The following was received from
New York City Bureau of Rad Health via email:
[A] patient was receiving treatment of left lobe of liver with Y-90 Sir Spheres. Half way through the procedure the catheter became clogged. 30 mCi of Y-90 was prescribed, only 22.5 mCi was delivered. 7.5 mCi remained in the catheter. [The] initial report stated that treatment of right lobe of liver had been scheduled for April. [The] initial report stated that Physician decided to treat left lobe of liver with makeup dose of 7.5 mCi Y-90 at that time.
[The] ORH [Office of Radiological Health] inspector stated that multiple attempts were made to flush the catheter without success. The catheter was removed and the remainder of the dose was administered at the date of the initial clog with a micro-catheter.
[The] physician spoke to the vendor rep (company SureFire). [The] company stated that cause of the clog would be investigated when the Y-90 had decayed.
[The] referring physician was notified.
[This] incident is considered a reportable medical event because the administered dose differed from the prescribed dose by >20%.
[The] hospital states that if any future incidents such as this equipment malfunction occurs, they will keep the patient in treatment position to determine by measurement if proper dosage was delivered. If measurements indicate that inadequate dosage was delivered, they will draw another dose to supplement the original administration until the appropriate dose is administered to the patient.
A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient.