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Query: UMLS:C0036572 (seizures)
 80,221 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Cimetidine and phenytoin are useful medications often used together in patients with seizure disorders secondary to brain masses or metabolic abnormalities. We describe a case of thrombocytopenia in the setting of concurrent phenytoin, dexamethasone and cimetidine administration, and compare it with previously described cases of thrombocytopenia induced by concurrent use of phenytoin, cimetidine, and glucocorticoids. The similarities between these cases suggest mechanisms by which these agents may induce thrombocytopenia, specifically through potential downregulation of epoxide hydrolase by glucocorticoids.
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PMID:Thrombocytopenia following administration of phenytoin, dexamethasone and cimetidine: a case report and a potential mechanism. 832 96

Preeclampsia is a multisystem disorder of pregnancy whose clinical presentation is related to the importance and the extent of maternal microvasculature damage. 16 patients with preeclampsia, thrombocytopenia (< 100,000/mm3), elevated liver enzymes and hemolysis are described. Weinstein in 1982 assigned the acronym of Hellp syndrome for this clinical presentation of preeclampsia. This syndrome was seldom recognized during the first years of the study but was diagnosed later on, in 1 pregnancy out of 600 parturitions and in 5% of preeclampsia in 1991. Two out of the patients developed eclamptic seizures. The mode of delivery was as follows: 9 out of 16 had an emergency Caesarean section; the 7 other patients had vaginal delivery after induction of labor. Delivery occurred before 32 weeks of gestation for 6 out of 17 newborns. Outcome was good for 14 of the 17 newborns (one twin pregnancy). Two fetuses died: one in utero and one during interruption of the pregnancy at 24 weeks of gestation. A small for gestational age preterm of 32 weeks died on his second day of life. Early diagnosis of Hellp Syndrome, especially when abdominal pains are present, allows a prompt management of these patients, including delivery, which appeared in our experience, the only way to avoid fetomaternal complications. The thrombotic microangiopathics and acute fatty liver of pregnancy are potential imitations of Hellp syndrome and they must be considered for differential diagnosis. The frequency of Hellp Syndrome varies from one study to another. It can be increased up to 6 fold if referred to the number of pregnancies and up to 3 fold if referred to the number of preeclampsias. These differences can be real but may be due to bias related to differences in practice between centers and also differences in definitions of Hellp Syndrome and preeclampsia.
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PMID:[The Hellp syndrome: a frequent (?) obstetric emergency]. 835 77

A 78-year-old woman was admitted to our hospital because of disorientation and fever on January 21, 1992. Two days before admission she experienced vomiting, anorexia and general malaise. Laboratory examinations on admission disclosed a hemoglobin level of 11.1 g/dl and a platelet count of 8,000/microliters. The peripheral blood smear revealed anisocytosis with numerous schistocytes and poikilocytes. Polychromatophilic and nucleated red blood cells were also seen, and the reticulocyte count was 38/1000. Her serum lactate dehydrogenase (LDH) value was 2,977 WU and the total serum bilirubin level was 3.5 mg/dl with 2.7 mg/dl indirect reacting fraction. Serum creatinine was 4.7 mg/dl. Her consciousness became semicomatose after a systemic seizure which lasted approximately 15 seconds and her hemoglobin level decreased to 8.5 g/dl on hospital day 2. Therefore, we diagnosed her as having thrombotic thrombocytopenic purpura (TTP) because of the presence of all 5 features, that is, thrombocytopenia, microangiopathic hemolytic anemia, fluctuating neurologic abnormalities, renal dysfunction and fever. A plasmapheresis with fresh frozen plasma (FFP) replacement was begun on that day. She was also treated with anti-platelet agents, 80 mg/day aspirin, and 300 mg/day dipyridamole. Moreover, packed red blood cells (PRC) were infused. While also receiving diphenylhydantoin and phenobarbital to prevent convulsions, status epilepticus developed on day 3. Because of inhibited spontaneous respiration which was an adverse effect derived from diazepam and sodium thiamylal administered intravenously to treat the status epilepticus, an artificial respiration was initiated.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[An elderly case of thrombotic thrombocytopenic purpura]. 848 87

The rural CGW population has not yet undergone the metamorphosis experienced by its urban counterparts. Reminiscent of a past era, suicides far outweight homicides. Although many rural firearm injuries involve hunting accidents, these comprise only a small fraction of CGW at best. Similarly, although many rural firearm injuries involve shotguns or rifles, few CGW result from these weapons. Although the number of patients is small, those with shotgun or rifle injuries manifest lower mortality rates. The authors have confirmed the notion that caliber of civilian weapons is difficult to correlate with outcome. The geographic size of the rural catchment area is an important consideration because it must select a population able to withstand transfer. The authors noted an inverse relationship between length of time before arrival at the facility and mortality. The selection phenomenon probably accounts for the reduced mortality found in the authors series versus most others. Prognostic features of individual gunshot wounds are likely to be similar among varied populations when circumstances of the injury are matched. Thus, one expects similar features on initial examination and CT scan to have similar predictive value. The authors confirmed that CGS and specific deficits were strong predictors of outcome. No patient with a GCS score of 5 or less on admission survived. Absent pupillary response, absent brain stem function, presence of respiratory drive or cough only, and posturing were strong indicators of impending death. The authors confirmed the prognostic value associated with CT evidence of intraventricular hemorrhage, transventricular trajectory, transtentorial herniation, massive edema, and bihemispheric injury. Interestingly, presence of extensive facial fractures, an indicator of trajectory, suggested better outcome. Subarachnoid hemorrhage did not reach prognostic significance. Roughly half of the authors' patients had positive serum ethanol levels, although the test was unable to discern prognosis. Abnormality of any coagulation parameter and frank disseminated intravascular coagulation were correlated with poor outcome. Likewise, thrombocytopenia occurring within the first 24 hours was an indicator of poor prognosis. Although prophylactic antibiotics were not used in all cases, the authors encountered no deep or superficial infections in surviving patients. The prevalence of seizures in the authors' series despite prophylactic AED is unusually high. This feature merits further study.
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PMID:Characteristics of cerebral gunshot injuries in the rural setting. 852 5

A 44-year-old Spanish woman travelled in Kenya without doing correct malarial prophylaxis. Upon her return to Spain, she suffered from Plasmodium falciparum malaria. She was initially treated with chloroquine for three days, but her state worsened and she was admitted to our intensive care unit. On admission, parasitaemia was 22%. She had hyperpyrexia, obtundation, hypotension, tachycardia, tachypnoea, jaundice, digestive haemorrhage, petechiae in her soles, oliguria with elevation of serum uraemia and creatinine, anaemia, thrombocytopaenia, hypoproteinaemia, hyponatraemia, hypocalcaemia, metabolic acidosis and parameters of disseminated intravascular coagulation. She was given quinine, sulfadoxine-pyrimethamine and clindamycin. An exchange transfusion was performed, during which an acute pulmonary oedema appeared, initially with high pulmonary artery wedge pressure. She required mechanical ventilation for 16 days and haemodialysis for 11 days. She remained in coma and had seizures which required diazepam, phenitoin and thiopentone. She received a total amount of 22 units of packed erythrocytes, 55 of platelets and 15 of plasma. After the first week, she had nosocomial infection due to Escherichia coli, Staphylococcus and Pseudomonas aeruginosa and was treated with the corresponding antibiotics. She cured completely. This case report gives us the possibility of discussing on frequent problems in the prevention and treatment of malaria, and on the treatment of severe, life-threatening malaria in the setting of the intensive care unit.
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PMID:[Multiple organ failure in Plasmodium falciparum malaria]. 853 25

Surgical treatment is increasingly used for patients with medically re fractory seizures. Valproate (VPA) is an effective, widely used anticonvulsant in this patient population, but believed by some researchers to increase surgical bleeding because of quantitative thrombocytopenia and functional defects in platelet aggregation. Because we have observed no clinical evidence that perioperative administration of VPA increases blood loss or complications related to postoperative bleeding in patients undergoing temporal lobectomy at our institution, we sought to test this hypothesis. We made a retrospective review of the medical records of all patients who underwent epilepsy surgery at the University of California, San Francisco Medical Center, from September 1986 through January 1993. Patients who had a temporal lobectomy and whose medical records documented preoperative platelet counts and pre- and postoperative hematocrit and hemoglobin values were included. We excluded patients who had cranial surgery before temporal lobectomy and those with intracranial neoplasms or vascular malformations. Patients were divided into two groups: those who received VPA in the immediate preoperative period and those who had not received VPA recently. We compared the estimated surgical blood loss and the estimated change in red blood cell (RBC) volume between groups by unpaired t tests. The charts of 87 consecutive patients qualified for inclusion in the study. Patients in the VPA group had relative (but not absolute) thrombocytopenia preoperatively (235 +/- 64 vs. 277 +/- 69 k in the No-VPA group). There were no differences in the estimated blood loss, RBC volume, or in the incidence of postoperative transfusion. VPA apparently does not increase complications of hemostasis during therapeutic surgical resections for epilepsy. Therefore, we do not recommend routinely discontinuing VPA before craniotomy.
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PMID:Preoperative valproate administration does not increase blood loss during temporal lobectomy. 957 31

Antiphospholipid antibodies have been associated with thrombosis, fetal wasting, and thrombocytopenia. We discuss a case of antiphospholipid syndrome with the rarely recognized presentation of generalized tonic-clonic seizure during pregnancy. This case emphasizes the need for evaluation of possible hypercoagulable states in young adults with cerebrovascular events or newly diagnosed seizures.
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PMID:Antiphospholipid syndrome associated with seizures. 868 67

A case of acute microangiopathic hemolytic anemia in a 29-year-old primiparous patient is presented. Following an unsuspicuous pregnancy and uncomplicated delivery, the patient developed upper abdominal symptoms and transient psychopathologic abnormalities 2 days after delivery. Because of a series of generalized tonic-clonic seizures and respiratory distress she was admitted to the Neuro ICU. Focal neurological symptoms were absent, and CSF analysis was normal. Laboratory findings indicated hemolytic anemia with fragmented erythrocytes in smear specimens, thrombocytopenia, reticulocytosis, marked elevation of liver and pancreatic enzymes, and microhematuria. T2-weighted MR scans of the brain discluded multiple ischemic lesions of the cerebral white and gray matter, caudate nucleus and pons, displaying a hemodynamic pattern. Specific treatment included administration of corticosteroids, repeated plasmapheresis with substitution by fresh frozen plasma and antithrombin III. A control MR performed on the 3rd day of treatment demonstrated the absence of nearly all abnormal findings previously obtained. During a 3-week clinical course the patient showed full recovery, including normalization of hematologic and neuroradiologic findings. This case demonstrates ischemic cerebral lesions in acute microangiopathic hemolytic anemia to be potentially reversible if specific treatment is provided.
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PMID:[Reversible cerebral MRI findings in acute microangiopathic hemolytic anemia]. 876 6

We report the case of a 39-year-old para-4 gravida-4 who received polychemotherapy 5-fluorouracil 600 mg/m2, cyclophosphamide 600 mg/m2 and epirubicin 50 mg/m2 for invasive breast cancer (pT2N2Mo) with extensive metastatic involvement of all 23 axillary lymph nodes removed at 29 gestational weeks. Soon after the second course of chemotherapy at 35 weeks, she developed two eclamptic tonic-clonic seizures which were treated by antihypertensive and anticonvulsive drugs and delivery of a healthy infant, 1650 g (< 10th percentile) by cesarean section. That this patient indeed suffered from eclampsia was supported by the findings of transient postpartum severe hypertension (peak 170/110 mmHg), proteinuria (peak 3.2 g/24 h), incomplete features of the HELLP syndrome (thrombocytopenia 81,000/mm3, haptoglobin < 10 mg/dl) and of DIC, and by the results of cerebral CT scanning showing two 1-cm ischemic lesions. Since the detrimental effect of antineoplastic agents on the rapidly proliferating trophoblast is well known and as abnormal placental function, such as in triploidy, trisomy or hydatiform mole, has been associated with an increased risk for preeclampsia/eclampsia, a possible causal relationship between polychemotherapy and the subsequent development of this rare disorder is suggested.
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PMID:Eclampsia after polychemotherapy for nodal-positive breast cancer during pregnancy. 884 12

A retrospective review of all cases of eclampsia diagnosed at 3 obstetric teaching hospitals in Melbourne from January, 1978 to December, 1992 was undertaken. Ninety cases were identified; there were 5 maternal deaths and 17 perinatal deaths. Severe maternal morbidity such as pulmonary oedema, acute renal failure or HELLP syndrome was found in 26%. Significant maternal thrombocytopenia (< 100 x 10(9)/L) was found in 50% and 35% had abnormal maternal liver function tests. Forty six women received magnesium sulphate for treatment of eclampsia and of these 3 had further seizures compared to 4 of 18 who received phenytoin (odds ratio 0.24 (0.04-1.52) X2, p = 0.09). Eclampsia remains a significant complication of pregnancy with high maternal and perinatal mortality and morbidity. Results of this study show a trend that is in agreement with recent randomized controlled trials which demonstrate a reduced incidence of seizures and maternal and fetal complications with the use of magnesium sulphate. The results of these recent trials suggest that magnesium sulphate should be the drug of choice in the prevention and treatment of eclampsia.
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PMID:A review of eclampsia in Melbourne: 1978-1992. 888 47


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