Referring to the time when the heart is in a period of relaxation and dilatation (expansion). The noun for diastolic is diastole. (The final letter in "diastole" is pronounced as a long "e" as in "lee.") The diastolic pressure is specifically the minimum arterial pressure during relaxation and dilatation of the ventricles of the heart when the ventricles fill with blood. In a blood pressure reading, the diastolic pressure is typically the second number recorded. For example, with a blood pressure of 120/80 ("120 over 80"), the diastolic pressure is 80. By "80" is meant 80 mm Hg (millimeters of mercury). A diastolic murmur is a heart murmur heard during diastole, the time the heart relaxes. "Diastolic" came from the Greek diastole meaning "a drawing apart." The term has been in use since the 16th century to denote the period of relaxation of the heart muscle.
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Relating to diastole.

Medical dictionary. 2011.

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  • diastolic — DIASTÓLIC, Ă, diastolici, ce, adj. Care se referă la diastolă, care aparţine diastolei; care are loc în timpul diastolei. [pr.: di as ] – Din fr. diastolique. Trimis de IoanSoleriu, 17.07.2004. Sursa: DEX 98  diastólic adj. m. (sil. di a ; mf.… …   Dicționar Român

  • Diastolic — Di as*tol ic, a. (Physiol.) Of or pertaining to diastole. [1913 Webster] …   The Collaborative International Dictionary of English

  • diastolic — diastole ► NOUN ▪ the phase of the heartbeat when the heart muscle relaxes and the chambers fill with blood. Often contrasted with SYSTOLE(Cf. ↑systolic). DERIVATIVES diastolic adjective. ORIGIN Greek, separation, expansion …   English terms dictionary

  • Diastolic heart failure — Diastolic dysfunction Classification and external resources ICD 9 428.3 Diastolic heart failure or diastolic dysfunction refers to decline in performance of one or both ventricles of the heart during the time phase of diastole. Diastole is that… …   Wikipedia

  • Diastolic dysfunction — refers to an abnormality in the heart s (i.e. left ventricle s) filling during diastole. Diastole is that phase of the cardiac cycle when the heart (i.e. ventricle) is not contracting but is actually relaxed and filling with blood that is being… …   Wikipedia

  • diastolic blood pressure — n the lowest arterial blood pressure of a cardiac cycle occurring during diastole of the heart called also diastolic pressure compare SYSTOLIC blood PRESSURE …   Medical dictionary

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  • diastolic pressure — see blood pressure * * * diastolic blood pressure see blood p …   Medical dictionary

  • diastolic heart failure — heart failure due to a defect in ventricular filling caused by an abnormality in diastolic function …   Medical dictionary

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