IRCT20220809055645N3 IRCT 2023-05-20 Rasht University of Medical Sciences Study of the safety and clinical outcomes of fasting comparing to non-fasting before elective coronary angiography Study of the safety and clinical outcomes of fasting comparing to non-fasting before elective coronary angiography: A randomized clinical trial 2023-05-22 anticipated 292 Complete https://irct.ir/trial/70002 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: The method of sampling and randomization of this clinical trial study will be stratified blocked randomization method. In this way, each person was randomly assigned to the intervention or control group using 4 random blocks in a ratio of 1:1. In this method, one of the letters A or B will be assigned to each group. 3 Ischemic heart disease. Intervention group: The intervention group will include 146 candidates for elective coronary angiography, who will enter the study with personal consent and after completing the informed consent form. The participants in this group will not fast before the angiography and are allowed to consume food and liquids in any amount. All patients over 18 years of age who are candidates for elective angiography in Dr. Heshmat Rasht Hospital during the period of 2014-2014 will be included in the study. If the patient undergoes emergency, complicated, incomplete or unsuccessful angiography, or if they have swallowing disorders, feeding with digestive tubes, they will be excluded from the study. In addition, if the patient has symptoms of dizziness and convulsions recently or is pregnant, she will be excluded from the study.. No - There is not a plan to make this available Justification or reason for not sharing IPD is Patients' information will be kept confidential and it will be only available to this project's researchers.