title: Utility of peppermint oil for endoscopic diagnosis of gastric tumors.
abstract: We investigated whether peppermint oil (PO) is useful for endoscopic diagnosis of gastric tumors without magnifying endoscopy. Twenty-six patients diagnosed with gastric tumors were examined. Endoscopic images were recorded by white light (WL) and narrow band imaging (NBI) without magnifying endoscopy. After PO administration, images were recorded again by WL and NBI (PO+WL and PO+NBI). The clarity of tumor margins and the effect of PO on the clarity of tumor margins were scored. The mean scores for clarity of tumor margins were 3.6 points in WL, 4 in NBI, 4.3 in PO+WL, and 4.3 in PO+NBI. The scores of WL and NBI showed a tendency to rise by PO. The mean scores for the effect of PO on the clarity of tumor margins were 2.7 in WL and 2.5 in NBI. Therefore, we conclude that PO is useful for endoscopic diagnosis of the margin of gastric tumors.
authors.affiliation: Department of Endoscopy, Fukushima Medical University Hospital, Fukushima, Japan. takuto@fmu.ac.jp
authors.forename: Takuto
authors.initials: T
authors.lastname: Hikichi
authors.forename: Atsushi
authors.initials: A
authors.lastname: Irisawa
authors.forename: Masaki
authors.initials: M
authors.lastname: Sato
authors.forename: Ko
authors.initials: K
authors.lastname: Watanabe
authors.forename: Jun
authors.initials: J
authors.lastname: Nakamura
authors.forename: Tadayuki
authors.initials: T
authors.lastname: Takagi
authors.forename: Tsunehiko
authors.initials: T
authors.lastname: Ikeda
authors.forename: Rei
authors.initials: R
authors.lastname: Suzuki
authors.forename: Hiromasa
authors.initials: H
authors.lastname: Ohira
authors.forename: Katsutoshi
authors.initials: K
authors.lastname: Obara
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005773:Gastroscopy; D006801:Humans; D008297:Male; D036142:Mentha piperita; D010938:Plant Oils; D013274:Stomach Neoplasms / Q000175:diagnosis* / Q000473:pathology
chemical_list: D010938:Plant Oils; C015424:peppermint oil