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Background: The pathogenesis of Henoch-Schonlein Purpura (HSP), a multisystem organ-involved small vessel vasculitis, is unknown. HSP is more common in youngsters than in adults. HSP is associated with a history of malignancies, medications, vaccinations, and upper respiratory tract infections. Painful purpura, arthritis, stomach discomfort, and renal involvement are symptoms that may be seen in HSP patients. Adult patients had a much higher rate of renal involvement than children. Purpose: To report a case of HSP in an adult with gastrointestinal and renal involvement. Case: A 45-year-old man complained of an arm, leg, and waist rash for two weeks before admission to the hospital. He also has stomach pains, nausea, and vomiting to deal with. His symptoms have just appeared now for the first time. During a renal function test, blood urea nitrogen (BUN) and creatine serum levels rose. On a urinalysis, proteinuria and microscopic hematuria were found. Leucocytoclastic vasculitis was discovered during the histopathology investigation. HSP diagnosis was based on the ACR and ICC criteria. The patient was given 3x2 tablets of 0.5 mg dexamethasone, 3x2 tablets of cetirizine, 2x10 mg lisinopril, 2x50 mg ranitidine injection, and 2 grams ceftriaxone. Discussion: The clinical symptoms of HSP are used to make the diagnosis. In the vast majority of instances, the treatment is only supportive therapy. Corticosteroid usually are usually used for HSP with multisystem organ involvement to reduce pain severity and faster resolution of renal manifestation. Conclusion: Follow up on renal function is needed to monitor the worsening of renal disease.

Latar belakang.Henoch Schonlein purpura (HSP) dengan keterlibatan ginjal memiliki prognosis yang lebih buruk, dan infeksi gigi merupakan faktor risiko terbanyak terjadinya HSP dengan keterlibatan ginjal. Tujuan.Menganalisis hubungan antara riwayat infeksi gigi dan terjadinya HSP dengan keterlibatan ginjal pada anak. Metode.Penelitian retrospektif dengan rancangan potong lintang terhadap 146 anak yang didiagnosis HSP berdasarkan kriteria American College of Rheumatology(ACR) sertaEuropean League Against Rheumatism (EULAR), Pediatric Rheumatology International Trials Organization(PRINTO), dan Pediatric Rheumatology European Society(PRESS). Penelitian dilakukan di Divisi Alergi-imunologi Departemen Ilmu Kesehatan Anak Rumah Sakit Hasan Sadikin Bandung, periode Januari 2006− Desember 2012. Data pasien diambil dari rekam medis dan dianalisis menggunakan uji Chi square. Hasil.Didapatkan 146 anak dengan HSP, 93(63,7%) laki-laki dan 53(36,3%) perempuan dengan rasio 1,8:1. Rerata usia pasien 8,05±2,9 tahun. Sembilan puluh dua pasien (63%) diduga mengalami infeksi sebagai pencetus terjadinya HSP. Didapatkan 41 pasien HSP dengan keterlibatan ginjal (28%), yaitu proteinuria 6 (14,6%), hematuria 9 (22,0%), serta proteinuria dan hematuria 26 (63,4%) Infeksi gigi merupakan faktor pencetus terbanyak dibandingkan dengan faktor pencetus lainnya pada HSP dengan keterlibatan ginjal, yaitu 25 pasien (61%) dengan p=0,025; Odd ratio(OR) 2,7 (1,1–6,4) dengan interval kepercayaan 95%. Kesimpulan. Anak dengan riwayat infeksi gigi memiliki risiko tinggi untuk terjadi HSP dengan keterlibatan ginjal.