Former Cradle of Filth and Dimmu Borgir drummer Nick Barker recently opened up about his harrowing health struggle during an appearance on The False Face podcast. Barker revealed that he developed calciphylaxis, a rare and life-threatening condition with a 50/50 survival rate. This condition was triggered by a blood thinner medication.
“The health is improving day by day. I’m in a really positive head space ’cause I developed a life-threatening condition called calciphylaxis,” Barker said. “It’s got a 50/50 chance of survival rate. That’s how serious it is.”
The drummer explained that the condition was caused by warfarin, a prescribed blood thinner. It made the blood vessels in his calves calcify, resulting in severe lesions. “I was prescribed a drug called warfarin, which is a blood thinner. And it made the blood vessels in my calves calcify. So I had these big fucking bruised lesions,” he continued. “It looks like a shark has just come and taken chunks out of my calf muscles.”
Barker underwent intensive treatment, including five dialysis sessions per week and intravenous medications to flush the drug from his system. However, the treatment led to infections that nearly resulted in sepsis. “We stopped that medication immediately. And then to try and flush it out of my system, the docs put me on dialysis five times a week,” he said. “And all my wounds got infected. I almost got sepsis. This was like, last month.”
The drummer emphasized the severity of his situation, stating that amputation was a real possibility at one point in his recovery journey.
Calciphylaxis, also known as calcific uremic arteriolopathy, is a rare but severe condition. Calcium deposits accumulate in small blood vessels, blocking blood flow to the skin and causing painful, non-healing ulcers. The condition is characterized by extreme pain that often exceeds what the visible skin damage might suggest. Lesions typically appear as purple, red, or mottled patches that progress into black, crusty ulcers. These painful wounds most commonly develop on areas with high fat content, including the abdomen, thighs, buttocks, and legs—precisely where Barker experienced his most severe symptoms.
While the exact cause of calciphylaxis remains unknown, the condition is strongly linked to disruptions in calcium and phosphorus balance. It particularly affects individuals with advanced kidney disease or those undergoing dialysis treatment. Warfarin, the blood thinner that triggered Barker’s condition, is recognized as a significant risk factor for developing calciphylaxis. Other contributing factors include hyperparathyroidism, high phosphorus or calcium levels in the blood, corticosteroid use, obesity, and diabetes. The disease can also be triggered by physical trauma, certain cancers that destroy bone, or other underlying metabolic disorders that compromise the body’s ability to regulate mineral balance.
The prognosis for calciphylaxis patients is sobering. Approximately half of those diagnosed die within one year of diagnosis. The primary threat comes from severe, life-threatening infections that develop from the non-healing ulcers, which can progress to sepsis—the very complication Barker narrowly avoided. Treatment focuses on managing the underlying causes rather than curing the disease itself. Specialized wound care, medication adjustments, and mineral control through diet and dialysis modifications are essential interventions. Stopping warfarin immediately, as Barker’s doctors did, is critical. Sodium thiosulfate used during dialysis helps dissolve calcium deposits. Pain management with strong medications is essential, as the condition causes excruciating discomfort that can be debilitating.
Barker’s recovery represents a remarkable outcome given the grim statistics surrounding calciphylaxis. His determination to survive and his access to intensive medical intervention—including five weekly dialysis sessions and intravenous medications—appear to have made the difference in his case. The musician’s willingness to speak publicly about his ordeal brings attention to a disease that affects a small but vulnerable population, primarily those with kidney disease or on dialysis. His story underscores the importance of careful medication management and the potential dangers of blood thinners in patients with compromised kidney function. It also highlights the resilience required to survive one of medicine’s most challenging conditions.
