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Michael S, Marom G, Brodie R, Salem SA, Fishman Y, Shein GS, Helou B, Pikarsky AJ, Mintz Y. The Angle of His as a Measurable Element of the Anti-reflux Mechanism. J Gastrointest Surg 2023; 27:2279-2286. [PMID: 37620664 DOI: 10.1007/s11605-023-05808-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 07/21/2023] [Indexed: 08/26/2023]
Abstract
BACKGROUND Gastroesophageal reflux disease (GERD) is a common condition, resulting from the loss of the anti-reflux barrier. Laparoscopic fundoplication is the surgical procedure of choice for treatment of GERD; however, there remains a debate on the exact mechanism through which it prevents reflux. OBJECTIVES Our aim was to understand the relationship between reflux, fundoplication, and the angle of His on an experimental model. METHODS The study was conducted on four groups of fresh explanted swine stomachs: control group, myotomy, myotomy with Nissen fundoplication, and myotomy with Toupet fundoplication. The stomachs were placed in a specially designated container on an inclinable platform which would increase the hydrostatic pressure on the esophago-gastric junction. Measurements of the angle of His using fluoroscopy and the esophago-gastric orifice area using endoscopy were performed, and the occurrence of reflux was documented. RESULTS Each group of the study contained nine swine stomachs. In the control and myotomy groups, the angle became wider as the incline level increased the pressure and was significantly different between the groups (p < .001). Both groups demonstrated an increase in the orifice area as the incline level increased the pressure. There was a significant correlation between the angle of His and the area of the esophago-gastric orifice (p < .001). In the control group, the reflux began at the 0°. In the myotomy group, it began at the + 15° incline (less pressure). Reflux rarely occurred in the Nissen and Toupet groups, with the breaking point being mostly defined as "beyond - 30°". A significant difference was noted in the occurrence of reflux between fundoplication and the non-fundoplication groups (p < 0.001), while there was no significant difference between the Toupet and Nissen groups (p = 0.134). Analysis showed a significant independent correlation between both the angle of His and the orifice area with the presence of reflux (p = .002 and p = .024 respectively). CONCLUSIONS In this study, we developed an experimental model to enable careful evaluation of the elements of the anti-reflux mechanism, of which, the angle of His has a measurable element. We demonstrated that as the angle of His becomes wider the esophago-gastric orifice area becomes larger. Additionally, a wider angle of His and a larger esophago-gastric orifice area were correlated independently with more reflux. This suggests that the fundoplication creates an acute angle of His which is correlated with a smaller area of the esophago-gastric orifice and eventually with a lower incidence of reflux.
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Affiliation(s)
- Samer Michael
- Department of General Surgery, Hadassah-Hebrew University Medical Center, POB 12000, 91120, Jerusalem, Israel.
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel.
| | - Gad Marom
- Department of General Surgery, Hadassah-Hebrew University Medical Center, POB 12000, 91120, Jerusalem, Israel
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Ronit Brodie
- Department of General Surgery, Hadassah-Hebrew University Medical Center, POB 12000, 91120, Jerusalem, Israel
| | - Samer Abu Salem
- Department of General Surgery, Hadassah-Hebrew University Medical Center, POB 12000, 91120, Jerusalem, Israel
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Yuri Fishman
- Department of General Surgery, Hadassah-Hebrew University Medical Center, POB 12000, 91120, Jerusalem, Israel
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Gabriel Szydlo Shein
- Department of General Surgery, Hadassah-Hebrew University Medical Center, POB 12000, 91120, Jerusalem, Israel
| | - Brigitte Helou
- Department of General Surgery, Hadassah-Hebrew University Medical Center, POB 12000, 91120, Jerusalem, Israel
| | - Alon J Pikarsky
- Department of General Surgery, Hadassah-Hebrew University Medical Center, POB 12000, 91120, Jerusalem, Israel
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Yoav Mintz
- Department of General Surgery, Hadassah-Hebrew University Medical Center, POB 12000, 91120, Jerusalem, Israel
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
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Slater BJ, Collings A, Dirks R, Gould JC, Qureshi AP, Juza R, Rodríguez-Luna MR, Wunker C, Kohn GP, Kothari S, Carslon E, Worrell S, Abou-Setta AM, Ansari MT, Athanasiadis DI, Daly S, Dimou F, Haskins IN, Hong J, Krishnan K, Lidor A, Litle V, Low D, Petrick A, Soriano IS, Thosani N, Tyberg A, Velanovich V, Vilallonga R, Marks JM. Multi-society consensus conference and guideline on the treatment of gastroesophageal reflux disease (GERD). Surg Endosc 2023; 37:781-806. [PMID: 36529851 DOI: 10.1007/s00464-022-09817-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 12/02/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND Gastroesophageal reflux disease (GERD) is one of the most common diseases in North America and globally. The aim of this guideline is to provide evidence-based recommendations regarding the most utilized and available endoscopic and surgical treatments for GERD. METHODS Systematic literature reviews were conducted for 4 key questions regarding the surgical and endoscopic treatments for GERD in adults: preoperative evaluation, endoscopic vs surgical or medical treatment, complete vs partial fundoplication, and treatment for obesity (body mass index [BMI] ≥ 35 kg/m2) and concomitant GERD. Evidence-based recommendations were formulated using the GRADE methodology by subject experts. Recommendations for future research were also proposed. RESULTS The consensus provided 13 recommendations. Through the development of these evidence-based recommendations, an algorithm was proposed for aid in the treatment of GERD. Patients with typical symptoms should undergo upper endoscopy, manometry, and pH-testing; additional testing may be required for patients with atypical or extra-esophageal symptoms. Patients with normal or abnormal findings on manometry should consider undergoing partial fundoplication. Magnetic sphincter augmentation or fundoplication are appropriate surgical procedures for adults with GERD. For patients who wish to avoid surgery, the Stretta procedure and transoral incisionless fundoplication (TIF 2.0) were found to have better outcomes than proton pump inhibitors alone. Patients with concomitant obesity were recommended to undergo either gastric bypass or fundoplication, although patients with severe comorbid disease or BMI > 50 should undergo Roux-en-Y gastric bypass for the additional benefits that follow weight loss. CONCLUSION Using the recommendations an algorithm was developed by this panel, so that physicians may better counsel their patients with GERD. There are certain patient factors that have been excluded from included studies/trials, and so these recommendations should not replace surgeon-patient decision making. Engaging in the identified research areas may improve future care for GERD patients.
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Affiliation(s)
- Bethany J Slater
- University of Chicago Medicine, 5841 S. Maryland Avenue, MC 4062, Chicago, IL, USA.
| | - Amelia Collings
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Rebecca Dirks
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Jon C Gould
- Division of Minimally Invasive and Gastrointestinal Surgery, Department of Surgery, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Alia P Qureshi
- Division of General & GI Surgery, Foregut Surgery, Oregon Health & Science University, Portland, OR, USA
| | - Ryan Juza
- Department of Surgery, University of Wisconsin, Madison, WI, USA
| | - María Rita Rodríguez-Luna
- Research Institute Against Digestive Cancer (IRCAD) and ICube Laboratory, Photonics Instrumentation for Health, Strasbourg, France
| | | | - Geoffrey P Kohn
- Department of Surgery, Monash University, Melbourne, VIC, Australia
| | - Shanu Kothari
- Department of Surgery, Prisma Health, Greenville, SC, USA
| | | | | | - Ahmed M Abou-Setta
- Department of Community Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Mohammed T Ansari
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Canada
| | | | - Shaun Daly
- Department of Surgery, University of California, Irvine, Orange, CA, USA
| | | | - Ivy N Haskins
- Department of Surgery, University of Nebraska Medical Center, Omaha, USA
| | - Julie Hong
- Department of Surgery, New York Presbyterian/Queens, Queens, USA
| | | | - Anne Lidor
- Department of Surgery, University of Wisconsin, Madison, WI, USA
| | - Virginia Litle
- Section of Thoracic Surgery, Department of Cardiovascular Surgery, Intermountain Healthcare, Salt Lake City, UT, USA
| | - Donald Low
- Virginia Mason Medical Center, Seattle, WA, USA
| | - Anthony Petrick
- Department of General Surgery, Geisinger School of Medicine, Geisinger Medical Center, Danville, PA, USA
| | - Ian S Soriano
- Department of Surgery, University of California San Francisco School of Medicine, San Francisco, CA, USA
| | - Nirav Thosani
- McGovern Medical School, Center for Interventional Gastroenterology at UTHealth, Houston, TX, USA
| | - Amy Tyberg
- Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Vic Velanovich
- Division of Gastrointestinal Surgery, Tampa General, Tampa, FL, USA
| | - Ramon Vilallonga
- Endocrine, Metabolic and Bariatric Unit, General Surgery Department, Vall d'Hebron University Hospital, Center of Excellence for the EAC-BC, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Jeffrey M Marks
- Case Western Reserve University School of Medicine, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
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Changes in the disease-specific quality of life following Dor fundoplication. A multicentre cross-sectional study. Ann Med Surg (Lond) 2020; 55:252-255. [PMID: 32528674 PMCID: PMC7281361 DOI: 10.1016/j.amsu.2020.05.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/09/2020] [Accepted: 05/12/2020] [Indexed: 01/19/2023] Open
Abstract
Background Gastrooesophageal reflux disease (GERD) is a spectrum of symptoms arising from the laxity of the cardio-oesophageal junction. Anti-reflux surgery is reserved for patients with refractory GERD. Anterior partial fundoplication (Dor) is a regularly performed anti-reflux surgery in Malaysia. We intend to determine the improvement in disease-specific quality of life in our patients after surgery. Methods A multicentre cross-sectional study was conducted to assess patients' improvement in disease-specific quality of life after Dor fundoplication. Ethics approval was obtained from our institutional review board. Patients between the ages of 18 and 65 years who underwent Dor fundoplication within the past five years were assessed using the GERD HRQL as well as the VISICK score via telephone interview. We excluded cases of revision surgery. Results Out of 129 patients screened, 55 patients were included. We found a significant improvement in patients' GERD HRQL score with the pre-operative mean score of 28.3 ± 9.39 and 6.55 ± 8.52 post-operatively, p < 0.01.50.9% of patients reported a VISICK score of 1. However, we noticed a deterioration in the GERD HRQL and VISICK score in patients followed up four years after surgery. This consisted of 25.5% of total patients. Conclusion Dor Fundoplication improves the overall disease-specific quality of life in patients with refractory GERD in the short term period. Recurrence of symptoms causing a deterioration in the quality of life is seen in patients followed up beyond four years of index surgery.
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Dib VRM, Ramos AC, Kawahara NT, Campos JM, Marchesini JC, Galvão-Neto M, Guimarães AGDP, Picanço-Junior AP, Domene CE. Does weight gain, throughout 15 years follow-up after Nissen laparoscopic fundoplication, compromise reflux symptoms control? ACTA ACUST UNITED AC 2020; 33:e1488. [PMID: 32428135 PMCID: PMC7236326 DOI: 10.1590/0102-672020190001e1488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 01/14/2020] [Indexed: 12/12/2022]
Abstract
Background:
Gastroesophageal reflux disease is defined by the abnormal presence of
gastric content in the esophagus, with 10% incidence in the Western
population, being fundoplication one treatment option. Aim:
To evaluate the early (six months) and late (15 years) effectiveness of
laparoscopic fundoplication, the long term postoperative weight changes, as
well as the impact of weight gain in symptoms control. Methods:
Prospective study of 40 subjects who underwent laparoscopic Nissen’s
fundoplication. Preoperatively and early postoperatively, clinical,
endoscopic, radiologic, manometric and pHmetric evaluations were carried
out. After 15 years, clinical and endoscopic assessments were carried out
and the results compared with the early ones. The presence or absence of
obesity was stratified in both early and late phases, and its influence in
the long-term results of fundoplication was studied, measuring quality of
life according to the Visick criteria. Results:
The mean preoperative ages, weight, and body mass index were respectively,
51 years, 69.67 kg and 25.68 kg/m2. The intraoperative and
postoperative complications rates were 12.5% and 15%, without mortality. In
the early postoperative period the symptoms were well controlled, hernias
and esophagitis disappeared, the lower esophageal sphincter had functional
improvement, and pHmetry parameters normalized. In the late follow-up 29
subjects were assessed. During this period there was adequate clinical
control of reflux regardless of weight gain. In both time periods Visick
criteria improved. Conclusion:
Fundoplication was safe and effective in early and late periods. There was
late weight gain, which did not influence effective symptoms control.
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Bramhall SR, Mourad MM. Wrap choice during fundoplication. World J Gastroenterol 2019; 25:6876-6879. [PMID: 31908391 PMCID: PMC6938727 DOI: 10.3748/wjg.v25.i48.6876] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 12/03/2019] [Accepted: 12/22/2019] [Indexed: 02/06/2023] Open
Abstract
Gastro-oesphageal reflux disease is an increasing health burden. The mainstay of treatment has conventionally been medical therapy but since the introduction of laparoscopic surgery laparoscopic anti-reflux surgery has been increasingly used for intractable symptoms or in patients unwilling to take long term medication. The Nissen 360 degree wrap has traditionally been considered the gold standard operation but can be associated with significant complications. These complications include “gas bloat” and dysphagia and can occur relatively frequently. Various modifications have been described to the original operation and some of these have been described. In addition alternative wraps have been described which seem to have a reduced incidence of complications associated with their use. This editorial discusses the various types of wrap that can be performed and the minimum requirements of the surgical technique. The evidence from a recent meta-analysis of the randomised data has suggested that an anterior wrap is associated with a lower rate of complications and gives just as good control of reflux symptoms. The advantages and disadvantages of an anterior wrap are discussed. The lack of long term follow up data concerns some practitioners and at the moment the choice of wrap carried out still rests with the individual surgeon.
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Affiliation(s)
- Simon R Bramhall
- Department of Surgery, The County Hospital, Hereford HR1 2ER, United Kingdom
| | - Moustafa M Mourad
- Department of Surgery, Worcester Royal Infirmary, Worcester WR5 1DD, United Kingdom
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Hajibandeh S, Hajibandeh S, Pugh M, Winters D, Hobbs N, Tarazi M, Panda N, Dalmia S, Mansour M, Malik S. Impact of Toupet Versus Nissen Fundoplication on Dysphagia in Patients With Gastroesophageal Reflux Disease and Associated Preoperative Esophageal Dysmotility: A Systematic Review and Meta-Analysis. Surg Innov 2018; 25:1553350618799549. [PMID: 30205785 DOI: 10.1177/1553350618799549] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Controversy exists regarding the best surgical approach for the management of gastroesophageal reflux disease (GORD) and associated preoperative esophageal dysmotility. Our aim was to conduct a systematic review and meta-analysis to compare the outcomes of Toupet fundoplication (TF) and Nissen fundoplication (NF) in patients with GORD and coexistent preoperative esophageal dysmotility. METHODS We conducted a systematic search of electronic information sources, including MEDLINE, EMBASE, CINAHL, CENTRAL, ClinicalTrials.gov , and bibliographic reference lists. We applied a combination of free text search and controlled vocabulary search adapted to thesaurus headings, search operators, and limits in each of the above-mentioned databases. Postoperative dysphagia and improvement in dysphagia were primary outcome parameters. RESULTS We identified 3 randomized controlled trials and 1 observational study reporting a total of 220 patients, of whom 126 underwent TF and the remaining 94 patients had NF. Despite the existence of significantly higher preoperative dysphagia in the TF group (29.3% vs 4.2%, P = .05), TF was associated with significantly lower postoperative dysphagia (odds ratio [OR] = 0.31, P = .002) with low between-study heterogeneity ( I2 = 11%, P = .34), and significantly higher improved dysphagia (OR = 10.32, P < .0001) with moderate between-study heterogeneity ( I2 = 31%, P = .23) compared with NF. CONCLUSION TF may be associated with significantly lower postoperative dysphagia than NF in patients with GORD and associated preoperative esophageal dysmotility. However, no definite conclusions can be drawn as the best available evidence comes mainly from a limited number of heterogeneous randomized controlled trials. Future studies are encouraged to include patients with similar preoperative dysphagia status and report the outcomes with respect to recurrence of acid reflux symptoms.
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Affiliation(s)
- Shahin Hajibandeh
- 1 North Manchester General Hospital, Manchester, UK
- 2 Stepping Hill Hospital, Stockport, UK
| | | | | | | | | | - Munir Tarazi
- 1 North Manchester General Hospital, Manchester, UK
| | | | | | | | - Sohail Malik
- 1 North Manchester General Hospital, Manchester, UK
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Du X, Wu JM, Hu ZW, Wang F, Wang ZG, Zhang C, Yan C, Chen MP. Laparoscopic Nissen (total) versus anterior 180° fundoplication for gastro-esophageal reflux disease: A meta-analysis and systematic review. Medicine (Baltimore) 2017; 96:e8085. [PMID: 28906412 PMCID: PMC5604681 DOI: 10.1097/md.0000000000008085] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Laparoscopic Nissen fundoplication (LNF) has been the gold standard for the surgical management of Gastro-esophageal reflux disease (GERD). Laparoscopic anterior 180° fundoplication (180° LAF) is reported to reduce the incidence of postoperative complications while obtaining similar control of reflux. The present meta-analysis was conducted to confirm the value of the 2 techniques. METHODS PubMed, Medline, Embase, Cochrane Library, Springerlink, and China National Knowledge Infrastructure Platform databases were searched for randomized controlled trials (RCTs) comparing LNF and 180° LAF. Data regarding the benefits and adverse results of 2 techniques were extracted and compared using a meta-analysis. RESULTS Six eligible RCTs comparing LNF (n = 266) and 180° LAF (n = 265) were identified. There were no significant differences between LNF and 180° LAF with regard to operating time, perioperative complications, length of hospital stay, patient satisfaction, willingness to undergo surgery again, quality of life, postoperative heartburn, proton pump inhibitor (PPI) use, postoperative DeMeester scores, postoperative lower esophageal sphincter (LES) pressure, postoperative gas-bloating, unable to belch, diarrhea, or overall reoperation. LNF was associated with a higher prevalence of postoperative dysphagia compared with 180° LAF, while 180° LAF was followed by more reoperation for recurrent reflux symptoms. CONCLUSION LNF and 180° LAF are equally effective in controlling reflux symptoms and obtain a comparable prevalence of patient satisfaction. 180° LAF can reduce the incidence of postoperative dysphagia while this is offset by a higher risk of reoperation for recurrent symptoms. The risk of recurrent symptoms should need to be balanced against the risk of dysphagia when surgeons choose surgical procedures for each individual with GERD.
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Affiliation(s)
- Xing Du
- Department of Vascular Surgery, Xuan Wu Hospital, Capital Medical University
| | - Ji-Min Wu
- Department of Gastroesophageal Reflux Disease, PLA Rocket Force General Hospital
| | - Zhi-Wei Hu
- Department of Gastroesophageal Reflux Disease, PLA Rocket Force General Hospital
| | - Feng Wang
- Department of Gastroesophageal Reflux Disease, PLA Rocket Force General Hospital
| | - Zhong-Gao Wang
- Department of Vascular Surgery, Xuan Wu Hospital, Capital Medical University
| | - Chao Zhang
- Department of General Surgery, Xuan Wu Hospital, Capital Medical University, Beijing, China
| | - Chao Yan
- Department of Vascular Surgery, Xuan Wu Hospital, Capital Medical University
| | - Mei-Ping Chen
- Department of Gastroesophageal Reflux Disease, PLA Rocket Force General Hospital
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Memon MA, Subramanya MS, Hossain MB, Yunus RM, Khan S, Memon B. Laparoscopic anterior versus posterior fundoplication for gastro-esophageal reflux disease: a meta-analysis and systematic review. World J Surg 2015; 39:981-96. [PMID: 25446479 DOI: 10.1007/s00268-014-2889-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Although laparoscopic posterior fundoplication (LPF) i.e., Nissen or Toupet have the proven efficacy for controlling gastro-esophageal reflux surgically, there remain problems with postoperative dysphagia and gas bloat syndrome. To decrease some of these postoperative complications, laparoscopic anterior fundoplication (LAF) was introduced. The aim of this study was to conduct a meta-analysis and systematic review of randomized controlled trials (RCTs) to investigate the merits and drawbacks of LPF versus LAF for the treatment of gastro-esophageal reflux disease (GERD). DATA SOURCES, STUDY SELECTION, AND REVIEW METHODS A search of Medline, Embase, Science Citation Index, Current Contents, PubMed, ISI Web of Science, and the Cochrane Database identified all RCTs comparing different types of LPF and LAF published in the English Language between 1990 and 2013. The meta-analysis was prepared in accordance with the Preferred Reporting Items for Systematic reviews and Meta-analyses (PRISMA) statement. Data was extracted and analyzed on ten variables which include dysphagia score, heartburn rate, redo operative rate, operative time, overall complications, rate of conversion to open, Visick grading of satisfaction, overall satisfaction, length of hospital stay, and postoperative 24-h pH scores. DATA SYNTHESIS Nine trials totaling 840 patients (anterior = 425, posterior = 415) were analyzed. There was a significant reduction in the odds ratio for dysphagia in the LAF group compared to the LPF group. Conversely, significant reduction in the odds ratio for heartburn was observed for LPF compared to LAF. Comparable effects were noted for both groups for other variables which include redo surgery, operating time, overall complications, conversion rate, Visick's grading, patients' satisfaction, length of hospital stay, and postoperative 24-h pH scores. CONCLUSIONS Based on this meta-analysis, LPF compared to LAF is associated with significant reduction in heartburn at the expense of higher dysphagia rate on a short- and medium-term basis. We therefore conclude that LPF is a better alternative to LAF for controlling GERD symptoms.
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Affiliation(s)
- Muhammed Ashraf Memon
- Sunnybank Obesity Centre, Suite 9, McCullough Centre, 259 McCullough Street, Sunnybank, QLD, 4109, Australia,
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One- and ten-year outcome of laparoscopic anterior 120° versus total fundoplication: a double-blind, randomized multicenter study. Surg Endosc 2015; 30:168-77. [PMID: 25829064 DOI: 10.1007/s00464-015-4177-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 03/19/2015] [Indexed: 12/31/2022]
Abstract
BACKGROUND Nissen fundoplication is an effective treatment for gastroesophageal reflux disease (GERD) but can cause adverse effects like flatulence and dysphagia. The aim was to compare laparoscopic anterior 120° fundoplication (APF) to total fundoplication (Nissen) concerning flatulence and other adverse effects, in a randomized blinded study. METHODS Seventy-two patients were randomized to APF (n = 36) or Nissen (n = 36). Gastroscopy, 24-h pH monitoring and evaluation for symptoms and quality of life using questionnaires (GSRS, PGWB and 7-graded Likert scales) were performed preoperatively, at 1 and 10 years postoperatively. Patients and the researchers were blinded to operative method. RESULTS When entering the study, most patients had mild-moderate reflux disease according to the symptom score, the 24-h pH measurements, and frequency and grade of esophagitis. At 1-year (n = 68) flatulence, dysphagia, heartburn and acid regurgitation did not differ between groups. More patients could belch (p = 0.005), and pH monitoring showed a higher time with pH < 4 in the APF group (p = 0.006). At 10 years (n = 61), the APF group reported less dysphagia (p < 0.001), more heartburn (p = 0.019) and more patients could belch (p = 0.012) and vomit (p < 0.001) compared to the Nissen. No difference remained at 10 years in pH monitoring (n = 23) between groups. Symptoms of heartburn and acid regurgitation were less than preoperatively in both groups (p < 0.001). No revisional operations were performed. CONCLUSIONS Both procedures offer good long-term control of reflux symptom, with modest post-fundoplication symptoms. Anterior 120° fundoplication results in less dysphagia, better ability to belch and vomit than total fundoplication at 10-year follow-up. The results suggest that APF could be an alternative to Nissen fundoplication in the surgical treatment of mild-moderate GERD.
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Ciorba A, Bianchini C, Zuolo M, Feo CV. Upper aerodigestive tract disorders and gastro-oesophageal reflux disease. World J Clin Cases 2015; 3:102-11. [PMID: 25685756 PMCID: PMC4317603 DOI: 10.12998/wjcc.v3.i2.102] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2014] [Revised: 09/20/2014] [Accepted: 10/28/2014] [Indexed: 02/05/2023] Open
Abstract
A wide variety of symptoms and diseases of the upper aerodigestive tract are associated to gastro-oesophageal reflux disease (GORD). These disorders comprise a large variety of conditions such as asthma, chronic otitis media and sinusitis, chronic cough, and laryngeal disorders including paroxysmal laryngospasm. Laryngo-pharyngeal reflux disease is an extraoesophageal variant of GORD that can affect the larynx and pharynx. Despite numerous research efforts, the diagnosis of laryngopharyngeal reflux often remains elusive, unproven and controversial, and its treatment is then still empiric. Aim of this paper is to review the current literature on upper aerodigestive tract disorders in relation to pathologic gastro-oesophageal reflux, focusing in particular on the pathophysiology base and results of the surgical treatment of GORD.
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11
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Thompson SK, Watson DI. What is the Best Anti-Reflux Operation? All Fundoplications are Not Created Equal. World J Surg 2015; 39:997-9. [DOI: 10.1007/s00268-015-3015-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Abstract
BACKGROUND There are few published reports on the outcomes of ≥ 10 years after a laparoscopic floppy Nissen fundoplication (LFNF). MATERIALS AND METHODS From April 1994 to January 2012, 567 patients underwent LFNF and the outcomes of 211 cases were determined (from April 1994 to October 2000). RESULTS Outcomes at ≥ 11 years after surgery was available for 178 patients (84.3%) of which 167 (93.8%) had no heartburn or mild heartburn, 8 (4.5%) had moderate heartburn, and 3 had (1.7%) severe heartburn. Dysphagia was nonexistent or mild in 153 (85.9%), whereas the remaining 14.1% presented moderate to severe symptoms. Reports of 69.1% patients showed none or mild symptoms of abdominal bloating, that of 23% patients showed moderate discomfort, and reports of 7.8% showed severe bloating. Satisfaction score was 8.6 (of 10). A further surgical procedure was required for 7 patients (3.9%): 4 for recurrent reflux and 3 for dysphagia (2 for a tight wrap and 1 for a tight esophageal hiatus). Postoperative dysphagia sufficient for an endoscopic dilatation was observed in 4 patients (2.3%), where 3 were successfully managed with a single dilatation procedure and the last patient underwent several dilatations before adequate swallowing. CONCLUSION LFNF is an effective long-term treatment for gastroesophageal reflux disease, yielding similar results to open fundoplication.
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13
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Gutschow CA, Hölscher AH. Surgical treatment of gastroesophageal reflux disease. Langenbecks Arch Surg 2012; 398:661-7. [PMID: 22526414 DOI: 10.1007/s00423-012-0952-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2012] [Accepted: 03/22/2012] [Indexed: 01/11/2023]
Abstract
BACKGROUND Gastroesophageal reflux disease is by far the most prevalent disorder of the foregut. For a long time during the twentieth century, surgical therapy was the mainstay of treatment and the only chance for cure for patients with severe symptoms. Later, after introduction of proton pump inhibitor therapy in the early 1990 s, surgical therapy was considered widely a second choice option due to its potential morbidity and side effects. More recently, however, there is growing evidence that long-term antisecretory therapy might be associated to a number of adverse effects such as osteoporosis and increased risk of cardiovascular events. This is the rationale why interventional and surgical options are coming back into focus. PURPOSE The purpose of this review is to analyze and to discuss the current spectrum of surgical therapy of gastroesophageal reflux disease.
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Affiliation(s)
- Christian A Gutschow
- Department of General, Visceral, and Cancer Surgery, University of Cologne, Kerpener Strasse 62, 50931, Cologne, Germany.
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Stelzner F, Stelzner M. Manometry data support a novel concept of the lower esophageal sphincter system. Langenbecks Arch Surg 2010; 395:1083-91. [DOI: 10.1007/s00423-010-0662-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2010] [Accepted: 06/10/2010] [Indexed: 10/19/2022]
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Meta-analysis of randomized clinical trials comparing open and laparoscopic anti-reflux surgery. Am J Gastroenterol 2009; 104:1548-61; quiz 1547, 1562. [PMID: 19491872 DOI: 10.1038/ajg.2009.176] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
OBJECTIVES The aim of this study was to conduct a meta-analysis of randomized evidence to determine the relative merits of laparoscopic anti-reflux surgery (LARS) and open anti-reflux surgery (OARS) for proven gastro-esophageal reflux disease (GERD). METHODS A search of the Medline, Embase, Science Citation Index, Current Contents, and PubMed databases identified all randomized clinical trials that compared LARS and OARS and that were published in the English language between 1990 and 2007. A meta-analysis was carried out in accordance with the QUOROM (Quality of Reporting of Meta-Analyses) statement. The six outcome variables analyzed were operating time, hospital stay, return to normal activity, perioperative complications, treatment failure, and requirement for further surgery. Random-effects meta-analyses were carried out using odds ratios (ORs) and weighted mean differences (WMDs). RESULTS Twelve trials were considered suitable for the meta-analysis. A total of 503 patients underwent OARS and 533 had LARS. For three of the six outcomes, the summary point estimates favored LARS over OARS. There was a significant reduction of 2.68 days in the duration of hospital stay for the LARS group compared with that for the OARS group (WMD: -2.68, 95% confidence interval (CI): -3.54 to -1.81; P<0.0001), a significant reduction of 7.75 days in return to normal activity for the LARS group compared with that for the OARS group (WMD: -7.75, 95% CI: -14.37 to -1.14; P=0.0216), and finally, there was a statistically significant reduction of 65% in the relative odds of complication rates for the LARS group compared with that for the OARS group (OR: 0.35, 95% CI: 0.16-0.75; P=0.0072). The duration of operating time was significantly longer (39.02 min) in the LARS group (WMD: 39.02, 95% CI: 17.99-60.05; P=0.0003). Treatment failure rates were comparable between the two groups (OR: 1.39, 95% CI: 0.71-2.72; P=0.3423). Despite this, the requirement for further surgery was significantly higher in the LARS group (OR: 1.79, 95% CI: 1.00-3.22; P=0.05). CONCLUSIONS On the basis of this meta-analysis, the authors conclude that LARS is an effective and safe alternative to OARS for the treatment of proven GERD. LARS enables a faster convalescence and return to productive activity, with a reduced risk of complications and a similar treatment outcome, than an open approach. However, there is a significantly higher rate of re-operation (79%) in the LARS group.
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Gockel I, Heintz A, Tong Trinh T, Domeyer M, Dahmen A, Junginger T. Laparoscopic Anterior Semifundoplication in Patients with Intrathoracic Stomach. Am Surg 2008. [DOI: 10.1177/000313480807400104] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The laparoscopic management of the intrathoracic stomach is still controversial. Laparoscopic semifundoplication in gastroesophageal reflux disease results in effective long-term reflux control and is, as compared with 360° Nissen fundoplication, associated with less frequent side effects such as dysphagia and gas bloat syndrome. The aim of our study was to evaluate the results of laparoscopic anterior semifundoplication in patients with intrathoracic stomach. Enrolled in this study are 19 patients (67.1 years of age; range, 37.5–83.7 years) with intrathoracic stomach undergoing laparoscopic anterior semifundoplication and a minimal follow up of 5 months postoperatively. The study covers the interval between August 1999 and March 2006. Including criterion was a minimum percentage of herniated intrathoracic stomach of 33 per cent. A standardized questionnaire was used for follow up and the modified symptomatic DeMeester score (0–9) was assessed. The median percentage of herniated stomach in the chest was 87.5 per cent (range, 33–100%). Seven patients revealed organo-axial volvulus of the stomach. Duration of preoperative symptoms was 24 months (range, 1–266 months) with a median follow up of 18 months (range, 5–76 months) postoperatively. The modified symptomatic DeMeester score was 0 (0–3). Thirteen of 19 patients were on no postoperative proton pump inhibitor medication. One patient had anatomic recurrence on late follow up at 27 months. The overall contentment with the surgical treatment on an analog scale from 0 to 10 was a median of 9. Although laparoscopic anterior semifundoplication yields satisfactory symptomatic results in patients with intrathoracic stomach, the incidence of failures and anatomical recurrences is higher than expected from subjective data. Prospective, randomized long-term studies are essential to gain further information about the “ideal” type of laparoscopic repair in large hiatal hernia with intrathoracic stomach.
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Affiliation(s)
- Ines Gockel
- Departments of General and Abdominal Surgery, Johannes Gutenberg-University of Mainz, Mainz, Germany
| | - Achim Heintz
- Departments of General and Abdominal Surgery, Johannes Gutenberg-University of Mainz, Mainz, Germany
| | - Tran Tong Trinh
- Departments of General and Abdominal Surgery, Johannes Gutenberg-University of Mainz, Mainz, Germany
| | - Mario Domeyer
- Departments of General and Abdominal Surgery, Johannes Gutenberg-University of Mainz, Mainz, Germany
| | - Anja Dahmen
- Departments of Diagnostic and Interventional Radiology, Johannes Gutenberg-University of Mainz, Mainz, Germany
| | - Theodor Junginger
- Departments of General and Abdominal Surgery, Johannes Gutenberg-University of Mainz, Mainz, Germany
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Laparoscopic fundoplication: Nissen versus Toupet two-year outcome of a prospective randomized study of 200 patients regarding preoperative esophageal motility. Surg Endosc 2007; 22:21-30. [PMID: 18027055 DOI: 10.1007/s00464-007-9546-8] [Citation(s) in RCA: 103] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2006] [Revised: 05/08/2007] [Accepted: 06/01/2007] [Indexed: 12/18/2022]
Abstract
OBJECTIVE To determine the influence of preoperative esophageal motility on clinical and objective outcome of the Toupet or Nissen fundoplication and to evaluate the success rate of these procedures. Nissen fundoplication (360 degrees ) is the standard operation in the surgical management of gastroesophageal reflux disease (GERD). In order to avoid postoperative dysphagia it has been proposed to tailor antireflux surgery according to pre-existing esophageal motility. Postoperative dysphagia is thought to occur more commonly in patients with esophageal dysmotility and it has been recommended to use the Toupet procedure (270 degrees ) in these patients. We performed a randomized trial to evaluate this tailored concept and to compare the two operative techniques concerning reflux control and complication rate (dysphagia). METHODS 200 patients with GERD were included in a prospective, randomized study. After preoperative examinations (clinical interview, endoscopy, 24-hour pH-metry and esophageal manometry) 100 patients underwent either a laparoscopic Nissen procedure (50 with and 50 without motility disorders), or Toupet (50 with and 50 without motility disorders). Postoperative follow-up after two years included clinical interview, endoscopy, 24-hour pH-metry, and esophageal manometry. RESULTS After two years 85% (Nissen) and 85% (Toupet) of patients were satisfied with the operative result. Dysphagia was more frequent following a Nissen fundoplication compared to Toupet (19 vs. 8, p < 0.05) and did not correlate with preoperative motility. Concerning reflux control the Toupet proved to be as good as the Nissen procedure. CONCLUSION Tailoring antireflux surgery according to the esophageal motility is not indicated, as motility disorders are not correlated with postoperative dysphagia. The Toupet procedure is the better operation as it has a lower rate of dysphagia and is as good as the Nissen fundoplication in controlling reflux.
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Saedon M, Gourgiotis S, Germanos S. Is there a changing trend in surgical management of gastroesophageal reflux disease in children? World J Gastroenterol 2007; 13:4417-22. [PMID: 17724795 PMCID: PMC4611572 DOI: 10.3748/wjg.v13.i33.4417] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Gastroesophageal reflux disease (GORD) is a pathological process in infants manifesting as poor weight gain, signs of esophagitis, persistent respiratory symptoms and changes in neurobehaviour. It is currently estimated that approximately one in every 350 children will experience severe symptomatic gastroesophageal reflux necessitating surgical treatment. Surgery for GORD is currently one of the common major operations performed in infants and children. Most of the studies found favour laparoscopic approach which has surpassed open antireflux surgery as the gold standard of surgical management for GORD. However, it must be interpreted with caution due to the limitation of the studies, especially the small number of subject included in these studies. This review reports the changing trends in the surgical treatment of GORD in children.
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Affiliation(s)
- Mahmud Saedon
- Department of General Surgery, Leighton Hospital, Cheshire, UK
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Wagener S, Sudhakaran N, Cusick E. Watson fundoplication in children: a comparative study with Nissen fundoplication. J Pediatr Surg 2007; 42:1098-102. [PMID: 17560228 DOI: 10.1016/j.jpedsurg.2007.01.047] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Nissen fundoplication is the gold standard antireflux procedure in children. In 1996, one pediatric surgeon adopted the anterior fundoplication described by Watson in 1991. This procedure is reported to achieve good reflux control while permitting burping, active vomiting, and reducing gas bloat. An audit project was undertaken to compare the clinical outcome of children undergoing Nissen and Watson fundoplication. METHODS The case notes of 144 children undergoing open fundoplication between February 1995 and February 2002 were reviewed retrospectively. RESULTS Results of 72 boys and 59 girls comprising 76 Nissen and 55 Watson fundoplications were assessed. In each group, one death occurred within 1 month of operation. Chest infections occurred in 6.6% (Nissen) and 1.8% (Watson), and wound infections in 2.6% and 1.8%, respectively. Dysphagia was recorded in 7.9% of Nissen and 1.8% of Watson fundoplications. Follow-up data were analyzed in 70 children with Nissen and 48 children with Watson fundoplication. When overall clinical outcome was assessed for those patients with a minimum follow-up of 1 year, 85.1% Nissen and 88.2% Watson were judged good/excellent; 14.9% Nissen and 11.8% Watson were judged poor/bad. CONCLUSION Watson fundoplication can safely be performed in children with comparable clinical outcome to Nissen fundoplication.
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Affiliation(s)
- S Wagener
- Bristol Royal Hospital for Children, UK
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Gockel I, Heintz A, Domeyer M, Kneist W, Trinh TT, Junginger T. [Nonerosive and erosive gastroesophageal reflux disease. Long-term results of laparoscopic anterior semifundoplication]. Chirurg 2007; 78:35-9. [PMID: 17106712 DOI: 10.1007/s00104-006-1246-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND The aim of this study was to evaluate long-term results of laparoscopic anterior semifundoplication in patients with nonerosive (NERD) and erosive (ERD) gastroesophageal reflux disease. PATIENTS AND METHODS The study includes the period from May 1997 to July 2005. Upper gastrointestinal endoscopy was performed in all 190 patients. The severity of reflux esophagitis was classified according to Savary and Miller (grades I-IV). A standardized questionnaire was used for follow-up, and the modified symptomatic DeMeester score was assessed. RESULTS 58.5 years of age (range 27-80), patients with nonerosive reflux disease (n=83) were significantly older than those with erosive reflux disease (n=107) (48 years range 15-84) (p=0.0001). Patients with NERD had a lower modified symptomatic DeMeester score postoperatively of 0 (range 0-4) than patients with ERD, of 1 (range 0-5), though without statistical significance (p=0.151). CONCLUSION Laparoscopic anterior semifundoplication leads to comparable symptomatic long-term results in both NERD and ERD. Anterior semifundoplication is a good therapeutic option for selected patients with persistent reflux-associated symptoms and endoscopically negative esophagitis.
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Affiliation(s)
- I Gockel
- Klinik für Allgemein- und Abdominalchirurgie, Johannes-Gutenberg-Universität, Langenbeckstrasse 1, 55131 Mainz, Germany.
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Mathew G, Watson DI, Myers JC, Holloway RH, Jamieson GG. Oesophageal motility before and after laparoscopic Nissen fundoplication. Br J Surg 2005. [DOI: 10.1111/j.1365-2168.1997.02812.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Hüttl TP, Hohle M, Wichmann MW, Jauch KW, Meyer G. Techniques and results of laparoscopic antireflux surgery in Germany. Surg Endosc 2005; 19:1579-87. [PMID: 16211438 DOI: 10.1007/s00464-005-0163-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2005] [Accepted: 05/22/2005] [Indexed: 01/18/2023]
Abstract
BACKGROUND This study aimed to evaluate the development and outcomes of laparoscopic antireflux surgery in Germany using a nationwide representative survey. METHODS A written questionnaire including 34 detailed questions and 288 structured items about diagnostic and therapeutic approaches, number of procedures, complications, and mortality was sent to 546 randomly selected German surgeons (33% of the registered general surgeons) at the end of 2000. RESULTS The response rate was 72%, and a total of 2,540 antireflux procedures were reported. According to the survey, 81% of all procedures were performed laparoscopically, and 0.1% were performed thoracoscopically. As reported, 65% were total fundoplications, 31% were partial fundoplications, and 4% were other procedures. Of the surgeons who had experience with laparoscopic antireflux techniques (29%), 71% preferred a 5-trocar technique, and 91% used the Harmonic Scalpel for dissection. There were significant technical variations among the surgical procedures (e.g., use and size of the bougie, length of the wrap, additional gastropexy, fixation of the wrap). The overall complication rate for laparoscopic fundoplication was 7.7% (5.7% surgical and 2% nonsurgical complications), including rates of 0.6% for esophageal perforations and 0.6% for splenic lesions. The conversion rate was 2.9%; the reoperation rate was 1.6%; and the overall hospital mortality rate was 0.13%. The authors observed a striking learning curve difference in complication rates between hospitals performing fewer than 10 laparoscopic antireflux techniques annually and those performing more than 10 fundoplications per year (14% vs 5.1%, p < 0.001). Long-term dysphagia and interventions occasioned by dysphagia occurred significantly more often after total fundoplications than after partial fundoplications (6.6% vs 2.4%; p < 0.001). Similar findings were reported for Nissen versus floppy Nissen procedures. The overall failure rate, however, was similar for both groups (Nissen 8.7%; partial 9%, difference not significant). CONCLUSIONS Until now, no unique laparoscopic antireflux technique has been accepted, and a number of different antireflux procedures with numerous modifications have been reported. The morbidity and mortality rates reported in this article compare very well with those in the literature, and 1-year-follow-up results are promising.
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Affiliation(s)
- T P Hüttl
- Department of Surgery, Klinikum Grosshadern, University of Munich, Marchioninistrasse 15, 81366, Munich, Germany.
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Ducrotté P, Leblanc-Louvry I. [Sequelae of sub-mesocolic surgery]. GASTROENTEROLOGIE CLINIQUE ET BIOLOGIQUE 2005; 29:839-45. [PMID: 16294154 DOI: 10.1016/s0399-8320(05)86356-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Affiliation(s)
- Philippe Ducrotté
- Hépato-Gastroentérologie et Nutrition, Polyclinique, 76031 Rouen Cedex
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Baigrie RJ, Cullis SNR, Ndhluni AJ, Cariem A. Randomized double-blind trial of laparoscopic Nissen fundoplication versus anterior partial fundoplication. Br J Surg 2005; 92:819-23. [PMID: 15898129 DOI: 10.1002/bjs.4803] [Citation(s) in RCA: 96] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND This double-blind, randomized study compared outcomes of laparoscopic Nissen total fundoplication and anterior partial fundoplication carried out by a single surgeon in a private practice. METHODS All patients with proven gastro-oesophageal reflux disease, regardless of motility, presenting for laparoscopic antireflux surgery were randomized to either Nissen total or anterior partial fundoplication. Primary outcome measures were dysphagia and abolition of reflux. Secondary outcome measures were Visick scores, bloating, patient satisfaction and reoperation rate. RESULTS Complete follow-up was available for 161 (98.8 per cent) of 163 patients (84 Nissen, 79 anterior). There were no differences in mean heartburn scores between groups. Recurrent reflux was observed in ten patients after anterior fundoplication, but none after the Nissen procedure. Dysphagia scores for both liquids and solids were lower after anterior fundoplication. Four patients had persistent troublesome dysphagia after Nissen fundoplication compared with none after anterior fundoplication. There were no differences between groups in postoperative bloating. The overall reoperation rate at 2 years was 7 per cent, all achieved laparoscopically. CONCLUSION Nissen fundoplication cured reflux in all patients up to 2 years, but 5 per cent required revisional surgery. Recurrent reflux was more common after anterior fundoplication, but dysphagia was rare. Patient satisfaction was excellent in both groups. Revisional laparoscopic surgery was safe and usually successful.
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Affiliation(s)
- R J Baigrie
- Gastrointestinal Units, Kingsbury Hospital, University of Cape Town, South Africa.
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Stewart GD, Watson AJM, Lamb PJ, Lee AJ, Krukowski ZH, Griffin SM, Paterson-Brown S. Comparison of three different procedures for antireflux surgery. Br J Surg 2004; 91:724-9. [PMID: 15164442 DOI: 10.1002/bjs.4556] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Abstract
Background
No long-term comparisons of the various open and laparoscopic antireflux procedures have been undertaken. The aim of this study was to compare symptomatic outcomes of three procedures for antireflux surgery performed at three specialist units.
Methods
Patients undergoing open Nissen fundoplication, laparoscopic Nissen fundoplication and laparoscopic anterior partial fundoplication between December 1993 and February 2001 were identified. Patient outcome was assessed by means of a postal questionnaire. This was a hypothesis-generating study.
Results
Three hundred and fifty-seven patients (80·0 per cent) completed the questionnaire, with no differences in response rate between centres. Overall, a mean of only 7·6 per cent of patients reported a poor outcome. Logistic regression revealed no significant differences amongst the three procedures for any symptoms, after allowing for the effect of time. There was a general increase in the DeMeester score with increasing time from operation. The incidence of revisional reflux surgery was similar in the three groups.
Conclusion
Medium-term symptomatic outcome following all three procedures was similar. There was some recurrence of symptoms of gastro-oesophageal reflux with time for all procedures, suggesting that the effects of surgery diminish with time. The level of experience of the surgeon in a particular operation was more important than the procedure performed.
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Affiliation(s)
- G D Stewart
- Department of Surgery, Royal Infirmary of Edinburgh, Edinburgh, UK
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Hagedorn C, Jönson C, Lönroth H, Ruth M, Thune A, Lundell L. Efficacy of an anterior as compared with a posterior laparoscopic partial fundoplication: results of a randomized, controlled clinical trial. Ann Surg 2003; 238:189-96. [PMID: 12894011 PMCID: PMC1422692 DOI: 10.1097/01.sla.0000080821.08262.53] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE The aim of the study was to compare the efficacy and mechanical consequences of 2 partial fundoplications performed laparoscopically under the framework of a randomized, controlled clinical trial. SUMMARY BACKGROUND DATA Although laparoscopic total fundoplication procedures have proven their effectiveness in the control of gastroesophageal reflux, problems remain with the functional consequences after a supra-competent gastric cardia high-pressure zone. Partial fundoplications have been found to be associated with fewer mechanical side effects. PATIENTS AND METHODS During a 2-year period, 95 patients with gastroesophageal reflux disease were enrolled into a randomized, controlled single-institution clinical trial comparing a partial posterior (Toupét, n = 48) fundoplication and an anterior partial wrap (Watson, n = 47). All patients were assessed postoperatively at predefined time points, and the 12-month follow-up data are presented in terms of clinical results and 24-hour pH monitoring variables. RESULTS Both patient groups were strictly comparable at the time of randomization. All operations were completed laparoscopically, and no serious complications were encountered. During the first postoperative year, a difference regarding the control of reflux symptoms was observed in favor of the posterior fundoplication. Esophageal acid exposure (% time pH <4) was substantially reduced by both operations but to a significantly lower level after a Toupét compared with the Watson partial fundoplication (1.0 +/- 0.3 vs. 5.6 +/- 1.1 mean +/- SEM; p < 0.001). Postfundoplication symptoms were infrequently recorded with no difference between the groups. CONCLUSIONS When performing a laparoscopic partial fundoplication, the posterior modification (Toupét) offers advantages in terms of better reflux control compared with an anterior type (Watson).
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Affiliation(s)
- Cecilia Hagedorn
- Department of Surgery, Sahlgrenska University Hospital, Göteborg, Sweden.
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Díaz de Liaño A, Oteiza F, Ciga MA, Aizcorbe M, Trujillo R, Cobo F. Nonobstructive dysphagia and recovery of motor disorder after antireflux surgery. Am J Surg 2003; 185:103-7. [PMID: 12559437 DOI: 10.1016/s0002-9610(02)01200-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Changes in motor disorder after Nissen 360 degrees surgery were studied based on clinical signs of preoperative nonobstructive dysphagia. MATERIALS AND METHODS Forty-seven patients undergoing Nissen 360 degrees fundoplication for gastroesophageal reflux were studied with pH recording and esophageal manometry before and 1 year after fundoplication. Amplitude of contraction of the distal third of the esophagus (ACDTE) and the presence of primary propulsive waves were studied. RESULTS Fourteen patients had clinical signs of preoperative dysphagia. Of these, 50% had an ACDTE lower than 30 mm Hg, and 71.4% nonpropulsive waves (P <0.05). Forty-three percent and 30%, respectively, of patients with dysphagia recovered ACDTE and the presence of primary propulsive waves 1 year after the procedure, as compared with 66.6% (P <0.05) and 81.8% (P <0.01%) of patients without dysphagia. CONCLUSIONS A correlation was found between preoperative dysphagia and esophageal motility disorders (P <0.05). One year after fundoplication, recovery was significantly higher in patients without preoperative dysphagia.
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Affiliation(s)
- Alvaro Díaz de Liaño
- Department of General and Gastrointestinal Surgery, Hospital Virgen del Camino, Pamplona 31008, Navarre, Spain
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Affiliation(s)
- K H Fuchs
- Chirurgische Universitätsklinik und Poliklinik, Würzburg
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Zornig C, Strate U, Fibbe C, Emmermann A, Layer P. Nissen vs Toupet laparoscopic fundoplication. Surg Endosc 2002; 16:758-66. [PMID: 11997817 DOI: 10.1007/s00464-001-9092-8] [Citation(s) in RCA: 133] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2001] [Accepted: 08/16/2001] [Indexed: 01/20/2023]
Abstract
BACKGROUND Nissen fundoplication (360 degrees ) is the standard operation for the surgical management of gastroesophageal reflux disease (GERD). To avoid postoperative dysphagia, it has been proposed that antireflux surgery be tailored according to the degree of preexisting esophageal motility. Postoperative dysphagia is thought to occur more commonly in patients with esophageal dysmotility and the Toupet procedure (270 degrees ) has been recommended for these patients. We performed a randomized trial to evaluate this tailored concept and to compare the two operative techniques in terms of reflux control and complication rate (dysphagia). Our objective was to determine the impact of preoperative esophageal motility on the clinical and objective outcome, following Toupet vs Nissen fundoplication and to evaluate the success rate of these procedures. METHODS From May 1999 until May 2000, 200 patients with GERD were included in a prospective randomized study. After preoperative examinations (clinical interview, endoscopy, 24-h pH study and esophageal manometry), 100 patients underwent either a laparoscopic Nissen (50 with and 50 without motility disorders), or a Toupet procedure (50 with and 50 without motility disorders). Postoperative follow-up after 4 months included clinical interview, endoscopy, 24-h pH study and esophageal manometry. RESULTS Interviews showed that 88% (Nissen) and 90% (Toupet) of the patients, respectively, were satisfied with the operative result. Dysphagia was more frequent following a Nissen fundoplication than after a Toupet (30 vs 11, p <0.001) and did not correlate with preoperative motility. In terms of reflux control, the Toupet proved to be as effective as the Nissen procedure. CONCLUSION Tailoring antireflux surgery to esophageal motility is not indicated, since motility disorders are not correlated with postoperative dysphagia. The Toupet procedure is the better operation because it has a lower rate of dysphagia and is as effective as the Nissen fundoplication in controlling reflux.
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Affiliation(s)
- C Zornig
- Department of General Surgery, Israelitisches Krankenhaus, Orchideenstieg 14, 22297 Hamburg, Germany
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Jackson PG, Gleiber MA, Askari R, Evans SR. Predictors of outcome in 100 consecutive laparoscopic antireflux procedures. Am J Surg 2001; 181:231-5. [PMID: 11376577 DOI: 10.1016/s0002-9610(01)00553-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
BACKGROUND Published success rates for surgical intervention in gastroesophageal reflux disease exceed 90%. The goal of this study was to determine if any preoperative factors could accurately predict postoperative symptom relief. METHODS One hundred consecutive patients undergoing laparoscopic antireflux surgery completed a detailed preoperative questionnaire, and underwent endoscopy, manometry, and 24-hour esophageal pH monitoring. Two surgeons performed all procedures in a standardized fashion. At least 2 months following operative intervention, a single interviewer, blinded to all preoperative information and procedure performed, recorded Visick and Gastroesophageal Reflux Disease-Health-Related Quality of Life scores for all patients. All follow-up was performed within 3 years of antireflux procedure. RESULTS The surgical success rate, as defined by Visick scores of 1-2, was 91%. Three variables were predictive of postoperative success: age <50, presence of typical symptoms at presentation, and complete resolution of symptoms with acid suppression therapy. CONCLUSION The study shows that surgical strategies can reproducibly control gastroesophageal reflux disease symptoms in more than 90% of patients. The optimal surgical candidate is a patient under the age of 50 whose typical symptoms completely resolve with acid suppression therapy.
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Affiliation(s)
- P G Jackson
- Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
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Watson A. An emerging trend in anti-reflux surgery? ANZ J Surg 2001; 71:252. [PMID: 11355736 DOI: 10.1046/j.1440-1622.2001.2091a.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Abstract
BACKGROUND Dysphagia is experienced by many patients after antireflux surgery. This literature review examines factors associated with the development, prediction and management of postoperative dysphagia. METHODS Published studies examining issues related to dysphagia, gastro-oesophageal reflux and fundoplication were reviewed. RESULTS Postoperative dysphagia is usually temporary but proves troublesome for 5--10 per cent of patients. Technical modifications, such as a partial wrap, division of short gastric vessels and method of hiatal closure, have not conclusively reduced its incidence. There is no reliable preoperative test to predict dysphagia. CONCLUSION It is uncertain whether postoperative dysphagia arises from patient predilection or is largely a consequence of mechanical changes created by fundoplication. Anatomical errors account for a significant proportion of patients referred for correction of dysphagia but these are uncommon in large single-institution studies. Abnormal manometry cannot predict dysphagia and, on current evidence, 'tailoring' the operation does not prevent its occurrence.
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Affiliation(s)
- V L Wills
- St George Upper Gastrointestinal Surgical Unit, 1 South Street, Kogarah, 2217 New South Wales, Australia
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Topart P, Vandenbroucke F, Robaszkiewicz M, Lozac'h P. Prognostic value of the lower esophageal sphincter gradient and acid exposure in the follow-up of antireflux operations. Dis Esophagus 2000; 12:22-7. [PMID: 10941856 DOI: 10.1046/j.1442-2050.1999.00012.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Eighty-eight consecutive patients with antireflux fundoplication had manometry and pH recording pre- and post-operatively at 6 months and 1, 3 and 5 years for a mean follow-up of 30.6 months. Failure occurred in nine patients (11.4%). For the whole group of patients, surgery produced a significant increase in the lower esophageal sphincter (LES) pressure gradient from 9.5 +/- 6.3 to 14.6 +/- 6.7 mmHg and a significant decrease in acid exposure from 20.6% +/- 17.6% to 5.5% +/- 8.8% at 6 months. There was a similar change in pressure (p < 0.0005) and pH (p < 0.002) in the successful but not in the failure group. Over time, the values remained stable in both groups. Post-operative LES pressure was significantly correlated with the outcome at 6 months (p < 0.02), and the pH was inversely correlated at 5 years (p < 0.039). This study confirms the early predictive value of the post-operative LES pressure. Esophageal acid exposure remains a reliable marker of the outcome. However, recurrences remain unexplained by LES pressure measurement and long-term follow-up using manometry and pH recording does not bring additional valuable data.
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Affiliation(s)
- P Topart
- Service de Chirurgie Viscérale et Endocrinienne, Centre Hospitalier Universitaire, Brest, France.
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Windsor JA, Yellapu S. Laparoscopic anti-reflux surgery in New Zealand: a trend towards partial fundoplication. THE AUSTRALIAN AND NEW ZEALAND JOURNAL OF SURGERY 2000; 70:184-7. [PMID: 10765900 DOI: 10.1046/j.1440-1622.2000.01782.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND The advent of laparoscopic anti-reflux surgery has generated considerable debate regarding the best technique. The present study was undertaken to determine the trends and current technique in laparoscopic anti-reflux surgery in New Zealand. METHODS A confidential nationwide postal survey was sent to all general surgeons in New Zealand; it was repeated after a month, and followed up with a telephone prompt, if necessary. RESULTS Of the 146 questionnaires sent out, 126 were returned (response rate: 86%), and 104 were excluded (no anti-reflux surgery performed (n = 96); surgeon retired (n = 5); paediatric surgeon (n = 3)). The number of operations performed by the 22 (16%) adult general surgeons who had performed laparoscopic anti-reflux surgery increased 4.6 times from 1991 to 1997 (474 open and 1218 laparoscopic operations). The median number of cases per surgeon was 30 (range: 5-300). In 1997 there were 208 (60%) total fundoplications (TF) and 135 (40%) partial fundoplications (PF) performed. Variations in the technique of TF included the Nissen-DeMeester (10 surgeons), the Nissen-Rosetti (nine surgeons), division of short gastric vessels (10 surgeons), and routine cruroplasty (14 surgeons). A PF had never been performed by six surgeons, was preferred by six surgeons, and four other surgeons were performing it more often. Variations in the technique of PF included posterior (12 surgeons) and anterior (four surgeons) forms. CONCLUSION There is significant variation in the technique of laparoscopic anti-reflux surgery in New Zealand. A TF is preferred by 16 surgeons, but there appears to be a trend towards PF among the more experienced surgeons.
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Affiliation(s)
- J A Windsor
- Department of General Surgery, Auckland Hospital, New Zealand.
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Bais JE, Bartelsman JF, Bonjer HJ, Cuesta MA, Go PM, Klinkenberg-Knol EC, van Lanschot JJ, Nadorp JH, Smout AJ, van der Graaf Y, Gooszen HG. Laparoscopic or conventional Nissen fundoplication for gastro-oesophageal reflux disease: randomised clinical trial. The Netherlands Antireflux Surgery Study Group. Lancet 2000; 355:170-4. [PMID: 10675115 DOI: 10.1016/s0140-6736(99)03097-4] [Citation(s) in RCA: 206] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND For the surgical treatment of gastrooesophageal reflux disease (GORD), laparoscopic Nissen fundoplication has largely replaced the open procedure. Retrospective and prospective non-randomised studies have shown similar results after laparoscopic Nissen fundoplication compared with the open procedure. METHODS In a multicentre randomised trial candidates for surgical treatment of GORD were randomly assigned to either laparoscopic or open 360 degrees Nissen fundoplication. Primary endpoints were dysphagia, recurrent GORD, and intrathoracic hernia. Secondary endpoints were effectiveness and quality of life. This planned interim analysis focuses on endpoints and complications and in-hospital costs. FINDINGS At the time of interim analysis, 11 patients in the laparoscopic group and one in the conventional group had reached a primary endpoint (p=0.01; relative risk=8.8, 95% CI 1.2-66.3). This difference was caused mainly by whether or not patients had dysphagia (seven patients in the laparoscopic group and none in the conventional group, p=0.016). INTERPRETATION Although laparoscopic Nissen fundoplication was as effective as the open procedure in controlling reflux, the significantly higher risk of reaching a primary endpoint in the laparoscopic group led us to stop the study.
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Affiliation(s)
- J E Bais
- Department of Surgery, University Medical Center, Utrecht, The Netherlands
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Affiliation(s)
- N J Soper
- Washington University School of Medicine, St Louis, Missouri, USA
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Watson DI, Jamieson GG, Pike GK, Davies N, Richardson M, Devitt PG. Prospective randomized double-blind trial between laparoscopic Nissen fundoplication and anterior partial fundoplication. Br J Surg 1999; 86:123-30. [PMID: 10027375 DOI: 10.1046/j.1365-2168.1999.00969.x] [Citation(s) in RCA: 168] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND In the operative management of gastro-oesophageal reflux, a balance must be achieved between adequate control of reflux and excessive dysphagia. The ideal technique is not known. A randomized study was performed to determine whether laparoscopic anterior fundoplication is associated with a lower incidence of postoperative dysphagia than laparoscopic Nissen fundoplication, while achieving equivalent control of reflux. METHODS Patients presenting for laparoscopic antireflux surgery were randomized to undergo either a Nissen fundoplication (n = 53) or an anterior 180 degrees hemifundoplication (n = 54). Patients were blinded to which procedure had been performed, and follow-up was obtained by a blinded independent investigator. Standardized clinical grading systems were used to assess dysphagia, heartburn and patient satisfaction 1, 3 and 6 months after operation. Objective measurement of lower oesophageal sphincter pressure, oesophageal emptying time, distal oesophageal acid exposure and endoscopic healing of oesophagitis was also performed. RESULTS Operating time was similar for the two procedures (58 min for the Nissen procedure versus 60 min for anterior fundoplication). Resting and residual lower oesophageal sphincter pressures were lower following anterior fundoplication (29 versus 18 mmHg, and 13 versus 6 mmHg), and oesophageal emptying times were faster (92 versus 116 s). Acid exposure times and ability to heal oesophagitis were similar. At 3 months' follow-up clinical outcomes were similar for the two procedures. At 6 months, however, patients who had undergone anterior fundoplication experienced significantly less dysphagia for solid food and were more likely to be satisfied with the clinical outcome. CONCLUSION Laparoscopic anterior fundoplication achieved equivalent control of reflux, more physiological postoperative manometry parameters, and an improved clinical outcome at 6 months. Continued follow-up remains necessary to confirm the long-term efficacy of the partial fundoplication procedure.
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Affiliation(s)
- D I Watson
- The Royal Adelaide Centre for Endoscopic Surgery and University Department of Surgery, Royal Adelaide Hospital, South Australia, Australia
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Abstract
BACKGROUND The recent development of laparoscopic techniques for fundoplication has created renewed interest in surgery for gastro-oesophageal reflux disease, leading to reports of large clinical series from many centres. However, controversy remains about technical aspects of laparoscopic antireflux surgery, with no consensus yet reached about a standard operative technique. It is important, therefore, to reassess critically the results of laparoscopic surgery for reflux disease, so that its current status can be determined. METHODS Published outcome studies for laparoscopic antireflux surgery, as well as selected studies from the era of open antireflux surgery, were reviewed to assess outcomes. RESULTS The results of case series for laparoscopic antireflux surgery with short- and medium-term follow-up, as well as the early results of randomized trials, confirm that this approach reduces the early overall morbidity of surgery for reflux disease. However, certain complications may be more common, for instance paraoesophageal hiatus herniation, pneumothorax and oesophageal perforation, requiring surgeons to use specific strategies which can help to avoid these problems. Published studies and trials do not support the routine or selective application of a posterior partial fundoplication technique or routine division of the short gastric vessels during Nissen fundoplication. CONCLUSION At present, a short loose Nissen fundoplication performed laparoscopically, with or without division of the short gastric vessels, is an appropriate surgical approach for gastro-oesophageal reflux disease. However, long-term outcomes following laparoscopic antireflux surgery will not be available for some years, and must be awaited before the final status of the various laparoscopic techniques can be confirmed.
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Affiliation(s)
- D I Watson
- University Department of Surgery, Royal Adelaide Hospital, South Australia, Australia
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Watson DI, Mathew G, Pike GK, Baigrie RJ, Jamieson GG. Efficacy of anterior, posterior and total fundoplication in an experimental model. Br J Surg 1998; 85:1006-9. [PMID: 9692585 DOI: 10.1046/j.1365-2168.1998.00716.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND This study examined the effect of different types of laparoscopic fundoplication on an incompetent lower oesophageal sphincter to test their effectiveness at preventing gastro-oesophageal reflux in the early postoperative period. METHODS An experimental porcine model was used. Initial oesophageal myotomy ensured an incompetent lower oesophageal sphincter with free reflux of 'intragastric fluid'. Anterior, posterior or total fundoplication was then performed laparoscopically in 15 laboratory pigs (five in each group). Fundoplication competence and efficacy were determined 2 weeks after laparoscopic antireflux surgery by inflating the stomach with liquid through a gastrostomy cannula. Some animals were also studied at 4 and 6 weeks. Lower oesophageal sphincter pressure was determined using a water-perfused oesophageal manometry catheter incorporating a Dent sleeve. RESULTS All three types of fundoplication produced similar increases in postoperative resting lower oesophageal sphincter pressure and restored adequate competence to the gastro-oesophageal junction. CONCLUSION All three variants of laparoscopic fundoplication restore gastro-oesophageal competence in the early postoperative period.
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Affiliation(s)
- D I Watson
- University Department of Surgery, Royal Adelaide Hospital, South Australia, Australia
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40
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Mathew G, Watson DI, Myers JC, Holloway RH, Jamieson GG. Oesophageal motility before and after laparoscopic Nissen fundoplication. Br J Surg 1997. [DOI: 10.1002/bjs.1800841034] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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The British Journal of Surgery digest. Surg Today 1995. [DOI: 10.1007/bf00311450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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