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Microalbuminuria is acutely increased during anesthesia and surgery
A Mercatello1, A Hadj-Aïssa, C Chery
1Service d'Anesthésie et Réanimation, Hôptial Edouard-Herriot, Lyon, France.
Nephron
|January 1, 1991
Summary
Anesthesia and surgery significantly increase microalbuminuria (a marker of kidney stress) in patients. Albumin levels rise during procedures and remain elevated post-surgery, indicating potential kidney impact.
Area of Science:
- Nephrology
- Anesthesiology
- Surgical Science
Background:
- Microalbuminuria signifies kidney damage, often linked to increased glomerular pressure or altered permeability.
- Anesthesia and surgery are known to impact renal function and vasoactive substance release.
Purpose of the Study:
- To investigate the effect of anesthesia and surgery on albumin excretion in patients.
- To assess changes in microalbuminuria during and after surgical procedures.
Main Methods:
- Studied seven patients with normal renal function and baseline microalbuminuria.
- Collected urine samples at multiple time points: pre-anesthesia, pre-surgery, 30 min post-incision, and 30 min post-surgery.
Main Results:
- Anesthesia significantly increased microalbuminuria.
- Microalbuminuria further elevated during surgery.
- Post-surgery, albuminuria decreased but remained significantly higher than baseline.
Conclusions:
- Anesthesia and surgery induce a notable increase in microalbuminuria.
- Elevated albuminuria may result from increased glomerular pressure or altered permeability.
- Vasoactive substances released during surgery could affect glomerular structure, contributing to increased albumin excretion.