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  2. Electrocardiography - Wikipedia

    en.wikipedia.org/wiki/Electrocardiography

    Use of real time monitoring of the heart in an intensive care unit in a German hospital (2015), the monitoring screen above the patient displaying an electrocardiogram and various values of parameters of the heart like heart rate and blood pressure. Electrocardiography is the process of producing an electrocardiogram (ECG or EKG[a]), a ...

  3. Electrocardiography in myocardial infarction - Wikipedia

    en.wikipedia.org/wiki/Electrocardiography_in...

    For leads V2-V3: ≥2 mm in men ≥40 years, ≥2.5 mm in men <40 years, or ≥1.5 mm in women regardless of age. This assumes usual calibration of 1mV/10mm. [5] These elevations must be present in anatomically contiguous leads. [4] (I, aVL, V5, V6 correspond to the lateral wall; V3-V4 correspond to the anterior wall ; V1-V2 correspond to the ...

  4. Right bundle branch block - Wikipedia

    en.wikipedia.org/wiki/Right_bundle_branch_block

    An incomplete right bundle branch block (IRBBB) is a conduction abnormality in the right bundle branch block. While a complete RBBB has a QRS duration of 120 ms or more, an incomplete RBBB has a wave duration between 100 and 120 ms. It has a relatively high prevalence, a study conducted on young Swiss military conscripts with a mean age of 19 ...

  5. Left axis deviation - Wikipedia

    en.wikipedia.org/wiki/Left_axis_deviation

    Mechanical shifts that cause LAD are expiration or raised diaphragm from pregnancy, ascites (fluid accumulation in the abdomen), abdominal tumor, or enlarged liver or spleen. [2] Left axis deviation is a border deviation in athletes , which, if it is combined with another borderline feature such as right bundle branch block, requires further ...

  6. Einthoven's triangle - Wikipedia

    en.wikipedia.org/wiki/Einthoven's_triangle

    Einthoven's triangle. Einthoven's triangle is an imaginary formation of three limb leads in a triangle used in the electrocardiography, formed by the two shoulders and the pubis. [1] The shape forms an inverted equilateral triangle with the heart at the center. It is named after Willem Einthoven, who theorized its existence.

  7. Tetralogy of Fallot - Wikipedia

    en.wikipedia.org/wiki/Tetralogy_of_Fallot

    Tetralogy of Fallot (TOF), formerly known as Steno-Fallot tetralogy, [9] is a congenital heart defect characterized by four specific cardiac defects. [4] Classically, the four defects are: [4] pulmonary stenosis, which is narrowing of the exit from the right ventricle; a ventricular septal defect, which is a hole allowing blood to flow between ...

  8. Intraventricular block - Wikipedia

    en.wikipedia.org/wiki/Intraventricular_block

    Intraventricular block. ECG characteristics of an intraventricular block subtype - RBBB showing wide QRS complexes with a terminal R wave in lead V1 and a prolonged S wave in lead V6. An intraventricular block is a heart conduction disorder — heart block of the ventricles of the heart. [1] An example is a right bundle branch block, right ...

  9. Atrial flutter - Wikipedia

    en.wikipedia.org/wiki/Atrial_flutter

    Atrial flutter with a two to one block. Note the P waves hiding in the T waves in leads V1 and V2. Type I atrial flutter, also known as common atrial flutter or typical atrial flutter, has an atrial rate of 240 to 340 beats/minute. However, this rate may be slowed by antiarrhythmic agents. [citation needed]