Laser Doppler imaging for assessment of microcirculation in juvenile systemic sclerosis

Piotto, Daniela Gerent Petry; Corrêa, Marcelo José Uchôa; Silva, Vanessa Bugni Miotto e; Kayser, Cristiane; Terreri, Maria Teresa

doi:10.1093/rheumatology/ket288

Cited by 11 publications

(6 citation statements)

References 16 publications

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“…This method is different from the method of measuring blood flow using conventional skin temperature measurement. This tool has the advantage of being non-touching and non-invasive; it is used in many areas, such as rheumatism, tissue restoration, and burns [ 20 ]. In this study, the blood flow was measured at the spot marked using a laser Doppler imager (Moor LDI2-IR, USA, 2007).…”

Section: Methodsmentioning

confidence: 99%

Effects of Contrast Therapy Using Infrared and Cryotherapy as Compared with Contrast Bath Therapy on Blood Flow, Muscle Tone, and Pain Threshold in Young Healthy Adults

2020

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Background The aim of this research was to compare the effects of contrast bath therapy (CBT) and contrast therapy (CT) using infrared (IR) and cryotherapy (CR) on blood flow, muscle tone, and pain in the forearm. Material/Methods Twenty healthy individuals participated in this study. Each participant received 2 kinds of CT separated by a week. CBT involved immersion in hot water (38–40°C) for 4 minutes, followed by 1 minute of immersion in cold water (12–14°C) for four rotations. CT using IR and CR was performed in the same manner as CBT. Results The variables measured were blood flow, muscle tone, and pain before and after intervention. Both types of CT produced fluctuations in the blood flow ( P <0.05). The pain threshold increased on both therapies; a significant increase was noted with IR and CR ( P <0.05) therapies. Muscle elasticity was induced and stiffness was reduced with all therapies ( P <0.05). IR and CR resulted in significant changes ( P <0.05) in blood flow as compared with the CBT. Conclusions The results of this study suggest that CT using IR and CR is more effective in improving blood flow than CBT and has the same effect on muscle tone and pain. Nonetheless, using IR and CR is efficient with regard to mobility and maintaining temperature; therefore, it would be convenient to use these in clinical settings. Further studies involving CT should be carried out to determine whether our findings are clinically relevant.

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Section: Methodsmentioning

confidence: 99%

Effects of Contrast Therapy Using Infrared and Cryotherapy as Compared with Contrast Bath Therapy on Blood Flow, Muscle Tone, and Pain Threshold in Young Healthy Adults

2020

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“…However, it is performed much more frequently than CT and its spectrum of applicability to RA diagnostics is broad. 6,7 Ultrasonography is the basic imaging test used in RA diagnostics. In contrast to MRI, it is easily accessible and cost-effective.…”

Section: Imaging Diagnosticsmentioning

confidence: 99%

The role of ultrasonography in the diagnostic criteria for rheumatoid arthritis and monitoring its therapeutic efficacy

Jeka¹,

Dura²,

Żuchowski³

et al. 2018

Adv Clin Exp Med

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Rheumatoid arthritis (RA) is a chronic systemic disease of connective tissue. It is characterized by symmetrical multiple joint involvement and extra-articular symptoms. Modern RA treatment methods place a particular emphasis on the earliest possible diagnosis and initiation of appropriate treatment. Currently, ultrasonography (US) is the key imaging test performed in RA patients. However, despite the general acknowledgement of its role in the assessment of disease activity, US was not included in the applicable ACR/EULAR criteria. This is due to the lack of strictly defined criteria for US evaluation and the interpretation of test results. In addition, the absence of a correlation between the common DAS/DAS28 disease activity score and ultrasound assessment of joints makes developing new diagnostic criteria difficult. The objective of this article is to review recent scientific reports on the use of ultrasonography in the diagnosis and monitoring of RA and to indicate current problems associated with the interpretation of test results and the comparison with applicable scores of disease activity.

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“…51,52 Studies discriminating between primary and secondary RP Many investigators have examined the ability of laser Doppler techniques to distinguish between primary and secondary (usually systemic sclerosis-related) RP, including recently in children. 53 In the future, laser Doppler techniques may enter the clinical arena to aid the clinician in diagnosis.…”

Section: Studies Examining Interrelationships Between Microvascular Smentioning

confidence: 99%

Vascular diagnostics for Raynaud's phenomenon

Dinsdale¹,

Herrick²

2014

JVD

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Raynaud's phenomenon (RP) is common, and in most patients is primary (idiopathic) when due to reversible vasospasm and does not progress to irreversible tissue injury. However, in those patients for whom RP is secondary to an underlying disease (eg, systemic sclerosis or atherosclerosis), progression to digital ulceration or critical ischemia can occur. Therefore, the key question for the clinician is "Why does this patient have RP?" Vascular diagnostics play a key role in answering this. In this review, we firstly discuss the different vascular investigations relevant to clinical practice: nail fold capillaroscopy (including the different methodologies for examining the nail fold capillaries, and the role of capillaroscopy in helping to differentiate between primary and systemic sclerosis-related RP), thermography (available in specialist centers), and evaluation of large vessel disease (for example, due to atherosclerosis). We then discuss research tools, mainly laser Doppler methods, including laser Doppler imaging and laser speckle contrast imaging. These are commercially available as complete imaging systems and are (relatively) easy to use. The main current goal in vascular imaging research is to validate these novel state-of-the-art techniques as outcome measures of digital vascular disease, and then apply them in early and later phase studies of new treatment approaches, thus facilitating drug development programs.

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Laser Doppler imaging for assessment of microcirculation in juvenile systemic sclerosis

Abstract: In JSS patients, LDI showed a lower FBF before and after CS compared with healthy controls and may be an objective and sensitive method for the measurement of digital skin blood flow in RP children.

Cited by 11 publications

References 16 publications

Effects of Contrast Therapy Using Infrared and Cryotherapy as Compared with Contrast Bath Therapy on Blood Flow, Muscle Tone, and Pain Threshold in Young Healthy Adults

Effects of Contrast Therapy Using Infrared and Cryotherapy as Compared with Contrast Bath Therapy on Blood Flow, Muscle Tone, and Pain Threshold in Young Healthy Adults

The role of ultrasonography in the diagnostic criteria for rheumatoid arthritis and monitoring its therapeutic efficacy

Vascular diagnostics for Raynaud's phenomenon

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Laser Doppler imaging for assessment of microcirculation in juvenile systemic sclerosis

Abstract: In JSS patients, LDI showed a lower FBF before and after CS compared with healthy controls and may be an objective and sensitive method for the measurement of digital skin blood flow in RP children.

Cited by 11 publications

References 16 publications

Effects of Contrast Therapy Using Infrared and Cryotherapy as Compared with Contrast Bath Therapy on Blood Flow, Muscle Tone, and Pain Threshold in Young Healthy Adults

Effects of Contrast Therapy Using Infrared and Cryotherapy as Compared with Contrast Bath Therapy on Blood Flow, Muscle Tone, and Pain Threshold in Young Healthy Adults

The role of ultrasonography in the diagnostic criteria for rheumatoid arthritis and monitoring its therapeutic efficacy

Vascular diagnostics for Raynaud&#39;s phenomenon

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Vascular diagnostics for Raynaud's phenomenon