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Biomedical subjects

G R Zuckerman

Publications and source records attributed to G R Zuckerman.

45 records · Page 3Linked to original sources

Upper gastrointestinal disease in chronic renal failure. A prospective evaluation.

A prospective study was undertaken to determine the incidence of upper gastrointestinal disease in 85 chronic renal failure (CRF) patients on hemodialysis. Upper gastrointestinal x-rays were obtained for 83 patients, and enlarged gastric and duodenal folds were seen in 12% (10/83) and 42% (35/83) of the cases, respectively. Panendoscopy performed on 60 persons revealed gastritis in 22% (13/60), nodular duodenitis in 60% (35/60), and esophagitis in 13% (8/60). No peptic ulcers were identified either radiologically or endoscopically. Pathologic examination of mucosal biopsy specimens demonstrated gastritis in 46% (21/46) and duodenitis in 43% (22/51) of patients. A highly significant correlation was found between endoscopic and radiologic duodenitis (P less than .0001) and also between endoscopic and pathologic duodenitis. We have demonstrated a high incidence of mucosal inflammation but not ulcer disease in CRF patients. These lesions may predispose these individuals to gastrointestinal bleeding following renal transplantation.

Adolescent↗

Antibiotic prophylaxis in patients with infectious risk factors undergoing gastrointestinal endoscopic procedures.

UNLABELLED: Consecutive patients undergoing gastrointestinal endoscopic procedures were prospectively evaluated for the presence of risk factors for the development of infectious complications that indicated a need for prophylactic antibiotics. Criteria for the evaluation of risk factors were based on (a) former American Heart Association guidelines, (b) current American Heart Association guidelines, and (c) American Society for Gastrointestinal Endoscopy guidelines. Four hundred eighty-six patients underwent 507 procedures. Risk factors for the development of endocarditis or other infectious complications were found in 74 (15%) of all patients during the study period. Cardiac conditions in 51 patients were the most frequently encountered risk factor (69% of risk factors, 10% of all patients), with mitral valve prolapse in 25 patients accounting for 49% of patients with cardiac risk factors and 5% of all patients. Of the patients with mitral valve prolapse, 7 (28%, 1.4% of all study patients) had associated valvular regurgitation. None of the patients with mitral valve prolapse knew whether or not they had associated valvular regurgitation, and if they had had a previous echocardiogram, they were unaware of the results. Only 0.8% of patients had a prosthetic heart valve. The most common non-cardiac risk factor was the presence of a prosthetic joint (9 of 486, 1.8%). Of the 486 patients, 14 required antibiotic prophylaxis according to the above-mentioned guidelines. Six of the 14 patients were given either a non-recommended antibiotic or the wrong dose of a recommended antibiotic. CONCLUSIONS: (1) A decision regarding whether to administer antibiotic prophylaxis had to be made in 15% of patients undergoing endoscopy.(ABSTRACT TRUNCATED AT 250 WORDS)

Anti-Bacterial Agents↗

The cracked tooth.

Fractured molars and premolars are very common. Fractures usually result from cracks that develop and slowly extend until the tooth separates into buccal and lingual fragments. Sometimes, as these cracks expand, the patient exhibits symptoms of what is commonly referred to as "cracked tooth syndrome" (CTS). When CTS occurs, an opportunity exists to diagnose and treat these patients, to relieve their discomfort and prevent sequelae that would require more extensive treatment.

Cracked Tooth Syndrome↗