Clinical trial NCT03776669: Laparoscopic Sleeve Gastrectomy With or Without Hiatal Hernia Repair in Morbidly Obese Patients
Official title: Laparoscopic Sleeve Gastrectomy With or Without Hiatal Hernia Repair in Morbidly Obese Patients: a Single-center Randomized Controlled Trial
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: NA
Conditions: Morbid Obesity
Hiatal Hernia
Gastroesophageal Reflux Disease
Sleeve Gastrectomy
Keywords: Morbid obesity
Hiatal hernia
Gastroesophageal reflux disease
High resolution impedance manometry
Lead sponsor: National Taiwan University Hospital
Sponsor class: OTHER
First posted: 2018-12-17
Enrollment: 70
Sex: ALL
Minimum age (years): 20
Maximum age (years): 65
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: Background:

Obesity and hiatal hernia are both risk factors of gastroesophageal reflux disease (GERD), and the incidence of hiatal hernia is much higher in morbidly obese patients. Many believe that higher intra-abdominal pressure with higher esophagogastric junction (EGJ) pressure gradient in morbidly obese patients is the main mechanism accounting for the occurrence of GERD. Hiatal hernia, on the other hand, is associated with structure abnormality of EGJ. Sleeve gastrectomy (SG) has been becoming a standalone bariatric surgery for decades, and it has been proved to effectively induce long-term weight loss in morbidly obese patients. Some studies found morbidly obese patients benefited from resolution of GERD after SG, however, other studies had the opposite findings. Some morbidly obese patients had aggravating GERD or de novo GERD after SG. The mechanism is still unclear now. It might result from removal of fundus and sling muscular fibers of EGJ, increased intra-gastric pressure (IIGP), and hiatal hernia after surgery. High resolution impedance manometry (HRIM) is used to access esophageal and EGJ function objectively. Impedance reflux was more frequently observed in patients having gastroesophageal reflux (GER) symptoms after SG. In addition, previous studies also found decreased EGJ resting pressure, decreased length of lower esophageal sphincter (LES), and presence of hiatal hernia were associated with more GERD after SG.

Objective:

To evaluate the long-term EGJ function and GERD in morbidly obese patients with hiatal hernia receiving laparoscopic sleeve gastrectomy (LSG) with or without hiatal hernia repair (HHR).

Detailed description: Patients and methods:

A total of 70 patients will be recruited and randomized to two groups with a 1:1 allocation ratio. Patients in the control group receive LSG alone and in the experimental group receive LSG with HHR. All subjects should provide basic clinical and demographic information, be evaluated for GER symptoms using GerdQ score, sign informed consent, and complete preoperative abdominal computed tomography (CT) scan, esophagogastroduodenoscopy (EGD), and HRIM. Outpatient follow-up would be arranged 1 weeks after discharge, then 1 month, 3 months, 6 months, and 12 months after surgery. Weight change and GER symptoms will be evaluated at every outpatient visit. Abdominal CT scan, EGD, and HRIM will be performed 12 months after surgery.

Expected results:

Less reflux esophagitis, less impedance reflux episodes, lower incidence of hiatal hernia, higher EGJ resting pressure, and longer LES length should be observed in morbidly obese patients receiving LSG with HHR at 12-month follow-up, using EGD and HRIM as evaluation tools. Furthermore, lower GerdQ score should be observed in these patients.

Eligibility criteria: Inclusion Criteria:

* Patients with:

  1. Body mass index (BMI) ≧ 35, or
  2. 30 ≦ BMI \< 35, with inadequately controlled type 2 diabetes mellitus (T2DM) or metabolic syndrome, or
  3. T2DM with BMI ≧ 32.5, or
  4. T2DM with BMI between 27.5 and 32.5 not well controlled by medication, especially for those with major cardiovascular risk.
* Age: 20 to 65 years old.
* Hiatal hernia diagnosed by either:

  1. HRIM: defined as the distance between low esophageal sphincter (LES) and crural diaphragm (CD) equal to or greater than 2 cm. (LES-CD ≧ 2 cm)
  2. EGD: defined as the apparent separation between the squamocolumnar junction and the diaphragmatic impression is greater than 2 cm.

Exclusion Criteria:

* Prior major gastrointestinal (GI) tract surgery.
* Bleeding tendency.
* American Society of Anesthesiologists physical status (ASA) ≧ class III.
* Pregnancy or lactating women.
* Allergy to contrast medium for CT scan.
* Concomitantly untreated or uncontrolled endocrine disease.
* Alcohol or drug abuse.
* Mental, behavioral, and neurodevelopmental disorders.

  1. Patients who possess "National Health Insurance (NHI) Major Illness/Injury Certificate" for ICD-10-CM codes F01-F99. (ICD: International Classification of Diseases; CM: Clinical Modification)
  2. Patients who have been hospitalized in psychiatric ward in the recent one year.
* Type IV hiatal hernia.
* Moderate to severe reflux esophagitis (LA classification grade B/C/D) refractory to medical treatment.

Primary outcomes:
measure: De novo reflux esophagitis
timeFrame: Within 12 months after surgery if symptomatic or at 12 months if asymptomatic.
Secondary outcomes:
measure: Impedance reflux
timeFrame: 12 months after the surgery
measure: Esophagogastric junction (EGJ) resting pressure
timeFrame: 12 months after the surgery
measure: Lower esophageal sphincter (LES) length
timeFrame: 12 months after the surgery
measure: De novo or aggravating hiatal hernia
timeFrame: 12 months after the surgery (or within 12 months after surgery if symptomatic )
measure: GerdQ score
timeFrame: At 1 week (± 1 week) after discharge, then 1 month (± 2 weeks), 3 months (± 1 month), 6 months (± 1 month), and 12 months (± 1 month) after surgery.
measure: Post-operative complication
timeFrame: Within 30 days of surgery
measure: Mesh-related complication
timeFrame: Within 12 months after surgery
Other outcomes:
Locations:
city: Taipei
country: Taiwan
facility: National Taiwan University Hospital
Study officials:
affiliation: National Taiwan University Hospital
name: PoChu Lee, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Che F, Nguyen B, Cohen A, Nguyen NT. Prevalence of hiatal hernia in the morbidly obese. Surg Obes Relat Dis. 2013 Nov-Dec;9(6):920-4. doi: 10.1016/j.soard.2013.03.013. Epub 2013 Apr 19.
citation: Santonicola A, Angrisani L, Cutolo P, Formisano G, Iovino P. The effect of laparoscopic sleeve gastrectomy with or without hiatal hernia repair on gastroesophageal reflux disease in obese patients. Surg Obes Relat Dis. 2014 Mar-Apr;10(2):250-5. doi: 10.1016/j.soard.2013.09.006. Epub 2013 Sep 20.
citation: Soricelli E, Iossa A, Casella G, Abbatini F, Cali B, Basso N. Sleeve gastrectomy and crural repair in obese patients with gastroesophageal reflux disease and/or hiatal hernia. Surg Obes Relat Dis. 2013 May-Jun;9(3):356-61. doi: 10.1016/j.soard.2012.06.003. Epub 2012 Jun 19.
citation: Mahawar KK, Carr WR, Jennings N, Balupuri S, Small PK. Simultaneous sleeve gastrectomy and hiatus hernia repair: a systematic review. Obes Surg. 2015 Jan;25(1):159-66. doi: 10.1007/s11695-014-1470-0.
citation: Crawford C, Gibbens K, Lomelin D, Krause C, Simorov A, Oleynikov D. Sleeve gastrectomy and anti-reflux procedures. Surg Endosc. 2017 Mar;31(3):1012-1021. doi: 10.1007/s00464-016-5092-6. Epub 2016 Jul 20.
citation: Braghetto I, Lanzarini E, Korn O, Valladares H, Molina JC, Henriquez A. Manometric changes of the lower esophageal sphincter after sleeve gastrectomy in obese patients. Obes Surg. 2010 Mar;20(3):357-62. doi: 10.1007/s11695-009-0040-3. Epub 2009 Dec 15.
citation: DuPree CE, Blair K, Steele SR, Martin MJ. Laparoscopic sleeve gastrectomy in patients with preexisting gastroesophageal reflux disease : a national analysis. JAMA Surg. 2014 Apr;149(4):328-34. doi: 10.1001/jamasurg.2013.4323.
citation: Oor JE, Roks DJ, Unlu C, Hazebroek EJ. Laparoscopic sleeve gastrectomy and gastroesophageal reflux disease: a systematic review and meta-analysis. Am J Surg. 2016 Jan;211(1):250-67. doi: 10.1016/j.amjsurg.2015.05.031. Epub 2015 Aug 14.
citation: Soricelli E, Casella G, Rizzello M, Cali B, Alessandri G, Basso N. Initial experience with laparoscopic crural closure in the management of hiatal hernia in obese patients undergoing sleeve gastrectomy. Obes Surg. 2010 Aug;20(8):1149-53. doi: 10.1007/s11695-009-0056-8. Epub 2010 Jan 5.
citation: Ruscio S, Abdelgawad M, Badiali D, Iorio O, Rizzello M, Cavallaro G, Severi C, Silecchia G. Simple versus reinforced cruroplasty in patients submitted to concomitant laparoscopic sleeve gastrectomy: prospective evaluation in a bariatric center of excellence. Surg Endosc. 2016 Jun;30(6):2374-81. doi: 10.1007/s00464-015-4487-0. Epub 2015 Oct 1.
citation: Samakar K, McKenzie TJ, Tavakkoli A, Vernon AH, Robinson MK, Shikora SA. The Effect of Laparoscopic Sleeve Gastrectomy with Concomitant Hiatal Hernia Repair on Gastroesophageal Reflux Disease in the Morbidly Obese. Obes Surg. 2016 Jan;26(1):61-6. doi: 10.1007/s11695-015-1737-0.
citation: Tutuian R, Vela MF, Shay SS, Castell DO. Multichannel intraluminal impedance in esophageal function testing and gastroesophageal reflux monitoring. J Clin Gastroenterol. 2003 Sep;37(3):206-15. doi: 10.1097/00004836-200309000-00004.
citation: Kahrilas PJ, Bredenoord AJ, Fox M, Gyawali CP, Roman S, Smout AJ, Pandolfino JE; International High Resolution Manometry Working Group. The Chicago Classification of esophageal motility disorders, v3.0. Neurogastroenterol Motil. 2015 Feb;27(2):160-74. doi: 10.1111/nmo.12477. Epub 2014 Dec 3.
citation: Suter M, Dorta G, Giusti V, Calmes JM. Gastro-esophageal reflux and esophageal motility disorders in morbidly obese patients. Obes Surg. 2004 Aug;14(7):959-66. doi: 10.1381/0960892041719581.
citation: Mion F, Tolone S, Garros A, Savarino E, Pelascini E, Robert M, Poncet G, Valette PJ, Marjoux S, Docimo L, Roman S. High-resolution Impedance Manometry after Sleeve Gastrectomy: Increased Intragastric Pressure and Reflux are Frequent Events. Obes Surg. 2016 Oct;26(10):2449-56. doi: 10.1007/s11695-016-2127-y.
citation: Jones R, Junghard O, Dent J, Vakil N, Halling K, Wernersson B, Lind T. Development of the GerdQ, a tool for the diagnosis and management of gastro-oesophageal reflux disease in primary care. Aliment Pharmacol Ther. 2009 Nov 15;30(10):1030-8. doi: 10.1111/j.1365-2036.2009.04142.x. Epub 2009 Sep 8.
citation: Bredenoord AJ, Fox M, Kahrilas PJ, Pandolfino JE, Schwizer W, Smout AJ; International High Resolution Manometry Working Group. Chicago classification criteria of esophageal motility disorders defined in high resolution esophageal pressure topography. Neurogastroenterol Motil. 2012 Mar;24 Suppl 1(Suppl 1):57-65. doi: 10.1111/j.1365-2982.2011.01834.x.