Hyponatraemia in hip fracture patients

Area of Science:

• Geriatric Medicine
• Orthopedic Surgery
• Nephrology

Background:

• Hyponatremia is a common electrolyte imbalance.
• Hip fractures are prevalent in elderly populations.
• Perioperative management of hip fracture patients requires careful consideration of electrolyte status.

Purpose of the Study:

• To determine the incidence of hyponatremia in patients with hip fractures before and after surgical intervention.
• To evaluate the impact of different hyponatremia definitions on incidence rates.
• To highlight the need for monitoring and prevention strategies.

Main Methods:

• Retrospective review of patients admitted with neck of femur fractures requiring surgery.
• Analysis of serum sodium levels ([Na]) pre- and post-operatively.
• Application of two distinct definitions for hyponatremia: [Na] < 130 mmol/l and [Na] < 125 mmol/l.

Main Results:

• Using [Na] < 130 mmol/l, the incidence of hyponatremia was 2.8% pre-operatively and 2.8% post-operatively.
• Using [Na] < 125 mmol/l, no pre-operative hyponatremia cases were identified.
• With [Na] < 125 mmol/l, the post-operative hyponatremia incidence was 0.93%.

Conclusions:

• The incidence of hyponatremia in hip fracture patients undergoing surgery is low.
• Despite low incidence, the potential severity of hyponatremia necessitates vigilant patient monitoring.
• Developing preventative measures for hyponatremia in this patient cohort is recommended.