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Can the duration of vomiting predict postoperative outcomes in hypertrophic pyloric stenosis?
Ayman Al-Jazaeri1, Abdullah Al-Shehri, Mohammad Zamakhshary
1Division of Pediatric Surgery, King Saud University, College of Medicine, Riyadh, Saudi Arabia. aljazaeri@yahoo.com
Insights
In infants with hypertrophic pyloric stenosis (HPS), prolonged vomiting before surgery does not appear to significantly affect postoperative recovery outcomes. This finding is based on a review of patients undergoing pyloromyotomy.
Area of Science:
- Pediatric Surgery
- Gastroenterology
Background:
- Hypertrophic pyloric stenosis (HPS) is a frequent cause of gastric outlet obstruction (GOO) in infants.
- Prolonged GOO can lead to complications like acid-base disturbances and delayed recovery.
Purpose of the Study:
- To investigate the impact of prolonged vomiting, an indicator of GOO symptoms, on postoperative outcomes in infants with HPS.
- To determine if the duration of pre-operative vomiting correlates with specific postoperative recovery metrics.
Main Methods:
- Retrospective chart review of patients who underwent pyloromyotomy.
- Correlation analysis of pre-operative vomiting duration with electrolyte levels, acid-base balance, time to full feeding, morbidity, and hospitalization duration.
Main Results:
- Forty-seven patients were included in the study.
- The median duration of symptoms was 14 days, with surgery occurring 2 days post-admission.
- Prolonged vomiting did not correlate with preoperative chloride levels, pH, time to full feeding, or hospitalization duration. One wound infection was noted.
Conclusions:
- The duration of vomiting in infants presenting with HPS does not appear to significantly impact postoperative outcomes.
- Pyloromyotomy generally leads to unremarkable recovery regardless of pre-operative symptom duration.
Background And Objectives:
Hypertrophic pyloric stenosis (HPS) is a common cause of gastric outlet obstruction (GOO) in infants. Prolonged GOO is believed to result in acid and electrolyte disturbances, gastric atony, and delayed postoperative recovery. We studied the impact of prolonged vomiting as an indicator of GOO symptoms on the post-operative outcomes in HPS.
Design And Setting:
A retrospective chart review of all patients who underwent pyloromyotomy at a tertiary care center between February 1997 and February 2009.
Patients And Methods:
The duration of pre-operative vomiting was correlated with presenting electrolytes and acid-base balances, postoperative time to full feed, postoperative morbidity and duration of hospitalization.
Results:
Forty-seven patients were identified. At presentation, the median (range) for duration of symptoms was 14 (3-60) days, and surgeries were performed at 2 (0-6) days after admission. Apart from one case of postoperative wound infection, all patients had an unremarkable recovery. The unusually prolonged duration of vomiting in our cohort did not correlate with the mean (SD) preoperative chloride level of 93.9 (8.8) mEq/L, mean (SD) pH level of 7.5 (0.9), mean postoperative time to full feeding of 31 (15.1) hours, or mean duration of hospitalization of 5.1 (2.2) days.
Conclusion:
Duration of vomiting in HPS at presentation does not seem to have a significant impact on the postoperative outcomes.
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