The correlation between kidney volume and measured glomerular filtration rate in an Asian ADPKD population: a prospective cohort study
Abstract Background Autosomal dominant polycystic kidney disease (ADPKD) is the most common hereditary kidney disorder that leads to end stage renal disease (ESRD). Cyst expansion in ADPKD is strongly associated with the decline in renal function. However, the correlation between total kidney volume...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2021-05-01
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| Series: | BMC Nephrology |
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| Online Access: | https://doi.org/10.1186/s12882-021-02392-0 |
| _version_ | 1818624560610672640 |
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| author | Bunyong Phakdeekitcharoen Watcharapong Treesinchai Pornphan Wibulpolprasert Sarinya Boongird Pinkael Klytrayong |
| author_facet | Bunyong Phakdeekitcharoen Watcharapong Treesinchai Pornphan Wibulpolprasert Sarinya Boongird Pinkael Klytrayong |
| author_sort | Bunyong Phakdeekitcharoen |
| collection | DOAJ |
| description | Abstract Background Autosomal dominant polycystic kidney disease (ADPKD) is the most common hereditary kidney disorder that leads to end stage renal disease (ESRD). Cyst expansion in ADPKD is strongly associated with the decline in renal function. However, the correlation between total kidney volume (TKV) and glomerular filtration rate (GFR) at an early stage has not been well demonstrated. There is growing evidence that utilization of estimated GFR (eGFR) may induce misleading information in a population with near normal renal function. Therefore, a more accurate method is essential. Methods A prospective cohort of ADPKD patients was conducted with clinical data and laboratory collection. Measured GFR (mGFR) was assessed by iohexol plasma clearance method using ultra performance liquid chromatography. eGFR was calculated using the CKD-EPI equation. Kidney volumes were evaluated using MRI imaging protocol. Results Thirty two patients completed the study. The mean age was 56 years old. The mean initial mGFR was 83.8 mL/min/1.73m2. The mean change in mGFR per year was –2.99 mL/min/1.73m2/year. The mean initial height-adjusted TKV (htTKV) was 681.0 mL/m. The mean percentage change in htTKV per year (%ΔhtTKV/y) was 4.77 %/year. mGFR had a better association with clinical parameters than eGFR. Initial mGFR was significantly and inversely correlated with initial htTKV and age. The percentage change in mGFR per year was significantly and inversely correlated with the %ΔhtTKV/y and 24-hr urine albumin. The %ΔhtTKV/y was significantly correlated with initial htTKV. Conclusions Our studies demonstrated that mGFR using iohexol is a more reliable and accurate method than eGFR for evaluating GFR changes in the early stages of ADPKD patients. There is a strong inverse correlation between kidney volume and mGFR in an Asian ADPKD population. The initial htTKV is a good predictor of kidney volume progression. The %ΔhtTKV/y is a good early surrogate marker for the decline in renal function. 24-hr urine albumin is also a good indicator for renal progression. |
| first_indexed | 2024-12-16T18:58:54Z |
| format | Article |
| id | doaj.art-c288d32acb6745f38b0965b4f8d7280e |
| institution | Directory Open Access Journal |
| issn | 1471-2369 |
| language | English |
| last_indexed | 2024-12-16T18:58:54Z |
| publishDate | 2021-05-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Nephrology |
| spelling | doaj.art-c288d32acb6745f38b0965b4f8d7280e2022-12-21T22:20:27ZengBMCBMC Nephrology1471-23692021-05-0122111210.1186/s12882-021-02392-0The correlation between kidney volume and measured glomerular filtration rate in an Asian ADPKD population: a prospective cohort studyBunyong Phakdeekitcharoen0Watcharapong Treesinchai1Pornphan Wibulpolprasert2Sarinya Boongird3Pinkael Klytrayong4Division of Nephrology, Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol UniversityDivision of Nephrology, Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol UniversityDepartment of Diagnostic and Therapeutic Radiology, Faculty of Medicine, Ramathibodi Hospital, Mahidol UniversityDivision of Nephrology, Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol UniversityDivision of Nephrology, Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol UniversityAbstract Background Autosomal dominant polycystic kidney disease (ADPKD) is the most common hereditary kidney disorder that leads to end stage renal disease (ESRD). Cyst expansion in ADPKD is strongly associated with the decline in renal function. However, the correlation between total kidney volume (TKV) and glomerular filtration rate (GFR) at an early stage has not been well demonstrated. There is growing evidence that utilization of estimated GFR (eGFR) may induce misleading information in a population with near normal renal function. Therefore, a more accurate method is essential. Methods A prospective cohort of ADPKD patients was conducted with clinical data and laboratory collection. Measured GFR (mGFR) was assessed by iohexol plasma clearance method using ultra performance liquid chromatography. eGFR was calculated using the CKD-EPI equation. Kidney volumes were evaluated using MRI imaging protocol. Results Thirty two patients completed the study. The mean age was 56 years old. The mean initial mGFR was 83.8 mL/min/1.73m2. The mean change in mGFR per year was –2.99 mL/min/1.73m2/year. The mean initial height-adjusted TKV (htTKV) was 681.0 mL/m. The mean percentage change in htTKV per year (%ΔhtTKV/y) was 4.77 %/year. mGFR had a better association with clinical parameters than eGFR. Initial mGFR was significantly and inversely correlated with initial htTKV and age. The percentage change in mGFR per year was significantly and inversely correlated with the %ΔhtTKV/y and 24-hr urine albumin. The %ΔhtTKV/y was significantly correlated with initial htTKV. Conclusions Our studies demonstrated that mGFR using iohexol is a more reliable and accurate method than eGFR for evaluating GFR changes in the early stages of ADPKD patients. There is a strong inverse correlation between kidney volume and mGFR in an Asian ADPKD population. The initial htTKV is a good predictor of kidney volume progression. The %ΔhtTKV/y is a good early surrogate marker for the decline in renal function. 24-hr urine albumin is also a good indicator for renal progression.https://doi.org/10.1186/s12882-021-02392-0Autosomal dominant polycystic kidney disease (ADPKD)Measured GFR (mGFR)IohexolTotal kidney volume (TKV)Ultra performance liquid chromatography (UPLC) |
| spellingShingle | Bunyong Phakdeekitcharoen Watcharapong Treesinchai Pornphan Wibulpolprasert Sarinya Boongird Pinkael Klytrayong The correlation between kidney volume and measured glomerular filtration rate in an Asian ADPKD population: a prospective cohort study BMC Nephrology Autosomal dominant polycystic kidney disease (ADPKD) Measured GFR (mGFR) Iohexol Total kidney volume (TKV) Ultra performance liquid chromatography (UPLC) |
| title | The correlation between kidney volume and measured glomerular filtration rate in an Asian ADPKD population: a prospective cohort study |
| title_full | The correlation between kidney volume and measured glomerular filtration rate in an Asian ADPKD population: a prospective cohort study |
| title_fullStr | The correlation between kidney volume and measured glomerular filtration rate in an Asian ADPKD population: a prospective cohort study |
| title_full_unstemmed | The correlation between kidney volume and measured glomerular filtration rate in an Asian ADPKD population: a prospective cohort study |
| title_short | The correlation between kidney volume and measured glomerular filtration rate in an Asian ADPKD population: a prospective cohort study |
| title_sort | correlation between kidney volume and measured glomerular filtration rate in an asian adpkd population a prospective cohort study |
| topic | Autosomal dominant polycystic kidney disease (ADPKD) Measured GFR (mGFR) Iohexol Total kidney volume (TKV) Ultra performance liquid chromatography (UPLC) |
| url | https://doi.org/10.1186/s12882-021-02392-0 |
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