Biomedical subjects

A N Champoux

Publications and source records attributed to A N Champoux.

2 recordsLinked to original sources

PubMed1994

Recurrent intussusception. Risks and features.

OBJECTIVE: To determine the risk factors associated with recurrent intussusception (RI) and to characterize the timing, features, and complications of RI. DESIGN: Retrospective chart review. SETTING: Children's Hospital and Medical Center, Seattle, Wash. PARTICIPANTS: All patients with a diagnosis of intussusception who underwent barium enema as treatment for reduction between October 1, 1979 and December 31, 1990. Children with RI (N = 23, seven with two or more recurrent episodes) were classified as the case group; children with a single intussusception (N = 234), controls. RESULTS: There were no statistically significant differences in age, sex, race, symptoms, duration of symptoms, or results of the physical examination between the case group and controls. Reduction of the initial intussusception by a barium enema occurred in 96% of patients in the case group vs 62% of the controls (odds ratio, 13.50; 95% confidence intervals, 2.10 to 563.4; P = .003). Only one of 33 episodes of RI followed an operative reduction. In comparing the first recurrent episode with the initial episode, there was a significant reduction in the proportion of patients presenting with lethargy (0% vs 30%; Fisher Exact Test, P = .009) or blood in the stool (5% vs 52%; P < .002) and a drop in the median duration of symptoms from 20 to 6 hours. CONCLUSIONS: Recurrent intussusception cannot be predicted by presenting features or symptoms; operative reduction due to a failed reduction by a barium enema reduces the risk of RI; and patients with RI have fewer symptoms with a shorter duration.

Adolescent↗

PubMed1992

Septic arthritis versus transient synovitis of the hip: the value of screening laboratory tests.

STUDY OBJECTIVE: To determine the diagnostic value of screening laboratory and initial body temperature data in differentiating septic arthritis of the hip from transient synovitis of the hip in children who present to the emergency department with a complaint of hip pain. DESIGN: Retrospective review of cases of septic arthritis of the hip and transient synovitis of the hip in a 1:2.5 ratio. SETTING: An urban regional children's hospital with 20,000 annual ED visits. RESULTS: Ninety-four children with transient synovitis of the hip and 38 children with septic arthritis of the hip were identified. The children with septic arthritis of the hip had a significantly higher initial temperature (38.1 C versus 37.2 C, P = .000014), mean erythrocyte sedimentation rate (44 mm/hr versus 19 mm/hr, P = .000001), and mean WBC count (13,200/mm3 versus 11,200/mm3, P = .02). However, the degree of overlap in these variables was large. The combination of an erythrocyte sedimentation rate of more than 20 mm/hr and/or a temperature of more than 37.5 C identified 97% of all cases of septic arthritis of the hip. CONCLUSION: There is clinically significant overlap in the erythrocyte sedimentation rate, temperature, and WBC count in children with septic arthritis of the hip versus transient synovitis of the hip. All children with an irritable hip without a clearly identified source who have an erythrocyte sedimentation rate of more than 20 mm/hr or a temperature of more than 37.5 C should be considered for diagnostic hip aspiration.

Adolescent↗