History of Medicinee Dr. Nadir Kheir Assistant Professor & Coordinator of Continuing Professional Pharmacy Development College of Pharmacy, Qatar University, Doha, Qatar NK- 10/6/2012-CoP- 1 Learning Outcomes By the end of this lectures, you will be able to: 1. Explain the relevance of studying some aspects of the history of medicine 2. Describe the progress of the medical profession from its early times to the current time 3. Name several individuals that played, through history, important roles in the path of medicine and describe their contributions 4. Discuss land mark and historic events in the history of medicine that lead to significant changes in medicine 5. Identify successes and challenges facing medical care today October 6, 2012 2 References • Delegation of the European Union to the USA. Healthcare in the 21st Century: seeking sustainable, equitable and effective solutions, 2008. Available in: http://www.eurunion.org/News/eunewsletters/EUFocus/2008/EUFocus-Healthcare-5-2008.pdf • US National Library of Medicine. History of Medicine. Accessed on 27 Sep 2011. Available in: http://www.nlm.nih.gov/hmd/ • Selin H, 2008. Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures (2nd edition). Berlin: Kluwer Academic Publishers October 6, 2012 3 Why… • Should you know about the history of medicine? October 6, 2012 4 An Old Necessity • Early civilization held form beliefs to try explaining birth, death, and disease • Illness was thought to result from evil spirit, magic, witchcraft • While first humans used supernatural forces to heal their sick, modern medicine relies on science • DNA and research has replaced spirits and witchcraft October 6, 2012 5 History of Medicine: Lessons to Learn • Ideas and practices developed over the centuries • Ancient Greeks set the foundations for modern diagnostic techniques • Leonardo da Vinci was amongst the first to dissect the human body to learn how it works • Medical students still learn about anatomy in the same way • Continuous evolution: each generation builds on the knowledge of earlier times October 6, 2012 6 The Ancient Times- 8000 BC • Evidence from archaeologists who have excavated and explored ancient sites • People got sick, needed treatment • Cave paintings and symbolic artifacts suggest early humans believed in spirits and supernatural forces • Ancient medications included: animal blood, plant roots, herbs, casting spells to heal October 6, 2012 7 Ancient Surgeries • Amputation and trepanning • Skulls with massive holes • A deliberate operation carried out whilst the person was still alive • Evidence that patients survived and bone grew back What might be the health conditions that led to trepanning? What complications that might follow the procedure? October 6, 2012 8 The Egyptians- 2000 BC • Old Egypt developed the closest an ancient medicine can get to a true medical science • Herodotus described the Egyptians as "the healthiest of all men, next to the Libyans”! • The first to specialize (each physician is a healer of one disease and no more) • Developed the fields of anatomy, public health, and clinical diagnostics • Also: The goddess Sekhmet was believed to cause or cure diseases and priests played a large part in Egyptian medicine October 6, 2012 9 Egyptians: Papyrus Writing • The oldest text books • Describe medical techniques and used compression on a wound to stop bleeding • Specialists in obstetrics and gynecology • Their pharmacists prepared prescriptions of ointments, potions, inhalers and pills by processing plant materials • They used preparations including opium, cannabis, linseed oil and senna Medicines were used to help relieve pain but were not thought to play any other role in the healing process October 6, 2012 10 The Egyptian Flu Remedy: To make them feel better, the patient should be given the milk of a mother who has given birth to a boy. The following spell was to be made to get rid of the cold: May you flow out, catarrh, son of catarrh, who breaks the bones, who destroys the skull, who hacks in the marrow, who causes the seven openings in the head to ache. Ebers Papyrus October 6, 2012 11 The Greeks and Romans- 450 BC to 300 AD • Home to one of the earliest civilizations • Literature, fine art, mathematics, philosophy flourished • The Greeks believed in many gods but used science to understand the world around them • Most famous Greek: Hippocrates October 6, 2012 12 Hippocrates • Born in 460 BC • One of the most outstanding figures in the history of medicine • His contributions revolutionized medicine • This helped establishing medicine as a profession • Held opposing views that sent him to 0 years in prison in Greece The first person to believe that diseases were caused naturally and not as a result of superstition, and gods October 6, 2012 13 Hippocrates Theory • A balance in the body between humors: blood, phlegm, black bile, and yellow bile • Sickness indicates an imbalance between these 4 humors • Treatment usually bleeding or induced vomiting • This formed the basis of medical treatments well into medieval times October 6, 2012 14 The Theory of Humorism Blood Blood gave a person a lively personality and lots of energy. They would enjoy life and the arts. Phlegm Phlegm made a person feel lethargic or have a dull personality. Black bile Black bile caused depression and sadness. Yellow bile Yellow bile influenced a person's temperament, and it caused anger and a fiery temper. Although this theory was later abandoned as incorrect, the Hippocratic school or Koan applied general diagnoses and passive treatments, and focused on patient care and prognosis, not diagnosis Criticized for been too passive October 6, 2012 Selin H, 2008. Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures (2nd edition). Berlin: Kluwer Academic Publishers 15 Hippocrates’ Most Outstanding Contributions in Medicine • Introduction of the foundations of professionalism • Advocated: discipline and rigour • On the Physician: physicians must be well-kempt, honest, calm, understanding, and serious • Physicians must pay careful attention to all aspects of practice • Detailed specifications for, "lighting, personnel, instruments, positioning of the patient, and techniques of bandaging and splinting“ • Strict documentation of observations and findings October 6, 2012 Selin H, 2008. Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures (2nd edition). Berlin: Kluwer Academic Publishers 16 Roman Contribution: Galen • Greek immigrant to Rome • Private doctor for Gladiators! • Dissected animals to know how the body works • Helped in progress in surgery and wound care, treating bladder stones, hernias, and cataracts The Romans realized a relationship between dirt and disease They built aqueducts to supply clean drinking water and sewers to remove wastes safely They encouraged personal hygiene to reduce disease and Roman baths were places to socialize as well as stay clean October 6, 2012 17 The Middle Ages and Medicine- 500 to 1400 AD • Following the fall of the Roman Empire, things deteriorated • Hygiene lost, diseases became endemic • Illness was again perceived as punishment by the Gods • Herbal medicines and other remedies were outlawed by the Church • Nuns and Monks cared for the ill October 6, 2012 Selin H, 2008. Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures (2nd edition). Berlin: Kluwer Academic Publishers 18 The Plague • Black death, or Bubonic Plague, attacked in 1347 (contagious Pneumonia) • Only treatments: superstition, prayer, and recipes to rid the air off miasma or bad air • Broke out in Istanbul and was carried by traders to Europe • Killed up to 90% of the population • Main Culprit: October 6, 2012 Fleas and Rats infestation which helped carrying the microbes to all villages and cities 19 Arabs & Muslims: 700-1500 AD • Arabia and Persia became centre of scientific and medical knowledge after the fall of the Romans and the corrupt and backward Europe • Translated Greek and Roman writings and refined their science • Focused on life style and health (exercise, diet) • Used alcohol to disinfect wounds • Created to first proper hospitals: medical and surgical wards, operating theatres, and pharmacies for the dispensing of medicines October 6, 2012 20 AVICENNA (980-1037 AD) The Prince of Physicians • 'Abu 'Ali al-Husin ibn 'Abdullah ibn Sina wrote on numerous subjects, everything from philosophy to law • His most famous book was, "AlQanun fi-l-tibb" (The Canon of Medicine • Translated and used by Western Medical Universities until the 17th century • He seems to have extensively studied herbal medicine from numerous (other than western) cultures such as Arabian, Indian and Persian etc. The most famous scientist of Islam and one of • October 6, 2012 the greatest of all times 21 856-925 A.D: Abū Bakr Muhammad ibn Zakarīya alRāzi Razi introduces the use of mercurial ointments and developed mortars, flasks, and spatulas, which are still used in pharmacies today. Razi also contributed to the ethics and professional ideals of medicines, and was the first to call for what is now known as continuing medical education and life-long learning. The first to discover allergic asthma and the first to write articles on allergy, allergic rhinitis, fever, and immunology http://www.muslimheritage.com/topics/default.cfm?ArticleID=692 October 6, 2012 22 Famous Muslim Pharmacy Pioneers Abu al-Qasim al-Zahrawi (Abulcasis) (936-1013 AD) was the 1st to prepare medicines by sublimation and distillation. Sabur Ibn Sahl (died in 869 AD), was the 1st physician to initiate pharmacopoeia, describing a large variety of drugs and remedies for ailments. Al-Biruni (973-1050 AD) wrote the most valuable Islamic works on pharmacology entitled Kitab al-Saydalah (The Book of Drugs) detailing the properties of drugs and outlined the role of pharmacy and the pharmacist October 6, 2012 23 The Renaissance- 1400-1700 AD • A period in which there was a revival in Europe of the ideas of ancient Rome and Greece • Arts, science, music flourished • The creation of printing press revolutionized information technology and spread information around Europe • The printing press was the most astonishing and effective discovery of the day October 6, 2012 24 The Renaissance- 1400-1700 AD • Medicine remained dominated by the church • This was the time of geniuses like Leonardo da Vinci and Michelangelo • Books were translated from Arabic medical texts • Andreas Vesalius and Leonardo Da Vinci dissected human bodies and made the first anatomical drawings • The church permitted the dissection of criminals or 'sinners' • Doctors learned about anatomy from watching these dissections • Sometimes the criminal was alive at the start of proceedings as part of their punishment! October 6, 2012 25 The Vitruvian Man is a world-renowned drawing created by Leonardo da Vinci circa 1487 http://www.worldmysteries.com/sci_17_vm.htm October 6, 2012 26 The Renaissance- : Important Discoveries • 1628 AD: William Harvey published that the heart acts as a pump which circulates blood around the body • Emergence of the view that the body is made up of specialized systems that work together • Influential thinkers included Copernicus and Galileo and Francis Bacon • The new scientific method led to great contributions in the fields of astronomy, physics, biology, and anatomy October 6, 2012 27 18th and 19th centuries • The industrial revolution • People's understanding of the body increased • Scientific knowledge spread rapidly because scientists began to publish their work • A Dutch clockmaker, Anton Van Leeuwenhoek, made one of the earliest microscopes • Robert Hooke observed cells for the first time • In 1661 the Italian Marcello Malpighi identified capillaries, the structure of the kidneys, lungs, skin and spleen • His research focused in botany, embryology, human anatomy, and pathology October 6, 2012 28 The 18th and 19th Centuries • Edward Jenner invented the Smallpox vaccine • Jenner noticed that individuals who had contracted cowpox (the cow's equivalent of smallpox) rarely caught the deadly human version • In 1796 he deliberately infected a boy with the pus from a cowpox sore • the infection protected the boy who never caught smallpox • This marked the beginning of modern vaccination • the German Physicist Wilhelm Roentgen discovered the X-ray! October 6, 2012 29 18th and 19th centuries • Louis Pasteur and Robert Koch discovered that infections were caused by certain bacteria or germs • The study of microbes, or microbiology, was born • The pharmaceutical industry was born • Florence Nightingale realized that 80% of soldiers died from infections they caught in the • She then embarked on a campaign to modernize hospitals October 6, 2012 The 20th century • Insulin: Banting and Best's work (1922) • Penicillin: discovery and development by Fleming, Florey and Chain (1928- ) • Other medicines developed and produced by a growing pharmaceutical industry • Imaging techniques progressed to Ultrasound, magnetic resonance imagery (MRI) and computer tomography (CT) scans October 6, 2012 DNA science: genome project, pharmacogenetics and genomics 31 http://purpleopurple.com/biography/Short-Biography/alexander-fleming.html October 6, 2012 32 The 21st Century: Triumphs • Eradication of smallpox • The near-eradication of poliomyelitis • Better treatment of AIDS, tuberculosis, leprosy and malaria • Ambitious global immunizations programs • Evidence from research can improve the quality of health policy, programs and services and result in better use of limited health resources October 6, 2012 33 The 21st Century: Features • • • • • An ethical profession Prolongation of life, and ageing population Emergence of the importance of QoL Inequalities and equity problems Medical challenges: Cancer, AD & Dementia, MS, PD • Interprofessional Education October 6, 2012 34 New Trends in Medicine • Reconciliation of individual needs with available finances, an aging population, rising expectations for treatment, and costly research • Promoting Health and Preventing Disease • Special focus on health information, surveillance and prevention of communicable diseases, tobacco control, environment and health, sustainable health development, and health research October 6, 2012 35 Quiz: What is the biggest advancement in health services that is about to take place as a result of National Health Strategy 2011-2016 ? October 6, 2012 36 Questions? October 6, 2012 37
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