Gueron started to engage in cardiac muscle-related events in patients at the advice of Prof. Wilhelmina Cohen, the then-director and founder of Soroka's Pediatric Division, which while treating a young Bedouin boy who was stung by a deathstalker, discovered symptoms of shock, ventricular arrhythmias and ventricular tachycardia. This issue has evolved into a large-scale, great depth research by Prof. Gueron and his team, who were the first in the field of medicine to have found that yellow scorpion venom evokes potent cardiovascular responses in humans. Gueron's work, his treatments in patients and studies on severity of scorpion stings were published in the largest medical publications on a global scale. Medical career Gueron was appointed Professor at Soroka Medical Center in 1967, and was involved in the development of the techniques of heart and heart-lung treatment. Gueron is best known for a research he has managed regarding the treatment of scorpion evenomation and its affection on the human's heart. During his 40 years research, thousands of stung patients were reviewed. Gueron's research has shown that thirty-four patients with severe scorpion sting were reviewed and pertinent data related to the cardiovascular system such as hypertension, peripheral vascular collapse, congestive heart failure or pulmonary edema were analyzed. The electrocardiograms of 28 patients were reviewed, 14 patients showed "early myocardial infarction-like" pattern. The urinary catecholamine metabolites were investigated in 12 patients with scorpion sting. Vanylmandelic acid was elevated in seven patients and the total free epinephrine and norepinephrine in eight. Six of these 12 patients displayed the electrocardiographic "myocardial infarction-like" pattern. Nine patients died and the pathologic lesions of the myocardium were reviewed in seven. The anticipated time line is within three years depending on successful animal trials. Gueron was described hypertension, pulmonary oedema with hypertension, hypotension, pulmonary oedema with hypotension and rhythm disturbances as five different syndromes that may dominate the clinical picture in scorpion sting victim. He suggested that all patients with cardiac symptoms should be admitted to an intensive cardiac unit. Gueron was questioned regarding the value of giving antivenin, and he replied that although it is freely available, all cases of scorpion sting are treated without it, and there had not been a single fatality in 1989. In 1990, he reported poor contractility with low ejection fraction, decreased systolic left ventricular performance, lowered fractional percentage shortening observed in echocardiographic and radionuclide angiographic study. In fact, Gueron's research tended to prove