scholarly journals Pathogenetic mechanisms, epidemiology and classification of acute kidney injury in heart transplant recipients

Author(s):  
I. L. Poz ◽  
A. G. Strokov ◽  
V. N. Poptsov ◽  
A. O. Shevchenko ◽  
S. V. Gautier

Kidney injury in heart transplant recipients is of a complex nature and bears the features of all types of cardiorenal interaction impairment. Pre-transplant renal dysfunction, perioperative acute kidney injury, as well as factors associated with graft and immunosuppression, determine the prevalence and severity of kidney pathology in this group of patients. This review examines the pathophysiology of kidney dysfunction in heart failure, the epidemiology, and criteria for acute kidney injury.

2018 ◽  
Vol 102 ◽  
pp. S119
Author(s):  
Ali Aliyev ◽  
Asude Ayhan ◽  
Pinar Zeyneloglu ◽  
Arash Pirat ◽  
Atilla Sezgin ◽  
...  

Author(s):  
Seth A. Hollander ◽  
Sukyung Chung ◽  
Sushma Reddy ◽  
Nina Zook ◽  
Jeffrey Yang ◽  
...  

AbstractAcute kidney injury (AKI) is common after pediatric heart transplantation (HT) and is associated with inferior patient outcomes. Hemodynamic risk factors for pediatric heart transplant recipients who experience AKI are not well described. We performed a retrospective review of 99 pediatric heart transplant patients at Lucile Packard Children's Hospital Stanford from January 1, 2015, to December 31, 2019, in which clinical and demographic characteristics, intraoperative perfusion data, and hemodynamic measurements in the first 48 postoperative hours were analyzed as risk factors for severe AKI (Kidney Disease: Improving Global Outcomes [KDIGO] stage ≥ 2). Univariate analysis was conducted using Fisher's exact test, Chi-square test, and the Wilcoxon rank-sum test, as appropriate. Multivariable analysis was conducted using logistic regression. Thirty-five patients (35%) experienced severe AKI which was associated with lower intraoperative cardiac index (p = 0.001), higher hematocrit (p < 0.001), lower body temperature (p < 0.001), lower renal near-infrared spectroscopy (p = 0.001), lower postoperative mean arterial blood pressure (MAP: p = 0.001), and higher central venous pressure (CVP; p < 0.001). In multivariable analysis, postoperative CVP >12 mm Hg (odds ratio [OR] = 4.27; 95% confidence interval [CI]: 1.48–12.3, p = 0.007) and MAP <65 mm Hg (OR = 4.9; 95% CI: 1.07–22.5, p = 0.04) were associated with early severe AKI. Children with severe AKI experienced longer ventilator, intensive care, and posttransplant hospital days and inferior survival (p = 0.01). Lower MAP and higher CVP are associated with severe AKI in pediatric HT recipients. Patients, who experienced AKI, experienced increased intensive care unit (ICU) morbidity and inferior survival. These data may guide the development of perioperative renal protective management strategies to reduce AKI incidence and improve patient outcomes.


2006 ◽  
Vol 38 (Supplement) ◽  
pp. S359
Author(s):  
Corey R. Tomczak ◽  
Nicholas G. Jendzjowsky ◽  
Daniel Kim ◽  
Wayne Tymchak ◽  
Robert G. Haennel ◽  
...  

2014 ◽  
Vol 5 (1) ◽  
pp. 40-47 ◽  
Author(s):  
Wen Zhang ◽  
Dan Wen ◽  
Yan-Fang Zou ◽  
Ping-Yan Shen ◽  
Yao-Wen Xu ◽  
...  

Objective: To describe and analyze the clinical characteristics of acute kidney injury (AKI) patients with preexisting chronic heart failure (CHF) and to identify the prognostic factors of the 1-year outcome. Methods: A total of 120 patients with preexisting CHF who developed AKI between January 2005 and December 2010 were enrolled. CHF was diagnosed according to the European Society of Cardiology guidelines, and AKI was diagnosed using the RIFLE criteria. Clinical characteristics were recorded, and nonrecovery from kidney dysfunction as well as mortality were analyzed. Results: The median age of the patients was 70 years, and 58.33% were male. 60% of the patients had an advanced AKI stage (‘failure') and 90% were classified as NYHA class III/IV. The 1-year mortality rate was 35%. 25.83% of the patients progressed to end-stage renal disease after 1 year. Hypertension, anemia, coronary atherosclerotic heart disease and chronic kidney disease were common comorbidities. Multiple organ dysfunction syndrome (MODS; OR, 35.950; 95% CI, 4.972-259.952), arrhythmia (OR, 13.461; 95% CI, 2.379-76.161), anemia (OR, 6.176; 95% CI, 1.172-32.544) and RIFLE category (OR, 5.353; 95% CI, 1.436-19.952) were identified as risk factors of 1-year mortality. For 1-year nonrecovery from kidney dysfunction, MODS (OR, 8.884; 95% CI, 2.535-31.135) and acute heart failure (OR, 3.281; 95% CI, 1.026-10.491) were independent risk factors. Conclusion: AKI patients with preexisting CHF were mainly elderly patients who had an advanced AKI stage and NYHA classification. Their 1-year mortality and nonrecovery from kidney dysfunction rates were high. Identifying risk factors may help to improve their outcome.


2014 ◽  
Author(s):  
Michael M. Givertz

Heart failure is a major public health problem with significant associated morbidity and mortality. Heart transplantation remains the standard of care for highly selected patients with end-stage heart failure and absence of contraindications to transplantation. This chapter discusses indications and contraindications for transplantation; recipient evaluation, selection, and management; donor selection; timing of the procedure and surgical technique; medical management, including immunosuppression, prevention and treatment of infections, and other standard or preventive therapy; late complications; and functional status and long-term survival. Tables describe patient referral to a specialized center for heart transplantations; guidelines of indications for cardiac transplantation; organ dysfunction; pretransplantation evaluation; waiting lists; therapeutic options for patients with advanced or refractory heart failure; treating highly sensitized patients; suggested vaccinations; guidelines for donor hearts with severe infection; high-risk donor behavior; hemodynamic effect of commonly used parenteral agents; frequency of follow-up evaluations; revised International Society for Heart and Lung Transplantation (ISHLT) formulation for diagnosis of cardiac allograft rejection and suggested treatment; function of immunosuppressive agents; administration, dosing, monitoring, and adverse effects of commonly used immunosuppressants; common agents that interfere with tacrolimus and cyclosporine; cytomegalovirus prophylaxis and valganciclovir based on estimated renal function; cumulative morbidity rates in adult heart transplant survivors; and therapies to prevent and treat osteoporosis posttransplantation. Figures depict the progression of heart failure; change in functional status over time in patients with chronic heart failure; US heart transplantations in 2012; percentage of US adult wait-listed patients who received a donor heart transplant within a year and donation rates by state; bicaval surgical technique; endomyocardial biopsies; timeline of infection following solid-organ transplantation; cardiac allograft vasculopathy; and squamous cell carcinomas in a heart transplant patient. Graphs show adult worldwide heart transplantation volume from 1982 to 2010; changing characteristics of US adult heart transplant recipients; relative risk of death and development of cardiac allograft vasculopathy; posttransplantation immunosuppression at 1 and 5 years in the ISHLT Registry; older donor age and risk of developing cardiac allograft vasculopathy; freedom from malignancy in the ISHLT Registry; employment status of adult heart transplant recipients; adult heart transplant survival; and patient survival among US heart transplant recipients by gender and race. This review contains 18 highly rendered figures, 20 tables, and 109 references.


2017 ◽  
Vol 35 (03) ◽  
pp. 298-304 ◽  
Author(s):  
Wuttichart Kamolvisit ◽  
Sutthikiat Jaroensri ◽  
Benthira Ratchatapantanakorn ◽  
Narongsak Nakwan

Objective This study aims to determine the risk factors and outcome of persistent pulmonary hypertension of the newborn (PPHN)-associated acute kidney injury (AKI). Study Design Infants diagnosed with PPHN at Hat Yai Hospital from January 2012 to December 2016 were retrospectively reviewed. Results Of the 109 included PPHN infants, 28.4% (31/109) died, and AKI was found in 28.4% following neonatal KDIGO classification. Of the 31, 19 who died (61.3%) reached stage 1, 3 (9.7%) reached stage 2, and 9 (29.0%) reached stage 3. AKI (all stages combined) was significantly associated with increased mortality with an odds ratio (OR) of 8.71 (95% confidence interval [CI], 3.37–22.49). Multivariate logistic regression analysis indicated that male gender (adjusted OR = 8.56; 95% CI = 0.84–85.09) and urine output of < 1 mL/kg/h in 12 hours of admission (adjusted OR = 15.57; 95% CI = 2.58–93.98) were the main factors associated with an increased risk for AKI, while birth by cesarean delivery was associated with reduced risk of AKI (adjusted OR = 0.10; 95% CI = 0.16–0.68). Conclusion The incidence of AKI in PPHN was high in this study, and this complication was also significantly associated with higher mortality. In PPHN neonates, AKI should be especially closely monitored in males and infants who have a urine output of < 1 mL/kg/h in the first 12 hours of admission.


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