TB incidence has fallen by an average of 1.5% per year since 2000. This needs to accelerate to a 4–5% annual decline to reach the 2020 milestones of the "End TB Strategy" (“Key”). If these statistics continue, the discoveries made in the 20th century will be the reason these advancements now are successful. The second major advancements in cardio during the 20th century were also through instruments and tools. Pacemakers had been thought of but never executed until 1958. A pacemaker is an artificial device for stimulating the heart muscle and regulating its contractions (“pacemaker”). The pacemaker was invented in 1958 by Wilson Greatbatch, but was not implanted until 1960. The three most common pacemakers implanted are the single-chamber pacemakers, dual-chamber pacemakers, and biventricular pacemakers (“common”). These three pacemakers can be used to treat heart disease, heart failure, and syncope (fainting …show more content…
Without these pacemakers, the death rate would go up each year, and hospitals would be overwhelmed by how many people would be coming into the ER. These instruments also help the patients, by not only keeping their heart rhythm, but because they would not have to go through any procedures that would cause stress on their heart. The third and final reason advancements in cardio were major was because of transplants. Transplants have revolutionized the medical world, not only in cardiothoracics, but also in other fields of medical practice. There are about 28,000 transplants performed in the U.S. a year, and 3,500 are heart transplants (“organ”). The first heart and lung transplant was performed on March 9, 1981 by Dr. Bruce Reitz at Stanford Medical Center. After this was performed, the man only lived for 18 days, after dying from pneumonia. Even though the man died, the procedure proved that transplants were an option to be performed in the future. The first successful double lung transplant was done in 1986 in Canada, only just 5 years after the first heart transplant. The recipient, Ann Harrison, survived after the procedure and died at the age of 56 from a brain aneurysm. These transplants have “set the stage” for then later transplants that would be performed in the future. Statistics have shown that each donor can save up to 8 people, and can improve up to 50 (“donor”). The factors that will determine