Phosphides are common pesticides widely used as a grain preservative. Zinc phosphide toxicity is a major health problem with a high mortality rate especially in developing countries. Cardiotoxicity is the main cause of death in phosphide poisonings. Aim of study: This prospective study aimed to evaluate the cardiovascular affection among zinc phosphide intoxicated patients admitted to the Poison Control Center, Ain Shams University Hospitals (PCC- ASUH) during the period from 1^st June 2013 to 1^st June 2014 and to determine factors predicting the outcome of patients with zinc phosphide cardiotoxicity with special reference to determination of serum troponin I.
 Methods: Clinical characteristics (systolic blood pressure and central venous pressure), laboratory parameters (liver enzymes, renal function, serum electrolytes: (sodium and potassium), random blood sugar, serum bicarbonate and qualitative assessment of cardiac troponin I,electrocardiographic ( ECG) findings and treatment characteristics were all recorded.
Results: Cardiotoxicity was evident in 18 patients out of 144 (12.5%) with zinc phosphide intoxication, twelve of them died. Systolic blood pressure was significantly lower among non survivors (60 ± 7 mmHg) compared to survivors (75 ± 5 mmHg). Central venous pressure was elevated in 6 patients, all of them died. Serum cardiac troponin I was positive in 67% (12 patients) and it did not predict mortality. Eight patients out of the 18 patients had dysrhythmias which found to be a predictor of mortality.
Conclusion: The statistically significant factors useful in predicting mortality in our study were shock (which required vasoactive drugs), increased central venous pressure and ventricular arrhythmias.