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D M Scheider

Publications and source records attributed to D M Scheider.

5 recordsLinked to original sources

A prospective study of the repeated use of sterilized papillotomes and retrieval baskets for ERCP: quality and cost analysis.

BACKGROUND: The impact on instrument quality and cost of the practice of reusing ERCP accessories has not been fully addressed. METHODS: Twenty-five new papillotomes and 15 new retrieval baskets were labeled and evaluated over time by staff blinded to the number of prior uses. Instruments were scored as to their function for the designated task. The cost of this practice was calculated from the purchase price of accessories and the costs of cleaning, sterilization, and disposal, and then compared with the estimated cost of a practice of one-time use of similar instruments. RESULTS: Twenty-five papillotomes were used 246 times (median 8; mean 9.8). Fifteen retrieval baskets were used 193 times (median 13; mean 12.9). The median survival of both papillotomes and baskets before being considered inadequate (score < 6 out of 10) was 9 uses. There were no complications attributable to using reused equipment. The projected yearly cost savings of using reusable versus disposable instruments was $94,095 for papillotomes and $61,809 for baskets, a 475% and 322% cost reduction, respectively. CONCLUSION: The papillotomes and baskets in this study could be reused reliably and safely multiple times, with considerable cost savings compared with the practice of using disposable instruments.

Cholangiopancreatography, Endoscopic Retrograde

Photodynamic therapy for the treatment of tumor ingrowth in expandable esophageal stents.

BACKGROUND AND STUDY AIMS: Tumor ingrowth through self-expanding metal stents presents a difficult problem for management. The techniques for treating tumor ingrowth have not yet been well described, and the optimal endoscopic approach is not clear. We have recently used photodynamic therapy (PDT) to treat tumor ingrowth through uncovered nitinol mesh stents. PATIENTS AND METHODS: Four patients (mean age 73) with obstructive adenocarcinomas of the distal esophagus had received self-expanding stents for palliation of their dysphagia. After stent placement, tumor ingrowth had caused progressive dysphagia in all of the patients; the dysphagia was graded on a scale from 0 (normal) to 4 (inability to swallow liquids). All of the patients received PDT treatment. RESULTS: After PDT, excellent palliation of the dysphagia was seen in all of the patients, with a mean improvement in the dysphagia score of 2.25 and a mean dysphagia-free interval of 92 days. There were no major complications. CONCLUSION: The use of PDT to treat tumor ingrowth through self-expanding metal esophageal stents is effective and safe.

Adenocarcinoma

Ascites and secondary bacterial peritonitis associated with small bowel obstruction.

Wide albumin gradient (transudative) ascites is usually due to liver disease but may also result from many other disorders, including heart failure, hepatic infiltration by tumor, hepatic vein thrombosis, and veno-occlusive disease. It has not been linked with small bowel obstruction. Narrow albumin gradient (exudative) ascites, usually due to peritoneal carcinoma or inflammation, has been noted in cases of necrotic or perforated bowel, but simple small bowel obstruction has not previously been appreciated as a possible cause for ascites. We report a patient who developed wide albumin gradient ascites and secondary bacterial peritonitis in association with small bowel obstruction. The small bowel obstruction, ascites, and peritonitis resolved with lysis of a single abdominal adhesion.

Aged

Hepatic dysfunction after repeated isoflurane administration.

Isoflurane, a halogenated volatile anesthetic, has not been associated with a distinct hepatic injury syndrome, as has halothane. Previous cases of suspected isoflurane-induced hepatotoxicity have been reported but questioned. We report the case of a patient without previous liver disease who developed repeated episodes of hepatitis after repeated exposures to isoflurane. Although no biopsy study was conducted, the temporal relationships illustrated in this case strengthen the argument for isoflurane-induced hepatotoxicity.

Chemical and Drug Induced Liver Injury