Freebase(0.00 / 0 votes)Rate this definition: Chronotropic. Chronotropic effects are those that change the heart rate. Chronotropic drugs may change the heart rate by affecting the nerves controlling the heart, or by changing the rhythm produced by the sinoatrial node. Positive chronotropes increase heart rate; negative chronotropes decrease heart rate.
Erectile dysfunction (ED), formerly known as impotence, is the inability to achieve or maintain an erection long enough to engage in sexual intercourse. Under normal circumstances, when a man is sexually stimulated, his brain sends a message down the spinal cord and into the nerves of the penis.
Med-Peds or Combined Internal Medicine & Pediatrics is a medical specialty which trains its doctors to be board certified in both Internal Medicine and Pediatrics. After medical school, doctors typically train for four years dividing time equally between the two specialties making Med-Peds physicians able to take care of patients of all ages.