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Intraoperative Hypotension and Acute Kidney Injury After Off-pump Coronary Artery Bypass Grafting Surgery

P

Peking University

Status

Completed

Conditions

Intraoperative Hypotension
Acute Kidney Injury
Coronary Artery Bypass, Off-Pump

Study type

Observational

Funder types

Other

Identifiers

NCT03889730
OPCABG-AKI-BP

Details and patient eligibility

About

Acute renal injury (AKI) is a common complication after cardiac surgery and is associated with worse outcomes. Hypotension is an important risk factor for the development of AKI after noncardiac surgery. However, the association between intraoperative hypotension and AKI after cardiac surgery has not been fully investigated. The purpose of this study is to analyze the association between intraoperative hypotension and acute kidney injury after off-pump coronary artery bypass surgery.

Full description

Acute renal injury (AKI) is a common complication after cardiac surgery. Cardiac surgery-associated acute kidney injury (CSA-AKI) is associated with increased in-hospital mortality, prolonged length of stay in the Intensive Care Unit and hospital, and higher costs of care. Intraoperative hypotension is an important risk factor for the development of AKI after noncardiac surgery. In a retrospective analysis, a mean arterial pressure of less than 55 mmHg predicted the occurrence of adverse cardiac- and renal-related outcomes after noncardiac surgery. Other studies also revealed that intraoperative hypotension is associated with increased incidence of AKI and 1-year mortality after noncardiac surgery. In patients undergoing cardiac surgery, 30-day mortality is proportionate to the extent of systolic blood pressure excursions outside the range of 75 to 135 mm Hg intraoperatively. However, the correlation between intraoperative hypotension and the development of AKI after cardiac surgery has not been fully investigated. The purpose of this study is to analyze the association between intraoperative hypotension and the risk of acute kidney injury after off-pump coronary artery bypass surgery.

Enrollment

821 patients

Sex

All

Ages

50+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Age ≥ 50 years;
  • Underwent off-pump CABG surgery.

Exclusion criteria

  • End-stage renal disease requiring renal-replacement therapy;
  • Emergency surgery;
  • Kidney transplantation within 3 months;
  • Missing data.

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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