Comparison between perfusion and balloon techniques for performing anorectal manometry in children with intestinal constipation

Abstract

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.

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“…In addition, the importance of counseling the patient's family and the child about the need for treatment and adherence to it is explained: explaining the relevance of the interventions; the objectives of the therapy and the expected results. Being integral to the care provided to the child, since there is an emotional impact caused by the disease, the implementation of invasive procedures and the repercussion of the numerous medical consultations 5,6 .…”

Avaliação clínica e funcional do autotransplante anorretal em ratos

“…Para tanto, utilizamos equipamento convencional para manometria em humanos, com cateter de humanos, e chamaram a atenção para a boa sensibilidade do método de captura de pressões de forma contínua, sugerindo ser superior ao método de tração rápida do cateter 120 . Em outro estudo recente realizado no Brasil foi constatado que a técnica de perfusão é a forma mais fisiológica de se obter a medida de pressão de repouso do canal anal 121,122 .…”