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79 Possible Causes for Elevated PR Interval

  • Acute Atrial Infarction

    PR-segment elevation in inferior leads could also be detected.[eplabdigest.com] Finally SR took over again in the ninth and tenth beat with the same P wave morphology, PR interval and P-P interval as the previous sinus beats.[eplabdigest.com] Note that although it showed SR with constant PR interval, there were slight variations in the P-P interval among each pair of beats.[eplabdigest.com]

  • Pericarditis

    There may also be PR interval depression – and if both of these are present it is pretty much diagnostic for pericarditis Later there may also be T wave inversion – especially[almostadoctor.co.uk] The PR interval (short arrow) is depressed because of inflammatory changes involving the atrial wall. B. Acute myocardial infarction.[aafp.org] The electrocardiographic abnormalities 22,23 have 4 stages: 24 1st-PR interval depression and diffuse concave upward ST elevation of ST segment except aVR; 2 nd normalization[scielo.org.mx]

  • Acute Pericarditis

    There may also be PR interval depression – and if both of these are present it is pretty much diagnostic for pericarditis Later there may also be T wave inversion – especially[almostadoctor.co.uk] Diffuse PR segment depression can also occur (read differences between Intervals and Segments ).[en.my-ekg.com] […] cycle The rubs are typically heard best with the diaphragm at the left lower sternal edge at full expiration Investigations ECG – this will show widespread saddle shaped ST elevation[almostadoctor.co.uk]

  • Streptococcal Infection

    The minor criteria include arthralgia, fever, elevated erythrocyte sedimentation rate, elevated C-reactive protein, or a prolonged PR interval [ 1 ].[casesjournal.biomedcentral.com]

  • Hyperkalemia

    interval AV block sine wave ventricular fibrillation asystole However, the sensitivity of ECG changes is low, and severe elevation can be accompanied by a normal ECG.[sharinginhealth.ca] […] paralysis hypoventilation ECG Changes ECG findings can include: peaked, narrow T waves widened QRS, and eventual merging with T wave flattened or lost P waves prolonged PR[sharinginhealth.ca]

  • Posterior Myocardial Infarction

    […] and PR segment depression.[ahcmedia.com] However, a variety of other ECG changes also can occur, including T wave inversions, ST segment depression, prolonged QT interval, bundle branch blocks, and even Q-waves.[ahcmedia.com] […] systemic thrombolytics has been documented in large series to occur in about 1% of cases. 47 The well-known ECG changes seen in pericarditis are those of diffuse ST segment elevation[ahcmedia.com]

  • Anterior Myocardial Infarction

    At the fourth day, while ST elevations returned to baseline, short PR interval and delta waves were observed on the ECG.[ncbi.nlm.nih.gov] His electrocardiogram showed ST elevation in the precordial leads (V1-V6). This condition was erroneously interpreted as an acute myocardial infarction.[ncbi.nlm.nih.gov]

  • Tumor Lysis Syndrome

    Severe potassium elevation can cause electrocardiographic alterations such as peaked T waves, flattened P waves, prolonged PR interval, widened QRS complexes, deep S wave,[emedicine.com]

  • Bradycardia

    […] block, minor QT prolongation (QTi 112%), short PR interval, left axis deviation, right axis deviation, frequent ventricular premature beats, and other minor arrhythmias.[jamanetwork.com] Minor ECG abnormalities included minor isolated Q/-QS waves, minor isolated ST/-T abnormalities, high R waves, ST segment elevation; incomplete (left and right) bundle branch[jamanetwork.com]

  • Recurrent Pulmonary Embolism

    interval 0.24 sec), an incomplete right bundle branch block and non-specific ST-segment abnormalities: 1 mm ST elevations in DI, DII and aVL. ( Fig. 1 ) The chest radiography[tmj.ro] The electrocardiogram on admission showed a regular sinus rhythm with a ventricular rate of 90 beats per minute, a QRS axis at 70o, a 1 st degree atrioventricular block (PR[tmj.ro]

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