38 results on '"Medcalf, James"'
Search Results
2. Seasonal mortality trends for hospitalised patients with acute kidney injury across England
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Wong, Esther, Peracha, Javeria, Pitcher, David, Casula, Anna, Steenkamp, Retha, Medcalf, James F, and Nitsch, Dorothea
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- 2023
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3. What data collection methods work best for COVID19 outbreak surveillance for people with end stage kidney disease? An observational cohort study using the UK Renal Registry
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Santhakumaran, Shalini, Savino, Manuela, Benoy-Deeney, Fran, Steenkamp, Retha, Medcalf, James, and Nitsch, Dorothea
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- 2023
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4. Grams ME, Sang Y, Ballew SH, et al, for the Chronic Kidney Disease Prognosis Consortium. Predicting timing of clinical outcomes in patients with chronic kidney disease and severely decreased glomerular filtration rate. Kidney Int. 2018;93:1442–1451
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Astor, Brad, Appel, Lawrence J, Levin, Adeera, Tang, Mila, Djurdjev, Ognjenka, Navaneethan, Sankar D, Jolly, Stacey E, Schold, Jesse D, Nally, Joseph V, Wheeler, David C, Emberson, Jonathan, Townend, John, Landray, Martin, Feldman, Harold I, Hsu, Chi-yuan, Lash, James P, Kalra, Philip A, Ritchie, James P, Maharajan, Raman, Middleton, Rachel J, O’Donoghue, Donal J, Eckardt, Kai-Uwe, Schneider, Markus P, Köttgen, Anna, Kronenberg, Florian, Bärthlein, Barbara, Chang, Alex R, Green, Jamie A, Kirchner, H Lester, Ho, Kevin, Marks, Angharad, Black, Corri, Prescott, Gordon J, Fluck, Nick, Nakayama, Masaaki, Miyazaki, Mariko, Yamamoto, Tae, Yamada, Wang, Angela Yee-Moon, Cheung, Sharon, Wong, Sharon, Chu, Jessie, Wu, Henry, Garg, Amit X, McArthur, Eric, Nash, Danielle M, Shalev, Varda, Chodick, Gabriel, Blankestijn, Peter J, Wetzels, Jack FM, van Zuilen, Arjan D, van den Brand, Jan A, Levey, Andrew S, Inker, Lesley A, Sarnak, Mark J, Tighiouart, Hocine, Zhang, Haitao, Stengel, Benedicte, Metzger, Marie, Flamant, Martin, Houillier, Pascal, Haymann, Jean-Philippe, Rios, Pablo G, Mazzuchi, Nelson, Gadola, Liliana, Lamadrid, Verónica, Sola, Laura, Collins, John F, Elley, C Raina, Kenealy, Timothy, Moranne, Olivier, Couchoud, Cecile, Vigneau, Cecile, Brunskill, Nigel J, Major, Rupert W, Shepherd, David, Medcalf, James F, Kovesdy, Csaba P, Kalantar-Zadeh, Kamyar, Molnar, Miklos Z, Sumida, Keiichi, Potukuchi, Praveen K, Heerspink, Hiddo JL, de Zeeuw, Dick, Brenner, Barry, Carrero, Juan Jesus, Gasparini, Alessandro, Qureshi, Abdul Rashid, Elinder, Carl-Gustaf, Visseren, Frank LJ, van der Graaf, Yolanda, Evans, Marie, Stendahl, Maria, Schön, Staffan, Segelmark, Mårten, Prütz, Karl-Göran, Naimark, David M, Tangri, Navdeep, and Mark, Patrick B
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Renal and urogenital ,Chronic Kidney Disease Prognosis Consortium ,Clinical Sciences ,Urology & Nephrology - Abstract
The Chronic Kidney Disease (CKD) Prognosis Consortium is a collaborative author of the above-mentioned article. The CKD Prognosis Consortium investigators/collaborators are as follows: • African American Study of Kidney Disease and Hypertension (AASK): Brad Astor, Lawrence J. Appel; Canadian Study of Prediction of Death, Dialysis and Interim Cardiovascular Events (CanPREDDICT): Adeera Levin, Mila Tang, Ognjenka Djurdjev; Cleveland Clinic CKD Registry Study (CCF): Sankar D. Navaneethan, Stacey E. Jolly, Jesse D. Schold, Joseph V. Nally Jr.; Chronic Renal Impairment in Birmingham (CRIB): David C. Wheeler, Jonathan Emberson, John Townend, Martin Landray; Chronic Renal Insufficiency Cohort Study (CRIC): Harold I. Feldman, Chi-yuan Hsu, James P. Lash, Lawrence J. Appel; Chronic Renal Insufficiency Standards Implementation Study (CRISIS): Philip A. Kalra, James P. Ritchie, Raman Maharajan, Rachel J. Middleton, Donal J. O'Donoghue; German Chronic Kidney Disease Study (GCKD): Kai-Uwe Eckardt, Markus P. Schneider, Anna Köttgen, Florian Kronenberg, Barbara Bärthlein; Geisinger Health System: Alex R. Chang, Jamie A. Green, H. Lester Kirchner, Kevin Ho; Grampian Laboratory Outcomes, Morbidity and Mortality Studies – 2 (GLOMMS2): Angharad Marks, Corri Black, Gordon J. Prescott, Nick Fluck; Gonryo Study: Masaaki Nakayama, Mariko Miyazaki, Tae Yamamoto, Gen Yamada; Hong Kong CKD Studies: Angela Yee-Moon Wang, Sharon Cheung, Sharon Wong, Jessie Chu, Henry Wu; Ontario Institute for Clinical Evaluative Sciences, Provincial Kidney, Dialysis and Transplantation program (ICES KDT): Amit X. Garg, Eric McArthur, Danielle M. Nash; Maccabi Health System: Varda Shalev, Gabriel Chodick; Multifactorial Approach and Superior Treatment Efficacy in Renal Patients with the Aid of a Nurse Practitioner (MASTERPLAN): Peter J. Blankestijn, Jack F.M. Wetzels, Arjan D. van Zuilen, Jan A. van den Brand; Modification of Diet in Renal Disease Study (MDRD): Andrew S. Levey, Lesley A. Inker, Mark J. Sarnak, Hocine Tighiouart; Nanjing CKD Network Cohort Study (Nanjing CKD): Haitao Zhang; NephroTest Study (NephroTest): Benedicte Stengel, Marie Metzger, Martin Flamant, Pascal Houillier, Jean-Philippe Haymann; National Renal Healthcare Program – Uruguay (NRHP-URU): Pablo G. Rios, Nelson Mazzuchi, Liliana Gadola, Verónica Lamadrid, Laura Sola; New Zealand Diabetes Cohort Study (NZDCS): John F. Collins, C. Raina Elley, Timothy Kenealy; Parcours de Soins des Personnes Agées (PSPA): Olivier Moranne, Cecile Couchoud, Cecile Vigneau; Primary-Secondary Care Partnership to Prevent Adverse Outcomes in Chronic Kidney Disease (PSP CKD): Nigel J. Brunskill, Rupert W. Major, David Shepherd, James F. Medcalf; Racial and Cardiovascular Risk Anomalies in CKD Cohort (RCAV): Csaba P. Kovesdy, Kamyar Kalantar-Zadeh, Miklos Z. Molnar, Keiichi Sumida, Praveen K. Potukuchi; Reduction of Endpoints in Non-insulin Dependent Diabetes Mellitus with the Angiotensin II Antagonist Losartan (RENAAL): Hiddo J.L. Heerspink, Dick de Zeeuw, Barry Brenner; Stockholm CREAtinine Measurements Cohort (SCREAM): Juan Jesus Carrero, Alessandro Gasparini, Abdul Rashid Qureshi, Carl-Gustaf Elinder; Second Manifestations of ARTerial Disease Study (SMART): Frank L.J. Visseren, Yolanda van der Graaf; Swedish Renal Registry CKD Cohort (SRR CKD): Marie Evans, Maria Stendahl, Staffan Schön, Mårten Segelmark, Karl-Göran Prütz; Sunnybrook Cohort: David M. Naimark, Navdeep Tangri; West of Scotland CKD Study: Patrick B. Mark, Jamie P. Traynor, Colin C. Geddes, Peter C. Thomson.• CKD Prognosis Consortium Steering Committee: Alex R. Chang, Josef Coresh (Chair), Ron T. Gansevoort, Morgan E. Grams, Anna Köttgen, Andrew S. Levey, Kunihiro Matsushita, Mark Woodward, Luxia Zhang.• CKD Prognosis Consortium Data Coordinating Center: Shoshana H. Ballew (Assistant Project Director), Jingsha Chen (Programmer), Josef Coresh (Principal Investigator), Morgan E. Grams (Director of Nephrology Initiatives), Lucia Kwak (Programmer), Kunihiro Matsushita (Director), Yingying Sang (Lead Programmer), Aditya Surapaneni (Programmer), Mark Woodward (Senior Statistician).• Kidney Disease Improving Global Outcomes (KDIGO) Controversies Conference on Prognosis and Optimal Management of Patients with Advanced CKD: Kai-Uwe Eckardt (Conference Co-Chair), Brenda R. Hemmelgarn (Conference Co-Chair), David C. Wheeler (KDIGO Co-Chair), Wolfgang C. Winkelmayer (KDIGO Co-Chair), John Davis (CEO), Danielle Green (Managing Director), Michael Cheung (Chief Scientific Officer), Tanya Green (Communications Director), Melissa McMahan (Programs Director).
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- 2018
5. Evans M, Grams ME, Sang Y, et al., for the Chronic Kidney Disease Prognosis Consortium. Risk factors for prognosis in patients with severely decreased GFR. Kidney Int Rep. 2018;3:625–637
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Astor, Brad, Appel, Lawrence J, Levin, Adeera, Djurdjev, Ognjenka, Tang, Mila, Navaneethan, Sankar D, Jolly, Stacey E, Schold, Jesse D, Nally, Joseph V, Wheeler, David C, Emberson, Jonathan, Townend, John, Landray, Martin, Feldman, Harold I, Hsu, Chi-yuan, Lash, James P, Kalra, Philip A, Ritchie, James P, Maharajan, Raman, Alderson, Helen, Lane, Beverly, Eckardt, Kai-Uwe, Schneider, Markus P, Köttgen, Anna, Kronenberg, Florian, Bärthlein, Barbara, Chang, Alex R, Green, Jamie A, Kirchner, H Lester, Ho, Kevin, Marks, Angharad, Black, Corri, Prescott, Gordon J, Fluck, Nick, Nakayama, Masaaki, Miyazaki, Mariko, Yamamoto, Tae, Yamada, Wang, Angela Yee-Moon, Cheung, Sharon, Wong, Sharon, Chu, Jessie, Wu, Henry, Shalev, Varda, Chodick, Gabriel, Blankestijn, Peter J, Wetzels, Jack FM, van Zuilen, Arjan D, van den Brand, Jan A, Levey, Andrew S, Inker, Lesley A, Sarnak, Mark J, Tighiouart, Hocine, Zhang, Haitao, Stengel, Benedicte, Rios, Pablo G, Mazzuchi, Nelson, Gadola, Liliana, Lamadrid, Verónica, Sola, Laura, Collins, John F, Elley, C Raina, Kenealy, Timothy, Moranne, Olivier, Couchoud, Cecile, Vigneau, Cecile, Brunskill, Nigel J, Major, Rupert W, Shepherd, David, Medcalf, James F, Kovesdy, Csaba P, Kalantar-Zadeh, Kamyar, Molnar, Miklos Z, Sumida, Keiichi, Potukuchi, Praveen K, Heerspink, Hiddo JL, de Zeeuw, Dick, Brenner, Barry, Carrero, Juan Jesus, Barany, Peter, Qureshi, Abdul Rashid, Elinder, Carl-Gustaf, Visseren, Frank LJ, van der Graaf, Yolanda, Evans, Marie, Stendahl, Maria, Schön, Staffan, Segelmark, Mårten, Prütz, Karl-Göran, Naimark, David M, Tangri, Navdeep, Mark, Patrick B, Traynor, Jamie P, Geddes, Colin C, Thomson, Peter C, and Coresh, Josef
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Biomedical and Clinical Sciences ,Clinical Sciences ,Renal and urogenital ,Good Health and Well Being ,Chronic Kidney Disease Prognosis Consortium ,Biomedical and clinical sciences ,Health sciences - Abstract
[This corrects the article DOI: 10.1016/j.ekir.2018.01.002.].
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- 2018
6. Serum potassium and adverse outcomes across the range of kidney function: a CKD Prognosis Consortium meta-analysis.
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Kovesdy, Csaba P, Matsushita, Kunihiro, Sang, Yingying, Brunskill, Nigel J, Carrero, Juan J, Chodick, Gabriel, Hasegawa, Takeshi, Heerspink, Hiddo L, Hirayama, Atsushi, Landman, Gijs WD, Levin, Adeera, Nitsch, Dorothea, Wheeler, David C, Coresh, Josef, Hallan, Stein I, Shalev, Varda, Grams, Morgan E, Astor, Brad, Appel, Larry, Greene, Tom, Chen, Teresa, Chalmers, John, Woodward, Mark, Arima, Hisatomi, Perkovic, Vlado, Djurdjev, Ognjenka, Zhang, Luxia, Liu, Lisheng, Zhao, Minghui, Wang, Fang, Wang, Jinwei, Tang, Mila, Iso, Hiroyasu, Yamagishi, Kazumasa, Umesawa, Mitsumasa, Muraki, Isao, Fukagawa, Masafumi, Maruyama, Shoichi, Hamano, Takayuki, Fujii, Naohiko, Wheeler, David, Emberson, John, Townend, John, Landray, Martin, Green, Jamie, Kirchner, H Lester, Chang, Alex R, Cirillo, Massimo, Jee, Sun Ha, Kimm, Heejin, Mok, Yejin, Wetzels, Jack FM, Blankestijn, Peter J, van Zuilen, Arjan D, Bots, M, Sarnak, Mark, Inker, Lesley, Roderick, Paul, Fletcher, Astrid, Bottinger, Erwin, Nadkarni, Girish N, Ellis, Stephen B, Nadukuru, Rajiv, Brunskill, Nigel, Major, Rupert, Shepherd, David, Medcalf, James, Gansevoort, Ron T, Bakker, Stephan JL, Heerspink, Hiddo J Lambers, Jassal, Simerjot K, Bergstrom, Jaclyn, Ix, Joachim H, Barrett-Connor, Elizabeth, Kovesdy, Csaba, Kalantar-Zadeh, Kamyar, de Zeeuw, Dick, Brenner, Barry, Gasparini, Alessandro, Elinder, Carl-Gustaf, Barany, Peter, Evans, Marie, Segelmark, Mårten, Stendahl, Maria, Schön, Staffan, Tangri, Navdeep, Sud, Maneesh, Naimark, David, Wen, Chi-Pang, and Tsao, Chwen-Keng
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Kidney Disease ,Prevention ,Clinical Research ,Evaluation of treatments and therapeutic interventions ,6.1 Pharmaceuticals ,Renal and urogenital ,Cardiovascular ,Good Health and Well Being ,Adult ,Aged ,Albuminuria ,Cardiovascular Diseases ,Cause of Death ,Comorbidity ,Glomerular Filtration Rate ,Humans ,Hyperkalemia ,Hypokalemia ,Kidney Failure ,Chronic ,Middle Aged ,Prognosis ,Renal Insufficiency ,Chronic ,Risk Factors ,Potassium ,Estimated glomerular filtration rate ,End-stage renal disease ,Mortality ,CKD Prognosis Consortium ,Cardiorespiratory Medicine and Haematology ,Clinical Sciences ,Cardiovascular System & Hematology - Abstract
AimsBoth hypo- and hyperkalaemia can have immediate deleterious physiological effects, and less is known about long-term risks. The objective was to determine the risks of all-cause mortality, cardiovascular mortality, and end-stage renal disease associated with potassium levels across the range of kidney function and evaluate for consistency across cohorts in a global consortium.Methods and resultsWe performed an individual-level data meta-analysis of 27 international cohorts [10 general population, 7 high cardiovascular risk, and 10 chronic kidney disease (CKD)] in the CKD Prognosis Consortium. We used Cox regression followed by random-effects meta-analysis to assess the relationship between baseline potassium and adverse outcomes, adjusted for demographic and clinical characteristics, overall and across strata of estimated glomerular filtration rate (eGFR) and albuminuria. We included 1 217 986 participants followed up for a mean of 6.9 years. The average age was 55 ± 16 years, average eGFR was 83 ± 23 mL/min/1.73 m2, and 17% had moderate- to-severe increased albuminuria levels. The mean baseline potassium was 4.2 ± 0.4 mmol/L. The risk of serum potassium of >5.5 mmol/L was related to lower eGFR and higher albuminuria. The risk relationship between potassium levels and adverse outcomes was U-shaped, with the lowest risk at serum potassium of 4-4.5 mmol/L. Compared with a reference of 4.2 mmol/L, the adjusted hazard ratio for all-cause mortality was 1.22 [95% confidence interval (CI) 1.15-1.29] at 5.5 mmol/L and 1.49 (95% CI 1.26-1.76) at 3.0 mmol/L. Risks were similar by eGFR, albuminuria, renin-angiotensin-aldosterone system inhibitor use, and across cohorts.ConclusionsOutpatient potassium levels both above and below the normal range are consistently associated with adverse outcomes, with similar risk relationships across eGFR and albuminuria.
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- 2018
7. Change in albuminuria and subsequent risk of end-stage kidney disease: an individual participant-level consortium meta-analysis of observational studies
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Appel, Lawrence J, Greene, Tom, Chen, Teresa K, Chalmers, John, Arima, Hisatomi, Perkovic, Vlado, Levin, Adeera, Djurdjev, Ognjenka, Tang, Mila, Nally, Joseph, Navaneethan, Sankar D, Schold, Jesse D, Weldegiorgis, Misghina, Herrington, William G, Smith, Margaret, Hsu, C Yenchih, Hwang, Shih-Jen, Chang, Alex R, Kirchner, H. Lester, Green, Jamie A, Ho, Kevin, Marks, Angharad, Prescott, Gordon, Clark, Laura E, Fluck, Nick, Shalev, Varda, Chodick, Gabriel, Blankestijn, Peter J, Van Zuilen, Arjan, Van den Brand, Jan A, Sarnak, Mark J, Bottinger, Erwin, Nadkarni, Girish N, Ellis, Stephen G, Nadukuru, Rajiv, Metzger, Marie, Flamant, Martin, Houillier, Pascal, Haymann, Jean-Philippe, Froissart, Marc, Kenealy, Timothy, Elley, Raina C, Collins, John F, Drury, Paul L, Cuddeback, John K, Ciemins, Elizabeth L, Stempniewicz, Rich, Nelson, Robert G, Knowler, William C, Bakker, Stephen J, Major, Rupert W, Medcalf, James F, Shepherd, David, Barrett-Connor, Elizabeth, Bergstrom, Jaclyn, Ix, Joachim H, Molnar, Miklos Z, Sumida, Keiichi, de Zeeuw, Dick, Brenner, Barry, Qureshi, Abdul R, Elinder, Carl-Gustaf, Runesson, Bjorn, Evans, Marie, Segelmark, Marten, Stendahl, Maria, Schön, Staffan, Naimark, David M, Tangri, Navdeep, Sud, Maneesh, Hirayama, Atsushi, Ichikawa, Kazunobu, Bilo, Henk JG, Landman, Gijs WD, Van Hateren, Kornelis JJ, Kleefstra, Nanne, Hallan, Stein I, Ballew, Shoshana H, Chen, Jingsha, Kwak, Lucia, Surapaneni, Aditya, Parving, Hans-Henrik, Rodby, Roger A., Rohde, Richard D, Lewis, Julia B, Lewis, Edmund, Perrone, Ronald D, Abebe, Kaleab Z, Hou, Fan F, Xie, Di, Hunsicker, Lawrence G, Imai, Enyu, Kobayashi, Fumiaki, Makino, Hirofumi, Ito, Sadayoshi, Remuzzi, Giuseppe, Ruggenenti, Piero, Eckardt, Kai-Uwe, Gudmundsdottir, Hrefna, Maciulaitis, Romaldas, Manley, Tom, Smith, Kimberly, Stockbridge, Norman, Thompson, Aliza, Vetter, Thorsten, Willis, Kerry, Zhang, Luxia, Coresh, Josef, Heerspink, Hiddo J L, Sang, Yingying, Matsushita, Kunihiro, Arnlov, Johan, Astor, Brad C, Black, Corri, Brunskill, Nigel J, Carrero, Juan-Jesus, Feldman, Harold I, Fox, Caroline S, Inker, Lesley A, Ishani, Areef, Jassal, Simerjot, Konta, Tsuneo, Polkinghorne, Kevan, Romundstad, Solfrid, Solbu, Marit D, Stempniewicz, Nikita, Stengel, Benedicte, Tonelli, Marcello, Umesawa, Mitsumasa, Waikar, Sushrut S, Wen, Chi-Pang, Wetzels, Jack F M, Woodward, Mark, Grams, Morgan E, Kovesdy, Csaba P, Levey, Andrew S, and Gansevoort, Ron T
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- 2019
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8. Relationship of Estimated GFR and Albuminuria to Concurrent Laboratory Abnormalities: An Individual Participant Data Meta-analysis in a Global Consortium
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Astor, Brad, Appel, Larry, Greene, Tom, Chen, Teresa, Chalmers, John, Woodward, Mark, Arima, Hisatomi, Perkovic, Vlado, Yatsuya, Hiroshi, Tamakoshi, Koji, Li, Yuanying, Hirakawa, Yoshihisa, Coresh, Josef, Matsushita, Kunihiro, Grams, Morgan, Sang, Yingying, Polkinghorne, Kevan, Chadban, Steven, Atkins, Robert, Levin, Adeera, Djurdjev, Ognjenka, Zhang, Luxia, Liu, Lisheng, Zhao, Minghui, Wang, Fang, Wang, Jinwei, Schaeffner, Elke, Ebert, Natalie, Martus, Peter, Tang, Mila, Heine, Gunnar, Emrich, Insa, Seiler, Sarah, Zawada, Adam, Nally, Joseph, Navaneethan, Sankar, Schold, Jesse, Shlipak, Michael, Sarnak, Mark, Katz, Ronit, Hiramoto, Jade, Iso, Hiroyasu, Yamagishi, Kazumasa, Umesawa, Mitsumasa, Muraki, Isao, Fukagawa, Masafumi, Maruyama, Shoichi, Hamano, Takayuki, Hasegawa, Takeshi, Fujii, Naohiko, Wheeler, David, Emberson, John, Townend, John, Landray, Martin, Brenner, Hermann, Schöttker, Ben, Saum, Kai-Uwe, Rothenbacher, Dietrich, Fox, Caroline, Hwang, Shih-Jen, Köttgen, Anna, Kronenberg, Florian, Schneider, Markus P., Eckardt, Kai-Uwe, Green, Jamie, Kirchner, H Lester, Chang, Alex R., Ho, Kevin, Ito, Sadayoshi, Miyazaki, Mariko, Nakayama, Masaaki, Yamada, Gen, Cirillo, Massimo, Irie, Fujiko, Sairenchi, Toshimi, Ishikawa, Shizukiyo, Yano, Yuichiro, Kotani, Kazuhiko, Nakamura, Takeshi, Jee, Sun Ha, Kimm, Heejin, Mok, Yejin, Chodick, Gabriel, Shalev, Varda, Wetzels, Jack F.M., Blankestijn, Peter J., van Zuilen, Arjan D., van den Brand, Jan, Inker, Lesley, Peralta, Carmen, Kollerits, Barbara, Ritz, Eberhard, Nitsch, Dorothea, Roderick, Paul, Fletcher, Astrid, Bottinger, Erwin, Nadkarni, Girish N., Ellis, Stephen B., Nadukuru, Rajiv, Ueshima, Hirotsugu, Okayama, Akira, Miura, Katsuyuki, Tanaka, Sachiko, Okamura, Tomonori, Kadota, Aya, Kenealy, Timothy, Elley, C Raina, Collins, John F., Drury, Paul L., Ohkubo, Takayoshi, Asayama, Kei, Metoki, Hirohito, Kikuya, Masahiro, Nelson, Robert G., Knowler, William C., Gansevoort, Ron T., Bakker, Stephan JL., Hak, Eelco, Heerspink, Hiddo J.L., Brunskill, Nigel, Major, Rupert, Shepherd, David, Medcalf, James, Jassal, Simerjot K., Bergstrom, Jaclyn, Ix, Joachim H., Barrett-Connor, Elizabeth, Kovesdy, Csaba, Kalantar-Zadeh, Kamyar, Sumida, Keiichi, Gutierrez, Orlando M., Muntner, Paul, Warnock, David, McClellan, William, de Zeeuw, Dick, Brenner, Barry, Sedaghat, Sanaz, Ikram, M Arfan, Hoorn, Ewout J., Dehghan, Abbas, Carrero, Juan J., Gasparini, Alessandro, Wettermark, Björn, Elinder, Carl-Gustaf, Wong, Tien Yin, Sabanayagam, Charumathi, Cheng, Ching-Yu, Visseren, Frank L.J., Evans, Marie, Segelmark, Mårten, Stendahl, Maria, Schön, Staffan, Tangri, Navdeep, Sud, Maneesh, Naimark, David, Wen, Chi-Pang, Tsao, Chwen-Keng, Tsai, Min-Kugng, Chen, Chien-Hua, Konta, Tsuneo, Hirayama, Atsushi, Ichikawa, Kazunobu, Lannfelt, Lars, Larsson, Anders, Ärnlöv, Johan, Bilo, Henk J.G., Landman, Gijs W.D., van Hateren, Kornelis J.J., Kleefstra, Nanne, Coresh (Chair, Josef, Grams, Morgan E., Hallan, Stein, Kovesdy, Csaba P., Levey, Andrew S., Ballew, Shoshana H., Chen, Jingsha, Kwak, Lucia, Surapaneni, Aditya, Inker, Lesley A., Heine, Gunnar H., Landray, Martin J., Peralta, Carmen A., Shlipak, Michael G., and Hallan, Stein I.
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- 2019
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9. Correction: The Kidney Failure Risk Equation for prediction of end stage renal disease in UK primary care: An external validation and clinical impact projection cohort study
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Major, Rupert W., Shepherd, David, Medcalf, James F., Xu, Gang, Gray, Laura J., and Brunskill, Nigel J.
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Chronic kidney failure - Abstract
Author(s): Rupert W. Major, David Shepherd, James F. Medcalf, Gang Xu, Laura J. Gray, Nigel J. Brunskill Following the review of the open source data file mentioned in the Data [...]
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- 2020
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10. National recommendations to standardise acute kidney injury detection and alerting.
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Marrington, Rachel, Barton, Anna L, Yates, Alexandra, McKane, William, Selby, Nicholas M, Murray, Jonathan S, Medcalf, James F, MacKenzie, Finlay, and Myers, Martin
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ACUTE kidney failure ,WARNINGS ,LABORATORY management - Abstract
Background: National Health Service England issued a Patient Safety Alert in 2014 mandating all acute Trusts in England to implement Acute Kidney Injury (AKI) warning stage results and to do so using a standardised algorithm. In 2021, the Renal and Pathology Getting It Right First Time (GIRFT) teams found significant variation in AKI reporting across the UK. A survey was designed to capture information on the entire AKI detection and alerting process to investigate the potential sources of this unwarranted variation. Methods: In August 2021, an online survey consisting of 54 questions was made available to all UK laboratories. The questions covered creatinine assays, laboratory information management systems (LIMS), the AKI algorithm and AKI reporting. Results: We received 101 responses from laboratories. Data were reviewed for England only – 91 laboratories. Findings included that 72% used enzymatic creatinine. In addition, 7 manufacturer-analytical platforms, 15 different LIMS and a wide range of creatinine reference ranges were in use. In 68% of laboratories, the AKI algorithm was installed by the LIMS provider. Marked variation was found in the minimum age of AKI reporting with only 18% starting at the recommended 1 month/28-days. Some 89% phoned all new AKI2s and AKI3s, as per AKI guidance while 76% provided comments/hyperlinks in reports. Conclusions: The national survey has identified laboratory practices that potentially contribute to unwarranted variation in the reporting of AKI in the England. This has formed the basis for improvement work to remedy the situation, including national recommendations, included within this article. [ABSTRACT FROM AUTHOR]
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- 2023
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11. End-of-life care for people with chronic kidney disease: cause of death, place of death and hospital costs
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Kerr, Marion, Matthews, Beverley, Medcalf, James F., and OʼDonoghue, Donal
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- 2017
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12. The Kidney Failure Risk Equation for prediction of end stage renal disease in UK primary care: An external validation and clinical impact projection cohort study
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Major, Rupert W., Shepherd, David, Medcalf, James F., Xu, Gang, Gray, Laura J., and Brunskill, Nigel J.
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Albumin ,Medical research ,Organ transplantation ,Epidemiology ,Chronic kidney failure ,Kidney diseases ,Kidney failure - Abstract
Author(s): Rupert W. Major 1,2,3,*, David Shepherd 1, James F. Medcalf 2, Gang Xu 2,4, Laura J. Gray 1, Nigel J. Brunskill 2,4 Introduction Chronic kidney disease (CKD) is a [...], Background The Kidney Failure Risk Equation (KFRE) uses the 4 variables of age, sex, urine albumin-to-creatinine ratio (ACR), and estimated glomerular filtration rate (eGFR) in individuals with chronic kidney disease (CKD) to predict the risk of end stage renal disease (ESRD), i.e., the need for dialysis or a kidney transplant, within 2 and 5 years. Currently, national guideline writers in the UK and other countries are evaluating the role of the KFRE in renal referrals from primary care to secondary care, but the KFRE has had limited external validation in primary care. The study's objectives were therefore to externally validate the KFRE's prediction of ESRD events in primary care, perform model recalibration if necessary, and assess its projected impact on referral rates to secondary care renal services. Methods and findings Individuals with 2 or more Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) eGFR values < 60 ml/min/1.73 m.sup.2 more than 90 days apart and a urine ACR or protein-to-creatinine ratio measurement between 1 December 2004 and 1 November 2016 were included in the cohort. The cohort included 35,539 (5.6%) individuals (57.5% female, mean age 75.9 years, median CKD-EPI eGFR 51 ml/min/1.73 m.sup.2, median ACR 3.2 mg/mmol) from a total adult practice population of 630,504. Overall, 176 (0.50%) and 429 (1.21%) ESRD events occurred within 2 and 5 years, respectively. Median length of follow-up was 4.7 years (IQR 2.8 to 6.6). Model discrimination was excellent for both 2-year (C-statistic 0.932, 95% CI 0.909 to 0.954) and 5-year (C-statistic 0.924, 95% 0.909 to 0.938) ESRD prediction. The KFRE overpredicted risk in lower ( Conclusions In this cohort, the recalibrated KFRE accurately predicted the risk of ESRD at 2 and 5 years in primary care. Its introduction into primary care for referrals to secondary care renal services may lead to a reduction in unnecessary referrals, and earlier referrals in those who go on to develop ESRD. However, further validation studies in more diverse cohorts of the clinical impact projections and suggested referral criteria are required before the latter can be clinically implemented.
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- 2019
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13. Epidemiology of childhood acute kidney injury in England using e-alerts.
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Plumb, Lucy, Casula, Anna, Sinha, Manish D, Inward, Carol D, Marks, Stephen D, Medcalf, James, and Nitsch, Dorothea
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ACUTE kidney failure ,HOSPITAL care of children ,CRITICAL care medicine ,AGE groups ,EPIDEMIOLOGY - Abstract
Background Few studies describe the epidemiology of childhood acute kidney injury (AKI) nationally. Laboratories in England are required to issue electronic (e-)alerts for AKI based on serum creatinine changes. This study describes a national cohort of children who received an AKI alert and their clinical course. Methods A cross-section of AKI episodes from 2017 are described. Hospital record linkage enabled description of AKI-associated hospitalizations including length of stay (LOS) and critical care requirement. Risk associations with critical care (hospitalized cohort) and 30-day mortality (total cohort) were examined using multivariable logistic regression. Results In 2017, 7788 children (52% male, median age 4.4 years, interquartile range 0.9–11.5 years) experienced 8927 AKI episodes; 8% occurred during birth admissions. Of 5582 children with hospitalized AKI, 25% required critical care. In children experiencing an AKI episode unrelated to their birth admission, Asian ethnicity, young (<1 year) or old (16–<18 years) age (reference 1–<5 years), and high peak AKI stage had higher odds of critical care. LOS was higher with peak AKI stage, irrespective of critical care admission. Overall, 30-day mortality rate was 3% (n = 251); youngest and oldest age groups, hospital-acquired AKI, higher peak stage and critical care requirement had higher odds of death. For children experiencing AKI alerts during their birth admission, no association was seen between higher peak AKI stage and critical care admission. Conclusions Risk associations for adverse AKI outcomes differed among children according to AKI type and whether hospitalization was related to birth. Understanding the factors driving AKI development and progression may help inform interventions to minimize morbidity. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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14. Impact of the COVID-19 Pandemic on Training, Morale and Well-Being Among the UK Renal Workforce
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Beckwith, Hannah, Nimmo, Ailish, Savino, Manuela, Selvaskandan, Haresh, Graham-Brown, Matthew, Medcalf, James, and Cockwell, Paul
- Published
- 2021
- Full Text
- View/download PDF
15. Centre variation in mortality following post-hospitalization acute kidney injury: analysis of a large national cohort.
- Author
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Peracha, Javeria, Pitcher, David, Santhakumaran, Shalini, Steenkamp, Retha, Fotheringham, James, Day, Jamie, Medcalf, James F, Nitsch, Dorothea, Lipkin, Graham W, and McKane, William S
- Subjects
ACUTE kidney failure ,MORTALITY ,HOSPITAL mortality ,CONFIDENCE intervals ,DEATH rate ,TRUST - Abstract
Background Routine monitoring of outcomes for patients with acute kidney injury (AKI) is important to drive ongoing quality improvement in patient care. In this study we describe the development of a case mix-adjusted 30-day mortality indicator for patients with post-hospitalization AKI (PH-AKI) across England to facilitate identification of any unwarranted centre variation in outcomes. Methods We utilized a routinely collected national dataset of biochemically detected AKI cases linked with national hospitals administrative and mortality data. A total of 250 504 PH-AKI episodes were studied across 103 National Health Service hospital trusts between January 2017 and December 2018. Standardized mortality ratios (SMRs) were calculated for each trust using logistic regression, adjusting for age, sex, primary diagnosis, comorbidity score, AKI severity, month of AKI and admission method. Results The mean 30-day mortality rate was high, at 28.6%. SMRs for 23/103 trusts were classed as outliers, 12 above and 11 below the 95% confidence limits. Patients with PH-AKI had mortality rates >5 times higher than the overall hospitalized population in 90/136 diagnosis groups and >10 times higher in 60/136 groups. Presentation at trusts with a co-located specialist nephrology service was associated with a lower mortality risk, as was South Asian or Black ethnicity. Deprivation, however, was associated with higher mortality. Conclusions This is the largest multicentre analysis of mortality for patients with biochemically ascertained PH-AKI to date, demonstrating once again the considerable risk associated with developing even mild elevations in serum creatinine. Mortality rates varied considerably across centres and those identified as outliers will now need to carefully interrogate local care pathways to understand and address the reasons for this, with national policy required to tackle the identified health disparities. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
16. Comparison of Outcomes of In-Centre Haemodialysis Patients between the 1st and 2nd COVID-19 Outbreak in England, Wales, and Northern Ireland: A UK Renal Registry Analysis.
- Author
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Savino, Manuela, Santhakumaran, Shalini, Currie, Christine S.M., Onggo, Bhakti S.S., Evans, Katharine M., Medcalf, James F., Nitsch, Dorothea, and Steenkamp, Retha
- Published
- 2022
- Full Text
- View/download PDF
17. Development and Validation of Prediction Models of Adverse Kidney Outcomes in the Population With and Without Diabetes.
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Grams, Morgan E., Brunskill, Nigel J., Ballew, Shoshana H., Sang, Yingying, Coresh, Josef, Matsushita, Kunihiro, Surapaneni, Aditya, Bell, Samira, Carrero, Juan J., Chodick, Gabriel, Evans, Marie, Heerspink, Hiddo J.L., Inker, Lesley A., Iseki, Kunitoshi, Kalra, Philip A., Kirchner, H. Lester, Lee, Brian J., Levin, Adeera, Major, Rupert W., and Medcalf, James
- Subjects
CHRONIC kidney failure ,GLOMERULAR filtration rate ,RESEARCH ,KIDNEYS ,META-analysis ,KIDNEY failure ,RESEARCH methodology ,DIABETES ,EVALUATION research ,COMPARATIVE studies ,RESEARCH funding ,ALBUMINURIA - Abstract
Objective: To predict adverse kidney outcomes for use in optimizing medical management and clinical trial design.Research Design and Methods: In this meta-analysis of individual participant data, 43 cohorts (N = 1,621,817) from research studies, electronic medical records, and clinical trials with global representation were separated into development and validation cohorts. Models were developed and validated within strata of diabetes mellitus (presence or absence) and estimated glomerular filtration rate (eGFR; ≥60 or <60 mL/min/1.73 m2) to predict a composite of ≥40% decline in eGFR or kidney failure (i.e., receipt of kidney replacement therapy) over 2-3 years.Results: There were 17,399 and 24,591 events in development and validation cohorts, respectively. Models predicting ≥40% eGFR decline or kidney failure incorporated age, sex, eGFR, albuminuria, systolic blood pressure, antihypertensive medication use, history of heart failure, coronary heart disease, atrial fibrillation, smoking status, and BMI, and, in those with diabetes, hemoglobin A1c, insulin use, and oral diabetes medication use. The median C-statistic was 0.774 (interquartile range [IQR] = 0.753, 0.782) in the diabetes and higher-eGFR validation cohorts; 0.769 (IQR = 0.758, 0.808) in the diabetes and lower-eGFR validation cohorts; 0.740 (IQR = 0.717, 0.763) in the no diabetes and higher-eGFR validation cohorts; and 0.750 (IQR = 0.731, 0.785) in the no diabetes and lower-eGFR validation cohorts. Incorporating the previous 2-year eGFR slope minimally improved model performance, and then only in the higher-eGFR cohorts.Conclusions: Novel prediction equations for a decline of ≥40% in eGFR can be applied successfully for use in the general population in persons with and without diabetes with higher or lower eGFR. [ABSTRACT FROM AUTHOR]- Published
- 2022
- Full Text
- View/download PDF
18. Estimating the financial cost of chronic kidney disease to the NHS in England
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Kerr, Marion, Bray, Benjamin, Medcalf, James, OʼDonoghue, Donal J., and Matthews, Beverley
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- 2012
- Full Text
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19. Burnout and long COVID among the UK nephrology workforce: results from a national survey investigating the impact of COVID-19 on working lives.
- Author
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Selvaskandan, Haresh, Nimmo, Ailish, Savino, Manuela, Afuwape, Sarah, Brand, Sarah, Graham-Brown, Matthew, Medcalf, James, Cockwell, Paul, and Beckwith, Hannah
- Subjects
POST-acute COVID-19 syndrome ,CORONAVIRUS diseases ,PRODUCTIVE life span ,COVID-19 ,MASLACH Burnout Inventory ,PSYCHOLOGICAL burnout - Abstract
Background The coronavirus disease 2019 (COVID-19) pandemic is placing a significant strain on healthcare. We conducted a national survey of the UK nephrology workforce to understand its impacts on their working lives. Methods An online questionnaire incorporating the Maslach Burnout Inventory score was distributed between 31 March and 1 May 2021, with a focus on COVID-19 and long COVID incidence, vaccine uptake, burnout and working patterns. Data were analysed qualitatively and quantitatively; multivariable logistic regression was used to identify associations. Results A total of 423 responses were received. Of them, 29% had contracted COVID-19, which was more common among doctors and nurses {odds ratio [OR] 2.18 [95% confidence interval (CI) 1.13–4.22]} and those <55 years of age [OR 2.60 (95% CI 1.38–4.90)]. Of those who contracted COVID-19, 36% had symptoms of long COVID, which was more common among ethnicities other than White British [OR 2.57 (95% CI 1.09–6.05)]. A total of 57% had evidence of burnout, which was more common among younger respondents [OR 1.92 (95% CI 1.10–3.35)] and those with long COVID [OR 10.31 (95% CI 1.32–80.70)], and 59% with reconfigured job plans continued to work more hours. More of those working full-time wished to retire early. A total of 59% experienced remote working, with a majority preference for continuing this in the future. In terms of vaccination, 95% had received one dose of a COVID-19 vaccine and 86% had received two doses by May 2021. Conclusions Burnout and long COVID is prevalent with impacts on working lives. Some groups are more at risk. Vaccination uptake is high and remote and flexible working were well received. Institutional interventions are needed to prevent workforce attrition. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
20. Comorbidities and outcomes in South Asian individuals with chronic kidney disease: an observational primary care cohort.
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Major, Rupert W, Shepherd, David, Medcalf, James F, Xu, Gang, Gray, Laura J, and Brunskill, Nigel J
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CHRONIC kidney failure ,PROPORTIONAL hazards models ,PRIMARY care - Abstract
Background South Asian (SA) individuals are more likely to develop end-stage renal disease (ESRD), but how chronic kidney disease (CKD) differs in relation to demographics, comorbidities and outcomes has not been studied. We aimed to study differences in SA individuals with CKD compared with White individuals. Methods This was an observational CKD cohort comparing SA with White individuals. Inclusion criteria were ≥18 years of age and two or more Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) eGFRs <60 mL/min/1.73 m
2 >3 months apart. Individuals with ESRD at baseline were excluded. Baseline characteristics, including eGFR formulae [CKD-EPI and CKD-EPI-Pakistan (CKD-EPI-PK)], were compared. Analysis using competing risk regression for cardiovascular (CV) and ESRD events and Cox proportional hazard model for mortality was performed. Results From an adult population of 277 248 individuals, 17 248 individuals had CKD, of whom 1990 (11.5%) were of SA ethnicity. Age-adjusted prevalence of CKD was similar between ethnicities. SA individuals were more likely to be male, younger and socioeconomically deprived, and to have diabetes mellitus, CV disease and advanced CKD. Mean CKD-EPI-PK eGFR was 6.5 mL/min/1.73 m2 lower (41.1 versus 47.6, 95% confidence interval for difference 6.47–6.56) than for CKD-EPI. During 5 years of follow-up, 5109 (29.6%) individuals died, 2072 (12.0%) had a CV and 156 (0.90%) an ESRD event. Risk for SA individuals was higher for ESRD, similar to CV events and lower for mortality. Each 1 mL/min/1.73 m2 decrease in CKD-EPI-PK was associated with a 13.1% increased ESRD risk (adjusted subdistribution hazard ratio 0.869, 95% confidence interval 0.841–0.898). Conclusions SA individuals with CKD were younger and had more advanced disease than White individuals. Risk of ESRD was higher and CKD-EPI-PK was associated with ESRD risk in SA individuals. Specific CKD interventions, including the use of CKD-EPI-PK, should be considered in SA populations. [ABSTRACT FROM AUTHOR]- Published
- 2022
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- View/download PDF
21. Acute kidney injury identification for pharmacoepidemiologic studies: Use of laboratory electronic acute kidney injury alerts versus electronic health records in Hospital Episode Statistics.
- Author
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Savino, Manuela, Plumb, Lucy, Casula, Anna, Evans, Katharine, Wong, Esther, Kolhe, Nitin, Medcalf, James F., and Nitsch, Dorothea
- Abstract
Purpose: A laboratory‐based acute kidney injury (AKI) electronic‐alert (e‐alert) system, with e‐alerts sent to the UK Renal Registry (UKRR) and collated in a master patient index (MPI), has recently been implemented in England. The aim of this study was to determine the degree of correspondence between the UKRR‐MPI and AKI International Classification Disease‐10 (ICD‐10) N17 coding in Hospital Episode Statistics (HES) and whether hospital N17 coding correlated with 30‐day mortality and emergency re‐admission after AKI. Methods: AKI e‐alerts in people aged ≥18 years, collated in the UKRR‐MPI during 2017, were linked to HES data to identify a hospitalised AKI population. Multivariable logistic regression was used to analyse associations between absence/presence of N17 codes and clinicodemographic features. Correlation of the percentage coded with N17 and 30‐day mortality and emergency re‐admission after AKI were calculated at hospital level. Results: In 2017, there were 301 540 adult episodes of hospitalised AKI in England. AKI severity was positively associated with coding in HES, with a high degree of inter‐hospital variability—AKI stage 1 mean of 48.2% [SD 14.0], versus AKI stage 3 mean of 83.3% [SD 7.3]. N17 coding in HES depended on demographic features, especially age (18–29 years vs. ≥85 years OR 0.22, 95% CI 0.21–0.23), as well as sex and ethnicity. There was no evidence of association between the proportion of episodes coded for AKI with short‐term AKI outcomes. Conclusion: Coding of AKI in HES is influenced by many factors that result in an underestimation of AKI. Using e‐alerts to triangulate the true incidence of AKI could provide a better understanding of the factors that affect hospital coding, potentially leading to improved coding, patient care and pharmacoepidemiologic research. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
22. Outcomes of patients with COVID-19 on kidney replacement therapy: a comparison among modalities in England.
- Author
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Savino, Manuela, Santhakumaran, Shalini, Evans, Katharine M, Steenkamp, Retha, Benoy-Deeney, Fran, Medcalf, James F, and Nitsch, Dorothea
- Subjects
RENAL replacement therapy ,COVID-19 ,COVID-19 pandemic ,TREATMENT effectiveness ,REGIONAL disparities - Abstract
Background Chronic kidney disease is a recognized risk factor of poor outcomes from coronavirus disease 2019 (COVID-19). Methods This retrospective cohort study used the UK Renal Registry database of people on kidney replacement therapy (KRT) at the end of 2019 in England and who tested positive for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) between 1 March 2020 and 31 August 2020 to analyse the incidence and outcomes of COVID-19 among different KRT modalities. Comparisons with 2015–2019 mortality data were used to estimate excess deaths. Results A total of 2783 individuals on KRT tested positive for SARS-CoV-2. Patients from more-deprived areas {most deprived versus least deprived hazard ratio [HR] 1.20 [95% confidence interval (CI) 1.04–1.39]} and those with diabetes compared with those without [HR 1.51 (95% CI 1.39–1.64)] were more likely to test positive. Approximately 25% of in-centre haemodialysis and transplanted patients died within 28 days of testing positive compared with 36% of those on home therapies. Mortality was higher in those ≥80 years of age compared with those 60–79 years [odds ratio (OR) 1.71 (95% CI 1.34–2.19)] and much lower in those listed for transplantation compared with those not listed [OR 0.56 (95% CI 0.40–0.80)]. Overall, excess mortality in 2020 for people on KRT was 36% higher than the 2015–2019 average. Excess deaths peaked in April 2020 at the height of the pandemic and were characterized by wide ethnic and regional disparities. Conclusions The impact of COVID-19 on the English KRT population highlights their extreme vulnerability and emphasizes the need to protect and prioritize this group for vaccination. COVID-19 has widened underlying inequalities in people with kidney disease, making interventions that address health inequalities a priority. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
23. Role of transforming growth factor beta in peritoneal fibrosis
- Author
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AL-JAYYOUSI, REEM H, MEDCALF, JAMES F, and HARRIS, KEVIN PG
- Published
- 2002
24. Effects of glucose dialysate on extracellular matrix production by human peritoneal mesothelial cells (HPMC): the role of TGF-β
- Author
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Medcalf, James F., Walls, John, Pawluczyk, Izabella Z. A., and Harris, Kevin P. G.
- Published
- 2001
25. Role of diuretics in the preservation of residual renal function in patients on continuous ambulatory peritoneal dialysis
- Author
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Medcalf, James F., Harris, Kevin P.G., and Walls, John
- Published
- 2001
26. The association of blood pressure variability with adverse outcomes in a primary care chronic kidney disease cohort.
- Author
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Pallikadavath, Susil, Chambers, Lucy, Shepherd, David, Sukhnani, Mahak, Medcalf, James F., Gray, Laura J., Brunskill, Nigel J., and Major, Rupert W.
- Published
- 2021
- Full Text
- View/download PDF
27. Advanced chronic kidney disease among UK children.
- Author
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Plumb, Lucy, Magadi, Winnie, Casula, Anna, Reynolds, Ben C., Convery, Mairead, Haq, Shuman, Hegde, Shivaram, Lunn, Andrew, Malina, Michal, Morgan, Henry, Muorah, Mordi, Tyerman, Kay, Sinha, Manish D., Wallace, Dean, Inward, Carol, Marks, Stephen, Nitsch, Dorothea, and Medcalf, James
- Subjects
CHRONIC kidney failure ,KIDNEY diseases ,MOLLUSCUM contagiosum ,COMMUNICABLE disease epidemiology ,YOUNG adults ,COVID-19 pandemic ,KIDNEY glomerulus diseases - Published
- 2022
- Full Text
- View/download PDF
28. Sociodemographic features and mortality of individuals on haemodialysis treatment who test positive for SARS-CoV-2: A UK Renal Registry data analysis.
- Author
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Savino, Manuela, Casula, Anna, Santhakumaran, Shalini, Pitcher, David, Wong, Esther, Magadi, Winnie, Evans, Katharine M., Benoy-Deeney, Fran, Griffin, James, Plumb, Lucy, Steenkamp, Retha, Nitsch, Dorothea, and Medcalf, James
- Subjects
SARS-CoV-2 ,COVID-19 ,DATA analysis ,MORTALITY ,HEMODIALYSIS - Abstract
Kidney disease is a recognised risk factor for poor COVID-19 outcomes. Up to 30 June 2020, the UK Renal Registry (UKRR) collected data for 2,385 in-centre haemodialysis (ICHD) patients with COVID-19 in England and Wales. Overall unadjusted survival at 1 week after date of positive COVID-19 test was 87.5% (95% CI 86.1–88.8%); mortality increased with age, treatment vintage and there was borderline evidence of Asian ethnicity (HR 1.16, 95% CI 0.94–1.44) being associated with higher mortality. Compared to the general population, the relative risk of mortality for ICHD patients with COVID-19 was 45.4 and highest in younger adults. This retrospective cohort study based on UKRR data supports efforts to protect this vulnerable patient group. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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- View/download PDF
29. New frontiers in continuous ambulatory peritoneal dialysis
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Medcalf, James F. and Walls, John
- Published
- 1997
30. Rapid dissemination of human T-lymphotropic virus type 1 during primary infection in transplant recipients.
- Author
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Cook, Lucy B. M., Melamed, Anat, Demontis, Maria Antonietta, Laydon, Daniel J., Fox, James M., Tosswill, Jennifer H. C., de Freitas, Declan, Price, Ashley D., Medcalf, James F., Martin, Fabiola, Neuberger, James M., Bangham, Charles R. M., and Taylor, Graham P.
- Subjects
HTLV ,TRANSPLANTATION of organs, tissues, etc. ,RALTEGRAVIR ,AZIDOTHYMIDINE ,LYMPHOCYTES - Abstract
Background: Human T-lymphotropic virus type 1 (HTLV-1) infects an estimated 10 million persons globally with transmission resulting in lifelong infection. Disease, linked to high proviral load, occurs in a minority. In established infection HTLV-1 replicates through infectious spread and clonal expansion of infected lymphocytes. Little is known about acute HTLV-1 infection. The kinetics of early HTLV-1 infection, following transplantation-acquired infection in three recipients from one HTLV-1 infected donor, is reported. The recipients were treated with two HTLV-1 enzyme inhibitors 3 weeks post exposure following the detection of HTLV-1 provirus at low level in each recipient. HTLV-1 infection was serially monitored by serology, quantification of proviral load and HTLV-1 2LTR DNA circles and by HTLV-1 unique integration site analysis. Results: HTLV-1 antibodies were first detected 16-39 days post-transplantation. HTLV-1 provirus was detected by PCR on day 16-23 and increased by 2-3 log by day 38-45 with a peak proviral doubling time of 1.4 days, after which steady state was reached. The rapid proviral load expansion was associated with high frequency of HTLV-1 2LTR DNA circles. The number of HTLV-1 unique integration sites was high compared with established HTLV-1 infection. Clonal expansion of infected cells was detected as early as day 37 with high initial oligoclonality index, consistent with early mitotic proliferation. Conclusions: In recipients infected through organ transplantation HTLV-1 disseminated rapidly despite early anti- HTLV-1 treatment. Proviral load set point was reached within 6 weeks. Seroconversion was not delayed. Unique integration site analysis and HTLV-1 2LTR DNA circles indicated early clonal expansion and high rate of infectious spread. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
31. COVID-19 in children with chronic kidney disease: findings from the UK renal registry.
- Author
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Plumb, Lucy, Benoy-Deeney, Fran, Casula, Anna, Braddon, Fiona E. M., Tse, Yincent, Inward, Carol, Marks, Stephen, Steenkamp, Retha, Medcalf, James, and Nitsch, Dorothea
- Subjects
COVID-19 ,PEDIATRIC nephrology ,CHRONIC kidney failure ,HOSPITAL statistics ,MEDICAL personnel ,COVID-19 pandemic - Published
- 2021
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- View/download PDF
32. FO059 MEASURES OF BLOOD PRESSURE VARIABILITY AND THEIR ASSOCIATION WITH CARDIOVASCULAR AND RENAL OUTCOMES IN PRIMARY CARE CHRONIC KIDNEY DISEASE.
- Author
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Chambers, Lucy, Pallikadavath, Susil, Major, Rupert, Shepherd, David, Medcalf, James, Xu, Gang, Gray, Laura, and Brunskill, Nigel
- Subjects
BLOOD pressure ,KIDNEY diseases ,PRIMARY care ,CHRONIC diseases - Published
- 2019
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- View/download PDF
33. Memorabilia.
- Author
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MEDCALF, JAMES E.
- Published
- 1962
34. MR. D. A. VARLEY.
- Author
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MEDCALF, JAMES E.
- Published
- 1961
35. TRANSACTIONS OF THE LANCASHIRE AND CHESHIRE ANTIQUARIAN SOCIETY, 1957.
- Author
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MEDCALF, JAMES E.
- Published
- 1959
36. JOURNAL OF THE BRITISH SOCIETY OF MASTER GLASS-PAINTERS.
- Author
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MEDCALF, JAMES E.
- Published
- 1961
37. The Forgotten "Student" in "Student-Athlete": Why a New Cause of Action Is Needed To Remind Universities that Education Comes First.
- Author
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Abrahamian, Jacob
- Subjects
CAUSES of action ,LEGAL status of college athletes ,ACADEMIC fraud ,STUDENT cheating ,EDUCATION - Abstract
The article discusses the legal issues involving student-athletes in the U.S. and proposes a cause of action called intentional interference with educational benefits to remind universities to prioritize education. Other topics include academic fraud in the National Collegiate Athletic Association (NCAA), and the penalties imposed by the NCAA against University of Missouri due to academic misconduct.
- Published
- 2020
38. COMMENCE trial (Comparing hypOtherMic teMperaturEs duriNg hemiarCh surgEry): a randomized controlled trial of mild vs moderate hypothermia on patient outcomes in aortic hemiarch surgery with anterograde cerebral perfusion.
- Author
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Jabagi, Habib, Wells, George, and Boodhwani, Munir
- Subjects
PERFUSION ,INTRA-aortic balloon counterpulsation ,DRUG-eluting stents ,RANDOMIZED controlled trials ,TRANSIENT ischemic attack ,THORACIC aorta ,ACUTE kidney failure ,HYPOTHERMIA - Abstract
Background: Aortic arch surgery remains the only viable life-saving treatment for aortic arch disease. However, the necessity for cessation of systemic blood flow with hypothermic cardiac arrest carries substantial risk of morbidity and mortality, including poor neurological outcomes and kidney failure. While uncontrolled studies have suggested the safety of operating at warmer temperatures, significant variables remain un-investigated, supporting the need for a randomized clinical trial (RCT) to produce evidence-based guidelines for perfusion strategies in aortic surgery. This study proposes a multi-center RCT in order to compare outcomes of warmer hypothermic strategies during aortic hemiarch surgery on a composite endpoint of neurologic and acute kidney injury (AKI).Methods/design: This is a prospective multi-center, single-blind two-arm RCT comparing mild (32 °C) versus moderate (26 °C) hypothermic cardiac arrest in patients (n = 282) undergoing hemiarch surgery with antegrade cerebral perfusion (ACP). The primary endpoint is a composite of neurological injury (incidence of transient ischemic attack and/or stroke) and Kidney Disease Improving Global Outcomes (KDIGO) stage 1 or higher AKI. Secondary outcomes include death, cardiopulmonary bypass time, bleeding, transfusion rates, prolonged mechanical ventilation, myocardial infarction, length of stay, and quality of life measures. Patients will undergo 1:1 block randomization to each treatment arm on day of surgery. Sequence of operation will be at the surgeon's discretion with mandatory guidelines for temperature and ACP administration. Perioperative management will occur as per enrolling center standard of care. Neurocognitive function will be assessed for neurological injury using validated neurological screening tests: NIHSS, MOCA, BI, and MRS throughout patient follow-up. Diagnosis and classification of AKI will be based on rising creatinine values as per the KDIGO criteria. Study duration for each patient will be 60 ± 14 days.Discussion: It is hoped that performing hemiarch surgery using mild hypothermia (32 °C) and selective ACP will result in a 15% absolute risk reduction in the composite outcomes. The potential of this risk reduction will translate into improved patient outcomes, survival, and long-term financial savings to the health care system. In addition, the results of this trial will be used to create the first-ever guidelines for temperature management strategy during aortic surgery.Trial Registration: This trial is registered on ClinicalTrials.gov with the registration number NCT02860364. Registration date August 9th, 2016. [ABSTRACT FROM AUTHOR]- Published
- 2019
- Full Text
- View/download PDF
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