One is said to have a Low blood pressure or Hypotension when his blood pressure is <90/60 mm Hg. An optimal blood pressure of 110/70 mm Hg is a sign of good cardiovascular (heart and blood vessel) health. Healthy people, like trained athletes usually have a lower blood pressure and lower pulse rate than the unfit ones. A low blood pressure may however be a sign of an underlying problem, especially in the elderly, and lead to inadequate blood supply to the heart, brain or other vital organs.
Chronic low blood pressure without symptoms is not serious in most instances. However a sudden drop may cause health problems as the brain gets deprived of sufficient blood supply. Light-headedness or dizziness ensues a fall of 20 mm Hg.
It is noted that many Indian woman suffer from low blood pressure and also low hemoglobin. However there are no large studies from the sub-continent to study this association. Low blood pressure is also seen in the elderly people and sometimes is due to medication.
Lightheadedness, dizziness or fainting episodes are the main symptoms of the condition.
Certain lifestyle modification can prevent low blood pressure from causing any major health problems; Increasing salt in diet may also help its treatment.
Types of low blood pressure or HypotensionHypotension
is often categorised based on numerous factors. Some common types are:
Postural hypotension, postprandial hypotension, Neurally Mediated Hypotension (NMH).
- Postural hypotension (orthostatic hypotension)
- This is a sudden drop in blood pressure on standing up. When we stand blood pools in our legs due to gravity. The body normally has mechanism to compensate for this. A failure of this compensatory mechanism leads to postural hypotension. Many of the causes that were listed in the previous section are responsible for this failure.
- It is more common in older adults, especially those above age 65
- It is generally harmless in young individuals. Young, otherwise healthy ones may suffer postural hypotension on standing up suddenly after sitting with their legs crossed for a long time or after prolonged working in a squatting position.
- Post-prandial hypotension
- This is a sudden drop in blood pressure after eating. This occurs when the body fails to compensate for the large amount of blood that deviates to the digestive tract after we eat.
- Hypertensive patients and those with nervous system disorders like Parkinsonís disease suffer postprandial hypotension
- Neurally mediated hypotension
- Young people are commonly
Latest Publications and Research on Low Blood PressureRecurrent exposure to subclinical lipopolysaccharide increases mortality and induces cardiac fibrosis in mice. - Published by PubMed
Impact of Medication Therapy Management on Underserved, Primarily Hispanic Patients with Diabetes (May). - Published by PubMed
Relationship between serum thyrotropin levels and intrarenal hemodynamic parameters in euthyroid subjects. - Published by PubMed
Transient extensive hepatic portal venous gas following hypotension in a dialysis patient. - Published by PubMed
Gitelman syndrome. - Published by PubMed