to be a testicular tumor. Surgery and histopathologic findings confirmed the diagnosis. Ultrasonography of the scrotum and its contents should be considered for use in animals with suspected testicular neoplasia and/or degeneration.

Animals↗
PubMed1987

Surgical diseases of the trachea.

Tracheal obstructions and disruptions can be successfully managed by using various tracheal reconstructive techniques provided that the principles of tracheal surgery are followed. Airflow to the lungs may also be improved by performing a tracheostomy distal to the obstructive lesion or surgical site in the nasopharynx, larynx, or proximal trachea. All patients having tracheal surgery should be monitored carefully after surgery and followed up closely for 1 to 2 months to evaluate the patient's ability to ventilate adequately.

Animals↗