Login
- Document type:
- Article; Journal Article; Research Support, Non-U.S. Gov't
- Author(s):
- He, Suyu; Jell, Alissa; Hüser, Norbert; Kohn, Nils; Feussner, Hubertus
- Title:
- 24-hour monitoring of transient lower esophageal sphincter relaxation events by long-term high-resolution impedance manometry in normal volunteers: The "mirror phenomenon".
- Abstract:
- BACKGROUND: The aim of this study was to investigate the frequency and circadian changes in transient lower esophageal sphincter relaxations (TLESRs) in normal volunteers using 24-hour high-resolution impedance manometry (HRIM). METHODS: Fifteen volunteers underwent HRIM. TLESRs were recorded during the mealtime, 2-hour postprandial, daytime, and supine periods. The catheter was firmly secured to the nose, and subjects went home, ate normal meals, and continued routine daily activities. KEY RESULTS: Successful recordings were obtained in 11 volunteers. Overall, 1083 TLESRs were documented; the average occurrence was 4.2/h, and the duration was 21.0 ± 5.2 seconds. The majority of the TLESRs occurred during the 2-hour postprandial (42.7%) and daytime (31.5%) periods, while 10.2% and 15.6% occurred during the mealtime and supine periods, respectively. Eight hundred and eighty-six (81.8%) TLESRs were associated with reflux. Overall, 25.5% of TLESRs were preceded by partial secondary peristalsis (PSP), while 74.5% were preceded by nothing. Terminating events included primary peristalsis (PP; 40.3%), PSP (42.8%), full secondary peristalsis (FSP; 8.2%), or nothing (8.7%). Both preceding and terminating events periodically changed throughout the four periods. One hundred and twelve (10.3%) TLESRs with both preceding and terminating events of PSP, presenting as a "mirror phenomenon," were documented. The majority of these TLESRs occurred during the supine (70.5%). CONCLUSIONS & INFERENCES: Transient lower esophageal sphincter relaxations are common physiological motor events in normal volunteers; these events have certain circadian rhythms, as do the events that precede and terminate TLESR events. A special "mirror phenomenon" is observed when both the preceding and terminating events are PSP.
- Journal title abbreviation:
- Neurogastroenterol Motil
- Year:
- 2019
- Journal volume:
- 31
- Journal issue:
- 3
- Fulltext / DOI:
- doi:10.1111/nmo.13530
- Pubmed ID:
- http://view.ncbi.nlm.nih.gov/pubmed/30676686
- Print-ISSN:
- 1350-1925
- TUM Institution:
- Chirurgische Klinik und Poliklinik
BibTeX