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2010, Number 2

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Acta Pediatr Mex 2010; 31 (2)

Hypertrophic pyloric stenosis. Clinical and epidemiologic study

Baeza-Herrera C, Villalobos-Castillejos A, Arcos-Aponte A, López- Castellanos J, García-Cabello LM

Language: Spanish
References: 36
Page: 50-54
PDF size: 500.21 Kb.


ABSTRACT

Introduction. Hypertrophic pyloric stenosis is the most common condition requiring abdominal surgical intervention during first weeks of life. The etiology is unknown and the diagnosis is based on a clinical picture characterized by the patient being the first-born male child presenting with projectile vomiting. The pathognomonic finding is a palpable “olive” mass in the upper abdomen.
Material and method. During a 24-months period a 147 children were treated for hypertrophic pyloric stenosis. There were 120 (87.1%) boys and 27 girls. For several symptoms a Pearson correlation was applied and T student for pre and postoperative platelet count.
Results. The age range at diagnosis was 16 to 120 days (median 82.0 days). The time between onset and hospital admission was 2 to 84 days (median 24 days). According gestation, 78 (53.1%) patients was born in first place and 49 in second; 135 (91.9%) infants had blood group 0. More than 75% of patients had preoperative thrombocytosis and postoperative platelet count normalization had a p‹ 0.0001.
Conclusion. Frequently appears in the first-born male child with blood group 0. Increased platelet count is a good “marker” of infantile pyloric stenosis and postoperative normalization was considered as evidence of therapeutic effectiveness.


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