Radiocontrast Media Induced Hyponatremia

Radiocontrast Media Induced Hyponatremia After Percutaneous Coronary Intervention: Observational Study

Osmolality of contrast media can be resulted in translocational hyponatremia after percutaneous coronary intervention.

Radiocontrast media after percutaneous coronary interventioncan lead to increased osmolaliry of plasma, which results in translocational hyponatremia.

The investigator will exam the incidence of hyponatremia after percutaneous coronary intervention, and will evaluate the underlying mechanism related to hyponatremia including translocational hyponatremia, or osmotic natriuresis.

Inclusion Criteria:

• Patients who receive contrast media during percutaneous coronary intervention

Exclusion Criteria:

• Patients who have sensitivity to contrast media.
• Liver cirrhosis
• Hypothyroidism
• SIADH
• Patients who receive IVIG or mannitol.