Obesity-related cardiorenal syndrome

Ryan Nelson1, Illena Antonetti, John D Bisognano

  • 1Cardiology Division, Department of Medicine, University of Rochester Medical Center, Rochester, NY 14642, USA.

Insights

Obesity cardiomyopathy can progress to severe cardiorenal syndrome under stress, causing pulmonary hypertension and kidney failure in obese patients. This study explores the end stages of this cardiovascular pathology.

Area of Science:

  • Cardiology
  • Nephrology
  • Pulmonology

Background:

  • Obesity cardiomyopathy, characterized by left ventricular hypertrophy and diastolic dysfunction, is linked to right ventricular issues.
  • The late stages of obesity cardiomyopathy, particularly cardiorenal syndrome, remain poorly understood.
  • Obstructive sleep apnea is frequently observed in obese patients with cardiovascular complications.

Purpose of the Study:

  • To investigate the end-stage manifestations of obesity-related cardiovascular disease.
  • To describe the progression to cardiorenal syndrome in obese patients experiencing physiologic stress.
  • To highlight the spectrum of cardiovascular pathology in obesity, including pulmonary hypertension and diastolic dysfunction.

Main Methods:

  • Retrospective study of edematous obese patients with comorbidities.
  • Analysis of clinical presentation during physiologic stress or infection.
  • Evaluation of cardiorenal parameters, including pulmonary hypertension and renal function.

Main Results:

  • Obese patients under severe stress developed pulmonary hypertension and right-sided volume overload.
  • Decreased effective arterial blood volume and renal failure were observed.
  • Findings were often associated with obstructive sleep apnea, indicating a cardiorenal syndrome.

Conclusions:

  • Obesity cardiomyopathy can advance to a critical cardiorenal syndrome.
  • Physiologic stress exacerbates cardiovascular and renal dysfunction in obese individuals.
  • A broad spectrum of cardiovascular issues, including pulmonary hypertension and sleep apnea, are prevalent in obesity.

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