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23 Possible Causes for Accentuated S1

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  • 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.[] However, S1 accentuation and delay tend to become mild or disappear all together in late stages of the disease.[]

  • 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.[]

  • Chronic Bronchitis

    Abstract A 49-year-old woman complained of cough and a purulent sputum (about 40 ml/day). She kept budgerigars for a period of 30 years, she first noticed a productive cough 10 years previously. Her chest roentgenogram revealed a diffuse reticulonodular pattern. She was diagnosed as having a chronic type of[…][]

  • Thyrotoxic Heart Disease

    J Anesth. 2016 Aug;30(4):731-4. doi: 10.1007/s00540-016-2186-1. Epub 2016 May 23. Author information 1 Department of Anesthesiology, West China Second Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China. 2 Key Laboratory of Obstetric Gynecologic and Pediatric Diseases and Birth Defects,[…][]

  • Lown-Ganong-Levine Syndrome

    Abstract BACKGROUND Lown-Ganong-Levine syndrome, includes a short PR interval, normal QRS complex, and paroxysmal tachycardia. The pathophysiology of this syndrome includes an accessory pathway connecting the atria and the atrioventricular (AV) node (James fiber), or between the atria and the His bundle[…][]

  • Wolff-Parkinson-White Syndrome

    Am J Emerg Med. 2008 Oct;26(8):968.e5-7. doi: 10.1016/j.ajem.2008.02.012. Author information 1 Department of Pediatrics, Tri-Service General Hospital, Taipei Veterans General Hospital, Neihu 114, Taipei, Taiwan. [email protected] Abstract Chest pain is not an uncommon complaint among adolescents; however, it often[…][]

  • Tricuspid Valve Stenosis

    Abstract This three-part article examines the histologic and morphologic basis for stenotic and purely regurgitant tricuspid valves. In Part I, conditions producing tricuspid valve stenosis are reviewed. In over 90% of stenotic tricuspid valves, the etiology is rheumatic disease. In isolated tricuspid stenosis, the[…][]

  • Sinus Tachycardia

    Abstract A 25-year-old woman with daily episodes of syncope and several related traumatic injuries was referred for electrophysiological study. Structural heart disease was excluded. Electrophysiological study revealed inappropriate sinus tachycardia with heart rates up to 190 beats/min. A sinus node modulation was[…][]

  • Congenital Mitral 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.[] Cardiac auscultation: Heart sounds • The S1 is accentuated because of a wide closing excursion of the mitral leaflets. • The degree of loudness of the S1 depends on the pliability[] Examination Inspection • Engorged vein in neck Palpation: • Tapping apex beat • Palpable S1 • Parasternal heave • Palpable S2 • Diastolic thrill Auscultation: • S1 is short[]

  • Tricuspid Atresia

    The first heart sound (S1)is single and may be accentuated. The 2nd heart sound (S2) is usually single.[] , accentuated -often Single S2 -Holosyst murmur if Q thru VSD or ejection murmur if RVOT -w incr Qp, can hear S3 or middiast rumble at apex -hepatomegaly, esp if restricted[] […] surgery) -dTGA -- Sx of pulm overcirc; hard to DDx (by exam) fr Type I if large VSD -Nl size newborn -LV impulse more prominent than RV - thrill if restrictive VSD -Single S1[]

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