Possible Causes for left axis deviation Obesity axis deviation Flattening of the T wave (inferolateral leads) Left atrial abnormalities False positive criteria for inferior myocardial infarction Echocardiography In times [dx.doi.org] That May Occur in Obese Individuals Heart rate PR interval QRS interval or QRS voltage QT c interval QT dispersion SAECG (late potentials) ST-T abnormalities ST depression Left [dx.doi.org] Hyperkalemia Left axis deviation. Absent P waves. Example 6 Hyperkalaemia: Sine wave appearance with severe hyperkalaemia (K 9.9 mEq/L). Example 7 Hyperkalaemia: Huge peaked T waves. [lifeinthefastlane.com] Heart Failure Electrocardiography demonstrated poor R-wave progression in leads V1-V3 with right axis deviation and low voltage criteria. [ncbi.nlm.nih.gov] Echocardiography revealed diffuse left ventricular hypertrophy with normal ventricular cavity size, severe diastolic dysfunction, and sparkling and granular texture of the [ncbi.nlm.nih.gov] Morbid Obesity Morbid obesity is associated with liver pathology, most commonly non-alcoholic steatohepatitis (NASH) leading to cirrhosis. However, the morbid obesity impedes qualification for organ transplantation. We present a case report of a 56-year-old woman who underwent bariatric procedure followed by liver transplantation[…] [ncbi.nlm.nih.gov] Hypertrophic Cardiomyopathy ECG: Findings also may include right or left axis deviation, conduction abnormalities, sinus bradycardia with ectopic atrial rhythm and atrial enlargement. [patient.info] axis deviation, and deep, narrow so-called "needle-like" q waves, typically in leads I, L, V5 and V6. [radiopaedia.org] […] over 95% of cases; the most common abnormalities include high precordial QRS voltages, secondary repolarization abnormalities (ST segment depression, T wave inversion), left [radiopaedia.org] Chronic Obstructive Pulmonary Disease Spontaneous globe luxation is a rarely reported condition which can lead to complications like optic neuropathy. Common causes are thyroid eye disease, shallow orbit and floppy eyelid syndrome. We report a case of spontaneous globe luxation with the onset and severity associated with chronic obstructive pulmonary[…] [ncbi.nlm.nih.gov] Atrial Septal Defect In primum defects left axis deviation is seen in most patients with an axis of -30 degrees and very few patients have right axis deviation. [en.wikipedia.org] When an ostium primum atrial defect is present, the ECG reveals left axis deviation. [healio.com] Signs and symptoms[edit] On ECG a left axis deviation is generally found in ostium primum ASD, but an RSR pattern (M pattern) in V1 is characteristic. [en.wikipedia.org] Ostium Primum Atrial Septal Defect In primum defects left axis deviation is seen in most patients with an axis of -30 degrees and very few patients have right axis deviation. [en.wikipedia.org] In Primum defects left axis deviation is seen in most patients with an axis of -30 degrees and very few patients have right axis deviation. [ipfs.io] Each ECG showed persisting left axis deviation with no new conduction abnormalities. [circ.ahajournals.org] Aortic Valve Stenosis References:[3][8][4] Diagnostics ECG Nonspecific for AS Signs of left ventricular hypertrophy (e.g., left axis deviation, positive Sokolow-Lyon index) Chest x-ray Findings [amboss.com] deviation Left axis deviation QT Short QT syndrome T T wave alternans ST Osborn wave ST elevation ST depression Strain pattern 心肥大 Ventricular hypertrophy Left Right / Cor [zh.wikipedia.org] […] of left ventricular hypertrophy, such as left ventricular enlargement and rounded heart apex, usually only in decompensated aortic stenosis, and possibly left atrial enlargement [amboss.com] Ventricular Tachycardia They all have an RBBB shape because of an origin in the left ventricle. The most common type is shown in panel A. The frontal QRS axis shows left axis deviation. [heart.bmj.com] The QRS complexes display morphology similar to right bundle branch block and there is left axis deviation. [ecgwaves.com] Axis shift of 40 between NSR and WCT- Right superior (northwest) axis (-90 to -180 )- Left axis deviation with RBBB morphology- Right axis deviation with LBBB morphology [clinicaladvisor.com] Left Ventricular Hypertrophy Left axis deviation. [lifeinthefastlane.com] […] atrial involvement - terminal deflection of P wave in V1 is 1 box wide, and 1 box deep or more (3 points) Left axis deviation - QRS axis is -30 degrees or more negative [merckmanuals.com] Left axis deviation. ST elevation in the right precordial leads V1-3 (“discordant” to the deep S waves). Prominent U waves (proportional to increased QRS amplitude). [lifeinthefastlane.com] Aortic Valve Insufficiency deviation（英语：Right axis deviation） Left axis deviation（英语：Left axis deviation） QT（英语：QT interval） Short QT syndrome（英语：Short QT syndrome） T T wave alternans（英语：T wave alternans [zh.wikipedia.org] deviation Left axis deviation QT Short QT syndrome T T wave alternans ST Osborn wave ST elevation ST depression Strain pattern 心肥大 Ventricular hypertrophy Left Right / Cor [zh.wikipedia.org] Pulseless electrical activity（英语：Pulseless electrical activity） Sinoatrial arrest（英语：Sinoatrial arrest） 其他 / 未分类 hexaxial reference system（英语：hexaxial reference system） Right axis [zh.wikipedia.org] Left Bundle Branch Block Left bundle branch block is usually associated with normal or left axis deviation. [ncbi.nlm.nih.gov] Left bundle branch block is usually associated with normal or left axis deviation. Rarely the ECG shows a LBBB with changing QRS morphology and changing axis deviation. [ncbi.nlm.nih.gov] It has been rarely reported changing axis deviation in the presence of left bundle branch block also during atrial fibrillation and with acute myocardial infarction too. [ncbi.nlm.nih.gov] Endocardial Cushion Defect Abstract Three groups of patients are identified in the series of secumdum atrial septal defect with left axis deviation in an analysis of 910 patients of secundum atrial [ncbi.nlm.nih.gov] Left axis deviation Biventricular hypertrophy Chest X-ray Cardiomegaly with increased pulmonary vascular markings Treatment Close the atrial and/or ventricular septal defects [echocardiology.org] Complete: ostium primum atrial septal defect, canal type ventricular septal defect, common atrioventricular valve Incomplete: two separate atrioventricular valve orifices, left [echocardiology.org] Left Anterior Fascicular Block The two current criteria for diagnosis of left anterior fascicular block (LAFB) were evaluated; they are marked left axis deviation (LAD) and a delay in the time of inscription [ncbi.nlm.nih.gov] It is caused by only the anterior half of the left bundle branch being defective. It is manifested on the ECG by left axis deviation. [en.wikipedia.org] Summary Eighteen children with left-axis deviation on the electrocardiogram but no other detected abnormalities are reported. [link.springer.com] Left Ventricular Dilatation Biatrial enlargement Left ventricular hypertrophy or biventricular enlargement Left bundle branch block ( RBBB can also occur). Left axis deviation. [lifeinthefastlane.com] There are some signs of left atrial enlargement — leftward deviation of the P wave axis (positive P waves in I and aVL, inverted in III and aVF) and prolongation of the terminal [lifeinthefastlane.com] Right axis deviation suggests associated right ventricular hypertrophy (i.e. biventricular enlargement ). [lifeinthefastlane.com] Tricuspid Atresia CXR : decreased pulmonary blood flow and oligemic lung field ECG : left axis deviation PGE1 to maintain patent ductus arteriosus modified Blalock-Taussig shunt to maintain [en.wikipedia.org] Cardiomegaly and increased pulmonary vascular markings on the chest x-ray film and left axis deviation with left ventricular hypertrophy on the ECG are usually present. [ncbi.nlm.nih.gov] axis deviation due to hypoplastic right ventricle and enlarged left ventricle Pathognomic findings in setting of cyanosis: Tall p-waves (indicating atrial hyperplasia) Left [pedclerk.bsd.uchicago.edu] Congenital Aortic Valve Stenosis References: [3] [7] [4] Diagnostics ECG Nonspecific for AS Signs of left ventricular hypertrophy (e.g., left axis deviation, positive Sokolow-Lyon index ) Chest x-ray Findings [amboss.com] […] of left ventricular hypertrophy, such as left ventricular enlargement and rounded heart apex, usually only in decompensated aortic stenosis, and possibly left atrial enlargement [amboss.com] Kidney Failure Kidney perfusion can be acutely compromised by many factors including reduced systemic blood pressure and elevated intra-abdominal pressure. We present a case of near complete absence of kidney perfusion in a 57-year-old man with heart failure and new onset ascites. The renal perfusion defect was directly[…] [ncbi.nlm.nih.gov] Amyloidosis Systemic light chain amyloidosis (AL) is a life-threatening disease caused by aggregation and deposition of monoclonal immunoglobulin light chains (LC) in target organs. Severity of heart involvement is the most important factor determining prognosis. Here, we report the 4.0 Å resolution cryo-electron microscopy map[…] [ncbi.nlm.nih.gov] Anomalies of Coronary Artery Origin His electrocardiogram revealed normal sinus rhythm at a rate of 80 beats/min, left axis deviation, left atrial abnormality, and T-wave inversion in lead V 6. [read.nxtbook.com] Left Ventricular Outflow Obstruction ECG: Findings also may include right or left axis deviation, conduction abnormalities, sinus bradycardia with ectopic atrial rhythm and atrial enlargement. [patient.info] […] ventricular systolic impulse ( Table ). 10 The ECG may demonstrate evidence of left ventricular hypertrophy and QRS left axis deviation that is indistinguishable from the [circ.ahajournals.org] […] stenosis and are usually evidenced on physical examination by a harsh late-peaking systolic murmur, delayed and diminished peripheral pulses, and a displaced and sustained left [circ.ahajournals.org] Atrioventricular Septal Defect In primum defects left axis deviation is seen in most patients with an axis of -30 degrees and very few patients have right axis deviation. [en.wikipedia.org] When an ostium primum atrial defect is present, the ECG reveals left axis deviation. [healio.com] This valvular deformity resulted in a high pitched blowing systolic murmur, audible over the apical and lower left sternal areas, and left axis deviation and indications of [circ.ahajournals.org] Bifascicular Block […] with right bundle-branch block and left axis deviation (56% or 55/98). [ncbi.nlm.nih.gov] Wide complex tachycardia with RBBB morphology in lead V1 and left axis deviation. [ecgmedicaltraining.com] deviation Left axis deviation QT Short QT syndrome T T wave alternans ST Osborn wave ST elevation ST depression Strain pattern Cardiomegaly Ventricular hypertrophy Left Right [en.wikipedia.org] Lenegre Disease axis deviation ( left anterior fascicular block) First degree AV block Example 2 Incomplete Trifascicular Block: Right bundle branch block Left axis deviation ( left anterior [lifeinthefastlane.com] axis deviation o The right ventricle depolarizes first, and this eliminates the normal septal Q waves in the lateral leads INCOMPLETE Left Bundle Branch Block - Normal QRS [derangedphysiology.com] Case 5 Answer Rate -about 40 Rhythm - second degree block type 2 Intervals - prolonged qrs in V2 consistent with right bundle branch block Axis - left axis deviation from [inside.fammed.wisc.edu] Left Posterior Fascicular Block Abstract Verapamil-sensitive, idiopathic left ventricular tachycardia (ILVT) with right bundle branch block configuration and left-axis deviation is known to be due to re-entry [doi.org] Verapamil-sensitive, idiopathic left ventricular tachycardia (ILVT) with right bundle branch block configuration and left-axis deviation is known to be due to re-entry mechanism [ncbi.nlm.nih.gov] The electrical axis will be shifted to the left (left axis deviation), ranging between -45 and -90 . [ecgwaves.com] Right Bundle Branch Block LV) anterior wall thinning, n 3), and RBBB LAFB (RBBB with left axis deviation without LV anterior wall thinning n 2). [ncbi.nlm.nih.gov] Left bundle branch block is usually associated with normal or left axis deviation. [ncbi.nlm.nih.gov] […] with right axis deviation. [jadweb.org] Ostium Secundum Atrial Septal Defect The 12-lead ECG will show an incomplete right bundle branch block with right axis deviation (in contrast to the priumum ASD which has a left axis deviation). [healio.com] Individuals with a sinus venosus ASD exhibit a left axis deviation of the P wave (not the QRS complex). [marmur.com] Sinus venosus ASD - Individuals with a sinus venosus ASD exhibit a left axis deviation of the P wave (not the QRS complex). [wikidoc.org] Supraventricular Tachycardia with Aberrant Conduction The cardinal features of fascicular VT are a right bundle branch block pattern with left axis deviation and a QRS duration of 0.11 0.14 seconds. [rcemlearning.co.uk] There is also extreme left axis deviation with small r-waves in inferior leads followed by a large S-wave, and a small q-wave in aVL with a large R-wave; this is a left anterior [epmonthly.com] […] aberrancy will produce either a right or left axis deviation. [emsworld.com] Biventricular Hypertrophy Atrial Enlargement in V1 3 points Left axis deviation 2 points QRS duration 0.09 sec 1 point Delayed intrinsicoid deflection in V5 or V6 ( 0.05 sec) 1 point CORNELL Voltage [ecg.utah.edu] Left axis deviation. [litfl.com] anterior fascicle resulting in left-anterior hemi-block and thus results in left axis deviation. [yourarticlelibrary.com]
