Variant parameter values—as defined by the <scp>C</scp>hicago <scp>C</scp>riteria—produced by ManoScan and a new system with Unisensor catheter

Kuribayashi, Shiko; Iwakiri, Katsuhiko; Kawada, Akira; Kawami, Noriyuki; Hoshino, Shintaro; Takenouchi, Nana; Hosaka, Hiroko; Sugiyama, Yasuyuki; Kawamura, Osamu; Yamada, Masanobu; Kusano, Motoyasu

doi:10.1111/nmo.12446

Cited by 65 publications

(72 citation statements)

References 9 publications

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“…The first HRM system that became commercially available was ManoScan®, and the Chicago Classification has been determined mainly based on its findings. It has been reported that parameters such as the DCI, intrabolus pressure, and IRP (but not contractile front velocity) have significantly higher values with Starlet® than with ManoScan® [16]. Accordingly, when using Starlet®, investigators should be aware of the potential for overestimating the results.…”

Section: Discussionmentioning

confidence: 99%

“…Accordingly, when using Starlet®, investigators should be aware of the potential for overestimating the results. The upper limit of IRP was set to 25 mm Hg and the diagnostic criteria of jackhammer esophagus was set to at least 2 swallows with DCI >12,000 mm Hg·s·cm to account for differences in IRP and DCI according to the type of HRM catheter used [16]. Thus, our 2 patients with absent contractility and 1 patient each with IEM and fragmented peristalsis are considered to have truly weakened peristalsis.…”

Section: Discussionmentioning

confidence: 99%

“…Esophageal motility was described according to the Chicago Classification version 3.0. The upper limit of integrated relaxation pressure (IRP) was set to 25 mm Hg and the diagnostic criteria for jackhammer esophagus was set to at least 2 swallows with distal contractile integral (DCI) >12,000 mm Hg·s·cm to account for differences in IRP and DCI according to the type of HRM catheter used [16]. …”

Section: Methodsmentioning

confidence: 99%

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Esophageal Motility after Extensive Circumferential Endoscopic Submucosal Dissection for Superficial Esophageal Cancer

et al. 2018

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Background/Aims: Endoscopic submucosal dissection (ESD) for superficial esophageal cancer is sometimes extensive, and in our experience, patients not infrequently present with dysphagia after ESD even in the absence of esophageal stricture. The aim of this study was to evaluate esophageal motility using high-resolution manometry (HRM) in patients with and without dysphagia after extensive circumferential ESD. Methods: HRM was performed in a total of 52 patients who had undergone ESD for superficial esophageal cancer and a mucosal defect after ESD exceeded more than two-thirds of the esophageal circumference. The frequency and type of esophageal dysmotility and the relationship between esophageal motility and dysphagia were evaluated. Results: Esophageal dysmotility was observed in 13 patients (25%): jackhammer esophagus in 4, esophagogastric junction outflow obstruction in 4, absent contractility in 2, and distal esophageal spasm, ineffective esophageal motility, and fragmented peristalsis in 1 patient each. Of the 22 patients with dysphagia after ESD, 9 (41%) had esophageal dysmotility. Of the 30 patients without dysphagia after ESD, 4 (13%) had esophageal dysmotility. The relationship between dysmotility and dysphagia was significant (p = 0.025). Conclusions: Esophageal dysmotility exists in approximately one-quarter of patients after extensive circumferential ESD, which is associated with dysphagia in the absence of esophageal stricture.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Esophageal Motility after Extensive Circumferential Endoscopic Submucosal Dissection for Superficial Esophageal Cancer

et al. 2018

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“…There are many indications that the Chicago Classification has been picked up globally, meaning that, after following the diagnostic algorithm, a gastroenterologist in Japan would come to the same final diagnosis as a gastroenterologist in the USA or Europe. Normal values for each system have been produced, as also described in this issue …”

Section: A New Diagnostic Technique: High‐resolution Manometrymentioning

confidence: 99%

Clinical Esophagology: alive and kicking!

Bredenoord

2015

Neurogastroenterology Motil

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“…Manometric data were analyzed using special software (Star Medical, Inc.) that had a function that was similar to the e-sleeve function. Kuribayashi et al [14] reported that the Starlet with a Unisensor catheter could evaluate esophageal motility precisely. TLESRs were evaluated according to previously published criteria for HRM reported by Roman et al [15], as follows: (1) absence of swallowing for 4 s before and for 2 s after the onset of LES relaxation; (2) the 4-s integrated relaxation pressure measured within the LES relaxation was 50% or less of the basal LES pressure; (3) the presence of swallowing was allowed if the LES relaxation duration was longer than 10 s in the absence of multiple swallows; and (4) inhibition of the crural diaphragm was also taken into account (fig.…”

Section: Methodsmentioning

confidence: 99%

Novel Prokinetic Acotiamide Reduces Transient Lower Esophageal Sphincter Relaxation in Healthy Subjects

Yamashita

Kanamori²,

Fukuchi³

et al. 2015

Digestion

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Background/Aims: Currently, there is no study evaluating the effect of acotiamide on transient lower esophageal sphincter relaxations (TLESRs). The aim of this study was to evaluate the effect of acotiamide on TLESRs using simultaneous high-resolution manometry (HRM) and impedance-pH monitoring. Methods: Ten healthy subjects were enrolled. On day 1, subjects underwent HRM and impedance-pH recordings as a baseline. Subjects ate a 750-kcal liquid meal; recording was continued for 2 h while the subjects were in a sitting position. After the administration of acotiamide 100 mg three times a day for 1 week, subjects underwent HRM and impedance-pH recording under the same protocol. Results: A total of 208 TLESRs were identified at baseline. Acotiamide decreased the total number of TLESRs from 208 to 143 (p < 0.05). The rate of reflux events during TLESRs after acotiamide administration was similar to that at baseline (57% after acotiamide vs. 58% at baseline). Bolus clearance time was significantly reduced by acotiamide. Conclusions: Acotiamide was believed to have the potential for reducing TLESRs and for enhancing esophageal bolus clearance in healthy volunteers. Future research is needed to determine whether the effects of acotiamide that reduce TLESRs and enhance esophageal motility could improve symptoms in patients with refractory gastroesophageal reflux disease.

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Variant parameter values—as defined by the Chicago Criteria—produced by ManoScan and a new system with Unisensor catheter

Abstract: Both systems can measure esophageal motility appropriately; nevertheless, we confirmed that the two systems showed different values of the parameters defined by the Chicago criteria. These differences should be recognized to evaluate esophageal motility precisely.

Cited by 65 publications

References 9 publications

Esophageal Motility after Extensive Circumferential Endoscopic Submucosal Dissection for Superficial Esophageal Cancer

Esophageal Motility after Extensive Circumferential Endoscopic Submucosal Dissection for Superficial Esophageal Cancer

Clinical Esophagology: alive and kicking!

Novel Prokinetic Acotiamide Reduces Transient Lower Esophageal Sphincter Relaxation in Healthy Subjects

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