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Abstract
慢性・反復性の胃もたれ感や心窩部痛があるにもかかわらず器質的疾患がみつからない場合,機能性ディスペプシア(FD)と診断される.その病態に消化管運動異常,消化管知覚過敏,心理社会的因子,脳腸相関が関与している.良好な患者-医療者関係が診断,治療の基本となるが,病態の説明と保証が治療結果に影響を及ぼす.消化管機能を正確に測定する場合には,ラジオアイソトープ,バロスタット装置が必要であるが,設備,費用,侵襲性の面から実地診療での利用は困難である.われわれは消化管機能検査の簡便法として^<13>Cでラベルしたオクタン酸,ラクトース・ウレイド内服呼気試験により胃排出,小腸通過時間の同時測定が可能であること,ドリンクテストの膨満感知覚飲用量がバロスタット法での適応性弛緩量を反映することを示した.脳イメージングの進歩によりFDにおける脳活動部位もしだいにわかる段階になってきている.病態検査の開発と簡便検査法が模索されている.
Functional dyspepsia is diagnosed in cases with chronic and recurrent epigastric fullness and/or pain with no evidence of organic diseases. The pathogeneses include gastrointestinal (GI) tract motolity disorder, GI tract hypersensitivity, psycho-social factors, and brain-gut interaction. Good relationship between patient and physician is essential in diagnosis and treatment, and explanation and assurance of the pathogeneses may affect the outcome. Radio-isotope and barostat device are required to evaluate GI tract function precisely, but it seems difficult to utilize these methods due to the drawback aspects of the special equipment, relatively high cost, and invasive nature at primary care setting. We have already reported that simaltanous measurement of gastric emptying and oro-cecal transit time is possible by ^<13>C-labelled octanoic acid and lactose ureide breath test and that total volume ingested of nutrient liquid to induce epigastric bloating may well reflect the accommodation volume by a barostat, suggesting that the breath test and nutrient drinking test should be an alterative easier way to gold standatd for examining the GI functions. Deviated activation of brain region in functional dyspepsia is getting to be detected by the progress of brain imaging technique. Devepment of tests for pathogeneses and groping for easy way have been performed.
Journal
- Japanese Journal of Psychosomatic Medicine [List of Volumes]
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Japanese Journal of Psychosomatic Medicine 48(7), 649-657, 2008-07-01 [Table of Contents]
Japanese Society of Psychosomatic Medicine