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Biomedical subjects

Joseph Nidiry

Publications and source records attributed to Joseph Nidiry.

2 recordsLinked to original sources

Current concepts: organophosphate toxicity.

Recent cases of nosocomial poisoning associated with the treatment of patients contaminated with organophosphate (OP) insecticides and the increasing potential for exposure to these chemicals elevate into sharper focus the continuing clinical and public health problem of pesticide poisoning. Despite a number of reports on the multiple aspects of OPs insecticides and their health effects, the general public and health services professionals, broadly defined, remain confused and misinformed about this class of chemicals. In this article we examine sources of exposure and current knowledge of health effects of OPs. The protection of health care workers is also discussed.

Humans↗

Is repeat endoscopy necessary after percutaneous endoscopic gastrostomy?

Percutaneous endoscopic gastrostomy (PEG), a safe and effective procedure, is an alternative to open gastrostomy. There are two techniques of placing PEG tubes. One technique consists of a pull-string Ponsky-Gauderer type gastrostomy and the other a push-over-wire Sachs-Vine type gastrostomy. After the gastrostomy tube is positioned, a repeat endoscopy is performed to determine optimal placement of the PEG tube. The purpose of this study was to determine the necessity of a repeat endoscopy to determine the optimal positioning of the PEG tube. Charts of 132 patients who underwent a PEG procedure between July 1, 1994 and September 30, 1996 were reviewed. Specifically, we assessed whether the endoscopist changed the position of the bumper during repeat endoscopy after PEG placement. PEG was performed successfully in 125 of 132 adult patients. Of 125 patients, the endoscope was reintroduced after PEG in 110 patients. A minor adjustment was defined as repositioning of the bumper by < or = 1.0 cm and a major adjustment as > 1.0 cm. The endoscopist made no adjustment in initial placement of the gastrostomy tube bumpers in 102 of 110 patients (93%). A minor adjustment was made in 5 patients (4%), and a major adjustment was made in 3 patients (3%). Therefore, in 102 of 110 patients (93%), initial placement of the gastrostomy tube bumpers was felt to be adequate, and repeat endoscopy was not necessary. Thus, repeat endoscopy is not routinely required to assess the proper positioning of the internal bumper. Repeat endoscopy should be at the discretion of the endoscopist if there is suspicion of improper positioning of the bumper along the gastric mucosa.

Aged↗