Background: Cirrhotic patients who develop Spontaneous Bacterial Peritonitis (SBP), they most likely have cirrhotic cardiomyopathy, which is characterized by diminished contractility in response to stress despite a generally normal resting cardiac output. Objective: Patients who developed SBP can be assessed prognosticaly by electrocardiography and echocardiography together with scoring systems this was proposed in our study. Patients and Methods: Four hundred cirrhotic patients were included in our study admitted to our general ICU in Critical Care Medicine Department, Faculty of Medicine, Helwan University in the period from May 2020 to September 2022, all patients did not undergo transplant within the study duration and if any patients underwent liver transplant within one year of the last SBP episode were excluded. Patients were classified according to electrocardiographic parameters into low and high QT_C and echo cardiographically with tissue Doppler into low and high E/E΄ Ratio with a cut off values > 480 ms for QTc and > 10 for E/E΄ ratio. Results: Four hundred cirrhotic patients were classified into two groups according to the QT_C and E/E΄ into low QTc and low E/E΄ group included 200 patients and high QT_C and high E/E΄ group included the other 200 patients. Higher QT_C and higher E/E΄ were associated with increased in hospital acute kidney' injury, ICU mortality and 1 year mortality. Conclusion: Cirrhotic patients with SBP associated with high QT_C and high E/E΄ are at high risk for acute kidney injury, ICU mortality and 1 year mortality, also, high QT_C duration > 480 ms and high E/E΄ ratio of > 10 together with diabetes mellitus, left atrial diameter and left atrial volume, were independent parameters associated with increased mortality at 1-year followup.