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1.
Acta Cir Bras ; 30(6): 414-21, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-26108030

RESUMEN

PURPOSE: To investigate the protective effect of dexmedetomidine (Dex) on testicular damage induced by ischemia-reperfusion injury in rats. METHODS: Sham group underwent left scrotal exploration only (group 1). The ischemia-reperfusion only group underwent left testicular torsion and detorsion (group 2). The ischemia-reperfusion plus Dex group underwent left testicular torsion, received 50 µg/kg Dex (group 3) and 100 µg/kg Dex (group 4) intraperitoneally at minute 180 of ischemia and then underwent detorsion. We determined histopathological findings and performed specific biochemical analyses. RESULTS: Increasing doses of Dex significantly increased TAS, and significantly decreased OSI. Analyzing the antioxidant effects of increasing doses of Dex in torsion and contrlateral testicles: Dex 100 µg/kg statistically significant increased the tissue total antioxidant status (TAS) and oxidative stress index (OSI) when compared with Dex 50 µg/kg but not found significantly change on the tissue total oxidant status (TOS). However, Dex did not significantly improve these histological alterations. CONCLUSION: The antioxidant effects of dexmedetomidine on testicular ischemia-reperfusion injury in ipsilateral and contrlateral testis, but in the histopathological level, there was no difference statistically according to Johnsen's scoring system between groups at both sides.


Asunto(s)
Agonistas de Receptores Adrenérgicos alfa 2/farmacología , Antioxidantes/farmacología , Dexmedetomidina/farmacología , Daño por Reperfusión/prevención & control , Torsión del Cordón Espermático/prevención & control , Testículo/irrigación sanguínea , Agonistas de Receptores Adrenérgicos alfa 2/uso terapéutico , Animales , Dexmedetomidina/uso terapéutico , Inmunohistoquímica , Isquemia/patología , Isquemia/prevención & control , Masculino , Estrés Oxidativo/efectos de los fármacos , Estudios Prospectivos , Distribución Aleatoria , Ratas Wistar , Valores de Referencia , Daño por Reperfusión/patología , Índice de Severidad de la Enfermedad , Torsión del Cordón Espermático/patología , Testículo/patología , Factores de Tiempo
2.
Acta cir. bras ; Acta cir. bras;30(6): 414-421, 06/2015. tab, graf
Artículo en Inglés | LILACS | ID: lil-749644

RESUMEN

PURPOSE: To investigate the protective effect of dexmedetomidine (Dex) on testicular damage induced by ischemia-reperfusion injury in rats. METHODS: Sham group underwent left scrotal exploration only (group 1). The ischemia-reperfusion only group underwent left testicular torsion and detorsion (group 2). The ischemia-reperfusion plus Dex group underwent left testicular torsion, received 50 µg/kg Dex (group 3) and 100 µg/kg Dex (group 4) intraperitoneally at minute 180 of ischemia and then underwent detorsion. We determined histopathological findings and performed specific biochemical analyses. RESULTS: Increasing doses of Dex significantly increased TAS, and significantly decreased OSI. Analyzing the antioxidant effects of increasing doses of Dex in torsion and contrlateral testicles: Dex 100 µg/kg statistically significant increased the tissue total antioxidant status (TAS) and oxidative stress index (OSI) when compared with Dex 50 µg/kg but not found significantly change on the tissue total oxidant status (TOS). However, Dex did not significantly improve these histological alterations. CONCLUSION: The antioxidant effects of dexmedetomidine on testicular ischemia-reperfusion injury in ipsilateral and contrlateral testis, but in the histopathological level, there was no difference statistically according to Johnsen's scoring system between groups at both sides. .


Asunto(s)
Animales , Masculino , /farmacología , Antioxidantes/farmacología , Dexmedetomidina/farmacología , Daño por Reperfusión/prevención & control , Torsión del Cordón Espermático/prevención & control , Testículo/irrigación sanguínea , /uso terapéutico , Dexmedetomidina/uso terapéutico , Inmunohistoquímica , Isquemia/patología , Isquemia/prevención & control , Estrés Oxidativo/efectos de los fármacos , Estudios Prospectivos , Distribución Aleatoria , Ratas Wistar , Valores de Referencia , Daño por Reperfusión/patología , Índice de Severidad de la Enfermedad , Torsión del Cordón Espermático/patología , Factores de Tiempo , Testículo/patología
3.
J Res Med Sci ; 16(6): 828-35, 2011 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-22091314

RESUMEN

While patients with obstructive sleep apnea (OSA) or multiple sclerosis (MS) are at high risk of developing postoperative complications, both of them have special anesthetic considerations in intraoperative and postoperative periods. A careful preoperative evaluation, use of the optimal anesthetic regimen and close postoperative care is essential for these patients. Rarity of coexistence of both obstructive sleep apnea and multiple sclerosis in a surgical patient necessitates careful anesthetic management. We here report anesthetic management of a female patient with OSA and MS who underwent anesthesia three times for surgery and review the literature.

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