Oolong tea is useful for lens cleansing in transnasal small-caliber esophagogastroduodenoscopy

Komazawa, Yoshinori; Amano, Yoshiharu; Yuki, Mika; Fukuhara, Hiroshi; Mishiro, Tsuyoshi; Shizuku, Toshihiro; Kinoshita, Y.

doi:10.1055/s-0029-1215380

Cited by 8 publications

(22 citation statements)

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“… 134 , 135 They are found in particular abundance in various plant species and are contained in soaps and detergents. 9 , 136 Moreover, saponins have a wide range of beneficial biological activity, such as being anti-inflammatory, antiviral, and antiparasitic. 137 Recently, studies reported oolong tea to exhibit surfactant properties due to saponins being present.…”

Section: Chemical Interactionsmentioning

confidence: 99%

“… 4 - 7 In addition, disturbances may lengthen the procedure time and may increase treatment costs, essentially decreasing surgical efficiency. 8 , 9 …”

Section: Introductionmentioning

confidence: 99%

“…This cleaning method often does not clean the lens satisfactorily. 9 Moreover, as a result of irrigation, unwanted fluid buildup in the surgical site may eventually impair vision and further influence the surgical workflow. Another observed impairment is the possible accumulation of a bubble or fluid droplet on the endoscope lens after irrigation.…”

Section: Introductionmentioning

confidence: 99%

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Review of Techniques to Achieve Optical Surface Cleanliness and Their Potential Application to Surgical Endoscopes

et al. 2017

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A clear visualization of the operative field is of critical importance in endoscopic surgery. During surgery the endoscope lens can get fouled by body fluids (eg, blood), ground substance, rinsing fluid, bone dust, or smoke plumes, resulting in visual impairment. As a result, surgeons spend part of the procedure on intermittent cleaning of the endoscope lens. Current cleaning methods that rely on manual wiping or a lens irrigation system are still far from ideal, leading to longer procedure times, dirtying of the surgical site, and reduced visual acuity, potentially reducing patient safety. With the goal of finding a solution to these issues, a literature review was conducted to identify and categorize existing techniques capable of achieving optically clean surfaces, and to show which techniques can potentially be implemented in surgical practice. The review found that the most promising method for achieving surface cleanliness consists of a hybrid solution, namely, that of a hydrophilic or hydrophobic coating on the endoscope lens and the use of the existing lens irrigation system.

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Section: Chemical Interactionsmentioning

confidence: 99%

“… 4 - 7 In addition, disturbances may lengthen the procedure time and may increase treatment costs, essentially decreasing surgical efficiency. 8 , 9 …”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Review of Techniques to Achieve Optical Surface Cleanliness and Their Potential Application to Surgical Endoscopes

et al. 2017

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“…However, this problem can easily be solved with cleansing solutions. One report indicated the good lens-cleansing ability of an oolong tea solution to resolve this minor problem (12).…”

Section: Technical Aspects Feasibility and Adequacymentioning

confidence: 99%

Unsedated small caliber esophagogastroduodenoscopy: Can we trust this technique?

Üstündağ

Sarıtaş²,

Ponchon³

2011

Turk J Gastroenterol

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“…tea, there have been scientific studies into the physiochemical properties of tea. Tea tannins have emulsifying properties (Figueroa-Espinoza and Zafimahova et al, 2015) and oolong tea is useful for cleaning oil from endoscopic lenses after transnasal esophagogastroduodenoscopy (Komazawa and Amano et al, 2010). Given these reports, it is hypothesized that oolong tea emulsifies and removes fat contents from the oral cavity during meals.…”

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confidence: 99%

Analysis of Active Components on Oral Fat Sensations in Oolong Tea

Mura

Yagi

Kizaki

et al. 2017

FSTR

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This study was conducted to identify key components that attenuate oral fat sensations in oolong tea. Oolong tea is often consumed with fatty food because of its "refreshing" effects during the course of a meal. We hypothesized that oolong tea gives a cleanness sensation via psychological and physical effects. We showed through a sensory study that oolong tea consumption significantly reduces oral fat sensations as compared to water. Interfacial tension was measured to evaluate the emulsifying properties of teas and its components. Oolong tea and tea-leaf saponins were significantly lower when compared with other teas and major tea components. Furthermore, the emulsion made from tea-leaf saponins and corn oil was stable after 24 h. Moreover, polyphenol enhanced oolong tea showed significantly decreased oral fattiness when compared with oolong tea. Thus, tea-leaf saponins appear to be key components in reducing oral fat sensation.

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Oolong tea is useful for lens cleansing in transnasal small-caliber esophagogastroduodenoscopy

Abstract: In transnasal small-caliber EGD, oolong tea instead of water as a washing solution for endoscopic lens cleansing is useful to maintain good visibility.

Cited by 8 publications

References 1 publication

Review of Techniques to Achieve Optical Surface Cleanliness and Their Potential Application to Surgical Endoscopes

Review of Techniques to Achieve Optical Surface Cleanliness and Their Potential Application to Surgical Endoscopes

Unsedated small caliber esophagogastroduodenoscopy: Can we trust this technique?

Analysis of Active Components on Oral Fat Sensations in Oolong Tea

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