Five-year comprehensive outcomes evaluation in 181 patients after laparoscopic Nissen fundoplication

BACKGROUND: We conducted an objective followup of 181 patients after laparoscopic Nissen fundoplication during a 5-year period after surgery. STUDY DESIGN: Patients underwent 24-hour pH recording, esophageal manometry, and symptom score assessment for six gastroesophageal reflux disease symptoms preoperatively and at 6 months, 2 years, and 5 years after surgery. RESULTS: Laparoscopic fundoplication was associated with a significant (p < 0.0001) increase in lower esophageal sphincter pressure and a significant (p < 0.0001) drop in duration of acid reflux in 24 hours, and symptom score, 6, 24, and 60 months after surgery when compared with preoperative values. Twenty-one patients (12%) have experienced recurrence of reflux-type symptoms, but only six have required repeat surgery. Lower esophageal sphincter tone dropped between 6 months and 5 years after surgery, but was still an effective antireflux barrier. Patient satisfaction with surgery dropped over the 5-year followup but remained high, at 86%, after 5 years. CONCLUSIONS: Laparoscopic Nissen fundoplication remains an effective antireflux procedure at 5 years.     

Five-year subjective and objective results of laparoscopic and conventional Nissen fundoplication: a randomized trial

OBJECTIVE: The purpose of this prospective study was to compare the subjective and objective outcome of laparoscopic (LNF) and conventional Nissen fundoplication (CNF) up to 5 years after surgery as obtained in a multicenter randomized controlled trial. SUMMARY OF BACKGROUND DATA: LNF is regarded as surgical treatment of first choice for refractory gastroesophageal reflux disease by many surgeons based on several short- and mid-term studies. The long-term efficacy of Nissen fundoplication, however, is still questioned as objective data gathered from prospective studies are lacking. METHODS: From 1997 to 1999, 177 patients were randomized to undergo LNF or CNF. Five years after surgery, all patients were requested to fill in questionnaires and to undergo esophageal manometry and 24-hour pH-metry. RESULTS: A total of 148 patients agreed to participate in the follow-up study: 79 patients after LNF and 69 after CNF. Of these, 97 patients (48 LNF, 49 CNF) consented to undergo esophageal manometry and 24-hour pH-metry. At 5 years follow-up, 20 patients had undergone reoperation: 12 after LNF (15%) and 8 after CNF (12%). There was no difference in subjective outcome, with overall satisfaction rates of 88% and 90%, respectively. Total esophageal acid exposure times (pH < 4) were 2.1% +/- 0.5% and 2.0% +/- 0.6%, respectively (P = 0.21). Antisecretory medication was taken daily in 14% and 16%, respectively (P = 0.29). There was no correlation between medication use and acid exposure and indices of symptom-reflux association (symptom index and symptom association probability). No significant differences between subjective and objective results at 3 to 6 months and results obtained at 5 years after surgery were found. CONCLUSIONS: The effects of LNF and CNF on general state of health and objective reflux control are sustained up to 5 years after surgery and the long-term results of LNF and CNF are comparable. A substantial minority of patients in both groups had a second antireflux operation or took antisecretory drugs, although the use of those medications did not appear to be related to abnormal esophageal acid exposure.     

Outcome of laparoscopic Nissen fundoplication in patients with body mass index ≥35

Background To date, few studies have examined the effect of morbid obesity on the outcome of laparoscopic antireflux surgery and results have been conflicting. The aim of this work was to study the outcome of laparoscopic Nissen fundoplication (LNF) in patients with body mass index (BMI) ≥ 35. Methods We prospectively followed 70 patients (15 men, 55 women) with a proven diagnosis of gastroesophageal reflux disease (GERD) and a mean BMI of 38.4 ± 0.5 (range, 35–51) who underwent LNF. All patients underwent 24-h pH study, esophageal manometry, upper gastrointestinal (GI) endoscopy, and GERD symptom score before and 6 months after LNF. Surgical outcomes were compared to those of 70 sequential nonobese patients (BMI < 30) who also underwent LNF. Results LNF was completed laparoscopically in 69 of 70 patients in the morbidly obese (MO) group and in all 70 patients in the normal-weight (NW) group. The mean operative time for the MO group was not significantly longer than that for the NW group (55.9 ± 2.3 min vs 50.0 ± 2.1 min), but the mean length of stay was significantly longer (3.17 ± 0.2 days vs 2.2 ± 0.1 days, p < 0.0001) in the MO group. There was one postoperative complication (a transhiatal herniation of the stomach) in the morbidly obese group. In both patient groups, LNF resulted in a significant increase in lower esophageal sphincter (LES) pressures. This was associated with a significant decrease in percent acid reflux in 24-h testing and a significant improvement in GERD symptom score in both groups, although patients in the MO group had a significantly higher mean reflux symptom score after surgery than did those in the NW group. After a mean follow-up of 41.6 ± 2.9 months, one patient in the MO group required reoperation and one proton pump inhibitor therapy (PRN PPI), as required. Conclusions Morbid obesity does not adversely affect the outcome of LNF. The conversion rate is low when performed by an experienced surgeon. Presented at the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) meeting, Los Angeles, CA, USA, 12–15 March 2003     

Motor function of the esophagus and the lower esophageal sphincter in children who undergo laparoscopic nissen fundoplication

BACKGROUND/PURPOSE: To define the clinical role of laparoscopic Nissen fundoplication (LNF) in children with gastroesophageal reflux (GER), an appropriate understanding of its functional effects is required. The aim of this study was to investigate the motor function of the esophageal body and the lower esophageal sphincter (LES) with special reference to the effects of caloric nutrients in children undergoing LNF. METHODS: Studies were performed in 12 children with GER (age, 6 months to 13 years) before and a month after LNF. Continuous manometric examination was performed with an infusion system using a sleeve sensor for an hour each before and after the administration of apple juice (AAJ; 10 mL/kg). RESULTS: AAJ increased postoperative basal LES pressure from 15 +/- 7 to 20 +/- 6 mm Hg, whereas it decreased the preoperative values from 13 +/- 5 to 10 +/- 4 mm Hg (P < .05). Significant residual pressure was noted at the nadir of swallow-induced LES relaxation after LNF, which was increased by AAJ from 7 +/- 3 to 11 +/- 4 mm Hg. A child with a high nadir LES pressure showed postoperative dysphagia. Significant changes in the patterns of esophageal contractions were not noted after LNF. CONCLUSIONS: Characteristics of the effect of LNF on the LES were a postprandial increase of basal LES pressure and significant residual LES pressure at the nadir of LES relaxation. The motor function of the esophageal body was not affected by LNF.     

Mechanisms responsible for recurrent gastroesophageal reflux in neurologically impaired children who underwent laparoscopic Nissen fundoplication

Background: In this study, we attempted to define the lower esophageal sphincter (LES) motor events associated with the occurrence of gastroesophageal reflux (GER) in neurologically impaired children in whom of GER disease recurred after laparoscopic Nissen fundoplication (LNF). Methods: Of 45 neurologically impaired children who had previously undergone LNF, six children in whom recurrence of GER disease was documented by 24-h esophageal pH monitoring were studied. Concurrent esophageal manometry and pH monitoring were conducted for 1 h both before and after the administration of apple juice (10 ml/kg). Results: A total of 89 reflux episodes were recorded in the course of the study. Of these, 51 episodes (57%) were associated with transient LES relaxation. In the remainder, reflux occurred across a contracted LES in 21 episodes (24%) and during absent basal LES tone in 15 episodes (17%). In four of six patients, transient LES relaxation was responsible for more than half of the reflux episodes. Conclusion: Transient LES relaxation is the predominant mechanism of reflux in neurologically impaired children with recurrent GER after LNF.     

Immediate and delayed effects of laparoscopic Nissen fundoplication on pulmonary function

Background: An effort was made to assess the respiratory outcomes of laparoscopic Nissen fundoplication (LNF). Methods: Prospective follow-up of 69 patients undergoing LNF for gastroesophageal reflux disease. Outcomes included pulmonary function testing, 24-h pH recording, esophageal manometry, and symptom assessment. Results: There was an improvement (p < 0.0001) in heartburn and cough scores. There was a significant fall in spirometry (p < 0001), diffusing capacity (p < 0.0001), and respiratory muscle strength (p < 0.0001) 36 h after surgery, which had returned to baseline by 1 month. At 6 months, the patients (n= 16) with impaired preoperative diffusing capacity showed improvement (17.8 ± 3.7 to 19.8 ± 4.6 ml/min/mmHg, p= 0.0245). Conclusion: Patients undergoing LNF have impaired gas exchange before surgery which tends to improve 6 months after surgery. There is an early reversible impairment in respiratory function due to diaphragm dysfunction. Patients with a preoperative 1-s forced expired volume > 1.5, or 50% predicted, are unlikely to develop signficant early respiratory complication. Received: 22 April 1996/Accepted: 9 July 1996     

Preoperative symptom evaluation and esophageal acid infusion predict response to laparoscopic Nissen fundoplication in gastroesophageal reflux patients who present with cough

BACKGROUND: Most patients with cough and gastroesophageal reflux disease (GERD) improve on medical treatment with proton pump inhibitors (PPI). Nonresponders may be considered for antireflux surgery, but the selection of patients is difficult. METHODS: We have performed laparoscopic Nissen fundoplications (LNF) in 677 patients. Of these patients, 81% have undergone 6-month follow-up assessment with 24-h pH testing, esophageal manometry, symptom scores, and quality-of-life scores. RESULTS: LNF controlled heartburn in 93% and improved cough in 81%. Stepwise multiple regression showed that the preoperative cough score (r = 0.620, p <0.0001) and change in cough on and off PPI (r = 0.296, p = 0.0002) predicted improvement after surgery. A positive result on a randomized acid infusion test was associated with a greater improvement in cough after surgery (p = 0.0243). CONCLUSION: An acid infusion test and assessment of cough on and off PPI may be useful preoperative tools for the selection of patients with cough for LNF.     

Randomized clinical trial of standard laparoscopic versus robot-assisted laparoscopic Nissen fundoplication for gastro-oesophageal reflux disease

BACKGROUND: Robotic systems for minimally invasive surgery may be of added value during extensive dissection and suturing in confined spaces, such as laparoscopic Nissen fundoplication (LNF). The purpose of this trial was to compare standard LNF with robot-assisted Nissen fundoplication (RNF). METHODS: Between 2003 and 2005, 50 patients with confirmed refractory gastro-oesophageal reflux disease were assigned to LNF (25) or RNF (25). Patients who had undergone previous antireflux surgery were excluded. Independent assessment of dysphagia, regurgitation, heartburn and general well-being was performed before and 6 months after surgery using questionnaires. Objective outcome was studied 6 months after surgery by oesophageal manometry, 24-h pH monitoring, barium oesophagram series and upper endoscopy. RESULTS: Operating time, blood loss, postoperative pain scores, hospital stay and complication rates did not differ significantly between the two groups. Reoperation rates were the same (one incisional hernia after LNF and one patient with repeat Nissen after RNF because of persistent dysphagia). Postoperative self-rated change in reflux symptoms and quality of life improved equally in both groups. The reduction in oesophageal acid exposure, increase in lower oesophageal sphincter tone and mucosal healing were comparable in both groups at follow-up. CONCLUSION: RNF yielded similar subjective and objective results to LNF in this study. Therefore no additive value of robotic systems for this procedure was detected up to 6 months after surgery.     

Postprandial bloating after laparoscopic Nissen fundoplication.

OBJECTIVE: To evaluate the prevalence and possible contributing factors to postprandial bloating in patients having chronic gastroesophageal reflux disease (GERD) before and after laparoscopic Nissen fundoplication. DESIGN: A prospective cohort study. SETTING: A tertiary care teaching hospital. PATIENTS: Five hundred and seventy-eight patients with proven GERD. INTERVENTION: Laparoscopic Nissen fundoplication. OUTCOME MEASURES: Symptom severity scores for postprandial bloating and dysphagia, esophageal motility and 24-hour pH measurement before and at 6 months, 2 years and 5 years after laparoscopic Nissen fundoplication. RESULTS: Of the 598 patients, 436 (73%) reported some postprandial bloating before the procedure. The symptom score for bloating significantly improved after surgery (p < 0.0001). There were no significant differences in the lower esophageal sphincter basal pressures or 24-hour pH scores between those who reported improvement or worsening of their postprandial bloating. At 6 months after surgery, 54% of patients experienced postprandial bloating; of these, 49% reported improvement, 21% reported worsening and 30% reported no change in bloating symptoms compared with the preoperative state. Of the patients who reported worsening of postprandial bloating 6 months after surgery, 86 were reassessed 2 years after surgery and 71% reported improvement of this symptom over this time interval. CONCLUSIONS: Bloating is a common symptom in patients who suffer from chronic GERD. Laparoscopic Nissen fundoplication lessens the severity of this symptom in most patients. In a small subgroup of patients, antireflux surgery may exacerbate the bloating, but this improves over time.     

Esophageal and lower esophageal sphincter pressure profiles 6 and 24 months after laparoscopic fundoplication and their association with postoperative dysphagia

Background: It has been suggested that antireflux surgery may cause an improvement in esophageal motor function (EMF) and lead to reduced postoperative dysphagia. Methods: We evaluated the changes in dysphagia symptom scores and esophageal and lower esophageal sphincter (LES) pressures in patients before (n= 381), at 6 months (n= 260), and at 24 months (n= 97) after laparoscopic fundoplication. Results: There was a significant increase in LES basal and nadir pressure following surgery in all patients and an improvement in EMF only in patients with poor preoperative esophageal motor function. A total of 76% of the patients reported no dysphagia or an improved dysphagia score 6 and 24 months after surgery. This improvement was more marked in patients with poor EMF. An improvement in EMF did not correlate with the improvement in dysphagia score reported by other patients. Patients with increased dysphagia scores 2 years after surgery had significantly higher LES basal and nadir pressures as compared to other patients. Conclusions: Laparoscopic Nissen fundoplication is associated with an overall reduction in dysphagia scores and leads to an improvement in esophageal motor function in patients with poor preoperative esophageal motility. Tightness and inadequate relaxation of the wrap during swallowing may be a determinant of long-term dysphagia. Received: 5 May 1997/Accepted: 19 August 1997     

腹腔镜Nissen胃底折叠术治疗胃食管反流病110例报告

目的探讨胃食管反流病（gastroesophageal reflux disease,GERD）的临床表现、腹腔镜Nissen胃底折叠术的治疗效果。方法回顾性分析2007年1月～2008年12月共110例行腹腔镜Nissen胃底折叠术的GERD临床资料。18例以反酸、烧心、嗳气、反食、胸痛等食管内症状为主,92例表现为咳嗽、咳痰、喘息等呼吸道症状为主（6例无反酸、烧心等消化道症状）。结果中转开腹1例,余均成功实施腹腔镜Nissen胃底折叠术。手术时间30～245min,平均67.8min;术中出血量5～450ml,平均28.8ml;术后住院时间2～8d,平均4.1d。术后102例获得6～24个月随访,平均13个月,8例失访。其中66例仅接受电话随访。102例按照症状频次、程度问卷表对其症状进行评分,参考反流性疾病问卷（reflux diagnostic questionnaire,RDQ）评分标准症状评分,术后6个月反酸、烧心、胸痛、咳嗽、喘息、憋气、咽异物感、喉部发紧、声音嘶哑的评分均明显下降（P〈0.05）。87例手术有效,15例手术无效。术后62例（60.8%）出现进食困难,经饮食训练2～6周后60例消失,2例症状严重,经胃镜扩张后缓解。1例术后2个月食管裂孔疝复发,再次腹腔镜手术修补。36例术后3个月选择性地进行了胃镜、24h食管pH监测和食管压力监测复查。28例食管炎患者复查胃镜,25例恢复正常,1例从Ⅲ级转为Ⅰ级,1例从Ⅱ级转为Ⅰ级,1例无变化;31例复查24h食管pH值监测,DeMeester评分恢复正常30例,1例从中度降至轻度;18例复查食管测压,下食管括约肌（LES）静息压从术前的1.2～34.1（中位数14.3）mmHg升至14.3～33.0（中位数20.0）mmHg（Z=3.72,P=0.000）。结论腹腔镜Nissen胃底折叠术是治疗GERD的有效方法,具有微创、损伤小、病人恢复快和操作安全的优点,对诊断明确的以食管外症状为主要表现的GERD特别值得提倡。     

Gastroesophageal disease and nausea: does fundoplication help or hurt?

HYPOTHESIS: Nausea associated with gastroesophageal reflux disease is cured by laparoscopic Nissen fundoplication (LNF). DESIGN: Prospective cohort study of unselected patients who underwent LNF from January 1, 1995, through March 31, 1999. Patients were followed up by a physician for 6 to 36 months. SETTING: A large community teaching hospital. PATIENTS: One hundred consecutive patients with gastroesophageal reflux disease who underwent LNF; all patients were followed up. Patients were grouped according to the presence (group A, n = 33) or absence (group B, n = 67) of preoperative nausea. Interventions were LNF, esophageal manometry, 24-hour pH monitoring, and nuclear gastric emptying studies. MAIN OUTCOME MEASURES: Resolution of symptoms after LNF. RESULTS: Nausea was the most common atypical symptom of gastroesophageal reflux disease, occurring in 33 patients (33%). There were no differences in esophageal manometry or 24-hour pH results between groups. There was a female preponderance in group A (55% vs 33%; P = .003). Patients in group A had a higher prevalence of preoperative dysphagia (P = .02). Patients with persistent postoperative nausea had a higher prevalence of cough (P = .003) and dysphagia (P = .009). The LNF was more effective in reducing heartburn (95% reduction) and regurgitation (95% reduction) than cough and dysphagia (60% reduction). There was a 79% reduction in the number of patients with nausea (33 to 7; P<.001). CONCLUSION: Laparoscopic Nissen fundoplication is effective in eliminating nausea associated with gastroesophageal reflux disease and is not contraindicated in these patients.     

Outcome after laparoscopic fundoplication is not dependent on a structurally defective lower esophageal sphincter

With the advent of laparoscopic surgery and the recognition that gastroesophageal reflux disease often requires lifelong medication, patients with normal resting sphincter characteristics are now being considered for surgery. The outcome of these patients after fundoplication is unknown and formed the basis of this study. The study population consisted of 123 patients undergoing laparoscopic Nissen fundoplication between 1992 and 1996. All patients had increased esophageal acid exposure on 24-hour esophageal pH monitoring. Patients were divided into those with a normal (n = 36) and those with a structurally defective (n = 87) lower esophageal sphincter (LES), based on LES resting pressure (normal >6 mm Hg), overall length (normal >2 cm), and abdominal length (normal > 1 cm), and their outcomes were assessed. Each group was subsequently divided into patients presenting with a primary symptom that was "typical" (heartburn, regurgitation, or dysphagia) or "atypical" (gastric, respiratory, or chest pain) of gastroesophageal reflux, and outcome was assessed. Median duration of follow-up was 18 months after surgery. Overall, laparoscopic fundoplication was successful in relieving symptoms of gastroesophageal reflux in 90% of patients. Patients with a typical primary symptom had an excellent outcome irrespective of the resting status of the LES (95% and 97%, respectively). Atypical primary symptoms were significantly more common in patients with a normal LES (29%) than in those with a structurally defective LES (10%; P <0.05), and these symptoms were less likely (50%) to be relieved by antireflux surgery. Laparoscopic antireflux surgery is highly successful and not dependent on the status of the resting LES in patients with increased esophageal acid exposure and primary symptoms "typical" of gastroesophageal reflux. Antireflux surgery should be applied cautiously in patients with atypical primary symptoms. Presented in part at the Thirty-Eighth Annual Meeting of The Society for Surgery of the Alimentary Tract, Washington, D.C., May 11–14,1997.     

Impact of laparoscopic Nissen’s fundoplication on response of disease specific symptoms and quality of life

The aim of this study is to establish responsiveness of gastroesophageal reflux disease (GERD) symptom score, quality of life SF-36 score in GERD with relation to oesophageal manometry and upper gastrointestinal endoscopy following laparoscopic Nissen’s fundoplication (LNF). Interventional prospective study was done enrolling 77 patients of GERD who respond to proton pump inhibitor (PPI) and have undergone LNF, strict diagnostic criteria were followed with GERD score, upper gastrointestinal endoscopy, oesophageal manometry, and endoscopically negative patients have further undergone 24-h pH study. Follow-up was done at 12 and 24 months by GERD score, SF-36 score, endoscopy, oesophageal manometry. GERD score shows significant difference in pre-operative and post-operative score with P value <0.001 except dysphagia. Post-LNF improvement in GERD score is consistent with improvement in lower oesophageal sphincter (LES) pressure at 12 months. All dimensions in quality of life SF-36 show significant difference in pre-operative and post-operative score at 12 months with P value <0.001. Results are consistent at 24 months. Oesophagitis was decreased from 40.2 to 11.6 % as well as it showed down grading on endoscopy in post-operative period. Out of three patients of complete disruption of wrap, two patients underwent redo surgery and showed improvement. In properly diagnosed PPI respondent patients by GERD score, LNF has got improvement in GERD score, quality of life in all dimensions of SF-36 score in relation to improvement with LES pressure and oesophagitis.     

Laparoscopic surgery for gastroesophageal reflux disease patients with impaired esophageal peristalsis: total or partial fundoplication?

BACKGROUND: It has been proposed that partial fundoplication is associated with less incidence of postoperative dysphagia and consequently is more suitable for patients with gastroesophageal reflux disease (GERD) and impaired esophageal body motility. The aim of this study was to assess whether outcomes of Toupet fundoplication (TF) are better than those of Nissen-Rossetti fundoplication (NF) in patients with GERD and low-amplitude esophageal peristalsis. STUDY DESIGN: Thirty-three consecutive patients with proved GERD and amplitude of peristalsis at 5 cm proximal to lower esophageal sphincter (LES) less than 30 mmHg were randomly allocated to undergo either TF (19 patients: 11 men, 8 women; mean age: 61.7 +/- 8.7 SD years) or NF (14 patients: 7 men, 7 women; mean age: 59.2 +/- 11.5 years), both by the laparoscopic approach. Pre- and postoperative assessment included clinical questionnaires, esophageal radiology, esophageal transit time study, endoscopy, stationary manometry, and 24-hour ambulatory esophageal pH testing. RESULTS: Duration of operation was significantly prolonged in the TF arm (TF: 90 +/- 12 minutes versus NF: 67 +/- 15 minutes; p < 0.001). At 3 months postoperatively, the incidences of dysphagia (grades I, II, III) and gas-bloat syndrome were higher after NF than after TF (NF: 57% versus TF: 16%; p < 0.01 and NF: 50% versus TF: 21%; p = 0.02, respectively), but decreased to the same level in both groups at the 1-year followup (NF: 14% versus TF: 16% and NF: 21% versus TF: 16%, respectively). At 3 months postoperatively, patients with NF presented with significantly increased LES pressure than those with TF (p = 0.02), although LES pressure significantly increased after surgery in both groups, as compared with preoperative values. Amplitude of esophageal peristalsis at 5 cm proximal to LES increased postoperatively to the same extent in both groups (TF, preoperatively: 21 +/- 6 mmHg versus postoperatively: 39 +/- 12 mmHg; p < 0.001, and NF, preoperatively: 20 +/- 8 mmHg versus postoperatively: 38 +/- 12 mmHg; p < 0.001). Reflux was abolished in all patients of both groups. CONCLUSIONS: Both TF and NF efficiently control reflux in patients with GERD and low amplitude of esophageal peristalsis. Early in the postoperative period, TF is associated with fewer functional symptoms, although at 1 year after surgery those symptoms are reported at similar frequencies after either procedure.     

Randomized clinical trial of laparoscopic Nissen fundoplication compared with proton-pump inhibitors for treatment of chronic gastro-oesophageal reflux

BACKGROUND: Both laparoscopic Nissen fundoplication (LNF) and proton-pump inhibitor (PPI) therapy are established in the treatment of gastro-oesophageal reflux disease (GORD). The aim of this study was to compare these two treatments in a randomized clinical trial. METHODS: Between July 1997 and August 2001, 340 patients with a history of GORD for at least 6 months were investigated by endoscopy, 24-h pH monitoring and manometry. Of these, 217 were randomized, 109 to LNF and 108 to PPI therapy. The two groups were well matched for age, sex, weight and severity of reflux. Twenty-four-hour pH monitoring and manometry were performed 3 months after treatment, and quality of life was assessed in both groups using the Psychological General Well-being Index and the Gastrointestinal Symptom Rating Scale at 3 and 12 months after treatment. RESULTS: At 3 months there was an improvement in lower oesophageal sphincter pressure from 6.3 to 17.2 mmHg in the LNF group but no change in the PPI group (8.1 and 7.9 mmHg before and after treatment respectively) (P < 0.001). The mean DeMeester acid exposure score improved from 42.7 to 8.6 (P < 0.001) in the LNF group and from 36.9 to 17.7 in the PPI group (P < 0.001). The mean gastrointestinal symptom and general well-being scores improved from 31.7 and 95.4 respectively before treatment to 37.0 and 106.2 at 12 months after LNF, compared with changes from 34.3 and 98.5 to 35.0 and 100.4 respectively in the PPI group. The differences in both of these scores were significant between the two groups at 12 months (P = 0.003). CONCLUSION: LNF leads to significantly less acid exposure of the lower oesophagus at 3 months and significantly greater improvements in both gastrointestinal and general well-being after 12 months compared with PPI treatment.     

Does laparoscopic antireflux surgery prevent the occurrence of transient lower esophageal sphincter relaxation?

Background: Transient lower esophageal sphincter relaxation (TLESR) is the most common mechanism underlying gastroesophageal reflux disease (GERD), causing 70% to 100% of the reflux episodes in normal subjects and 63% to 74% of the reflux episodes in patients with reflux disease. This study aimed to evaluate the effect of laparoscopic Nissen fundoplication on TLESR in patients with proven GERD. Methods: We prospectively followed 73 consecutive patients (13 men and 60 women; mean age, 43.7 ± 1.72 years) with proven diagnosis of GERD and reported TLESRs found during a 40-min esophageal manometric study. These patients had repeat testing 6 months after undergoing laparoscopic Nissen fundoplication. Results: Laparoscopic Nissen fundoplication increased the basal and nadir lower esophageal sphincter (LES) pressure and significantly reduced the number of TLESRs during the manometric study. No patients after surgery exhibited TLESR with nadir less than 2 mmHg. However, 8 of the 73 patients (11%) exhibited TLESR to a nadir exceeding 50% of basal pressure (mean nadir, 5.0 ± 1.07 mmHg). Conclusions: The number of TLESRs is reduced significantly by antireflux surgery. Even accounting for increased basal and nadir pressures, the incidence of TLESR is reduced, suggesting that there may be additional mechanisms involved in this process.     

The effect of medical therapy and antireflux surgery on dysphagia in patients with gastroesophageal reflux disease without esophageal stricture

BACKGROUND: Poor esophageal body motility and trapping of the hernial sac by the hiatal crura are the major pathomechanisms of gastroesophageal reflux disease (GERD)-induced dysphagia. There is only little knowledge of the effect of medical therapy or antireflux surgery in reflux-induced dysphagia. METHODS: Fifty-nine consecutive GERD patients with dysphagia were studied by means of a symptom questionnaire, endoscopy, barium swallow, esophageal manometry, and 24-hour pH monitoring of the esophagus. Patients had proton pump inhibitor therapy and cisapride for 6 months. After GERD relapsed following withdrawal of medical therapy, 41 patients decided to have antireflux surgery performed. The laparoscopic Nissen fundoplication was chosen in 12 patients with normal esophageal body motility and the laparoscopic Toupet fundoplication in 29 patients with impaired peristalsis. Dysphagia was assessed prior to treatment, at 6 months of medical therapy, and at 6 months after surgery. RESULTS: Heartburn and esophagitis were effectively treated by medical and surgical therapy. Only surgery improved regurgitation. Dysphagia improved in all patients following surgery but only in 16 patients (27.1%) following medical therapy. Esophageal peristalsis was strengthened following antireflux surgery. CONCLUSIONS: Medical therapy fails to control gastroesophageal reflux as it does not inhibit regurgitation. Thus, it has little effect on reflux-induced dysphagia. Surgery controls reflux and improves esophageal peristalsis. This may contribute to its superiority over medical therapy in the treatment of GERD-induced dysphagia.     

Effect of Laparoscopic Gastric Banding on Esophageal Motility

Background: Alterations in esophageal motility may occur after placement of an adjustable gastric band as treatment for morbid obesity, near the gastro-esophageal junction. It causes an outlet obstruction, especially during follow-up after the band is filled. Methods: 29 morbidly obese patients underwent conventional manometry preoperatively, 6 weeks postoperatively before and after filling the band and at 6 months postoperatively. A questionnaire was used to assess upper gastrointestinal symptoms during follow-up. Results: After band placement, there was a significant increase in lower esophageal sphincter (LES) end-expiratory pressure at 6 weeks with an empty band: 1.3 (0.9-1.9) kPa (median (interquartile range) (P=0.003), 6 weeks with a filled band: 2.1 (1.5-2.8) kPa (P=0.0001), and at 6 months: 1.5 (1.3-1.9) kPa (P=0.001), compared to the preoperative pressure: 0.8 (0.6-1.3) kPa. Also after band placement, the high pressure zone length increased (preop 5.0 (4.3-6.0) cm vs 6 weeks 6.0 (5.0-6.5) cm (P=0.003). The propagation of peristaltic contractions was not significantly altered after band placement. Heartburn decreased 6 weeks postoperatively (P=0.04) but increased at 6 months. Heartburn at 6 months was correlated with pouch formation (0.667; P<0.01). Conclusion: Adjustable gastric band placement causes an increase in LES pressure and length of the high pressure zone. It decreases reflux symptoms in the short-term, but this effect appears not to be related to an effect on LES pressure or length. Pouch formation increases reflux symptoms without having any relationship to LES pressure and length. Band placement in the short-term does not disturb propagation of esophageal contractions.     

Laparoscopic Nissen fundoplication decreases gastroesophageal junction distensibility in patients with gastroesophageal reflux disease

Laparoscopic Nissen fundoplication (LNF) is the surgical treatment of choice for gastroesophageal reflux disease (GERD). Post-LNF complications, such as gas bloat syndrome, inability to belch and vomit, and dysphagia, remain too common and prevent LNF from being more highly recommended. It remains controversial as to whether preoperative assessment can predict the development of post-LNF complications. Some authors have shown a correlation between pre-LNF manometry characteristics and post-LNF dysphagia, and others have not. We hypothesize that many post-LNF complications are caused by a decrease in the distensibility of the GEJ and that standard manometry is at best an indirect measure of this. The aim of this study is to directly measure the effect of LNF on gastroesophageal junction (GEJ) distensibility (GEJD).The lower esophageal sphincter (LES) of 15 patients undergoing LNF was characterized using standard manometry. The GEJD before and after a standardized LNF was measured using a specialized catheter, containing an infinitely compliant bag, placed within the LES. GEJD was measured, as dV/dP over volumes 5 to 25 mL distended at a rate of 20 mL/min. Mean dP ± standard error of the mean for each volume was calculated, and distensibility curves were generated and compared. Measurements were also taken after abolishing LES tone by mid-esophageal balloon distension. Patient symptoms were recorded before and after surgery. Statistical analysis was performed by two-way repeated-measures analysis of variance, paired t test, and the Tukey test. Laparoscopic Nissen fundoplication led to a statistically significant increase in Dpressure over each volume tested and therefore a significant decrease in the distensibility of the GEJ. Abolition of LES tone had no statistical effect on GEJD after fundoplication. There were no complications, and none of the patients developed the symptom of dysphagia postoperatively. These are the first direct measurements to show that LNF significantly reduces the distensibility of the GEJ. We hypothesize that the magnitude of this reduction may be the vital variable in the development of post-LNF complications and specifically post-LNF dysphagia. The intraoperative measurement of LES distensibility may provide a means for avoiding this feared and other post-LNF complications in the future. Presented at the Forty-Sixth Annual Meeting of The Society for Surgery of the Alimentary Tract, Chicago, Illinois, May 14–18, 2005 (poster presentation).