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Tachibana Y, Takaji R, Shiroo T, Asayama Y. Deep-learning reconstruction with low-contrast media and low-kilovoltage peak for CT of the liver. Clin Radiol 2024; 79:e546-e553. [PMID: 38238148 DOI: 10.1016/j.crad.2023.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 12/13/2023] [Accepted: 12/19/2023] [Indexed: 03/09/2024]
Abstract
AIM To compare images using reduced CM, low-kVp scanning and DLR reconstruction with conventional images (no CM reduction, normal tube voltage, reconstructed with HBIR. To compare images using reduced contrast media (CM), low kilovoltage peak (kVp) scanning and deep-learning reconstruction (DLR) with conventional image quality (no CM reduction, normal tube voltage, reconstructed with hybrid-type iterative reconstruction method [HBIR protocol]). MATERIALS AND METHODS A retrospective analysis was performed on 70 patients with liver disease and three-phase dynamic imaging using computed tomography (CT) from April 2020 to March 2022 at Oita University Hospital. Of these cases, 39 were reconstructed using the DLR protocol at a tube voltage of 80 kVp and CM of 300 mg iodine/kg while 31 were imaged at a tube voltage of 120 kVp with CM of 600 mg iodine/kg and were reconstructed by the usual HBIR protocol. Images from the DLR and HBIR protocols were analysed and compared based on the contrast-to-noise ratio (CNR), signal-to-noise ratio (SNR), figure-of-merit (FOM), and visual assessment. The CT dose index (CTDI)vol and size-specific dose estimates (SSDE) were compared with respect to radiation dose. RESULTS The DLR protocol was superior, with significant differences in CNR, SNR, and FOM except hepatic parenchyma in the arterial phase. For visual assessment, the DLR protocol had better values for vascular visualisation for the portal vein, image noise, and contrast enhancement of the hepatic parenchyma. Regarding comparison of the radiation dose, the DLR protocol was superior for all values of CTDIvol and SSDE, with significant differences (p<0.01; max. 52%). CONCLUSION Protocols using DLR with reduced CM and low kVp have better image quality and lower radiation dose compared to protocols using conventional HBIR.
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Affiliation(s)
- Y Tachibana
- Graduate School of Medicine, Oita University, 1-1 Idaigaoka, Hasama-machi, Yufu, 879-5593, Japan
| | - R Takaji
- Department of Radiology, Oita University Faculty of Medicine, 1-1 Idaigaoka, Hasama-machi, Yufu, 879-5593, Japan
| | - T Shiroo
- Radiology Department, Division of Medical Technology, Oita University Hospital, 1-1 Idaigaoka, Hasama-machi, Yufu, 879-5593, Japan
| | - Y Asayama
- Department of Radiology, Oita University Faculty of Medicine, 1-1 Idaigaoka, Hasama-machi, Yufu, 879-5593, Japan.
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Nyman U, Leander P, Liss P, Sterner G, Brismar T. Absolute and relative GFR and contrast medium dose/GFR ratio: cornerstones when predicting the risk of acute kidney injury. Eur Radiol 2024; 34:612-621. [PMID: 37540321 PMCID: PMC10791854 DOI: 10.1007/s00330-023-09962-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 05/19/2023] [Accepted: 05/24/2023] [Indexed: 08/05/2023]
Abstract
Glomerular filtration rate (GFR) is considered the best overall index of kidney function in health and disease and its use is recommended to evaluate the risk of iodine contrast medium-induced acute kidney injury (CI-AKI) either as a single parameter or as a ratio between the total contrast medium dose (gram iodine) and GFR. GFR may be expressed in absolute terms (mL/min) or adjusted/indexed to body surface area, relative GFR (mL/min/1.73 m2). Absolute and relative GFR have been used interchangeably to evaluate the risk of CI-AKI, which may be confusing and a potential source of errors. Relative GFR should be used to assess the GFR category of renal function as a sign of the degree of kidney damage and sensitivity for CI-AKI. Absolute GFR represents the excretion capacity of the individual and may be used to calculate the gram-iodine/absolute GFR ratio, an index of systemic drug exposure (amount of contrast medium in the body) that relates to toxicity. It has been found to be an independent predictor of AKI following percutaneous coronary angiography and interventions but has not yet been fully validated for computed tomography (CT). Prospective studies are warranted to evaluate the optimal gram-iodine/absolute GFR ratio to predict AKI at various stages of renal function at CT. Only GFR estimation (eGFR) equations based on standardized creatinine and/or cystatin C assays should be used. eGFRcystatin C/eGFRcreatinine ratio < 0.6 indicating selective glomerular hypofiltration syndrome may have a stronger predictive power for postcontrast AKI than creatinine-based eGFR. CLINICAL RELEVANCE STATEMENT: Once the degree of kidney damage is established by estimating relative GFR (mL/min/1.73 m2), contrast dose in relation to renal excretion capacity [gram-iodine/absolute GFR (mL/min)] may be the best index to evaluate the risk of contrast-induced kidney injury. KEY POINTS: • Relative glomerular filtration rate (GFR; mL/min/1.73 m2) should be used to assess the GFR category as a sign of the degree of kidney damage and sensitivity to contrast medium-induced acute kidney injury (CI-AKI). • Absolute GFR (mL/min) is the individual's actual excretion capacity and the contrast-dose/absolute GFR ratio is a measure of systemic exposure (amount of contrast medium in the body), relates to toxicity and should be expressed in gram-iodine/absolute GFR (mL/min). • Prospective studies are warranted to evaluate the optimal contrast medium dose/GFR ratio predicting the risk of CI-AKI at CT and intra-arterial examinations.
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Affiliation(s)
- Ulf Nyman
- Department of Translational Medicine, Division of Medical Radiology, University of Lund, Malmö, Sweden.
| | - Peter Leander
- Department of Translational Medicine, Division of Medical Radiology, University of Lund, Malmö, Sweden
| | - Per Liss
- Department of Surgical Sciences, Section of Radiology, Uppsala University, Uppsala, Sweden
| | - Gunnar Sterner
- Department of Nephrology, Skåne University Hospital, Malmö, Sweden
| | - Torkel Brismar
- Division of Medical Imaging and Technology, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institute/Karolinska University Hospital, Stockholm, Sweden
- Department of Radiology, Karolinska University Hospital in Huddinge, Stockholm, Sweden
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Mehta R, Sorbo D, Ronco F, Ronco C. Key Considerations regarding the Renal Risks of Iodinated Contrast Media: The Nephrologist's Role. Cardiorenal Med 2023; 13:324-331. [PMID: 37757781 PMCID: PMC10664334 DOI: 10.1159/000533282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 06/23/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND The administration of iodinated contrast medium during diagnostic and therapeutic procedures has always been associated with the fear of causing acute kidney injury (AKI) or an exacerbation of chronic kidney disease. This has led, on the one hand, to the deterrence, when possible, of the use of contrast medium (preferring other imaging methods with the risk of loss of diagnostic power), and on the other hand, to the trialling of multiple prophylaxis protocols in an attempt to reduce the risk of kidney injury. SUMMARY A literature review on contrast-induced (CI)-AKI risk mitigation strategies was performed, focussing on the recognition of individual risk factors and on the most recent evidence regarding prophylaxis. KEY MESSAGES Nephrologists can contribute significantly in the CI-AKI context, from the early stages of the decision-making process to stratifying patients by risk, individualising prophylaxis measures based on the risk profile, and ensuring appropriate evaluation of kidney function and damage post-procedure to improve care.
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Affiliation(s)
- Ravindra Mehta
- Division of Nephrology-Hypertension University of California – San Diego, San Diego, CA, USA
| | - David Sorbo
- Nephrology, Dialysis and Transplantation Unit, St. Bortolo Hospital, ULSS8 Berica, Vicenza, Italy
| | - Federico Ronco
- Interventional Cardiology – Department of Cardiac Thoracic and Vascular Sciences Ospedale dell’Angelo – Mestre (Venice), Venice, Italy
| | - Claudio Ronco
- Nephrology, Dialysis and Transplantation Unit and International Renal Research Institute, St Bortolo Hospital, ULSS8 Berica, Vicenza, Italy
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Wu X, Yan P, Duan SB, Luo XQ, Zhang NY, Deng YH. Temporal trends of post-contrast acute kidney injury in patients with intravenous administration of iodinated contrast medium. Ren Fail 2023; 45:2251588. [PMID: 37724551 PMCID: PMC10512889 DOI: 10.1080/0886022x.2023.2251588] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 08/20/2023] [Indexed: 09/21/2023] Open
Abstract
Little is known about whether preventative practices for post-contrast acute kidney injury (PC-AKI) recommended in guidelines have been adopted in clinical practice and translated into a lower incidence of PC-AKI. The aim of this study was to examine the yearly trends in the incidence of PC-AKI, and comorbidities and care practices associated with PC-AKI in hospitalized patients who received intravenous administration of iodinated contrast medium (ICM). Adult patients receiving intravenous ICM at the Second Xiangya Hospital of Central South University in China between 2015 and 2021 were included. Temporal trends in the incidence and risk factors for PC-AKI were evaluated using logistic regression analyses with adjustments for relevant variables. The incidence of PC-AKI has declined significantly from 5.3% in 2015 to 4.1% in 2021 (p < 0.001). This decreasing trend persisted after extensive multivariable adjustments. Of the comorbidities associated with PC-AKI, the proportion of patients with congestive heart failure or hypertension increased, while the proportion of patients older than 75 years, or with an estimated glomerular filtration rate (eGFR) < 30 mL/min/1.73 m2, diabetic nephropathy, or renal stone disease decreased. Among the care practices associated with PC-AKI, the proportion of patients using nephrotoxic drugs decreased, whereas the proportion of patients receiving intravenous fluids > 1000 mL on the day of ICM administration or using iso-osmolar ICM increased. In conclusion, a declining trend in PC-AKI incidence was observed in patients receiving intravenous ICM between 2015 and 2021, which may be related to increased awareness and efforts to prevent PC-AKI.
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Affiliation(s)
- Xi Wu
- Department of Nephrology, The Second Xiangya Hospital of Central South University; Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, P.R. China
| | - Ping Yan
- Department of Nephrology, The Second Xiangya Hospital of Central South University; Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, P.R. China
| | - Shao-Bin Duan
- Department of Nephrology, The Second Xiangya Hospital of Central South University; Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, P.R. China
| | - Xiao-Qin Luo
- Department of Nephrology, The Second Xiangya Hospital of Central South University; Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, P.R. China
| | - Ning-Ya Zhang
- Information Center, The Second Xiangya Hospital of Central South University, Changsha, Hunan, P.R. China
| | - Ying-Hao Deng
- Department of Nephrology, The Second Xiangya Hospital of Central South University; Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, P.R. China
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5
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Jiang H, Li Y, Wu X, Yu H, Zhang X, Ge W, Yan S. Pharmacist-led iodinated contrast media infusion risk assessment service. Front Pharmacol 2023; 14:1161621. [PMID: 37229268 PMCID: PMC10203501 DOI: 10.3389/fphar.2023.1161621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 04/27/2023] [Indexed: 05/27/2023] Open
Abstract
Background: With the increasing development of medical imaging, the use of iodinated contrast media has become more widespread. Adverse reactions caused by iodinated contrast media have drawn much attention. Despite this, there is still a lack of unified standards for the safe infusion process of iodinated contrast media in clinical practice both domestically and internationally. Objectives: Establishing a risk management service system to better predict the risks associated with iodinated contrast media infusion, reduce the incidence of adverse reactions and minimize patient harm. Method: A prospective interventional study was carried out from April 2021 to December 2021 at Nanjing Drum Tower Hospital in China. During this study, a service system was established to manage the risks associated with the infusion of iodinated contrast media. Personalized risk identification and assessment were performed by a pharmacist-led multidisciplinary team before iodinated contrast media infusion. Early warning, prevention, and adverse reaction management were performed according to different risk levels during and after infusion. Results: A multidisciplinary team led by pharmacists was established to evaluate the risks associated with infusion of iodinated contrast media. A total of 157 patients with risk factors related to the iodinated contrast media were screened out, which prevented 22 serious adverse events and enhanced the quality of medical care. All participants expressed high satisfaction with the service. Conclusion: Through practical exploration, the pharmacist-led multidisciplinary team can provide advance warning and effectively limit the risks of adverse reactions caused by iodinated contrast media to a preventable and controllable level. This approach serves as a valuable reference for developing strategies and schemes to reduce the incidence of such reactions. Therefore, we encourage the implementation of this intervention in other areas of China.
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Affiliation(s)
- Huiyan Jiang
- Department of Pharmacy, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Yuan Li
- Department of Pharmacy, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Xiaoyan Wu
- Department of Radiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Hongming Yu
- Department of Radiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Xin Zhang
- Department of Radiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Weihong Ge
- Department of Pharmacy, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Simin Yan
- Department of Pharmacy, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
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Nyman U, Brismar T, Carlqvist J, Hellström M, Lindblom M, Lidén M, Liss P, Sterner G, Wikner F, Leander P. Revised Swedish guidelines on intravenous iodine contrast medium-induced acute kidney injury 2022: A summary. Acta Radiol 2023; 64:1859-1864. [PMID: 36749001 DOI: 10.1177/02841851231151511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The Swedish Society of Uroradiology has revised their computed tomography (CT) guidelines regarding iodine contrast media-induced acute kidney injury (CI-AKI). They are more cautious compared to the European Society of Urogenital Radiology and the American College of Radiology since the actual risk of CI-AKI remains uncertain in patients with moderate to severe kidney damage due to a lack of prospective controlled studies and mainly based on retrospective propensity score-matched studies with low-grade evidence. Another source of uncertainty is the imprecision of glomerular filtration rate (GFR) estimating equations. However, randomized hydration studies indictae an upper limit risk of CI-AKI of about 5% for outpatients with a GFR in the range of 30-44 or 45-59 mL/min/1.73m2 combined with multiple risk factors. Apart from GFR limits, the guideline also includes limits for systemic contrast medium exposure expressed in gram-iodine/GFR ratio.
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Affiliation(s)
- Ulf Nyman
- Department of Translational Medicine, Division of Medical Radiology, University of Lund, Malmö, Sweden
| | - Torkel Brismar
- Division of Medical Imaging and Technology, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institute/Karolinska University Hospital, Stockholm, Sweden.,Department of Radiology, Karolinska University Hospital in Huddinge, Stockholm, Sweden
| | - Jeanette Carlqvist
- Department of Radiology, Institute of Clinical Sciences, the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Mikael Hellström
- Department of Radiology, Institute of Clinical Sciences, the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Maria Lindblom
- Department of Radiology, Linköping University Hospital, Linköping, Sweden
| | - Mats Lidén
- Department of Radiology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Per Liss
- Department of Surgical Sciences, Section of Radiology, Uppsala University, Uppsala, Sweden
| | - Gunnar Sterner
- Department of Nephrology, Skåne University Hospital, Malmö, Sweden
| | | | - Peter Leander
- Department of Translational Medicine, Division of Medical Radiology, University of Lund, Malmö, Sweden
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Kesen S, Svensson A, Thor D, Brismar TB. Hepatic enhancement at computed tomography: is there a dependence on body weight past institutional contrast dosing limits? Acta Radiol 2023; 64:435-440. [PMID: 35266404 PMCID: PMC9905147 DOI: 10.1177/02841851221079014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Although described in product monographs, the maximum contrast media (CM) dose at computed tomography (CT) varies among institutions. PURPOSE To investigate whether an upper limit of 40 g of iodine in women and 50 g in men is sufficient or if there is a body weight (BW) dependence of mean hepatic enhancement (MHE) beyond those thresholds. MATERIAL AND METHODS At our institution, CM injection duration is fixed to 30 s and dosed 600 mg iodine/kg up to 40 g in women and 50 g in men. Pre- and post-contrast hepatic attenuation values (HU) were retrospectively obtained in 200 women and 200 men with glomerular filtration rate >45 mL/min undergoing 18-flurodeoxyglucose PET-CT (18F-FDG PET-CT) of which half weighed below and half above those dose thresholds using iodixanol 320 mg iodine/mL or iomeprol 400 mg iodine/mL. The correlation between BW and MHE was assessed by simple linear regression. RESULTS Weight range was 41-120 kg in women and 47-137 kg in men. There was no significant relationship between MHE and BW in women receiving <40 g (r = -0.05, P = 0.63) or in men receiving <50 g (r = 0.18, P = 0.07). Above those thresholds there was an inverse relationship (r = -0.64, P<0.001 in women and r = -0.30, P<0.002 in men). There was no apparent upper limit where the dependence of hepatic MHE on BW decreased. Hepatosteatosis limited MHE. CONCLUSION Adjusting CM to BW diminishes the dependence of MHE on BW. There was no apparent upper limit for the relationship between BW and MHE in heavier patients at CM-enhanced CT.
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Affiliation(s)
- Savas Kesen
- Division of Radiology, Department of Clinical Science, Intervention and Technology at Karolinska Institutet, Stockholm, Sweden,Department of Radiology, Södersjukhuset, Stockholm, Sweden,Savas Kesen, Division of Radiology, Department of Clinical Science, Intervention and Technology at Karolinska Institutet, Stockholm, Sweden and Södersjukhuset, Department of Radiology, Stockholm, Sweden.
| | - Anders Svensson
- Division of Radiology, Department of Clinical Science, Intervention and Technology at Karolinska Institutet, Stockholm, Sweden,Department of Radiology, Imaging and Physiology, Karolinska University Hospital, Stockholm, Sweden
| | - Daniel Thor
- Medical Radiation Physics and Nuclear Medicine, Imaging and Physiology, Karolinska University Hospital, Stockholm, Sweden
| | - Torkel B. Brismar
- Division of Radiology, Department of Clinical Science, Intervention and Technology at Karolinska Institutet, Stockholm, Sweden,Department of Radiology, Imaging and Physiology, Karolinska University Hospital, Stockholm, Sweden
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Oh SW, Park SY, Yong HS, Choi YH, Cha MJ, Kim TB, Lee JH, Kim SH, Lee JH, Hur GY, Hwang JY, Kim S, Kim HS, Ryu JY, Choi M, Choi CH. Korean Clinical Practice Guidelines for Adverse Reactions to Intravenous Iodinate and MRI-Gadolinium Contrast Agents: Revised Clinical Consensus and Recommendations (3rd Edition, 2022). JOURNAL OF THE KOREAN SOCIETY OF RADIOLOGY 2022; 83:254-264. [PMID: 36237922 PMCID: PMC9514440 DOI: 10.3348/jksr.2022.0024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 03/19/2022] [Indexed: 12/01/2022]
Abstract
대한영상의학회 진료지침위원회는 기존의 2016년 진료지침을 개정하여 ‘주사용 요오드화 조영제 및 MRI용 가돌리늄 조영제 유해 반응에 대한 한국 임상진료지침: 개정된 임상적 합의 및 권고안(2022년 제3판)’을 제작하였다. 대한영상의학회와 대한천식알레르기학회, 대한신장학회에세 추천 및 승인된 전문가 위원들이 함께 참여하였고, 전문가 합의 또는 체계적 문헌 고찰을 기반으로, 조영제를 사용 시 감염관리를 위한 자동주입기 및 연결선에 대한 기술과 요요드화 조영제에 대한 급성 유해반응 및 신장 유해반응에 대한 내용들을 수정 및 추가하였다. 이에 개정된 내용을 소개하고자 한다.
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Affiliation(s)
- Se Won Oh
- Department of Radiology, The Catholic University of Korea, Eunpyeong St. Mary’s Hospital, Seoul, Korea
| | - So Young Park
- Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea
| | - Hwan Seok Yong
- Department of Radiology, Cardiothoracic Division, Korea University Guro Hospital, Seoul, Korea
| | - Young Hun Choi
- Department of Radiology, Seoul National University Hospital, Seoul, Korea
| | - Min Jae Cha
- Department of Radiology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Tae Bum Kim
- Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ji Hyang Lee
- Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sae Hoon Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Jae Hyun Lee
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Gyu Young Hur
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Jae Yeon Hwang
- Department of Radiology, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, College of Medicine, Pusan National University, Yangsan, Korea
| | - Sejoong Kim
- Division of Nephrology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Hyo Sang Kim
- Division of Nephrology, Department of Internal Medicine, Asan Medical Center, University of Ulsan, Seoul, Korea
| | - Ji Young Ryu
- Division of Nephrology, Department of Internal Medicine, Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Korea
| | - Miyoung Choi
- Division of Health Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency, Seoul, Korea
| | - Chi-Hoon Choi
- Department of Radiology, Chungbuk National University Hospital, College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju, Korea
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Morisaka H, Matsuura K, Yamaguchi H, Ichikawa T, Onishi H. Effect of decreased contrast injection flow rate on aortic enhancement in 80-KV peak CT with contrast dose reduction. Acta Radiol 2021; 64:353-359. [PMID: 34923851 DOI: 10.1177/02841851211067144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Effect of decreased injection flow rate of contrast agent at the same iodine dose and delivery rate on aortic enhancement has not been clearly elucidated. PURPOSE To evaluate the effect of decreased injection flow rate of contrast agent on aortic peak enhancement in a dynamic flow phantom and on aortic enhancement in clinical dynamic 80-kVp computed tomography (CT) with contrast dose reduction. MATERIAL AND METHODS In the dynamic flow phantom experiment, the effect of a decreased injection flow rate at the same total iodine dose and delivery rate on simulated aortic peak enhancement was evaluated. In the clinical retrospective study, we searched 312 patients with renal dysfunction who underwent an 80-kVp abdominal dynamic CT with 40% reduction of contrast agent from a standard 120-kVp protocol and measured the aortic enhancement at the level of the hepatic hilum. Independent predictors for aortic enhancement were determined by multiple linear regression analysis, and after adjustment of significant predictors, independent variables for acquiring optimal aortic enhancement, ≥300 HU, were determined by multiple logistic regression analysis. RESULTS In the phantom experiment, decreased flow rate showed a significant but small descent effect (6%-9%) on simulated aortic peak enhancement. In the multiple linear regression analysis, only age was an independent predictor of aortic enhancement; there was no independent predictor for optimal age-adjusted aortic enhancement of ≥300 HU. CONCLUSIONS Decreased injection flow rate had a small influence on aortic enhancement in vitro but had no significant effect on the aortic enhancement in clinical dynamic 80-kVp CT.
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Affiliation(s)
- Hiroyuki Morisaka
- Department of Radiology, University of Yamanashi, Chuo, Yamanashi, Japan
- Diagnostic Radiology, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan
| | - Koichiro Matsuura
- Diagnostic Radiology, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan
| | - Haruomi Yamaguchi
- Department of Radiology, Graduate School of Medicine, University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Tomoaki Ichikawa
- Department of Diagnostic Radiology and Nuclear Medicine, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Hiroshi Onishi
- Department of Radiology, University of Yamanashi, Chuo, Yamanashi, Japan
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Butt T, Lehti L, Apelqvist J, Gottsäter A, Acosta S. Contrast-Associated Acute Kidney Injury in Patients with and without Diabetes Mellitus Undergoing Computed Tomography Angiography and Local Thrombolysis for Acute Lower Limb Ischemia. Vasc Endovascular Surg 2021; 56:151-157. [PMID: 34670450 PMCID: PMC8796150 DOI: 10.1177/15385744211051503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
PurposeRepetitive iodinated contrast media exposure may be harmful for the kidneys. The aim of the present study was to evaluate if patients with diabetes mellitus (DM) undergoing CT angiography (CTA) and local continuous thrombolysis for acute lower limb ischemia (ALI) had an increased risk of developing contrast-associated acute kidney injury (CA-AKI) compared to patients without DM. Methods: This is a retrospective study of patients undergoing CTA and local continuous thrombolysis due to ALI between 2001 and 2018. CA-AKI was defined as a 25% increase in serum creatinine within 72 hours after latest contrast administration. Results: There was no difference (P = .30) in the frequency of CA-AKI between patients with (27.9%; n = 43) and without DM (20.6%; n = 170). Among patients with CA-AKI, patients with DM had a lower (P < .001) estimated glomerular filtration rate (eGFR) at discharge (55 ml/min/1.73 m2) than at admission (70 ml/min/1.73 m2), while no such difference was found in the group without DM (P = .20). The gram-iodine dose/eGFR ratio was higher (P < .001) in patients with CA-AKI (median 1.49, [IQR 1.34-1.81]) than in those who did not develop CA-AKI (median 1.05 [IQR 1.00-1.13]). There was a trend that gram-iodine dose/eGFR ratio (OR 1.42/standard deviation increment, 95% CI 1.00-2.02; P = .050) was associated with an increased risk of CA-AKI, after adjusting for DM, age, and gender. Conclusions: The frequency of CA-AKI was high after CTA and local continuous thrombolysis for ALI without shown increased frequency for the DM group. Among patients with CA-AKI, however, patients with DM had worse renal function at discharge than those without DM. The gram-iodine dose/eGFR ratio in these patients needs to be lower to improve renal outcomes, particularly in patients with DM.
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Affiliation(s)
- Talha Butt
- Department of Clinical Sciences, 174435Lund University, Malmo, Sweden.,Vascular Center, Department of Cardio-Thoracic Surgery and Vascular Diseases, Skåne University Hospital, Malmo, Sweden
| | - Leena Lehti
- Department of Clinical Sciences, 174435Lund University, Malmo, Sweden.,Vascular Center, Department of Cardio-Thoracic Surgery and Vascular Diseases, Skåne University Hospital, Malmo, Sweden
| | - Jan Apelqvist
- Department of Clinical Sciences, 174435Lund University, Malmo, Sweden.,Department of Endocrinology, Skåne University Hospital, Malmo, Sweden
| | - Anders Gottsäter
- Department of Clinical Sciences, 174435Lund University, Malmo, Sweden.,Vascular Center, Department of Cardio-Thoracic Surgery and Vascular Diseases, Skåne University Hospital, Malmo, Sweden
| | - Stefan Acosta
- Department of Clinical Sciences, 174435Lund University, Malmo, Sweden.,Vascular Center, Department of Cardio-Thoracic Surgery and Vascular Diseases, Skåne University Hospital, Malmo, Sweden
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11
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Oral hydration as a safe prophylactic measure to prevent post-contrast acute kidney injury in oncologic patients with chronic kidney disease (IIIb) referred for contrast-enhanced computed tomography: subanalysis of the oncological group of the NICIR study. Support Care Cancer 2021; 30:1879-1887. [PMID: 34613475 DOI: 10.1007/s00520-021-06561-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 09/08/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND T he objective of this study is to evaluate oral hydration compared to intravenous (i.v.) hydration in the prevention of post-contrast acute kidney injury (PC-AKI) in the oncologic subgroup of patients with stage IIIb chronic kidney disease (CKD) included in the NICIR study referred for elective contrast-enhanced computed tomography (CE-CT). MATERIAL AND METHODS We performed a retrospective subanalysis of the oncological subgroup (174/228 patients, 74%) from a continuous prospective database of patients included in the recently published non-inferiority NICIR study. Patients received prophylaxis against PC-AKI with either oral hydration (500 mL of water 2 h before and 2000 mL during the 24 h after CE-CT) or i.v. hydration (sodium bicarbonate (166 mmol/L) 3 mL/kg/h starting 1 h before and 1 mL/kg/h during the first hour after CE-CT). The primary outcome was to compare the proportion of PC-AKI in the first 48 to 72 h after CE-CT in the two hydration groups. Secondary outcomes were to compare persistent PC-AKI, the need for haemodialysis, and the occurrence of adverse events related to prophylaxis in each group. RESULTS Of 174 patients included in the subanalysis, 82 received oral hydration and 92 received i.v. hydration. There were no significant differences in clinical characteristics or risk factors between the two study arms. Overall the PC-AKI rate was 4.6% (8/174 patients), being 3.7% in the oral hydration arm (3/82 patients) and 5.4% (5/92 patients) in the i.v. hydration arm. The persistent PC-AKI rate was 1.2% (1/82 patients) in the oral hydration arm and 3.3% (3/92 patients) in the i.v. hydration arm. No patient required dialysis during the first month after CE-CT or had adverse effects related to the hydration regime. CONCLUSION In oncological patients with stage IIIb CKD referred for elective CE-CT, the rate of PC-AKI in those receiving oral hydration did not significantly differ from that of patients receiving i.v. hydration.
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Jin L, Jie B, Gao Y, Jiang A, Weng T, Li M. Low dose contrast media in step-and-shoot coronary angiography with third-generation dual-source computed tomography: feasibility of using 30 mL of contrast media in patients with body surface area <1.7 m 2. Quant Imaging Med Surg 2021; 11:2598-2609. [PMID: 34079726 DOI: 10.21037/qims-20-500] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background Reducing contrast media volume in coronary computed tomography angiography minimizes the risk of adverse events but may compromise diagnostic image quality. We aimed to evaluate coronary computed tomography angiography's diagnostic image quality while using 30 mL of contrast media in patients with a body surface area <1.7 m2. Methods This prospective study included patients who underwent coronary computed tomography angiography from May 2018 to June 2019. The patients were divided into a low-dose group, who received 30 mL of contrast media, and a routine-dose group, who received contrast media based on body weight. Patient characteristics, coronary computed tomography angiography results, and quantitative and qualitative image results were assessed and compared. Results In total, 103 patients with a body surface area <1.7 m2 were 53 in the low-dose group and 50 in the routine-dose group. Sex, age, body surface area, body weight, and heart rate were similar between the groups (P>0.05). A contrast media volume of 30±0 mL was used for the low-dose group, and 41.62±4.59 mL was used for the routine-dose group. The low-dose group's computed tomography values were significantly different from those of the routine-dose group (P<0.05). The radiologists demonstrated agreement regarding diagnostic image quality and accuracy (kappa =0.91 and 0.85, respectively). Conclusions Using 30 mL of contrast media for coronary computed tomography angiography in patients with a body surface area <1.7 m2 provided a suitable diagnostic image quality for coronary artery disease diagnosis. Although radiation doses were similar between the groups, the decreased contrast media volume was likely beneficial for the patients.
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Affiliation(s)
- Liang Jin
- Radiology Department, Huadong Hospital, affiliated with Fudan University, Shanghai, China
| | - Bing Jie
- Radiology Department, Shanghai Pulmonary Hospital, Affiliated with Tongji University, Shanghai, China
| | - Yiyi Gao
- Radiology Department, Huadong Hospital, affiliated with Fudan University, Shanghai, China
| | - An'qi Jiang
- Radiology Department, Huadong Hospital, affiliated with Fudan University, Shanghai, China
| | - Tingwen Weng
- Cardiology Department, Huadong Hospital, Affiliated with Fudan University, Shanghai, China
| | - Ming Li
- Radiology Department, Huadong Hospital, affiliated with Fudan University, Shanghai, China.,Institute of Functional and Molecular Medical Imaging, Fudan University, Shanghai, China
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Bjällmark A, Bazzi M, Karlsson M, Krakys E, Kihlberg J. Radiology departmental policy compliance with Swedish guidelines regarding post-contrast acute kidney injury for examinations with iodinated contrast media. Radiography (Lond) 2021; 27:1058-1063. [PMID: 34023227 DOI: 10.1016/j.radi.2021.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 04/16/2021] [Accepted: 04/20/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Guidelines concerning intravenous iodinated contrast media (CM) during computed tomography (CT) examinations are important to follow to minimize the risk for post-contrast acute kidney injury (PC-AKI). The purpose of this study was to investigate the radiology departmental policy compliance with Swedish guidelines concerning PC-AKI. METHODS In February 2020, an electronic survey was distributed to the responsible radiographer at 41 radiology departments in all university hospitals and medium-sized hospitals in Sweden. The questions focused on routines around renal functional tests, individualized contrast administration and handling of patients with diabetes mellitus taking metformin. RESULTS The response rate was 83%. Seventy-six percent (n = 26) of radiology departments calculated estimated glomerular filtration rate (eGFR) from serum creatinine prior to CM administration, but only 24% (n = 8) followed the recommendation to calculate eGFR from both serum creatinine and cystatin C. For acute/inpatients, 55% (n = 18) followed the recommendation that renal functional tests should be performed within 12 h before CM administration. For elective patients, 97% (n = 33) followed the recommendation to have eGFR newer than three months which is acceptable for patients with no history of disease that may have affected renal function. Approximately 80% of the radiology departments followed the recommendation that CM dose always should be individually adjusted to patient eGFR. Seventy-six percent (n = 26) followed the recommendation to continue with metformin at eGFR ≥ 45 ml/min. CONCLUSION Compliance with the national guidelines was high regarding routines around renal functional tests, dose adjustment of CM and metformin discontinuation. Improvements can be made in using both cystatin C and serum creatinine for eGFR calculations as well as ensuring renal function tests within 12 h for acute/inpatients with acute disease that may affect renal function. IMPLICATIONS FOR PRACTICE This study raises awareness of the importance of adhering to guidelines in healthcare. To have knowledge about the current level of compliance regarding PCI-AKI is important to maintain and develop effective clinical implementation of guidelines. The variation in practice seen in this study emphasizes the need of more effective implementation strategies to ensure adherence with best practice.
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Affiliation(s)
- A Bjällmark
- Department of Natural Science and Biomedicine, School of Health and Welfare, Jönköping University, Jönköping, Sweden.
| | - M Bazzi
- Department of Natural Science and Biomedicine, School of Health and Welfare, Jönköping University, Jönköping, Sweden
| | - M Karlsson
- Department of Radiology, Höglandssjukhuset, Eksjö, Sweden
| | - E Krakys
- Department of Radiology, Motala Hospital, Motala, Sweden
| | - J Kihlberg
- Department of Radiology in Linköping, and Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden; Center for Medical Image Science and Visualization (CMIV), Linköping University, Linköping, Sweden
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A Simple Nomogram to Predict Contrast-Induced Acute Kidney Injury in Patients with Congestive Heart Failure Undergoing Coronary Angiography. Cardiol Res Pract 2021; 2021:9614953. [PMID: 33859840 PMCID: PMC8009707 DOI: 10.1155/2021/9614953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 02/12/2021] [Accepted: 03/10/2021] [Indexed: 11/30/2022] Open
Abstract
Background Patients with congestive heart failure (CHF) are vulnerable to contrast-induced kidney injury (CI-AKI), but few prediction models are currently available. Therefore, we aimed to establish a simple nomogram for CI-AKI risk assessment for patients with CHF undergoing coronary angiography. Methods A total of 1876 consecutive patients with CHF (defined as New York Heart Association functional class II-IV or Killip class II-IV) were enrolled and randomly (2:1) assigned to a development cohort and a validation cohort. The endpoint was CI-AKI defined as serum creatinine elevation of ≥0.3 mg/dL or 50% from baseline within the first 48–72 hours following the procedure. Predictors for the simple nomogram were selected by multivariable logistic regression with a stepwise approach. The discriminative power was assessed using the area under the receiver operating characteristic (ROC) curve and was compared with the classic Mehran score in the validation cohort. Calibration was assessed using the Hosmer–Lemeshow test and 1000 bootstrap samples. Results The incidence of CI-AKI was 9.06% (170) in the total sample, 8.64% (n = 109) in the development cohort, and 9.92% (n = 61) in the validation cohort (P=0.367). The simple nomogram including four predictors (age, intra-aortic balloon pump, acute myocardial infarction, and chronic kidney disease) demonstrated a similar predictive power as the Mehran score (area under the curve: 0.80 vs. 0.75, P=0.061), as well as a well-fitted calibration curve. Conclusions The present simple nomogram including four predictors is a simple and reliable tool to identify CHF patients at risk of CI-AKI, whereas further external validations are needed.
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15
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Kopp M, Wetzl M, Geissler F, Roth JP, Wallner R, Hoefler D, Faby S, Allmendinger T, Amarteifio P, Wuest W, Cavallaro A, Uder M, May MS. Structured Digital Self-Assessment of Patient Anamnesis Prior to Computed Tomography: Performance Evaluation and Added Value. J Med Syst 2021; 45:30. [PMID: 33511485 PMCID: PMC7843739 DOI: 10.1007/s10916-020-01690-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/01/2020] [Indexed: 01/02/2023]
Abstract
The aim of this study was to evaluate the performance of a tablet-based, digitized structured self-assessment (DSSA) of patient anamnesis (PA) prior to computed tomography (CT). Of the 317 patients consecutively referred for CT, the majority (n = 294) was able to complete the tablet-based questionnaire, which consisted of 67 items covering social anamnesis, lifestyle factors (e.g., tobacco abuse), medical history (e.g., kidney diseases), current symptoms, and the usability of the system. Patients were able to mark unclear questions for a subsequent discussion with the radiologist. Critical issues for the CT examination were structured and automatically highlighted as “red flags” (RFs) in order to improve patient interaction. RFs and marked questions were highly prevalent (69.5% and 26%). Missing creatinine values (33.3%), kidney diseases (14.4%), thyroid diseases (10.6%), metformin (5.5%), claustrophobia (4.1%), allergic reactions to contrast agents (2.4%), and pathological TSH values (2.0%) were highlighted most frequently as RFs. Patient feedback regarding the comprehensibility of the questionnaire and the tablet usability was mainly positive (90.9%; 86.2%). With advanced age, however, patients provided more negative feedback for both (p = 0.007; p = 0.039). The time effort was less than 20 min for 85.1% of patients, and faster patients were significantly younger (p = 0.046). Overall, the DSSA of PA prior to CT shows a high success rate and is well accepted by most patients. RFs and marked questions were common and helped to focus patients’ interactions and reporting towards decisive aspects.
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Affiliation(s)
- M Kopp
- Departement of Radiology, University Hospital Erlangen, 91054, Erlangen, Germany.
| | - M Wetzl
- Departement of Radiology, University Hospital Erlangen, 91054, Erlangen, Germany
| | - F Geissler
- Departement of Radiology, University Hospital Erlangen, 91054, Erlangen, Germany
| | - J P Roth
- Departement of Radiology, University Hospital Erlangen, 91054, Erlangen, Germany
| | - R Wallner
- e.Bavarian Health GmbH, Erlangen, Germany.,Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
| | - D Hoefler
- e.Bavarian Health GmbH, Erlangen, Germany.,Siemens Healthcare GmbH, Forchheim, Germany
| | - S Faby
- Siemens Healthcare GmbH, Forchheim, Germany
| | | | - P Amarteifio
- Siemens Healthcare GmbH, Forchheim, Germany.,Imaging Science Institute, Erlangen, Germany
| | - W Wuest
- Departement of Radiology, University Hospital Erlangen, 91054, Erlangen, Germany.,Imaging Science Institute, Erlangen, Germany
| | - A Cavallaro
- Departement of Radiology, University Hospital Erlangen, 91054, Erlangen, Germany.,Imaging Science Institute, Erlangen, Germany
| | - M Uder
- Departement of Radiology, University Hospital Erlangen, 91054, Erlangen, Germany.,Imaging Science Institute, Erlangen, Germany
| | - M S May
- Departement of Radiology, University Hospital Erlangen, 91054, Erlangen, Germany.,Imaging Science Institute, Erlangen, Germany
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Masur S, Eisert A, Freitag M. [Metformin Therapy During Surgical Interventions and Iodinated Contrast Agent Use]. Dtsch Med Wochenschr 2021; 146:121-127. [PMID: 33465808 DOI: 10.1055/a-1241-2407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Metformin as first-line treatment in type 2 diabetes mellitus (T2 D) shows benefits in terms of reducing cardiovascular events, but the risk of a lactic acidosis as a serious adverse event especially in patients with decreased renal function is still relevant. Since the perioperative management of Metformin or its use in diagnostic procedures with contrast agents is inconsistent in literature and different in practice, the results of various guidelines are reviewed below showing the current state of evidence. Despite many guidelines, the evidence on both issues is low, as they are mainly based on consensus recommendations. The guidelines are still based on weak data and many international recommendations have clearly different statements. A fundamental problem with drugs is that expert information does specify eGFR limits for dose reduction, but not the method to be used. Depending on the formula, this can then lead to different treatment decisions. At present, it is not possible to give reliable recommendations for practice with the aim of minimising the interruption of therapy. For this reason, only a strictly conservative approach with 48-hour breaks before and after both measures can be recommended at present. For the situations mentioned in this overview, the question of the right approach has not yet been conclusively and definitely answered, therefore further studies should be carried out.
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Minimal risk of contrast-induced kidney injury in a randomly selected cohort with mildly reduced GFR. Eur Radiol 2020; 31:3248-3257. [PMID: 33155105 PMCID: PMC8043936 DOI: 10.1007/s00330-020-07429-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 10/06/2020] [Accepted: 10/14/2020] [Indexed: 12/23/2022]
Abstract
OBJECTIVES Previous large studies of contrast-induced or post-contrast acute kidney injury (CI-AKI/PC-AKI) have been observational, and mostly retrospective, often with patients undergoing non-enhanced CT as controls. This carries risk of inclusion bias that makes the true incidence of PC-AKI hard to interpret. Our aim was to determine the incidence of PC-AKI in a large, randomly selected cohort, comparing the serum creatinine (Scr) changes after contrast medium exposure with the normal intraindividual fluctuation in Scr. METHODS In this prospective study of 1009 participants (age 50-65 years, 48% females) in the Swedish CArdioPulmonary bioImage Study (SCAPIS), with estimated glomerular filtration rate (eGFR) ≥ 50 mL/min, all received standard dose intravenous iohexol at coronary CT angiography (CCTA). Two separate pre-CCTA Scr samples and a follow-up sample 2-4 days post-CCTA were obtained. Change in Scr was statistically analyzed and stratification was used in the search of possible risk factors. RESULTS Median increase of Scr post-CCTA was 0-2 μmol/L. PC-AKI was observed in 12/1009 individuals (1.2%) according to the old ESUR criteria (> 25% or > 44 μmol/L Scr increase) and 2 individuals (0.2%) when using the updated ESUR criteria (≥ 50% or ≥ 27 μmol/L Scr increase). Possible risk factors (e.g., diabetes, age, eGFR, NSAID use) did not show increased risk of developing PC-AKI. The mean effect of contrast media on Scr did not exceed the intraindividual Scr fluctuation. CONCLUSIONS Iohexol administration to a randomly selected cohort with mildly reduced eGFR is safe, and PC-AKI is very rare, occurring in only 0.2% when applying the updated ESUR criteria. KEY POINTS • Iohexol administration to a randomly selected cohort, 50-65 years old with mildly reduced eGFR, is safe and PC-AKI is very rare. • Applying the updated ESUR PC-AKI criteria resulted in fewer cases, 0.2% compared to 1.2% using the old ESUR criteria in this cohort with predominantly mild reduction of renal function. • The mean effect of CM on Scr did not exceed the intraindividual background fluctuation of Scr, regardless of potential risk factors, such as diabetes or NSAID use in our cohort of 1009 individuals.
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Li J, Xun Y, Li C, Han Y, Shen Y, Hu X, Hu D, Liu Z, Wang S, Li Z. Estimation of Renal Function Using Unenhanced Computed Tomography in Upper Urinary Tract Stones Patients. Front Med (Lausanne) 2020; 7:309. [PMID: 32719802 PMCID: PMC7347744 DOI: 10.3389/fmed.2020.00309] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 05/28/2020] [Indexed: 02/04/2023] Open
Abstract
Objectives: The aim of this study was to determine whether unenhanced computed tomography (CT) imaging can estimate differential renal function (DRF) in patients with chronic unilateral obstructive upper urinary tract stones. Materials and Methods: This was a single-center retrospective study of 76 patients. All the patients underwent unenhanced CT and nuclear renography (RG) at an interval of 4 to 6 weeks due to chronic unilateral obstructive urinary stones. Renal CT measurements (RCMs), including residual parenchymal volume (RPV) and volumetric CT texture analysis parameters, were obtained through a semiautomatic method. Percent RCMs were calculated and compared with renal function determined by RG. Results: The strongest Pearson coefficient between percent RCM and DRF was reflected by RPV (r = 0.957, P < 0.001). Combinations of RPV and other parameters did not significantly improve the correlation compared with RPV alone (r = 0.957 vs. r = 0.957, 0.957, 0.887, 0.815, and 0.956 for combination with Hounsfield unit, parenchymal voxel, skewness, kurtosis, and entropy, respectively; all P < 0.001). Percent RPV was subsequently introduced into linear regression, and the equation y = −2.66 + 1.07* × (P < 0.001) was derived to calculate predicted DRF. No statistically difference was found between predicted DRF using the equation and observed DRF according to RG (P = 0.959). Conclusion: Unenhanced CT imaging can estimate DRF in patients with chronic unilateral obstructive upper urinary tract stones, and RG might not be necessary as a conventional method in clinical.
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Affiliation(s)
- Jiali Li
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yang Xun
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cong Li
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yunfeng Han
- Department of Radiology and Nuclear Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yaqi Shen
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xuemei Hu
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Daoyu Hu
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zheng Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shaogang Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhen Li
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Sebastià C, Nicolau C, Martín de Francisco Á, Poch E, Oleaga L. Prophylaxis against postcontrast acute kidney injury (PC-AKI): Updates in the ESUR guidelines 10.0 and critical review. RADIOLOGIA 2020. [DOI: 10.1016/j.rxeng.2019.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Sebastià C, Nicolau C, Martín de Francisco Á, Poch E, Oleaga L. Profilaxis de la lesión renal aguda poscontraste (LRA-PC). Actualización según la guía clínica ESUR 10.0 y revisión crítica. RADIOLOGIA 2020; 62:292-297. [DOI: 10.1016/j.rx.2019.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 11/12/2019] [Accepted: 12/11/2019] [Indexed: 12/09/2022]
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Ronco C, Nyman U. Contrast-Enhanced CT in Patients With Kidney Disease: Some Considerations in Response to the ACR/NKF Consensus. Kidney Med 2020; 2:500. [PMID: 32775993 PMCID: PMC7406834 DOI: 10.1016/j.xkme.2020.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Affiliation(s)
- Claudio Ronco
- Department of Nephrology, Dialysis & Transplantation, International Renal Research Institute (IRRIV), San Bortolo Hospital, Vicenza, Italy
| | - Ulf Nyman
- Division of Medical Radiology, Department of Translational Medicine, University of Lund, Malmö, Sweden
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Ronco C, Nyman U. Intravenous Iodine Contrast Media in Patients with Kidney Disease: Some Considerations to the American College of Radiology and National Kidney Foundation Consensus. Radiology 2020; 296:E126. [PMID: 32452737 DOI: 10.1148/radiol.2020201387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Claudio Ronco
- Department of Nephrology Dialysis and Transplantation, International Renal Research Institute, San Bortolo Hospital, Vicenza, Italy
| | - Ulf Nyman
- Department of Translational Medicine, Division of Medical Radiology, University of Lund, Inga Marie Nilssons gata 49, Malmö 20502, Sweden
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Sharma A, Kilari S, Cai C, Simeon ML, Misra S. Increased fibrotic signaling in a murine model for intra-arterial contrast-induced acute kidney injury. Am J Physiol Renal Physiol 2020; 318:F1210-F1219. [PMID: 32200666 PMCID: PMC7294333 DOI: 10.1152/ajprenal.00004.2020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 03/03/2020] [Accepted: 03/13/2020] [Indexed: 12/16/2022] Open
Abstract
Contrast-induced acute kidney injury (CI-AKI) is a vexing problem, and more than 70 million patients undergo studies using iodinated contrast. The molecular mechanisms responsible for CI-AKI are poorly understood. The goal of the present article was to determine the role of transforming growth factor-β1 (TGF-β1)/mothers against decapentaplegic homolog (SMAD)3 and associated collagen expression in a murine model of intra-arterial CI-AKI. The murine model of CI-AKI after intra-arterial contrast agent administration was created by first performing a partial nephrectomy to induce chronic kidney disease. Twenty-eight days later, 100 μL of contrast agent [iodixanol (320 mg/mL)] or saline were administered via the carotid artery. Two days after contrast administration, compared with saline, average serum creatinine was significantly elevated (P < 0.05). In the cortex, there was a significant increase in phosphorylated SMAD3 and gene expression of TGF-β1, TGF-β receptor type I, and TGF-β receptor type II at day 2 in the contrast group compared with the saline group. Average gene expressions of connective tissue growth factor, matrix metalloproteinase-2 and -9, and collagen type I-α and type IV-α were significantly increased at 2 days after contrast administration (all P < 0.05). Moreover, there was a decrease in Ki-67 staining in the cortex, with an increase in terminal deoxynucleotidyl transferase dUTP nick-end labeling in the cortex and medulla after contrast administration (P < 0.05). In the murine intra-arterial CI-AKI model, there was increased hypoxia and TGF-β1/SMAD3 pathway activation and collagen expression, resulting in renal fibrosis. Together, these results suggest that the TGF-β1/SMAD3 pathway could be a potential target in alleviating tissue fibrosis in CI-AKI.
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MESH Headings
- Acute Kidney Injury/etiology
- Acute Kidney Injury/genetics
- Acute Kidney Injury/metabolism
- Acute Kidney Injury/pathology
- Animals
- Apoptosis
- Carotid Arteries
- Cell Hypoxia
- Cell Proliferation
- Collagen/genetics
- Collagen/metabolism
- Contrast Media/administration & dosage
- Disease Models, Animal
- Fibrosis
- Gene Expression Regulation
- Hypoxia-Inducible Factor 1, alpha Subunit/genetics
- Hypoxia-Inducible Factor 1, alpha Subunit/metabolism
- Injections, Intra-Arterial
- Kidney/metabolism
- Kidney/pathology
- Male
- Mice, Inbred C57BL
- Nephrectomy
- Phosphorylation
- Receptor, Transforming Growth Factor-beta Type I/genetics
- Receptor, Transforming Growth Factor-beta Type I/metabolism
- Receptor, Transforming Growth Factor-beta Type II/genetics
- Receptor, Transforming Growth Factor-beta Type II/metabolism
- Renal Insufficiency, Chronic/complications
- Renal Insufficiency, Chronic/genetics
- Renal Insufficiency, Chronic/metabolism
- Renal Insufficiency, Chronic/pathology
- Signal Transduction
- Smad3 Protein/metabolism
- Transforming Growth Factor beta1/genetics
- Transforming Growth Factor beta1/metabolism
- Triiodobenzoic Acids/administration & dosage
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Affiliation(s)
- Amit Sharma
- Vascular and Interventional Radiology Translational Laboratory, Department of Radiology, Mayo Clinic, Rochester, Minnesota
| | - Sreenivasulu Kilari
- Vascular and Interventional Radiology Translational Laboratory, Department of Radiology, Mayo Clinic, Rochester, Minnesota
| | - Chuanqi Cai
- Vascular and Interventional Radiology Translational Laboratory, Department of Radiology, Mayo Clinic, Rochester, Minnesota
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Michael L Simeon
- Vascular and Interventional Radiology Translational Laboratory, Department of Radiology, Mayo Clinic, Rochester, Minnesota
| | - Sanjay Misra
- Vascular and Interventional Radiology Translational Laboratory, Department of Radiology, Mayo Clinic, Rochester, Minnesota
- Department of Radiology, Mayo Clinic, Rochester, Minnesota
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota
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24
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Davenport MS, Perazella MA, Yee J, Dillman JR, Fine D, McDonald RJ, Rodby RA, Wang CL, Weinreb JC. Use of Intravenous Iodinated Contrast Media in Patients with Kidney Disease: Consensus Statements from the American College of Radiology and the National Kidney Foundation. Radiology 2020; 294:660-668. [PMID: 31961246 DOI: 10.1148/radiol.2019192094] [Citation(s) in RCA: 257] [Impact Index Per Article: 64.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Intravenous iodinated contrast media are commonly used with CT to evaluate disease and to determine treatment response. The risk of acute kidney injury (AKI) developing in patients with reduced kidney function following exposure to intravenous iodinated contrast media has been overstated. This is due primarily to historic lack of control groups sufficient to separate contrast-induced AKI (CI-AKI; ie, AKI caused by contrast media administration) from contrast-associated AKI (CA-AKI; ie, AKI coincident to contrast media administration). Although the true risk of CI-AKI remains uncertain for patients with severe kidney disease, prophylaxis with intravenous normal saline is indicated for patients who have AKI or an estimated glomerular filtration rate less than 30 mL/min/1.73 m2 who are not undergoing maintenance dialysis. In individual high-risk circumstances, prophylaxis may be considered in patients with an estimated glomerular filtration rate of 30-44 mL/min/1.73 m2 at the discretion of the ordering clinician. This article is a simultaneous joint publication in Radiology and Kidney Medicine. The articles are identical except for stylistic changes in keeping with each journal's style. Either version may be used in citing this article.
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Affiliation(s)
- Matthew S Davenport
- From the Departments of Radiology (M.S.D.) and Urology (M.S.D.), Michigan Medicine, 1500 E Medical Center Dr, B2-A209P, Ann Arbor, Mich 48109; Michigan Radiology Quality Collaborative, Ann Arbor, Mich (M.S.D.); American College of Radiology, Reston, Va (M.S.D., J.R.D., R.J.M., C.L.W., J.C.W.); National Kidney Foundation, New York, NY (M.A.P., D.F., R.A.R.); Section of Nephrology (M.A.P., J.C.W.) and Department of Radiology and Biomedical Imaging (J.C.W.), Yale University School of Medicine, New Haven, Conn; Department of Nephrology, Henry Ford Health System, Detroit, Mich (J.Y.); Department of Radiology, Cincinnati Children's Hospital Medical Center at University of Cincinnati College of Medicine, Cincinnati, Ohio (J.R.D.); Department of Nephrology, Johns Hopkins Medicine, Baltimore, Md (D.F.); Department of Radiology Mayo Clinic, Rochester, Minn (R.J.M.); Department of Nephrology, Rush University Medical Center, Chicago, Ill (R.A.R.); and Department of Radiology, University of Washington, Seattle, Wash (C.L.W.)
| | - Mark A Perazella
- From the Departments of Radiology (M.S.D.) and Urology (M.S.D.), Michigan Medicine, 1500 E Medical Center Dr, B2-A209P, Ann Arbor, Mich 48109; Michigan Radiology Quality Collaborative, Ann Arbor, Mich (M.S.D.); American College of Radiology, Reston, Va (M.S.D., J.R.D., R.J.M., C.L.W., J.C.W.); National Kidney Foundation, New York, NY (M.A.P., D.F., R.A.R.); Section of Nephrology (M.A.P., J.C.W.) and Department of Radiology and Biomedical Imaging (J.C.W.), Yale University School of Medicine, New Haven, Conn; Department of Nephrology, Henry Ford Health System, Detroit, Mich (J.Y.); Department of Radiology, Cincinnati Children's Hospital Medical Center at University of Cincinnati College of Medicine, Cincinnati, Ohio (J.R.D.); Department of Nephrology, Johns Hopkins Medicine, Baltimore, Md (D.F.); Department of Radiology Mayo Clinic, Rochester, Minn (R.J.M.); Department of Nephrology, Rush University Medical Center, Chicago, Ill (R.A.R.); and Department of Radiology, University of Washington, Seattle, Wash (C.L.W.)
| | - Jerry Yee
- From the Departments of Radiology (M.S.D.) and Urology (M.S.D.), Michigan Medicine, 1500 E Medical Center Dr, B2-A209P, Ann Arbor, Mich 48109; Michigan Radiology Quality Collaborative, Ann Arbor, Mich (M.S.D.); American College of Radiology, Reston, Va (M.S.D., J.R.D., R.J.M., C.L.W., J.C.W.); National Kidney Foundation, New York, NY (M.A.P., D.F., R.A.R.); Section of Nephrology (M.A.P., J.C.W.) and Department of Radiology and Biomedical Imaging (J.C.W.), Yale University School of Medicine, New Haven, Conn; Department of Nephrology, Henry Ford Health System, Detroit, Mich (J.Y.); Department of Radiology, Cincinnati Children's Hospital Medical Center at University of Cincinnati College of Medicine, Cincinnati, Ohio (J.R.D.); Department of Nephrology, Johns Hopkins Medicine, Baltimore, Md (D.F.); Department of Radiology Mayo Clinic, Rochester, Minn (R.J.M.); Department of Nephrology, Rush University Medical Center, Chicago, Ill (R.A.R.); and Department of Radiology, University of Washington, Seattle, Wash (C.L.W.)
| | - Jonathan R Dillman
- From the Departments of Radiology (M.S.D.) and Urology (M.S.D.), Michigan Medicine, 1500 E Medical Center Dr, B2-A209P, Ann Arbor, Mich 48109; Michigan Radiology Quality Collaborative, Ann Arbor, Mich (M.S.D.); American College of Radiology, Reston, Va (M.S.D., J.R.D., R.J.M., C.L.W., J.C.W.); National Kidney Foundation, New York, NY (M.A.P., D.F., R.A.R.); Section of Nephrology (M.A.P., J.C.W.) and Department of Radiology and Biomedical Imaging (J.C.W.), Yale University School of Medicine, New Haven, Conn; Department of Nephrology, Henry Ford Health System, Detroit, Mich (J.Y.); Department of Radiology, Cincinnati Children's Hospital Medical Center at University of Cincinnati College of Medicine, Cincinnati, Ohio (J.R.D.); Department of Nephrology, Johns Hopkins Medicine, Baltimore, Md (D.F.); Department of Radiology Mayo Clinic, Rochester, Minn (R.J.M.); Department of Nephrology, Rush University Medical Center, Chicago, Ill (R.A.R.); and Department of Radiology, University of Washington, Seattle, Wash (C.L.W.)
| | - Derek Fine
- From the Departments of Radiology (M.S.D.) and Urology (M.S.D.), Michigan Medicine, 1500 E Medical Center Dr, B2-A209P, Ann Arbor, Mich 48109; Michigan Radiology Quality Collaborative, Ann Arbor, Mich (M.S.D.); American College of Radiology, Reston, Va (M.S.D., J.R.D., R.J.M., C.L.W., J.C.W.); National Kidney Foundation, New York, NY (M.A.P., D.F., R.A.R.); Section of Nephrology (M.A.P., J.C.W.) and Department of Radiology and Biomedical Imaging (J.C.W.), Yale University School of Medicine, New Haven, Conn; Department of Nephrology, Henry Ford Health System, Detroit, Mich (J.Y.); Department of Radiology, Cincinnati Children's Hospital Medical Center at University of Cincinnati College of Medicine, Cincinnati, Ohio (J.R.D.); Department of Nephrology, Johns Hopkins Medicine, Baltimore, Md (D.F.); Department of Radiology Mayo Clinic, Rochester, Minn (R.J.M.); Department of Nephrology, Rush University Medical Center, Chicago, Ill (R.A.R.); and Department of Radiology, University of Washington, Seattle, Wash (C.L.W.)
| | - Robert J McDonald
- From the Departments of Radiology (M.S.D.) and Urology (M.S.D.), Michigan Medicine, 1500 E Medical Center Dr, B2-A209P, Ann Arbor, Mich 48109; Michigan Radiology Quality Collaborative, Ann Arbor, Mich (M.S.D.); American College of Radiology, Reston, Va (M.S.D., J.R.D., R.J.M., C.L.W., J.C.W.); National Kidney Foundation, New York, NY (M.A.P., D.F., R.A.R.); Section of Nephrology (M.A.P., J.C.W.) and Department of Radiology and Biomedical Imaging (J.C.W.), Yale University School of Medicine, New Haven, Conn; Department of Nephrology, Henry Ford Health System, Detroit, Mich (J.Y.); Department of Radiology, Cincinnati Children's Hospital Medical Center at University of Cincinnati College of Medicine, Cincinnati, Ohio (J.R.D.); Department of Nephrology, Johns Hopkins Medicine, Baltimore, Md (D.F.); Department of Radiology Mayo Clinic, Rochester, Minn (R.J.M.); Department of Nephrology, Rush University Medical Center, Chicago, Ill (R.A.R.); and Department of Radiology, University of Washington, Seattle, Wash (C.L.W.)
| | - Roger A Rodby
- From the Departments of Radiology (M.S.D.) and Urology (M.S.D.), Michigan Medicine, 1500 E Medical Center Dr, B2-A209P, Ann Arbor, Mich 48109; Michigan Radiology Quality Collaborative, Ann Arbor, Mich (M.S.D.); American College of Radiology, Reston, Va (M.S.D., J.R.D., R.J.M., C.L.W., J.C.W.); National Kidney Foundation, New York, NY (M.A.P., D.F., R.A.R.); Section of Nephrology (M.A.P., J.C.W.) and Department of Radiology and Biomedical Imaging (J.C.W.), Yale University School of Medicine, New Haven, Conn; Department of Nephrology, Henry Ford Health System, Detroit, Mich (J.Y.); Department of Radiology, Cincinnati Children's Hospital Medical Center at University of Cincinnati College of Medicine, Cincinnati, Ohio (J.R.D.); Department of Nephrology, Johns Hopkins Medicine, Baltimore, Md (D.F.); Department of Radiology Mayo Clinic, Rochester, Minn (R.J.M.); Department of Nephrology, Rush University Medical Center, Chicago, Ill (R.A.R.); and Department of Radiology, University of Washington, Seattle, Wash (C.L.W.)
| | - Carolyn L Wang
- From the Departments of Radiology (M.S.D.) and Urology (M.S.D.), Michigan Medicine, 1500 E Medical Center Dr, B2-A209P, Ann Arbor, Mich 48109; Michigan Radiology Quality Collaborative, Ann Arbor, Mich (M.S.D.); American College of Radiology, Reston, Va (M.S.D., J.R.D., R.J.M., C.L.W., J.C.W.); National Kidney Foundation, New York, NY (M.A.P., D.F., R.A.R.); Section of Nephrology (M.A.P., J.C.W.) and Department of Radiology and Biomedical Imaging (J.C.W.), Yale University School of Medicine, New Haven, Conn; Department of Nephrology, Henry Ford Health System, Detroit, Mich (J.Y.); Department of Radiology, Cincinnati Children's Hospital Medical Center at University of Cincinnati College of Medicine, Cincinnati, Ohio (J.R.D.); Department of Nephrology, Johns Hopkins Medicine, Baltimore, Md (D.F.); Department of Radiology Mayo Clinic, Rochester, Minn (R.J.M.); Department of Nephrology, Rush University Medical Center, Chicago, Ill (R.A.R.); and Department of Radiology, University of Washington, Seattle, Wash (C.L.W.)
| | - Jeffrey C Weinreb
- From the Departments of Radiology (M.S.D.) and Urology (M.S.D.), Michigan Medicine, 1500 E Medical Center Dr, B2-A209P, Ann Arbor, Mich 48109; Michigan Radiology Quality Collaborative, Ann Arbor, Mich (M.S.D.); American College of Radiology, Reston, Va (M.S.D., J.R.D., R.J.M., C.L.W., J.C.W.); National Kidney Foundation, New York, NY (M.A.P., D.F., R.A.R.); Section of Nephrology (M.A.P., J.C.W.) and Department of Radiology and Biomedical Imaging (J.C.W.), Yale University School of Medicine, New Haven, Conn; Department of Nephrology, Henry Ford Health System, Detroit, Mich (J.Y.); Department of Radiology, Cincinnati Children's Hospital Medical Center at University of Cincinnati College of Medicine, Cincinnati, Ohio (J.R.D.); Department of Nephrology, Johns Hopkins Medicine, Baltimore, Md (D.F.); Department of Radiology Mayo Clinic, Rochester, Minn (R.J.M.); Department of Nephrology, Rush University Medical Center, Chicago, Ill (R.A.R.); and Department of Radiology, University of Washington, Seattle, Wash (C.L.W.)
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25
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Post-contrast acute kidney injury in a hospitalized population: short-, mid-, and long-term outcome and risk factors for adverse events. Eur Radiol 2020; 30:3516-3527. [PMID: 32080754 PMCID: PMC7248019 DOI: 10.1007/s00330-020-06690-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/12/2020] [Accepted: 01/29/2020] [Indexed: 12/21/2022]
Abstract
Objectives To investigate the prognosis including major adverse kidney events within 30 days (MAKE30) and 90-day and 1-year adverse outcome in hospitalized patients with post-contrast acute kidney injury (PC-AKI) to identify high-risk factors. Methods This retrospective observational study included 288 PC-AKI patients selected from 277,898 patients admitted to hospitals from January 2015 to December 2015. PC-AKI was defined according to the 2018 guideline of European Society of Urogenital Radiology. Multivariable Cox regression and logistic regression analyses were used to analyze main outcome and risk factors. Results PC-AKI patients with AKI stage ≥ 2 had much higher incidence of MAKE30 than those with AKI stage 1 (RR = 7.027, 95% CI 4.918–10.039). Persistent renal dysfunction, heart failure, central nervous system failure, baseline eGFR < 60 mL/min/1.73 m2, oliguria or anuria, blood urea nitrogen ≥ 7.14 mmol/L, respiratory failure, and shock were independent risk factors of 90-day or 1-year adverse prognosis (p < 0.05). Compared with transient renal dysfunction, PC-AKI patients with persistent renal dysfunction had a higher all-cause mortality rate (RR = 3.768, 95% CI 1.612–8.810; RR = 4.106, 95% CI 1.765–9.551) as well as combined endpoints of death, chronic kidney disease, or end-stage renal disease (OR = 3.685, 95% CI 1.628–8.340; OR = 5.209, 95% CI 1.730–15.681) within 90 days or 1 year. Conclusions PC-AKI is not always a transient, benign creatininopathy, but can result in adverse outcome. AKI stage is independently correlated to MAKE30 and persistent renal dysfunction may exaggerate the risk of long-term adverse events. Key Points • PC-AKI can result in adverse outcome such as persistent renal dysfunction, dialysis, chronic kidney disease (CKD), end-stage renal disease (ESRD), or death. • AKI stage is independently correlated to MAKE30. • Persistent renal dysfunction may exaggerate the risk of long-term adverse events. Electronic supplementary material The online version of this article (10.1007/s00330-020-06690-3) contains supplementary material, which is available to authorized users.
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26
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Davenport MS, Perazella MA, Yee J, Dillman JR, Fine D, McDonald RJ, Rodby RA, Wang CL, Weinreb JC. Use of Intravenous Iodinated Contrast Media in Patients With Kidney Disease: Consensus Statements from the American College of Radiology and the National Kidney Foundation. Kidney Med 2020; 2:85-93. [PMID: 33015613 PMCID: PMC7525144 DOI: 10.1016/j.xkme.2020.01.001] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 10/08/2019] [Accepted: 11/07/2019] [Indexed: 12/15/2022] Open
Abstract
Intravenous iodinated contrast media are commonly used with CT to evaluate disease and to determine treatment response. The risk of acute kidney injury (AKI) developing in patients with reduced kidney function following exposure to intravenous iodinated contrast media has been overstated. This is due primarily to historic lack of control groups sufficient to separate contrast-induced AKI (CI-AKI; ie, AKI caused by contrast media administration) from contrast-associated AKI (CA-AKI; ie, AKI coincident to contrast media administration). Although the true risk of CI-AKI remains uncertain for patients with severe kidney disease, prophylaxis with intravenous normal saline is indicated for patients who have AKI or an estimated glomerular filtration rate less than 30 mL/min/1.73 m2 who are not undergoing maintenance dialysis. In individual high-risk circumstances, prophylaxis may be considered in patients with an estimated glomerular filtration rate of 30-44 mL/min/1.73 m2 at the discretion of the ordering clinician.
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Affiliation(s)
- Matthew S Davenport
- Department of Radiology, Michigan Medicine, Ann Arbor, MI.,Department of Urology, Michigan Medicine, Ann Arbor, MI.,Michigan Radiology Quality Collaborative, Ann Arbor, MI.,American College of Radiology, Reston, VA
| | - Mark A Perazella
- National Kidney Foundation, New York, NY.,Section of Nephrology, Yale University School of Medicine, New Haven, CT
| | - Jerry Yee
- Department of Nephrology, Henry Ford Health System, Detroit, MI
| | - Jonathan R Dillman
- American College of Radiology, Reston, VA.,Department of Radiology, Cincinnati Children's Hospital Medical Center at University of Cincinnati College of Medicine, Cincinnati, OH
| | - Derek Fine
- National Kidney Foundation, New York, NY.,Department of Nephrology, Johns Hopkins Medicine, Baltimore, MD
| | - Robert J McDonald
- American College of Radiology, Reston, VA.,Department of Radiology, Mayo Clinic, Rochester, MN
| | - Roger A Rodby
- National Kidney Foundation, New York, NY.,Department of Nephrology, Rush University Medical Center, Chicago, IL
| | - Carolyn L Wang
- American College of Radiology, Reston, VA.,Department of Radiology, University of Washington, Seattle, WA
| | - Jeffrey C Weinreb
- American College of Radiology, Reston, VA.,Section of Nephrology, Yale University School of Medicine, New Haven, CT.,Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT
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27
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Medson K, Vargas-Paris R, Nordgren-Rogberg A, Sigbergsdottir A, Nyrén S, Lindholm P. Primary diagnosis of pulmonary embolism with unenhanced MRI for patients not eligible for CTPA: Clinical outcome. Eur J Radiol Open 2019; 6:315-319. [PMID: 31692624 PMCID: PMC6804887 DOI: 10.1016/j.ejro.2019.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 08/15/2019] [Accepted: 08/16/2019] [Indexed: 12/12/2022] Open
Abstract
Purpose To follow up the clinical outcome of patients with suspected pulmonary embolism (PE), in those only imaged using unenhanced, free-breathing magnetic resonance imaging (MRI). Methods and materials Fifty-seven patients aged 29-99 years (mean 70, SD 18) that could not undergo Computed Tomography Pulmonary Angiography (CTPA) were offered alternative imaging diagnostics in parallel with ongoing methodological studies validating MRI vs CTPA. Contraindications included renal failure (n = 44), severe iodine contrast allergy (n = 10), pregnancy (n = 2) and radioactive iodine therapy (n = 1). The unenhanced MRI protocol was based on free-breathing, steady-state free precession with no cardiac or respiratory gating. Retrospective review of the electronic medical record (EMR) was made of 0-12 months post-imaging and was collected during 2012-2018. Results All 57 MRIs were of diagnostic quality and 12 pulmonary embolisms were diagnosed. Of the 57 patients, 44 were already on, or had started anticoagulation therapy due to clinical suspicion of PE. Four of the patients were put on anticoagulation after the positive MRI and 13 were taken off anticoagulation after a negative MRI report. Other diagnoses reported (considering dyspnea) were pleural effusion (n = 24), consolidation (n = 12) and pericardial effusion (n = 2). One patient had a deep vein thrombosis (DVT) within three months of our negative MRI result and then had a stroke within one year. Another patient suffered a stroke within three months of being diagnosed (by MRI) with PE and given anticoagulation as treatment. Conclusions Our method supported or altered clinical decision-making and treatment in this cohort. A diagnostic tool for PE without intravenous contrast agent or radiation is of great benefit for certain patients.
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Affiliation(s)
- Koshiar Medson
- Department of Physiology and Pharmacology, Karolinska Institutet, SE-171 77 Stockholm, Sweden.,Thoracic radiology, Imaging and Physiology, Karolinska University Hospital, SE-171 76 Stockholm, Sweden
| | - Roberto Vargas-Paris
- Department of Physiology and Pharmacology, Karolinska Institutet, SE-171 77 Stockholm, Sweden.,Abdominal Radiology, Imaging and Physiology, Karolinska University Hospital, SE-171 76 Stockholm, Sweden
| | - Anna Nordgren-Rogberg
- Department of Physiology and Pharmacology, Karolinska Institutet, SE-171 77 Stockholm, Sweden.,Thoracic radiology, Imaging and Physiology, Karolinska University Hospital, SE-171 76 Stockholm, Sweden
| | | | - Sven Nyrén
- Thoracic radiology, Imaging and Physiology, Karolinska University Hospital, SE-171 76 Stockholm, Sweden.,Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Solna (L1:00), SE-171 76 Stockholm, Sweden
| | - Peter Lindholm
- Department of Physiology and Pharmacology, Karolinska Institutet, SE-171 77 Stockholm, Sweden.,Thoracic radiology, Imaging and Physiology, Karolinska University Hospital, SE-171 76 Stockholm, Sweden
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28
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Low incidence of nephrotoxicity following intravenous administration of iodinated contrast media: a prospective study. Eur Radiol 2019; 29:3927-3934. [DOI: 10.1007/s00330-019-06147-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 02/13/2019] [Accepted: 03/08/2019] [Indexed: 12/20/2022]
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