We do have to maintain the normal sinus rhythm (NSR), if it is possible or there are some correctable causes. The reason for this may come from the NSR would result in better cardiac filling in the diastolic phase when the heart rate is low, however, when your patient become tachycardic from any cause, the systolic time which is normally fixed and cannot be reduced, the diastolic period will definitely be reduced, then your patient will have shorter time for the heart to relax and result in lower cardiac output due primarily to small stoke volume.
This is also applied to the abnormal atrial contraction rhythm which the normal atrial kick would increase the significant amount of cardiac filling volume, Look at the lower part of the figure: you can learn that in this patient although the heart rate is quite low, Premature Atrial Contraction can cause an absent of adequate output in each abnormal beat on the arterial tracing waveform, We cannot the low blood pressure in the screen, but we can see the obvious lower cardiac output.
This is also applied to the abnormal atrial contraction rhythm which the normal atrial kick would increase the significant amount of cardiac filling volume, Look at the lower part of the figure: you can learn that in this patient although the heart rate is quite low, Premature Atrial Contraction can cause an absent of adequate output in each abnormal beat on the arterial tracing waveform, We cannot the low blood pressure in the screen, but we can see the obvious lower cardiac output.
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