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WATER-PERFUSED HIGH-RESOLUTION ANORECTAL MANOMETRY (HRAM-WP): THE FIRST BRAZILIAN STUDY
Ricardo Guilherme Viebig1,2, Janaina Tomiye Yamakata Franco2, Sergio Viebig Araujo2
1Instituto Brasileiro de Estudos e Pesquisas de Gastroenterologia e Outras Especialidades (IBEPEGE), São Paulo, SP, Brasil.
Arquivos De Gastroenterologia
|August 9, 2018
Summary
High-resolution anorectal manometry with water perfusion (HRAM-WP) simplifies testing and provides objective data. This validated system shows results comparable to solid-state probes, with men exhibiting greater anal sphincter containment force.
Area of Science:
- Gastroenterology
- Physiology
- Medical Device Validation
Background:
- High-resolution anorectal manometry with water perfusion (HRAM-WP) offers a more objective and standardized approach to data acquisition and interpretation.
- Validation of new diagnostic tools is crucial for improving clinical practice.
Purpose of the Study:
- To validate the Alacer Biomédica HRAM system using a 24-channel water perfusion probe.
- To compare the anorectal manometry results obtained with this system against existing literature and other manometry systems.
Main Methods:
- A 24-channel water perfusion probe (Alacer Biomédica) was utilized in 50 individuals without evacuation disorders.
- Resting (RMP), maximal voluntary contraction (CMP), and evacuation effort (EEMP) pressures, along with sphincter extension, were measured.
- Results were compared with data from recent literature and solid-state systems.
Main Results:
- Mean resting pressure (RMP) was 76.9 mmHg, maximal contraction pressure (CMP) was 194.2 mmHg, and evacuation effort pressure (EEMP) was 88.2 mmHg.
- Men showed higher CMP (229.5 mmHg) compared to women (170.7 mmHg).
- Sphincter extension was consistent across genders (3.1 cm).
Conclusions:
- The validated HRAM-WP system provides reliable and comparable data to solid-state systems.
- The system facilitates easier and potentially more comfortable testing with reduced artifacts.
- Further research is recommended to explore its utility in conditions like pelvic dyssynergia and incontinence.
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