Title pageTitle : Letter to the Editor: What are the factors affecting the progression of kidney failure mortality and morbidity after cardiac surgery in patients with chronic kidney disease”.Article type: Letter to the editorCorrespondence: 1. Hafsa ArifContact: +923092446917 Email : Hafsaarif1708@gmail.comInstitution: Jinnah Sindh medical university.Address: R141 salman garden malir, karachi.