Robert E. Marsh

The preoperative predictability of the short esophagus in patients with stricture or paraesophageal hernia.

AbstractBackground: Esophageal shortening is a known complication of advanced gastroesophageal reflux disease that may preclude a tension-free antireflux procedure. A retrospective analysis was performed to test the accuracy of preoperative testing. Methods: From September 1993 to December 1998, 39 patients underwent esophageal mobilization with intraoperative length assessment. Patients were selected on the basis of irreducible hiatal hernia, stricture formation, or both. Patients in the upright position with a fixed hiatal hernia larger than 5 cm on an esophagram were considered to have a short esophagus. Manometric length two standard deviations below the mean for height was considered abnormally short. Results: In 31 patients, intraoperative mobilization was sufficient to allow the gastroesophageal junction to lie 2 cm below the diaphragmatic crus, so no esophageal-lengthening procedure was required. Eight patients with a short esophagus required an esophageal-lengthening procedure after complete mobilization. Two patients subsequently underwent intrathoracic migration of the gastroesophageal junction (GEJ), with recurrence of symptoms and required gastroplasty during the second surgery. An esophagram had a sensitivity of 66% and a positive predictive value of 37%, whereas manometric length had a sensitivity of 43% and a positive predictive value of 25% for the diagnosis of short esophagus. The preoperative endoscopic finding of either a stricture or Barretts esophagus was the most sensitive test for predicting the need for a lengthening procedure. Conclusions: Manometry and esophagraphy are not reliable predictors of the short esophagus. Additional tests and/or tests combined with other parameters are needed.

Symptom Predictability of Reflux-Induced Respiratory Disease

Gastroesophageal reflux disease (GERD) often is associated with pulmonary problems such as asthma as well as recurrent and nocturnal cough. Dual-probe 24-hr pH monitoring may assist in establishing a correlation between these symptoms and GERD-related symptoms. To determine if any specific symptom was predictive of aspiration, this study was undertaken. Ambulatory dual-probe esophageal pH monitoring was performed on 133 patients who had upper airway and additional symptoms for GERD. All patients had esophageal manometric studies of the lower esophageal sphincter (LES), the upper esophageal sphincter (UES), and the esophageal body before dual-probe pH monitoring was performed. Using two assembled glass probes, the distal and the proximal sensors were placed 5 cm above the proximal border of the LES and 1 cm below the lower border of the UES, respectively. Patients were classified into three groups: proximal and distal probe positive (group I), proximal probe negative and distal probe positive (group II) and proximal and distal probe negative (Group III) Upper airway and additional symptoms plus manometry results of the LES, body and UES study were compared between groups. In addition, positive distal probe patients (groups I and II) were compared for distal fraction of time at pH < 4 and number of reflux episodes at each probe position. A positive distal probe result was defined as an abnormal DeMeester score (>14.8). A proximal probe test result was considered positive if percent time pH < 4.0 was >1.1 for total, 1.7 for upright, and 0.6 for supine positions. The ages of the subjects ranged from 18 to 83 years (mean age: 50.5 ± 1.5 years). Groups I, II, and III included 16 patients, 38 patients, and 79 patients, respectively. Group I had a significantly higher incidence of nocturnal cough than the other two groups. (P < 0.05). The manometric data revealed between groups that LES pressure (LESP) for groups I and II was significantly lower than LESP for group III (P = 0.003). Cricoid pressure, pharyngeal pressure, length, and relaxation of UES were not different between groups. Fraction of reflux time for group I was significantly higher than for group II in the supine position and at mealtime (P < 0.05). The number of reflux episodes for group I was significantly higher at meal time (P < 0.01). In conclusion, nocturnal cough is strongly predictive of proximal esophageal reflux. Proximal reflux episodes are significantly more frequent in the supine position and correlate well with the high predictive value of nocturnal cough.

Left side thoracoscopically assisted gastroplasty: a new technique for managing the shortened esophagus.

Abstract Laparoscopic antireflux surgery is the procedure of choice for gastroesophageal reflux disease (GERD). However, many clinicians have reservations about its application in patients with complicated GERD, notably those with esophageal shortening. In this report, we present our experience with the laparoscopic management of the shortened esophagus. A total of 235 patients with primary GERD underwent laparoscopic antireflux procedures, 38 of whom were suspected preoperatively to have a shortened esophagus. Of the 235 patients, 8 (3.4%) needed a left thoracoscopically assisted gastroplasty in addition to laparoscopic Toupet repair (n= 4) or Nissen fundoplication (n= 4). Complications included pleural effusion (n= 1), pneumothorax (n= 2), and minor atelectasis (n= 1). The average hospital stay was 3 days. Results were satisfactory in 7 of 8 patients, with a mean follow-up of 20.2 months (range, 9–34 months). The surgical management of the shortened esophagus is difficult. However, the role of minimally invasive techniques is justified. Early results are appealing, with less morbidity, satisfactory control of GERD related symptoms, and a shortened hospital stay.

Manometric and radiographic verification of esophageal body decompensation for patients with achalasia

BACKGROUND Although morphologic, radiographic, and manometric features of achalasia have been well defined, it has not been established by careful retrospective analysis whether achalasia is a progressive disorder resulting in complete decompensation. STUDY DESIGN To verify the hypothesis that achalasia is a progressive disease, we retrospectively investigated manometric, radiographic, and symptomatic data in patients with achalasia. Sixty-three patients (36 women and 27 men) with a median age of 44 years (range 11 to 79 years) were evaluated. The duration of symptoms ranged from 1 to 442 months, with a median of 48 months. Patients were divided into four groups according to the duration of symptoms: 36 patients with less than 5 years, 11 with 5 to 10 years, 9 with 10 to 15 years, and 7 with 15 years or more. RESULTS Contraction pressures of the esophageal body decreased significantly at every level when the duration of symptoms increased (p < 0.04). The percentage of simultaneous waves in the esophageal body rose as the duration of symptoms increased. All waves were synchronous in every patient who had had symptoms for more than 15 years. The maximal width of the esophageal body measured on esophagram became greater with an increase in the duration of symptoms, but this measurement did not reach statistical significance (p = 0.063). The tortuosity of the esophagus, measured by the maximal angle of the esophageal axis, was significantly greater in patients with a longer duration of symptoms (p < 0.02). The type of symptoms was not associated with the duration of symptoms. CONCLUSIONS Achalasia is a progressive disease, as verified by manometric and radiographic findings. The classification of esophageal motor function expressed by amplitude of contraction pressure and angle of tortuosity is objective and useful. Classification of achalasia by duration of symptoms may be important in treatment selection and effectiveness.

Surgery for achalasia: 1998.

Technical controversies abound regarding the surgical treatment of aehalasia. To determine the value of a concomitant antireflux procedure, the best antireflux procedure, the correct length for gastric myotomy, the optimal surgical approach (thoracic or abdominal), and the equivalency of minimally invasive surgery, a literature review was carried out. The review is based on 23 articles on open transabdominal or transthoracic myotomy, 14 articles on laparoscopic myotomy, and four articles on thoracoscopic myotomy. Postoperative results of traditional open thoracic or transabdominal myotomy as determined by symptomatology were better with fundoplieation than without fundoplication. The incidence of postoperative reflux as proved by pH monitoring was high in patients who had an open transabdominal myotomy without fundoplication. The type of antireflux procedure used and the length of gastric myotomy had little effect on results. The results of transthoracic Heller myotomy do not require a concomitant fundoplieation. Laparoscopic and thoracoseopic myotomy had excellent results at short-term follow-up. A fundoplication must be added if the myotomy is performed transabdominally. A randomized prospective study is required to determine the best fundoplication and the extent of gastric myotomy. Although minimally invasive surgery for aehalasia has excellent initial results, longer follow-up in a larger population of patients is needed.

A combined laparoscopic-endoscopic method of assessment to prevent the complications of short esophagus

Abstract. As antireflux surgery has been used increasingly for gastroesophageal reflux disease (GERD), a need has arisen for an accurate method to assess esophageal length. There are a number of preoperative tests that can help surgeons to establish the presence of a short esophagus, but intraoperative assessment after esophageal mobilization is the standard method. In this era of laparoscopic surgery, the surgeon mobilizes the esophagus extensively from the abdomen and then determines if mobilization is sufficient. We report an intraoperative technique that combines laparoscopic with endoscopic methods to determine the position of the gastroesophageal junction. Because two physicians are required, there is additional operating room time, resulting in increased costs. However, these costs are offset by the assurance that the complications of the short esophagus can be avoided. With experience, modifications were made, resulting in the technique described herein.

Laparoscopic repair of a Morgagni hernia.

Morgagni hernias are unusual diaphragmatic hernias which usually present in adulthood. They have traditionally been repaired through transabdominal or transthoracic approaches. The authors present a case of a laparoscopic repair of a Morgagni hernia in a 52-year-old female. A tension free repair of the defect was accomplished utilizing Goretex (W.L. Gore & Associates, Inc., North Elkton, MD) mesh. The patient had an uneventful recovery and is asymptomatic at 6 months follow-up. The etiology, diagnosis and traditional surgical approaches to this problem are discussed. A technique for laparoscopic repair of a Morgagni hernia is described. The literature on the laparoscopic repair of a Morgagni hernia is reviewed and different operative techniques are discussed.

Correlations between esophageal diseases and manometric length: a study of 617 patients

The purpose of this study was to measure the length of the esophagus and assess its relationship to sex, weight, age, height, and various esophageal disorders. A retrospective analysis was undertaken of 617 esophageal manometric studies, which included 51 normal control subjects (27 males and 24 females) and 566 patients (297 males and 269 females) with esophageal disorders (50 with achalasia, 6 with diffuse esophageal spasm, 64 with strictures, 38 with nutcracker esophagus, 398 with gastroesophageal reflux disease [GERD] with positive 24-hour pH monitoring, and 66 with possible GERD but negative 24-hour pH monitoring). Manometry was performed in all of them by the station pull-through technique. The length of the esophagus was defined as the distance between the proximal end of the upper esophageal sphincter and the distal end of the lower esophageal sphincter. In the control group the mean (± standard deviation) length of the esophagus was 28.3±2.41 cm. In patients with esophageal disorders the mean length of the esophagus was 28.0 ±2.87 cm. Length of the esophagus is related to height but not to weight, sex, age, diffuse esophageal spasm, or nutcracker esophagus. Achalasia is associated with a longer esophagus, and GERD is associated with a shorter esophagus. Stricture is associated with a shorter esophagus, but this is in part due to the association between stricture and GERD. Patients with possible GERD but negative 24-hour pH monitoring have an esophageal length similar to that of GERD patients with positive 24-hour pH monitoring. Patients with GERD and stricture formation showed esophageal shortening in shorter patients. Achalasia, GERD, and GERD with stricture formation influence esophageal length. GERD-related strictures shorten the esophagus more significantly in short patients.

Does the duration of gastroesophageal reflux disease and degree of acid reflux correlate with esophageal function? A retrospective analysis of 768 patients

To reconfirm that the duration of symptoms is not associated with esophageal motility in patients with gastroesophageal reflux disease (GERD), esophageal manometric data from 768 patients with GERD were retrospectively analyzed with relation to the duration of symptoms. GERD was defined by positive acid reflux test results monitored by ambulatory 24-hour pH monitoring. Correlation of the duration of symptoms with esophageal body pressures, the presence of dysmotility determined by simultaneous waves, average resting pressure of the lower esophageal sphincter (LES), and abdominal and overall lengths of the LES were statistically analyzed. The median duration of the symptoms was 60 months (range, 1-600). Duration of symptoms was not associated with contraction pressures of the esophageal body at 3 and 8 cm above the LES (r = -0.070 and -0.063, respectively). There was no correlation between LES pressures, LES lengths, or the percentage of simultaneous waves and duration of symptoms. Stricture formation is related to decreased distal esophageal function in GERD patients. In conclusion, the duration of GERD has little influence on esophageal body and LES function.

A new form of access for endo-organ surgery. The initial experience with percutaneous endoscopic gastrostomy.

AbstractBackground: Intraluminal gastric surgery provides a new treatment option for various disease processes. This study assesses the safety of a new large-diameter percutaneous endoscopic gastrostomy (PEG) for intraluminal surgery. Methods: Investigators at six institutions were asked to complete a standard questionnaire to assess the difficulties associated with the assembly and introduction of the PEG, plus intraoperative and postoperative problems related to placement of the device. Results: In terms of assembly; 1.9% of respondents reported difficulty obtaining complete vacuum of the balloon tip, and 3.8% had difficulty fitting the graduated dilator to the balloon-tipped cannula. Difficulties associated with introduction of the PEG included disengagement of the dilator from the balloon-tipped cannula (0%), extraction of the dilator-port assembly (0%), difficult PEG pullout (1.9%), abdominal wall bleeding (0%), and difficult PEG dilator separation (7.5%). Intraoperatively, 7.5% of respondents reported inadequate skin bolster fitting, 1.9% had CO2 leakage into the peritoneal cavity, 0% had inadvertent PEG extraction, and 0% reported injury to the esophagus, colon, or small intestine. Postoperatively, there was a 9.4% rate of wound infection, a 1.9% rate of gastrocutaneous fistula, and a 1.9% rate of esophageal, colon, or small intestine injury. Conclusions: The large-diameter PEG is safe and effective for endo-organ surgery. Additional preventive measures for PEG site infection should be investigated.