Journal List > J Korean Assoc Pediatr Surg > v.20(2) > 1071944

Lee, Kim, Kim, Namgoong, and Hwang: Comparison of Pyloromyotomy with Supraumbilical Incision and Laparoscopic Pyloromyotomy for Hypertrophic Pyloric Stenosis Performed by a Single Surgeon



Hypertrophic pyloric stenosis (HPS) is known to be one of the most common cause of surgery for infants and pyloromyotomy was considered to the standard treatment. There has been an ongoing debate about whether laparoscopic pyloromyotomy (LP) or open pyloromyotomy (OP) is the best option for treating HPS. The aim of this study is to evaluate safety and effectiveness of LP by comparing the clinical results of both surgical strategies performed by single surgeon.


Between January 2000 and December 2013, 60 patients who underwent pyloromyotomy at Asan Medical Center performed by a surgeon were followed: open-supraumbilical incision (n=36) and LP (n=24). The parameters included sex, age and body weight at operation. Clinical outcomes included operation time, time to full feeding, postoperative hospital stay, and postoperative complications.


There were no significant differences in characteristics, postoperative hospital stay between the two groups. Time to full feeding was shorter in LP (OP 24.5 hours vs. LP 19.8 hours; p=0.063). In contrast, the mean operation time was longer in LP (OP 37.5 minutes vs. LP 43.5 minutes; p=0.072). Complications such as perforation of mucosal layer (OP 1 vs. LP 0) and wound problems (OP 2 vs. LP 0) were found to be not worse in laparoscopic group as compared with open group.


There has no difference both laparoscopic and open-supraumbilical incision in terms of postoperative hospital stay, time to full feeds and frequency of complications.

Figures and Tables

Fig. 1
Incision of supraumbilical open pyloromyotomy (supraumbilical incision) (A) and laparoscopic pyloromyotomy (B).
Table 1
Demographic Data of of HPS Patients

Values are presented as ratio or median (range).

HPS, hypertrophic pyloric stenosis; OP, open pyloromyotomy (supraumbilical incision); LP, laparoscopic pyloromyotomy.

Table 2
Clinical Outcomes Treated by OP or LP of Hypertrophic Pyloric Stenosis

Values are presented as median (range), n (%), or mean±SD.

OP, open pyloromyotomy (supraumbilical incision); LP, laparoscopic pyloromyotomy.


No potential conflict of interest relevant to this article was reported.


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