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  2. Roemheld syndrome - Wikipedia

    en.wikipedia.org/wiki/Roemheld_syndrome

    This is complemented by gastro-coronary reflexes [12] whereby the coronary arteries constrict with "functional cardiovascular symptoms" similar to chest-pain on the left side and radiation to the left shoulder, dyspnea, sweating, up to angina pectoris-like attacks with extrasystoles, drop of blood pressure, and tachycardia (high heart rate) or ...

  3. Vagal tone - Wikipedia

    en.wikipedia.org/wiki/Vagal_tone

    Increased vagal tone (and thus vagal action) is generally associated with a lower heart rate and increased heart rate variability. However, during graded orthostatic tilt , vagal tone withdrawal is an indirect indicator of cardiovascular fitness.

  4. Inappropriate sinus tachycardia - Wikipedia

    en.wikipedia.org/wiki/Inappropriate_sinus...

    The exact cause of Inappropriate sinus tachycardia is still being debated and remains unknown. Several mechanisms have been suggested, including increased sympathetic or decreased parasympathetic drive, increased intrinsic heart rate, dysfunctional neurohormonal modulation, ectopic sinus node activity, and beta-adrenergic receptor ...

  5. Fetal distress - Wikipedia

    en.wikipedia.org/wiki/Fetal_distress

    Cardiotocography is used to monitor fetal heart rate. Decreased movement felt by the mother; Meconium in the amniotic fluid ("meconium stained fluid") Non-reassuring patterns seen on cardiotocography: increased or decreased fetal heart rate (tachycardia and bradycardia), especially during and after a contraction; decreased variability in the ...

  6. What do I do if my resting heart rate is too high or low? - AOL

    www.aol.com/finance/resting-heart-rate-tell-lot...

    Meditation can help lower resting heart rate. While amping up your cardiovascular exercise routine may seem an obvious path to the long-term lowering of your resting heart rate, meditation is a ...

  7. Maternal physiological changes in pregnancy - Wikipedia

    en.wikipedia.org/wiki/Maternal_physiological...

    The increase in kidney clearance during pregnancy causes more iodide to be excreted and causes relative iodine deficiency and as a result an increase in thyroid size. Estrogen-stimulated increase in thyroid-binding globulin (TBG) leads to an increase in total thyroxine (T4), but free thyroxine (T4) and triiodothyronine (T3) remain normal. [5]