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    Perbandingan Cystatin C Serum dan Kreatinin Serum untuk Deteksi Cedera Ginjal Akut pada Pasien Sepsis di Ruang Rawat Intensif Rumah Sakit Haji Adam Malik Medan

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    Date
    2014
    Author
    Kurniawan, Heru
    Advisor(s)
    Hanafie, Achsanuddin
    Mursin, Chairul M
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    Abstract
    Background : Sepsis is the most common cause of acute kidney injury in critically ill patients. Sudden changes in glomerular filtration rate (GFR) critically ill patients are not instantly followed by parallel changes in serum creatinine. The aim of the present study was to compare the utility of serum cystatin C and serum creatinin as a marker of renal function in these patients. Methods : A cross-sectional study was conducted in adult patients among 18-65 years in the intensive care unit Haji Adam Malik hospital. Serum creatinine, serum cystatin C and 24-hour creatinine clearance (CrCl) were observed in 24 critically ill patients with sepsis. Twenty-four-hour body surface adjusted CrCl was used as a control because it is the 'gold standard' for determining GFR. Results : Serum creatinine, serum cystatin C and CrCl (mean ± standard deviation [range]) were 1.53 ± 1.13 mg/dl (0.3–4.2 mg/dl), 1.71 ± 1.1 mg/l (0.6–4.8 mg/l), and 66.33 ± 37.77 ml/min per 1.73 m2 (4–137 ml/min per 1.73 m2), respectively. Of the total 24 patients, 17 patients had acute kidney injury. Serum cystatin C has a sensitivity, spesificity, positive predictive value and negative predictive value of 82,4%, 85,7%, 93,33% and 66,67%, respectively. Serum creatinin has a sensitivity, spesificity, positive predictive value and negative predictive value of 52,9%, 85,7%, 90% dan 42,9%, respectively. Cystatin C was diagnostically superior to creatinine (area under the curve [AUC] for cystatin C 0.874 and for creatinine 0,785. Serum cystatin C with cutt-off value 1,03 mg/L and serum creatinin with cutt-off value 1,0 mg/dl has the same sensitivity and spesificity of 82,4% and 85,7%, respectively. Conclusion Cystatin C is an accurate marker of subtle changes in GFR, and it may be superior to creatinine when assessing this parameter in clinical practice in critically ill patients.
     
    Latar belakang : Sepsis merupakan penyebab tersering dari cedera ginjal akut (CGA) pada pasien sakit kritis. Perubahan mendadak pada laju filtrasi glomerulus (LFG) pada pasien sakit kritis tidak diikuti secara paralel dengan perubahan kreatinin serum. Tujuan dari penelitian ini adalah membandingkan kegunaan dari cystatin C serum dan kreatinin serum sebagai penanda biologis fungsi ginjal pada pasien sakit kritis di ruang rawat intensif. Metode : Sebuah studi cross-sectional dilakukan pada pasien dewasa usia 18-65 tahun di ruang rawat intensif RSUP Haji Adam Malik. Kreatinin serum, cystatin C serum dan creatinin clearance (CrCl) 24 jam urin diobservasi pada 24 pasien sakit kritis dengan sepsis. CrCl 24 jam urin yang disesuaikan dengan luas permukaan tubuh (BSA) digunakan sebagai “baku emas” untuk menentukan LFG. Hasil : kreatinin serum, cystatin C serum dan CrCl 24 jam urin (nilai rerata ± standar deviasi [range]) adalah 1,53 ± 1,13 mg/dl (0,3-4,2 mg/dl), 1,71 ± 1,1 mg/L (0,6-4,48 mg/L), dan 66,33 ± 37,77 ml/min/1,73 m2 (4-137 ml/min/1,73 m2 ). 17 dari total 24 pasien mengalami CGA. Cystatin C serum memilki nilai sensitivitas, spesifisitas, nilai duga positif dan nilai duga negatif sebesar 82,4%, 85,7%, 93,33% dan 66,67%. Sedangkan kreatinin serum memiliki nilai sensitivitas, spesifisitas, nilai duga positif dan nilai duga negatif sebesar 52,9%, 85,7%, 90% dan 42,9%. Cystatin C secara diagnostik lebih superior dibandingkan kreatinin serum dengan area under the curve (AUC) 0,874 untuk cystatin C serum dan 0,785 untuk kreatinin serum. Cystatin C serum dengan nilai cutt-off 1,03 mg/L dan kreatinin serum dengan cutt-off 1,0 mg/dl memiliki sensitivitas dan spesifisitas yang sama yaitu 82,4% dan 85,7%. Kesimpulan : Cystatin C adalah penanda biologis yang akurat dalam mendeteksi perubahan akut pada LFG, dan terbukti lebih superior dibandingkan kreatinin serum dalam mendiagnosa CGA pada pasien sakit kritis.

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    http://repositori.usu.ac.id/handle/123456789/39950
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    Repositori Institusi Universitas Sumatera Utara (RI-USU)
    Universitas Sumatera Utara | Perpustakaan | Resource Guide | Katalog Perpustakaan
    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
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