STUDY THE CHANGE OF ARTERIAL BLOOD PRESSURE MEASURED BY NON-INVASIVE AND INVASIVE METHODS IN CHILDREN WITH DENGUE HEMORRHAGIC FEVER SHOCK

2011 ◽  
pp. 101-107
Author(s):  
Anh Tuan Ha ◽  
Hung Viet Phan ◽  
Huu Hoa Pham
Keyword(s):  
Blood Pressure ◽  
Intensive Care Unit ◽  
Systolic Blood Pressure ◽  
Arterial Blood Pressure ◽  
Dengue Hemorrhagic Fever ◽  
Hemorrhagic Fever ◽  
Non Invasive ◽  
Arterial Blood ◽  
Significant Difference ◽  
Level 3

Objective: To study the change of arterial blood pressure measured by non-invasive (NIBP) and invasive (PA) methods in children with Dengue Hemorrhagic fever shock. Patients and methods: included 60 patients ≤ 15 years old and hospitalized with diagnosis of Dengue Hemorrhagic fever with shock (level 3, level 4) at intensive care unit of Can tho Children's Hospital. Each patient’s arterial blood pressure will be simultaneously measured by both NIBP and PA methods. Results: At the time of shock, value of systolic blood pressure measured by the NIBP was 100.7 ± 10.8 mmHg, which was higher than the values measured by the PA was 91.7 ± 8.9 mmHg (p<0.05). Differentiating between the two methods was 9.1 ± 9.4 mmHg. At the time of shock exit, value of systolic blood pressure measured by the NIBP was 104.4 ± 10.6 mm Hg and measured by the PA was 105.5 ± 12.3 mmHg. Differentiating between the two measurements was 12.3 ± 10.3 mmHg. Conclusion: There was a statistically significant difference of blood pressure values measured by two non-invasive and invasive methods at the time of shock.

Comparison of Non-Invasive Oscillometric and Intra-Arterial Blood Pressure Measurements in Children Admitted to the Pediatric Intensive Care Unit

2021 ◽  
Author(s):  
Jaswinder Kaur ◽  
Siddharth Bhargava ◽  
Puneet Aulakh Pooni ◽  
Deepak Bhat ◽  
Gurdeep S. Dhooria ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Intensive Care Unit ◽  
Intensive Care ◽  
Pediatric Intensive Care Unit ◽  
Arterial Blood Pressure ◽  
Pediatric Intensive Care ◽  
Critically Ill Children ◽  
Non Invasive ◽  
Arterial Blood ◽  
The Difference

AbstractIntra-arterial blood pressure (IABP) measurement, although considered the gold standard in critically ill children, is associated with certain risks and lacks widespread availability. This study was conducted to determine the differences and agreements between oscillometric non-invasive blood pressure (NIBP) and invasive IABP measurements in children. Inclusion criteria consisted of children (from 1 month to 18 years) admitted to the pediatric intensive care unit (PICU) of a teaching hospital who required arterial catheter insertion for blood pressure (BP) monitoring. The comparison between IABP and NIBP was studied using paired t-test, Bland–Altman analysis, and Pearson's correlation coefficient. In total, 4,447 pairs of simultaneously recorded hourly NIBP and IABP measurements were collected from 65 children. Mean differences between IABP and NIBP were −3.6 ± 12.85, −4.7 ± 9.3, and −3.12 ± 9.30 mm Hg for systolic, diastolic, and mean arterial BP, respectively (p < 0.001), with wide limits of agreement. NIBP significantly overestimated BP (p < 0.001) in all three BP states (hypotensive, normotensive, and hypertensive), except systolic blood pressure (SBP) during hypertension where IABP was significantly higher. The difference in SBP was most pronounced during hypotension. The difference in SBP was significant in children <10 years (p < 0.001), with the maximum difference being in infants. It was insignificant in adolescents (p = 0.28) and underweight children (p = 0.55). NIBP recorded significantly higher BP in all states of BP except SBP in the hypertensive state. SBP measured by NIBP tended to be the most reliable in adolescents and underweight children. NIBP was the most unreliable in infants, obese children, and during hypotension.

scholarly journals Rapid Declines in Systolic Blood Pressure Are Associated With an Increase in Pulse Transit Time

2020 ◽  
Author(s):  
Sebastian Schaanning ◽  
Nils Kristian Skjærvold
Keyword(s):  
Blood Pressure ◽  
Linear Regression ◽  
Systolic Blood Pressure ◽  
Arterial Blood Pressure ◽  
Transit Time ◽  
Medical Information ◽  
Moving Average ◽  
Pulse Transit Time ◽  
Non Invasive ◽  
Arterial Blood

Abstract Background : Substantial investigation has been made into the correlation between Pulse Transit Time (PTT) and Blood Pressure (BP), as a possible route to achieve continuous non-invasive measurement of BP (cNIBP). We investigated whether PTT-trends could model BP-trends during episodes of rapid declines in Systolic Blood Pressure (SBP). Methods: From the freely available Medical Information Mart for Intensive Care (MIMIC-III) waveform database, we identified subjects who experienced a reduction in SBP from ≥ 120mmHg to ≤ 90 mmHg during a period of ≤ 15 minutes, for whom complete peak detection was possible. SBP was extracted from the Arterial Blood Pressure (ABP) waveform, and PTT was calculated from the R-peak of the ECG to the peak of the ABP waveform. Both SBP and PTT were processed using a moving average filter, yielding the variables SBP AV and PTT-RA AV . A moving average of continuous heart rate (HR AV ) was also analysed as a negative control to assess the effect of averaging. The intra-individual association between variables was assessed per subject using linear regression. Results: 511 patients were included for the main analysis. Median correlation coefficients (r) obtained from linear regression versus SBP AV were as follows: PTT-RA AV -0.93 (IQR -0.98 to -0.76), HR AV 0.46 (IQR -0.16 to 0.83). Regression slopes for the relationship between SBP AV and PTT-RA AV displayed a median of -2.46 mmHg/ms (IQR -3.47 mmHg/ms to -1.61 mmHg/ms). In supplementary analysis, results did not differ substantially when widening inclusion criteria, but the results were not always consistent within subjects across episodes of hypotension. Conclusions: In a large cohort of critically ill patients experiencing episodes of rapid declines in systolic blood pressure, there was a moderate-strong intra-individual correlation between averaged systolic blood pressure and averaged pulse transit time as measured from ECG R-peak to the peak of the arterial blood pressure waveform. Our findings encourage further investigation into using the pulse transit time for non-invasive real-time detection of hypotension.

scholarly journals A METHOD TO DETERMINE THE PERIPHERAL ARTERIAL BLOOD PRESSURE IN THE MOUSE

1941 ◽  
Vol 74 (1) ◽  
pp. 29-40 ◽  
Author(s):  
Philip D. McMaster
Keyword(s):  
Blood Pressure ◽  
Systolic Blood Pressure ◽  
Arterial Blood Pressure ◽  
Close Agreement ◽  
Carotid Arteries ◽  
Systolic Pressure ◽  
Arterial Blood ◽  
Relative Transparency ◽  
Direct Measurements ◽  
Peripheral Arterial

Advantage has been taken of the relative transparency of the claw of the mouse to devise a method, here described, to measure the blood pressure in the animal's leg. Direct measurements of the systolic blood pressure from the carotid arteries of anesthetized mice have also been made. Simultaneous blood pressure readings by both these methods applied to the same animal showed close agreement. The systolic pressure ranged from 60 to 126 mm. Hg, according to the conditions.

scholarly journals Genetic Deep Convolutional Autoencoder Applied for Generative Continuous Arterial Blood Pressure via Photoplethysmography

Sensors ◽  
2020 ◽  
Vol 20 (14) ◽  
pp. 3829
Author(s):  
Muammar Sadrawi ◽  
Yin-Tsong Lin ◽  
Chien-Hung Lin ◽  
Bhekumuzi Mathunjwa ◽  
Shou-Zen Fan ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Systolic Blood Pressure ◽  
Diastolic Blood Pressure ◽  
Arterial Blood Pressure ◽  
Cross Validation ◽  
Huge Number ◽  
Patient Monitor ◽  
Arterial Blood ◽  
Convolutional Autoencoder ◽  
Data Generalization

Hypertension affects a huge number of people around the world. It also has a great contribution to cardiovascular- and renal-related diseases. This study investigates the ability of a deep convolutional autoencoder (DCAE) to generate continuous arterial blood pressure (ABP) by only utilizing photoplethysmography (PPG). A total of 18 patients are utilized. LeNet-5- and U-Net-based DCAEs, respectively abbreviated LDCAE and UDCAE, are compared to the MP60 IntelliVue Patient Monitor, as the gold standard. Moreover, in order to investigate the data generalization, the cross-validation (CV) method is conducted. The results show that the UDCAE provides superior results in producing the systolic blood pressure (SBP) estimation. Meanwhile, the LDCAE gives a slightly better result for the diastolic blood pressure (DBP) prediction. Finally, the genetic algorithm-based optimization deep convolutional autoencoder (GDCAE) is further administered to optimize the ensemble of the CV models. The results reveal that the GDCAE is superior to either the LDCAE or UDCAE. In conclusion, this study exhibits that systolic blood pressure (SBP) and diastolic blood pressure (DBP) can also be accurately achieved by only utilizing a single PPG signal.

A comparison of CAT Doppler and oscillometric Memoprint machines for non-invasive blood pressure measurement in conscious cats

2005 ◽  
Vol 7 (3) ◽  
pp. 147-152 ◽  
Author(s):  
Rosanne E. Jepson ◽  
Vivien Hartley ◽  
Michael Mendl ◽  
Sarah ME Caney ◽  
David J Gould
Keyword(s):  
Blood Pressure ◽  
Systolic Blood Pressure ◽  
Diastolic Blood Pressure ◽  
Blood Pressure Measurement ◽  
Systemic Hypertension ◽  
Pressure Measurements ◽  
Non Invasive ◽  
Measuring Devices ◽  
Oscillometric Device ◽  
Significant Difference

Indirect blood pressure measurements were compared in 28 conscious cats using Doppler and oscillometric blood pressure-measuring devices. Ten cats were used to compare Doppler measurements between two examiners and 18 cats were used to compare Doppler and oscillometric measurements. The Doppler machine obtained systolic and diastolic blood pressure readings in 100% and 51% of attempts, respectively. With the oscillometric machine, systolic and diastolic blood pressure readings were obtained in 52% of the attempts. With the Doppler, measures of mean systolic blood pressure between two examiners were positively correlated, but there was no correlation for diastolic blood pressure measures. When comparing the results obtained by Doppler and oscillometric machines there was no significant difference between mean systolic blood pressure readings, but the oscillometric machine produced significantly higher estimates of diastolic blood pressure. In both cases, the standard deviations for the oscillometric machine were considerably larger than those for the Doppler machine. The first reading of systolic blood pressure obtained with the Doppler machine was an excellent predictor of the mean of five readings, but this was not so for the oscillometric machine. It took less than 5 min to obtain five readings in 37.5% of cases with the Doppler machine but this was true for only 5% of cases with the oscillometric machine. Two cats with ophthalmological lesions consistent with systemic hypertension were identified. In these two patients, systolic blood pressure measurements were between 200 and 225 mmHg when measured by Doppler, and between 140 and 150 mmHg when measured by the oscillometric machine. This suggests that a lower reference range for normal systolic blood pressure values should be used for the oscillometric device.

Non-invasive detection of changes in arterial blood pressure with novel nonlinear capacitive resonance circuit technology

Resuscitation ◽  
2012 ◽  
Vol 83 ◽  
pp. e39
Author(s):  
Marc Jaeger ◽  
Stefan Fernsner ◽  
Daniel Wettach ◽  
Andrea Irouschek ◽  
Friedrich Einhaus ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Arterial Blood Pressure ◽  
Resonance Circuit ◽  
Non Invasive ◽  
Arterial Blood ◽  
Circuit Technology
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