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Clinical diagnosis of pyloric stenosis: a declining art
1Sydney University, Department of Paediatrics and Child Health, Children's Hospital, Camperdown, Australia.
Insights
Diagnostic imaging for infantile hypertrophic pyloric stenosis did not improve diagnosis speed or patient outcomes. Increased reliance on imaging may decrease clinical diagnostic skills.
Area of Science:
- Pediatric Surgery
- Diagnostic Imaging
- Infant Health
Background:
- Infantile hypertrophic pyloric stenosis (IHPS) is a common surgical emergency in infants.
- Accurate and timely diagnosis is crucial for optimal patient management and outcomes.
Purpose of the Study:
- To evaluate the impact of diagnostic imaging on the speed of IHPS diagnosis.
- To assess changes in pre-operative hydration duration and hospital length of stay.
- To determine if increased imaging use has affected clinical diagnostic skills.
Main Methods:
- Retrospective chart review of infants diagnosed with IHPS.
- Comparison of two cohorts: 1974-1977 (n=215) and 1988-1991 (n=187).
- Analysis of diagnostic methods, time to diagnosis, pre-operative management, and length of stay.
Main Results:
- The proportion of cases diagnosed via imaging increased significantly from 20% to 61%.
- Palpation of a pyloric mass decreased as a primary diagnostic method.
- No significant differences were observed in time to diagnosis, pre-operative hydration, or hospital length of stay between the two periods.
Conclusions:
- Increased use of diagnostic imaging for IHPS has not led to earlier diagnosis or improved management.
- While imaging aids in complex cases, over-reliance may diminish clinical diagnostic proficiency.
- Clinical assessment remains vital for diagnosing IHPS, especially in straightforward cases.
Objective:
To assess whether diagnostic imaging of pyloric stenosis has made a difference in rapidity of diagnosis, duration of pre-operative hydration, and length of stay in hospital.
Design:
Chart review of infants with confirmed diagnosis of pyloric stenosis.
Setting:
Paediatric teaching hospital.
Subjects:
215 infants with a confirmed diagnosis of pyloric stenosis seen during 1974-7 and 187 infants with pyloric stenosis seen during 1988-91.
Main Outcome Measures:
State of hydration on admission, time between presentation to hospital and a definite diagnosis, techniques used to make the diagnosis, whether a pyloric mass was felt before or after an imaging procedure, time between presentation and surgery, and length of stay in hospital.
Results:
The average age at presentation was 40 days in both groups. A pyloric mass was palpated either without or before an imaging study in 87% (187/215) of cases during 1974-7 but in only 49% (91/187) during 1988-91. The use of barium meal examination and ultrasonography increased from 20% (42/215) of cases during 1974-7 to 61% (114/187) during 1988-91. There were no significant differences between the two groups in the time taken to establish a diagnosis, the mean duration of preoperative treatment, or the length of stay in hospital (after allowance for the decline in average length of stay of all hospital patients between the two periods).
Conclusions:
An increased use of diagnostic imaging for pyloric stenosis did not lead to earlier diagnosis or better management. While imaging is important in identifying pyloric stenosis in difficult cases, increasing reliance on imaging has reduced doctors' skills in diagnosing pyloric stenosis clinically.