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letter
. 2022 May 31;38(4):491–553. doi: 10.1002/joa3.12717
Recommendations Consensus statement instruction Ref.
Molecular genetic testing for definitive disease associated genes (currently KCNQ1, KCNH2, SCN5A, KCNE1, and KCNE2) should be offered to all patients with acquired LQTS who experienced drug‐induced TdP, are aged below 40 years and have a QTc >440 ms (males) and >450 ms (females) in the absence of culprit drug graphic file with name JOA3-38-491-g003.jpg 20 , 94
Cascade family screening for the presence of pertinent variants should be considered when QT prolonging drugs are or could be prescribed graphic file with name JOA3-38-491-g008.jpg Expert opinion