"'Noh Tae-ho's Easy-to-Understand Electrocardiogram', which was published to help readers understand electrocardiograms without memorizing them, has been published in its second edition due to overwhelming love from readers.

The first part of 'Easy to Understand Electrocardiogram', 'Understanding Cardiac Electrical Phenomena and Formation of Electrocardiogram' and the second part, 'Treatment of Arrhythmia in Various Clinical Situations', which were first published in 2013, were based on the author's lectures to Catholic University Medical School students for a long time, but additions and revisions were necessary to reflect the rapidly developing trends in medicine.
In 'Understanding Cardiac Electrical Phenomena and Formation of the Electrocardiogram', a new chapter on normal and abnormal QT interval and ST segment, which are of great clinical importance, was added along with some revisions on ventricular hypertrophy and bundle branch block.
Additionally, several changes were made to the electrocardiogram and schematic diagram to improve understanding.
In 'Treatment of Arrhythmias in Various Clinical Situations', we have tried to faithfully update various aspects of arrhythmias, especially atrial fibrillation, for which new medical discoveries are continuously being made.
Additionally, it was introduced in the treatment of various arrhythmias, reflecting the latest American Heart Association ACLS guidelines.

Since the first edition in 2013, the third series, 'Dr. Noh's Easy-to-Understand Arrhythmia', which covers arrhythmia in depth but is also understandable to the general public, has been published, and the fourth series, 'One Step Further in Electrocardiogram', which describes interesting phenomena in electrocardiograms, has been added.
I believe that going forward, through 'Noh Tae-ho's Easy-to-Understand Electrocardiogram', I will continue to provide easy explanations of difficult electrocardiograms and arrhythmias so that anyone can understand them, and this will be the way to reward my readers.