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Biomedical subjects

E R Reddy

Publications and source records attributed to E R Reddy.

15 recordsLinked to original sources
PubMed1992

Nonionic low-osmolality versus ionic high-osmolality contrast material for intravenous use in patients perceived to be at high risk: randomized trial.

To determine the cost-effectiveness of selective use of nonionic low-osmolality contrast material, the authors randomly assigned 955 patients to receive high-osmolality and 1,158 to receive low-osmolality intravenous contrast material. All patients had one or more of the following perceived risk factors for adverse reactions: prior reaction to contrast material, allergies, asthma, diabetes, cardiac or renal disease, anxiety, severe illness, and age greater than 50 years. The occurrence of any adverse event, need for therapy, or subjective symptoms was assessed in a double-blind fashion. An adverse reaction necessitating the attention of a physician occurred in 3.9% (n = 37) of patients in the high-osmolality and 0.9% (n = 10) of patients in the low-osmolality groups (P less than .000005). Therapy was administered to 1.4% (n = 13) and 0.5% (n = 6), respectively (P = .035). The difference was due to a reduction in urticaria and other mild anaphylactoid reactions. In a multivariate analysis, only prior reactions and allergy were independent risk factors. Selective use of intravenous nonionic contrast material is best justified in those with prior reactions, allergy, or asthma; at least 67% of reactions would be prevented.

Contrast Media↗
PubMed1989

Esophageal diverticula.

The clinical and radiological features in four patients with symptomatic mid-esophageal diverticula are reported here. The common clinical symptoms were retrosternal chest pain and dysphagia. Radiologically, three patients had acute obstructions revealed by barium studies and one patient had an esophago-bronchial fistula at the tip of the diverticulum.

Adult↗
PubMed1989

Gastric torsion.

We report a seven-week-old baby girl with a one-day history of vomiting and respiratory distress. The radiological findings were those of intrathoracic mesenteroaxial torsion of the stomach complicating a large hiatus hernia which included part of the small bowel and colon with partial colonic obstruction. This is a rare but important cause of alimentary tract obstruction and respiratory distress in infants. Prompt diagnosis and correction are vital.

Colonic Diseases↗
PubMed1985

Retained lead shot in the appendix.

Sixty-two patients with retained lead shot in their appendices, discovered during routine radiographic studies, were followed for periods ranging from two months to 13 years. The number of lead shot in the appendices varied from one to over 200. Twenty patients who had barium studies showed no evidence of luminal obstruction of their appendices. Eight patients who had appendectomies showed no evidence of appendicitis on tissue examination. None of the other patients developed any clinical evidence of appendicitis or lead poisoning. It is concluded that no causal relationship exists between retention of lead shot, their number, the duration of their presence in the appendix, and appendicitis.

Adult↗
PubMed1984

Changes in heart size and volume in certain endocrinal and nutritional deficiency diseases. A correlative study in twenty adult patients.

Twenty adult patients selected at random were studied because of a reduction in heart size, seen on routine chest radiographs. I analyzed etiologic factors, clinical, biochemical, and pathological abnormalities and cardiovascular status in relation to the radiographic findings and response to treatment. Reduction in heart size can occur as part of a wide spectrum of changes in certain endocrinal and nutritional deficiency diseases. Clinically there may be weakness as well as changes in heart rate, blood pressure, electrolytes, electrocardiograms, and loss of weight. All of these parameters improve with appropriate treatment.

Addison Disease↗
PubMed1980

Peritoneal mesothelioma.

The clinical and radiological features of peritoneal mesothelioma in four patients with an industrial history of asbestos exposure are described. The radiological features of intestinal obstruction, soft tissue masses and displacement and infiltration of bowel are stressed. A normal chest radiograph does not exclude the diagnosis. More sensitive diagnostic imaging and perhaps the use of laparoscopy may help to improve the accuracy of pre-mortem diagnosis.

Adult↗
PubMed1979

Pyeloduodenal fistula: a case report and review of the literature.

A case of the rare condition of pyeloduodenal fistula is presented--the thirty-second case so far recorded in the literature. The authors consider that this instance shows some of the features typical of the cases so far reported. The literature is reviewed and the aetiology, presentation, diagnostic methods and treatment are briefly discussed.

Adult↗