Constitutive Speckled Vascular Mottling of the Skin Resembling Bier White Spots: Lack of Venoarteriolar Reflex in Dermal Arterioles

Gniadecki, Robert

doi:10.1001/archderm.136.5.674-a

Arch Dermatol

2000

DOI: 10.1001/archderm.136.5.674-a

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Constitutive Speckled Vascular Mottling of the Skin Resembling Bier White Spots: Lack of Venoarteriolar Reflex in Dermal Arterioles

Robert Gniadecki¹

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Cited by 26 publications

(21 citation statements)

References 2 publications

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20

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“…However, laser Doppler velocimetry studies show that these red spots are caused by relative vasodilation with higher blood flow and vasoconstriction in the pale areas. [ 7 ] Although dilated capillaries seen on histology in our patient appear to corroborate these features, the overall histopathologal patterns remain unmapped due to paucity of cases.…”

mentioning

confidence: 60%

Bier spots: An uncommon cause of mottled skin

Mahajan

¹

,

Khatri

²

,

Singh

³

et al. 2015

Indian Dermatol Online J

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

“…However, laser Doppler velocimetry studies show that these red spots are caused by relative vasodilation with higher blood flow and vasoconstriction in the pale areas. [ 7 ] Although dilated capillaries seen on histology in our patient appear to corroborate these features, the overall histopathologal patterns remain unmapped due to paucity of cases.…”

mentioning

confidence: 60%

Bier spots: An uncommon cause of mottled skin

Mahajan

¹

,

Khatri

²

,

Singh

³

et al. 2015

Indian Dermatol Online J

Get access via publisher Add to collection Cite

Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

“…When blood supply is restored, the spots disappear but tend to recur in the same place if the occlusion is repeated. They were also described in physiological conditions in young adults, mainly on the lower limbs, as shown by Gniadecki and Gniadecka 2 . To our knowledge, only one patient with Bier's spots had an underlying disease.…”

mentioning

confidence: 62%

Bier's white spots associated with scleroderma renal crisis

Peyrot

¹

,

Boulinguez

²

,

Sparsa

³

et al. 2007

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

“…We suspect that the high P v POTS patients have restricted blood volumes related to vasoconstriction. There may be an abnormal venoarteriolar reflex [29,30] in these patients, which is supported by laser flowmetry measurements made in a cohort of patients [31]. Global hypovolaemia has been demonstrated in subsets of patients with chronic orthostatic intolerance [24].…”

Section: Abnormal Peripheral Venous Resistance In Chronic Orthostaticmentioning

confidence: 71%

Contrasting neurovascular findings in chronic orthostatic intolerance and neurocardiogenic syncope

Stewart¹,

WELDON²

2003

Get access via publisher Add to collection Cite

Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

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