Heart rate and increased intravascular volume
| Authors | |
|---|---|
| Year of publication | 2003 |
| Type | Article in Periodical |
| Magazine / Source | Physiol. Research |
| MU Faculty or unit | |
| Citation | |
| Field | Cardiovascular diseases incl. cardiosurgery |
| Keywords | kidneys; heart rate; atrial mechanisms; intravascular volume; breathing |
| Description | The objective was to establish whether an intravascular volume increase leads to a heart rate (HR) incerase without increased sympahetic tonus. HR changes at rest and at deep breathing (6/min - simulated increase of atrial filling pressure) were measured in patients after heart transplantation. Evaluation of dependency of HR changes on breathing depth was done through a new time series methodology. The data was evaluated through graphs displaying a significant increase in the graph area at deep breathing, when compared with breathing at rest (p<0.01). We presume that an incease in HR corresponds to increased intravascular volume and malfunctioning kidneys. |
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