1. The condition is more common in males.
2. The investigation of choice is ultrasonography.
3. Hypertrophy is maximal in the prepyloric region.
4. The condition presents within the first week of birth.
Which of the statements given above are correct?
Congenital Hypertrophic Pyloric Stenosis: Statement Analysis
This question asks to identify the correct statements regarding congenital hypertrophic pyloric stenosis (CHPS).
Statement 1: The condition is more common in males.
This statement is correct. CHPS exhibits a significant male predilection, occurring approximately 4 to 5 times more frequently in males than females.
Statement 2: The investigation of choice is ultrasonography.
This statement is correct. Ultrasonography (USG) is the preferred diagnostic tool for CHPS. It is non-invasive, readily available, and highly accurate in visualizing the thickened pyloric muscle, measuring muscle wall thickness and channel length.
Statement 3: Hypertrophy is maximal in the prepyloric region.
This statement is incorrect. The hypertrophy specifically affects the circular muscle layer of the pyloric sphincter and canal, leading to thickening. While this occurs at the junction between the stomach and the duodenum, the term "prepyloric region" (area just before the pylorus) is not the precise location of maximal thickening; the pyloric muscle itself is thickened.
Statement 4: The condition presents within the first week of birth.
This statement is incorrect. CHPS typically manifests later, usually between 2 and 8 weeks of age. Presentation within the first week is uncommon.
Conclusion
Based on the analysis, statements 1 and 2 are correct.
Correct Option Identification
- Statement 1 is correct.
- Statement 2 is correct.
- Statement 3 is incorrect.
- Statement 4 is incorrect.
Therefore, the correct option includes only statements 1 and 2.
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