Dr Muhammad Touqeer Qasim, Dr Muhammad Zaeem, Dr Roba Asif
Aim: Diagnostic cardiac catheterization in Tetralogy of Fallot (TOF) is widely used in our country. Aim of this study was to compare results and complications of prograde/antegrade and retrograde approach in diagnostic catheterizations of TOF. Methodology: This prospective comparative study was conducted at the cardiology department of Mayo Hospital Lahore for one-year duration from April 2019 to April 2020. 269 consecutive patients who underwent diagnostic cardiac catheterization for TOF were included and divided in three groups. Group A: Prograde study planned, Group B: both venous and arterial accesses were electively obtained at the start and group C, where retrograde study was planned. Group A & C were subdivided: Group Aa, study completed in prograde manner and group Ab where arterial line was subsequently placed for completion of study. Group Ca, study completed in retrograde approach and group Cb where venous line was subsequently placed. Data analysis was computer based using SPSS 17 version. Results: A total of 269 patients with an average age of 7.7 years, including 169 men. Group A included 200 cases (Aa 129 and Ab 71), group B: 45 cases and group C contains 24 cases (Ca18 and Cb 6). Systemic complications included 9 episodes hyper-cyanotic spells (Gp Aa 3, Ab 4, B2), transient arrhythmias (Aa 1, 2 Ab, 2B) and transient cardiac arrest (GP B). Group percentage of local vessels complication in group B as 22.2%, group C 12.5%, group Ab 8.4% and no in group Aa. Conclusion: Prograde cardiac catheterization is safe and preferred for TOF. Keywords: congenital heart disease, TOFF, cardiac catheterization.