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Estimation of normal heart weight in Japanese subjects: development of a simplified normal heart weight scale

M Hitosugi1, A Takatsu, Y Kinugasa

  • 1Department of Forensic Medicine, Jikei University School of Medicine, Tokyo 105-8461, Japan.

Legal Medicine (Tokyo, Japan)
|August 26, 2003
PubMed

Insights

This study establishes normal heart weight (HW) standards for Japanese individuals using body height and weight. A simplified scale was developed for practical estimation of normal heart weight during routine autopsies.

Area of Science:

  • Forensic Medicine
  • Cardiology
  • Anthropometry

Background:

  • Estimating cardiac workload requires established standards for normal heart weight (HW).
  • Previous research lacks specific HW standards for Japanese populations.

Purpose of the Study:

  • To establish normal heart weight standards for Japanese subjects.
  • To develop a simplified method for calculating normal heart weight from body height (BH) and body weight (BW).

Main Methods:

  • Analysis of heart weight, body height, and body weight from 830 Japanese individuals who died suddenly.
  • Calculation of body surface area (BSA) using Takahira's equation.
  • Determination of allometric relationships between HW and BSA for males and females.

Main Results:

  • Established allometric equations for heart weight based on body surface area: HW=BSA(1.441) x 168.200 for males and HW=BSA(1.367) x 161.970 for females.
  • Developed a simplified scale for quick estimation of normal heart weight from body height and body weight.
  • Demonstrated the practical applicability of the simplified scale in routine autopsy settings.

Conclusions:

  • The developed standards and simplified scale provide a practical tool for estimating normal heart weight in forensic and clinical practice.
  • This method aids in assessing cardiac workload and identifying potential cardiac abnormalities in Japanese populations.
  • The study contributes to establishing anthropometric reference data for cardiovascular assessment.

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