[Hypothyroidism and coronary artery bypass surgery]

Area of Science:

• Cardiology
• Endocrinology

Background:

• Hypothyroidism poses risks in patients with severe coronary artery disease.
• Management strategies for hypothyroid patients undergoing cardiac surgery are crucial.

Observation:

• A case of coronary artery bypass surgery in a hypothyroid patient without preoperative thyroid hormone treatment is presented.
• The patient had severe coronary disease.

Findings:

• Coronary artery bypass surgery can be performed on hypothyroid patients without significant risk.
• Omitting preoperative thyroid hormone administration is recommended to avoid exacerbating cardiac conditions.
• Postoperative L-thyroxine treatment allows for rapid and complete thyroid hormone substitution.

Implications:

• Screening middle-aged women with high cholesterol for myxedema is advised, even without apparent clinical hypothyroidism.
• This approach ensures safer surgical outcomes for hypothyroid patients with coronary disease.
• Early detection and management of hypothyroidism can prevent cardiac complications.