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Biomedical subjects

S L Gans

Publications and source records attributed to S L Gans.

At least 19 recordsLinked to original sources
PubMed1988

The use of lasers in pediatric surgery.

This report is a condensation of the Fred McLoed Lecture given at the Annual Meeting of the Canadian Association of Paediatric Surgeons. It briefly cites the basic fundamentals of lasers, the characteristics of those used in surgery, and their delivery systems. The advantages of laser surgery include the sealing of blood vessels, lymphatics, and nerve ends when used for cutting. This results in a relatively dry field of surgery and less postoperative pain. There is reduced opportunity for contaminants in a clean wound, and no spreading of infection in a contaminated one. Surgery can be carried out in confined areas in a drier field of view, and can be brought to small areas by fiberoptic cables. Highly precise and localized microsurgery is possible. The use of lasers is indicated in operations where significant blood loss is expected and in patients with bleeding tendencies. It is useful in surgery for malignant disease and through highly infected tissue. Other general indications are discussed. Specific surgical procedures where lasers have been useful include treatment of hemangiomas, surgery of the tongue, repair of pectus excavatum, partial splenectomy and splenic repair, hepatic lobectomy and hepatic repair, and resection of adrenal tumors. Lasers have also been useful in partial nephrectomy, excision biopsy, revision or closure of ileostomy or colostomy, endorectal mucosectomy, posterior sagittal anorectoplasty, treatment of condyloma acuminata, burn wound debridement, and infected tissue debridement. Anticipated uses include vascular, biliary tract, and intestinal repair and anastomoses, and photodynamic therapy (PDT) of neoplasms.

Child↗
PubMed1982

Hemangiomatosis of the pleura with hemorrhage and disseminated intravascular coagulation.

Hemangiomatosis involving the pleura is a rare cause of bloody pleural effusion in the neonate. When congestive heart failure and consumption coagulopathy are associated, the prognosis is particularly grave. Corticosteroids and radiation therapy have been reported to shrink hemangiomas. We present such a case in a 2.5-mo-old whose condition did not appear to respond to prednisone or radiation therapy but resolved quickly when cyclophosphamide was given. In this case cyclophosphamide appeared to be life saving.

Cyclophosphamide↗
PubMed1981

Successful surgical repair of iatrogenic lung perforation in a neonate.

Iatrogenic lung perforation during closed tube thoracostomy for pneumothorax in neonates apparently occurs with disturbing frequency. This potentially lethal complication may be minimized by strict adherence to proper technique. In addition, an added margin of safety may be established by allowing some air to remain in the pleural space prior to placement of a chest tube. If iatrogenic perforation of the lung occurs despite appropriate precautions, surgical intervention may be indicated.

Drainage↗
PubMed1980

The antepartum diagnosis of conjoined twins.

This is a case report in which the diagnosis of conjoined twins was made in a woman by ultrasonography in her eigth month of pregnancy. With this diagnosis, the mother-to-be was transported to a hospital with sophisticated obstetrical, neonatal, and pediatric surgical facilities. The twins were delivered by elective caesarian section and were seen to have anomalies requiring immediate surgery. Following stabilization and basic investigations, surgery was performed on the infants at 3 hr of age. This resulted in a condition that permitted a thorough postoperative work-up and elective separation several months later.

Adult↗
PubMed1977

Diagnosis and surgical management of "H-type" tracheoesophageal fistula in infants and children.

By means of the new rod lens telescopic endoscopes, the diagnosis of H- or N-type tracheoesophageal fistula in infants and children can now be made definitively without the difficulties and complications previously described, and the numerous methods recommended in the literature, all of which have their inconsistensies, failures, errors, and dangers. Using these advanced endoscopes the fistula is demonstrated by bronchoscopy, a small Fogarty catheter is threaded through the opening in the trachea under direct view of the telescope and passed through the fistula into the esophagus. The balloon is inflated and the bronchoscope removed, leaving the catheter in place. A proper incision is then made in the neck or chest, depending on the location of the lesion, and the fistulous tract is quickly located by palpation of the balloon and catheter. Then with minimal and accurate dissection, correction is carried out.

Bronchoscopes↗
PubMed1977

A new look at pediatric endoscopy.

As a result of recent developments in instrumentation, most endoscopic procedures can now be carried out safely in infants and children in less time and with less trauma than previously. In pediatric applications, laparoscopy is possible for the first time, bronchoscopy and esophagoscopy are greatly improved, and urethrocystoscopy can be done with accuracy and dispatch. Small flexible endoscopes have been evaluated for gastroduodenoscopy and colonoscopy.

Bronchoscopy↗