Possible Causes for Left Axis Deviation in USA

• Atrial Septal Defect
  Left Axis Deviation

  In ostium primum ASD, it shows left axis deviation and right bundle branch block. […] In sinus venosus ASD, it shows left axis deviation and a negative P wave in lead III.^[1]

• Left Anterior Fascicular Block
  Right Axis Deviation Left Axis Deviation

  axis deviation. […] The major clinical signs which indicate the occurrence of LAFB include: Left axis deviation under -60° Small Q, in leads I and aVL, and R waves in lead aVF, II, III (with […] These criteria are summed up as follows: Left axis deviation, which normally ranges between -45 and -90 degrees QRS duration appears normal or a little bit longer than normal^[2]

• Left Ventricular Hypertrophy
  Left Axis Deviation

  axis deviation and left ventricular strain and left atrial enlargement.  […] men) and 20 mm (women) Sokolow Lyon voltage: S in V1 and R in V5 or V6 = or > 35 mm R in AVL = or > to 11 mm There may be repolarization changes such as QRS prolongation, left^[3]

• Morbid Obesity
  Left Axis Deviation

  Morbid obesity or clinically severe obesity is a condition characterized by body mass index (BMI) over 40 kg/m2, and involves serious health consequences. Morbid obesity is associated with a number of comorbidities that enhance the risk of mortality. Weight problems with symptoms of associated complications are the…^[4]

• Chronic Obstructive Pulmonary Disease
  Right Axis Deviation Left Axis Deviation

  Symptoms and signs may include: Fatigue Dyspnea  Paroxysmal nocturnal dyspnea (PND) Chest tightness Wheezing Cough with sputum (mucoid and/or purulent) Fever Chest pain Workup consists of a detailed history, tests and physical examination. Laboratory Tests Complete blood count Arterial blood gases Serum…^[5]

• Left Ventricular Outflow Obstruction
  Left Axis Deviation
• Hypertrophic Cardiomyopathy
  Left Axis Deviation

  Hypertrophic cardiomyopathy (HCM) is a genetic disorder characterized by left ventricular hypertrophy without an identifiable cause. Most patients have little or no disability and a normal life expectancy. Higher rates of morbidity or mortality are linked to the complications of the disorder, sudden cardiac death,…^[6]

• Congenital Aortic Valve Stenosis
  Left Axis Deviation

  Congenital aortic valve stenosis is the inborn obstruction of blood flow through the aortic valve, most often associated with abnormal valve morphology: aortic bicuspid or unicuspid valve. It can be associated with other cardiac malformations and the condition, in the majority of cases, becomes symptomatic sooner or…^[7]

• Endocardial Cushion Defect
  Right Axis Deviation Left Axis Deviation

  An endocardial cushion defect, also known as the atrioventricular septal defect, encompasses several congenital heart disease forms of abnormal atrioventricular septation and formation of a single atrioventricular valve. Cyanosis is principally seen in milder forms, whereas congestive heart failure and even death may…^[8]

• Ostium Primum Atrial Septal Defect
  Right Axis Deviation Left Axis Deviation

  The ostium primum atrial septal defect consists of the absence of the interatrial septum in the atrioventricular canal portion, which causes interatrial left to right shunting. The malformation may occur by itself or in association with an inlet ventricular septal defect, as part of an atrioventricular septal defect.…^[9]

Further symptoms

• Acyanotic Congenital Heart Disease
• Anomalous Pulmonary Venous Connection
• Apical Impulse Displaced
• Apical Thrust
• Artrioventricular Canal Defect
• Atrial Fibrillation
• Atrial Flutter
• Biventricular Hypertrophy
• Cardiac Catheterization Abnormal
• Cardiac Catheterization showing Right to Left Shunt
• Cardiac Catheterization showing Shunts
• Cardiac Signs and Symptoms
• Cardiomegaly
• Chest X-Ray Abnormal
• Chronic Fatigue Syndrome
• Complete Blood Count Abnormal
• Congestive Heart Failure
• Cor Pulmonale
• Decreased Expiratory Reserve Volume
• Decreased Vocal Fremitus
• Digitalis Toxicity
• Down Syndrome
• Dyspnea
• Echocardiogram Abnormal
• Eisenmenger Syndrome
• Electrocardiogram Change
• Exertional Cough
• Facial Redness
• Fatigue
• Gallop Rhythm
• Heart Disease
• Heart Murmur
• Hypoxia
• Impaired Exercise Tolerance
• Incomplete Right Bundle Branch Block
• Left Anterior Fascicular Block
• Left Bundle Branch Block
• Left Ventricular Hypertrophy
• Left Ventricular Hypertrophy in ECG
• Mitral Valve Prolapse Syndrome
• P Pulmonale
• PO2 Decreased
• Prolonged PR Interval
• Pulmonary Arterial Pressure Increased
• Pulmonary Hypertension
• Recurrent Bronchitis
• Right Atrial Hypertrophy
• Right Bundle Branch Block
• Right Ventricular Hypertrophy
• S4 Gallop
• Secondary Pulmonary Hypertension
• Staphylococcus Aureus Infection
• Subacute Bacterial Endocarditis
• Syncope
• Systolic Murmur
• Third Degree Atrioventricular Block
• Ventricular Septal Defect
• X-Ray Abnormal

References

1. Atrial Septal Defect, Symptoma
2. Left Anterior Fascicular Block, Symptoma
3. Left Ventricular Hypertrophy, Symptoma
4. Morbid Obesity, Symptoma
5. Chronic Obstructive Pulmonary Disease, Symptoma
6. Hypertrophic Cardiomyopathy, Symptoma
7. Congenital Aortic Valve Stenosis, Symptoma
8. Endocardial Cushion Defect, Symptoma
9. Ostium Primum Atrial Septal Defect, Symptoma