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Timing of regional ...
Timing of regional left ventricular lengthening by pulsed tissue Doppler
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Guron, Cecilia Wallentin, 1965 (author)
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- Hartford, Marianne, 1944 (author)
- Gothenburg University,Göteborgs universitet,Hjärt-kärlinstitutionen,Cardiovascular Institute
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- Persson, Anita, 1971 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för fysiologi och farmakologi,Institute of Physiology and Pharmacology
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- Herlitz, Johan, 1949 (author)
- Gothenburg University,Göteborgs universitet,Hjärt-kärlinstitutionen,Cardiovascular Institute,[external]
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- Thelle, Dag, 1942 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för invärtesmedicin, Avdelningen för internmedicin,Institute of Internal Medicine, Dept of Medicine
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- Caidahl, Kenneth, 1949 (author)
- Karolinska Institutet,Gothenburg University,Göteborgs universitet,Hjärt-kärlinstitutionen,Cardiovascular Institute
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(creator_code:org_t)
- Elsevier BV, 2004
- 2004
- English.
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In: J Am Soc Echocardiogr. - : Elsevier BV. - 0894-7317 .- 1097-6795. ; 17:4, s. 307-12
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Abstract
Subject headings
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- Pulsed tissue Doppler can measure myocardial velocities with high temporal resolution. Our aim was to determine the onset timing of the regional left ventricular longitudinal early lengthening (e) in relation to the mitral inflow (E) in acute coronary syndromes. We applied pulsed tissue Doppler to the septal, lateral, inferior, and anterior left ventricular basal walls of 160 patients with acute coronary syndromes and 60 control subjects. Maximum systolic and early diastolic velocities were lower for patient than for control walls (6.1 +/- 1.7 vs 7.9 +/- 1.4 cm/s, P <.0001, and 6.9 +/- 2.3 vs 10.0 +/- 2.3 cm/s, P <.0001, respectively) and e started later than E (12 +/- 30 vs 2 +/- 19 milliseconds later, P <.0001). All 3 variables related to the degree of visual left ventricular wall pathology. The intraindividual time range for all 4 e starts was wider for patients (43 +/- 27 vs 30 +/- 18 milliseconds, P <.0001). Our results show that pulsed tissue Doppler can identify a delayed and asynchronous initial wall lengthening in acute coronary syndromes.
Keyword
- Acute Disease
- Adult
- Aged
- Blood Flow Velocity/physiology
- Coronary Circulation/physiology
- Coronary Disease/epidemiology/physiopathology/ultrasonography
- *Echocardiography
- Doppler
- Pulsed
- Female
- Heart Ventricles/physiopathology/ultrasonography
- Humans
- Male
- Middle Aged
- Myocardial Contraction/physiology
- Myocardial Infarction/epidemiology/physiopathology/ultrasonography
- Observer Variation
- Stroke Volume/physiology
- Sweden/epidemiology
- Syndrome
- Time Factors
Publication and Content Type
- ref (subject category)
- art (subject category)
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