Бөмбөрийн дохиурын шинж нь...
If a patient with a patent ductus arteriosus (PDA) develops Eisenmenger's syndrome there will be arteriovenous mixing causing deoxygenated blood. Crucially this affects the lower limbs exclusively as the PDA connects pulmonary artery to aortic arch distal to the left subclavian artery. Hence as the lower limbs experience more hypoxaemia, they ...