Impact of transnasal ultrathin esophagogastroduodenoscopy (UT‐EGD) in the evaluation of esophageal peristaltic function

Kawai, Takashi; Yamagishi, Toshio; Yagi, Kenji; Kataoka, Masao; Kawakami, Kohei; Sofuni, Atsushi; Sakai, Yoshihiro; Osaka, Yoshiaki; Takagi, Yu; Aoki, Tatsuya

doi:10.1111/j.1440-1746.2008.05555.x

Cited by 10 publications

(14 citation statements)

References 19 publications

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“… 28 Furthermore, Kawai et al. 29 reported a new method to evaluate esophageal peristaltic function with an intraesophageal manometry probe passed through the accessory channel of an ultrathin scope inserted transnasally. This combination of simultaneous endoscopy and manometry shows promise for screening of peristaltic function.…”

Section: Recently Reported Endoscopic Techniques With Transnasal Scopmentioning

confidence: 99%

Current Status and Evaluation of Transnasal Esophagogastroduodenoscopy

Tatsumi

Harada

Matsumoto

et al. 2009

Digestive Endoscopy

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We reviewed the current status of transnasal esophagogastroduodenoscopy (EGD) with regard to tolerance, safety, feasibility and accuracy. Comparison of standard and ultrathin scopes and recently reported endoscopic techniques with transnasal insertion are also described as well as the current status of transnasal EGD in European countries compared with Japan.As several studies concluded that transnasal EGD can facilitate comfortable endoscopy without the need for sedative drugs, it has been tried in countries in which a relatively high number of unsedated EGD are carried out in daily practice. Long-tube intubation of the jejunum with the assistance of transnasal EGD will also be a part of the daily practice in the near future. However, its safety and accuracy should be further investigated. Even a standard scope whose charge-coupled device (CCD) has the same resolution as an ultrathin scope is superior to an ultrathin scope in terms of luminosity and resolution. Given the small number of procedures reported to date, the absolute complication rate of unsedated transnasal EGD is unknown. Methods of nasal anesthesia, as well as informed consent, indications and contraindications for transnasal EGD are not standardized. A guideline of transnasal EGD is under discussion by the Japanese Gastroenterological Endoscopy Society.

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Section: Recently Reported Endoscopic Techniques With Transnasal Scopmentioning

confidence: 99%

Current Status and Evaluation of Transnasal Esophagogastroduodenoscopy

Tatsumi

Harada

Matsumoto

et al. 2009

Digestive Endoscopy

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“…After the scope had been passed into the esophagus transnasally, a 5Fr manometry catheter was inserted from the forceps channel and the intraesophageal pressure was measured. This procedure enabled simultaneous endoscopic observation of esophageal peristaltic activity and measurement of the maximal peristaltic pressure in lower esophagus after the wet swallow …”

Section: Methodsmentioning

confidence: 99%

Gastroesophageal reflux disease in patients with diabetes: Preliminary study

Fujiwara

Miwa

Kawai

et al. 2015

J of Gastro and Hepatol

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Background and Aim: Some studies report that complications of gastroesophageal reflux disease (GERD) occur more frequently in patients with diabetes mellitus (DM) than in non-diabetic patients. This study used transnasal endoscopy to elucidate the current status of concurrent GERD in patients with type 2 diabetes mellitus, and to examine the associations between intraesophageal pressure and GERD, as well as other neuropathic conditions. Methods: The study included 57 outpatients with type 2 diabetes mellitus. The mean age was 67 years and the duration of DM was 13 years. The mean hemoglobin A1c was 6.8%. Transnasal endoscopic evaluation items were (i) the presence or absence of esophagitis and its severity; (ii) intraesophageal pressure; and (iii) Helicobacter pylori status, which was evaluated by endoscopic findings, such as the presence or absence of gastritis and peptic ulcer, and by urea breath test. Results: Of 57 patients, 24 (42.1%) were given a diagnosis of GERD based on endoscopy. Patients with concurrent GERD were younger, had shorter duration of DM, and were taller and heavier. Interestingly, no difference in body mass index was observed. There was no significant association between the presence of concurrent GERD and diabetic complications, including peripheral neuropathy, and infection or non-infection with H. pylori. Although there was no significant association between the presence of concurrent GERD and intraesophageal pressure values, we found aging, reduced estimated glomerular filtration rate, and the presence of autonomic nerve symptoms to correlate with reduced intraesophageal pressure. Conclusion:The results of this study could be used to answer the question of whether or not endoscopic GERD is a diabetic complication; however, further study is required.

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“…Similarly, the combination of vision and manometry has been attempted previously. Kawai et al 6 reported that transnasal ultrathin EGD and simultaneous esophageal manometry are useful in the evaluation of esophageal peristaltic function. However, the manometry catheter used in that study was inserted through the scope and only evaluated the area in front of the scope.…”

Section: Discussionmentioning

confidence: 99%

“…The impedance catheter was inserted through the scope and had the same diagnostic limitations as those in the study by Kawai et al 6 Those 2 studies used conventional EGD to view the esophagus and inserted the new catheters through the scope, with neither functioning as a technique for whole esophageal monometry or impedance. [6][7][8] The new vision-assisted catheter has several limitations. The optic module has no function for lens cleaning or air inflation, which is important for clear vision.…”

Section: Discussionmentioning

confidence: 99%

Development of a Vision-assisted Manometry Catheter for High-resolution Esophageal Manometry

Kim

2015

J Neurogastroenterol Motil

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High-resolution esophageal manometry is becoming a standard diagnostic method for esophageal motility disorders. High-resolution manometry catheters are inserted blindly, which sometimes results in coiling in the esophagus and failure to cross the crural diaphragm in patients with large hiatal hernias. The newly developed manometry catheter described in this report has an optical module in front of the catheter that provides forward images during insertion and prevents coiling and malplacement of the catheter. This case report describes the composition of a new manometry catheter with an optical module and shows that the new catheter functions well in both in vitro and in vivo settings. The new manometry catheter will help guide the right way and prevent coiling in the esophagus.

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Impact of transnasal ultrathin esophagogastroduodenoscopy (UT‐EGD) in the evaluation of esophageal peristaltic function

Abstract: The use of an ultrathin transnasal endoscope makes possible simultaneous manometry and endoscopic observation of the esophagus. This combination should prove useful in the evaluation of esophageal peristaltic function, such as in the diagnosing of GERD.

Cited by 10 publications

References 19 publications

Current Status and Evaluation of Transnasal Esophagogastroduodenoscopy

Current Status and Evaluation of Transnasal Esophagogastroduodenoscopy

Gastroesophageal reflux disease in patients with diabetes: Preliminary study

Development of a Vision-assisted Manometry Catheter for High-resolution Esophageal Manometry

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