Sökning: "Electrocardiography"

Visar resultat 21 - 25 av 50 avhandlingar innehållade ordet Electrocardiography.

  1. 21. Advanced electrocardiography in myocardial electrical remodeling : insights from cardiovascular magnetic resonance imaging

    Författare :Maren Maanja; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The electrocardiogram (ECG) is a common diagnostic tool in cardiology thanks to its high accessibility and low cost. However, in several cardiovascular diagnoses, including left ventricular hypertrophy (LVH), current conventional ECG measures and criteria have a poor diagnostic performance. LÄS MER

  3. 22. Cardiac muscle injury in children and experimental animals. Reflections in ECG, especially high-resolution electrocardiography

    Författare :Rolf Bennhagen; Lund Pediatrik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pediatrics; Kardiovaskulära systemet; Cardiovascular system; signal-averaging ECG; ischaemia; cardiac transplantation; Pediatri;

    Sammanfattning : Background and Methods: Signal-averaging ECG (SAECG), a bioelectrical processing method, is a further development of the conventional ECG. SAECG can detect voltage potentials in the microvolt range and provide a noise-reduced determination of QRS duration. Extended frequency spectra can be analysed. LÄS MER

  4. 23. Ventricular Depolarization in Ischemic Heart Disease.Value of Electrocardiography in Assessment of Severity and Extent of Acute Myocardial Ischemia

    Författare :Michael Ringborn; Kardiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Acute myocardial ischemia; Acute myocardial infarction; Severity of ischemia; QRS changes; HF-QRS; QRS slopes; Depolarization changes; Myocardium at risk; Final infarct size; SPECT.;

    Sammanfattning : Background In patients with symptoms compatible with acute myocardial infarction (MI), early triage by ECG in the pre-hospital phase by ST-segment elevation myocardial infarction (STEMI) criteria is important for direct transport of these patients to a regional center for primary percutaneous coronary intervention (pPCI). The time from first medical contact to pPCI should, due to present guidelines, be no longer than two hours. LÄS MER

  5. 24. Computerized vectorcardiography for on-line cardiac monitoring in non-cardiac surgery

    Författare :Per Gannedahl; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Anesthesia electrocardiography intraoperative monitonng laparoscopy myocardial ischemia vascularsurgery vectorcardiography. Stockholm 1997;

    Sammanfattning : Perioperative cardiac morbidity (PCM) remains high in risk groups such as peripheral vascular surgery. Preoperative assessment has not succeeded in identifying the individual patients most susceptible of PCM. Computerized vectorcardiography (VCG), a novel continuous on-line method for ischaemia monitoring was evaluated for perioperative use. LÄS MER

  7. 25. Blood pressure, blood pressure variability and myocardial ischemia : studies in patients with peripheral arterial disease and matched control subjects

    Författare :Per Svensson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Peripheral vascular diseases; hypertension drug therapy; ambulatory blood pressure monitoring; coronary artery disease; ambulatory electrocardiography; SPECT; NT-proBNP;

    Sammanfattning : Background: Patients presenting with peripheral arterial disease (PAD) often have concomitant coronary artery disease (CAD), which is frequently asymptomatic. Ambulatory blood pressure (ABP) monitoring improves risk stratification in hypertensive patients beyond that offered by office BP(OBP) measurements. LÄS MER