Physiologic and pharmacologic factors that affect myocardial relaxation

Leticia Vittone, Cecilia Mundina-Weilenmann, Alicia Mattiazzi, Horacio Cingolani

Research output: Contribution to journalReview articlepeer-review

25 Scopus citations


Evaluation of the myocardial relaxation has become important in the last years. An impaired relaxation may precede contractile dysfunctions and even cause heart failure. To treat this impaired lusitropism it is necessary to properly assess the lusitropic state of the heart and understand how drugs affect the cellular mechanisms underlying myocardial relaxation (sarcoplasmic reticulum function, Ca2+ fluxes through the sarcolemma and myofilament Ca2+ sensitivity). Current information regarding these issues is provided in this review. The relative usefulness of the mechanical parameters used to evaluate the lusitropic state of the heart in experimental models applied in pharmacology will also be discussed.

Original languageEnglish (US)
Pages (from-to)7-18
Number of pages12
JournalJournal of Pharmacological and Toxicological Methods
Issue number1
StatePublished - Sep 1994


  • Lusitropism
  • cellular mechanisms of lusitropic drugs
  • diastolic function
  • relaxation parameters

ASJC Scopus subject areas

  • Toxicology
  • Pharmacology


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