Raynaud's disease is a vasospastic disorder causing recurrent vasospasms of the fingers and toes, which is not associated with another illness. Stress or cold exposure may act as triggers.
Presentation
Raynaud’s disease causes episodes of vasospasm during conditions of emotional stress or extreme cold climatic conditions. Usually the toes and fingers are the primary parts that are affected; however in certain instances, the lips, nipples or nose may also get affected. The attacks are short lived but can occur frequently. The following are the various signs and symptoms of Raynaud’s disease.
- The affected area turns white, followed by blue and then red color.
- The area is painful to touch, is numb and also tender.
- As the blood flow gradually returns to normal, the area may throb or tingle and can even produce a burning sensation.
- The order of color changes as described here may not be the same for all individuals.
Workup
A preliminary history of the disease will be taken followed by a physical examination of the affected areas. In addition, various other laboratory tests and imaging studies would also be carried out to diagnose the condition [7]. These include:
- Blood tests to determine complete blood count, urea nitrogen, prothrombin time, serum glucose and thyroid stimulating hormones are carried out.
- Antinuclear antibody test is done to analyze for the presence of antinuclear antibodies. If the test turns out to be positive it indicates a stimulated immune system which is another marker for Raynaud’s disease.
- Erythrocyte sedimentation rate is necessary to distinguish Raynaud’s disease from secondary Raynaud’s phenomenon. A faster than normal sedimentation rate indicates that there is an underlying disease condition.
Treatment
Raynaud’s disease can be treated by adopting simple lifestyle changes. In addition, medications are also employed to reduce the symptoms and prevent future attacks. The following are the various methods for treating Raynaud’s disease:
- Adopting lifestyle changes: Simple steps such as wearing gloves while handling cold substances or in cold climate can help prevent attacks of vasopasm.
- Medications: Medications such as calcium channel blockers, alpha blockers and vasodialtors are prescribed for severe cases. In majority of the cases, nifedipine is the usual choice. In many instances, topical nitroglycerin to be applied locally on the affected areas has also been found to be helpful [8].
- Non-pharmacologic approach: In such type of therapy, patients are advised to avoid foods or conditions that can trigger or generate attacks of Raynaud’s disease. These include avoiding smoking, drugs that can instigate an attack of vasospasm and wearing of appropriate warm clothing in cold climate or while handling frozen stuff [9].
- Diet: There is small evidence suggesting the use of omega-3 fatty acids contained in fish oils to have positive effect on symptoms. Studies have shown a positive association between consumption of fish oils and improvement in the symptoms of Raynaud’s disease [10].
Prognosis
In majority of the cases, prognosis of Raynaud’s disease is extremely favorable. So far no cases of mortality associated with this disease condition has been noted. However, there have been certain pieces of evidences suggesting that if ischemia of the affected body develops then it can lead to necrosis [6].
Etiology
The exact factors that lead to development of Raynaud’s disease are unknown. However, extreme cold temperatures or stressful conditions can predispose an individual to develop such a condition [3]. Exposure to extreme cold climates or inserting hands in cold water can trigger an attack of Raynaud’s disease. Women are more prone to develop such a condition and those with a family history of this disease are also at an increased risk.
Epidemiology
In the United States, it has been estimated that about 2.2% of women and 1.5% of men per year develop Raynaud’s disease [4]. Globally the rate of prevalence of Raynaud’s disease varies from 4.9% to 20.1% in women, to about 3.8% to 13.5% amongst the men population. The disease usually shows signs of development in individuals aged 20 to 30 years.
Pathophysiology
In extreme cold temperatures or in conditions of stress, the body parts such as fingers and toes may develop a condition known as vasospasm. This is a condition characterized by narrowing of the arteries that limits blood supply to the affected area.
The condition often develops in 3 distinct stages defined as vasoconstriction (initial white coloration), accompanied by cyanosis (development of blue color) and finally rapid blood flow that causes development of red color. The parts that are most exposed to extreme cold temperatures such as the toes and fingers develop this condition [5].
Prevention
Individuals prone to develop Raynaud’s disease should consider the following to prevent attacks of the disease:
- Appropriate clothing: Individuals should appropriately dress up during winters. They should also wear warm covering while handling frozen food stuff. While stepping out, it is necessary to wear an extra layer of warmers to negate the effect of cold climate.
- Relocation: Individuals with severe Raynaud’s disease should consider relocating to warmer climates to prevent attacks of the disease.
Summary
Raynaud’s disease is a rare condition characterized by narrowing of the arteries that carry blood from the heart to different parts of the body. Such a process limits blood circulation to the affected areas [1]. Occurrence of short episodes of vasopasm defined as narrowing of blood vessels mark the development of Raynaud’s disease.
Raynaud’s is basically divided into 2 categories, namely primary and secondary phenomenon. Both these conditions share the same name but have distinct features. The primary Raynaud’s phenomenon is also known as the Raynaud’s disease. This disease was named after the medical student Maurice Raynaud who first defined the characteristics of this condition [2].
Patient Information
Definition
Raynaud’s disease is characterized by attacks of vasospasm that mainly affects the toes and fingers. These are the parts usually exposed to cold climate or extreme conditions. In this condition, the blood supply to the affected area is restricted causing development of vasoconstriction, cyanosis and rapid blood flow. The condition is more common in women than men.
Cause
The exact cause of Raynaud’s disease is unknown. Extreme cold temperatures and conditions of stress are known to induce attacks of vasospasm. The exposed areas of the body, most commonly the toes and fingers are known to get affected.
Symptoms
Symptoms of Raynaud’s disease include color changes of the affected areas. Toes and fingers may first turn white color which may then turn blue. Numbness can also set in.
Diagnosis
Diagnosis consists of blood tests to rule out underlying disease conditions. In addition, antinuclear antibody test is also done to assess the levels of the antibody.
Treatment
Treatment of Raynaud’s disease includes making certain lifestyle changes to manage the symptoms and prevent future attacks. In addition, certain medications are also given such as calcium channel blockers to relieve the symptoms. In many cases, topical application of nitroglycerin is also advised.
References
- Block JA, Sequeira W. Raynaud's phenomenon. Lancet 2001; 357:2042.
- LeRoy EC, Medsger TA Jr. Raynaud's phenomenon: a proposal for classification. ClinExpRheumatol 1992; 10:485.
- Coulombe J, Powell J, Hatami A, McCuaig C, Renet S, Marcoux D. Diseases of abnormal sensitivity to cold in children on psychostimulant drugs. J Cutan Med Surg. Oct 2014;18(5):1-4.
- Suter LG, Murabito JM, Felson DT, Fraenkel L. The incidence and natural history of Raynaud's phenomenon in the community. Arthritis Rheum. Apr 2005;52(4):1259-63.
- Wigley FM, Flavahan NA. Raynaud's phenomenon. Rheum Dis Clin North Am. Nov 1996;22(4):765-81.
- Wigley FM. Clinical practice. Raynaud's Phenomenon. N Engl J Med 2002; 347:1001.
- Lavery JP, Lisse JR. Raynaud's Phenomenon. In: Taylor RB, ed. Difficult Diagnosis. Vol 2. Philadelphia, Pa: WB Saunders Co; 1992:386-91.
- Ennis H, Anderson ME, Wilkinson J, Herrick AL. Calcium channel blockers for primary Raynaud's phenomenon. Cochrane Database Syst Rev. Jan 30 2014;1:CD002069.
- Malenfant D, Catton M, Pope JE. The efficacy of complementary and alternative medicine in the treatment of Raynaud's phenomenon: a literature review and meta-analysis. Rheumatology (Oxford). Jul 2009;48(7):791-5.
- DiGiacomo RA, Kremer JM, Shah DM. Fish-oil dietary supplementation in patients with Raynaud's phenomenon: a double-blind, controlled, prospective study. Am J Med. Feb 1989;86(2):158-64.