hypertensive crisis

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Related to hypertensive crisis: Hypertensive encephalopathy


 [kri´sis] (pl. cri´ses) (L.)
1. the turning point of a disease for better or worse; especially a sudden change, usually for the better, in the course of an acute disease.
2. a sudden paroxysmal intensification of symptoms in the course of a disease.
addisonian crisis (adrenal crisis) the symptoms accompanying an acute onset or worsening of addison's disease: anorexia, vomiting, abdominal pain, apathy, confusion, extreme weakness, and hypotension; if untreated these progress to shock and then death.
aplastic crisis a sickle cell crisis in which there is temporary bone marrow aplasia.
blast crisis a sudden, severe change in the course of chronic granulocytic leukemia, characterized by an increased number of blasts, i.e., myeloblasts or lymphoblasts.
catathymic crisis an isolated, nonrepetitive act of violence that develops as a result of intolerable tension.
celiac crisis an attack of severe watery diarrhea and vomiting producing dehydration and acidosis, sometimes occurring in infants with celiac disease.
developmental crisis maturational crisis.
hemolytic crisis an uncommon sickle cell crisis in which there is acute red blood cell destruction with jaundice.
hypertensive crisis dangerously high blood pressure of acute onset.
identity crisis a period in the psychosocial development of an individual, usually occurring during adolescence, manifested by a loss of the sense of the sameness and historical continuity of one's self, confusion over values, or an inability to accept the role the individual perceives as being expected by society.
life crisis a period of disorganization that occurs when a person meets an obstacle to an important life goal, such as the sudden death of a family member, a difficult family conflict, an incident of domestic violence (spouse or child abuse), a serious accident, loss of a limb, loss of a job, or rape or attempted rape.
maturational crisis a life crisis in which usual coping mechanisms are inadequate in dealing with a stress common to a particular stage in the life cycle or with stress caused by a transition from one stage to another. Called also developmental crisis.
myasthenic crisis the sudden development of dyspnea requiring respiratory support in myasthenia gravis; the crisis is usually transient, lasting several days, and accompanied by fever.
oculogyric crisis a symptom of an acute dystonic reaction in which the person demonstrates a fixed gaze, usually upward; also, the uncontrollable rolling upwards of the eye. It can be a result of encephalitis or a reaction to antipsychotic medications.
salt-losing crisis see salt-losing crisis.
sickle cell crisis see sickle cell crisis.
tabetic crisis a painful paroxysm occurring in tabes dorsalis.
thyroid crisis (thyrotoxic crisis) see thyroid crisis.
vaso-occlusive crisis a sickle cell crisis in which there is severe pain due to infarctions in the bones, joints, lungs, liver, spleen, kidney, eye, or central nervous system.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

hypertensive crisis

A rare clinical event characterized by a severe and/or acutely ↑ diastolic BP > 120-130 mm Hg; an HC is a medical emergency if accompanied by rapid or progressive CNS–encephalopathy, infarction or hemorrhage, cardiovascular–myocardial ischemia, infarction, aortic dissection, pulmonary edema, and renal deterioration, eclampsia or microangiopathic hemolytic anemia Etiologic factors Pre-existing chronic HTN; renovascular HTN; renal parenchymal disease; scleroderma and collagen vascular disease; drugs–sympathomimetics, tricyclic antidepressants, withdrawal from antihypertensives, recreational–eg, crack cocaine; spinal cord syndromes; pheochromocytoma Clinical Severe headache, transient blindness, vomiting, rapid deterioration of renal function Complications Acute end-organ damage–eg, myocardial ischemia/infarction, renal failure, aortic dissection, stage 3 or 4 hypertensive retinopathy Treatment Organ-targeted therapy with CCBs, Lobetalol, loop diuretics, nitroglycerin, nitroprusside Prognosis Untreated 5-yr mortality is 100%
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

hypertensive crisis

Any severe elevation in blood pressure (usually a diastolic pressure greater than 130 mm Hg) with or without damage to internal organs or other structures, e.g., brain, heart, aorta, kidneys. In hypertensive emergencies, end organs are damaged, and antihypertensive drugs usually are given intravenously to try to lower the blood pressure within an hour. Agents used in hypertensive emergencies include sodium nitroprusside, nitroglycerin, labetalol, and enalaprilat.

In hypertensive urgencies, the blood pressure is extremely elevated, but there is no sign or immediate threat of organ damage. Typically, oral beta blockers, ACE inhibitors, or clonidine, alone or in combination, are given to lower pressures over 1 or 2 days.

See also: crisis
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Of these, 22 (79%) had 1 hypertensive crisis, 4 (14%) had 2 and 2 (7%) had 3 crises.
Without preoperative medical treatment, induction of anaesthesia or other stimuli can cause a hypertensive crisis, cardiac arrhythmias, and infarction or stroke, due to massive catecholamine release.
Airway management can be planned in advance avoiding the 'can't intubate, can't ventilate' situation, which will most surely result in the development of a pulmonary hypertensive crisis.
Following an overview of the disease, chapters take readers through each step of confirmation and staging, assessment of organ damage and secondary hypertension, risk stratification, treatment approaches and compliance, specific drugs, and other aspects, such as hypertensive crisis and resistant hypertension.
MAOIs carry the risk of hypertensive crisis and serotonin syndrome.
Its clinical presentation includes headache, palpitations and diaphoresis that can lead to an episodic hypertensive crisis due to increased catecholamine production.
Modality Indication 1 CT Staging for Rectal Adenocarcinoma 2 CT Malignancy Unknown Primary, rule out abdominal metastasis 3 CT Abdominal Pain 4 CT Abdominal Pain 5 CT Suspected Pheochromocytoma, Hypertensive Crisis 6 CT Trauma 7 CT Visual Loss 8 CT Symptomatic Nephrolithiasis 9 CT Abdominal Pain 10 CT Suspected Pheochromocytoma 11 U/S Glomerulonephritis 12 CT History Leukemia, rule out Lymphadenopathy 13 Cystoscopy Hematuria 14 CT Abdominal Pain 15 CT Suspected Pheochromocytoma 16 CT Follow-up Pheochromocytoma 17 CT Malignant HTN, Increased VMA 18 MRI Hypertensive Crisis, Increased Catecholamines 19 MRI Hypertensive Crisis, Increased Catecholamines 20 CT Abdominal Pain
Blood pressure that high is a life-threatening condition known as a hypertensive crisis. You would have breathlessness, headaches, visual disturbances and possible collapse.It's very unlikely you could havewrittentomeandmuchmorelikely tobea faulty monitor.
His kidneys stopped functioning, and he went into hypertensive crisis. He was hospitalized and IgA nephropathy was diagnosed.
In a litigated case where a woman developed a hypertensive crisis after being prescribed Deconamine, a sympathomimetic decongestant, the pharmaceutical company successfully relied on the learned-intermediary doctrine for its defense.
Failure to manage blood pressure adequately could make AD difficult to differentiate and lead to a hypertensive crisis.

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