The Complex Puzzle of Hypertrophic Phenotype: A Practical Approach for the Clinician

Alex Dos Santos Felix1,2,3,4, Silvio Henrique Barberato5,6, Marcelo Dantas Tavares de Melo7

  • 1Instituto Nacional de Cardiologia, Rio de Janeiro, RJ - Brasil.

Insights

Differentiating causes of left ventricular hypertrophy (LVH) is crucial for effective treatment. This review offers a practical approach using clinical assessment and cardiovascular imaging to diagnose diverse LVH etiologies accurately.

Area of Science:

  • Cardiology
  • Medical Diagnostics

Background:

  • Left ventricular hypertrophy (LVH) is a common clinical finding with diverse underlying causes.
  • Accurate differentiation of LVH etiologies is essential for appropriate therapeutic strategies and improved patient outcomes.
  • Misdiagnosis or delayed diagnosis can lead to disease progression, reduced functional capacity, and increased morbidity and mortality.

Purpose of the Study:

  • To provide a pragmatic methodology for discriminating among the various conditions causing LVH.
  • To highlight key diagnostic clues for clinicians managing patients with LVH.
  • To emphasize the importance of an integrative approach in evaluating patients with LVH.

Main Methods:

  • Review of clinical assessment and electrocardiographic findings in LVH diagnosis.
  • Emphasis on the role of cardiovascular multimodality imaging as a critical diagnostic tool.
  • Integration of data from various medical specialties for a comprehensive patient evaluation.

Main Results:

  • Cardiovascular multimodality imaging, combined with clinical and ECG data, is vital for solving diagnostic challenges in LVH.
  • An integrative approach involving a multidisciplinary team is recommended for optimized patient follow-up.
  • The clinician plays a central role in coordinating data for an assertive diagnosis of LVH.

Conclusions:

  • A systematic and integrative approach is necessary for accurate diagnosis and management of LVH.
  • Identifying the specific etiology of LVH guides tailored treatment, preventing adverse outcomes.
  • This review provides essential insights for clinicians to navigate the complexities of LVH diagnosis.

Related Concept Videos

Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
Cardiomyopathy V: Interprofessional Care01:29

Cardiomyopathy V: Interprofessional Care

Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
Hypertension I: Introduction01:28

Hypertension I: Introduction

Hypertension is a widespread, long-term medical condition where blood pressure in the arteries remains elevated. It is characterized by systolic blood pressure readings of 130 mm Hg or above or diastolic blood pressure (DBP) readings of 80 mm Hg or higher. Unmanaged hypertension poses significant health risks, making the distinction between primary (or essential) hypertension and secondary hypertension crucial, as their management and implications vary.Primary HypertensionPrimary hypertension,...
Hypertension II: Pathophysiology01:29

Hypertension II: Pathophysiology

Hypertension is a chronic condition in which the blood's force against artery walls is excessively high, posing risks such as heart disease. The condition's underlying mechanisms involve complex interactions among the cardiovascular, kidney, and autonomic nervous systems.Renin-Angiotensin-Aldosterone System (RAAS): This system significantly influences blood pressure regulation. When blood pressure decreases, the kidneys secrete renin. This enzyme transforms angiotensinogen, a plasma protein,...
Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

Hypertension III: Clinical Manifestations and Diagnostic Studies

Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...
Cellular Adaptation II: Hypertrophy01:26

Cellular Adaptation II: Hypertrophy

Hypertrophy is the increase in the size of individual cells, resulting in the enlargement of a tissue or organ. Unlike hyperplasia, which involves an increase in cell number, hypertrophy is characterized by an increase in cell volume. This process often occurs in response to higher functional demand or hormonal stimulation, leading to the production of more structural proteins and organelles, thereby enhancing the cells' work capacity.There are two primary types of hypertrophy: physiological...