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Low pressure during pregnancy - how to deal with it?

Low pressure during pregnancy - how to deal with it?


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Most pregnant women can associate the time of pregnancy with hypertension (this problem affects 5-6% of women expecting a child). In fact, however, the physiological phenomenon for this period of a woman's life is a decrease in pressure. Is it dangerous for a pregnant woman and her unborn baby? What are the symptoms of low pressure during pregnancy and does it require treatment? About this in today's article.

Why is a decrease in blood pressure observed in pregnancy?

The physiological drop in blood pressure observed in pregnant women begins around the 8th week of pregnancy and continues uninterrupted until about the 20th week of pregnancy. First of all, the diastolic and mean pressure values ​​are reduced. Maximum by 16-20 mmHg. Systolic values ​​only change slightly. It is worth noting that in the perinatal period an increase in pressure is observed to those before pregnancy (the norm is 120/80 mmHg).

The mechanism of pressure drop in pregnant women still not fully explained. It is believed that it is mainly conditioned numerous hormonal changes taking place in the body of a woman expecting a child. Among other things, the increase in progesterone concentration, which has vasodilator effects, is important. They are also important states of dehydration, prolonged standing or lying on your back (especially in the second half of pregnancy). They predispose to further pressure drop and may be responsible for the onset of symptoms hypotension (hypotension is diagnosed when the pressure drops below 100/60 mmHg).

What are the symptoms of low pressure during pregnancy?

Low pressure usually found in pregnant women is not particularly dangerous, but it can cause a number of symptoms. Among them, it is worth mentioning, among others:

  • Dizziness. They usually disappear spontaneously and are a mild expression of reduced blood flow through the brain.
    Dark spots before the eyes and tinnitus - just like dizziness - are an expression of a decrease in cerebral perfusion.
  • Feeling tired, lack of energy and drowsiness. They may result from stress and overloading the body, but also be the result of too low blood pressure.
  • fainting - they are defined as loss of consciousness, which is characterized by short duration and spontaneous and full recovery of consciousness. In some cases, fainting may lead to fatal injuries directly threatening the life of the pregnant woman and her unborn baby. All injuries to the head and stomach area are particularly dangerous.

Most of the above-mentioned symptoms are transient, and their appearance is most often associated with sudden uprightness (sudden uprightness combined with low pressure significantly reduces the amount of blood delivered to the brain).

Low pressure during pregnancy - should they be treated?

Low blood pressure during pregnancy is physiology and does not usually require pharmacological treatment. However, it is worth remembering to follow a few rules that can reduce the severity of its symptoms. Here they are:

  • Caring for good hydration. Pregnant should take every day minimum 2 liters of water. This amount should be higher in the summer months, during sports and when a woman is feverish.
  • Avoiding prolonged standing and upright standing. These situations favor the onset of hypotensive symptoms.
  • Avoiding sleeping and lying on your back. It will be best to lay on your left side (this improves the return of blood from the lower body).
  • The introduction of moderate physical exertion. Moderate effort, if not contraindicated, can effectively increase pressure and significantly improve the well-being of a pregnant woman.

Low pregnancy pressure and coffee

There are no explicit studies that would fully confirm the safety of drinking coffee during pregnancy. Hence, the best solution is to refrain from consuming it or possibly significantly reducing it. A maximum of one cup of coffee per day is allowed. What is noteworthy, all kinds of energy drinks, or tablets containing caffeine, guarana are prohibited during pregnancy.

Low pressure occurs in varying degrees in most pregnant women and is a fully physiological phenomenon. However, it should be remembered that to some extent, one can naturally control its negative consequences.

Bibliography:Obstetrics and gynecology by Grzegorz H. Bręborowicz.Internal Szczeklik 2017/18.