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Potential effect of Sildenafil beyond pulmonary hypertension in a patient with diffuse systemic sclerosis and cryoglobulinemic vasculitis.

AbstractINTRODUCTION:
Pulmonary arterial hypertension (PAH) is a serious complication of systemic sclerosis (SSc), has a dramatic impact on prognosis and survival and is a leading cause of death.
CASE DESCRIPTION:
A 40 years old female patient with difuse cutaneous SSc (dcSSc) presented with progressive dyspnea, choking sensation, cough, abdominal distension, constipation and dysphagia to solids. The muscle power was mildly reduced and multiple purpuric eruptions were present on the legs of variable sizes. The patient was ANCA negative and had positive cryoglobulinemia. The hepatitis C virus test was positive and the skin biopsy histopathology proved small vessel (leucocytoclastic) vasculitis. The modified Rodnan total skin score (MRSS) was 37. There was deterioration of the pulmonary function tests and transesophageal echocardiography revealed PAH (RVSP 60 mmHg). Sildenafil 50 mg/day resulted in a remarkable improvement of the dyspnea and Raynauds' with a significant improvement of the skin tightness as the MRSS became 22. The small vessel vasculitic rash remarkably improved and the RVSP became 34 mmHg with a dramatic improvement of the PAH.
DISCUSSION AND EVALUATION:
Sildenafil enhances vasodilatation, has antiproliferative effects and is effective in the treatment of PAH. The remarkable improvement in the vasculitic skin lesions in this case after sildenafil is the second report after the described dramatic improvement of small vessel vasculitis in a case with Takayasu arteritis. The emerging trends make it necessary to exploit the full therapeutic potential of Sildenafil in scleroderma and PAH with other extrapulmonary manifestations.
CONCLUSION:
We report a very rare association of dcSSc with small vessel cryoglobulinemic vasculitis with a remarkable improvement after sildenafil.
AuthorsTamer A Gheita, Hussam Ammar, Sanaa A Kenawy
JournalSpringerPlus (Springerplus) Vol. 3 Pg. 559 ( 2014) ISSN: 2193-1801 [Print] Switzerland
PMID25332860 (Publication Type: Journal Article)

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