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Rana et al.                                                                                                                                                                                                      Takayasu’s arteritis

                                                              brachial  arteries; difference  of at least 10  mmHg in
                                                              systolic blood pressure between the arms; bruit over
                                                              one or both subclavian arteries or the abdominal aorta;
                                                              arteriographic narrowing or occlusion of the entire aorta,
                                                              its primary branches, or large arteries in the proximal
                                                              upper or lower extremities, not due to arteriosclerosis,
                                                              fibromuscular dysplasia, or other causes.
                                                              The presence of three out of six criteria is required
                                                              for diagnosis and demonstrates a sensitivity of 90.5%
                                                              and a specificity of 97.8%. [16]
                                                              Ultrasound, computer tomography and magnetic
                                                              resonance angiography (MRA) have shown promise
                             A                          B     in the diagnosis of TA. MRA provide high resolution

           Figure 3: Magnetic resonance angiography. (A) Image of neck and   detail of vessel wall thickness and lumen calcification;
           thorax showing significant aorto-arteritic changes affecting all the   also  allow  the  vessel  wall  thickness  and  lumen
           major vessels; (B) image of neck vessels axial section showing   configuration.
           significant aorto-arteritic changes affecting all the major vessels
           the association with certain human leukocyte antigen   Steroids are the mainstay of treatment for Takayasu’s
           (alleles and other autoimmune processes such as    arteritis. Steroid unresponsive patients can be treated
           sarcoidosis and inflammatory bowel disease. It is also   with cytotoxic drugs including cyclophosphamide,
           suggested that tuberculosis may have an association,   azathioprine, and methotrexate.  Treatment should
           given a high prevalence of active and past infection in   aim to control disease activity, preserve vascular
           patients with Takayasu’s arteritis. [15]           competence with minimal long term side effects.
                                                              Surgical  treatment  is  offered  to  those  with  severe
           The pattern of Takayasu’s arteritis is typically triphasic,   stenosis  of  renal  artery,  extremity  claudication,
           consisting of a systemic nonvascular phase, a vascular   stenosis of three or more cerebral vessels, or evidence
           inflammatory  phase,  and  a  quiescent  “burnt  out”   of coronary artery involvement.
           phase.  The  symptoms  of Takayasu’s  arteritis  vary
                 [16]
           depending on the site and degree of arterial lesions.   Our patient had no past history of systemic
           Most  patients  initially  present  with  non-specific   manifestations like fever, joint pains, and weight loss.
           symptoms, such as fever, night sweats, malaise and   Neurological  deficit  heralded  the  onset  of  disease.
           arthralgia.  As  the  disease  progresses,  symptoms   She had five out of six of the criteria set forth by the
           of end organ disease due to the ischemia, including   American College of Rheumatology and was thus
           renovascular hypertension or coronary artery disease,   diagnosed with Takayasu’s arteritis.
           may  develop.  As  inflammation  progresses,  stenotic
           lesions  develop  and  patient  develop  associated   In conclusion,  when confronted with patients with
           symptoms. Diminished or absent pulses, vascular    neurological problems, we should be aware of rare but
           bruits, hypertension, retinopathy, aortic regurgitation,   possible  causes, which  may be treatable  or at least
           congestive cardiac failure, neurological manifestation   positively modifiable with correct and timely diagnosis.
           and  pulmonary  artery  involvement  are  some  of   Although neurological manifestations are common in
           common manifestations of these patients.           patients with Takayasu’s arteritis in the chronic phase,
                                                              acute stroke as an initial presentation has rarely been
           Neurological complication occurring in the chronic   reported. Our patient shows that Takayasu’s arteritis
           phase of the disease, range from asymptomatic      should be considered  in the differential diagnosis
           disease to catastrophic neurological impairment and   of young stroke.  This case again  emphasises  the
           most  commonly  include  headache,  dizziness,  visual   importance  of looking  for peripheral  pulses and
           disturbances,  convulsive  crisis,  transient  ischemic   recording  blood pressure in all four limbs at least in
           attack, stroke and posterior reversible encephalopathy   young stroke patients.
           syndrome. [l7]
                                                              Financial support and sponsorship
           The American College  of Rheumatology  established   Nil.
           classification  criteria  for  the  diagnosis  of  Takayasu’s
           arteritis: age at disease onset ≤ 40 years; claudication   Conflicts of interest
           of the extremities; decreased pulsation of one or both   There are no conflicts of interest.
            194                                                                   Neuroimmunology and Neuroinflammation ¦ Volume 3 ¦ August 31, 2016
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