Management of recurrent symptoms after per-oral endoscopic myotomy in achalasia.

BACKGROUND AND AIMS: Per-oral endoscopic myotomy (POEM) has been rapidly gaining ground as a treatment for achalasia. Although POEM is a safe and effective treatment, a subset of patients has persistent or recurrent symptoms after POEM. This study aimed to examine the efficacy of different retreatments after failed POEM. METHODS: POEM was performed on 441 patients with achalasia at 3 tertiary-care hospitals between 2010 and 2015. A review of prospectively collected data was conducted. All patients with achalasia with significant persistent or recurrent symptoms within 3 years after POEM, defined as an Eckardt symptom score >3, were included. RESULTS: Forty-three of 441 patients (9.8%) had persistent or recurrent symptoms after POEM, of which 34 (8%) received 1 or more retreatments. Retreatment with laparoscopic Heller myotomy and retreatment with POEM showed a modest efficacy of 45% and 63%, respectively, whereas pneumatic dilatation showed a poor efficacy of only 0% to 20%, depending on the size of the balloon. Male patients were more likely to have retreatment failure than female patients (P = .038). CONCLUSIONS: In patients with achalasia with persistent or recurrent symptoms after failed POEM, retreatment with laparoscopic Heller myotomy or retreatment with POEM has a higher efficacy than retreatment with pneumatic dilatations. Failure of retreatment occurred more often in male patients.

Complications of botulinum toxin injections for treatment of esophageal motility disorders†.

In achalasia and spastic esophageal motility disorders, botulinum toxin (botox) injection is considered an effective and low-risk procedure for short-term symptom relief. It is mainly offered to medically high-risk patients. However, no analysis of risks of botox injections has been performed. To determine the incidence and risk factors of procedure-related complications after esophageal botox injections, we analyzed the records of all patients undergoing botox injection therapy for esophageal motility disorders at four university hospitals in Europe and North America between 2008 and 2014. Complications were assigned grades according to the Clavien-Dindo classification. In 386 patients, 661 botox treatments were performed. Main indications were achalasia (51%) and distal esophageal spasm (DES) (30%). In total, 52 (7.9%) mild complications (Clavien-Dindo grade I) were reported by 48 patients, the majority consisting of chest pain or heartburn (29 procedures) or epigastric pain (5 procedures). No ulceration, perforation, pneumothorax, or abscess were reported. One patient died after developing acute mediastinitis (Clavien-Dindo grade V) following injections in the body of the esophagus. In univariate logistic regression, younger age was associated with an increased risk of complications (OR 1.43, 95%CI 1.03-1.96). Treatment for DES, injections into the esophageal body, more injections per procedure, more previous treatments and larger amount of injected botulinum toxin were no risk factors for complications. Esophageal botox injection seems particularly appropriate for high-risk patients due to low complication rate. However, it should not be considered completely safe, as it is associated with rare side effects that cannot be predicted.

Per-oral Endoscopic Myotomy (POEM) After the Learning Curve: Durable Long-term Results With a Low Complication Rate.

OBJECTIVE: We aimed to report long-term outcomes for patients undergoing per-oral endoscopic myotomy (POEM) after our initial 15-case learning curve. BACKGROUND: POEM has become an established, natural-orifice surgical approach for treating esophageal motility disorders. To date, published outcomes and comparative-effectiveness studies have included patients from the early POEM experience. METHODS: Consecutive patients undergoing POEM after our initial 15 cases, with a minimum of 1-year postoperative follow-up, were included. Treatment success was defined as an Eckardt score ≤3 without reintervention. Gastroesophageal reflux was defined by abnormal pH-testing or reflux esophagitis >Los Angeles grade A. RESULTS: Between January 2012 and March 2015, 115 patients underwent POEM at a single, high-volume center. Operative time was 101 ±â€Š29 minutes, with 95% (109/115) of patients discharged on postoperative day 1. Clavien-Dindo grade III complications occurred in 2.7%, one of which required diagnostic laparoscopy to rule out Veress needle injury to the gall bladder. The rate of grade I complications was 15.2%. At an average of 2.4 years post-POEM (range 12-52 months), the overall success rate was 92%. Objective evidence of reflux was present in 40% for all patients and 33% for patients with a body mass index <35 kg/m and no hiatal hernia. CONCLUSIONS: POEM performed by experienced surgeons provided durable symptomatic relief in 94% of patients with nonspastic achalasia and 90% of patients with type 3 achalasia/spastic esophageal motility disorders, with a low rate of complications. The rate of gastroesophageal reflux was comparable with prior studies of both POEM and laparoscopic Heller myotomy.

The Functional Lumen Imaging Probe Detects Esophageal Contractility Not Observed With Manometry in Patients With Achalasia.

BACKGROUND & AIMS: The functional lumen imaging probe (FLIP) could improve the characterization of achalasia subtypes by detecting nonocclusive esophageal contractions not observed with standard manometry. We aimed to evaluate esophageal contractions during volumetric distention in patients with achalasia using FLIP topography. METHODS: Fifty-one treatment-naive patients with achalasia, defined and subclassified by high-resolution esophageal pressure topography, and 10 asymptomatic individuals (controls) were evaluated with the FLIP during endoscopy. During stepwise distension, simultaneous intrabag pressures and 16 channels of cross-sectional areas were measured; data were exported to software that generated FLIP topography plots. Esophageal contractility was identified by noting periods of reduced luminal diameter. Esophageal contractions were characterized further by propagation direction, repetitiveness, and based on whether they were occluding or nonoccluding. RESULTS: Esophageal contractility was detected in all 10 controls: 8 of 10 had repetitive antegrade contractions and 9 of 10 had occluding contractions. Contractility was detected in 27% (4 of 15) of patients with type I achalasia and in 65% (18 of 26, including 9 with occluding contractions) of patients with type II achalasia. Contractility was detected in all 10 patients with type III achalasia; 8 of these patients had a pattern of contractility that was not observed in controls (repetitive retrograde contractions). CONCLUSIONS: Esophageal contractility not observed with manometry can be detected in patients with achalasia using FLIP topography. The presence and patterns of contractility detected with FLIP topography may represent variations in pathophysiology, such as mechanisms of panesophageal pressurization in patients with type II achalasia. These findings could have implications for additional subclassification to supplement prediction of the achalasia disease course.

High-Resolution Impedance Manometry Metrics of the Esophagogastric Junction for the Assessment of Treatment Response in Achalasia.

OBJECTIVES: We aimed to evaluate the value of novel high-resolution impedance manometry (HRIM) metrics, bolus flow time (BFT), and esophagogastric junction (EGJ) contractile integral (CI), as well as EGJ pressure (EGJP) and the integrated relaxation pressure (IRP), as indicators of treatment response in achalasia. METHODS: We prospectively evaluated 75 patients (ages 19-81, 32 female) with achalasia during follow-up after pneumatic dilation or myotomy with Eckardt score (ES), timed-barium esophagram (TBE), and HRIM. Receiver-operating characteristic (ROC) curves for good symptomatic outcome (ES≤3) and good radiographic outcome (TBE column height at 5 min<5 cm) were generated for each potential predictor of treatment response (EGJP, IRP, BFT, and EGJ-CI). RESULTS: Follow-up occurred at a median (range) 12 (3-291) months following treatment. A total of 49 patients had good symptomatic outcome and 46 had good radiographic outcome. The area-under-the-curves (AUCs) on the ROC curve for symptomatic outcome were 0.55 (EGJP), 0.62 (IRP), 0.77 (BFT) and 0.56 (EGJ-CI). The AUCs for radiographic outcome were 0.64 (EGJP), 0.48 (IRP), 0.73 (BFT), and 0.65 (EGJ-CI). Optimal cut-points were determined as 11 mm Hg (EGJP), 12 mm Hg (IRP), 0 s (BFT), and 30 mm Hg•cm (EGJ-CI) that provided sensitivities/specificities of 57%/46% (EGJP), 65%/58% (IRP), 78%/77% (BFT), and 53%/62% (EGJ-CI) to predict symptomatic outcome and 57%/66% (EGJP), 57%/41% (IRP), 76%/69% (BFT), and 57%/66% (EGJ-CI) to predict radiographic outcome. CONCLUSIONS: BFT, a novel HRIM metric, provided an improved functional assessment over manometric measures of EGJP, IRP, and EGJ-CI at follow-up after achalasia treatment and may help direct clinical management.

Evaluation of the need for routine esophagram after peroral endoscopic myotomy (POEM).

BACKGROUND: Peroral endoscopic myotomy (POEM) is a novel surgical option for the treatment of achalasia. Most centers perform a routine esophagram on postoperative day (POD) #1 to rule esophageal perforation and leaks. In this study, we sought to determine the clinical utility of routine contrast studies post-POEM. METHODS: POEM was performed using an anterior submucosal tunnel and selective myotomy of the circular muscle layer. A routine contrast esophagram was obtained on POD #1. We conducted a retrospective review of the radiologists' interpretations of these studies and compared them to patient's clinical course. RESULTS: Seventy-eight patients were included. Among these, two complications occurred. One patient was non-compliant with postoperative nil per os orders and developed epigastric pain suspicious for a leak that was demonstrated on esophagram. Another patient had subcutaneous emphysema on POD #1 esophagram, a finding that was also present on physical examination, without esophageal leakage. Another esophagram in an asymptomatic patient was suspicious for submucosal tunnel hematoma which prompted a return to the operating room with negative results. Overall, 56 patients had abnormal studies. POD #1 esophagram demonstrated a sensitivity of 100 % and specificity of 45 % in identifying clinically significant complications. CONCLUSIONS: In this series, we found routine esophagram to have a high sensitivity but a very low specificity in detecting clinically significant complications. Routine esophagram after POEM may not be necessary.

The effect of incremental distal gastric myotomy lengths on EGJ distensibility during POEM for achalasia.

BACKGROUND: During peroral esophageal myotomy (POEM) for the treatment of achalasia, the optimal distal gastric myotomy length is unknown. In this study, we used a functional lumen imaging probe (FLIP) to intraoperatively measure the effect of variable distal myotomy lengths on esophagogastric junction (EGJ) distensibility. METHODS: EGJ distensibility index (DI) (minimum cross-sectional area divided by intrabag pressure) was measured with FLIP after each operative step. Each patient's myotomy was performed in four increments from proximal to distal: (1) an esophageal myotomy (from 6 cm proximal to the EGJ to 1 cm proximal to it), (2) a myotomy ablating the lower esophageal sphincter (LES) complex (from 1 cm proximal to the EGJ to 1 cm distal to it), (3) an initial gastric extension (from 1 cm distal to the EGJ to 2 cm distal), and (4) a final gastric extension (from 2 cm distal to the EGJ to 3 cm distal). RESULTS: Measurements were taken in 16 achalasia patients during POEM. POEM resulted in an overall increase in DI (pre 1.2 vs. post 7.2 mm(2)/mmHg, p < .001). Initial creation of the submucosal tunnel resulted in a threefold increase in DI (1.2 vs. 3.6 mm(2)/mmHg, p < .001). When the myotomy was then performed in a stepwise fashion from proximal to distal, the initial esophageal myotomy component had no effect on DI. Subsequent myotomy extension across the LES complex resulted in an increase in DI, as did the initial gastric myotomy extension (to 2 cm distal to the EGJ). The final gastric myotomy extension (to 3 cm distal) had no further effect. CONCLUSIONS: During POEM, creation of the submucosal tunnel prior to myotomy resulted in a marked improvement in EGJ physiology. Myotomy extension across the LES complex and to 2 cm onto the gastric wall resulted in the normalization of EGJ distensibility, whereas subsequent extension to 3 cm distal to the EGJ did not increase compliance further.

The impact of an enhanced recovery after surgery pathway for video-assisted and robotic-assisted lobectomy on surgical outcomes and costs: a retrospective single-center cohort study.

To determine the impact of enhanced recovery after surgery (ERAS) pathway implementation on outcomes and cost of robotic- and video-assisted thoracoscopic (RATS and VATS) lobectomy. Retrospective review of 116 consecutive VATS and RATS lobectomies in the pre-ERAS (Oct 2018-Sep 2019) and ERAS (Oct 2019-Sep 2020) period. Multivariate analysis was used to determine the impact of ERAS and operative approach alone, and in combination, on length of hospital stay (LOS) and overall cost. Operative approach was 49.1% VATS, 50.9% RATS, with 44.8% pre-ERAS, and 55.2% ERAS (median age 68, 65.5% female). ERAS patients had shorter LOS (2.22 vs 3.45 days) and decreased total cost ($15,022 vs $20,155) compared with non-ERAS patients, while RATS was associated with decreased LOS (2.16 vs 4.19 days) and decreased total cost ($14,729 vs $20,484) compared with VATS. The combination of ERAS + RATS showed the shortest LOS and the lowest total cost (1.35 days and $13,588, P < 0.001 vs other combinations). On multivariate analysis, ERAS significantly decreased LOS (P = 0.001) and total cost (P = 0.003) compared with pre-ERAS patients; RATS significantly decreased LOS (P < 0.001) and total cost (P = 0.004) compared with VATS approach. ERAS implementation and robotic approach were independently associated with LOS reduction and cost savings in patients undergoing minimally invasive lobectomy. A combination of ERAS and RATS approach synergistically decreases LOS and overall cost.

Feasibility and efficacy of cryoneurolysis analgesia in robotic-assisted thoracoscopic surgery (CARTS): a pilot study.

Opioid therapy has been the mainstay therapy of post-operative pain management in thoracic surgery patients. With the high incidence of chronic pain in thoracic surgery patients and adverse effects of opioids, we examined the safety and efficacy of cryoneurolysis as an adjunct for narcotic-free pain management in robotic-assisted thoracoscopic lobectomies. Ten consecutive patients undergoing robotic-assisted (DaVinci) pulmonary resection and cryoneurolysis were compared to ten patients managed without intraoperative cryoneurolysis. All patients received multimodal pain regimen including paravertebral blocks as per our institutional enhanced recovery pathway. Patients with chronic pain and chronic opioid use were excluded. We compared inpatient and outpatient opioid consumption measured in morphine equivalents (mme), incidence of opioid-free outpatient recovery, and adverse events. The two groups did not differ significantly in terms of baseline demographics. Both inpatient (88.13 vs 26.92 mme) and outpatient (118.5 vs 34.5 mme) use of narcotics were significantly lower in the cryoneurolysis group (p < 0.05) with seven of ten patients receiving cryoneurolysis able to recover without the use of opioids in the outpatient setting, compared to two in the control group. One patient reported post-operative neuralgia in each cryoneurolysis and control group. There were no readmissions in either group and mean length of stay was identical at 1.7 days in control group and 1.1 days in experimental group (p = 0.33). The use of intraoperative intercostal cryoneurolysis may safely reduce the utilization of outpatient opioids in patients undergoing robotic-assisted thoracoscopic surgery. A randomized controlled trial is warranted to validate these findings in a larger cohort of patients.

When does testing for GERD become cost effective in an integrated health network?

BACKGROUND: Gastroesophageal reflux (GERD) is the most common gastrointestinal disorder, affecting as many as 14% of the US population. Rising rates of esophageal adenocarcinoma are seen in this population, and chronic proton pump inhibitor (PPI) use does not normalize cancer risk. It has also been demonstrated that up to one-third of patients on PPI therapy did not actually have GERD and could be taken off the medication. These facts form the basis for a quality-assurance study of care provided to patients in an integrated health care network who were on high-dose, long-term PPI therapy. METHODS: A cost-benefit analysis of patients who were on double-dose PPI therapy for more than 6 months was performed. Pharmacy, facility, physician reimbursement, and radiologic data from a cohort who were both primary-care patients and insured in our system were utilized. RESULTS: Two hundred and twenty-four patients were prescribed a double dose of this medication for over 6 months. Utilizing a 4.5% discount rate, our break-even analysis showed that Bravo testing [with esophagogastroduodenoscopy (EGD)] needed to identify those patients who could be taken off PPI therapy paid for itself in 33 months. Bravo + EGD + manometry testing needed to screen for other possible pathologies paid for itself in 38 months. Bravo + barium swallow + EGD testing to screen patients for possible esophageal adenocarcinoma paid for itself in 42 months. Bravo + barium swallow + manometry + EGD testing paid for itself in 47 months. CONCLUSIONS: Significant savings can be realized through early use of upper endoscopy, Bravo testing, barium swallow, and manometry to identify patients that are taking double-dose PPIs unnecessarily based on presumptive diagnosis of GERD. This early testing also has the potential to diagnose a variety of other clinically important pathologic conditions more readily.

Resident Autonomy in the Operating Room: Expectations Versus Reality.

BACKGROUND: There is concern about graduating thoracic trainees' independent operative skills due to limited autonomy in training. This study compared faculty and trainee expected levels of autonomy with intraoperative measurements of autonomy for common cardiothoracic operations. METHODS: Participants underwent frame-of-reference training on the 4-point Zwisch scale of operative autonomy (show and tell → active help → passive help → supervision only) and evaluated autonomy in actual cases using the Zwisch Me!! mobile application. A separate "expected autonomy" survey elicited faculty and resident perceptions of how much autonomy a resident should have for six common operations: decortication, wedge resection, thoracoscopic lobectomy, coronary artery bypass grafting, aortic valve replacement, and mitral valve repair. RESULTS: Thirty-three trainees from 7 institutions submitted evaluations of 596 cases over 18 months (March 2015 to September 2016). Thirty attendings subsequently provided their evaluation of 476 of those cases (79.9% response rate). Expected autonomy surveys were completed by 21 attendings and 19 trainees from 5 institutions. The six operations included in the survey constituted 47% (226 of 476) of the cases evaluated. Trainee and attending expectations did not differ significantly for senior trainees. Both groups expected significantly higher levels of autonomy than observed in the operating room for all six types of cases. CONCLUSIONS: Although faculty and trainees both expect similar levels of autonomy in the operating room, real-time measurements of autonomy show a gap between expectations and reality. Decreasing this gap will require a concerted effort by both faculty and residents to focus on the development of independent operative skills.

The Effect of Gender on Resident Autonomy in the Operating room.

OBJECTIVE: Discrimination against women training in medicine and surgery has been subjectively described for decades. This study objectively documents gender differences in the degree of autonomy given to thoracic surgery trainees in the operating room. DESIGN: Thoracic surgery residents and faculty underwent frame of reference training on the use of the 4-point Zwisch scale to measure operative autonomy. Residents and faculty then submitted evaluations of their perception of autonomy granted for individual operations as well as operative difficulty on a real-time basis using the "Zwisch Me!!" mobile application. Differences in autonomy given to male and female residents were elucidated using chi-square analysis and ordered logistic regression. SETTING: Seven academic medical centers with thoracic surgery training programs. PARTICIPANTS: Volunteer thoracic surgery residents in both integrated and traditional training pathways and their affiliated cardiothoracic faculty. RESULTS: Residents (n = 33, female 18%) submitted a total of 596 evaluations to faculty (n = 48, female 12%). Faculty gave less autonomy to female residents with only 56 of 184 evaluations (30.3%) showing meaningful autonomy (passive help or supervision only) compared to 107 of 292 evaluations (36.7%) at those levels for male residents (p = 0.02). Resident perceptions of autonomy showed even more pronounced differences with female residents receiving only 38 of 197 evaluations (19.3%) with meaningful autonomy compared to 133 of 399 evaluations (33.3%) for male residents (p < 0.001). Potential influencing factors explored included attending gender and specialty, case type and difficulty, and resident level of training. In multivariate analysis, only case difficultly, resident gender, and level of training were significantly related to autonomy granted to residents. CONCLUSIONS: Evaluations of operative autonomy reveal a significant bias against female residents. Faculty education is needed to encourage allowing female residents more operative autonomy.

Quality of Operative Performance Feedback Given to Thoracic Surgery Residents Using an App-Based System.

OBJECTIVE: Residents frequently report inadequate feedback both in quantity and quality. The study evaluates the quality of faculty feedback about operative performance given using an app-based system. DESIGN: Residents requested operative performance evaluation from faculty on a real-time basis using the "Zwisch Me!!" mobile application which allows faculty to provide brief written feedback. Qualitative analysis of feedback was performed using grounded theory. SETTING: The 7 academic medical centers with thoracic surgery training programs. PARTICIPANTS: Volunteer thoracic surgery residents in both integrated and traditional training pathways and their affiliated cardiothoracic faculty. RESULTS: Residents (n = 33) at 7 institutions submitted a total of 596 evaluations to faculty (n = 48). Faculty acknowledged the evaluation request in 476 cases (80%) and in 350 cases (74%) provided written feedback. Initial open coding generated 12 categories of feedback type. We identified 3 overarching themes. The first theme was the tone of the feedback. Encouraging elements were identified in 162 comments (46%) and corrective elements in 230 (65%). The second theme was the topic of the feedback. Surgical technique was the most common category at 148 comments (42.2%) followed by preparation for case (n = 69, 19.7%). The final theme was the specificity of the feedback. Just over half of comments (n = 190, 54.3%) contained specific feedback, which could be applied to future cases. However, 51 comments (14.6%) contained no useful information for the learners. CONCLUSIONS: An app-based system resulted in thoracic surgery residents receiving identifiable feedback in a high proportion of cases. In over half of comments the feedback was specific enough to allow improvement. Feedback was better quality when addressing error prevention and surgical technique but was less useful when addressing communication, flow of the case, and assisting. Faculty development around feedback should focus on making feedback specific and actionable, avoiding case descriptions, or simple platitudes.

Measuring Error Identification and Recovery Skills in Surgical Residents.

BACKGROUND: Although error identification and recovery skills are essential for the safe practice of surgery, they have not traditionally been taught or evaluated in residency training. This study validates a method for assessing error identification and recovery skills in surgical residents using a thoracoscopic lobectomy simulator. METHODS: We developed a 5-station, simulator-based examination containing the most commonly encountered cognitive and technical errors occurring during division of the superior pulmonary vein for left upper lobectomy. Successful completion of each station requires identification and correction of these errors. Examinations were video recorded and scored in a blinded fashion using an examination-specific rating instrument evaluating task performance as well as error identification and recovery skills. Evidence of validity was collected in the categories of content, response process, internal structure, and relationship to other variables. RESULTS: Fifteen general surgical residents (9 interns and 6 third-year residents) completed the examination. Interrater reliability was high, with an intraclass correlation coefficient of 0.78 between 4 trained raters. Station scores ranged from 64% to 84% correct. All stations adequately discriminated between high- and low-performing residents, with discrimination ranging from 0.35 to 0.65. The overall examination score was significantly higher for intermediate residents than for interns (mean, 74 versus 64 of 90 possible; p = 0.03). CONCLUSIONS: The described simulator-based examination with embedded errors and its accompanying assessment tool can be used to measure error identification and recovery skills in surgical residents. This examination provides a valid method for comparing teaching strategies designed to improve error recognition and recovery to enhance patient safety.

Targeting the Sympathetic Chain for Primary Hyperhidrosis: An Evidence-Based Review.

Large case series and randomized trials over the past 25 years have consistently demonstrated thoracoscopic interruption of the sympathetic chain to be a safe and effective treatment of focal primary hyperhidrosis. The surgical technique has evolved toward less-invasive and less-extensive procedures in an effort to minimize perioperative morbidity and effectively balance postoperative compensatory sweating with symptomatic relief. This review summarizes available evidence regarding the surgical approach and the optimal level of interruption of the sympathetic chain based on a patient's presenting distribution of pathologic sweating.

Early esophagram in per-oral endoscopic myotomy (POEM) for achalasia does not predict long-term outcomes.

BACKGROUND: In the recently reported international survey of centers performing per-oral endoscopic myotomy (POEM), 88% of operators reported obtaining routinely an early postoperative contrast esophagram. To date, there have been no studies to assess the prognostic value of early esophagram in POEM. METHODS: A retrospective review of a prospectively maintained, single-institution database of patients who underwent POEM for treatment of achalasia was conducted. Patients were evaluated with a routine contrast esophagram on the first postoperative day (POD#1) to assess for perforation. The finding of delayed esophageal emptying, as determined by an attending radiologist, was compared with the patients' symptomatic outcomes and functional parameters at one year follow-up. RESULTS: Contrast esophagram was obtained on POD#1 for 72 patients undergoing POEM; 26 patients (36%) were observed to have a delay in esophageal emptying. Both groups of patients, those with a delay and those without a delay in esophageal emptying on POD#1, had similar preoperative Eckardt scores (7 ± 2 vs 7 ± 2, P = ns) and column height at 5 minutes on preoperative timed barium esophagram (12.1 ± 8 cm vs 14.1 ± 8 cm, P = ns). At a mean follow-up of 1 year, there was no difference in Eckardt scores between patients with and those without a delay in emptying on POD#1 esophagram (1 ± 2 vs 1 ± 1, P = ns), nor was there a difference between the 2 groups in column height at 5 minutes on TBE (5.5 ± 5 cm for delay vs 4.2 ± 4 cm for no delay; P = ns). Rates of treatment failure, as measured by Eckardt score >3 or need for subsequent treatment, also did not differ between the 2 groups (3 patients with delay vs 4 patients without delay in emptying, P = ns). CONCLUSION: Delay in passage of contrast on POD#1 esophagram did not predict symptomatic or physiologic outcomes at 1-year follow-up in patients undergoing POEM for treatment of achalasia.