Biomedical subjects

D E Litwin

Publications and source records attributed to D E Litwin.

5 recordsLinked to original sources

PubMed1992

Technetium 99m pentavalent dimercaptosuccinic acid and thallium 201 in detecting recurrent medullary carcinoma of the thyroid.

To compare the effectiveness of thallium chloride 201 and technetium 99m pentavalent dimercaptosuccinic acid in evaluating medullary carcinoma of the thyroid (MCT), eight patients with a history of MCT underwent imaging with both radiopharmaceuticals. Thallium 201 consistently gave superior images, as well as providing one less false-negative scan. Positive scans were obtained in patients with elevation of basal calcitonin levels to more than 1,000 ng/L. All of the patients with positive scans had clinical evidence of local recurrence. Improved imaging with thallium 201 was obtained by early scanning.

Calcitonin↗

PubMed1992

History of laparoscopic surgery.

Since the beginning of the 20th century physicians have promoted laparoscopy as a valuable adjunct to the diagnosis of diseases of the abdominal cavity. Laparoscopy, however, failed to become popular among abdominal surgeons until the advent of laparoscopic cholecystectomy. This single new operative approach to the treatment of gallbladder stones gave rise to such enthusiasm among general surgeons that other innovative laparoscopic procedures are now being promoted in ever-increasing numbers. The general surgeon has again become the leader in the introduction of a new surgical approach. This new technique must be developed with great care, and there must be rigorous criteria for its use, critical analysis of the technique and honest reporting of results.

Cholecystectomy↗

PubMed1992

Laparoscopic surgery--basic armamentarium.

The introduction of laparoscopic techniques into standard intracavitary surgery has received widespread acceptance in North American surgical practice in a very short time. To complete these procedures successfully a basic armamentarium is required by surgeons. The equipment should provide safe conduct of the procedure and maximum flexibility in the types of surgical procedures to be undertaken. The basic laparoscopic equipment needed to facilitate minimal-access-site surgery is reviewed, from the operating table and lighting in the operating room through optics, cameras and television monitors to the instruments and agents needed for the surgical techniques and for securing hemostasis.

Hemostasis, Surgical↗

PubMed1992

Laparoscopic cholecystectomy: strategy and concerns.

After briefly describing the first laparoscopic cholecystectomy performed by Philippe Mouret, the authors review some of the differences in strategy, management and concerns between conventional and laparoscopic cholecystectomy. They address the problems relating to the required skills of triangulation and camera handling, the presence of common-duct stones and concomitant disease, the issues of drainage, hemostasis, access in difficult cases, iatrogenic trauma to the bile ducts and pertinent differences in cardiorespiratory function.

Cholangiography↗

PubMed1992

Laparoscopic cholecystectomy: trans-Canada experience with 2201 cases.

The authors carried out a prospective review of the initial and consecutive experience with laparoscopic cholecystectomy of 58 surgeons from 31 teaching and nonteaching institutions throughout Canada. The perioperative morbidity of 2201 cases is described, with special attention to iatrogenic complications. The data suggest that complications, including bile-duct injury, are not frequent. Pneumonia and wound infection rates appear lower than after open surgery. There were no deaths. Laparoscopic cholecystectomy is replacing open cholecystectomy for the management of symptomatic cholelithiasis.

Adolescent↗