Upper- vs Lower-Limb Systolic Blood Pressure in Full-term Normal Newborns

Reference values and associated factors for Japanese newborns’ blood pressure and pulse rate

“…The simple average SBP from these previous works was 71.3 mmHg (range: 62.6-76 mmHg) [8][9][10][11][12][13][14][15][16]. This value is almost identical to the BP level obtained in the present study (70.5 AE 7.4 mmHg).…”

“…Several studies reported that in newborns, there is no correlation [8,26] or only a weak positive correlation between SBP and birth weight [4,18,20,27,28]. In the present study, mean birth weight of newborns was 3087 AE 376 g. It has been reported that birth weight in Japanese newborns was 3076 g in boys and 2990 g in girls [29], whereas birth weight of US newborns was 3400-3500 g [30,31].…”

“…Although mean arterial BP should be also determined for analyses, we did not record mean arterial BP in the present study. At the same time, many previous studies have reported SBP and DBP values in newborns [7][8][9][10][11][12][13][14][15][16]46], and guidelines for management of hypertension in adults have made recommendations based on SBP and DBP values [47][48][49]. The present findings can be an additional source of information for the management of BP.…”

“…This value is almost identical to the BP level obtained in the present study (70.5 AE 7.4 mmHg). One of the major differences between the previous studies [8][9][10][11][12][13][14][15][16] and ours is the measurement day (1-6 vs 3 days after birth). BP in newborns increases daily during the first week of life [19][20][21], but increases most between day 2 and day 3 [20,[22][23][24].…”

“…These studies reported values in relation to race, sex, anthropometric parameters, and clinical features of newborns [8][9][10][11][12][13][14][15][16].…”