Mj. Malkowski et al., IS THE PULMONARY VENOUS-TRANSMITRAL A-WAVE DURATION DIFFERENCE ALTERED BY AGE AND HYPERTENSION, The American journal of cardiology, 76(10), 1995, pp. 722
We have demonstrated that the pulmonary venous and transmitral atrial
duration, and the difference between the 2, are independent of age and
not influenced by hypertension, but have a high interobserver variabi
lity and range of variability. These technical limitations indicate th
at caution must be exercised when utlizing these parameters for the as
sessment of diastolic filling.