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1.
Acta gastroenterol. latinoam ; 30(3): 169-75, jul. 2000. tab, graf
Article in English | LILACS | ID: lil-269921

ABSTRACT

BACKGROUND: We have previously shown electro-mechanical recto-anal alterations in irritable bowel syndrome patients (Awad R. Neurogastroenterol Motil 1993; 5; 265-271). To assess whether the alpha 2-agonist lidamidine HCL is able to modify these physiological alterations and alleviate clinical symptoms, 50 patients with irritable bowel syndrome were studied in a random, double blind, placebo-controlled trial. METHODS: Lidamidine HCL (4 mg) or placebo was taken orally t.i.d. with food. Fasting and post-prandial electrical and mechanical activities of rectum and internal anal sphincter were recorded before and at the end of treatment. Recto-anal sensitivity was also tested. RESULTS: After treatment, post-prandial duration of spontaneous recto-anal inhibitory reflex diminished in the lidamidine group (18.9 +/- 1 vs. 15.1 +/- 1.3 sec; p < 0.05). Amplitude of induced rectoanal inhibitory reflex decreased after lidamidine (24.6 +/- 2.9 vs 17.3 +/- 3 mmHg; p = 0.02). Rectal electrical activity showed no changes during basal and post-prandial periods in any group. Rectal painful sensation decreased after treatment with lidamidine (54.8 +/- 5.4 vs 43.6 +/- 3.5 ml; p < 0.05) as well as with placebo (p < 0.05). Abdominal distension and requency, severity and duration of pain diminished in both groups (p < 0.05). CONCLUSION: Lidamidine decreased the augmented mechanical response to food, reduced rectal sensitivity, and relieved symptoms. These facts suggest that in spite of the strong placebo response obtained, lidamidine HCL can become a useful alternative for treatment of patients with irritable bowel syndrome.


Subject(s)
Humans , Adult , Adrenergic beta-Agonists/therapeutic use , Colonic Diseases, Functional/drug therapy , Gastrointestinal Motility/physiology , Phenylurea Compounds/therapeutic use , Adrenergic beta-Agonists/pharmacology , Anal Canal/drug effects , Anal Canal/physiology , Double-Blind Method , Electromyography , Manometry , Phenylurea Compounds/pharmacology , Placebo Effect , Postprandial Period , Rectum/drug effects , Rectum/physiology , Reflex/physiology , Sensory Thresholds/drug effects , Sensory Thresholds/physiology
2.
Rev. méd. Hosp. Gen. Méx ; 57(2): 54-9, abr.-jun. 1994. tab
Article in Spanish | LILACS | ID: lil-143044

ABSTRACT

Antecedentes: La incontinencia fecal constituye un serio problema social que afecta a todos los grupos de edad. Su tratamiento es tan complejo como desconocido. Métodos: Efectuamos un estudio longitudinal, prospectivo, experimental, entre 47 pacientes consecutivos que presentaban incontinencia total por un periodo de 55.4 ñ 7.6 meses (intervalo: seis meses a 21 años), con 2.4 ñ 0.2 episodios de incontinencia (intervalo: 1-7 por día). A todos se les efectuó cuestionario para validar el diagnóstico de incontinencia, historia clínica completa, laboratorio, colon por enema, rectosigmoidoscopia, sensibilidad rectal, manometría rectoanal, y retroalimentación biológica sin instrumentación electrónica. Veintiún sujetos normales sirvieron como grupo control. Resultados: Los pacientes con incontinencia fecal presentaron disminución de la sensibilidad rectal (p<0.01) y alteraciones en el reflejo recto anal inhibitorio espontáneo. Todos obtuvieron curación completa en un periodo de 4 ñ 0.5 meses (intervalo: 15 días a 15 meses) y fueron seguidos por uno a ocho años. Conclusiones: La nueva modalidad de retroalimentación biológica aquí descrita no utiliza ningún instrumento electrónico. La curación y el tiempo de curación de los pacientes no solamente es comparable, sino superior a lo hasta ahora informados. Puede ser reproducido, con el entrenamiento adecuado, por mayor número de médicos en cualquier centro y condicionar, por tanto, un beneficio significativo en la calidad de vida de un mayor número de pacientes


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Rectum/physiology , Rectum/innervation , Surveys and Questionnaires , Fecal Incontinence/diagnosis , Fecal Incontinence/therapy , Feedback/physiology , Autonomic Nervous System/physiology
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