In medicine, Raynaud's phenomenon (pronounced /reɪˈnoʊz/, us dict: rā·nōz′) is a vasospastic ataxia causing birthmark of the fingers, toes, and occasionally added extremities. This action can aswell could could could could could could could could could cause nails to become breakable with longitudinal ridges. Named for French physician Maurice Raynaud (1834–1881), the could could could could could could could could could cause of the abnormality is believed to be the aftereffect of vasospasms that abatement claret accumulation to the corresponding regions. Emotional stress and algid are archetypal triggers of the phenomenon.
It comprises both Raynaud's disease (also accepted as "Primary Raynaud's phenomenon"1), breadth the abnormality is idiopathic,2 and Raynaud's syndrome (secondary Raynaud's), breadth it is acquired by some added instigating factor. Measurement of hand-temperature gradients is one apparatus acclimated to analyze amid the primary and accessory forms.3
It is accessible for the primary anatomy to advance to the accessory form.4
In acute cases, the accessory anatomy can advance to necrosis or gangrene of the fingertips.
Raynaud's abnormality is an exaggeration of vasomotor responses to algid or affecting stress. Added specifically, it is a hyperactivation of the sympathetic system causing acute vasoconstriction of the borderline claret vessels, arch to tissue hypoxia. Chronic, alternate cases of Raynaud abnormality can aftereffect in decline of the skin, subcutaneous tissues, and muscle. It can aswell rarely could could could could could could could could could cause ulceration and ischemic gangrene.5
The action can could could could could could could could could could cause affliction aural the afflicted extremities, birthmark (paleness) and sensations of algid and/or numbness. This can generally be cutting to those who are not diagnosed, and sometimes it can be obstructive. If anyone with Raynaud's is placed in too algid a climate, it could potentially become dangerous.
The affection cover several circadian blush changes:
When apparent to algid temperatures, the blood accumulation to the fingers or toes, and in some cases the adenoids or earlobes, is clearly reduced; the derma turns anemic or white (called pallor), and becomes algid and numb.
When the oxygen accumulation is depleted, the derma colour turns dejected (called cyanosis).
These contest are episodic, and if the adventure subsides or the breadth is warmed, the claret breeze allotment and the derma colour aboriginal turns red (rubor), and again aback to normal, generally accompanied by swelling and tingling.
All three colour changes are empiric in archetypal Raynaud's. However, not all patients see all of the above colour changes in all episodes, abnormally in milder cases of the condition. Affection are anticipation to be due to acknowledging hyperemias of the areas beggared of claret flow.
In pregnancy, this assurance frequently disappears due to added apparent blood flow. Raynaud's has aswell occurred in breastfeeding mothers, causing nipples to about-face white and become acutely painful.6Nifedipine, a calcium approach blocker and vasodilator was recommended to access claret breeze to the extremities and acutely adequate affliction to the breast, in an acutely baby abstraction group.7
Prevalence
The abnormality is added accepted in women than men, with the Framingham Study award that 5% of men and 8% of women ache from it.verification needed
Epidemiology
It is important to analyze Raynaud's disease from syndrome. In adjustment to diagnose these two forms of Raynaud's, a doctor may attending for signs of arthritis or vasculitis, and may conduct a amount of laboratory tests.
Primary Raynaud's (disease)
Raynaud's disease, or "Primary Raynaud's", is diagnosed if the affection are idiopathic, that is, they action by themselves and not in affiliation with added diseases. Some accredit to Primary Raynaud's ache as "being allergic to coldness". It generally develops in adolescent women in their adolescence and aboriginal adulthood. Primary Raynaud's is anticipation to be at atomic partly hereditary, although specific genes accept not yet been identified.8
Smoking worsens abundance and acuteness of attacks, and there is a hormonal component. Caffeine aswell worsens the attacks. Sufferers are added acceptable to accept migraine and angina than controls.
Secondary Raynaud's (syndrome)
Raynaud's syndrome, or "Secondary Raynaud's", occurs secondary to a advanced array of added conditions. Accessory Raynaud's has a amount of associations:
Erythromelalgia, (the adverse of Raynaud's, with hot and balmy extremities) generally co-exists in patients with Raynaud's)10
It is important to apprehend that Raynaud's can herald these diseases by periods of added than 20 years in some cases, authoritative it finer their aboriginal presenting symptom. This can be the case in the CREST syndrome, of which Raynaud's is a part.
Patients with Accessory Raynaud's can aswell accept affection accompanying to their basal diseases. Raynaud's abnormality is the antecedent affirmation that presents for 70% of patients with scleroderma, a derma and collective disease.
Raynaud's abnormality which is bound to one duke (or to one foot) is referred to as Unilateral Raynaud's. This is an aberrant form, and it is consistently accessory to bounded or bounded vascular disease. It frequently progresses aural several years to affect added limbs as the vascular ache progresses.11
Examination
A accurate history will generally acknowledge whether the action is primary or secondary. Once this has been established, an assay is abundantly to analyze or exclude accessible accessory causes.
Digital avenue pressure: pressures are abstinent in the arteries of the fingers afore and afterwards the easily accept been cooled. A abatement of at atomic 15mmHg is analytic (positive).
Treatment options are abased on the blazon of Raynaud's present. Raynaud's affection is advised primarily by acclamation the basal cause, but includes all options for Raynaud's ache as well. Analysis of primary Raynaud's focuses on alienated triggers:
General care
Avoid ecology triggers, e.g. cold, vibration, etc. Affecting accent is addition accustomed trigger; although the assorted sources of accent can not all be avoided, it is accessible to apprentice healthier, added able means of ambidextrous with them, which will abate accent and its actual anatomy (damaging concrete effects) overall.
Keep your hands, anxiety and arch warm—especially your fingers, toes, aerial and nose—by cutting mittens, cloistral footwear, a ski mask; by application hand- and foot warmers, etc.
Avoid caffeine and added stimulants and vasoconstrictors that accept not been assigned to you by your doctor. Read artefact labels; caffeine is begin not alone in coffee and tea, stay-awake pills, abounding bendable drinks and candies, but aswell in some cosmetics, soaps and shampoos(reference needed).
Make abiding all your doctors apperceive about all the medicines you yield and about all the OTC remedies you use, abnormally hormones and drugs that adapt hormones, such as hormonal contraception, so that these professionals can accomplish an appraisal of your actinic dieting and accomplish any changes that may be indicated. Contraception which is low in estrogen is preferable, and the progesterone alone pill is generally assigned for women with Raynaud's.
If you are diabetic, chase your diabetes analysis plan.
Emergency measures
If white feel (Raynaud's) occurs accidentally and a antecedent of balmy baptize is available, acquiesce apathetic to hardly balmy baptize to run over the afflicted digits while you acclaim beating the area. Continue this action until the white breadth allotment to its normal, advantageous color.
If triggered by acknowledgment in a algid environment, and no balmy baptize is available, abode the afflicted digits in a balmy physique atrium - arm pit, crotch, or even in the mouth. Keep the afflicted breadth balmy at atomic until the whiteness allotment to its normal, advantageous color. Get out of the algid as anon as possible.
Drug therapy
Treatment for Raynaud's abnormality may cover decree medicines that dilate claret vessels, such as calcium approach blockers (nifedipine) or diltiazem.1213 It has the accepted accepted ancillary furnishings of headache, flushing, and abate edema; but these are not about of acceptable severity to crave abeyance of treatment.14
Alpha-1 adrenergic blockers such as prazosin can be acclimated to ascendancy Raynaud's vasospasms beneath administration of a bloom affliction provider.17
In a abstraction appear in the November 8, 2005 affair of Circulation, sildenafil (Viagra) bigger both microcirculation and affection in patients with accessory Raynaud's abnormality aggressive to vasodilatory therapy. The authors, led by Dr Roland Fries (Gotthard-Schettler-Klinik, Bad Schönborn, Germany), report: "In the present study, capillary claret breeze was acutely broken and sometimes hardly apparent in patients with Raynaud's phenomenon. Sildenafil led to a added than 400% access of breeze velocity."18
In astringent cases, a sympathectomy19 action can be performed. Here, the fretfulness that arresting the claret argosy of the fingertips to astringe are surgically cut. Microvascular surgery of the afflicted areas is addition accessible therapy. Infusions of prostaglandins, e.g. prostacyclin, may be tried, with amputation in awfully astringent cases.
A added contempo analysis for astringent Raynaud's is the use of Botox. The 2009 article20 advised 19 patients alignment in age from 15 to 72 years with astringent Raynaud's abnormality of which 16 patients (84%) appear affliction abridgement at rest. 13 patients appear actual affliction relief, 3 added had bit-by-bit affliction abridgement over 1-2 months. All 13 patients with abiding feel ulcers healed aural 60 days. Alone 21% of the patients appropriate again injections. A 2007 article21 describes agnate advance in a alternation of 11 patients. All patients had cogent abatement of pain.
Alternative and Experimental (Research) Approaches
The abstract of the Ginkgo biloba leaves (Egb 761, 80 mg) may abate abundance of attacks.22
Two abstracted gels accumulated on the fingertip (somewhat like two-part epoxy, they cannot be accumulated afore use because they will react) added claret breeze in the fingertips by about three times. One gel independent 5% sodium nitrite and the added independent 5% ascorbic acid. The milliliter of accumulated gel covered an breadth of ~3 cm². The gel was wiped off afterwards a few seconds.23
Piracetam, a nootropic drug, can be advantageous as a abiding analysis for vasospastic disorders.
Arginine, which access nitrous oxide acts as a vasodilator
Fish oil supplements which accommodate long-chain omega-3 blubbery acids may advice to ascendancy affection of primary Raynaud's. There are few studies in the medical abstract ambidextrous with this subject. However, in one 1989 controlled, double-blinded abstraction of 32 patients,25 burning of almost 6.5 grams of continued alternation omega-3 blubbery acids in the anatomy of angle oil decidedly added the time to access or absolutely prevented affection in acknowledgment to algid in patients with primary Raynaud's. Lower doses of angle oil such as may be frequently accessible from bartering vendors accept not been advised and may not be as effective.
^Anderson ME, Moore TL, Lunt M, Herrick AL (March 2007). "The 'distal-dorsal difference': a thermographic constant by which to differentiate amid primary and accessory Raynaud's phenomenon". Rheumatology46 (3): 533–8. doi:10.1093/rheumatology/kel330. PMID17018538.
^Hirschl M, Hirschl K, Lenz M, Katzenschlager R, Hutter HP, Kundi M (June 2006). "Transition from primary Raynaud's abnormality to accessory Raynaud's abnormality articular by analysis of an associated disease: after-effects of ten years of -to-be surveillance". Arthritis and Rheumatism54 (6): 1974–81. doi:10.1002/art.21912. PMID16732585.
^Cotran, Ramzi S.; Kumar, Vinay; Fausto, Nelson; Nelso Fausto; Robbins, Stanley L.; Abbas, Abul K. (2005). Robbins and Cotran pathologic base of disease. St. Louis, Mo: Elsevier Saunders. p. 542. ISBN0-7216-0187-1.
^Holmen OL, Backe B (2009). "An underdiagnosed could could could could could could could could could cause of nipple affliction presented on a camera phone". BMJ339: b2553. doi:10.1136/bmj.b2553.
^Anderson JE, Held N, Wright K (April 2004). "Raynaud's abnormality of the nipple: a treatable could could could could could could could could could cause of aching breastfeeding". Pediatrics113 (4): e360–4. doi:10.1542/peds.113.4.e360. PMID15060268.
^Berlin AL, Pehr K (March 2004). "Coexistence of erythromelalgia and Raynaud's phenomenon". Journal of the American Academy of Dermatology50 (3): 456–60. doi:10.1016/S0190-9622(03)02121-2. PMID14988692.
^Priollet P (October 1998). "[Raynaud's phenomena: analytic and analysis study]" (in French). La Revue Du Praticien48 (15): 1659–64. PMID9814067.
^Kahan A, Weber S, Amor B, Saporta L, Hodara M, Degeorges M (April 1981). "Nifedipine and Raynaud's phenomenon". Annals of Internal Medicine94 (4 pt 1): 546. PMID7212523.
^Kahan A, Weber S, Amor B, Saporta L, Hodara M, Degeorges M (April 1982). "[Controlled abstraction of nifedipine in the analysis of Raynaud's phenomenon]" (in French). Revue Du Rhumatisme et Des Maladies Ostéo-articulaires49 (5): 337–43. PMID6285445.
^Smith CR, Rodeheffer RJ (January 1985). "Raynaud's phenomenon: pathophysiologic appearance and analysis with calcium-channel blockers". The American Journal of Cardiology55 (3): 154B–157B. doi:10.1016/0002-9149(85)90625-3. PMID3881908.
^Pancera P, Sansone S, Secchi S, Covi G, Lechi A (November 1997). "The furnishings of thromboxane A2 inhibition (picotamide) and angiotensin II receptor barricade (losartan) in primary Raynaud's phenomenon". Journal of Internal Medicine242 (5): 373–6. doi:10.1046/j.1365-2796.1997.00219.x. PMID9408065.
^Dziadzio M, Denton CP, Smith R, et al. (December 1999). "Losartan analysis for Raynaud's abnormality and scleroderma: analytic and biochemical allegation in a fifteen-week, randomized, parallel-group, controlled trial". Arthritis and Rheumatism42 (12): 2646–55. doi:10.1002/1529-0131(199912)42:12<2646::AID-ANR21>3.0.CO;2-T. PMID10616013.
^Wang WH, Lai CS, Chang KP, et al. (October 2006). "Peripheral sympathectomy for Raynaud's phenomenon: a deliver procedure". The Kaohsiung Journal of Medical Sciences22 (10): 491–9. doi:10.1016/S1607-551X(09)70343-2. PMID17098681.
^Neumeister MW, Chambers CB, Herron MS, et al. (July 2009). "Botox analysis for ischemic digits". Plastic and Reconstructive Surgery124 (1): 191–201. doi:10.1097/PRS.0b013e3181a80576. PMID19568080.
^Van Beek AL, Lim PK, Gear AJ, Pritzker MR (January 2007). "Management of vasospastic disorders with botulinum adulteration A". Plastic and Reconstructive Surgery119 (1): 217–26. doi:10.1097/01.prs.0000244860.00674.57. PMID17255677.
^Muir AH, Robb R, McLaren M, Daly F, Belch JJ (2002). "The use of Ginkgo biloba in Raynaud's disease: a double-blind placebo-controlled trial". Vascular Medicine7 (4): 265–7. doi:10.1191/1358863x02vm455oa. PMID12710841.
^Tucker AT, Pearson RM, Cooke ED, Benjamin N (November 1999). "Effect of nitric-oxide-generating arrangement on microcirculatory claret breeze in derma of patients with astringent Raynaud's syndrome: a randomised trial". Lancet354 (9191): 1670–5. doi:10.1016/S0140-6736(99)04095-7. PMID10568568.
^Karavidas MK, Tsai PS, Yucha C, McGrady A, Lehrer PM (September 2006). "Thermal biofeedback for primary Raynaud's phenomenon: a analysis of the literature". Applied Psychophysiology and Biofeedback31 (3): 203–16. doi:10.1007/s10484-006-9018-2. PMID17016765.
^DiGiacomo RA, Kremer JM, Shah DM (February 1989). "Fish-oil comestible supplementation in patients with Raynaud's phenomenon: a double-blind, controlled, -to-be study". The American Journal of Medicine86 (2): 158–64. doi:10.1016/0002-9343(89)90261-1. PMID2536517.
Bakst R, Merola JF, Franks AG, Sanchez M (October 2008). "Raynaud's phenomenon: pathogenesis and management". Journal of the American Academy of Dermatology59 (4): 633–53. doi:10.1016/j.jaad.2008.06.004. PMID18656283.
