Related Experiment Video
Updated: Jun 30, 2026
A Novel Approach for the Administration of Medications and Fluids in Emergency Scenarios and Settings
Published on: November 9, 2016
Comparison between perfusion and balloon techniques for performing anorectal manometry in children with intestinal
Geraldo Magela Nogueira Marques1, José Luiz Martins, Vânia Dolores Rodrigues Perdigão Nobre
1Division of Pediatric Surgery, Department of Surgery, Federal University of São Paulo (UNIFESP), Brazil. geraldomnm@gmail.com
Introduction:
Two anorectal manometry techniques have commonly been utilized: the perfusion technique and the balloon technique.
Purpose:
To compare both techniques in children with intestinal constipation who had not undergone surgical treatment for its correction.
Methods:
Thirty-nine children aged between four and fourteen years underwent anorectal manometry using both techniques at random. Resting pressure, pressure response to voluntary contraction, coughing and perianal stimulation, maximum pressure on the anal canal pressure curve, and presence of rectosphincteric reflex were registered and submitted to statistics. Vectorgraphy of the sphincter muscle complex was obtained by perfusion technique.
Results:
The statistical comparison between the techniques revealed statistically significant differences in resting pressure (p=0.041), pressure response to voluntary contraction (p=0.026) and maximum pressure within the pressure curve (p=0.010). The rectosphincteric reflex was demonstrated in 21 patients by both techniques.
Conclusions:
The perfusion technique presented greater sensitivity in the following parameters: resting pressure, pressure response to voluntary contraction and maximum pressure within the pressure curve. The methods studied are equivalent regarding the measurement of pressure responses to coughing and perianal stimulation and the investigation of rectosphincteric reflex.
Related Concept Videos
01:25Assessment of the Rectum and Anus
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
01:26Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and solid...
01:09Methods for Studying Drug Absorption: In situ
The Doluisio method involves perfusing a prepared segment of a rat's small intestine with a solution of radiolabeled drug and a non-absorbable marker. This helps to differentiate between absorbed and non-absorbed drug concentrations. The intestinal segment is connected at both ends using tubing and syringes,...
01:21Inflammatory Bowel Disease V: Surgical Management
Here are some common surgical interventions for IBD: