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Related Experiment Videos

[Maprotiline and the heart rate].

P Filaković1, J Barkić, N Mandić

  • 1Psihijatrijske klinike Medicinskog fakulteta Sveucilista u Zagrebu u Općoj bolnici u Osijeku.

Acta Medica Iugoslavica
|January 1, 1990
PubMed
Summary
This summary is machine-generated.

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Maprotiline increases heart rate in depressed patients, likely due to its noradrenergic activity. This effect, a common antidepressant side-effect, emerges after an average 8-day delay and is linked to synaptic changes.

Area of Science:

  • Pharmacology
  • Cardiovascular Physiology
  • Neuroscience

Context:

  • Antidepressants can cause increased heart rate, a side effect with debated mechanisms.
  • Maprotiline's specific influence on heart rate and its underlying pathophysiology require further investigation.

Purpose:

  • To investigate the effect of Maprotiline on heart rate in patients with depressive involutional syndrome.
  • To compare observed effects with existing literature on Maprotiline's cardiovascular side effects.

Summary:

  • Twenty-one patients receiving 150 mg daily Maprotiline showed an average 16 bpm increase in resting heart rate after an 8-day delay.
  • Orthostatic heart rate deviation remained stable, but prolonged blood pressure return was noted post-Schellong's test.
  • Increased heart rate is attributed to Maprotiline's noradrenergic activity, blocking norepinephrine reuptake, potentially indicating synaptic pathology.

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Impact:

  • Findings support Maprotiline's noradrenergic mechanism for heart rate elevation.
  • The delayed onset of heart rate increase and blood pressure changes may correlate with synaptic alterations.
  • This research contributes to understanding antidepressant side effects and their relationship to neurotransmitter systems.