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Related Experiment Video

Updated: Dec 9, 2025

Transcutaneous Microcirculatory Imaging in Preterm Neonates
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Minimally Invasive Tissue Sampling in Preterm Deaths: A Validation Study.

Rahell Hailu1, Tigist Desta1, Yonas Bekuretsion1

  • 1Addis Ababa University, Addis Ababa, Ethiopia.

Global Pediatric Health
|September 14, 2020
PubMed
Summary
This summary is machine-generated.

Minimally invasive tissue sampling (MITS) offers a viable alternative to complete diagnostic autopsy for determining neonatal death causes in low-resource settings. This method showed good agreement with the gold standard, aiding global health initiatives.

Keywords:
EthiopiaMITSautopsynewborn mortality

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Area of Science:

  • Medical research
  • Global health
  • Pathology

Background:

  • Neonatal mortality remains a significant global health challenge, with unclear causes hindering progress.
  • Complete diagnostic autopsy (CDA) is the standard for determining cause of death but is often impractical in resource-limited areas.
  • Feasible alternatives to CDA are crucial for accurate mortality data in high-burden settings.

Purpose of the Study:

  • To evaluate the accuracy of minimally invasive tissue sampling (MITS) compared to CDA in identifying causes of death in preterm neonates.
  • To assess the feasibility and agreement of MITS with CDA in a low-income, high-mortality setting.

Main Methods:

  • A prospective, multi-center study in Ethiopia involving 105 preterm neonates.
  • Comparison of diagnoses obtained via MITS with those from complete diagnostic autopsy (CDA).
  • Assessment of MITS tissue sampling success rates for various organs (lungs, liver, kidney, brain).

Main Results:

  • MITS achieved high sampling success for lungs (100%) and liver (84%), with moderate success for kidney and brain (58% each).
  • Good agreement was found between MITS and CDA for hyaline membrane disease (kappa = 0.78).
  • Moderate to substantial agreement was observed for pneumonia (kappa = 0.59) and pulmonary hemorrhage (kappa = 0.68).

Conclusions:

  • Minimally invasive tissue sampling (MITS) demonstrates significant potential as a feasible alternative to CDA for determining causes of neonatal death in resource-limited settings.
  • MITS provides valuable diagnostic information, supporting efforts to improve neonatal mortality data and achieve global health targets.
  • Further validation and implementation of MITS can enhance cause-of-death determination in settings where traditional autopsy is challenging.