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Dilutional acidosis complicating rotational atherectomy
S R Alla1, M Jagadeesan, D S Marks
1Adult Cardiac Catheterization Lablratory, Section of Cardiology, Medical College of Georgia, 1120 15th Street, Augusta, GA 30912, USA.
The Journal of Invasive Cardiology
|April 4, 2000
Summary
Rotational atherectomy can cause dilutional metabolic acidosis due to excessive hydration. This rare complication requires careful fluid management during the procedure.
Area of Science:
- Cardiovascular Interventions
- Nephrology
- Acid-Base Physiology
Background:
- Rotational atherectomy is a key percutaneous intervention for treating complex atherosclerotic lesions in coronary and peripheral arteries.
- The procedure involves high-speed rotation of a burr to ablate plaque, often requiring significant intraprocedural hydration.
Observation:
- An unusual complication of dilutional metabolic acidosis was observed during rotational atherectomy.
- This complication appears linked to the substantial intravenous fluid administration required during the procedure.
Findings:
- The acidosis is attributed to dilution of serum electrolytes and buffering capacity by large fluid volumes.
- This highlights a potential metabolic consequence of aggressive hydration protocols in interventional cardiology.
Implications:
- Clinicians should be aware of the risk of dilutional metabolic acidosis in patients undergoing rotational atherectomy.
- Monitoring electrolyte balance and acid-base status may be warranted, especially in patients with pre-existing renal compromise or those requiring prolonged procedures.