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35 Possible Causes for Accentuated S1

  • Chronic Bronchitis

    On this page See, Play and Learn No links available Summary Bronchitis is an inflammation of the bronchial tubes, the airways that carry air to your lungs. It causes a cough that often brings up mucus. It can also cause shortness of breath, wheezing, a low fever, and chest tightness. There are two main types of[…][]

  • Sinus Tachycardia

    Sinus tachycardia is characterized by an accelerated heartbeat and occurs in virtually all age categories. It is often determined by scheduled reviews of adolescents and even young children. What is a dangerous sinus tachycardia and what does modern medicine offer for the treatment of the disease? Sinus[…][]

  • Mitral Valve Stenosis

    S1 Accentuation or Delay S1 is normally caused by closure of the mitral valve and is often accentuated or delayed in the context of mitral stenosis.[] Auscultation of heart sounds will reveal a loud, accentuated S1 early in mitral stenosis and soft S1 in severe mitral stenosis (see Heart Sounds Topic Review ).[] However, S1 accentuation and delay tend to become mild or disappear all together in late stages of the disease.[]

  • Thyrotoxic Heart Disease

    A 29-year-old woman at 34 weeks' gestation with uncontrolled hyperthyroidism and thyrotoxic heart disease was admitted to urgency Cesarean section. After preoperative sedation and good communication, low-dose spinal anesthesia (7.5 mg 0.5 % bupivacaine) combined with epidural anesthesia (6 ml 2 % lidocaine) was[…][]

  • Lown-Ganong-Levine Syndrome

    The syndrome described by Lown, Ganong, and Levine in 1952 associated the occurrence of tachycardia with presence of a short PR interval and normal QRS. Subsequent investigations have failed to identify a unifying anatomic or functional basis that accounts for both occurrence of tachycardia and presence of a[…][]

  • Wolff-Parkinson-White Syndrome

    Young age and inducibility of atrioventricular reciprocating tachycardia or atrial fibrillation during invasive electrophysiological testing identify asymptomatic patients with a Wolff-Parkinson-White pattern on the electrocardiogram as being at high risk for arrhythmic events. We tested the hypothesis that[…][]

  • Atrial Myxoma

    Note loud S1 and S2. Additional late systolic sound is also present. This patient had severe pulmonary hypertension; that is why S2 was accentuated.[] Right Atrial Myxomas Right atrial myxomas are associated with a loud, early systolic, widely split S1 due to expression of the tumour from the right ventricle.[] A pulmonary ejection murmur with a delayed and accentuated pulmonic second sound may be heard. There may also be an early, late or prolonged diastolic murmur heard.[]

  • Tricuspid Stenosis

    The present report is the first to describe a case of hemoptysis caused by an endocardial pacemaker lead. In addition, the patient presented with endocarditis and tricuspid valve stenosis. Aggressive treatment consisted of surgical extraction of two pacemaker leads and one pacemaker battery, replacement of the[…][]

  • Mitral Valve Insufficiency

    Auscultation of heart sounds will reveal a loud, accentuated S1 early in mitral stenosis and soft S1 in severe mitral stenosis (see Heart Sounds Topic Review ).[] When pulmonary hypertension develops, the P2 component of the S2 heart sound will be accentuated.[] […] the mitral valve leaflets become significantly more calcified, their mobility declines and they are unable to be separated a great deal, resulting in a soft or even absent S1[]

  • Aortic Valve Stenosis

    Diminished or absent A2: The presence of a normal or accentuated A2 speaks against the existence of severe aortic stenosis Paradoxical splitting of the S2: Resulting from[] […] presence of left ventricular systolic dysfunction Hyperdynamic left ventricle: Unusual; suggests concomitant aortic regurgitation or mitral regurgitation Soft or normal S1[]

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