Adapted changes in left ventricular structure and function in severe uncomplicated obesity

Gianluca Iacobellis, Maria Cristina Ribaudo, Alessandra Zappaterreno, Concetta Valeria Iannucci, Umberto Di Mario, Frida Leonetti

Research output: Contribution to journalArticle

62 Scopus citations

Abstract

Objective: A massive amount of fat tissue, as that observed in obese subjects with BMI over 50 kg/m2, could affect cardiac morphology and performance, but few data on this issue are available. We sought to evaluate cardiac structure and function in uncomplicated severely obese subjects. Research Methods and Procedures: We studied 55 uncomplicated severely obese patients, 40 women, 15 men, mean age 35.5 ± 10.2 years, BMI 51.2 ± 8.8 kg/m2, range 43 to 81 kg/m2, with a history of fat excess of at least 10 years, and 55 age-matched normal-weight subjects (40 women, 15 men, mean BMI 23.8 ± 1.2 kg/m2) as a control group. Each subject underwent an echocardiogram to evaluate left ventricular (LV) mass and geometry and systolic and diastolic function. Results: Severely obese subjects showed greater LV mass and indexed LV mass than normal-weight subjects (p < 0.01 for all parameters). Nevertheless, LV mass was appropriate for sex, height2.7, and stroke work in most (77%) uncomplicated severely obese subjects. In addition, no significant difference in LV mass indices and LV mass appropriateness between obese subjects with BMI ≥ 50 kg/m2 and those with BMI ≤ 50 kg/m2 was found. Obese subjects also showed higher ejection fraction and midwall shortening than normal-weight subjects (p = 0.05 and p < 0.01, respectively), suggesting a hyperdynamic systolic function. No significant difference in systolic performance between obese subjects with BMI ≥ 50 kg/m2 and those with BMI ≤ 50 kg/m2 was seen. Discussion: Our data show that uncomplicated severe obesity, despite the massive fat tissue amount, is associated largely with adapted and appropriate changes in cardiac structure and function.

Original languageEnglish (US)
Pages (from-to)1616-1621
Number of pages6
JournalObesity Research
Volume12
Issue number10
DOIs
StatePublished - Jan 1 2004

Keywords

  • Echocardiography
  • Left ventricular geometry
  • Left ventricular hypertrophy
  • Severe obesity
  • Uncomplicated obesity

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Public Health, Environmental and Occupational Health
  • Endocrinology
  • Food Science
  • Endocrinology, Diabetes and Metabolism

Fingerprint Dive into the research topics of 'Adapted changes in left ventricular structure and function in severe uncomplicated obesity'. Together they form a unique fingerprint.

  • Cite this

    Iacobellis, G., Ribaudo, M. C., Zappaterreno, A., Iannucci, C. V., Di Mario, U., & Leonetti, F. (2004). Adapted changes in left ventricular structure and function in severe uncomplicated obesity. Obesity Research, 12(10), 1616-1621. https://doi.org/10.1038/oby.2004.201