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Revista médica de Chile · Apr 1996
[Inhibition of the nitric oxide pathway in refractory septic shock].
- M Andresen, A Dougnac, G Hernández, J Espejo, L Castillo, G Bugedo, L M Letelier, and J Dagnino.
- Unidade de Terapia Intensiva Médica, Hospital Clínico, Universidad Católica, Santiago de Chile.
- Rev Med Chil. 1996 Apr 1; 124 (4): 442-7.
AimTo assess the acute effects of methylene blue infusion, an inhibitor of nitric oxide synthesis, on hemodynamic parameters in patients with refractory septic shock.Patients And MethodsFourteen patients admitted to intensive care units with septic shock of diverse etiologies and unable to maintain median arterial pressures over 60 mm Hg with the use of at least 2 vasoactive drugs, were studied. All received a 1 mg/kg bolus of methylene blue Hemodynamic parameters were measured before and 30, 60, 120 and 180 min after the bolus.ResultsSystolic and diastolic blood pressure and systemic vascular resistance increased in all patients. There were no significant changes in cardiac output, oxygen consumption or extraction.ConclusionsMethylene blue has an acute pressor effect in patients with septic shock.
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