Differential Diagnosis for Buzzing Sound in Heart

• Single most likely diagnosis
  • Mitral Valve Prolapse: This condition is characterized by the prolapse of the mitral valve leaflets into the left atrium during systole, which can cause a buzzing or clicking sound. It is a common cause of heart murmurs and can be associated with a variety of symptoms, including palpitations and shortness of breath.
• Other Likely diagnoses
  • Aortic Regurgitation: This condition occurs when the aortic valve does not close properly, allowing blood to flow back into the left ventricle. It can cause a buzzing or diastolic murmur.
  • Hypertrophic Cardiomyopathy: This condition is characterized by thickening of the heart muscle, which can cause a buzzing or murmuring sound due to turbulent blood flow.
  • Atrial Septal Defect: This congenital heart defect can cause a buzzing or murmuring sound due to abnormal blood flow between the atria.
• Do Not Miss diagnoses
  • Aortic Dissection: Although rare, this condition is life-threatening and requires immediate attention. It can cause a buzzing or tearing sound in the chest due to the dissection of the aortic wall.
  • Pulmonary Embolism: This condition can cause a buzzing or murmuring sound due to the obstruction of blood flow in the lungs. It is a medical emergency that requires prompt treatment.
• Rare diagnoses
  • Cardiac Tumor: A rare condition where a tumor grows in the heart, which can cause a buzzing or murmuring sound due to abnormal blood flow.
  • Congenital Heart Defects (e.g., Ventricular Septal Defect): Although often diagnosed in childhood, some congenital heart defects may not be diagnosed until adulthood and can cause a buzzing or murmuring sound.
  • Cardiac Amyloidosis: A rare condition where abnormal proteins accumulate in the heart, causing a buzzing or murmuring sound due to restrictive cardiomyopathy.