A sudden emotional shock. A devastating loss. Severe physical stress. An unexpected illness. A frightening emergency. In some patients, these experiences do more than affect the mind—they temporarily stun the heart. Broken Heart Syndrome, medically known as Takotsubo cardiomyopathy, is one of the most fascinating and clinically important conditions in modern cardiology. It can mimic acute myocardial infarction, produce dramatic ECG changes, elevate cardiac biomarkers, cause acute heart failure, trigger arrhythmias, and even lead to cardiogenic shock. Yet, in many cases, the coronary arteries may show no obstructive culprit lesion.

Broken Heart Syndrome: The Science of Takotsubo Cardiomyopathy is written as a comprehensive, practical, and scientifically grounded guide for cardiologists, physicians, emergency doctors, intensivists, postgraduate trainees, nurses, medical students, and all clinicians who encounter patients with acute chest pain, unexplained cardiac dysfunction, or stress-related cardiovascular collapse.

Takotsubo cardiomyopathy challenges traditional thinking. It reminds us that the heart is not only a pump, and cardiovascular disease is not always caused by plaque rupture, thrombosis, or chronic risk factors. The nervous system, endocrine stress response, catecholamine surge, microvascular dysfunction, myocardial stunning, inflammation, and emotional trauma can all converge to create a dramatic cardiac syndrome. This book explores these mechanisms in a clear, clinically relevant manner, connecting pathophysiology with bedside diagnosis and management.

The clinical presentation of Takotsubo cardiomyopathy may resemble ST-elevation myocardial infarction, non-ST-elevation acute coronary syndrome, myocarditis, coronary spasm, embolic infarction, spontaneous coronary artery dissection, or MINOCA. For this reason, accurate differential diagnosis is essential. This book guides the reader through the diagnostic pathway using clinical history, ECG interpretation, cardiac biomarkers, echocardiography, coronary angiography, left ventriculography, cardiac MRI, CT when needed, and follow-up imaging.

Special attention is given to high-risk presentations, including severe left ventricular systolic dysfunction, left ventricular outflow tract obstruction, mitral regurgitation, right ventricular involvement, ventricular arrhythmias, thrombus formation, stroke risk, cardiogenic shock, pulmonary edema, and recurrence. The book also discusses practical treatment strategies, including supportive care, heart failure therapy, anticoagulation when indicated, beta-blockers, ACE inhibitors or ARBs, careful management of shock, avoidance of inappropriate therapies in selected haemodynamic patterns, and long-term surveillance.

Beyond the acute episode, Takotsubo cardiomyopathy opens important questions about mind-heart interaction, emotional stress, neurological triggers, psychiatric association, endocrine disorders, gender differences, postmenopausal vulnerability, critical illness, cancer, surgery, sepsis, and intensive care stress. This book highlights these associations in a clinically useful way so that readers can identify patients at risk and understand the broader systemic context.

This Kindle edition is designed for rapid reading, academic revision, bedside reference, teaching sessions, and board preparation. It explains the science while remaining practical for everyday clinical use. Readers will learn how to suspect Takotsubo cardiomyopathy, distinguish it from myocardial infarction and myocarditis, recognize dangerous complications, select appropriate investigations, initiate safe treatment, and plan follow-up.

Written by Dr A M Thirugnanam, Senior Interventional Cardiologist, this book reflects a modern interventional and clinical cardiology perspective. It combines acute cardiac care, imaging, haemodynamic reasoning, emotional medicine, and evidence-based management into a single focused reference.

Broken Heart Syndrome is not only a poetic phrase; it is a real cardiovascular condition that can appear suddenly, mimic catastrophe, and recover remarkably when recognized and managed correctly. This book is created to help clinicians understand the hidden science behind stress-induced cardiomyopathy and to approach every suspected case with clarity, caution, and confidence.