A 63-year-old woman developed agranulocytosis (a severe drop in white blood cells) shortly after undergoing aortic and mitral valve replacement surgery.
The condition was likely triggered by bone marrow suppression from an antiarrhythmic medication and the use of extracorporeal circulation during the procedure.
After treatment with G-CSF (a medication that stimulates white blood cell production), her white blood cell count significantly improved, and she did not experience any severe infections, leading to a stable recovery post-surgery.