Calculated mean arterial blood pressure in critically ill neonates

Gevers, M.; Hack, W. W. M.; Ree, E. F.; Lafeber, Harrie N.; Westerhof, Nico

doi:10.1007/bf00788533

Cited by 11 publications

(4 citation statements)

References 5 publications

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“…MAP equals the area under the pressure wave averaged over the cardiac cycle, which depends on pressure wave contour. 15 The transducer system was checked for damping coefficients and natural frequencies using a fast flush test immediately before each measurement, 1 , 16 and, if necessary, abnormal damping was corrected. The RA BP measurements were used as the basis for all therapeutic decisions.…”

Section: Methodsmentioning

confidence: 99%

Agreement between distal and forearm radial arterial pressures in patients undergoing prone spinal surgery: a prospective, self-controlled, observational study

Xiong,

Xu,

Hui

et al. 2023

J Int Med Res

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Objective To test agreement and interchangeability between distal (dRA) and forearm radial arterial (RA) pressures (AP) during general anesthesia (GA) for prone spinal surgery. Methods This prospective observational study involved 40 patients scheduled for GA spinal surgery. The right dRA and left forearm RA were cannulated in all patients to continuously measure invasive blood pressures (IBP). We compared the agreement and trending ability of systolic AP (SAP), diastolic AP (DAP), and mean AP (MAP) at each site 15 minutes after tracheal intubation, start of surgery, 30 and 60 minutes after the start of surgery, and after skin suturing. Results Paired BP values (n = 184) (37 cases) were analyzed. The bias (standard deviation), limits of agreement, and percentage error were: SAP: 0.19 (3.03), −5.75 to 6.12, and 5.04%; DAP: −0.06 (1.75), −3.50 to 3.38, and 5.10%; and MAP: 0.08 (1.52), −2.90 to 3.05, and 3.54%, respectively. The linear regression coefficients of determination were 0.981, 0.982, and 0.988 for SAPs, DAPs, and MAPs, respectively; four-quadrant plot concordance rates were 95.11%, 92.03%, and 92.66%, respectively. Conclusion All arterial BPs showed good agreement and trending capabilities for both the dRA and RA. The dRA may be substituted for the RA in IBP monitoring.

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Section: Methodsmentioning

confidence: 99%

Agreement between distal and forearm radial arterial pressures in patients undergoing prone spinal surgery: a prospective, self-controlled, observational study

Xiong,

Xu,

Hui

et al. 2023

J Int Med Res

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“…The gold standard for BP measurement is an appropriately calibrated intra-arterial catheter. Both umbilical and radial arterial blood pressure correlates with aortic blood pressures 35 . However, for babies who do not have or require invasive monitoring, the most frequently used technique is via an oscillometric manometer.…”

Section: Measurement Of Blood Pressurementioning

confidence: 97%

Prevalence of Hypertension in Neonates: A study in two Tertiary Care Hospitals of Bangladesh

Hasan,

Khan,

Alom

et al. 2023

Bangabandhu Sheikh Mujib Medical Coll J

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Hypertension is a condition which is usually not common in neonates. If hypertension can be detected early in neonates it is possible to decrease morbidity and mortality in future by taking appropriate measures. This cross sectional study was carried out in two tertiary care hospitals to find out the prevalence of hypertension in neonates. Study period was from July, 2017 to June 2018. To determine the prevalence of neonatal hypertension, 600 neonates were included. Blood pressure was measured by using neonatal cuff; on three occasions at same visit at least 5 minutes interval while neonates were quiet and awake. Out of the 600 neonates only two had hypertension (0.33%). Both hypertensive neonates were male and detected in Neonatal Intensive Care Unit (NICU). The prevalence of hypertension in term and preterm neonates were 0.57% and 0.23% respectively. Paired samples test of blood pressure of neonates showed significant value with birth weight in kg and gestational age in weeks. Linear regression showed increase blood pressure with increasing gestational age of neonates. In this study 95% of neonates had blood pressure at or lower than reference value. It can be concluded from the present study that early diagnosis of hypertension during neonatal period will help to control childhood hypertension and prevent future morbidity and mortality. Bangabandhu Sheikh Mujib Med. Coll. J. 2023;2(2):106-111.

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“…Diastolic and systolic blood pressure was measured at baseline on all participants. The mean arterial pressure 10 was then calculated as a weighted average of diastolic and systolic blood pressure with a weight of one third and two thirds, respectively. The mean arterial pressure (MAP) ranged from 55.0 to 167.8 with the sample mean of 97.6

\pm

12.9 mm Hg.…”

Section: Folic Acid For Vascular Outcome Reduction In Transplantation...mentioning

confidence: 99%

Shape restricted additive hazards models: Monotone, unimodal, and U‐shape hazard functions

Chung,

Ivanova,

Fine

2024

Statistics in Medicine

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We consider estimation of the semiparametric additive hazards model with an unspecified baseline hazard function where the effect of a continuous covariate has a specific shape but otherwise unspecified. Such estimation is particularly useful for a unimodal hazard function, where the hazard is monotone increasing and monotone decreasing with an unknown mode. A popular approach of the proportional hazards model is limited in such setting due to the complicated structure of the partial likelihood. Our model defines a quadratic loss function, and its simple structure allows a global Hessian matrix that does not involve parameters. Thus, once the global Hessian matrix is computed, a standard quadratic programming method can be applicable by profiling all possible locations of the mode. However, the quadratic programming method may be inefficient to handle a large global Hessian matrix in the profiling algorithm due to a large dimensionality, where the dimension of the global Hessian matrix and number of hypothetical modes are the same order as the sample size. We propose the quadratic pool adjacent violators algorithm to reduce computational costs. The proposed algorithm is extended to the model with a time‐dependent covariate with monotone or U‐shape hazard function. In simulation studies, our proposed method improves computational speed compared to the quadratic programming method, with bias and mean square error reductions. We analyze data from a recent cardiovascular study.

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Calculated mean arterial blood pressure in critically ill neonates

Cited by 11 publications

References 5 publications

Agreement between distal and forearm radial arterial pressures in patients undergoing prone spinal surgery: a prospective, self-controlled, observational study

Agreement between distal and forearm radial arterial pressures in patients undergoing prone spinal surgery: a prospective, self-controlled, observational study

Prevalence of Hypertension in Neonates: A study in two Tertiary Care Hospitals of Bangladesh

Shape restricted additive hazards models: Monotone, unimodal, and U‐shape hazard functions

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