ephedrine/hypoxia

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Divergent effects of ephedrine and phenylephrine on cardiovascular hemodynamics of near-term fetal sheep exposed to hypoxemia and maternal hypotension.

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BACKGROUND We hypothesized that the administration of ephedrine and phenylephrine for maternal hypotension modifies cardiovascular hemodynamics in near-term sheep fetuses. METHODS At 115-136 days of gestation, chronically instrumented, anesthetized ewes with either normal placental function or

[The effects of ephedrine and phenylephrine on arterial partial pressure of oxygen].

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The changes in arterial partial pressure of oxygen were studied following intravenous injections of either ephedrine, 0.2mg.kg-1, or phenylephrine 2.5 micrograms.kg-1, to restore arterial hypotension. Eighty one adult patients underwent general anesthesia, being mechanically ventilated, were divided

Evaluation of antihypotensive techniques for cesarean section under spinal anesthesia: Rapid crystalloid hydration versus intravenous ephedrine.

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BACKGROUND Spinal anesthesia is a preferred technique over general anesthesia for cesarean delivery. It avoids maternal airway related complications, aspiration and neonatal depression. However hypotension following spinal anesthesia can lead to decrease in uterine blood flow and neonatal

[The effects of ephedrine and phenylephrine on arterial partial pressure of oxygen during one-lung ventilation].

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We investigated the effects of ephedrine (EP) and phenylephrine (PH) on partial pressure of oxygen and intra-pulmonary shunt during one-lung ventilation under general anesthesia with enflurane, fentanyl and oxygen. When systolic blood pressure decreased to less than 80% of the resting values, 30

Intravenous lidocaine and ephedrine, but not propofol, suppress fentanyl-induced cough.

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OBJECTIVE The aim of this study was to evaluate the effectiveness of lidocaine, propofol and ephedrine in suppressing fentanyl-induced cough. METHODS One hundred and eighteen patients were randomly assigned into four groups and the following medications were given intravenously: patients in Group I

Update on volume therapy in obstetrics.

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Symptomatic hypotension (maternal nausea, vomiting, dizziness and dyspnoea) during spinal anaesthesia for caesarean delivery remains a prevalent clinical problem. Severe and sustained hypotension can lead to impairment of uteroplacental perfusion, foetal hypoxia, acidosis, neonatal depression and

[Prehydratation and anaesthesia in obstetrics: state of the art].

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All epidural or spinal techniques using local anaesthetics causes some degree of sympathetic blockade resulting in peripheral vasodilatation and possibly hypotension or reduction in cardiac output. In the practical clinic, administration of fluids intravenously prior spinal and epidural anaesthesia

Techniques for preventing hypotension during spinal anaesthesia for caesarean section.

Csak regisztrált felhasználók fordíthatnak cikkeket

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BACKGROUND Maternal hypotension is the most frequent complication of spinal anaesthesia for caesarean section. Most workers define hypotension as a maternal systolic blood pressure below 70-80% of baseline recordings and/or an absolute value of < 90 - 100mmHg. Hypotension is often associated with

[Case of general anesthesia combined with epidural anesthesia in a pregnant woman undergoing thoracotomy for spontaneous pneumothorax].

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General anesthesia combined with epidural anesthesia for thoracotomy due to spontaneous pneumothorax was given to a pregnant woman at 21st week of gestation. She was premedicated intravenously with famotidine 20 mg and metoclopramide 10 mg. Mepivacaine 1% was administered through a thoracic epidural

A proposed psychosomatic etiologic model for rheumatoid arthritis.

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This model attributes rheumatoid arthritis to reduction or loss of muscle tone. It is hypothesized that tone is maintained via a neurological feedback loop consisting of a spontaneous (fusimotor) signal from the central nervous system (CNS), a return signal from the sensors and a toning signal from

[Removal of femoral interlocking nail-induced pulmonary embolism under spinal anesthesia--a case report].

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Most of the lower limb surgeries are done under spinal anesthesia. This 21 year-old male had undergone open reduction with interlocking nail for his right femoral fracture and was scheduled for removal of interlocking nail. Spinal anesthesia was performed and a sensory block up to T8 level was

Techniques for preventing hypotension during spinal anaesthesia for caesarean section.

Csak regisztrált felhasználók fordíthatnak cikkeket

Belépés Regisztrálás

BACKGROUND Maternal hypotension is the most frequent complication of a spinal anaesthetic for caesarean section with an incidence approaching 100%. Most workers define hypotension as a maternal systolic blood pressure below 70-80% of baseline recordings and/or an absolute value of < 90 -100mmHg. The

Prospective, randomized trial comparing general with spinal anesthesia for cesarean delivery in preeclamptic patients with a nonreassuring fetal heart trace.

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BACKGROUND There are no randomized studies on neonatal outcome after spinal versus general anesthesia for cesarean delivery in preeclamptic patients with a nonreassuring fetal heart trace. This study examined both markers of neonatal hypoxia and maternal hemodynamics. METHODS Seventy patients were

Comparison of postoperative analgesic effect of intrathecal magnesium and fentanyl added to bupivacaine in patients undergoing lower limb orthopedic surgery.

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OBJECTIVE To compare the analgesic efficacy and side effects of magnesium and fentanyl as an additive to intrathecal bupivacaine. METHODS Ninety adult patients scheduled for femur surgery under spinal anesthesia were randomly allocated to one of the following three groups to receive intrathecally:

Neuropsychological deficits of a U.S. Army pilot following an anoxic event as a function of cardiac arrest.

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Anoxic encephalopathy occurs as a result of cardiac arrest, respiratory distress, or carbon monoxide poisoning. This is a case report on the neuropsychological deficits of anoxia in an otherwise previously healthy 36-year-old male pilot. The patient was taking an over-the-counter supplement that

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