Papers and articles measurement of central venous pressure in horses.

This research study conducted central venous pressure measurements on 74 healthy horses and ponies. The results indicated a significant correlation with body weight, but no correlation with other factors like age, sex, breed, or type. The measurements altered depending on the animal’s position during anaesthesia and suggested that serial measurements would be more valuable than single determinations for evaluating an animal’s circulatory condition.

Objective of the Study

• The study aimed to measure the central venous pressure in horses and ponies that showed no clinical symptoms of cardiopulmonary disease.
• The goal was to understand the relationship between central venous pressure and factors like body weight, age, sex, breed, and body position during anaesthesia.

Methodology

• The researchers utilized the sternal manubrium as the zero reference point while measuring the central venous pressure in 74 horses and ponies.
• Different body positions of animals during anaesthesia, such as right lateral recumbency, left lateral recumbency, and supine, were taken into consideration during measurements.

Key Findings

• The mean value of central venous pressure obtained from the subjects was found to be 12 cm H2O.
• A significant correlation was found between the central venous pressure and the body weight of the horses and ponies, with an ‘r’ value of 0.6 at a significance level p less than 0.001.
• No correlation was found between the central venous pressure and factors like the age, sex, breed, or type of horses and ponies.
• In the case of anaesthetized animals, the mean central venous pressure value varied with the position of the animals: 24.5 cm H2O in right lateral recumbency, 29 cm H2O in left lateral recumbency, and -6 cm H20 in the supine position.

Conclusions

• The use of the sternal manubrium as a zero reference point didn’t provide comparable values for standing and recumbent animals, indicating that the body position significantly impacts the central venous pressure.
• The study concluded that serial measurements of central venous pressure, which involve taking several measurements over a period of time, provide a more reliable and informative assessment of an animal’s circulatory condition as compared to isolated or single determinations.