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Effect of clopidogrel with or without omeprazole in patients with carotid artery stenting / Efecto del clopidogrel con o sin omeprazol en pacientes con stent en la arteria carótida
Ma, B; Hang, L; Chen, G; Du, Y.
  • Ma, B; Affiliated Hospital of Ningxia Medical University. Department of Neurology. Yinchuan. CN
  • Hang, L; Affiliated Hospital of Ningxia Medical University. Department of Gastroenterology. Yinchuan. CN
  • Chen, G; Affiliated Hospital of Ningxia Medical University. Department of Neurology. Yinchuan. CN
  • Du, Y; Affiliated Hospital of Ningxia Medical University. Department of Neurology. Yinchuan. CN
West Indian med. j ; 62(2): 135-139, Feb. 2013. ilus, tab
Article in English | LILACS | ID: biblio-1045605
ABSTRACT

BACKGROUND:

Recent concerns have been raised about the potential for proton pump inhibitors (PPIs) to blunt the efficacy of clopidogrel. We observed the effect of clopidogrel plus aspirin with or without omeprazole in patients with carotid stenoses after they received placement of carotid stents.

METHODS:

Sixty-four consecutive patients treated with percutaneous carotid artery stenting (CAS) comprised the sample. All enrolled patients underwent the C13 urea breath test (C13 UBT) before CAS. Patients with Helicobacter pylori infection and a history of peptic ulcer were assigned dual antiplatelet combination with omeprazole. Others received dual antiplatelet without omeprazole. Transcranial Doppler and ultrasonography were performed to assess the middle cerebral artery and carotid artery in follow-up at three months and six months.

RESULTS:

Eight patients had gastrointestinal bleeding; the event rate was 22.6% without omeprazole and 3.8% with omeprazole. The rate of gastrointestinal bleeding was reduced with omeprazole as compared without omeprazole (p = 0.026, p < 0.05). The two groups did not differ significantly in the rate of instent restenosis and thrombus through transcranial Doppler and ultrasonography.

CONCLUSION:

Among patients receiving dual antiplatelet therapy, prophylactic use of omeprazole reduced the rate of upper gastrointestinal bleeding. There was no apparent interaction between clopidogrel and omeprazole in patients with carotid artery stenting.
RESUMEN
ANTECEDENTES Recientemente se han expresado preocupaciones acerca de la posibilidad de que los inhibidores de la bomba de protones (IBP) para debilitar la eficacia del clopidogrel. Observamos el efecto del clopidogrel más aspirina con o sin omeprazol en pacientes con estenosis de la arteria carótida después de que recibieran la colocación de stents carotídeos.

MÉTODOS:

Sesenta y cuatro pacientes consecutivos tratados con stent percutáneo de la arteria carótida (SAC) fueron seleccionados para formar la muestra. A todos los pacientes inscritos se les realizó la prueba de aliento con urea C13 (C13 UBT) antes de CAS. A pacientes con infección por Helicobacter pylori y antecedentes de úlcera péptica les fue asignada una combinación antiplaquetaria dual con omeprazol. Otros recibieron tratamiento antiplaquetario dual sin omeprazol. Se realizaron una prueba Transcranial Doppler y una ultrasonografía a fin de evaluar la arteria cerebral media y la arteria carótida en seguimientos a los tres meses y a los seis meses.

RESULTADOS:

Ocho pacientes tuvieron hemorragia gastrointerstinal; la tasa de eventos fue 22.6% sin omeprazol y 3.8% con omeprazol. La tasa de hemorragia gastrointerstinal se redujo con omeprazol en comparación con la obtenida sin omeprazol (p = 0,026, p < 0.05). Los dos grupos no difirieron significativamente con respecto a la tasa de restenosis en stent y trombos a través de la prueba Transcranial Doppler y la ultrasonografía.

CONCLUSIÓN:

Entre los pacientes que reciben terapia antiplaquetaria dual, el uso profiláctico de omeprazol redujo la tasa de hemorragia gastrointestinal superior. No hubo interacción ostensible entre el clopidogrel y el omeprazol en pacientes con stent de la arteria carótida.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Omeprazole / Platelet Aggregation Inhibitors / Carotid Stenosis / Clopidogrel / Gastrointestinal Hemorrhage Limits: Female / Humans / Male Language: English Journal: West Indian med. j Journal subject: Medicine Year: 2013 Type: Article Affiliation country: China Institution/Affiliation country: Affiliated Hospital of Ningxia Medical University/CN

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Full text: Available Index: LILACS (Americas) Main subject: Omeprazole / Platelet Aggregation Inhibitors / Carotid Stenosis / Clopidogrel / Gastrointestinal Hemorrhage Limits: Female / Humans / Male Language: English Journal: West Indian med. j Journal subject: Medicine Year: 2013 Type: Article Affiliation country: China Institution/Affiliation country: Affiliated Hospital of Ningxia Medical University/CN