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Myotomy length informed by high-resolution esophageal manometry (HREM) results in improved per-oral endoscopic myotomy (POEM) outcomes for type III achalasia.
Surg Endosc. 2019 03; 33(3):886-894.SE

Abstract

INTRODUCTION

High-resolution esophageal manometry (HREM) is essential in characterizing achalasia subtype and the extent of affected segment to plan the myotomy starting point during per-oral endoscopic myotomy (POEM). However, evidence is lacking that efficacy is improved by tailoring myotomy to the length of the spastic segment on HREM. We sought to investigate whether utilizing HREM to dictate myotomy length in POEM impacts postoperative outcomes.

METHODS

Comparative analysis of HREM-tailored to non-tailored patients from a prospectively collected database of all POEMs at our institution January 2011 through July 2017. A tailored myotomy is defined as extending at least the length of the diseased segment, as initially measured on HREM.

RESULTS

Forty patients were included (11 tailored versus 29 non-tailored). There were no differences in patient age (p = 0.6491) or BMI (p = 0.0677). Myotomy lengths were significantly longer for tailored compared to non-tailored overall (16.6 ± 2.2 versus 13.5 ± 1.8; p < 0.0001), and for only type III achalasia (15.9 ± 2.4 versus 12.7 ± 1.2; p = 0.0453), likely due to more proximal starting position in tailored cases (26.0 ± 2.2 versus 30.0 ± 2.7; p < 0.0001). Procedure success (Eckardt < 3) was equivalent across groups overall (p = 0.5558), as was postoperative Eckardt score (0.2 ± 0.4 versus 0.8 ± 2.3; p = 0.4004). Postoperative Eckardt score was significantly improved in the tailored group versus non-tailored for type III only (0.2 ± 0.4 versus 1.3 ± 1.5; p = 0.0435). A linear correlation was seen between increased length and greater improvement in Eckardt score in the non-tailored group (p = 0.0170).

CONCLUSIONS

Using HREM to inform surgeons of the proximal location of the diseased segment resulted in longer myotomies, spanning the entire affected segment in type III achalasia, and in lower postoperative Eckardt scores. Longer myotomy length is often more easily achieved with POEM than with Heller myotomy, which raises the question of whether POEM results in better outcomes for type III achalasia, as types I and II do not generally have measurable spastic segments.

Authors+Show Affiliations

Department of Surgery, Baystate Medical Center, University of Massachusetts Medical School, 759 Chestnut Street, Springfield, MA, 01199, USA. Erica.KaneMD@baystatehealth.org.Division of Gastroenterology, Department of Medicine, Baystate Medical Center, University of Massachusetts Medical School, Springfield, MA, USA.Division of Gastroenterology, Department of Medicine, Baystate Medical Center, University of Massachusetts Medical School, Springfield, MA, USA.Department of Surgery, Baystate Medical Center, University of Massachusetts Medical School, 759 Chestnut Street, Springfield, MA, 01199, USA.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30054739

Citation

Kane, Erica D., et al. "Myotomy Length Informed By High-resolution Esophageal Manometry (HREM) Results in Improved Per-oral Endoscopic Myotomy (POEM) Outcomes for Type III Achalasia." Surgical Endoscopy, vol. 33, no. 3, 2019, pp. 886-894.
Kane ED, Budhraja V, Desilets DJ, et al. Myotomy length informed by high-resolution esophageal manometry (HREM) results in improved per-oral endoscopic myotomy (POEM) outcomes for type III achalasia. Surg Endosc. 2019;33(3):886-894.
Kane, E. D., Budhraja, V., Desilets, D. J., & Romanelli, J. R. (2019). Myotomy length informed by high-resolution esophageal manometry (HREM) results in improved per-oral endoscopic myotomy (POEM) outcomes for type III achalasia. Surgical Endoscopy, 33(3), 886-894. https://doi.org/10.1007/s00464-018-6356-0
Kane ED, et al. Myotomy Length Informed By High-resolution Esophageal Manometry (HREM) Results in Improved Per-oral Endoscopic Myotomy (POEM) Outcomes for Type III Achalasia. Surg Endosc. 2019;33(3):886-894. PubMed PMID: 30054739.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Myotomy length informed by high-resolution esophageal manometry (HREM) results in improved per-oral endoscopic myotomy (POEM) outcomes for type III achalasia. AU - Kane,Erica D, AU - Budhraja,Vikram, AU - Desilets,David J, AU - Romanelli,John R, Y1 - 2018/07/27/ PY - 2018/04/13/received PY - 2018/07/06/accepted PY - 2018/7/29/pubmed PY - 2020/3/28/medline PY - 2018/7/29/entrez KW - Eckardt score KW - High-resolution esophageal manometry KW - Per-oral endoscopic myotomy KW - Type III achalasia SP - 886 EP - 894 JF - Surgical endoscopy JO - Surg Endosc VL - 33 IS - 3 N2 - INTRODUCTION: High-resolution esophageal manometry (HREM) is essential in characterizing achalasia subtype and the extent of affected segment to plan the myotomy starting point during per-oral endoscopic myotomy (POEM). However, evidence is lacking that efficacy is improved by tailoring myotomy to the length of the spastic segment on HREM. We sought to investigate whether utilizing HREM to dictate myotomy length in POEM impacts postoperative outcomes. METHODS: Comparative analysis of HREM-tailored to non-tailored patients from a prospectively collected database of all POEMs at our institution January 2011 through July 2017. A tailored myotomy is defined as extending at least the length of the diseased segment, as initially measured on HREM. RESULTS: Forty patients were included (11 tailored versus 29 non-tailored). There were no differences in patient age (p = 0.6491) or BMI (p = 0.0677). Myotomy lengths were significantly longer for tailored compared to non-tailored overall (16.6 ± 2.2 versus 13.5 ± 1.8; p < 0.0001), and for only type III achalasia (15.9 ± 2.4 versus 12.7 ± 1.2; p = 0.0453), likely due to more proximal starting position in tailored cases (26.0 ± 2.2 versus 30.0 ± 2.7; p < 0.0001). Procedure success (Eckardt < 3) was equivalent across groups overall (p = 0.5558), as was postoperative Eckardt score (0.2 ± 0.4 versus 0.8 ± 2.3; p = 0.4004). Postoperative Eckardt score was significantly improved in the tailored group versus non-tailored for type III only (0.2 ± 0.4 versus 1.3 ± 1.5; p = 0.0435). A linear correlation was seen between increased length and greater improvement in Eckardt score in the non-tailored group (p = 0.0170). CONCLUSIONS: Using HREM to inform surgeons of the proximal location of the diseased segment resulted in longer myotomies, spanning the entire affected segment in type III achalasia, and in lower postoperative Eckardt scores. Longer myotomy length is often more easily achieved with POEM than with Heller myotomy, which raises the question of whether POEM results in better outcomes for type III achalasia, as types I and II do not generally have measurable spastic segments. SN - 1432-2218 UR - https://www.unboundmedicine.com/medline/citation/30054739/Myotomy_length_informed_by_high_resolution_esophageal_manometry__HREM__results_in_improved_per_oral_endoscopic_myotomy__POEM__outcomes_for_type_III_achalasia_ L2 - https://doi.org/10.1007/s00464-018-6356-0 DB - PRIME DP - Unbound Medicine ER -