EDUARDO CONTRERAS - Academia.edu (original) (raw)

Papers by EDUARDO CONTRERAS

Research paper thumbnail of Systemic atropine administration during cardiac arrest does not cause fixed and dilated pupils

Annals of Emergency Medicine, 1991

Obiectives: Systemic administration of atropine during CPR may postpone brain death determination... more Obiectives: Systemic administration of atropine during CPR may postpone brain death determination because of its reputed ability to produce fixed and dilated pupils. We studied the effect of atropine administered in the usual doses as an adTunct to endotracheal intubation and for cardiac arrest to determine if it would interfere with neurological assessment. Design: Two groups of children were studied. Group i consisted of 28 patients who received atropine (0.03 ~ 0.003 mg/kg) prior to endotracheal intubation. Group 2 consisted of 21 patients previously without evidence of brainstem disease who suffered a w~tnessed arrest and had prompt return of spontaneous circulation and received an atropine dose of 0.03 z 0.01 mg/kg.

Research paper thumbnail of Systemic Atropine Administration During Cardiac Arrest Does Not Cause Fixed and Dilated Pupils

Survey of Anesthesiology, 1991

Obiectives: Systemic administration of atropine during CPR may postpone brain death determination... more Obiectives: Systemic administration of atropine during CPR may postpone brain death determination because of its reputed ability to produce fixed and dilated pupils. We studied the effect of atropine administered in the usual doses as an adTunct to endotracheal intubation and for cardiac arrest to determine if it would interfere with neurological assessment. Design: Two groups of children were studied. Group i consisted of 28 patients who received atropine (0.03 ~ 0.003 mg/kg) prior to endotracheal intubation. Group 2 consisted of 21 patients previously without evidence of brainstem disease who suffered a w~tnessed arrest and had prompt return of spontaneous circulation and received an atropine dose of 0.03 z 0.01 mg/kg.

Research paper thumbnail of VARIACIONES DEL CONTENIDO DE Mn DE DOS SUELOS SOMETIDOS A ESTERILIZACIÓN Y SU EFECTO SOBRE LA PUDRICION RADICAL DEL TRIGO O "MAL DE PIE

Agricultura Tecnica, 2001

The variation on Mn content of a suppressive and a conducive soils on the expression of take-all ... more The variation on Mn content of a suppressive and a conducive soils on the expression of take-all wheat (Triticum aestivum L.) disease, caused by the fungus Gaeumannomyces graminis (Sacc.) von Arx & Olivier var. tritici Walker (Ggt), was evaluated under controlled ...

Research paper thumbnail of Calcium channel antagonists increase morphine-induced analgesia and antagonize morphine tolerance

European Journal of Pharmacology, 1988

The influence of calcium channel blockers on morphine-induced analgesia and on tolerance to the c... more The influence of calcium channel blockers on morphine-induced analgesia and on tolerance to the chronic administration of the opiate was investigated in mice. The effects of a test dose of morphine were significantly increased by the administration of diltiazem, flunarizine, nicardipine and verapamil. In contrast, nifedipine induced an antagonistic effect. The calcium channel antagonists did not change the reaction time to thermal stimulation in mice (hot plate test). The administration of nifedipine, flunarizine and verapamil reduced the intensity of the tolerance induced by a single dose of morphine administered in a slow release preparation. Diltiazem induced a non-significant decrease of the process. The present results are in accordance with the known interaction of acute and chronic morphine administration with the intracelhilar calcium concentration in neurones of the central nervous system.

Research paper thumbnail of Influence of adrenergic and cholinergic mechanisms in baclofen induced analgesia

General Pharmacology-the Vascular System, 1988

Al~tract--1. Baclofen induced analgesia was confirmed by means of the mouse hot plate test.

Research paper thumbnail of La Planificacion Logistica 1

Al igual que el ciclo general de planificación de la empresa, también la logística presenta tres ... more Al igual que el ciclo general de planificación de la empresa, también la logística presenta tres niveles de planificación:

Research paper thumbnail of Systemic atropine administration during cardiac arrest does not cause fixed and dilated pupils

Annals of Emergency Medicine, 1991

Obiectives: Systemic administration of atropine during CPR may postpone brain death determination... more Obiectives: Systemic administration of atropine during CPR may postpone brain death determination because of its reputed ability to produce fixed and dilated pupils. We studied the effect of atropine administered in the usual doses as an adTunct to endotracheal intubation and for cardiac arrest to determine if it would interfere with neurological assessment. Design: Two groups of children were studied. Group i consisted of 28 patients who received atropine (0.03 ~ 0.003 mg/kg) prior to endotracheal intubation. Group 2 consisted of 21 patients previously without evidence of brainstem disease who suffered a w~tnessed arrest and had prompt return of spontaneous circulation and received an atropine dose of 0.03 z 0.01 mg/kg.

Research paper thumbnail of Systemic Atropine Administration During Cardiac Arrest Does Not Cause Fixed and Dilated Pupils

Survey of Anesthesiology, 1991

Obiectives: Systemic administration of atropine during CPR may postpone brain death determination... more Obiectives: Systemic administration of atropine during CPR may postpone brain death determination because of its reputed ability to produce fixed and dilated pupils. We studied the effect of atropine administered in the usual doses as an adTunct to endotracheal intubation and for cardiac arrest to determine if it would interfere with neurological assessment. Design: Two groups of children were studied. Group i consisted of 28 patients who received atropine (0.03 ~ 0.003 mg/kg) prior to endotracheal intubation. Group 2 consisted of 21 patients previously without evidence of brainstem disease who suffered a w~tnessed arrest and had prompt return of spontaneous circulation and received an atropine dose of 0.03 z 0.01 mg/kg.

Research paper thumbnail of VARIACIONES DEL CONTENIDO DE Mn DE DOS SUELOS SOMETIDOS A ESTERILIZACIÓN Y SU EFECTO SOBRE LA PUDRICION RADICAL DEL TRIGO O "MAL DE PIE

Agricultura Tecnica, 2001

The variation on Mn content of a suppressive and a conducive soils on the expression of take-all ... more The variation on Mn content of a suppressive and a conducive soils on the expression of take-all wheat (Triticum aestivum L.) disease, caused by the fungus Gaeumannomyces graminis (Sacc.) von Arx & Olivier var. tritici Walker (Ggt), was evaluated under controlled ...

Research paper thumbnail of Calcium channel antagonists increase morphine-induced analgesia and antagonize morphine tolerance

European Journal of Pharmacology, 1988

The influence of calcium channel blockers on morphine-induced analgesia and on tolerance to the c... more The influence of calcium channel blockers on morphine-induced analgesia and on tolerance to the chronic administration of the opiate was investigated in mice. The effects of a test dose of morphine were significantly increased by the administration of diltiazem, flunarizine, nicardipine and verapamil. In contrast, nifedipine induced an antagonistic effect. The calcium channel antagonists did not change the reaction time to thermal stimulation in mice (hot plate test). The administration of nifedipine, flunarizine and verapamil reduced the intensity of the tolerance induced by a single dose of morphine administered in a slow release preparation. Diltiazem induced a non-significant decrease of the process. The present results are in accordance with the known interaction of acute and chronic morphine administration with the intracelhilar calcium concentration in neurones of the central nervous system.

Research paper thumbnail of Influence of adrenergic and cholinergic mechanisms in baclofen induced analgesia

General Pharmacology-the Vascular System, 1988

Al~tract--1. Baclofen induced analgesia was confirmed by means of the mouse hot plate test.

Research paper thumbnail of La Planificacion Logistica 1

Al igual que el ciclo general de planificación de la empresa, también la logística presenta tres ... more Al igual que el ciclo general de planificación de la empresa, también la logística presenta tres niveles de planificación: