Abstract
Background
Laparoscopic pyloromyotomy is the preferred surgical management of hypertrophic pyloric stenosis at most centers. We aimed to analyze the learning curve for laparoscopic pyloromyotomy using the experience of five fellowship-trained pediatric surgeons.
Methods
A retrospective review of consecutive patients undergoing laparoscopic pyloromyotomy was performed. All cases were performed with general surgery residents. Cumulative sum (CUSUM) analysis for operating time was performed for up to the first 150 consecutive cases for individual surgeons. Outcomes were compared to identify different phases of the learning curve for operative competency.
Results
A total of 414 patients were included in the analysis as not all surgeons had reached 150 cases at time of analysis. The mean operating time was 29.2 min for all cases across the 5 surgeons. CUSUM analysis for mean operating time revealed three phases of learning: Learning Phase (cases 1-16), Plateau Phase (cases 17-87), and a Proficiency Phase (cases 88-150). The mean operating time during the three phases was 34.1, 29.0, and 28.3 min, respectively (P = 0.005). There were no differences in complications, reoperations, length of stay, or readmissions across the three phases.
Conclusion
Three distinct phases of learning for laparoscopic pyloromyotomy were identified with no differences in outcomes across the phases. The operating time differed only for the Learning Phase, suggesting that some degree of proficiency occurs after 16 cases.
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Abbreviations
- ACGME:
-
Accreditation Council for Graduate Medical Education
- CUSUM:
-
Cumulative sum
- HPS:
-
Hypertrophic pyloric stenosis
- LP:
-
Laparoscopic pyloromyotomy
References
Wright TP (1936) Factors affecting the cost of airplanes. J Aero Sci 3(4):122–128
Ramsay CR, Grant AM, Wallace SA, Garthwaite PH, Monk AF, Russell IT (2000) Assessment of the learning curve in health technologies. A systematic review. Int J Technol Assess Health Care 16(4):1095–1108. https://doi.org/10.1017/s0266462300103149
Pio L, Musleh L, Paraboschi I et al (2020) Learning curve for robotic surgery in children: a systematic review of outcomes and fellowship programs. J Robot Surg 14(4):531–541. https://doi.org/10.1007/s11701-019-01026-w
Peláez Mata D, Herrero Álvarez S, Gómez Sánchez A, Pérez Egido L, Corona Bellostas C, de Agustín Asensio JC (2021) Laparoscopic learning curves. Cir Pediatr 34(1):20–27
Odermatt M, Ahmed J, Panteleimonitis S, Khan J, Parvaiz A (2017) Prior experience in laparoscopic rectal surgery can minimise the learning curve for robotic rectal resections: a cumulative sum analysis. Surg Endosc 31(10):4067–4076. https://doi.org/10.1007/s00464-017-5453-9
Dinçler S, Koller MT, Steurer J, Bachmann LM, Christen D, Buchmann P (2003) Multidimensional analysis of learning curves in laparoscopic sigmoid resection: eight-year results. Dis Colon Rectum 46(10):1371–1379. https://doi.org/10.1007/s10350-004-6752-5
Nasseri Y, Stettler I, Shen W et al (2021) Learning curve in robotic colorectal surgery. J Robot Surg 15(3):489–495. https://doi.org/10.1007/s11701-020-01131-1
Pedersen RN, Garne E, Loane M, Korsholm L, Husby S, Group EW (2008) Infantile hypertrophic pyloric stenosis: a comparative study of incidence and other epidemiological characteristics in seven European regions. J Matern Fetal Neonatal Med 21(9):599–604
Alain JL, Grousseau D, Terrier G (1990) Extra-mucosa pylorotomy by laparoscopy. Chir Pediatr 31(4–5):223–224
Alain JL, Grousseau D, Terrier G (1991) Extramucosal pylorotomy by laparoscopy. J Pediatr Surg 26(10):1191–1192
Hall NJ, Pacilli M, Eaton S, Reblock K, Gaines BA, Pastor A et al (2009) Recovery after open versus laparoscopic pyloromyotomy for pyloric stenosis: a double-blind multicentre randomised controlled trial. Lancet 373(9661):390–398
St Peter SD, Holcomb GW 3rd, Calkins CM, Murphy JP, Andrews WS, Sharp RJ et al (2006) Open versus laparoscopic pyloromyotomy for pyloric stenosis: a prospective, randomized trial. Ann Surg 244(3):363–370
Kethman WC, Harris AHS, Hawn MT, Wall JK (2018) Trends and surgical outcomes of laparoscopic versus open pyloromyotomy. Surg Endosc 32(7):3380–3385
Ford WD, Crameri JA, Holland AJ (1997) The learning curve for laparoscopic pyloromyotomy. J Pediatr Surg 32(4):552–554
Adibe OO, Nichol PF, Flake AW, Mattei P (2006) Comparison of outcomes after laparoscopic and open pyloromyotomy at a high-volume pediatric teaching hospital. J Pediatr Surg 41(10):1676–1678
Oomen MW, Hoekstra LT, Bakx R, Heij HA (2010) Learning curves for pediatric laparoscopy: how many operations are enough? The Amsterdam experience with laparoscopic pyloromyotomy. Surg Endosc 24(8):1829–1833
Kim SS, Lau ST, Lee SL, Waldhausen JH (2005) The learning curve associated with laparoscopic pyloromyotomy. J Laparoendosc Adv Surg Tech A 15(5):474–477
De Leval MR, Francois K, Bull C, Brawn W, Spiegelhalter D (1994) Analysis of a cluster of surgical failures. Application to a series of neonatal arterial switch operations. J Thorac Cardiovasc Surg 107(3):914–923
Yap CH, Colson ME, Watters DA (2007) Cumulative sum techniques for surgeons: a brief review. ANZ J Surg 77(7):583–586
Bokhari MB, Patel CB, Ramos-Valadez DI, Ragupathi M, Haas EM (2011) Learning curve for robotic-assisted laparoscopic colorectal surgery. Surg Endosc 25(3):855–860
Cundy TP, Gattas NE, White AD, Najmaldin AS (2015) Learning curve evaluation using cumulative summation analysis-a clinical example of pediatric robot-assisted laparoscopic pyeloplasty. J Pediatr Surg 50(8):1368–1373
Mackenzie H, Miskovic D, Ni M, Parvaiz A, Acheson AG, Jenkins JT et al (2013) Clinical and educational proficiency gain of supervised laparoscopic colorectal surgical trainees. Surg Endosc 27(8):2704–2711
Staerkle RF, Lunger F, Fink L, Sasse T, Lacher M, von Elm E et al (2021) Open versus laparoscopic pyloromyotomy for pyloric stenosis. Cochrane Database Syst Rev. https://doi.org/10.1002/14651858.CD012827.pub2
Vigano L, Laurent A, Tayar C, Tomatis M, Ponti A, Cherqui D (2009) The learning curve in laparoscopic liver resection: improved feasibility and reproducibility. Ann Surg 250(5):772–782
Tekkis PP, Senagore AJ, Delaney CP, Fazio VW (2005) Evaluation of the learning curve in laparoscopic colorectal surgery: comparison of right-sided and left-sided resections. Ann Surg 242(1):83–91
Sng KK, Hara M, Shin JW, Yoo BE, Yang KS, Kim SH (2013) The multiphasic learning curve for robot-assisted rectal surgery. Surg Endosc 27(9):3297–3307
Jackson TD, Wannares JJ, Lancaster RT, Rattner DW, Hutter MM (2011) Does speed matter? The impact of operative time on outcome in laparoscopic surgery. Surg Endosc 25(7):2288–2295. https://doi.org/10.1007/s00464-010-1550-8
Oomen M, Bakx R, Peeters B, Boersma D, Wijnen M, Heij H (2013) Laparoscopic pyloromyotomy, the tail of the learning curve. Surg Endosc 27(10):3705–3709
Binet A, Bastard F, Meignan P, Braik K, Le Touze A, Villemagne T et al (2018) Laparoscopic pyloromyotomy: A study of the learning curve. Eur J Pediatr Surg 28(3):238–242
Accreditation Council for Graduate Medical Education (ACGME) (2021) Defined Category Case Log Information, https://www.acgme.org/Specialties/Case-Log-Information/pfcatid/24/Surgery/ [accessed 6 Sept 2021]
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Jennifer T. Castle is funded by the NIH Training Grant T32CA160003.
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Dr. Brittany Levy is a consultant for Johnson and Johnson. Drs. Jennifer Castle, Mia MacDonald, John Draus, David Worhunsky, and Mr. Nicholas Bontrager have no conflicts of interest or financial ties to disclose.
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Levy, B.E., MacDonald, M., Bontrager, N. et al. Evaluation of the learning curve for laparoscopic pyloromyotomy. Surg Endosc 37, 5101–5108 (2023). https://doi.org/10.1007/s00464-023-09962-3
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DOI: https://doi.org/10.1007/s00464-023-09962-3