Pulse transit time ratio as a potential marker for paediatric crural and brachial blood pressure index

Foo, Jong Yong Abdiel; Lim, Chu Sing; Wilson, Stephen J.; Williams, Gordon R.; Harris, Max; Cooper, David M.

doi:10.1038/sj.jhh.1002139

Cited by 13 publications

(3 citation statements)

References 12 publications

(21 reference statements)

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“…Unfortunately, there were conflicting results with regard to BP estimation. Some results found strong correlations, suggesting that PTT may be used as a potential surrogate marker of BP; however, others found weak correlations [8][9][10][11][12][13].…”

Section: Discussionmentioning

confidence: 99%

An investigation of pulse transit time as a blood pressure measurement method in patients undergoing carotid artery stenting

Can

Kılıç²,

Akdemir³

et al. 2016

Blood Pressure Monitoring

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Section: Discussionmentioning

confidence: 99%

An investigation of pulse transit time as a blood pressure measurement method in patients undergoing carotid artery stenting

Can

Kılıç²,

Akdemir³

et al. 2016

Blood Pressure Monitoring

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“…This could be achieved by measuring PWV over very long arterial segments, with pulse arrival locations at the extremities of the body such as on the ankle. The ankle as a pulse arrival location has been studied in the past for hemodynamic measurement (Nitzan et al 2002, Foo et al 2007, Ankle Brachial Index Collaboration 2008, Padilla et al 2009. It could be used to derive the Ankle-Brachial Index (revealing peripheral artery disease) or the measurement of PWV in children (where other sensor locations might become inaccessible due to small limbs).…”

Section: Practical Issuesmentioning

confidence: 99%

Arterial path selection to measure pulse wave velocity as a surrogate marker of blood pressure

Radha

Zhang²,

Gelissen

et al. 2017

Biomed. Phys. Eng. Express

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The velocity of the propagating arterial pulse wave (pulse wave velocity, PWV) has been proposed as an unobtrusive and possibly continuous surrogate measure of systolic blood pressure (SBP). PWV is derived from the arrival time of the blood pulse at a peripheral arterial location, most often the finger. Reported performances were not yet accurate enough for clinical application but good enough as an unobtrusive surrogate in other settings. However, the finger PPG is not an ideal location in the home setting as it obstructs hand movement and can suffer from peripheral vasomotion and orthostatic pressure changes. In this paper we examine the viability of other pulse arrival locations for the measurement of PWV. PWV was derived to the finger (most common location), wrist (less obtrusive location), ear (more proximal) and ankle (more distal). Correlation analysis for PWV from each location with SBP was performed and the calibration procedure was studied. Wrist PWV accuracy is found to be comparable to finger PWV in terms of correlation and estimation error with SBP. The ear PWV, being a theoretically favorable location, is shown to have a larger inter-subject variance in the calibration procedure compared to other locations. Ankle PWV shows stable calibration parameters across subjects but Bland-Altmann analysis reveals unusual error trends. In conclusion, while results indicate that all sensor locations are usable to some extent, there are still some distinct properties associated with each sensor location that should be taken into account when designing an SBP algorithm based on PWV.

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“…11 Recently, a simple and nonoccluding technique termed pulse transit time ratio (PTTR) has shown to be a potential marker for ABI. 12,13 It can be defined as the ratio of transit time from the lower limb to the T he ankle brachial index (ABI) is the ratio of systolic blood pressure (BP) at the level of the ankle to that at the level of the arm. It has been popularized for more than the decades because of the measurement nature.…”

Section: Bilateral Transit Time Assessment Of Upper and Lower Limbs As A Surrogate Ankle Brachial Index Markermentioning

confidence: 99%

Bilateral Transit Time Assessment of Upper and Lower Limbs as a Surrogate Ankle Brachial Index Marker

Foo

2008

Angiology

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Ankle brachial index is useful in monitoring the pathogenesis of peripheral arterial occlusive diseases. Sphygmomanometer is the standard instrument widely used but frequent prolonged monitoring can be less comfortable for patients. Pulse transit time is known to be inversely correlated with blood pressure and a ratio-based pulse transit time measurement has been proposed as a surrogate ankle brachial index marker. In this study, 17 normotensive adults (9 men; aged 25.4 +/- 3.9 years) were recruited. Two postural change test activities were performed to induce changes in the stiffness of the arterial wall of the moved periphery. Results showed that only readings from the limbs that adopted a new posture registered significant blood pressure and pulse transit time changes (P < .05). Furthermore, there was significant correlation between the ankle brachial index and pulse transit time ratio measure for both test activities (R(2) > or = 0.704). The findings herein suggest that pulse transit time ratio is a surrogate and accommodating ankle brachial index marker.

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Pulse transit time ratio as a potential marker for paediatric crural and brachial blood pressure index

Cited by 13 publications

References 12 publications

An investigation of pulse transit time as a blood pressure measurement method in patients undergoing carotid artery stenting

An investigation of pulse transit time as a blood pressure measurement method in patients undergoing carotid artery stenting

Arterial path selection to measure pulse wave velocity as a surrogate marker of blood pressure

Bilateral Transit Time Assessment of Upper and Lower Limbs as a Surrogate Ankle Brachial Index Marker

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