Aortic Blood Pressure in the Normal Newborn: Hazards of the Umbilical Artery Catheter

PEDIATRICS ◽  
1970 ◽  
Vol 45 (5) ◽  
pp. 893-893
Author(s):  
Frederick P. Anderson
Keyword(s):  
Blood Pressure ◽  
Umbilical Artery ◽  
Newborn Infants ◽  
Labor And Delivery ◽  
Premature Labor ◽  
Aortic Blood ◽  
Arterial Catheterization ◽  
Aortic Blood Pressure ◽  
Prolonged Labor

Although the authors of the study, "Aortic blood pressure in normal newborn infants during the first 12 hours of life" were sufficiently pleased with their results to recommend "that the aortic blood pressure be measured routinely in all infants who are apt to develop cardiopulmonary insufficiency and have indwelling umbilical arterial catheters," I feel obliged to raise two questions relative to its appropriateness and validity. I am not aware that either premature labor and delivery (10 patients) , Premature twinnmg (2 patients), sibling with fatal RDS (3 patients) , or prolonged labor (2 patients) in and of itself constituted an indication for the employment of umbilical arterial catheterization.

AORTIC BLOOD PRESSURE IN NORMAL NEWBORN INFANTS DURING THE FIRST 12 HOURS OF LIFE

PEDIATRICS ◽  
1969 ◽  
Vol 44 (6) ◽  
pp. 959-968
Author(s):  
Joseph A. Kitterman ◽  
Roderic H. Phibbs ◽  
William H. Tooley
Keyword(s):  
Blood Pressure ◽  
Birth Weight ◽  
Gestational Age ◽  
Newborn Infants ◽  
Arterial Blood ◽  
Aortic Blood ◽  
Normal Mean ◽  
Aortic Blood Pressure ◽  
Direct Arterial Blood Pressure ◽  
The Relationship

Indwelling umbilical arterial catheters were used without difficulty to measure direct arterial blood pressure in newborn infants. Normal values were determined for mean aortic blood pressure during the first 12 hours of life in 45 infants who were expected, from history, to be subject to cardiopulmonary insufficiency at birth but who, after birth, were judged to be clinically well. Birth weights of these infants ranged from 1,050 to 4,220 gm, and gestational age ranged from 26 to 41 weeks. All infants were of appropriate weight for gestational age. Mean blood pressure correlated closely with birth weight and the relationship was best described by a parabolic regression [y = 35.53 + 0.36 (x) + 1.01 (x2)], where y = mean aortic blood pressure in millimeters mercury and x = birth weight in kilograms. The lower limit of normal mean aortic blood pressure was 30 mm Hg at 1,001 to 2,000 gm, 35 mm Hg at 3,000 gm, and 43 mm Hg at 4,000 gm. It is recommended that aortic blood pressure be measured routinely in all infants who are apt to develop cardiopulmonary insufficiency and have indwelling umbilical arterial catheters.

ON THE INDIRECT DETERMINATION OF SYSTOLIC AND DIASTOLIC BLOOD PRESSURE IN THE NEWBORN INFANT

PEDIATRICS ◽  
1968 ◽  
Vol 42 (6) ◽  
pp. 934-942
Author(s):  
Nicholas M. Nelson
Keyword(s):  
Blood Pressure ◽  
Diastolic Blood Pressure ◽  
Newborn Infant ◽  
Newborn Infants ◽  
Indirect Determination ◽  
Aortic Blood ◽  
Aortic Blood Pressure

Classical oscillometry was used to determine indirect systolic/diastolic blood pressure in nine newborn infants. The measurement was facilitated by a relatively simple and inexpensive electronic oscillometer, the construction of which is described. Comparisons between indirect leg and direct intra-aortic blood pressure revealed a systolic difference of 0 to 5 mm Hg and a diastolic difference of 0 to 10 mm Hg, depending on respiratory variations and accuracy of calibration.

Volume status and arterial blood pressures are associated with arterial stiffness in hemodialysis patients

2018 ◽  
Vol 41 (7) ◽  
pp. 378-384 ◽  
Author(s):  
Alper Erdan ◽  
Abdullah Ozkok ◽  
Nadir Alpay ◽  
Vakur Akkaya ◽  
Alaattin Yildiz
Keyword(s):  
Blood Pressure ◽  
Arterial Stiffness ◽  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Pulse Pressure ◽  
Pulse Wave ◽  
Augmentation Index ◽  
Mean Blood Pressure ◽  
Aortic Blood ◽  
Aortic Blood Pressure

Background: Arterial stiffness is a strong predictor of mortality in hemodialysis patients. In this study, we aimed to investigate possible relations of arterial stiffness with volume status determined by bioimpedance analysis and aortic blood pressure parameters. Also, effects of a single hemodialysis session on these parameters were studied. Methods: A total of 75 hemodialysis patients (M/F: 43/32; mean age: 53 ± 17) were enrolled. Carotid-femoral pulse wave velocity, augmentation index, and aortic pulse pressure were measured by applanation tonometry before and after hemodialysis. Extracellular fluid and total body fluid volumes were determined by bioimpedance analysis. Results: Carotid-femoral pulse wave velocity (9.30 ± 3.30 vs 7.59 ± 2.66 m/s, p < 0.001), augmentation index (24.52 ± 9.42 vs 20.28 ± 10.19, p < 0.001), and aortic pulse pressure (38 ± 14 vs 29 ± 8 mmHg, p < 0.001) significantly decreased after hemodialysis. Pre-dialysis carotid-femoral pulse wave velocity was associated with age (r2 = 0.15, p = 0.01), total cholesterol (r2 = 0.06, p = 0.02), peripheral mean blood pressure (r2 = 0.10, p = 0.005), aortic-mean blood pressure (r2 = 0.06, p = 0.02), aortic pulse pressure (r2 = 0.14, p = 0.001), and extracellular fluid/total body fluid (r2 = 0.30, p < 0.0001). Pre-dialysis augmentation index was associated with total cholesterol (r2 = 0.06, p = 0,02), aortic-mean blood pressure (r2 = 0.16, p < 0.001), and aortic pulse pressure (r2 = 0.22, p < 0.001). Δcarotid-femoral pulse wave velocity was associated with Δaortic-mean blood pressure (r2 = 0.06, p = 0.02) and inversely correlated with baseline carotid-femoral pulse wave velocity (r2 = 0.29, p < 0.001). Pre-dialysis Δaugmentation index was significantly associated with Δaortic-mean blood pressure (r2 = 0.09, p = 0.009) and Δaortic pulse pressure (r2 = 0.06, p = 0.03) and inversely associated with baseline augmentation index (r2 = 0.14, p = 0.001). In multiple linear regression analysis (adjusted R2 = 0.46, p < 0.001) to determine the factors predicting Log carotid-femoral pulse wave velocity, extracellular fluid/total body fluid and peripheral mean blood pressure significantly predicted Log carotid-femoral pulse wave velocity (p = 0.001 and p = 0.006, respectively). Conclusion: Carotid-femoral pulse wave velocity, augmentation index, and aortic pulse pressure significantly decreased after hemodialysis. Arterial stiffness was associated with both peripheral and aortic blood pressure. Furthermore, reduction in arterial stiffness parameters was related to reduction in aortic blood pressure. Pre-dialysis carotid-femoral pulse wave velocity was associated with volume status determined by bioimpedance analysis. Volume control may improve not only the aortic blood pressure measurements but also arterial stiffness in hemodialysis patients.

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