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Relationships of human antroduodenal motility and transpyloric fluid movement: non-invasive observations with real-time ultrasound.
Gut. 1984 Dec; 25(12):1384-91.Gut

Abstract

To study the relationships between gastric antral and proximal duodenal motor activity, and the movement of liquid across the pylorus, 10 healthy volunteers were given a test meal of dilute orange juice and bran, and events at the gastric outlet monitored by real-time ultrasound. A total of 116 complete gastric peristaltic cycles were observed and in 86% of these, associated proximal duodenal contractions were seen. Transpyloric fluid movement, as reflected by the movement of the bran particles, occurred as brief episodes during the time when the pylorus was open. Distal flow, in episodes lasting 2-4 seconds, was seen to occur in 81% of the 116 complete cycles and 75% of these episodes occurred just after the relaxation of the terminal antrum, pylorus, and proximal duodenum. The remainder occurred shortly before the terminal antral contraction. Retrograde flow, in episodes of up to 5 seconds, occurred in 78% of observed cycles with the majority occurring immediately before contraction of the terminal antrum. Our findings indicate that transpyloric fluid movement occurs in brief episodes lasting a few seconds only and that retrograde flow across the pylorus occurs in normal subjects. This pattern of fluid movement can bear no direct relationship to a steadily advancing antral peristaltic contraction, nor be wholly attributable to constant intragastric pressure.

Authors

No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

6392035

Citation

King, P M., et al. "Relationships of Human Antroduodenal Motility and Transpyloric Fluid Movement: Non-invasive Observations With Real-time Ultrasound." Gut, vol. 25, no. 12, 1984, pp. 1384-91.
King PM, Adam RD, Pryde A, et al. Relationships of human antroduodenal motility and transpyloric fluid movement: non-invasive observations with real-time ultrasound. Gut. 1984;25(12):1384-91.
King, P. M., Adam, R. D., Pryde, A., McDicken, W. N., & Heading, R. C. (1984). Relationships of human antroduodenal motility and transpyloric fluid movement: non-invasive observations with real-time ultrasound. Gut, 25(12), 1384-91.
King PM, et al. Relationships of Human Antroduodenal Motility and Transpyloric Fluid Movement: Non-invasive Observations With Real-time Ultrasound. Gut. 1984;25(12):1384-91. PubMed PMID: 6392035.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Relationships of human antroduodenal motility and transpyloric fluid movement: non-invasive observations with real-time ultrasound. AU - King,P M, AU - Adam,R D, AU - Pryde,A, AU - McDicken,W N, AU - Heading,R C, PY - 1984/12/1/pubmed PY - 1984/12/1/medline PY - 1984/12/1/entrez SP - 1384 EP - 91 JF - Gut JO - Gut VL - 25 IS - 12 N2 - To study the relationships between gastric antral and proximal duodenal motor activity, and the movement of liquid across the pylorus, 10 healthy volunteers were given a test meal of dilute orange juice and bran, and events at the gastric outlet monitored by real-time ultrasound. A total of 116 complete gastric peristaltic cycles were observed and in 86% of these, associated proximal duodenal contractions were seen. Transpyloric fluid movement, as reflected by the movement of the bran particles, occurred as brief episodes during the time when the pylorus was open. Distal flow, in episodes lasting 2-4 seconds, was seen to occur in 81% of the 116 complete cycles and 75% of these episodes occurred just after the relaxation of the terminal antrum, pylorus, and proximal duodenum. The remainder occurred shortly before the terminal antral contraction. Retrograde flow, in episodes of up to 5 seconds, occurred in 78% of observed cycles with the majority occurring immediately before contraction of the terminal antrum. Our findings indicate that transpyloric fluid movement occurs in brief episodes lasting a few seconds only and that retrograde flow across the pylorus occurs in normal subjects. This pattern of fluid movement can bear no direct relationship to a steadily advancing antral peristaltic contraction, nor be wholly attributable to constant intragastric pressure. SN - 0017-5749 UR - https://www.unboundmedicine.com/medline/citation/6392035/Relationships_of_human_antroduodenal_motility_and_transpyloric_fluid_movement:_non_invasive_observations_with_real_time_ultrasound_ L2 - https://gut.bmj.com/lookup/pmidlookup?view=long&pmid=6392035 DB - PRIME DP - Unbound Medicine ER -