Haemodynamics in the horse: 3. Duration of the phases of the cardiac cycle.

This research article primarily focuses on the duration of different phases of the cardiac cycle in horses, utilizing a bipole ECG record for measuring pressure changes in the heart chambers and large vessels.

Objective

The research aims to understand the duration and sequence of mechanical events during the cardiac cycle in the atria and ventricles of horses, using measurements from a bipole ECG record.

Research Methodology

• The study was conducted by weighing the timing of pressure changes in the chambers of the heart and in the great vessels.
• The timing of these changes were recorded and measured through a bipole ECG, an electrocardiographic method which evaluates the electrical activity of the heart.

Key Findings

• The study produced observations on the duration of various phased of the cardiac cycle, relying heavily on the ECG record for its data gathering.
• The results of this research laid out a probable sequence of mechanical events during a horse’s cardiac cycle, with particular emphasis on the activities in the atria and ventricles.

Significance

• This research allowed us to delve deeper into understanding the mechanism and timing involved during the cardiac cycle of horses.
• By analysing and interpreting the relevant data, the researchers were able to postulate the sequence of mechanical events occurring in the heart’s atria and ventricles during the cardiac cycle.
• The findings provide useful insight for further studies related to cardiac physiology of horses, and holds potential applications in veterinary medical practices to better diagnose and treat cardiac conditions in horses.