Cardiology

Stressful life events tied to heart disease in older black women

Stressful life events were linked to higher incidents of heart attack, stroke and other types of cardiovascular disease in black women, according to new research that also looked at whether a person's resilience could help ...

Cardiology

New heart failure device is approved

(HealthDay)—The Optimizer Smart System has been approved by the U.S. Food and Drug Administration for people with chronic, moderate-to-severe heart failure who are not candidates for other heart failure remedies.

Medications

How new ketamine drug helps with depression

On March 5, the Food and Drug Administration (FDA) approved the first truly new medication for major depression in decades. The drug is a nasal spray called esketamine, derived from ketamine—an anesthetic that has made ...

Medical research

Algae could prevent limb amputation

A new algae-based treatment could reduce the need for amputation in people with critical limb ischaemia, according to new research funded by the British Heart Foundation, published today in the journal npj Regenerative Medicine.

Diseases, Conditions, Syndromes

Peptide shows promise for protecting kidneys from nephritis

A synthetic peptide appears to directly disrupt the destructive inflammation that occurs in nephritis, enabling the kidneys to better recover and maintain their important functions, investigators report.

Pediatrics

Screen time plus snacking a risk for metabolic disorder in teens

Teens who sit for hours watching TV, using the computer or playing video games while eating unhealthy snacks are at increased risk for a group of risk factors for heart disease and diabetes, according to research to be presented ...

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Hypertension (HTN) or high blood pressure, sometimes arterial hypertension, is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels. Blood pressure involves two measurements, systolic and diastolic, which depend on whether the heart muscle is contracting (systole) or relaxed (diastole) between beats. Normal blood pressure is at or below 120/80 mmHg. High blood pressure is said to be present if it is persistently at or above 140/90 mmHg.

Hypertension is classified as either primary (essential) hypertension or secondary hypertension; about 90–95% of cases are categorized as "primary hypertension" which means high blood pressure with no obvious underlying medical cause. The remaining 5–10% of cases (secondary hypertension) are caused by other conditions that affect the kidneys, arteries, heart or endocrine system.

Hypertension is a major risk factor for stroke, myocardial infarction (heart attacks), heart failure, aneurysms of the arteries (e.g. aortic aneurysm), peripheral arterial disease and is a cause of chronic kidney disease. Even moderate elevation of arterial blood pressure is associated with a shortened life expectancy. Dietary and lifestyle changes can improve blood pressure control and decrease the risk of associated health complications, although drug treatment is often necessary in patients for whom lifestyle changes prove ineffective or insufficient.

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