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Query: UMLS:C0038454 (stroke)
 147,016 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

In ten hypertensive late pregnant women with passing crises of hypertension cardiovascular analysis with the method of quantitative sphygmometry, the unbloody recording of the blood pressure and the direct electronic measuring of the pulse wave velocity were made before and after the intravenous injection of 300 mg Diazoxid (Hypertonalum). This drug is recommended to the treatment of severe preeclampsia and eclampsia because of lessening the arterial blood pressure and the total peripheral resistance, increasing the heart rate, stroke volume and cardiac output.
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PMID:[The haemodynamic principle of action of diazoxide (hypertonalum) in the treatment of acute hypertensive crises in late pregnant women (author's transl)]. 46 55

Neurologic emergencies during pregnancy are not encountered often but contribute significantly to maternal mortality. This chapter reviews neurologic emergencies with an emphasis on pathophysiology and related nursing care for patients with epilepsy, status epilepticus, eclampsia, intracranial hemorrhage, increased intracranial pressure, ischemic stroke, myasthenia gravis, autonomic hyperreflexia, Wernicke's encephalopathy, and chorea gravidarum.
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PMID:Neurologic emergencies in pregnancy. 138 4

A newborn is described, who was born in term with 3250 g weight, after intrauterine hypoxia. She was born with vacuum extraction, and suffered from birth trauma and intrauterine infection. At age of one day manifested an eclampsia, which was hardly diminishable. The serum Na level was 118 mmol/l. Bilateral adrenal apoplexy was visible with ultrasound. The newborn was treated with infusion of sodium chloride and glucose, with antibiotic and glucocorticoid hormone. Her condition improved rapidly. Her serum cortisol level at 8 and 15 day after stopping of 12 days prednisolon therapy was below 2.5 micrograms/dl, marking hypadrenia. At age 3 months the function of adrenals was normal: the serum cortisol level was 11.4 micrograms/dl, and after ACTH stimulation it run up to 44.5 micrograms/dl. By screening of 1491 newborns, 13 adrenal apoplexy was found. The other 12 were one-sided and symptomless.
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PMID:[Bilateral neonatal adrenal hemorrhage associated with hypoadrenalism]. 158

Many neurologic disorders, such as eclampsia, pseudotumor cerebri, stroke, obstetric nerve palsies, subarachnoid hemorrhage, pituitary tumors, and choriocarcinoma, can develop in the pregnant patient. Maternal mortality from eclampsia, which ranges from 0 to 14%, can be due to intracerebral hemorrhage, pulmonary edema, disseminated intravascular coagulation, abruptio placentae, or failure of the liver or kidneys. Associated fetal mortality ranges from 10 to 28% and is directly related to decreased placental perfusion. Pseudotumor cerebri can be associated with serious visual complications; thus, the therapeutic goal is to prevent loss of vision. The risk of stroke in the pregnant patient is 13 times the risk in the nonpregnant patient of the same age. The major causes of stroke in pregnant patients are arterial occlusion and cerebral venous thrombosis. Lumbar disk prolapse is common in pregnant patients, and lumbosacral plexus injuries can occur during labor or delivery. In addition, peripheral nerve compression or entrapment syndromes are thought to be caused by the retention of fluid during pregnancy. The incidence of subarachnoid hemorrhage during pregnancy is 1 in every 10,000 patients, a rate 5 times higher than in nonpregnant women. Because of a proliferation of prolactin-secreting cells, the pituitary gland can enlarge dramatically during pregnancy, a change that can disclose a previously unknown tumor or cause a known pituitary tumor to become symptomatic. The incidence of choriocarcinoma is 1 in 50,000 full-term pregnancies but 1 in 30 molar pregnancies. This malignant tumor has a high rate of cerebral metastatic lesions. In addition to these disorders that develop during pregnancy, the pregnant state can affect numerous preexisting neurologic conditions, including epilepsy, headaches, multiple sclerosis, myasthenia gravis, spinal cord injury, and brain tumors. We discuss advice for patients with such conditions who wish to become pregnant, recommendations for medical and surgical management, and surgical considerations for neurologic complications during pregnancy.
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PMID:Selected neurologic complications of pregnancy. 225 22

Recent evidence supports the concept that cerebral vasospasm is involved in the pathogenesis of eclampsia. Magnesium, which has a beneficial effect in eclampsia, may act by opposing calcium-dependent arterial constriction, thereby relieving vasospasm. Magnesium may also antagonize the increase in intracellular calcium concentration caused by ischemia and thus prevent cell damage and death. Magnesium might have a role in the treatment of cerebral vasospasm and ischemia, such as occurs in subarachnoid hemorrhage, ischemic stroke, and brain trauma.
Stroke 1989 Sep
PMID:Action of magnesium sulfate in the treatment of preeclampsia-eclampsia. 267 28

In two cases of eclampsia with consumptive thrombocytopenia, the maximum increase in blood pressure and the lowest platelet count coincided with the maximum degree of neurologic and neuroradiologic abnormality. Computed tomograms showed decreased attenuation, and T2-weighted magnetic resonance images showed increased signal intensity focally in the cerebral cortex and the deep gray and white matter. Blood pressure, platelet count, clinical status, and roentgenograms normalized completely in both cases. Severe arterial hypertension and disseminated transitory microvascular occlusions presumably caused multiple small foci of brain edema that resolved without remaining detectable ischemic brain damage.
Stroke 1989 Apr
PMID:Repeated cranial computed tomographic and magnetic resonance imaging scans in two cases of eclampsia. 292 32

There were 37 maternal deaths among the 109,221 livebirths registered during the period 1977-86 in Bahrain, Arabian Gulf. The maternal mortality rate was 33.9/100,000 for the 10-year study period; however, disaggregation reveals a decline in this rate from 42.3/100,000 in 1977-81 to 26.9/100,000 in 1982-86. This decline presumably reflects streamlining of the Ministry of Health's maternity services, including a central maternity hospital with all modern facilities that serves as a referral center for all of Bahrain, 2 peripheral hospitals with provision for blood transfusion and surgical deliveries, and 3 maternity units managed by fully qualified midwives. About 80% of deliveries are covered by these maternity services; only 2.5% of deliveries occur in the home. Despite this highly developed maternity care system, 18 of the maternal deaths were due to direct obstetric cause: hemorrhage, 7; pre-eclampsia and eclampsia, 5; abortion septicemia, 2; bowel perforation during cesarean section, 1; thromboembolism, 2; and amniotic fluid embolism, 1. The causes of the 19 indirect maternal deaths were: pulmonary embolism, 5; infection, 7; cardiac failure, 2; cerebrovascular accident, 2; pulmonary hypertension, 1; and uncertain, 2. Of interest is the finding that sickle cell disease was the underlying cause of maternal death in 12 of the 37 deaths in this series. Sickle cell disease was implicated in 3 of the deaths from hemorrhage, all 5 deaths from pulmonary embolism, 2 deaths from septicemia, and the 2 cases of cardiac failure. In this series, 50% of the patients with sickle cell disease had thromboembolic crises following treatment of anemia with packed cell transfusion. Blood transfusion, especially of packed cells, should be given with caution to these patients since it may precipitate vaso-occlusive crisis by increasing blood viscosity. Since sickle cell disease represents a high risk during pregnancy in this Arab population, such patients should have frequent prenatal check-ups and deliver in a well-equipped hospital.
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PMID:Maternal mortality in Bahrain with special reference to sickle cell disease. 321 81

We describe a patient who experienced focal cerebral and brainstem ischemia in the setting of postpartum eclampsia. Cerebral angiography showed spasm of large- and medium-caliber arteries. This case provides rare documentation that vasospasm may account for cerebral ischemia in eclamptic women with focal signs. This observation suggests that in such patients cerebral angiography may be informative and useful.
Stroke 1988 Mar
PMID:Cerebral vasospasm and eclampsia. 335 16

Stroke is a leading cause of maternal death. Intracerebral hemorrhage may be associated with eclampsia, metastatic choriocarcinoma or ruptured arteriovenous malformations. Intracranial venous thrombosis may result from a hypercoagulable state or local intracranial vascular damage. Subarachnoid hemorrhage is usually caused by the rupture of an intracranial aneurysm or arteriovenous malformation. Signs and symptoms of stroke in pregnancy can be confusing. The physician must be aware of these signs to avoid mismanagement of the pregnant stroke patient.
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PMID:Cerebrovascular disorders associated with pregnancy. 371 65

Three patients with eclampsia and four with severe preeclampsia underwent pulmonary artery catheterization before either labor or significant volume infusion. There was no difference in systemic or pulmonary vascular resistance, cardiac index, left ventricular stroke work index, or any other hemodynamic parameters between the eclamptic and severely preeclamptic patients. Despite the small numbers, plasma colloid osmotic pressures were significantly lower in the eclamptic patients. Factors other than the intensity of peripheral vasospasm may primarily affect the occurrence of grand mal seizures in patients with preeclampsia.
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PMID:Preeclampsia/eclampsia: hemodynamic and neurologic correlations. 402 95


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