UPDATE: Late Friday night, Shane del Rosario's coach Colin Oyama wrote on Facebook, "Start praying people cause we got a shot!"

Shane del Rosario is still on life support in a Newport Beach, Calif. hospital.

A little over three days after he was admitted to Hoag Memorial Hospital Presbyterian after suffering sudden cardiac arrest in his home, del Rosario's manager Jason House says the 30-year-old's family is "still hoping" for a miracle.

"Shane continues to cling to life at Hoag hospital in Newport Beach, Calif.," House told MMAFighting.com via text message. "After arriving at the emergency room in full cardiac arrest on Tuesday morning he was resuscitated to stable rhythm and blood pressure, but has not regained consciousness.

"Doctors believe he may suffer from a rare condition called Long QT Syndrome which is a genetic anomaly that can cause a sudden and life threatening heart rhythm abnormality, and may result in sudden death. Tragically, it strikes healthy young people and often is the first and only presentation of a heart problem."

Here is how MayoClinic.com describes LQTS:

"Long QT syndrome (LQTS) is a heart rhythm disorder that can potentially cause fast, chaotic heartbeats. These rapid heartbeats may trigger a sudden fainting spell or seizure. In some cases, your heart may beat erratically for so long that it can cause sudden death.

You can be born with a genetic mutation that puts you at risk of long QT syndrome. In addition, certain medications and medical conditions may cause long QT syndrome.

Long QT syndrome is treatable. You may need to limit your physical activity, avoid medications known to cause prolonged Q-T intervals or take medications to prevent a chaotic heart rhythm. Some people with long QT syndrome need surgery or an implantable device"

Doctors at Hoag Memorial Hospital Presbyterian in Newport Beach, Calif. modulated del Rosario's body temperature by using the Arctic Sun Temperature Management System, which cools down the body to a hypothermic state in an effort to revitalize the brain and organs. As of Thursday night, del Rosario didn't respond to that treatment.

His doctors wanted to give him 72 hours to fully respond to it, however, as of Friday afternoon, House wasn't sure if that time period had officially come to an end.

On Tuesday, del Rosario suffered from what House described as "catastrophic cardiovascular collapse."