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You are here: Home / Articles / Rheumatologists Find Nailfold Capillaroscopy an Increasingly Useful Diagnostic Tool

Rheumatologists Find Nailfold Capillaroscopy an Increasingly Useful Diagnostic Tool

October 18, 2017 • By Ruth Jessen Hickman, MD

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Clinicians can also utilize prognostic indices based on capillaroscopy findings to assess the probability of progression to SSc. Using the Prognostic Index for Nailfold Capillaroscopic Examination (PRINCE), clinicians can use specific findings to estimate the five-year probability of secondary Raynaud’s phenomenon developing in patients with isolated Raynaud’s phenomenon. The presence of giant capillary loops, microhemorrhages and reduced capillary number seem to be the characteristics with the most predictive role.10

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Systemic Sclerosis

Identifying patients in the very beginning stages of SSc is important, because early use of vascular remodeling drugs may alter the disease course.8 Currently, no treatment for SSc has been clinically proven to halt the disease progression in people with clinically recognizable disease, but available treatments may make a difference if started earlier, before irreversible damage has occurred.3

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In 2000, Dr. Cutolo and colleagues first categorized the morphological patterns that can be observed in SSc.11 These can be used to help stage the disease and evaluate drug therapy. It’s important to note the extent of microvascular damage correlates with the severity of skin, heart and lung involvement.12

Dr. Cutolo notes, “Distinct morphological patterns on nailfold videocapillaroscopy and a gradual increase in severity of microvascular abnormalities (quantifiable and scored) are observed during clinical progression of systemic sclerosis and seem to reflect the evolution of the disease process.” The changes reflect the pathophysiological changes characteristic of the disease, with hypoxia over time leading to capillary modification and neo-angiogenesis directed by growth factors in a profibrotic environment.5

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An early pattern is characterized by the appearance of several dilated capillaries, some bleeding, but without loss of capillary loops. This early pattern can be often be detected many years before the full clinical manifestations of SSc become apparent.2

In somewhat more advanced disease, an active pattern appears, displaying frequent bleeding megacapillaries, moderate loss of capillaries, moderate disorganization of the capillary architecture and rare or absent branching capillaries.3

Even more advanced scleroderma is characterized by a late pattern, which shows severe capillary loss, neovascularization by megacapillaries and massive avascular areas. This late pattern is more frequent in patients who have active disease and moderate to severe skin or visceral involvement.11

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In general practice, clinicians generally categorize these patterns qualitatively based on pattern recognition. However, there are semi-quantitative methods and quantitative methods that can be used to assess certain characteristics of the capillaries using manual or automatic methods. Researchers have also used scoring systems to assess the risk of digital ulceration as a complication. Other studies have looked at the association between capillaroscopic findings and the onset of interstitial lung disease, pulmonary artery hypertension, cardiac involvement, skin involvement and death.3,12

Pathogenic changes in capillary morphology may long predate the onset of clinical symptoms. And in patients already diagnosed with a systemic disease, such as systemic sclerosis, the level of capillary damage may reflect internal organ involvement.

Evaluation of Treatment Response

Microhemorrhages represent the death of the giant capillaries. Their disappearance from the microvessel array, with consequent loss of capillaries, is followed in advanced stages by angiogenesis and the formation of new, abnormal vessels.

Microhemorrhages represent the death of the giant capillaries. Their disappearance from the microvessel array, with consequent loss of capillaries, is followed in advanced stages by angiogenesis and the formation of new, abnormal vessels.

Pages: 1 2 3 4 5 6 7 8 9 | Single Page

Filed Under: Conditions, Systemic Inflammatory Syndromes Tagged With: Clinical, diagnostic tool, nailfold capillaroscopy, office visit, patient care, Practice Management, Raynaud’s phenomenon, rheumatologist, rheumatology, symptom, Systemic sclerosisIssue: October 2017

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About Ruth Jessen Hickman, MD

Ruth Jessen Hickman, MD, was born and raised in eastern Kentucky, where she first cultivated her love of literature, writing and personal narratives. She attended Kenyon college, where she received a Bachelor of Arts in philosophy, summa cum laude. She worked with individuals with psychiatric conditions and later in a neuroscience lab at the University of Illinois, Chicago, before graduating from Indiana University Medical School in 2011. Instead of pursuing clinical medicine, Ruth opted to build on her strength of clearly explaining medical topics though a career as a freelance medical writer, writing both for lay people and for health professionals. She writes across the biomedical sciences, but holds strong interests in rheumatology, neurology, autoimmune diseases, genetics, and the intersection of broader social, cultural and emotional contexts with biomedical topics. Ruth now lives in Bloomington, Ind., with her husband, son and cat. She can be contacted via her website at ruthjessenhickman.com.

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