Myotomy: follow-up study of 50 patients

Long-term Symptom Control After Laparoscopic Heller Myotomy and Dor Fundoplication for Achalasia

BACKGROUND

Achalasia is a primary esophageal motility disorder in which there is incomplete relaxation of the lower esophageal sphincter and absence of peristalsis in the lower two thirds of the esophagus. A favored treatment is laparoscopic modified Heller myotomy with Dor fundoplication (LHMDor) with more than 90% immediate beneficial effect. The short-term outcomes of LHMDor are well documented, but stability and durability of postoperative symptom control over time is less understood.

METHODS

Between 2004 and 2016, 54 patients with achalasia underwent LHMDor (single center). Using validated questionnaires, patients rated their symptoms in five domains: pain, gastroesophageal reflux disease (GERD), dysphagia, regurgitation, and quality of life. Symptom ratings were done preoperatively, 4 weeks postoperatively, 6 months postoperatively, and yearly after the operation.

RESULTS

As expected, patients reported marked improvement in dysphagia, odynophagia, regurgitation, GERD, and quality of life after the operation (P < .001). From then on, the symptom control remained durable with respect to absence of pain, regurgitation, and odynophagia; however, we observed a recurrence of GERD symptoms beginning 3 to 5 years postoperatively (P = .001 and P = .04, respectively), with associated increased antireflux medication use. After initial LHMDor, 5 patients required endoscopic dilatation an average of 1.5 years postoperatively, and no patient required reoperation. Patients reported preserved improved quality of life to 11 years after the operation (P = .001).

CONCLUSIONS

These results demonstrate the durability of LHMDor in the definitive management of achalasia, offering consistent symptomatic relief and significant improvement in quality of life over the decade after surgery, despite some increase in GERD symptoms and antireflux medication use.

Heller myotomy versus Heller myotomy with Dor fundoplication for achalasia: long-term symptomatic follow-up of a prospective randomized controlled trial

BACKGROUND

Our prior randomized controlled trial of Heller myotomy alone versus Heller plus Dor fundoplication for achalasia from 2000 to 2004 demonstrated comparable postoperative resolution of dysphagia but less gastroesophageal reflux after Heller plus Dor. Patient-reported outcomes are needed to determine whether the findings are sustained long-term.

METHODS

We actively engaged participants from the prior randomized cohort, making up to six contact attempts per person using telephone, mail, and electronic messaging. We collected patient-reported measures of dysphagia and gastroesophageal reflux using the Dysphagia Score and the Gastroesophageal Reflux Disease-Health-Related Quality of Life (GERD-HRQL) instrument. Patient-reported re-interventions for dysphagia were verified by obtaining longitudinal medical records.

RESULTS

Among living participants, 27/41 (66%) were contacted and all completed the follow-up study at a mean of 11.8 years postoperatively. Median Dysphagia Scores and GERD-HRQL scores were slightly worse for Heller than Heller plus Dor but were not statistically different (6 vs 3, p = 0.08 for dysphagia, 15 vs 13, p = 0.25 for reflux). Five patients in the Heller group and 6 in Heller plus Dor underwent re-intervention for dysphagia with most occurring more than five years postoperatively. One patient in each group underwent redo Heller myotomy and subsequent esophagectomy. Nearly all patients (96%) would undergo operation again.

CONCLUSIONS

Long-term patient-reported outcomes after Heller alone and Heller plus Dor for achalasia are comparable, providing support for either procedure.

Pneumatic dilation versus laparoscopic Heller myotomy for the treatment of achalasia: variables related to a good response

Achalasia is a motor disorder characterized by esophageal aperistalsis and failure of lower esophageal sphincter relaxation. The cardinal symptoms are dysphagia, food regurgitation and weight loss. The most effective treatments are pneumatic dilation (PD) of the cardia and Heller esophageal myotomy with partial fundoplication. There is still controversy regarding which treatments should be initially done. The aims of this study were to evaluate clinical response and the variables related to good results in both treatments. Ninety-two patients with achalasia diagnosed by esophageal manometry were randomized to receive either PD or laparoscopic Heller myotomy with partial fundoplication. After the procedure, patients were followed up clinically and submitted to esophageal manometry and pH monitoring. Three months after treatment, 73% of the patients from PD group and 84% of the surgery group had good results (P = 0.19). After 2 years of follow-up, 54% of the PD group and 60% of the surgery group (P = not significant) were symptom free. Variables related to a good response to PD were a 50% drop in lower esophageal sphincter pressure (LESP) or a LESP <10 mmHg after treatment. Patients over 40 years old with LESP ≤32 mmHg before treatment and a drop in LESP >50% after treatment significantly achieved better responses after surgical treatment when compared with PD. The reflux rate was significantly higher in the PD group (27.7%) compared with the surgery group (4.7%), P = 0.003. We concluded that surgical treatment and PD for achalasia are equally effective even after 2 years of follow-up. The choice of treatment for achalasia should be based on the following parameters: treatment availability, rate of good results, complication rates, variables related to good responses and also the patient's wish.

Efficacy and safety of pneumatic dilatation for achalasia in the treatment of post-myotomy symptom relapse

OBJECTIVES

There is no consensus on how best to treat symptom recurrence following previous therapy with Heller myotomy. Our aim was to determine the safety and the short and long-term efficacy of pneumatic dilatation to treat symptomatic recurrence in patients previously treated with Heller myotomy for idiopathic achalasia.

METHODS

We identified 27 eligible patients treated with pneumatic dilatation, for symptom recurrence following Heller myotomy as their initial or secondary treatment, from a prospectively acquired database of 450 patients with a diagnosis of achalasia seen between 1995 and 2010. Our treatment protocol involved sequential, graded pneumatic dilatations (30-35-40 mm) over a 2-6 week period until an initial therapeutic response was achieved. The subsequent relapse rate, defined as the need for any subsequent therapy, was determined. Relapsers were offered further pneumatic dilatation "on demand". A cross-sectional analysis was also performed using a validated achalasia severity questionnaire to determine the overall long-term remission rate.

RESULTS

Of 27 eligible patients, 25 (93%) complied with the institutional dilatation protocol. The two drop-outs did so after the initial 30 mm dilatation and were deemed treatment failures. One additional patient did not respond despite protocol compliance. Therefore, 24 of 27 (89%) patients were responders on intention to treat analysis at 12 months, while the per protocol response rate was 24 of 25 (96%). Among the 24 responders 16, 25, and 42% relapsed at 2, 3 and 4  years, respectively. Overall long-term remission, with on demand dilatations as required, was 95% (median follow-up 30 months). There were no perforations in a total of 50 dilatations in 27 patients.

CONCLUSIONS

In treating symptom recurrence, following prior Heller myotomy, pneumatic dilatation is safe and yields an excellent short-term response rate. Although the long-term relapse rate is substantial, subsequent on demand pneumatic dilatation in this population is highly effective with a long-term remission rate of 95%. These data also highlight the need to keep these patients under long-term review.

Medium and long-term outcomes after pneumatic dilation or laparoscopic Heller myotomy for achalasia: a meta-analysis

Recent randomized studies comparing outcomes after pneumatic dilation (PD) and laparoscopic Heller myotomy (LHM) for the treatment of achalasia are conflicting and limited to short-term follow-up. Our meta-analysis compared the long-term durability of these approaches, with the hypothesis that LHM offers superior long-term remission compared with PD. We identified 36 studies published between 2001 and 2011 with at least 5 years of follow-up. Those studies describing PD included 3211 patients (mean age, 49.8 y). For PD, the mean 5-year remission rate was 61.9% and the mean 10-year remission rate was 47.9%. Overall, 1526 patients (mean age, 46.3 y) were treated with LHM; 83% received a fundoplication. In contrast, the mean 5- and 10-year remission rates after LHM were 76.1% and 79.6%, respectively. Finally, the perforation rate for LHM was twice that of PD (4.8% vs. 2.4%; P<0.05). We conclude that despite a higher frequency of perforation, LHM affords greater long-term durability.

Oesophageal achalasia: an argument for primary surgical management

INTRODUCTION

Achalasia is a primary oesophageal motility disorder resulting from damage to the ganglion cells of the myenteric plexus. Impaired relaxation of the lower oesophageal sphincter and aperistalsis causes its cardinal symptoms of dysphagia, chest pain and reflux-type symptoms. Management is somewhat controversial, with options including systemic and local pharmacotherapy, dilatation and oesophagomyotomy. We review the presentation, investigation and management of oesophageal achalasia and make an argument for primary surgical management.

METHODS

We performed a Medline search of the term 'achalasia', limiting the search to clinical trials and meta-analyses. We then selected articles based on their abstracts using four main criteria: previously unreported findings, previously unreported techniques, size of patient cohort and journal impact factor. References in selected articles were manually searched for other relevant articles.

FINDINGS

Achalasia has been managed using a variety of techniques including systemic and local pharmacotherapy, forced dilatation and oesophagomyotomy. Success rates vary widely between techniques. Mechanical disruption ofthe lower oesophageal sphincter is most successful.

DISCUSSION

In achalasia, mechanical disruption of the lower oesophageal sphincter using forced dilatation or surgical myotomy offers the only realistic prospect of long-term symptom relief. Recent evidence suggests that previous medical treatment or dilatation makes oesophagomyotomy more difficult and increases the risk of complications. As the morbidity associated with surgery continues to decrease with improvements in minimal access techniques, the argument for primary management of achalasia with oesophagomyotomy becomes more compelling.

Trends of Heller myotomy hospitalizations for achalasia in the United States, 1993-2005: effect of surgery volume on perioperative outcomes

OBJECTIVES

Achalasia is a rare chronic disorder of esophageal motor function. Single-center reports suggest that there has been greater use of laparoscopic Heller myotomy for achalasia in the United States since its introduction in 1992. We aimed to study the trends of Heller myotomy and the relationship between surgery volume and perioperative outcomes.

DATA AND METHODS

The Healthcare Cost and Utilization Project Nationwide Inpatient Sample (NIS) is a 20% stratified sample of all hospitalizations in the United States. It was used to study the macro-trends of Heller myotomy hospitalizations during 1993-2005. We also used the NIS 2003-2005 micro-data to study the perioperative outcomes of Heller myotomy hospitalizations, using other achalasia and laparoscopic cholecystectomy hospitalizations as control groups. The generalized linear model with repeated observations from the same unit was used to adjust for multiple hospitalizations from the same hospital.

RESULTS

The national estimate of Heller myotomy hospitalizations increased from 728 to 2,255 during 1993-2005, while its mean length of stay decreased from 9.9 to 4.3 days. Of the 1,117 Heller myotomy hospitalizations in the NIS 2003-2005, 10 (0.9%) had the diagnosis of esophageal perforation at discharge. Length of stay was negatively correlated with a hospital's number of Heller myotomy per year (correlation coefficient -0.171, P < 0.001). In multivariate log-linear regressions with a control group, a hospital's number of Heller myotomy per year was negatively associated with length of stay (coefficient -0.215 to -0.119, both P < 0.001) and total charges (coefficient -0.252 to -0.073, both P < 0.10). These findings were robust in alternative statistical models, specifications, and subgroup analyses.

CONCLUSIONS

On a national level, the introduction of laparoscopic Heller myotomy for achalasia was associated with greater use of surgery and shorter length of stay. A larger volume of Heller myotomy in a hospital was associated with better perioperative outcomes in terms of shorter length of stay and lower total charges.

Symptomatic outcome of laparoscopic cardiomyotomy without an antireflux procedure: experience in initial 40 cases

The aim of surgical treatment in achalasia cardia is symptom relief. Most studies have evaluated the results of laparoscopic cardiomyotomy with an antireflux procedure. However, data on the effectiveness of laparoscopic cardiomyotomy without an antireflux procedure is sparse. We describe our experience of laparoscopic cardiomyotomy without antireflux procedure in 40 consecutive patients with respect to symptom relief and complications. There was no mortality and 1 conversion. Preoperatively dysphagia, regurgitation, and heartburn were present in 40, 39, and 11 patients. At a mean follow-up of 26 months, there was a significant improvement in symptom scores. Two patients (5%) had persistent postoperative dysphagia. One improved on conservative therapy, whereas other was treated with relaparoscopic cardiomyotomy. Three patients (7.5%) developed heartburn in the postoperative period, which was well controlled with proton pump inhibitors. Laparoscopic cardiomyotomy without antireflux procedure results in excellent relief of dysphagia without producing significant symptomatic reflux in the follow-up.