Obstructive sleep apnea and the risk of chronic kidney disease – glomerular filtration rate estimations based on serum cystatin C and creatinine concentrations

2015 ◽  
Author(s):  
Adam Nowinski ◽  
Anna Czyzak-Gradkowska ◽  
Damian Korzybski ◽  
Luiza Jonczak ◽  
Przemyslaw Bielen ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Obstructive Sleep Apnea ◽  
Glomerular Filtration Rate ◽  
Sleep Apnea ◽  
Kidney Disease ◽  
Glomerular Filtration ◽  
Filtration Rate ◽  
Serum Cystatin C ◽  
Serum Cystatin ◽  
Obstructive Sleep

Serum Cystatin C-Based Formulas for Prediction of Glomerular Filtration Rate in Patients with Chronic Kidney Disease

2010 ◽  
Vol 114 (2) ◽  
pp. c118-c126 ◽  
Author(s):  
Radovan Hojs ◽  
Sebastjan Bevc ◽  
Robert Ekart ◽  
Maksimiljan Gorenjak ◽  
Ludvik Puklavec
Keyword(s):  
Chronic Kidney Disease ◽  
Glomerular Filtration Rate ◽  
Kidney Disease ◽  
Glomerular Filtration ◽  
Cystatin C ◽  
Filtration Rate ◽  
Serum Cystatin C ◽  
Serum Cystatin

scholarly journals CORRELATION OF RENOGRAM WITH CYSTATIN-C LEVELS AND CREATININE CLEARANCE IN MEASURING GLOMERULAR FILTRATION RATE

2015 ◽  
Vol 38 (1) ◽  
pp. 1
Author(s):  
Aisyah Elliyanti ◽  
Iskandar Iskandar ◽  
Syaiful Azmi
Keyword(s):  
Chronic Kidney Disease ◽  
Glomerular Filtration Rate ◽  
Kidney Disease ◽  
Creatinine Clearance ◽  
Glomerular Filtration ◽  
Cystatin C ◽  
Filtration Rate ◽  
Serum Cystatin C ◽  
Serum Cystatin ◽  
Consecutive Stage

AbstrakRenogram 99mTc-DTPA (diethylenetriamine pentacetic acid) memiliki beberapa kelebihan dalam mengukur laju filtrasi glomerulus (LFG). Cystatin-c digunakan sebagai petanda biologik baru untuk memperkirakan LFG. Tujuan penelitian ini adalah untuk menentukan korelasi nilai LFG antara renogram dengan cystatin-c dan kliren kreatinin pada pasien dengan penyakit ginjal kronis (PGK). Subjek penelitian adalah pasien PGK stadium dua berdasarkan hasil estimasi LFG dengan rumus Cockroft-Gault. Pasien yang memenuhi kriteria diperiksa renogram, kadar kreatinin serum, cystatin-c dan klirens kreatinin.Rerata LFG dari 30 orang subjek yang diperiksa dengan renogram, cystatin-c, creatinine clearance, Cockroft-Gault’s formula berturut turut adalah 64.96 ml/min/1.73m2 (SD 28.047), 53.37 ml/min/1.73m2 (SD 21.29), 58.09 ml/min/1.73m2 (SD 35.45), 46.00 ml/min/1.73m2 (SD 12.06). Korelasi antara renogram dengan cystatin-c dengan nilai r = 0.585 dan p = 0.0007, antara renogram dengan klirens kreatinin dengan nilai r = 0.388 dan p = 0.03) dan antara renogram dengan rumus Cockroft-Gault’s dengan nilai r = -0.029 dan p=0.87. Pada penelitian ini didapatkan hasil korelasi yang lebih baik antara renogram dengan cystatin-c dari pada antara renogram dengan klirens kreatinin dan antara renogram dengan rumus Cockroft-Gault’s. Lebih lanjut, cystain-c merupakan alternatif yang lebih baik untuk memperkirakan LFG jika metode pemeriksaan LFG yang mendekati teknik pemeriksaan yang ideal tidak tersedia.AbstractRenogram using 99mTc-DTPA (diethylenetriamine pentacetic acid) has advantages in the measurement of glomerular filtration rate (GFR). Serum cystatin-c was recently projected to be the new marker of estimated GFR. The aim of this study is to establish correlation between GFRs, derived from renogram with cystatin-c levels and creatinine clearances in chronic kidney disease patients.We put to study thirty consecutive stage two of chronic kidney disease patients assigned based on GFR estimation by Cockroft-Gault’s formula, taking into account the serum creatinine. Cystatin-c and creatinine clearance were performed to determine of GFR and renogram was included in this study. A total of thirty subjects, the mean of GFRs were taken from renogram, cystatin-c, creatinine clearance, Cockroft-Gault’s formula were 64.96 ml/min/1.73m2 (SD 28.047), 53.37 ml/min/1.73m2 (SD 21.29), 58.09 ml/min/1.73m2 (SD 35.45), 46.00 ml/min/1.73m2 (SD 12.06) respectively. A correlation between renogram with cystatin-c (r = 0.585 and p = 0.0007) and renogram with creatinine clearance (r = 0.388 and p = 0.03) and renogram with Cockroft-Gault’s formula (r = -0.029 and p=0.87). This study has shown that a better correlation between renogram with cystatin-c than with creatinine clearance or Cockroft-Gault’s formula. Furthermore, cystain-c would be better alternative method incase having problems to obtain a closest ideal methods for GFR.

scholarly journals Comparison of Chronic Kidney Disease Epidemiology Collaboration Equations with Other Accepted Equations for Estimation of Glomerular Filtration Rate in Indian Chronic Kidney Disease Patients

2017 ◽  
Vol 16 (2) ◽  
pp. 238-244
Author(s):  
Kumaresan Ramanathan ◽  
Giri Padmanabhan
Keyword(s):  
Chronic Kidney Disease ◽  
Glomerular Filtration Rate ◽  
Kidney Disease ◽  
Serum Creatinine ◽  
Cystatin C ◽  
Filtration Rate ◽  
Serum Cystatin C ◽  
Serum Cystatin ◽  
Disease Epidemiology ◽  
Measured Gfr

Background and Aim: In routine clinical practice, the estimation of glomerular filtration rate (GFR) based on serum creatinine has been followed. However, the reliability of creatinine in estimation of GFR is biased and imprecise, leading to the misdiagnosis of chronic kidney disease (CKD). The serum cystatin C is an alternative marker for estimating GFR. Hence, we aimed to compare the newly proposed Chronic Kidney Disease Epidemiology Collaboration Equations (CKD-EPI) with four approved equations based on both creatinine and cystatin C with reference to Tc-99m-diethylenetriamine pentaacetate (Tc-99m-DTPA) considered as a standard.Materials and Methods:Two hundred and one patients were enrolled in the study from a private nephrology outpatient clinic(OPD), Tiruchirappalli, India. The serum creatinine and cystatin C were measured along with routine biochemistry tests. The measurement of GFR was done by Tc-99m-DTPA gates method. The estimated GFR (eGFR) were calculated using serum cystatin C and creatinine based formulae along with the new CKD-EPI formulae. All eGFR estimations were compared with the measured GFR by gates method.Results: The average measured GFR of end stage, severe, moderate, mild renal disease and normal patient groups were 10.17±2.47, 22.58±4.40, 39.05±7.06, 69.62±24.64 and 118.06±29.23 respectively. When comparing the diagnostic accuracy for predicting GFR using well established formulae, the cystatin C based formulae have shown to be highly accurate in all stages of CKD than creatinine based formulae. Among cystatin C based formulae, CKD-EPI Cystatin C had relatively better diagnostic accuracy for predicting GFR in all stages of CKD.Conclusion: CKD-EPI Cystatin C formula has unbiased and more accurate to predict GFR in all stages of CKD.Bangladesh Journal of Medical Science Vol.16(2) 2017 p.238-244

scholarly journals Glomerular filtration rate in patients with obstructive sleep apnea: the influence of cystatin-C-based estimations and comorbidity

2020 ◽  
Vol 12 (3) ◽  
pp. 175-183
Author(s):  
Adam Nowiński ◽  
Anna Czyżak-Gradkowska ◽  
Luiza Jonczak ◽  
Damian Korzybski ◽  
Joanna Peradzyńska ◽  
...  
Keyword(s):  
Obstructive Sleep Apnea ◽  
Glomerular Filtration Rate ◽  
Sleep Apnea ◽  
Glomerular Filtration ◽  
Cystatin C ◽  
Filtration Rate ◽  
Obstructive Sleep

Obstructive sleep apnea and decreased glomerular filtration rate among commercial drivers

2019 ◽  
Vol 64 ◽  
pp. S273
Author(s):  
S.M. Mousavi Movahed ◽  
S. Akbarpour ◽  
A. Najafi ◽  
M. Saraei ◽  
F. Taghizadeh ◽  
...  
Keyword(s):  
Obstructive Sleep Apnea ◽  
Glomerular Filtration Rate ◽  
Sleep Apnea ◽  
Glomerular Filtration ◽  
Filtration Rate ◽  
Obstructive Sleep ◽  
Commercial Drivers

scholarly journals HUBUNGAN INDEKS MASSA TUBUH DENGAN LAJU FILTRASI GLOMERULUS PADA MAHASISWA DENGAN OBESITAS DI FAKULTAS KEDOKTERAN UNIVERSITAS SAM RATULANGI

2013 ◽  
Vol 1 (1) ◽  
Author(s):  
Fadel Baladraf ◽  
Eko E. Surachmanto ◽  
Emma Sy. Moeis
Keyword(s):  
Body Mass Index ◽  
Chronic Kidney Disease ◽  
Glomerular Filtration Rate ◽  
Kidney Disease ◽  
Glomerular Filtration ◽  
Body Mass ◽  
Filtration Rate ◽  
Pearson Correlation ◽  
Obstructive Sleep ◽  
The Relationship

Abstract. Obesity is the big worldwide healthy problem. Obesity itself is a complex disorder of appetite regulation and energy metabolism are controlled by specific biological factors. Individual with obesity will increase the risk of cardiometabolic syndrome, type-2 diabetes, hypertension, dyslipidemia, coronary heart disease, osteoarthritis, stroke, gallblader disease, obstructive sleep apnea, gastroesophageal reflux disease (GERD), chronic kidney disease, and some kind of cancer (endometrial, breast, and colon). The relationship between obesity and chronic kidney disease (CKD) are mediated through several biological mechanism, including hormonal factors, inflammation, oxidative stress, and endothelial dysfunction.The purpose of this research is to know the relationship between body mass index with glomerular filtration rate. This research uses analytic methods to observational cross-sectional stdy design. Data collected from measurements of weight and height, plasma creatinine and by using the Cockroft-Gault formula.Result from the study conducted on 29 people sample consisted of 18 men and 11 women, by using the pearson correlation test can be seen a strong correlation between body mass index with glomerular filtration rate with p=0,000 (p<0,01). Conclusion: body mass index has a relationship (correlation) or significantly stronger with glomerular filtration rate Key word: obesity, glomerular filtration rate, chronic kidney disease (CKD)  Abstrak.Obesitas merupakan masalah kesehatan di seluruh dunia. Obesitas sendiri merupakan suatu kelainan kompleks pengaturan nafsu makan dan metabolisme energi yang dikendalikan oleh beberapa faktor biologik spesifik. Individu dengan obesitas akan mengalami peningkatan risiko Cardiometabolic syndrome, Diabetes tipe-2, hipertensi, dislipidemia, Penyakit jantung koroner, osteoarthritis, stroke, Penyakit kandung empedu, Obstructive sleep apnea, Gastroesophageal reflux disease (GERD), Penyakit ginjal kronik dan Beberapa kanker (endometrium, payudara, dan usus besar). Hubungan antara obesitas dan penyakit ginjal kronik (PGK) dimediasi melalui beberapa mekanisme biologis, termasuk faktor hormonal, peradangan, stres oksidatif, dan disfungsi endotel.Tujuan penelitian ini adalah mengetahui hubungan antara indeks massa tubuh dengan laju filtrasi glomerulus pada orang dengan obesitas. Metode penelitian bersifat analitik observasional dengan rancangan studi potong lintang.Data diperoleh dari pengukuran berat badan dan tinggi badan, kreatinin plasma dan dengan menggunakan formula Cockroft-Gault.Dari penelitian yang dilakukan pada 29 orang sampel yang terdiri dari 18 laki-laki dan 11 perempuan dengan menggunakan uji pearson correlation dapat dilihat adanya hubungan yang kuat antara indeks massa tubuh dengan laju filtrasi glomerulus dengan nilai p=0.000 (p<0,01). Simpulan: indeks massa tubuh mempunyai hubungan (korelasi) kuat atau signifikan dengan laju filtrasi glomerulus Kata kunci: obesitas, laju filtrasi glomerulus, penyakit ginjal kronis (PGK).

Performance in Measurement of Serum Cystatin C by Laboratories Participating in the College of American Pathologists 2014 CYS Survey

2015 ◽  
Vol 139 (7) ◽  
pp. 888-893 ◽  
Author(s):  
John H. Eckfeldt ◽  
Amy B. Karger ◽  
W. Greg Miller ◽  
Gregory P. Rynders ◽  
Lesley A. Inker
Keyword(s):  
Chronic Kidney Disease ◽  
Glomerular Filtration Rate ◽  
Kidney Disease ◽  
Glomerular Filtration ◽  
Cystatin C ◽  
Filtration Rate ◽  
Full Potential ◽  
Serum Cystatin C ◽  
Target Values ◽  
Fresh Frozen

Context Cystatin C is becoming an increasingly popular biomarker for estimating glomerular filtration rate, and accurate measurements of cystatin C concentrations are necessary for accurate estimates of glomerular filtration rate. Objective To assess the accuracy of cystatin C concentration measurements in laboratories participating in the College of American Pathologists CYS Survey. Design Two fresh frozen serum pools, the first from apparently healthy donors and the second from patients with chronic kidney disease, were prepared and distributed to laboratories participating in the CYS Survey along with the 2 usual processed human plasma samples. Target values were established for each pool by using 2 immunoassays and ERM DA471/IFCC international reference material. Results For the normal fresh frozen pool (ERM-DA471/IFCC–traceable target of 0.960 mg/L), the all-method mean (SD, % coefficient of variation [CV]) reported by all of the 123 reporting laboratories was 0.894 mg/L (0.128 mg/L, 14.3%). For the chronic kidney disease pool (ERM-DA471/IFCC–traceable target of 2.37 mg/L), the all-method mean (SD, %CV) was 2.258 mg/L (0.288 mg/L, 12.8%). There were substantial method-specific biases (mean milligram per liter reported for the normal pool was 0.780 for Siemens, 0.870 for Gentian, 0.967 for Roche, 1.061 for Diazyme, and 0.970 for other/not specified reagents; and mean milligram per liter reported for the chronic kidney disease pool was 2.052 for Siemens, 2.312 for Gentian, 2.247 for Roche, 2.909 for Diazyme, and 2.413 for other/not specified reagents). Conclusions Manufacturers need to improve the accuracy of cystatin C measurement procedures if cystatin C is to achieve its full potential as a biomarker for estimating glomerular filtration rate.

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