Table 3.

Investigations and evaluations done locally to help in teleconsultation for CHD care

Investigations	Utility
Weight	Optimization of medications according to weight
Oxygen saturation	Distinguish cyanotic CHD with increased pulmonary blood flow, from cyanotic CHD; assess worsening hemodynamics and need of intervention in TOF physiology
Blood pressure	To assess optimal hypertension control following relief of aortic obstruction in children with coarctation of aorta and aortoarteritis
Hemoglobin	Decide blood transfusion in patients with heart failure and cyanotic spells
ASLO, CRP, ESR	To assess recurrence of acute rheumatic fever in children with RHD
CRP, ESR	To assess recurrence of disease activity in patients with Takayasu arteritis
PT/INR	Optimisation of anticoagulation in patients with prosthetic heart valve implantation
ECG	For rhythm assessment in patients with pacemaker implantation

ASLO Antistreptolysin O; CHD Congenital heart disease; CRP C-reactive protein; ECG Electrocardiogram; ESR Erythrocyte sedimentation rate; PT/INR Prothrombin time/ International normalised ratio; RHD Rheumatic heart disease; TOF Tetralogy of Fallot