1. Polanczyk CA, Newton C, Dec GW, Di Salvo TG. Quality of care and hospital re- admission in congestive heart failure: An explicit review process. J Card Fail 2001; 7: 289–298.
2. Zannad F, Mebazaa A, Juillière Y, Co- hen-Solal A, Guize L, Alla F, Rougé P, Blin P, Barlet MH, Paolozzi L, Vincent C, Desnos M, Samii K, for the EFICA In- vestigators. Clinical profile, contempo- rary management and one-year mortal- ity in patients with severe acute heart failure syndromes: The EFICA study. Eur J Heart Fail 2006; 8: 697–705.
3. Logeart D, Tabet JY, Hittinger L, Thabut G, Jourdain P, Maison P, Tartiere JM, Solal AC. Transient worsening of renal function during hospitalization for acute heart failure alters outcome. Int J Cardiol 2008; 127: 228–232.
4. Forman DE, Butler J, Wang Y, Abraham WT, O’Connor CM, Gottlieb SS, Loh E, Massie BM, Rich MW, Stevenson LW, Young JB, Krumholz HM. Incidence, pre- dictors at admission, and impact of worsening renal function among pa- tients hospitalized with heart failure. J Am Coll Cardiol 2004; 43: 61–67.
5. Chittineni H, Miyawaki N, Gulipelli S, Fishbane S. Risk for acute renal failure in patients hospitalized for decompen- sated congestive heart failure. Am J Nephrol 2007; 27: 55–62.
6. Mullens W, Abrahams Z, Francis GS, Sokos G, Taylor DO, Starling RC, Young JB, Tang WHW. Importance of venous congestion for worsening of renal func- tion in advanced decompensated heart failure. J Am Coll Cardiol 2009; 53: 589–596.
7. Damman K, Navis G, Voors AA, Asselbergs FW, Smilde TD, Cleland JG, van Veldhuisen DJ, Hillege HL. Worsen- ing renal function and prognosis in heart failure: Systematic review and meta- analysis. J Card Fail 2007; 13: 599–608.
8. Cowie MR, Komajda M, Murray-Thomas T, Underwood J, Ticho B, POSH Investi- gators. Prevalence and impact of wors- ening renal function in patients hospital- ized with decompensated heart failure: Results of the prospective outcomes study in heart failure (POSH). Eur Heart J 2006; 27: 1216–1222.
9. Metra M, Davison B, Bettari L, Sun H, Edwards C, Lazzarini V, Piovanelli B, Carubelli V, Bugatti S, Lombardi C, Cotter G, Dei Cas L. Is worsening renal function an ominous prognostic sign in patients with acute heart failure? The role of congestion and its interaction with renal function. Circ Heart Fail 2012; 5: 54–62.
10. Maggioni AP, Dahlström U, Filippatos G, Chioncel O, Leiro MC, Drozdz J, Fruhwald F, Gullestad L, Logeart D, Fabbri G, Urso R, Metra M, Parissis J, Persson H, Ponikowski P, Rauchhaus M, Voors AA, Nielsen OW, Zannad F, Tavazzi L. on behalf of the Heart Failure Association of the European Society of Cardiology (HFA)EURObservational re- search Programme: Regional differences and 1-year follow-up results of the heart failure pilot survey (ESC-HF pilot). Eur J Heart Fail 2013; 15: 808–817.
11. Rubio-Gracia J, Demissei BG, ter Maaten JM, Cleland JG, O’Connor CM, Metra M, Ponikowski P, Teerlink JR, Cotter G, Davison BA, Givertz MM, Bloomfield DM, Dittrich H, Damman K, Pérez-Calvo JI, Voors AA. Prevalence, predictors and clinical outcome of residual congestion in acute decompensated heart failure. Int J Cardiol 2018; 258: 185–191.
12. Gheorghiade M, De Luca L, Fonarow GC, Filippatos G, Metra M, Francis GS. Pathophysiologic targets in the early phase of acute heart failure syndromes. Am J Cardiol 2005; 96: 11G–17G.
13. O’Connor CM, Stough WG, Gallup DS, Hasselblad V, Gheorghiade M. Demo-graphics, clinical characteristics, and outcomes of patients hospitalized for de-compensated heart failure: Observa-tions from the IMPACT-HF registry. J Card Fail 2005; 11: 200–205.
14. Vaduganathan M, Greene SJ, Fonarow GC, Voors AA, Butler J, Gheorghiade M. Hemoconcentration-guided diuresis in heart failure. Am J Med 2014; 127: 1154–1159.
15. Felker GM, Lee KL, Bull DA, Redfield MM, Stevenson LW, Goldsmith SR, LeWinter M, Deswal A, Rouleau JL, Ofili EO, Anstrom KJ, Hernandez AF, McNulty S, Velazquez EJ, Kfoury AG, Chen HH, Givertz MM, Semigran MJ, Bart BA, Mascette AM, Braunwald E, O’Connor CM, NHLBI Heart Failure Clin-ical Research Network. Diuretic strate-gies in patients with acute decompen-sated heart failure. N Engl J Med 2011; 364: 797–805.
16. Damman K, Valente MA, Voors AA, O’Connor CM, van Veldhuisen DJ, Hillege HL. Renal impairment, worsen-ing renal function, and outcome in patients with heart failure: An updated meta-analysis. Eur Heart J 2014; 35: 455–469.
17. Fujimoto W, Toh R, Takegami M, Hayashi T, Kuroda K, Hatani Y, Yamashita S, Imanishi J, Iwasaki M, Inoue T, Okamoto H, Okuda M, Konishi A, Shinohara M, Murata S, Ogata S, Nishimura K, Hirata KI. Estimating incidence of acute heart failure syndromes in Japan - An analysis from the KUNIUMI registry. Circ J 2021; 85: 1860–1868.
18. McKee PA, Castelli WP, McNamara PM, Kannel WB. The natural history of congestive heart failure: The Framing- ham study. N Engl J Med 1971; 285: 1441–1446.
19. Lang RM, Badano LP, Mor-Avi V, Afilalo J, Armstrong A, Ernande L, Flachskampf FA, Foster E, Goldstein SA, Kuznetsova T, Lancellotti P, Muraru D, Picard MH, Rietzschel ER, Rudski L, Spencer KT, Tsang W, Voigt JU. Recommendations for cardiac chamber quantification by echocardiography in adults: An update from the American Society of Echocardi-ography and the European Association of Cardiovascular Imaging. Eur Heart J Cardiovasc Imaging 2015; 16: 233–270.
20. Mullens W, Damman K, Testani JM, Martens P, Mueller C, Lassus J, Tang WHW, Skouri H, Verbrugge FH, Orso F, Hill L, Ural D, Lainscak M, Rossignol P, Metra M, Mebazaa A, Seferovic P, Ruschitzka F, Coats A. Evaluation of kid-ney function throughout the heart fail-ure trajectory - A position statement from the Heart Failure Association of the European Society of Cardiology. Eur J Heart Fail 2020; 22: 584–603.
21. Nunez J, Minana G, Santas E, Bertomeu-Gonzalez V. Cardiorenal syndrome in acute heart failure: Revisiting para-digms. Rev Esp Cardiol (Engl Ed) 2015; 68: 426–435.
22. Wettersten N, Horiuchi Y, van Veldhuisen DJ, Mueller C, Filippatos G, Nowak R, Hogan C, Kontos MC, Cannon CM, Müeller GA, Birkhahn R, Taub P, Vilke GM, Barnett O, McDonald K, Mahon N, Nuñez J, Briguori C, Passino C, Murray PT, Maisel A. B-type natri-uretic peptide trend predicts clinical sig-nificance of worsening renal function in acute heart failure. Eur J Heart Fail 2019; 21: 1553–1560.
23. Pan D, Pellicori P, Dobbs K, Bulemfu J, Sokoreli I, Urbinati A, Brown O, Sze S, Rigby AS, Kazmi S, Riistama JM, Cleland JGF, Clark AL. Prognostic value of the chest X-ray in patients hospitalised for heart failure. Clin Res Cardiol 2021; 110: 1743–1756.
24. Bozkurt B, Coats AJS, Tsutsui H, Abdelhamid CM, Adamopoulos S, Albert N, Anker SD, Atherton J, Böhm M, Butler J, Drazner MH, Michael Felker G, Filippatos G, Fiuzat M, Fonarow GC, Gomez-Mesa JE, Heidenreich P, Imamura T, Jankowska EA, Januzzi J, Khazanie P, Kinugawa K, Lam CSP, Matsue Y, Metra M, Ohtani T, Francesco Piepoli M, Ponikowski P, Rosano GMC, Sakata Y, Seferović P, Starling RC, Teerlink JR, Vardeny O, Yamamoto K, Yancy C, Zhang J, Zieroth S. Universal definition and classification of heart fail-ure: A report of the Heart Failure Soci-ety of America, heart failure Association of the European Society of Cardiology, Japanese Heart Failure Society and Writing Committee of the Universal Def-inition of Heart Failure: Endorsed by the Canadian Heart Failure Society, Heart Failure Association of India, Cardiac So-ciety of Australia and New Zealand, and Chinese Heart Failure Association. Eur J Heart Fail 2021; 23: 352–380.
25. Tsutsui H, Isobe M, Ito H, Ito H, Okumura K, Ono M, Kitakaze M, Kinugawa K, Kihara Y, Goto Y, Komuro I, Saiki Y, Saito Y, Sakata Y, Sato N, Sawa Y, Shiose A, Shimizu W, Shimokawa H, Seino Y, Node K, Higo T, Hirayama A, Makaya M, Masuyama T, Murohara T, Momomura SI, Yano M, Yamazaki K, Yamamoto K, Yoshikawa T, Yoshimura M, Akiyama M, Anzai T, Ishihara S, Inomata T, Imamura T, Iwasaki YK, Ohtani T, Onishi K, Kasai T, Kato M, Kawai M, Kinugasa Y, Kinugawa S, Kuratani T, Kobayashi S, Sakata Y, Tanaka A, Toda K, Noda T, Nochioka K, Hatano M, Hidaka T, Fujino T, Makita S, Yamaguchi O, Ikeda U, Kimura T, Kohsaka S, Kosuge M, Yamagishi M, Yamashina A. on behalf of the Japanese Circulation Society and the Japanese Heart Failure Society Joint Working GroupJCS 2017/JHFS 2017 guideline on diagnosis and treatment of acute and chronic heart failure- Digest version. Circ J 2019; 83: 2084–2184.
26. Ronco C, Haapio M, House AA, Anavekar N, Bellomo R. Cardiorenal syndrome. J Am Coll Cardiol 2008; 52: 1527–1539.
27. Gottlieb SS, Abraham W, Butler J, Forman DE, Loh E, Massie BM, O’Connor CM, Rich MW, Stevenson LW, Young J, Krumholz HM. The prognostic importance of different definitions of worsening renal function in congestive heart failure. J Card Fail 2002; 8: 136–141.
28. Lazaros G, Tsiachris D, Tousoulis D, Patialiakas A, Dimitriadis K, Roussos D, Vergopoulos E, Tsioufis C, Vlachopoulos C, Stefanadis C. In-hospital worsening renal function is an independent predictor of one-year mortality in patients with acute myocardial infarction. Int J Cardiol 2012; 155: 97–101.
29. Bock JS, Gottlieb SS. Cardiorenal syn-drome: New perspectives. Circulation 2010; 121: 2592–2600.
30. McDonagh TA, Metra M, Adamo M, Gardner RS, Baumbach A, Böhm M, Burri H, Butler J, Čelutkienė J, Chioncel O, Cleland JGF, Coats AJS, Crespo-Leiro MG, Farmakis D, Gilard M, Heymans S, Hoes AW, Jaarsma T, Jankowska EA, Lainscak M, Lam CSP, Lyon AR, McMurray JJV, Mebazaa A, Mindham R, Muneretto C, Francesco Piepoli M, Price S, Rosano GMC, Ruschitzka F, Kathrine Skibelund A, ESC Scientific Document Group, de Boer RA, Christian Schulze P, Abdelhamid M, Aboyans V, Adamopoulos S, Anker SD, Arbelo E, Asteggiano R, Bauersachs J, Bayes-Genis A, Borger MA, Budts W, Cikes M, Damman K, Delgado V, Dendale P, Dilaveris P, Drexel H, Ezekowitz J, Falk V, Fauchier L, Filippatos G, Fraser A, Frey N, Gale CP, Gustafsson F, Harris J, Iung B, Janssens S, Jessup M, Konradi A, Kotecha D, Lambrinou E, Lancellotti P, Landmesser U, Leclercq C, Lewis BS, Leyva F, Linhart A, Løchen ML, Lund LH, Mancini D, Masip J, Milicic D, Mueller C, Nef H, Nielsen JC, Neubeck L, Noutsias M, Petersen SE, Sonia Petronio A, Ponikowski P, Prescott E, Rakisheva A, Richter DJ, Schlyakhto E, Seferovic P, Senni M, Sitges M, Sousa-Uva M, Tocchetti CG, Touyz RM, Tschoepe C, Waltenberger J, Adamo M, Baumbach A, Böhm M, Burri H, Čelutkienė J, Chioncel O, Cleland JGF, Coats AJS, Crespo-Leiro MG, Farmakis D, Gardner RS, Gilard M, Heymans S, Hoes AW, Jaarsma T, Jankowska EA, Lainscak M, Lam CSP, Lyon AR, McMurray JJV, Mebazaa A, Mindham R, Muneretto C, Piepoli MF, Price S, Rosano GMC, Ruschitzka F, Skibelund AK. 2021 ESC guidelines for the diagno-sis and treatment of acute and chronic heart failure. Eur Heart J 2021; 42: 3599–3726.
31. Ambrosy AP, Pang PS, Khan S, Konstam MA, Fonarow GC, Traver B, Maggioni AP, Cook T, Swedberg K, Burnett JC, Grinfeld L, Udelson JE, Zannad F, Gheorghiade M. on behalf of the EVEREST trial investigatorsClinical course and predic- tive value of congestion during hospi- talization in patients admitted for worsening signs and symptoms of heart failure with reduced ejection fraction: Findings from the EVEREST trial. Eur Heart J 2013; 34: 835–843.
32. Sharma A, Mucino MJ, Ronco C. Renal functional reserve and renal recovery after acute kidney injury. Nephron Clin Pract 2014; 127: 94–100.