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Adult and Pediatric Porcine Model of Acute Volume Overload

Adult and Pediatric Porcine Model of Acute Volume Overload

Published on: January 12, 2024

Fluid overload deteriorate chylothorax: evaluation in a canine model.

M Honda¹, Y Hori, Y Shionoya

¹Department of Bioartificial Organs, Institute for Frontier Medical Science, Kyoto University, Kyoto, Japan. mhonda@frontier.kyoto-u.ac.jp

Diseases of the Esophagus : Official Journal of the International Society for Diseases of the Esophagus

|September 3, 2011

Summary

Managing chylothorax requires careful attention to fluid balance. This study found that increased intravenous fluid infusion significantly elevates lymph fluid leakage, highlighting the importance of avoiding fluid overload in chylothorax treatment.

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Area of Science:

Veterinary Medicine
Surgical Research
Physiology

Background:

Established conservative treatments for chylothorax are lacking.
Surgical intervention, specifically thoracic duct ligation, is often necessary.
Understanding body fluid management is crucial for chylothorax cases.

Purpose of the Study:

To investigate body fluid management strategies in a canine model of chylothorax.
To determine the impact of varying intravenous fluid infusion rates on lymph fluid leakage.

Main Methods:

A canine chylothorax model was created by surgically incising the thoracic duct.
Twelve beagle dogs were divided into three groups (A, B, C) with differential intravenous fluid infusion rates.
Lymph fluid leakage was measured over a 4-hour period under general anesthesia.

Main Results:

Initial lymph fluid leakage rates (0-2 hours) showed no significant difference between groups.
Between 2 and 4 hours, groups A (10 mL/kg/h) and B (20 mL/kg/h) exhibited significantly higher leakage rates compared to group C (5 mL/kg/h).
Lymph fluid accumulation in the thoracic duct correlated directly with the volume of intravenous fluid administered.

Conclusions:

Intravenous fluid administration significantly influences lymph fluid leakage in a chylothorax model.
Avoiding fluid overload is a critical consideration for managing canine chylothorax.
Further research into optimal fluid management protocols for chylothorax is warranted.