Acute Kidney Injury, Cardiac Surgery, Chronic Kidney Disease, Stage 3, Chronic Kidney Disease, Stage 5, Thoracic Aortic Surgery
Conditions
Keywords
acute kidney injury, chronic kidney disease, cardiac surgery, thoracic aortic surgery
Brief summary
The investigators aimed to evaluate the association between the duration and stage of acute kidney injury (AKI) and the development of chronic kidney disease during postoperative three years in patients undergoing cardiac or thoracic aortic surgery.
Detailed description
Postoperative acute kidney injury (AKI) has been investigated as an important contributor to postoperative morbidity and mortality after cardiovascular surgery. Also, temporary worsening of renal function after aortic surgery is associated with higher long-term mortality. Although the associations between AKI and chronic kidney disease (CKD) in medical or other surgical settings were reported, only a few studies evaluated this relationship in patients undergoing cardiac surgery. More specifically, the association of the severity or duration of AKI with the risk of the development of new-onset CKD after cardiac surgery has not been clearly elucidated. It would be important to find predictors of the long-term renal function or risk factors for the development of CKD after cardiac surgery because postoperative management of high-risk patients to develop long-term renal dysfunction may prevent further deterioration in renal function and improve patient prognosis. The investigators aimed to evaluate (1) the long-term renal function after cardiac surgery and (2) the association between the duration and stage of acute kidney injury (AKI) and the development of chronic kidney disease during postoperative three years in patients undergoing cardiac or thoracic aortic surgery.
Interventions
None listed
Sponsors
Seoul National University Hospital
Study design
Observational model
COHORT
Time perspective
RETROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
20 Years to No maximum
Inclusion criteria
* Adult patients who underwent cardiac or thoracic aortic surgery under cardiopulmonary bypass at Seoul National University Hospital between 2008 and 2017
Exclusion criteria
* Those with off-pump coronary artery bypass * Missing baseline serum creatinine * Missing postoperative serum creatinine values of more than three among seven postoperative days * Preoperative baseline chronic kidney disease with estimated glomerular filtration rate \<60 ml/min/1.73m2
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| new-onset chronic kidney disease stage 3 or higher or mortality | during 3 years after surgery | development of new-onset chronic kidney disease stage 3 or higher or all-cause mortality developed during 3 years after surgery. The new-onset chronic kidney disease was defined by at least two estimated Glomerular Filtration Rate values \<60 ml/min/1.73 m2 separated by an interval of at least three months. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Length of postoperative hospital stay | during one month after surgery | Length of postoperative hospital stay |
| Length of postoperative intensive care unit stay | during one month after surgery | Length of postoperative intensive care unit stay |
| intra-aortic balloon pulsation insertion | during surgery and postoperative one week | intra-aortic balloon pulsation insertion |
| Reopen for surgical bleeding | during one month after surgery | Reopen for surgical bleeding |
| new-onset chronic kidney disease stage 3 or higher or mortality | during 1 year after surgery | development of new-onset chronic kidney disease stage 3 or higher or all-cause mortality developed during 1 year after surgery |
| in-hospital mortality | during one month after surgery | all-cause mortality during hospital stay |
| Incidence of estimated Glomerular Filtration Rate <60 mL/min/1.73m2 | at three months after surgery | Incidence of estimated Glomerular Filtration Rate \<60 mL/min/1.73m2 |
| Dependence on the regular hemodialysis | at three years after surgery | Dependence on the regular hemodialysis |
| estimated Glomerular Filtration Rate | at three months after surgery | estimated Glomerular Filtration Rate |
| Respiratory complication | during one month after surgery | a composite outcome including postoperative atelectasis, pneumonia, pulmonary edema, pleural effusion and pneumothorax |
Countries
South Korea
Outcome results
None listed