Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Antiseptics BIBLIOGRAPHY Close, Frank. Antimatter. Oxford: Oxford University Press, 2009. Fraser, Gordon. Antimatter: The Ultimate Mirror. Cambridge, UK: Cambridge University Press, 2002. Kane, Gordon. The Particle Garden: Our Universe as Understood by Particle Physicists. New York: Perseus Press, 1995. Lincoln, Don. The Quantum Frontier: From Quarks to the Cosmos. Baltimore: Johns Hopkins University Press, 2009. Lincoln, Don. Understanding the Universe: From Quarks to the Cosmos. Revised ed. Singapore: World Scientific, 2012. Don Lincoln Senior Scientist Fermi National Accelerator Laboratory ANTISEPTICS The discovery of antiseptics and their effect on public health can be considered one of the great milestones in medical history. In 1907 the American physician and historian Franklin C. Clark (1847–1915) characterized three events that revolutionized the practice of surgery in an article appearing in the Medical Library and Historical Journal (145–146): (1) arresting blood flow with ligatures, (2) anesthesia, and (3) antiseptic surgery. The third event is the subject of this review. Antiseptics and antisepsis have had a profound influence on the practice of medicine as well as contributing to the betterment of public health. Although the scope and spectrum of antiseptic medicine and surgery has evolved to its current excellent state, there remain issues today in parts of the world where conditions are not completely unlike the dawn of the era of antisepsis. The topic is current, timely, and ongoing. The history of the discovery of antiseptics and their subsequent development and application is populated by a group of intelligent, energetic, and determined individuals who were purpose driven. Some became well known and others are not as well known. Yet collectively, they constitute a remarkable body of work that led to a solution for one of medicine’s greatest challenges. By definition, antiseptics are substances applied to living tissue to either kill bacteria (bactericidal) or inhibit their growth (bacteriostatic). Similar substances are able to destroy viruses (viricidal). Disinfectants are substances that destroy bacteria and viruses on nonliving objects and surfaces. Antisepsis refers to the practice of destroying or inhibiting growth of microorganisms with the goal of infection prevention. This is often accomplished by the application of antiseptics. THE HISTORICAL MOTIVATION FOR DEVELOPING ANTISEPTICS With this background, the story of the development of antiseptics is quite interesting. In 1843 Boston physician Oliver Wendell Holmes Sr. (1809–1894) theorized in an essay appearing in the New England Quarterly Journal of Medicine and Surgery that puerperal fever (or childbed fever) was ‘‘communicated from one person to another, both directly and indirectly’’ (p. 503). Although he did not identify an etiological agent, his reasoning regarding contagion was sound. Unfortunately, his ideas were largely unnoticed and even attacked by distinguished colleagues. Later, in 1855, he had the essay re published in pamphlet form titled, Puerperal Fever as a Private Pestilence. Hungarian obstetrician Ignaz Semmelweis (1818–1865) is largely credited with the origin of the antiseptic technique of hand washing as a means of infection control in 1847. This discovery was in relation to puerperal fever. Semmelweis observed and studied the fact that the obstetrical clinic in Vienna, Austria, where he worked and trained had an increased number of deaths from puerperal fever as compared to a similar clinic in the same hospital where only midwives were trained. After the death of a close friend and colleague from an illness similar to puerperal fever that followed an accidental sharps injury (i.e., a wound due to skin penetration from a scalpel or other medical instrument) while performing an autopsy, Semmelweis concluded that a connection existed between autopsies and puerperal fever. That link was the hands of the medical students and trainees. This led to the initiation of a policy of hand washing with chlorinated lime (calcium hypochlorite) between autopsies and obstetrical patient examinations. The incidence of deaths from puerperal fever decreased 90 percent. Although this contribution was probably not original with Semmelweis, this was very likely the first time a single necessary cause of a disease was identified. Although Semmelweis’s major work on the subject did not appear in publication until 1861, his conclusions were announced by others through editorials, letters, and lectures. His ideas were considered out of the mainstream of established medical practice and were attacked on several fronts, including by Scottish physician James Young Simpson (1811–1870), who pioneered chloroform anesthesia in 1847. Simpson believed that the British had previously reached the same conclusions as Semmelweis regarding transmission of puerperal fever. GRADUAL ACCEPTANCE OF THE GERM THEORY The germ theory of disease was unknown at the time of Semmelweis’s discovery. The French scientist Louis Pasteur (1822–1895), who made important discoveries in chemistry and microbiology, and taught physics for a DISCOVERIES IN MODERN SCIENCE: EXPLORATION, INVENTION, TECHNOLOGY (c) 2014 Cengage Learning. All Rights Reserved. 19 Antiseptics were related. He noted that these patients seemed to recover better in wards in which bromine deodorants were used. Believing that bromine could be safely used on patients with hospital gangrene, he developed a protocol of surgical debridement (i.e., the removal of dead or damaged tissues) followed by subcutaneous injection of bromine solution and topical application. He carefully compiled data and analyzed his results and found an overall 2.6 percent mortality with bromine-based therapy compared to 45.6 percent mortality without it. His results were challenged by the contemporary medical establishment, but his contribution to surgical antisepsis remains significant. Joseph Lister. Lister theorized that a shield of antiseptic between the surgical wound and air would protect the wound from microorganisms in the air. He used carbolic acid, a well-known disinfectant, to soak his surgical gauzes and instruments. As a result, surgeons gained the ability to carry out complex surgery without patients developing fatal infections. COURTESY OF THE NATIONAL LIBRARY OF MEDICINE time, demonstrated the germ theory between 1860 and 1864. This remarkable discovery gave credibility to the findings of Semmelweis. During this time in the United States, the Civil War was raging. It was during this conflict that two significant events in the field of antiseptics occurred. George H. Tichenor (1837–1923), a Confederate cavalryman with a background in chemistry and business, gained considerable medical knowledge during his time of service that would eventually lead to his medical license. In 1863 in Mississippi he sustained a gunshot wound to his left arm that he treated with a formulation containing 70 percent alcohol and avoided amputation. After the war he bottled and sold his product while practicing medicine. The company bearing his name remains in existence today in New Orleans, Louisiana. Middleton Goldsmith (1818–1888), a Union surgeon working in Louisville, Kentucky, in 1863, faced the horrible problem of hospital gangrene. He theorized that ‘‘hospital gangrene, erysipelas, and pyaemia’’ 20 Building on the work of Pasteur, the British surgeon Joseph Lister (1827–1912) is credited with beginning modern surgery between 1865 and 1867. He theorized that a shield of antiseptic between the surgical wound and air would protect the wound from microorganisms in the air. He chose carbolic acid after noting it was used to neutralize odors from fields fertilized with sewage and that livestock grazing on those fields did not become sick. Carbolic acid was used to spray instruments and was applied to surgical wounds and dressings. With significant improvement in wound outcomes related to infection, Lister taught hand washing with antiseptic solution as well as spraying the operative field. Within a few years, the medical profession realized that infection was best prevented by keeping microorganisms from gaining entrance into wounds. Thus, modern surgery and modern antisepsis had come to fruition. Lister’s results were published in the Lancet medical journal in 1867. As others before him had experienced, his ideas and doctrine of antisepsis were not immediately nor universally accepted. The German physician Robert Koch (1827–1912) had isolated, identified, and cultured various disease causing bacteria in the 1880s, and by 1890 the world of surgery had been converted to the antiseptic method. Lister always acknowledged his debt to Pasteur’s work. Other noteworthy advancements augment the story of antiseptics. In 1886 the German surgeon Ernst von Bergmann (1836–1907) became the first to utilize heat sterilization of surgical instruments. This began aseptic surgery (i.e., surgery performed under sterile conditions), which aimed to prevent microorganisms from contacting the wound. Antiseptic surgery came to the United States in 1876 when New York surgeon Lewis A. Stimson (1844–1917) successfully performed a mid-thigh amputation using Lister’s antiseptic methodology. Finally, in 1889, Baltimore surgeon William S. Halsted (1852– 1922) of Johns Hopkins University requested the Goodyear Rubber Company to make thin rubber gloves for his scrub nurse and fiancée, Caroline Hampton. She had DISCOVERIES IN MODERN SCIENCE: EXPLORATION, INVENTION, TECHNOLOGY (c) 2014 Cengage Learning. All Rights Reserved. Apollo 11 developed severe contact dermatitis from the antiseptic and disinfectant solutions. Soon others began using them and by 1899 there was nearly a 100 percent decrease in the infection rate for hernia operations at Johns Hopkins. The major transformation in surgery due to antiseptics and the subsequent benefit to public health was the result of the accumulation of several distinct pathways to discovery after deviating from the established standards of the day. The universal ability of microorganisms to adapt to the environment has led to the concept of resistance, or tolerance, to some antiseptic formulations. Nevertheless, nothing would have a greater impact on the problem of infection until the discovery of penicillin. Anesthesia; Human Microbiome Project; Microbes Cause Disease; Penicillin and Other Antibiotics; Public Health and Sanitation. APOLLO 11 The primary objective of the Apollo 11 mission was to meet the national commitment made by President John F. Kennedy in an address to a joint session of Congress on May 25, 1961: ‘‘Achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to Earth.’’ As an engineering test flight, the scientific objectives of the mission were modest; the main technical purpose of the mission was to demonstrate that the Apollo systems could successfully operate through all stages of the mission. But as the first voyage to carry humans to the surface of another celestial body, Apollo 11 has had lasting historical significance. SEE ALSO BIBLIOGRAPHY Carter, F. C. ‘‘Semmelweis and His Predecessors.’’ Medical History 25 (1981): 57–72. Clark, F. C. ‘‘A Brief History of Antiseptic Surgery.’’ Medical Library and Historical Journal 5 (1907): 145–172. Cope, Z. ‘‘Joseph Lister, 1827–1912.’’ British Medical Journal 2 (1967): 7–8. Holmes, Oliver Wendell. ‘‘The Contagiousness of Puerperal Fever.’’ New England Quarterly Journal of Medicine and Surgery 1 (1842–1843): 503–530. Holmes, Oliver Wendell. Puerperal Fever as a Private Pestilence. Boston: Ticknor and Fields, 1855. Kessin, Richard H., and K. A. Forde. ‘‘How Antiseptic Surgery Arrived in America.’’ Physicians & Surgeons Journal 28, nos. 1–2 (2008). Lathan, S. R. ‘‘Caroline Hampton Halsted: The First to Use Rubber Gloves in the Operating Room.’’ Proceedings of Baylor University Medical Center 23 (2010): 389–392. Pennington, T. H. ‘‘Listerism, Its Decline and Its Persistence: The Introduction of Aseptic Surgical Techniques in Three British Teaching Hospitals, 1890–99.’’ Medical History 39 (1995): 35–60. Trombold, J. M. ‘‘Gangrene Therapy and Antisepsis before Lister: The Civil War Contributions of Middleton Goldsmith of Louisville.’’ American Surgeon 77, no. 9 (2011): 1138–1143. Trotter, Michael. C. ‘‘G. H. Tichenor and His Antiseptic Solution: The Mississippi Years—Part 1 of 2.’’ Journal of the Mississippi State Medical Association 53 (2012): 88–92. Trotter, Michael. C. ‘‘G. H. Tichenor and His Antiseptic Solution: The ‘Dr.’ in Dr. Tichenor—Part 2 of 2.’’ Journal of the Mississippi State Medical Association 53 (2012): 127–130. Michael C. Trotter Doctor of Medicine; Fellow of the American College of Surgeons Delta Regional Medical Center, Greenville, Mississippi PROJECT APOLLO Project Apollo had its origins in the National Aeronautics and Space Administration (NASA) plan for a human spaceflight effort to follow on its initial program, Project Mercury. Apollo’s original objective was to develop a three-person spacecraft capable of both operations in orbit around Earth and of a flight to circle the Moon, without landing. However, in reaction to the April 12, 1961, flight of Soviet cosmonaut Yuri Gagarin (1934–1968), President Kennedy decided that the United States should compete with the Soviet Union for dramatic space achievements, and Apollo was transformed into a program to send Americans to the Moon. Kennedy was willing to back up his decision with a warlike but peaceful commitment of immense financial and human resources, and after Kennedy’s assassination, President Lyndon B. Johnson continued to support Apollo as a memorial to the fallen leader. Between 1961 and 1968 NASA and its industrial and university partners developed the capabilities needed to carry out a lunar landing mission. They included a command module spacecraft in which the three-person crew would make the journey to lunar orbit and from lunar orbit back to Earth; an attached service module that carried the rocket engine that would be fired to take the spacecraft into and out of lunar orbit and other support equipment; and a fragile lunar module designed to go only from lunar orbit to the Moon’s surface and then back to a rendezvous with the command and service modules. The three elements of the Apollo spacecraft were to be launched by the Saturn V, an extremely powerful and massive launch vehicle. Large ground facilities were developed on Merritt Island, Florida, for launch operations; after Kennedy’s assassination, these facilities were named the Kennedy Space Center. In 1967 Apollo planners set out a sequence of missions, each more ambitious than its predecessor, that had to be successfully completed before the first landing mission could be undertaken. The first crewed mission in that DISCOVERIES IN MODERN SCIENCE: EXPLORATION, INVENTION, TECHNOLOGY (c) 2014 Cengage Learning. All Rights Reserved. 21