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Published on: October 4, 2021
[Peripheral anticholinergic syndrome]
Martha Patricia Valencia Zavala1, Gloria Bertha Vega Robledo, Jesús Alberto Sánchez Olivas
1Médica adscrita al servicio de alergia e inmunología clínica, Hospital General de México. mipsins@hotmail.com
Oral antihistamines, used for allergic rhinitis, can cause peripheral anticholinergic syndrome (PAS). This syndrome may lead to functional urinary obstruction and bladder sphincter issues, as seen in a case report.
Area of Science:
- Allergy and Immunology
- Urology
Background:
- A 38-year-old woman presented with allergic rhinitis, diagnosed via clinical evaluation and laboratory tests.
- Treatment initiated included specific hyposensitization, oral antihistamines, and inhaled corticosteroids.
Observation:
- Two years post-treatment, the patient developed urinary retention without prior history.
- Peripheral anticholinergic syndrome (PAS) was suspected as the cause.
Findings:
- Urodynamic studies, including uroflometry, urethral pressure profiling, cystometry, and electromyography, were performed.
- The studies revealed functional low urinary obstruction and vesical sphincter pseudodysfunction.
Implications:
- This case report demonstrates a link between oral antihistamine use and the development of peripheral anticholinergic syndrome (PAS).
- PAS can manifest as functional urinary obstruction and bladder sphincter dysfunction, highlighting a potential adverse effect of common allergy medications.
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