Does blood flow increase through the hepatic portal vein after visceral recoil technique on the liver?
Item
- Title
- Does blood flow increase through the hepatic portal vein after visceral recoil technique on the liver?
- Author(s)
- Gallagher, A
- Abstract
- Objective: To investigate if physiological changes occur in the portal vein after the application of a visceral technique. More specifically does blood flow increase through the hepaticportal vein after a visceral recoil technique on the liver? Introduction: The aim of visceral osteopathy is to encourage visceral organs to express their normal, motile rhythmic patterns. This is believed to improve the function and flow of fluid through the organ and therefore the function of the body as a whole. The liver is a key organ in the concept of fluid flow in the body. The blood from the entire gastrointestinal tract drains through it before returning to the heart. Optimum fluid flow through the liver is believed to improve the vitality and general health of an individual due to its role in metabolism and production of immune factors. According to haemodynamic principles, for blood flow to increase the following changes should occur within a vessel: 1.Velocity of bloody flow (cm/s) will decrease Resistance will decrease Diameter of lumen will increase Volume flow rate (ml/min) will increase Such changes were measured using Doppler ultrasound which provided data regarding maximum systolic velocity (Vmax) of blood flow and resistance index (RI) of the vessel. The diameter of the portal vein was manually measured and from , . ^ ~ -this data the volume flow rate (VFR) of blood was calculated. Method: Ten healthy male subjects volunteered to participate in the study and were had three Doppler US readings of blood flow in their portal vein taken and three measurements of the portal vein diameter. The experimental group then received a liver recoil technique. The control group lay supine for ten minutes. A second set of Doppler ultrasound readings were then taken on both groups and measurements of the portal vein diameter. Data was recorded and statistically analysed. Results: After the liver recoil, changes in the experimental group corresponded to those expected should blood flow increase in a vessel; Vmax decreased by -I.79cm/s 5.01, diameter increased by 0.11 cm 0.09 and VFR increased by 83.88 ml/min 765.54. However, only the changes in diameter were found to be statistically significant. RI increased by 0.18 0.45, again the change was not statistically significant, but it also did not correspond to expected changes when blood flow increases. Significance was however found in the comparison of changes in the experimental and control group in diameter, RI and VFR. Discussion/Conclusion: Despite the significance of change found between the two groups it was decided that the null hypotheses could not be rejected due to the potential experimental errors that may have occurred because of small sample size.
- presented at
- European School of Osteopathy
- Date Accepted
- 2011
- Date Submitted
- 22.1.2013 16:23:35
- Type
- osteo_thesis
- Language
- English
- Submitted by:
- 62
- Pub-Identifier
- 15269
- Inst-Identifier
- 1229
- Keywords
- Diagnostic ultrasound; Hepatic portal vein; Visceral osteopathy; Liver.
- Recommended
- 0
- Item sets
- Thesis
Gallagher, A, “Does blood flow increase through the hepatic portal vein after visceral recoil technique on the liver?”, Osteopathic Research Web, accessed May 2, 2024, https://www.osteopathicresearch.com/s/orw/item/796