Pulmonary hypertension

Definition: systolic PAP >35 mmHg or mean PAP >25 mmHg, clinically if systolic PAP:systolic BP <0.5 WHO Classification I. Pulmonary arterial hypertension I.1 Idiopathic I.2 Familial I.3 Associated with collagen vascular disease, portal hypertension, HIV, drugs & toxins, congenital systemic-pulmonary shunts, others I.4 Persistent PHT in the Newborn I.5 Pulmonary veno-occlusive disease II. Pulmonary hypertension w/…

Pacing

NBG Code I II III IV V Paced Sensed Mode Modulation Multi-site 0-none 0-none 0-none 0 -none A-Atrium A-Atrium T-triggered R-rate modulated A-Atrium V-Ventricle V-Ventricle I-inhibited D-dual D-dual D-dual   Modes of Pacing Description Indication Limitation AOO asynchronous atrial Bradycardia w/ intact AV, poor atrial sensing vulnerable Phase → AF VOO asynchronous ventricular Bradycardia w/…

Blalock-Taussig Shunt

Blalock-Taussig Shunt

Definition: Modified Blalock-Taussig shunt: Gortex graft from subclavian or innominate artery to the ipsilateral PA to augment PBF. Blalock-Taussig shunt: direct anastomosis between the transected subclavian artery (or the innominate artery) and the pulmonary artery.

Glenn Shunt

Glenn Shunt

Definition: transection of the SVC, which is anastomosed to the right pulmonary artery (RPA). Hemi-fontan: confluence of SVC and RA anastomosed to RPA. Redirection of IVC and coronary sinus via baffle through ASD into LA.