Straight back syndrome is associated with?: (A) Mitral valve Prolapse, (B) Ankylosing spondylitis, (C) Osteopetrosis, (D) Cor-triatriatum
Answer is A. Straight back syndrome: Loss of thoracic kyphosis (antero-posterior diameter of chest is relatively lesser), so place available for hea is also less. Hea is sandwiched b/w thoracic veebrae, sternum and rib cage. Causes Mitral valve Prolapse =>Mid Systolic click Ankylosing spondylitis - AR condition