Abdominal Functional Electrical Stimulation to Augment Respiratory Function in Spinal Cord Injury

Area of Science:

• Neurology
• Rehabilitation Medicine
• Biomedical Engineering

Background:

• Functional electrical stimulation (FES) applies electrical pulses to nerves for muscle contraction.
• Abdominal FES stimulates nerves innervating abdominal muscles, inducing contraction even with paralysis post-spinal cord injury.
• Abdominal muscles are crucial for exhalation and often impaired in tetraplegia, making abdominal FES a potential respiratory support method.

Purpose of the Study:

• To enhance understanding of abdominal FES applications for improving health in spinal cord-injured individuals.
• To review the efficacy of abdominal FES in managing respiratory dysfunction in tetraplegia.

Main Methods:

• A narrative review of existing literature on abdominal FES was conducted.
• Studies focusing on the application and outcomes of abdominal FES in spinal cord injury patients were analyzed.

Main Results:

• Abdominal FES demonstrated immediate effectiveness in facilitating cough in tetraplegia patients.
• Repeated abdominal FES application over six weeks improved unassisted respiratory function.
• Abdominal FES was associated with reduced ventilator duration and tracheostomy cannulation time.

Conclusions:

• Abdominal FES is a noninvasive technique for functional gains in cough and respiration for acute and chronic tetraplegia.
• Potential benefits include decreased ventilation duration, easier tracheostomy decannulation, and fewer respiratory complications.
• These outcomes may lead to reduced morbidity and mortality, improved quality of life, and healthcare cost savings.