A veterinary case reproduced an event under similar multidrug protocols without identifying its definitive cause.
An 11-year-old Rottweiler developed marked hyperkalemia during separate ophthalmic procedures at two hospitals within a month. Both regimens included propofol, midazolam, neuromuscular blockade, and isoflurane. Electrocardiographic changes were present during the first episode but not the second.
Potassium normalized after treatment on both occasions, and subsequent checks remained normal. The authors stated that the definitive underlying cause was unknown.
Repeated occurrence under a similar protocol strengthens interest in the perioperative context, but several exposures and physiological changes were shared. It does not isolate midazolam or establish a benzodiazepine class effect. Veterinary physiology also limits human extrapolation.
For review, align potassium measurements, ventilation, fluids, medications, and cardiac observations. The report illustrates uncertainty in a repeated adverse event. It cannot supply an incidence estimate or prove that one listed anesthetic caused the electrolyte change.
Original analysis of the supplied journal article, identified as PMC7197330.