Is there any correlation between duration of vomiting before pyloromyotomy and eradication of symptoms after pyloromyotomy in hypertrophic pyloric stenosis?

Saeid Aslanabadi, Davoud Badebarin, Fereshteh Yazdanpanah, Masoud Jamshidi, Hatef Alizadeh Aghdam, Sina Zarrintan



Introduction: Hypertrophic pyloric stenosis (HPS) is among common GI disorders in young infants, with an incidence of 1-2:1000 live births in the world. In this study, we wanted to investigate the correlation between duration of symptoms before surgery and eradication of symptoms after pyloromyotomy in HPS.

Materials and methods: One hundred and twenty five (102 boys and 23 girls) patients with suspected infantile HPS were treated surgically by Ramstedt pyloromyotomy between 2004 and 2014 at pediatric surgery ward of Tabriz Children’s Hospital, Iran. The demographic features, clinical findings, diagnostic work-up and postoperative specifications of the patients were studied retrospectively.

Results: We studied 125 patients with HPS. Male to female ratio was 4:1. The patients were 16 to 90 days of old and the mean age was 39±1.42 days. The range of pyloric canal length was 7.60 to 29.00 mm and the mean length was 19.54±3.42 mm. Pyloric muscle diameter was 2.70 to 9.00 mm and the mean diameter was 4.86±1.14 mm. Seventy two percent of patients had episodes of vomiting after operation. Mean time of persistence of vomiting after pyloromyotomy was 15.73±0.15 hours. Mean discharge time was 55.22±0.08 hours. Radiologic findings did not show any significant correlation with persistence of vomiting or discharge time. 

Conclusion: The present study revealed that duration of vomiting before surgery and continuing symptoms could not predict postoperative symptom eradication after pyloromyotomy in HPS.


hypertrophic pyloric stenosis; pyloromyotomy; vomiting

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Hernanz-Schulman M: Infantile hypertrophic pyloric stenosis. Radiology 2003; 227:319-31.

Sherwood W, Choudhry M, Lakhoo K: Infantile hypertrophic pyloric stenosis: An infectious cause. Pediatr Surg Int 2007; 23:61-

Mitchell LE, Risch N: The genetics of infantile hypertrophic pyloric stenosis. A reanalysis. Am J Dis Child 1993; 147:1203-11.

Velaoras K, Bitsori M, Galanakis E, et al: Hypertrophic pyloric stenosis in twins: Same genes or same environments. Pediatr Surg

Int 2005; 21:669-71.

White JS, Clements WD, Heggarty P, et al: Treatment of infantile hypertrophic pyloric stenosis in a district general hospital: A

review of 160 cases. J Pediatr Surg 2003; 38:1333-6.

Ayman Al-Jazaeri, Abdullah Al-Shehri, Mohammad Zamakhshary, et al: Can the duration of vomiting predict postoperative

outcomes in hypertrophic pyloric stenosis? Ann Saudi Med. 2011 Nov-Dec; 31(6): 609–612.

Michalsky MP, Pratt D, Caniano DA, et al: Streamlining the care of patients with hypertrophic pyloric stenosis: Application of a

clinical pathway. J Pediatr Surg. 2002; 37:1072–5.

Garza JJ, Morash D, Dzakovic A, et al: Ad libitum feeding decreases hospital stay for neonates after pyloromyotomy. J Pediatr

Surg. 2002; 37:493–5.

Leinwand MJ, Shaul DB, Anderson KD: A standardized feeding regimen for hypertrophic pyloric stenosis decrease length of

hospitalization and hospital costs. J Pediatr Surg. 2000; 35:1063–5.

Van den Ende ED, Allema JH, Hazebroek FW, et al: Can pyloromyotomy for infantile hypertrophic pyloric stenosis be performed

in any hospital? Results from two teaching hospitals. Eur J Pediatr.2007; 166:553–7.

St Peter SD1, Holcomb GW 3rd, Calkins CM, et al: Open versus laparoscopic pyloromyotomy for pyloric stenosis: A prospective,

randomized trial.Ann Surg. 2006; 244:363–70.



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