Laparoscopic Heller's cardiomyotomy without an antireflux procedure

24-h pH monitoring patterns and clinical response after achalasia treatment with pneumatic dilation or laparoscopic Heller myotomy

BACKGROUND

The most effective treatment for achalasia is pneumatic dilation or myotomy. The best option is still controversial and incidence of complications could help choosing. Gastro-oesophageal reflux (GER) is the most frequent complication after treatment for achalasia. The 24-h pH monitoring (24-h pH) is the best method to evaluate true GER.

AIM

To analyse the 24-h pH patterns after treatment, correlating with therapeutic success.

METHODS

Untreated patients with achalasia were randomized to pneumatic dilation or laparoscopic Heller myotomy with fundoplication (LHM+Fp) and evaluated with clinical/manometric results and 24-h pH.

RESULTS

Ninety-four patients were analysed pre-treatment and 85 post-treatment. Clinical success was 73.8% in pneumatic dilation group and 88.3% in LHM+Fp group (P = 0.08). The incidence of GER was 31% in pneumatic dilation, and 4.7% in LHM+Fp (P = 0.001). The occurrence of hypotensive lower oesophageal sphincter (LES) was 53.3% in patients who developed GER and 28.6% in patients with 24-h pH suggesting fermentation (P = 0.019). The rates of dysphagia resolution in patients with 24-h pH of GER and fermentation were respectively 86.7% and 85.7% (P = 0.89).

CONCLUSIONS

True GER 24-h pH is more frequent after pneumatic dilation for achalasia, and it is associated with a hypotensive LES. A 24-h pH suggestive of fermentation or true GER is not associated with worse clinical/manometric results.

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.

Results of laparoscopic Heller myotomy without anti-reflux procedure in achalasia. Monocentric prospective study of 106 cases

BACKGROUND

Heller myotomy (HM) combined with an anti-reflux procedure has been shown to be effective for the treatment of achalasia, as postoperative gastro-esophageal reflux (GER) is observed in about 10% of the cases. Laparoscopy has brought an undeniable benefit in providing excellent visualisation of the gastro-esophageal junction (GEJ) without lateral and posterior dissection. Respecting the anatomical fixation of the GEJ seems to permit the performing of HM without an anti-reflux procedure, the need for which is therefore debatable. The purpose of this study was to analyse the results of this controversial procedure.

METHODS

A monocentric prospective study was carried out on 106 patients who underwent HM without an anti-reflux procedure. The postoperative assessment consisted of a manometry and a 24-hour pH study two months after surgery, and a yearly clinical examination for a minimum of five years. The data capture was done using a statistical analysis.

RESULTS

There was no mortality, one conversion to an open procedure, and four mucosal perforations. Postoperative morbidity was 2%. The average follow-up period was 55 months (range, 2 to 166), with 10 patients lost to follow-up. Good functional results were observed in 91.4% of patients at one year, and 78.6% at five years. Two months after surgery, a 9.4% prevalence of GER was detected in the pH study, and the lower esophageal sphincter pressure had significantly decreased. After a long term follow-up we observed an 11.3% global rate of GER. No repeat surgery was necessary to control postoperative GER.

CONCLUSIONS

Laparoscopic HM without anti-reflux procedure gives good functional results provided the anatomical fixation of the GOJ is respected.

Wound healing of laparoscopic esophageal myotomy with or without an added gastric patch

BACKGROUND

The purpose of this research is to compare the wound healing of the laparoscopic esophagomyotomy with and without a gastric patch.

METHODS

Twelve male pigs were distributed into two groups of six animals. Esophagomyotomy was performed in group A. A gastric patch was associated to the myotomy in group B. On the 21st postoperative day, lumen molding was accomplished to determine the index of stenosis (IS) at the area of myotomy (AM). Macroscopic and microscopic aspects of wound healing were also studied at AM. Three microscopic morphologic patterns were defined for morphometric evaluation: leukocytes (constituted by polymorphonuclear and mononuclear cells), new endothelial cells, and collagen fibers.

RESULTS

There was a longer operative duration in group B (93.6 min) than in group A (45 min). At AM, IS was negative (lumen increased) and equivalent in both groups: -11.1% in group A and -12.7% in group B. Mesotelial epithelium covering RM was observed in group A. Inflammatory reaction was greater in group B in comparison with group A (leuCocytes: 22 cells versus 8.6; fibrosis: 25.5 fibers versus 15.6; granulation tissue: 18.7 vessels versus 9.7).

CONCLUSION

Esophagomyotomy followed by gastric patch does not heal adequately and is worsened by the presence of foreign body granulomas around stitches. Myotomy without gastric patch is faster and causes lower inflammation. Myotomy alone or with gastric patch does not lead to esophageal stenosis at RM and does not lead to restoration of the esophageal musculature continuity.

Laparoscopic myotomy for oesophageal achalasia--adding an antireflux procedure is not always necessary

Laparoscopy is the access of choice for functional surgery of the gastroesophageal junction, and oesophagocardiomyotomy, as the conventional surgical treatment of achalasia, is one of the favourable indications for laparoscopic surgery. Laparoscopic anterior myotomy technique is highly effective and secure for relieving dysphagia with minimal risk of gastroesophageal reflux. Fifteen patients with the diagnosis of achalasia were treated with laparoscopic anterior face oesophagocardiomyotomy without a concomitant antireflux procedure. There was not any perioperative complication and no procedure was converted to open operation. Oesophageal cineradiography, manometry and 24-h pH monitoring were repeated postoperatively. Manometry showed a significant reduction of the resting tone (48-34.4 to 18-3.2 mmHg), and patients were free of symptoms for reflux and dysphagia at the follow-up between 8 and 96 (median 42) months. Only one patient needed pneumatic dilation, 1 year after the operation for mild dysphagia, and one patient had moderate reflux, which was managed by medication. Thanks to minimal invasive technique of laparoscopic surgery and intraoperative endoscopy, oesophagocardiomyotomy can safely be performed in a length needed without dividing lateral and posterior phrenoesophageal ligamentous attachments. Consequently, adding an antireflux procedure routinely is not necessary. We advocate laparoscopic anterior oesophagocardiomyotomy alone as the first-line treatment for achalasia.

Cicatrização da miotomia de Heller por acesso videolaparoscópico com e sem fundocardioplastia de dor associada, em porcos

OBJETIVO: Comparar a cicatrização da miotomia esofagiana laparoscópica associada ou não à fundocardioplastia de Dor. MÉTODO: Foram utilizados 18 porcos, em três grupos de seis animais. No grupo A foi realizada miotomia esofagiana. No grupo B associou-se plicatura gástrica à miotomia. O grupo C foi sem miotomia. No 21º dia pós-operatório houve moldagem do lume para obter índices de estenose (IE) na região da miotomia (RM) e na transição esôfago-gástrica (I'E'). Foram também estudados aspectos macro e microscópicos. RESULTADOS: Duração maior (t de Student) no grupo B (93,6 minutos) que no A (45 minutos). Considerando- se o IE dos grupos A e B, não houve estenose e eles se equivaleram - Mann-Withney (-11.1% no grupo A e -12.7% no grupo B). O I'E' foi sempre maior que o IE - Wilcoxon (18% versus -11,1% no grupo A e 37,7 % versus -12.7% no grupo B). O I'E' do grupo B (37,7%) foi o maior entre os grupos (Kruskal-Wallis): A: 18%; C: 15,5%. Houve regularidade macroscópica da região da miotomia do grupo A e deformidades com inflamação aguda persistente e granulomas no B. No grupo A houve epitelização mesotelial e no B a superfície cruenta permaneceu granulada. Na RM do grupo B, leucócitos (22 versus 8,6 do A) e vasos (18,7 versus 9,7 da A) foram mais numerosos. A fibrose foi mais profusa no grupo B (25,85 fibras versus 15,6 no A). CONCLUSÕES: A plicatura gástrica sobre a miotomia esofagiana propicia cicatrização menos adequada e é mais demorada que a miotomia isolada.

Laparoscopic esophagomyotomy for achalasia: does anterior hemifundoplication affect clinical outcome?

OBJECTIVE

To determine whether the addition of anterior hemifundoplication to laparoscopic esophagomyotomy for achalasia yields better clinical outcomes than laparoscopic esophagomyotomy alone.

SUMMARY BACKGROUND DATA

Although hemifundoplication may prevent gastroesophageal reflux after esophagomyotomy for achalasia, it may also lead to persistent dysphagia in these patients with esophageal aperistalsis.

METHODS

This is a retrospective study of 51 consecutive patients (mean age 47.5 +/- 12.6 years) who had laparoscopic esophagomyotomy for achalasia by our group between August 1995 and January 2001. In 29 patients (57%) an anterior hemifundoplication was added to the esophagomyotomy. In 22 patients (43%), no wrap was added. Patients scored (0 = none; 1 = mild; 2 = moderate; 3 = severe) symptom severity (dysphagia, regurgitation, heartburn, chest pain) preoperatively and postoperatively. Weight gain, use of gastrointestinal (GI) medication, tolerance to food, and patient satisfaction were also assessed.

RESULTS

Mean patient follow-up was 33 months, and there were no operative deaths. Four patients were converted to open operation (8%). The wrap and no wrap groups were similar in terms of esophageal dilation, preoperative symptom severity and duration (5.7 +/- 7.1 versus 6.1 +/- 7.0 years), and preoperative weight loss (18 +/- 15 versus 20 +/- 20 pounds). Both groups had similar improvement in symptom grade postoperatively and equivalent satisfaction rates (86%). Postoperative weight gain, GI medication use, and food intolerance was also similar. Postoperatively, patients in the wrap group did not have higher dysphagia scores or lower heartburn scores than the no wrap group.

CONCLUSION

The addition of anterior hemifundoplication to esophagomyotomy for achalasia does not improve or worsen clinical results.

Gastroesophageal reflux, quality of life, and satisfaction in patients with achalasia treated with open cardiomyotomy and partial fundoplication

BACKGROUND

Cardiomyotomy, often associated with an antireflux technique, is effective in the management of achalasia, although gastroesophageal reflux (GER) may occur after the procedure. Patient-centered measures, ie, health-related quality of life (HRQoL) and satisfaction, should be included in the evaluation of the patients.

METHODS

A study was made of the incidence of GER (symptoms, upper endoscopy and 24-hour pH monitoring), HRQoL (Short Form-36 Health Survey), and satisfaction after open-access cardiomyotomy and 180-degree anterior fundoplication in 28 consecutive patients, with a minimum postoperative follow-up of 12 months.

RESULTS

Mean age was 45 years (range 15 to 80) and 68% were female. In 8 subjects (all with heartburn) GER morbidity was present (4 with esophagitis and 4 with positive pH study), and 6 patients required proton pump inhibitors. Short Form-36 scores after surgery were similar to those found in the general population. Patient satisfaction was high and was more related to the absence of dysphagia than to the presence of GER symptoms.

CONCLUSIONS

Gastroesophageal reflux is relatively frequent after cardiomyotomy and partial fundoplication, although the efficacy of proton pump inhibitor treatment minimizes its clinical significance.

"Needlescopic" heller myotomy

MIS continues to evolve with the introduction of new techniques and technology. This report discusses the use of "needlescopic" technology in the surgical management of achalasia. Heller myotomy procedures performed between January 1, 1997, and July 1, 2000, were analyzed and the results of 14 needlescopic procedures were compared with 15 laparoscopic procedures. Demographic and short-term outcome data were compared for each group using chi2, Fisher exact, and Student t tests where appropriate. Both groups were similar in age and gender. However, the needlescopic group weighed less (72.2 vs. 83.5 kg; P = 0.05). Intraoperatively, the needlescopic procedures were shorter (98.2 vs. 131.9 minutes; P = 0.03). There were no conversions to open surgery or differences in the number of intraoperative complications for either group. Postoperatively, the groups had similar complications, time to normal diet, and analgesia requirements. Nonetheless, the needlescopic group had a shorter length of stay in hospital (1.1 vs. 2.0 days; P = 0.04). Needlescopic Heller myotomy appears to be a safe treatment option, resulting in a decreased length of stay and improved wound cosmesis.

[Heller's myotomy without fundoplication: a series of 123 patients]

INTRODUCTION

Surgical treatment of achalasia of lower oesophageal sphincter is Heller's myotomy, usually associated with a fundoplication due to an high risk of postoperative gastro-oesophageal reflux. The value of this fundoplication is discussed. The aim of this study was to evaluate retrospectively the results of Heller's myotomy without fundoplication but performed according to a precise technique preventing postoperative reflux.

PATIENTS AND METHODS

Between 1975 and 1999, 123 patients underwent Heller's myotomy without systematic fundoplication. Diagnosis of achalasia was performed clinically and confirmed by investigations: baryum meal, fibroscopy and manometry. Myotomy was performed through an abdominal approach in 117 (95%) patients. Dissection preserved fixity of abdominal oesophagus in all cases, particularly its posterior meso. Myotomy was performed on abdominal oesophagus but not below the cardia. Posterior fundoplication was associated in 2 patients.

RESULTS

One patient (0,8%) died from massive aspiration. Morbidity (1,6%) consisted in one peritonitis and one postoperative occlusion. At follow-up (mean = 5 years; range: 1-20), functional results were satisfying (excellent and good) in 112 (92%) patients. Seven patients (6%) developed postoperative reflux, including one who need surgical treatment. Dysphagia persisted in 3 patients (2%) who had to be reoperated.

CONCLUSION

Results of this series show that systematic fundoplication is not necessary in Heller's myotomy for achalasia of lower oesophageal sphincter.

Laparoscopic esophagomyotomy without an antireflux procedure for the treatment of achalasia

Various gastroenteric surgical procedures have been attempted laparoscopically. Laparoscopic esophagomyotomy (LE) with or without fundoplication, performed for achalasia, has gained popularity. In our clinic, LE (Heller's myotomy) was performed on six patients with achalasia. All patients underwent barium esophagography, endoscopy, and esophageal manometry for diagnosis. Extramucosal myotomy was started 6 cm above the cardioesophageal junction on the left anterolateral aspect of the esophagus and continued 1 cm below this area. Endoscopic control of the distal esophageal mucosa and the stomach was carried out under direct laparoscopic visualization following the completion of myotomy during the operation. LE was completed without complication in five patients. In one patient (16%), mucosal perforation occurred after myotomy during endoscopic control and was repaired with endostitches. There were no postoperative complications. The average hospital stay was 3 days. Three of the six patients agreed to 24-h pH monitoring, the results of which showed no evidence of reflux. All patients were completely symptom free in the postoperative period. The average preoperative lower esophageal sphincter pressure was 44 mm Hg, whereas in the early postoperative period and 6 months later, it was 11 mm Hg. There was no dysphagia or reflux esophagitis during the follow-up period (range 12 to 24 months). LE is associated with low morbidity and a high success rate, comparable with an open procedure, and can be done without an antireflux procedure.

Current therapies for achalasia: comparison and efficacy

Achalasia is a primary esophageal motor disorder of unknown etiology producing complaints of dysphagia, regurgitation, and chest pain. The current treatments for achalasia involve the reduction of lower esophageal sphincter (LES) pressure resulting in improved esophageal emptying. Calcium channel blockers and nitrates, once used as initial treatment strategy for early achalasia, are now only used in patients who are not candidates for pneumatic dilation or surgery and those not responding to botulinum toxin injections. By virtue of the more rigid balloons, the current pneumatic dilators are more effective and have better efficacy than the older more compliant balloons. The graded approach to pneumatic dilation using the Rigiflex balloons (3.0, 3.5, and 4.0 cm) are now the most commonly used nonsurgical means of treating patients with achalasia, resulting in symptom improvement in up to 90% of patients. Surgical myotomy, once with high morbidity and long hospital stay, can now be performed laparoscopically with similar efficacy to the open surgical approach (94% vs. 84%, respectively), reduced morbidity, and hospitalization time. Given the advances in both balloon dilation and laparoscopic myotomy, most patients with achalasia can now choose between these two equally efficacious treatment options. Botulinum toxin injection of the LES should be reserved for patients who cannot undergo balloon dilation and are not surgical candidates.

Efficacy of the transthoracic modified Heller myotomy in children with achalasia--a 21-year experience

From 1974 to 1995, 19 children with achalasia of the esophagus have been treated at our institution. Presenting symptoms included vomiting (n = 14), dysphagia (n = 13), failure to thrive (n = 6), and odynophagia (n = 1). Diagnosis was established by a barium swallow in 19, with eight also undergoing esophageal manometry. Six boys and 13 girls with an average age of 10 years (range, 1.3 to 17.6) underwent a transthoracic, modified anterior Heller esophagomyotomy (HM). Five underwent a concomitant, modified, Belsey fundoplication (BF). Follow-up ranging from 6 months to 21 years (mean, 9 years) was accomplished in all 19 patients by both office visits and telephone interviews. Early postoperative follow-up showed initial swallowing difficulty in two (14%) patients with a HM alone and in four out of five (80%) patients treated with a HM and BF. All patients (n = 5) with a HM and BF and one with a HM alone required one esophageal dilation during the first postoperative year. These initial swallowing difficulties resolved in all six patients during this first postoperative year. Late postoperative follow-up, however, indicates occasional, mild dysphagia in two out of five with an HM and BF resulting in complete relief of presenting symptoms in 17 of the 19 patients (90%). All patients rated their overall result as either excellent (68%) or good (32%) with none rating it as fair or poor. None of the 19 patients had clinical evidence of gastroesophageal reflux, although five patients had evidence of nonpathologic reflux noted during upper gastrointestinal x-ray. Recurrent vomiting, asthma, wheezing, or esophagitis symptoms have not been reported by any patients. No patients required reoperation, and there were no deaths or postoperative complications. Modified Heller esophagomyotomy is safe (0% mortality) and effective (90% relief of symptoms) in children with achalasia. A concurrent modified Belsey fundoplication results in early and late mild postoperative dysphagia that was responsive to esophageal dilation. The transthoracic, modified Heller esophagomyotomy without a fundoplication is currently our treatment of choice for achalasia in children.