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33 Possible Causes for Flattened T Wave, Third Degree Atrioventricular Block

  • Electrolyte Imbalance

    Clinical signs of hyperkalaemia include muscle weakness, hypotension , bradycardia and loss of cardiac output, and ECG changes may include peaked T waves and flattened P waves[ausmed.com] Occasionally sinoatrial (SA) block, second- or third-degree atrioventricular (AV) block may develop.[ecgwaves.com] Magnesium Hypermagnesaemia is rare but severe hypermagnesaemia may cause atrioventricular and intraventricular conduction disturbances, which may culminate in third-degree[ecgwaves.com]

  • Digoxin

    , inverted, or biphasic T waves .[lifeinthefastlane.com] degree atrioventricular block unless a functioning pacemaker is present.[doi.org] . - Flattened, negative or biphasic T waves. - QT interval shortening. - U wave amplitude may increase.[metealpaslan.com]

  • Lithium Toxicity

    Cardiovascular side effects are usually mild and manifest as nonspecific ECG changes, such as ST-T flattening and T-wave inversion.[calpoison.org] The most common electrocardiographic finding is T-wave flattening.[emedicine.medscape.com]

  • Digitalis Toxicity

    Electrocardiographic signs of digitalis toxicity include first-degree atrioventricular (A-V) block with depressed S-T segments, shortened Q-T intervals, and flattened T waves[medical-dictionary.thefreedictionary.com]

  • Quinidine

    T waves (without dysrhythmia), have occurred frequently and hypotension and ventricular tachycardia have occurred occasionally in patients receiving IV quinidine gluconate[drugs.com] […] measures may be required. b While substantial cardiovascular toxicity generally has not occurred, ECG changes, including prolonged QT interval, widened QRS complex, and flattened[drugs.com]

  • Digitalis

    Abstract A 19-year-old female was admitted to our department because of a hypertrophic palmaris digitalis II of the left hand displaying color changes. A thrill was easily palpated over the medial part of the finger. A review of her history revealed that this hypertrophy occurred after a blunt trauma to the left[…][ncbi.nlm.nih.gov]

  • Lenegre Disease

    ST-segment, T-waves, and QT interval ST-segment depression or T-wave flattening or inversion in two or more leads; prolongation of heart rate corrected QT interval (QTc) 0.44[en.ecgpedia.org] Block-Mobitz Type I]]) Second Degree Atrioventricular Block-Mobitz Type II Third Degree Atrioventricular Block (Third Degree Heart Block, Complete Heart Block) (see Third[mdnxs.com] Atrioventricular Block Third-Degree Heart Block[thoracickey.com]

  • Atrial Septal Defect

    waves" describes biphasic morphology, initial T wave flattening or inversion and sharp, positive upstroke to terminal positive deflection 10 peak of the T wave delayed when[radiopaedia.org] A new third degree atrioventricular block occurred in 1 patient who recovered 1 week later.[ncbi.nlm.nih.gov] (RBBB morphology with QRS duration between 110-120 ms) increased specificity with crochetage sign in the inferior (II, III, aVF) leads right precordial (V1-3) "defective T[radiopaedia.org]

  • Cardiac Glycoside Plant Poisoning

    ECG often reveals an increased PR interval, a decreased QT interval, and T wave flattening or inversion.[roaic.eg.net] […] and anorexia Blurry vision with a yellow tint a nd halos, disorienta tion, weakness Diagnostics : ECG : potentially severe cardiac arrhythmias Premature ventricular beats T-wave[amboss.com] […] inversion or flattening Downsloping ST segment depression (“scooped” ST segments) QT interval PR interval Atrial tachycardia with AV block Laboratory studies Serum digoxin[amboss.com]

  • Ostium Primum Atrial Septal Defect

    waves" describes biphasic morphology, initial T wave flattening or inversion and sharp, positive upstroke to terminal positive deflection 10 peak of the T wave delayed when[radiopaedia.org] (RBBB morphology with QRS duration between 110-120 ms) increased specificity with crochetage sign in the inferior (II, III, aVF) leads right precordial (V1-3) "defective T[radiopaedia.org]

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