Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0020538 (hypertension)
 170,190 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Reversible posterior leukoencephalopathy syndrome is a clinical-radiological phenomenon associated with headache, vomiting, lethargy, visual disturbances and seizures, concomitant with radiological abnormalities predominantly within posterior cerebral white matter due to cerebral edema. There are multiple triggers as acute hypertension, cancer, hematological disease, renal pathology, red cells transfusions and different drugs. We present two patients with reversible posterior leukoencephalopathy under treatment for acute lymphoblastic leukemia because of the probable association with vinca alkaloids.
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PMID:[Reversible posterior leukoencephalopathy: report of two cases after vincristine treatment]. 1835 42

A 14-year-old female had repeated vomiting, headache, abdominal pain, visual field deficit and lethargy at the onset of hypertensive encephalopathy. Cerebrospinal fluid (CSF) test revealed a high level of IgG and protein. MRI demonstrated no supratentorial cerebral lesions but hyperintense lesions were observed from the lower pons to the Th8 level of spinal cord and cerebellar cortex on T2 weighted and FLAIR images without contrast enhancement. The two antihypertensive drugs stabilized to control her blood pressure and improved her clinical symptoms. Reexamination of MRI and cerebrospinal fluid test also revealed clear improvement of the above abnormalities. The abnormal findings on abdominal CT and renography led us to suspect renal infarction. Abdominal angiography demonstrated multifocal stenoses of renal interlobar arteries, which were supposed to supply the renal infarcted regions. These suggested that the renal infarctions due to fibromuscular dysplasia caused systemic hypertension. There have been only two reports that demonstrated spinal cord lesions in reversible posterior leukoencephalopathy syndrome (RPLES). We report extensive spinal lesions on MRI and a high level of IgG in CSF at the subacute phase in a young female with RPLES associated with hypertensive (brainstem) encephalopathy.
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PMID:A case of hypertensive encephalopathy with extensive spinal lesions on MRI. 1973 90

We present the case of an 87-year-old woman with history of hypertension, hypercholesterolemia, ischemic heart diseases, urinary tract infections, and cerebrovascular disease who experienced a transient clinical picture characterized by confusion, lethargy, and acute renal dysfunction in the course of urinary tract infection with Escherichia coli bacteremia. Escherichia coli bloodstream infection was associated with brain computed tomography (CT) and magnetic resonance imaging (MRI) patterns in which the lesion distribution was consistent with posterior reversible encephalopathy syndrome (PRES). Diagnosis of PRES was confirmed by demonstration of vasogenic edema on apparent diffusion coefficient (ADC) maps and near-complete resolution of clinical manifestations at discharge.
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PMID:Posterior reversible encephalopathy syndrome in an 87-year-old woman with Escherichia coli bloodstream infection. 1988 4

From the standpoint of nutritional needs, physiological maturation, and immunological safety the provision of foods other than breast milk before about four months of age is unnecessary and may also be harmful. On the other hand, many infants require some complementary feeding by about six months of age. There are a number of known disadvantages and risks involved in too early complementary feeding, including interference with the infant's feeding behaviour, reduced breast-milk production, decreased iron absorption from breast milk, increased risk of infections and allergy in infants, and increased risk of a new pregnancy. With many complementary foods, including undiluted cow's milk, there is also a risk of a water deficit with a resultant hyperosmolarity and hypernatraemia that, in extreme cases, can lead to lethargy, convulsions, and even residual brain damage. Other possible implications include the development of obesity, hypertension, and arteriosclerosis in later life. The decision about when to start complementary feeding depends not only on age but also on the developmental stage of the individual infant, the type of food available, the sanitary conditions in which the food is prepared and given, and family history of atopic disease.
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PMID:Physiological development of the infant and its implications for complementary feeding. 2060 70

Understanding the particular pharmacology of different antidepressant drugs can help explain their adverse effects when they are discontinued. For all antidepressant drugs, abruptly stopping them can sometimes result in "rebound" hypomania or mania. Antidepressant drugs having anticholinergic effects often are associated with a discontinuation syndrome characterized by cholinergic rebound, with symptoms of nausea, vomiting, abdominal cramping, sweating, headache, and muscle spasms. Discontinuation of monoamine oxidase inhibitor drugs sometimes results in flu-like symptoms, dysphoria, restlessness, tachycardia, hypertension, and a delirium-like state. Serotonergic antidepressant drugs are sometimes associated with a distinct discontinuation syndrome characterized by dizziness, weakness, nausea, headache, lethargy, insomnia, anxiety, poor concentration, and paresthesias. Adverse discontinuation effects can occur with all types of antidepressant drugs, but only rarely would they be considered serious. To minimize adverse discontinuation effects and to reduce the risk of relapse or recurrence of the underlying treated condition, tapering antidepressant medication is prudent for all patients.
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PMID:Potential adverse effects of discontinuing psychotropic drugs: part 2: antidepressant drugs. 2060 81

A 2-year-old girl was found with an empty bottle of levothyroxine and blue coloring around her mouth. Forty tablets of 150-microg levothyroxine tablets were missing. Her 6-hour postingestion total thyroxine (T4) level was 68.1 microg/dL (normal range: 5-12 microg/dL), and her total triiodothyronine (T3) level was 472 ng/dL (normal range: 40-130 ng/dL). Serum levels of thyrotropin, T3, and T4 were then checked on days 3, 5, 7, and 10. On postingestion day 5, the child presented for follow-up with hyperthermia, vomiting, irritability, and increased lethargy. She was referred to the emergency department, where a heart rate of 220 beats per minute, a blood pressure of 130/80 mm Hg, and a temperature of 101 degrees F were recorded. She also had multiple episodes of diarrhea. The patient was treated with oral propranolol (0.8 mg/kg) every 6 hours, intravenous normal saline, and ibuprofen; all her vital signs improved. Serial T3, T4, and thyrotropin serum levels were measured. Her total T3 levels were >800, 798, 445, 446, and 98 ng/dL on days 3, 5, 6, 9, and 13, respectively. Total T4 measurement was repeated on day 13, and the concentration was found to be 11.9 microg/dL. Her thyrotropin levels remained undetectable throughout the course of treatment. The patient was discharged from the hospital after a 4-day PICU stay, in good condition, on oral propranolol 0.8 mg/kg every 8 hours. Propranolol administration was discontinued 8 days after initiation with no further tachycardia, hypertension, or hyperthermia. The child tolerated the recommended regimen.
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PMID:Thyroid storm after pediatric levothyroxine ingestion. 2064 22

This report describes a 14-year-old neutered male Norwegian Forest cat that was evaluated for a complaint of inappetence, lethargy, and ocular protrusion with third eyelid prolapse. The systemic blood pressure was elevated at 205/129 mmHg. Fundic examination revealed severe retinal hemorrhage in both eyes. Based on an ultrasound study of the retrobulbar area, a thrombus caudal to the right globe was suspected. Over 18 days, the cat exhibited significant clinical improvement as well as good blood pressure control. To our knowledge this is the first report of a retrobulbar thrombus in a cat with systemic hypertension.
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PMID:Retrobulbar thrombus in a cat with systemic hypertension. 2118 57

Demyelination is characterized by the loss of myelin with the preservation of axons. Demyelinating diseases can be classified into several categories: demyelination due to inflammation, viral infection, osmotic derangements and hypoxic ischemia. In particular, osmotic myelinolysis is representative, and is associated with hyperosmolality, hypokalemia or rapid correction of hyponatremia. Osmotic myelinolysis was reported to be associated with underlying conditions, such as alcoholism, diuretics and malnutrition. A 67-year-old woman with hypertension was scheduled to undergo both total knee replacements (TKR). She was observed to be lethargic with dysphagia and quadriplegia after the second TKR. She had been taking diuretics for a long time, and did not have an adequate amount of food intake due to patient controlled analgesia and a gastric ulcer after the first TKR. A laboratory examination revealed hypokalemia but normonatremia. T2 weighted-MRI revealed abnormal high signal intensity in the basal ganglia and periventricular area. This case was diagnosed with osmotic myelinolysis associated with hypokalemia without an apparent sodium imbalance.
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PMID:Extensive demyelinating change in cerebrum after a total knee replacement -A case report-. 2128 40

Posterior reversible encephalopathy syndrome (PRES) was originally used to describe a reversible, predominantly posterior leukoencephalopathy in patients who had renal insufficiency, hypertension, or who received immunosuppressive therapy. Since PRES is prevalent in children with kidney diseases, awareness and understanding of it is important for practicing pediatric nephrologists. A comprehensive approach to the diagnosis of PRES includes thorough determination of predisposing factors, clinical symptoms, and mandatory appropriate imaging. Unfortunately, the pathophysiology of PRES is still obscure and specificity of radiological examination has not yet been established. Two major predisposing factors, namely hypertension and calcineurin inhibitors, are well recognized. In addition, nephrotic syndrome is a common underlying condition for development of PRES. Frequent symptoms include altered consciousness (coma, stupor, lethargy, confusion), seizure, headache, and visual disturbance. Most of these symptoms usually develop abruptly and resolve within a few weeks after proper management. Cranial magnetic resonance (MR) imaging is the first-line modality of imaging studies for detecting PRES. Diffusion-weighted imaging with quantification of apparent diffusion coefficient (ADC) values by ADC mapping may provide more accurate and specific images in the future.
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PMID:Posterior reversible encephalopathy syndrome in children with kidney diseases. 2155 18

Simultaneous or subsequent bilateral thalamic haemorrhage is rare, and most reported cases are from Asian countries. An 80-year-old white Cuban man, with a history of arterial hypertension, suffered sudden onset of right hemiparesis. Computed tomography (CT) scan showed a left posteromedial thalamic haemorrhage. Two days later his condition suddenly deteriorated: blood pressure was 220/105 mm Hg, he was stuporous and tetraplegic, respiration was ataxic, and his gaze was fixed and deviated downward and inward. CT scan showed haemorrhages in both thalami, extending to the ventricles. 32 h later the patient died. There are few previous publications of simultaneous or subsequent bilateral thalamic haemorrhages and this is the first report involving a Hispanic patient. Prognosis in patients with bilateral thalamic haemorrhage is poor, and the mechanism underlying the development of subsequent and symmetrical bleeding is not clear.
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PMID:Subsequent bilateral thalamic haemorrhage. 2170 30


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