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Biomedical subjects

R A Pollock

Publications and source records attributed to R A Pollock.

47 records · Page 3Linked to original sources
PubMed1984

More experience with the "reverse" latissimus dorsi musculocutaneous flap: precise location of blood supply.

Our work demonstrates that the "reverse" latissimus dorsi musculocutaneous flap has a predictable and consistent blood supply. A major portion of the muscle can be nourished by the dorsal perforating branches of the ninth, tenth, and eleventh intercostal vessels. The skin island based on the "reverse" latissimus dorsi muscle can be as large as 8 X 20 cm. This is confirmed by anatomic dissections and clinical cases. Knowledge of the blood supply facilitates elevation of the flap and extends its utility.

Adult↗
PubMed1984

Inferior turbinate surgery: an adjunct to successful treatment of nasal obstruction in 408 patients.

Septal deviation is often associated with hypertrophy of the contralateral inferior turbinate. Failure to reduce the size of the turbinate at the time of septal reconstruction may result in persistent nasal obstruction. The authors present their experience with 408 patients who underwent one of four turbinate procedures over a 6-year period. Most patients underwent unilateral turbinate surgery, although bilateral procedures were undertaken in 7 percent of patients. A graduated surgical approach was taken that varied according to the amount of turbinate enlargement and the degree to which mucosa and bone were involved. Full-thickness excision of the anterior third to half of the inferior turbinate (turbinectomy) became a favored procedure. Relief of nasal obstruction was obtained in greater than 90 percent of patients. Healing was satisfactory regardless of the method, and complications, including hemorrhage and infection, were few. Long-term follow-up revealed no untoward sequelae, and no patient developed atrophic rhinitis. The authors conclude that turbinate surgery, particularly when unilateral, in the carefully selected patient with nasal obstruction is a useful adjunct to septal surgery.

Humans↗
PubMed1983

Surgical approaches to the nasal dermoid cyst.

The dermoid cyst usually presents as a mass of the nasal dorsum with or without evidence of a fistulous tract, lined by normal skin, including hair. Approximately 50% of the time the dermoid cyst is deeply located and septal distortion, bone erosion, or intracranial connection may on occasion be discovered. The variations in presentation of these cysts have provoked a variety of recommendations regarding surgical excision. Historical approaches are briefly reviewed. The author favors one of three surgical approaches utilizing incisions that offer good exposure and cosmetically favorable scars. These are outlined in detail. Careful preoperative planning is encouraged, as is the intraoperative use of a lacrimal probe, blunt dissection, and the operating microscope.

Adult↗
PubMed1983

Malignant hyperthermia in the head and neck surgery patient: an update and review.

Malignant hyperthermia, a disorder often initiated by exposure to a variety of anesthetic agents, continues to be of major importance to the head and neck surgeon because: 1. approximately 40% of all reported reactions have occurred during anesthesia for head and neck surgery; 2. the possibility of mortality still exists despite the use of new pharmacologic agents, such as dantrolene; and, 3. subtle variations in the intraoperative and postoperative presentation of malignant hyperthermia are being increasingly recognized and treated. The authors briefly tabulate the 280 cases--which have occurred worldwide during otolaryngologic, dental, facial plastic, ophthalmologic and neurosurgical procedures--that are registered with the Department of Anaesthesia, University of Toronto, Canada. A case report depicting a less-than-typical reaction is presented. The authors emphasize that early recognition of the clinical features of an ongoing reaction, whether mild or severe, is by far the most important factor in reducing morbidity and mortality of patients who suffer hyperthermic crises while undergoing head and neck surgery.

Anesthesia↗
PubMedDate not supplied

Esophageal and hypopharyngeal injuries in patients with cervical spine trauma.

The authors review their recent experience with four patients referred to the Shepherd Spinal Center, Atlanta, with cervical spine fracture dislocation and quadriplegia. The patients were subsequently found to have tears of the hypopharynx or the esophagus as a complication of their injury. Unexplained fever, swelling of the neck, dysphagia or leukocytosis in the patient with acute cervical spine injury suggest, the authors urge, the possibility of esophageal or hypopharyngeal perforation. The authors review the kinematics and pathophysiology of cervical fractures and provide clues to early detection and management of perforation of the hypopharynx or esophagus, including the use of radiographic study and endoscopy.

Adult↗