B.C. Anesthesiologist Explores Anesthetic Use in Zero Gravity

Anesthesiologist Dr. Matthew Turnock and his research team are investigating how anesthetic drugs behave in zero gravity conditions. Their groundbreaking project involves real experiences of microgravity, conducted aboard an Airbus A310 in France. This innovative research is particularly significant for future space travel, where administering anesthesia presents unique challenges.

Dr. Turnock, who practices at Eagle Ridge Hospital and Royal Columbian Hospital, described the microgravity experience as both intense and exhilarating. “Your brain has no idea what is up and what is down,” he remarked, emphasizing the disorienting effects of floating in a weightless environment. The research aims to understand how anesthetics might behave in space, especially since many administered drugs are inhaled.

In a spacecraft, an accidental disconnection could lead to widespread anesthesia among the crew, a scenario Dr. Turnock identifies as highly dangerous. He elaborated on the research methodology, explaining that the team used CT images of a real person to construct a model of the spinal canal, filled with simulated spinal fluid. This setup allowed them to explore the potential risks of anesthetic medication inadvertently reaching the brain, a phenomenon known as a “high spinal.”

During their time in France, the team experienced brief periods of weightlessness as the aircraft climbed and dropped. Each ascent provided approximately 25 seconds of genuine zero gravity. “It’s not simulated; it’s real zero gravity, exactly how an astronaut would feel in space,” Dr. Turnock stated. These moments of weightlessness were crucial for their experiments.

The team’s hypothesis suggested that without gravity, anesthetic medication would not spread effectively. Their findings confirmed this theory. “The medication doesn’t spread enough for it to work, but there are things we can investigate to perhaps promote the spread of medication,” Dr. Turnock explained. This unexpected result has raised new questions and fueled the team’s quest for deeper understanding through additional space research.

The project is supported by the Canadian Space Agency and involves a collaborative effort with other medical professionals, including Dr. Alex Suen, Dr. Siobhan Wagner, and Adrian Tabari, a medical student from University of British Columbia (UBC). Their research highlights the critical need for safe anesthetic practices in future space missions, paving the way for advancements in space medicine.

As the team continues to explore the complexities of anesthetic administration in microgravity, their findings may influence protocols for medical procedures in space, ensuring the safety and well-being of astronauts. This pioneering research underscores the intersection of medicine and space science, opening doors to new possibilities in healthcare beyond Earth.