Chronic hypertension causes: Difference between revisions
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Only in a small minority of patients with elevated arterial pressure, can a specific cause be identified. These individuals will probably have an [[endocrine]] or renal defect that, if corrected, could bring blood pressure back to normal values. Common causes include: | Only in a small minority of patients with elevated arterial pressure, can a specific cause be identified. These individuals will probably have an [[endocrine]] or renal defect that, if corrected, could bring blood pressure back to normal values. Common causes include: | ||
* [[Chronic kidney disease]]. Hypertension produced by diseases of the [[kidney]]. This includes diseases such as [[polycystic kidney disease]] or chronic [[glomerulonephritis]]. | |||
* [[Cushing's syndrome]] due to an excessive secretion of [[glucocorticoids]] which in turn causes the hypertension | |||
* Drugs: | |||
:*[[Nasal decongestants]] with adrenergic effects | |||
:*[[NSAIDs]] | |||
:*[[Oral contraceptives]] | |||
:*[[Steroids]] | |||
* [[Fever]] | |||
* [[Hyperaldosteronism]] ([[Conn's syndrome]]): Hypertension is a feature of a variety of adrenal cortical abnormalities. In primary [[aldosteronism]] there is a clear relationship between the aldosterone-induced sodium retention and the hypertension. | |||
:*[[Idiopathic hyperaldosteronism]] | |||
:*[[Liddle's syndrome]] (also called [[pseudoaldosteronism]]) | |||
:*[[Glucocorticoid remediable aldosteronism]] | |||
* [[Hyperthyroidism]] | |||
* [[Hypothyroidism]] | |||
* [[Obstructive sleep apnea]] | |||
* Perioperative hypertension: this is the development of hypertension just before, during or after surgery. It may occur before surgery during the induction of anesthesia; intraoperatively e.g. by pain-induced [[sympathetic nervous system]] stimulation; in the early postanesthesia period, e.g. by pain-induced [[sympathetic stimulation]], [[hypothermia]], [[hypoxia]], or hypervolemia from excessive intraoperative fluid therapy; and in the 24 to 48 hours after the postoperative period as fluid is mobilized from the extravascular space. In addition, hypertension may develop perioperatively because of discontinuation of long-term antihypertensive medication. | |||
* [[Pheochromocytoma]]: Caused by an excessive secretion of norepinephrine and epinephrine which promotes vasoconstriction. Consider this diagnosis in the patient who has a [[dilated cardiomyopathy]] (which a [[pheochromocytoma]] can cause) who still has an elevated [[blood pressure]]. This diagnosis is confirmed by demonstrating increased urinary excretion of epinephrine and norepinephrine and/or their metabolites ([[vanillylmandelic acid]]). | |||
* [[Pregnancy]] | |||
* [[Renovascular hypertension]]: Due to [[fibromuscular dysplasia]] and [[renal artery stenosis]]. In both conditions, increased blood pressure occurs due to narrowing of arteries supplying to the kidney. Decreased perfusion of renal tissue due to [[stenosis]] of a main or branch renal artery activates the [[renin-angiotensin system]]. | |||
* [[Scleroderma]] | |||
* [[White coat hypertension]] | |||
== | ==Less Common Cuases== | ||
* [[Acromegaly]] | |||
* [[Coarctation of the aorta]] | |||
* [[Hyperparathyroidism]] | |||
* [[Liquorice]] | |||
* [[Neurofibromatosis]] | |||
==Causes <ref>isbn=140510368X Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:85</ref><ref>isbn=1591032016 Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:194-195</ref>== | ==Causes <ref>isbn=140510368X Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:85</ref><ref>isbn=1591032016 Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:194-195</ref>== |
Revision as of 23:23, 3 October 2012
Hypertension Main page |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Assistant Editor-In-Chief: Taylor Palmieri
Overview
The pathophysiology of essential hypertension is incompletely understood. There are many secondary causes of hypertension.
Secondary Causes of Hypertension
Only in a small minority of patients with elevated arterial pressure, can a specific cause be identified. These individuals will probably have an endocrine or renal defect that, if corrected, could bring blood pressure back to normal values. Common causes include:
- Chronic kidney disease. Hypertension produced by diseases of the kidney. This includes diseases such as polycystic kidney disease or chronic glomerulonephritis.
- Cushing's syndrome due to an excessive secretion of glucocorticoids which in turn causes the hypertension
- Drugs:
- Nasal decongestants with adrenergic effects
- NSAIDs
- Oral contraceptives
- Steroids
- Fever
- Hyperaldosteronism (Conn's syndrome): Hypertension is a feature of a variety of adrenal cortical abnormalities. In primary aldosteronism there is a clear relationship between the aldosterone-induced sodium retention and the hypertension.
- Hyperthyroidism
- Hypothyroidism
- Obstructive sleep apnea
- Perioperative hypertension: this is the development of hypertension just before, during or after surgery. It may occur before surgery during the induction of anesthesia; intraoperatively e.g. by pain-induced sympathetic nervous system stimulation; in the early postanesthesia period, e.g. by pain-induced sympathetic stimulation, hypothermia, hypoxia, or hypervolemia from excessive intraoperative fluid therapy; and in the 24 to 48 hours after the postoperative period as fluid is mobilized from the extravascular space. In addition, hypertension may develop perioperatively because of discontinuation of long-term antihypertensive medication.
- Pheochromocytoma: Caused by an excessive secretion of norepinephrine and epinephrine which promotes vasoconstriction. Consider this diagnosis in the patient who has a dilated cardiomyopathy (which a pheochromocytoma can cause) who still has an elevated blood pressure. This diagnosis is confirmed by demonstrating increased urinary excretion of epinephrine and norepinephrine and/or their metabolites (vanillylmandelic acid).
- Pregnancy
- Renovascular hypertension: Due to fibromuscular dysplasia and renal artery stenosis. In both conditions, increased blood pressure occurs due to narrowing of arteries supplying to the kidney. Decreased perfusion of renal tissue due to stenosis of a main or branch renal artery activates the renin-angiotensin system.
- Scleroderma
- White coat hypertension
Less Common Cuases
Causes [1][2]
Common Causes
- Anxiety
- Arteriosclerosis
- Congenital adrenal hyperplasia
- Essential hypertension
- Glucocorticoids
- Glomerulonephritis
- Gestational hypertension
- Increased salt intake
- Metabolic syndrome
- Obesity
- Renal failure
- Sleep apnea
- Stress
- White coat hypertension
Causes by Organ System
Causes in Alphabetical Order