Reliability and Repeatability of Toe Pressures Measured With Laser Doppler and Portable and Stationary Photoplethysmography Devices

Widmer, Lukas Werner; Vikatmaa, Pirkka; Aho, Pekka; Lepäntalo, Mauri; Venermo, Maarit

doi:10.1016/j.avsg.2011.10.011

Cited by 31 publications

(33 citation statements)

References 16 publications

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“…All the methods, ABI, TP, and TcPO 2 , have limitations regarding reproducibility. 2,3,13,14 In a study by de Graaff et al evaluating intraobserver repeatability, the 95% limits of agreement for ABI was 0.09, toe pressure 10 mmHg, and TcPO 2 14 mmHg. 14 In the authors' previous study on the repeatability of TP, the 95% limit of agreement was 38 mmHg.…”

Section: Discussionmentioning

confidence: 99%

“…The method of fluorescence imaging has been described previously. 3 All images were electronically stored for later analysis. A certain range was fixed on the recorded images, which were displayed with 256 luminance intensity, and signal intensity values were plotted against time as a time-intensity curve using regions of interest (ROIs) analysis program (Hamamatsu Photonics K.K., Hamamatsu, Japan).…”

Section: Methodsmentioning

confidence: 99%

“…1 However, these methods have limitations. The repeatability of TcPO 2 and toe pressure (TP) is not good, 2,3 and in many cases where there is loss of toes TP cannot be measured. ABI can be falsely high in many cases because of mediasclerosis.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Pilot Assessment of the Repeatability of Indocyanine Green Fluorescence Imaging and Correlation with Traditional Foot Perfusion Assessments

Venermo

Settembre

Albäck

et al. 2016

European Journal of Vascular and Endovascular Surgery

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Pilot Assessment of the Repeatability of Indocyanine Green Fluorescence Imaging and Correlation with Traditional Foot Perfusion Assessments

Venermo

Settembre

Albäck

et al. 2016

European Journal of Vascular and Endovascular Surgery

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“…; Widmer et al. ). Both studies measured TBP in the patients' big toes or in the second toe when the big toe had been amputated.…”

Section: Introductionmentioning

confidence: 98%

Using the Portapres^® for the measurement of toe arterial blood pressure during movement: is it valid and reliable?

2017

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The aim of the study was to assess the validity and reliability of using the Portapres® to measure toe blood pressure during rest and exercise. Construct validity, concurrent validity, and interday reliability were assessed by measuring toe (Portapres®)) and brachial blood pressure in 16 nondisabled participants on consecutive days. Construct validity was assessed by pedaling on a cycle ergometer (6 revolutions per minute) and comparing the measured toe blood pressure to an estimated value based on orthostatic factors. Concurrent validity was assessed by comparing toe and brachial blood pressure during supine rest and following 10 min of cycling exercise. Interday reliability was assessed by recording toe and brachial blood pressure during supine rest on a second day. Construct validity analysis shows that the toe blood pressure signal was moderately correlated with the changes in heart–toe distance and that changes in toe blood pressure during slow cycling were similar to the estimated value. Resting toe and brachial mean arterial blood pressure showed concurrent validity with only a fixed bias explained by the change in orthostatic pressure and the toe–brachial index. Furthermore, cycling exercise was associated with an increase in brachial and a decrease in toe mean blood pressure. The interday reliability analysis showed no proportional or fixed bias for mean arterial blood pressure. Our study showed the feasibility of using the Portapres® to measure toe blood pressure during movement and can be used to study the effect of movement‐related forces during cycling on toe blood pressure.

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“…At present, the ankle/brachial pressure index (ABI) is the initial method, but toe pressure, not biased by incompressible arteries, should be measured for all patients with suspected CLI, preferably supplemented with TcPO2 measurement (12). Unfortunately, none of these methods always have the desired reproducibility (20)(21)(22). Different criteria for diabetic and non-diabetic lesions have also been proposed (23,24).…”

Section: The Artmentioning

confidence: 99%

The Path from Art to Evidence in Treating Critical Limb Ischaemia — Reflections on 35 Years' Experience

Lepäntalo

2012

Scand J Surg

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despite numerous attempts, chronic critical limb ischaemia (cli) has not been unequivocally defined as yet. its epidemiology is poorly investigated and its prevalence probably higher than anticipated. it is accompanied by high mortality and morbidity irrespective of the way it is treated. its management is very expensive. additionally, the prevailing diabetes epidemic is increasing the need for revascularizations although there is a clear lack of evidence as to when to revascularize an ulcerated diabetic foot. The fast development of endovascular techniques blurs the vision as the window of opportunity for gathering proper evidence keeps narrowing. The notion of endovascular artistry prevails, but attempts to conduct proper studies with clear definitions, strict criteria and appropriate outcome measures in a standardised manner should continue -preferably using propensity scoring if randomised controlled trials are not possible.This review highlights some of the steps leading from art to evidence and illustrates the difficulties encountered along the path. in parallel with this overview, the progress of the treatment for cli in finland is described from the perspective of the work concluded at helsinki University central hospital.

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Reliability and Repeatability of Toe Pressures Measured With Laser Doppler and Portable and Stationary Photoplethysmography Devices

Cited by 31 publications

References 16 publications

Pilot Assessment of the Repeatability of Indocyanine Green Fluorescence Imaging and Correlation with Traditional Foot Perfusion Assessments

Pilot Assessment of the Repeatability of Indocyanine Green Fluorescence Imaging and Correlation with Traditional Foot Perfusion Assessments

Using the Portapres^® for the measurement of toe arterial blood pressure during movement: is it valid and reliable?

The Path from Art to Evidence in Treating Critical Limb Ischaemia — Reflections on 35 Years' Experience

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Reliability and Repeatability of Toe Pressures Measured With Laser Doppler and Portable and Stationary Photoplethysmography Devices

Cited by 31 publications

References 16 publications

Pilot Assessment of the Repeatability of Indocyanine Green Fluorescence Imaging and Correlation with Traditional Foot Perfusion Assessments

Pilot Assessment of the Repeatability of Indocyanine Green Fluorescence Imaging and Correlation with Traditional Foot Perfusion Assessments

Using the Portapres® for the measurement of toe arterial blood pressure during movement: is it valid and reliable?

The Path from Art to Evidence in Treating Critical Limb Ischaemia — Reflections on 35 Years' Experience

Contact Info

Product

Resources

About

Using the Portapres^® for the measurement of toe arterial blood pressure during movement: is it valid and reliable?