History & Evolution of Anesthesia: 18th and 19th century advancement in science of anesthesia

Discovery of Anesthesia is one of the most important advancement of modern medicine. The Renaissance saw significant advances in anatomy and surgical technique. However, despite all this progress, surgery remained a treatment of last resort. Largely because of the associated pain, many patients with surgical disorders chose certain death rather than undergo surgery. Although there has been a great deal of debate as to who deserves the most credit for the discovery of general anesthesia, it is generally agreed that certain scientific discoveries in the late 18th and early 19th centuries were critical to the eventual introduction and development of modern anesthetic techniques.

Although anesthesia is known since ancient times, major advances occurred in the late 19th century, which together allowed the transition to modern surgery. An appreciation of the germ theory of disease led rapidly to the development and application of antiseptic techniques in surgery.

18^th century

Joseph Priestley (1733–1804) was an English polymath who discovered nitrous oxide, nitric oxide, ammonia, hydrogen chloride and oxygen. Beginning in 1775, Priestley published his research in Experiments and Observations on Different Kinds of Air. The recent discoveries about these and other gases stimulated a great deal of interest in the European scientific community. Thomas Beddoes (1760–1808) was an physician and teacher of medicine. With an eye toward making further advances in this new science as well as offering treatment for diseases previously thought to be untreatable (such as asthma and tuberculosis), Beddoes founded the Pneumatic Institution for inhalation gas therapy in 1798 at Dowry Square in Clifton, Bristol. Beddoes employed chemist and physicist Humphry Davy (1778–1829) as superintendent of the institute, and engineer James Watt (1736–1819) to help manufacture the gases.

During the course of his research at the Pneumatic Institution, Davy discovered the anesthetic properties of nitrous oxide. Davy, who coined the term “laughing gas” for nitrous oxide, published his findings the following year. Davy was not a physician, and he never administered nitrous oxide during a surgical procedure. He was however the first to document the analgesic effects of nitrous oxide, as well as its potential benefits in relieving pain during surgery.

19^th century

Eastern hemisphere

Hanaoka Seishu (1760–1835) of Osaka was a Japanese surgeon of the Edo period with a knowledge of Chinese herbal medicine, as well as Western surgical techniques. Beginning in about 1785, Hanaoka embarked on a quest to re-create a compound that would have pharmacologic properties similar to Hua Tuo’s mafeisan. After years of research and experimentation, he finally developed a formula which he named tsūsensan . Like that of Hua Tuo, this compound was composed of extracts of several different plants.

The five of these seven ingredients were thought to be elements of Hua Tuo’s anesthetic potion, used 1600 years earlier.

The active ingredients in tsūsensan are scopolamine , hyoscyamine , atropine , aconitine , angelicotoxin. In sufficient quantity, tsūsensan produces a state of general anesthesia and skeletal muscle paralysis. Shutei nakagawa (1773–1850), a close friend of Hanaoka, wrote a small pamphlet titled “Mayaku-ko” (“narcotic powder”) in 1796. Although the original manuscript was lost in a fire in 1867, this brochure described the current state of Hanaoka’s research on general anesthesia.

On 13 October 1804, Hanaoka performed a partial mastectomy for breast cancer on a 60-year-old woman named Kan Aiya, using tsūsensan as a general anesthetic. This is generally regarded today as the first reliable documentation of an operation to be performed under general anesthesia. Hanaoka went on to perform many operations using tsūsensan, including resection of malignant masses, extraction of bladder stones, and extremity amputations. Before his death in 1835, Hanaoka performed more than 150 operations for breast cancer.

Western hemisphere

Friedrich Sertürner (1783–1841) first isolated morphine from opium in 1804, he named it morphine after Morpheus, the Greek god of dreams.

Henry Hill Hickman (1800–1830) experimented with the use of carbon dioxide as an anesthetic in the 1820s. He would make the animal insensible, effectively via almost suffocating it with carbon dioxide, then determine the effects of the gas by amputating one of its limbs. In 1824, Hickman submitted the results of his research to the Royal Society in a short treatise titled Letter on suspended animation: with the view of ascertaining its probable utility in surgical operations on human subjects. The response was an 1826 article in The Lancet titled ‘Surgical Humbug’ that ruthlessly criticised his work. Hickman died four years later at age of 30. Though he was unappreciated at the time of his death, his work has since been positively reappraised and he is now recognised as one of the fathers of anesthesia.

By the late 1830s, Humphry Davy’s experiments had become widely publicized within academic circles in the north eastern United States. Wandering lecturers would hold public gatherings, referred to as “ether frolics”, where members of the audience were encouraged to inhale diethyl ether or nitrous oxide to demonstrate the mind-altering properties of these agents while providing much entertainment to onlookers. Four notable men participated in these events and witnessed the use of ether in this manner. They were William Edward Clarke (1819–1898), Crawford W. Long (1815–1878), Horace Wells (1815–1848), and William T. G. Morton (1819–1868).

While attending undergraduate school in Rochester, New York, in 1839, classmates Clarke and Morton apparently participated in ether frolics with some regularity. In January 1842, by now a medical student at Berkshire Medical College, Clarke administered ether to a Miss Hobbie, while Elijah Pope performed a dental extraction. In so doing, he became the first to administer an inhaled anesthetic to facilitate the performance of a surgical procedure. Clarke apparently thought little of his accomplishment, and chose neither to publish nor to pursue this technique any further. Indeed, this event is not even mentioned in Clarke’s biography.

Crawford W. Long was a physician and pharmacist practicing in Jefferson, Georgia in the mid-19th century. During his time as a student at the University of Pennsylvania School of Medicine in the late 1830s, he had observed and probably participated in the ether frolics that had become popular at that time. At these gatherings, Long observed that some participants experienced bumps and bruises, but afterward had no recall of what had happened. He postulated that that diethyl ether produced pharmacologic effects similar to those of nitrous oxide. On 30 March 1842, he administered diethyl ether by inhalation to a man named James Venable, in order to remove a tumor from the man’s neck. Long later removed a second tumor from Venable, again under ether anesthesia. He went on to employ ether as a general anesthetic for limb amputations and parturition. Long however did not publish his experience until 1849, thereby denying himself much of the credit he deserved.

On 10 December 1844, Gardner Quincy Colton held a public demonstration of nitrous oxide in Hartford, Connecticut. One of the participants, Samuel A. Cooley, sustained a significant injury to his leg while under the influence of nitrous oxide without noticing the injury. Horace Wells, a Connecticut dentist present in the audience that day, immediately seized upon the significance of this apparent analgesic effect of nitrous oxide. The following day, Wells underwent a painless dental extraction while under the influence of nitrous oxide administered by Colton. Wells then began to administer nitrous oxide to his patients, successfully performing several dental extractions over the next couple of weeks.

William T. G. Morton, another New England dentist, was a former student and then-current business partner of Wells. He was also a former acquaintance and classmate of William Edward Clarke (the two had attended undergraduate school together in Rochester, New York). Morton arranged for Wells to demonstrate his technique for dental extraction under nitrous oxide general anesthesia at Massachusetts General Hospital, in conjunction with the prominent surgeon John Collins Warren. This demonstration, which took place on 20 January 1845, ended in failure when the patient cried out in pain in the middle of the operation.

On 30 September 1846, Morton administered diethyl ether to Eben Frost, a music teacher from Boston, for a dental extraction. Two weeks later, Morton became the first to publicly demonstrate the use of diethyl ether as a general anesthetic at Massachusetts General Hospital, in what is known today as the Ether Dome. On 16 October 1846, John Collins Warren removed a tumor from the neck of a local printer, Edward Gilbert Abbott. Upon completion of the procedure, Warren reportedly quipped, “Gentlemen, this is no humbug.” News of this event rapidly traveled around the world. Robert Liston performed the first amputation in December of that year. Morton published his experience soon after Harvard University professor Charles Thomas Jackson (1805–1880) later claimed that Morton stole his idea. Morton disagreed and a lifelong dispute began. For many years, Morton was credited as being the pioneer of general anesthesia in the Western hemisphere, despite the fact that his demonstration occurred four years after Long’s initial experience.

In 1847, Scottish obstetrician James Young Simpson (1811–1870) of Edinburgh was the first to use chloroform as a general anesthetic on a human (Robert Mortimer Glover had written on this possibility in 1842 but only used it on dogs). The use of chloroform anesthesia expanded rapidly thereafter in Europe. Chloroform began to replace ether as an anesthetic in the United States at the beginning of the 20th century. It was soon abandoned in favor of ether when its hepatic and cardiac toxicity, especially its tendency to cause potentially fatal cardiac dysrhythmias, became apparent.

In 1871, the German surgeon Friedrich Trendelenburg (1844–1924) published a paper describing the first successful elective human tracheotomy to be performed for the purpose of administration of general anesthesia.

In 1880, the Scottish surgeon William Macewen (1848–1924) reported on his use of orotracheal intubation as an alternative to tracheotomy to allow a patient with glottic edema to breathe, as well as in the setting of general anesthesia with chloroform. All previous observations of the glottis and larynx (including those of Manuel García, Wilhelm Hack and Macewen) had been performed under indirect vision (using mirrors) until 23 April 1895, when Alfred Kirstein (1863–1922) of Germany first described direct visualization of the vocal cords. Kirstein performed the first direct laryngoscopy in Berlin, using an esophagoscope he had modified for this purpose, he called this device an autoscope.

https://en.wikipedia.org/wiki/History_of_general_anesthesia

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October 20, 2017 1

Ancient Medicine: Introduction of woman as nurses and doctors

Introduction of Woman Nurses and Doctors in 19^th century Modern medicine

Women as physicians

It was very difficult for women to become doctors in any field before the 1970s. Elizabeth Blackwell (1821–1910) became the first woman to formally study and practice medicine in the United States. She was a leader in women’s medical education. While Blackwell viewed medicine as a means for social and moral reform, her student Mary Putnam Jacobi (1842–1906) focused on curing disease. At a deeper level of disagreement, Blackwell felt that women would succeed in medicine because of their humane female values, but Jacobi believed that women should participate as the equals of men in all medical specialties using identical methods, values and insights. In the Soviet Union although the majority of medical doctors were women, they were paid less than the mostly male factory workers.

Women as nurses

Florence Nightingale triggered the professionalization of nursing.

Women had always served in ancillary roles, and as midwives and healers. The professionalization of medicine forced them increasingly to the sidelines. As hospitals multiplied they relied in Europe on orders of Roman Catholic nun-nurses, and German Protestant and Anglican deaconesses in the early 19th century. They were trained in traditional methods of physical care that involved little knowledge of medicine. The breakthrough to professionalization based on knowledge of advanced medicine was led by Florence Nightingale in England. She resolved to provide more advanced training than she saw on the Continent. Britain’s male doctors preferred the old system, but Nightingale won out and her Nightingale Training School opened in 1860 and became a model. The Nightingale solution depended on the patronage of upper class women, and they proved eager to serve. Royalty became involved. In 1902 the wife of the British king took control of the nursing unit of the British army, became its president, and renamed it after herself as the Queen Alexandra’s Royal Army Nursing Corps, when she died the next queen became president.

In the United States, upper middle class women who already supported hospitals promoted nursing. The new profession proved highly attractive to women of all backgrounds, and schools of nursing opened in the late 19th century. They soon a function of large hospitals, where they provided a steady stream of low-paid idealistic workers. The International Red Cross began operations in numerous countries in the late 19th century, promoting nursing as an ideal profession for middle class women.

The Nightingale model was widely copied. Linda Richards (1841 – 1930) studied in London and became the first professionally trained American nurse. She established nursing training programs in the United States and Japan, and created the first system for keeping individual medical records for hospitalized patients. The Russian Orthodox Church sponsored seven orders of nursing sisters in the late 19th century. They ran hospitals, clinics, almshouses, pharmacies, and shelters as well as training schools for nurses. In the Soviet era (1917–1991), with the aristocratic sponsors gone, nursing became a low-prestige occupation based in poorly maintained hospitals.

Woman : Renaissance to Early Modern period 16th-18th century

Catholic women played large roles in health and healing in medieval and early modern Europe. A life as a nun was a prestigious role. Wealthy families provided dowries for their daughters, and these funded the convents, while the nuns provided free nursing care for the poor.

The Catholic elites provided hospital services because of their theology of salvation that good works were the route to heaven. The Protestant reformers rejected the notion that rich men could gain God’s grace through good works, and thereby escape purgatory, by providing cash endowments to charitable institutions. They also rejected the Catholic idea that the poor patients earned grace and salvation through their suffering. Protestants generally closed all the convents and most of the hospitals, sending women home to become housewives, often against their will. On the other hand, local officials recognized the public value of hospitals, and some were continued in Protestant lands, but without monks or nuns and in the control of local governments.

In London, the crown allowed two hospitals to continue their charitable work, under nonreligious control of city officials. The convents were all shut down but Harkness finds that women, some of them former nuns, were part of a new system that delivered essential medical services to people outside their family. They were employed by parishes and hospitals, as well as by private families, and provided nursing care as well as some medical, pharmaceutical, and surgical services.

Meanwhile, in Catholic lands such as France, rich families continued to fund convents and monasteries, and enrolled their daughters as nuns who provided free health services to the poor. Nursing was a religious role for the nurse, and there was little call for science.

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July 10, 2017 0

National Doctor’s Day: India, USA

India

Also celebrated on July 1 all across India to honor the legendary physician and the second Chief Minister of West Bengal, Dr Bidhan Chandra Roy. He was born on July 1, 1882 and died on the same date in 1962, aged 80 years. Dr Roy was honored with the country’s highest civilian award, Bharat Ratna on February 4, 1961. The Doctor’s Day is observed today to lay emphasis on the value of doctors in our lives. It is an occasion to give them their due respect through commemorating one of their greatest representatives. India has shown remarkable improvements in the medical field and July 1 pays a perfect tribute to all the doctors who have made relentless efforts towards achieving this goal irrespective of the odds.

United States

In the United States, National Doctors’ Day is a day on which the service of physicians to the nation is recognized annually. The idea came from Eudora Brown Almond, wife of Dr. Charles B. Almond, and the date chosen was the anniversary of the first use of general anesthesia in surgery. On March 30, 1842, in Jefferson, Georgia, Dr Crawford Long used ether used to anesthetize a patient, James Venable, and painlessly excised a tumor from his neck.

The first Doctors’ Day observance was March 30th, 1933, in Winder, Georgia. This first observance included the mailing of cards to the physicians and their wives, flowers placed on graves of deceased doctors, including Dr. Long, and a formal dinner in the home of Dr. and Mrs. William T. Randolph. After the Barrow County Alliance adopted Mrs. Almond’s resolution to pay tribute to the doctors, the plan was presented to the Georgia State Medical Alliance in 1933 by Mrs. E. R. Harris of Winder, president of the Barrow County Alliance. On May 10, 1934, the resolution was adopted at the annual state meeting in Augusta, Georgia. The resolution was introduced to the Women’s Alliance of the Southern Medical Association at its 29th annual meeting held in St. Louis, Missouri, November 19-22, 1935, by the Alliance president, Mrs. J. Bonar White. Since then, Doctors’ Day has become an integral part of and synonymous with, the Southern Medical Association Alliance. Through the years, the red carnation has been used as the symbol of Doctors’ Day.

Permanent link: https://en.wikipedia.org/w/index.php?title=National_Doctors%27_Day&oldid=785811878

https://en.wikipedia.org/wiki/National_Doctors%27_Day

India

But in recent times, sadly “ Happy Doctor’s Day” is just a Tokenism, a hollow slogan”.

United States

Permanent link: https://en.wikipedia.org/w/index.php?title=National_Doctors%27_Day&oldid=785811878

https://en.wikipedia.org/wiki/National_Doctors%27_Day

July 7, 2017 1

Ancient Medicine during Renaissance to Early Modern period 16th-18th century

The Renaissance brought an intense focus on scholarship to Christian Europe. A major effort to translate the Arabic and Greek scientific works into Latin emerged. Europeans gradually became experts not only the ancient writings of the Romans and Greeks, but in the contemporary writings of Islamic scientists. During the later centuries of the Renaissance came an increase in experimental investigation, particularly in the field of dissection and body examination, thus advancing our knowledge of human anatomy.

The development of modern neurology began in the 16th century with Vesalius, who described the anatomy of the brain and other organs. He had little knowledge of the brain’s function, thinking that it resided mainly in the ventricles. Over his lifetime he corrected over 200 of Galen’s mistakes. Understanding of medical sciences and diagnosis improved, but with little direct benefit to health care. Few effective drugs existed, beyond opium and quinine. Folklore cures and potentially poisonous metal-based compounds were popular treatments. Independently from Ibn al-Nafis, Michael Servetus rediscovered the Pulmonary circulation. But this discovery did not reach the public because it was written down for the first time in the “Manuscript of Paris” in 1546, and later published in the theological work which he paid with his life in 1553. Later this was perfected by Renaldus Columbus and Andrea Cesalpino. Later William Harvey correctly described the circulatory system. The most useful tomes in medicine used both by students and expert physicians were De Materia Medica and Pharmacopoea

Paracelsus

Paracelsus (1493–1541), was an erratic and abusive innovator who rejected Galen and bookish knowledge, calling for experimental research, with heavy doses of mysticism, alchemy and magic mixed in. He rejected sacred magic (miracles) under Church auspices and looked for cures in nature. He preached but he also pioneered the use of chemicals and minerals in medicine. His hermetical views were that sickness and health in the body relied on the harmony of man (microcosm) and Nature (macrocorm). He took an approach different from those before him, using this analogy not in the manner of soul-purification but in the manner that humans must have certain balances of minerals in their bodies, and that certain illnesses of the body had chemical remedies that could cure them.. Most of his influence came after his death. Paracelsus is a highly controversial figure in the history of medicine, with most experts hailing him as a Father of Modern Medicine for shaking off religious orthodoxy and inspiring many researchers; others say he was a mystic more than a scientist and downplay his importance.

Padua and Bologna

University training of physicians began in the 13th century.

The University of Padua was founded about 1220 by walkouts from the University of Bologna, and began teaching medicine in 1222. It played a leading role in the identification and treatment of diseases and ailments, specializing in autopsies and the inner workings of the body. Starting in 1595, Padua’s famous anatomical theatre drew artists and scientists studying the human body during public dissections. The intensive study of Galen led to critiques of Galen modeled on his own writing, as in the first book of Vesalius’s De Humani Corporis Fabrica. Andreas Vesalius held the chair of Surgery and Anatomy and in 1543 published his anatomical discoveries in De Humani Corporis Fabrica. He portrayed the human body as an interdependent system of organ groupings. The book triggered great public interest in dissections and caused many other European cities to establish anatomical theatres.

At the University of Bologna, the training of physicians began in 1219. The Italian city attracted students from across Europe. Taddeo Alderotti built a tradition of medical education that established the characteristic features of Italian learned medicine and was copied by medical schools elsewhere. Turisanus (d. 1320) was his student. The curriculum was revised and strengthened in 1560–1590. A representative professor was Julius Caesar Aranzi (Arantius) (1530–89). He became Professor of Anatomy and Surgery at the University of Bologna in 1556, where he established anatomy as a major branch of medicine for the first time. Aranzi combined anatomy with a description of pathological processes, based largely on his own research, Galen, and the work of his contemporary Italians. Aranzi discovered the ‘Nodules of Aranzio’ in the semilunar valves of the heart and wrote the first description of the superior levator palpebral and the coracobrachialis muscles. His books (in Latin) covered surgical techniques for many conditions, including hydrocephalous, nasal polyp, goiter and tumours to phimosis, ascitis, haemorrhoids, anal abscess and fistulae.

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June 26, 2017 0

Ancient medicine: The Middle Ages AD 400 to 1400:Europe and Islamic medicine:

Ancient medicine: medicine in medieval Islamic World

The Islamic civilization rose to primacy in medical science as its physicians contributed significantly to the field of medicine, including anatomy, ophthalmology, pharmacology, pharmacy, physiology, surgery and the pharmaceutical sciences. The Arabs were influenced by ancient Indian, Greek, Roman and Byzantine medical practices, and developed these further. Galen and Hippocrates were pre-eminent authorities. The translation of 129 of Galen’s works into Arabic by the Nestorian Christian Hunayn ibn Ishaq and his assistants, and in particular Galen’s insistence on a rational systematic approach to medicine, set the template for Islamic medicine, which rapidly spread throughout the arab Empire.

Ancient medicine: medieval medicine of Europe

After A.D. 400, the study and practice of medicine in the Western Roman Empire went into deep decline. Medical services were provided, especially for the poor, in the thousands of monastic hospitals that sprang up across Europe, but the care was rudimentary and mainly palliative.

Most of the writings of Galen and Hippocrates were lost to the West, with the summaries and compendia of St. Isidore of Seville being the primary channel for transmitting Greek medical ideas. The Carolingian renaissance brought increased contact with Byzantium and a greater awareness of ancient medicine, but only with the twelfth century renaissance and the new translations coming from Muslim and Jewish sources in Spain, and the fifteenth century flood of resources after the fall of Constantinople did the West fully recover its acquaintance with classical antiquity.

Wallis identifies a prestige hierarchy with university educated physicians on top, followed by learned surgeons; craft-trained surgeons; barber surgeons; itinerant specialists such as dentist and oculists; empirics; and midwives.

Schools

The first medical schools were opened in the 9th century, most notably the Schola Medica at Salerno in southern Italy. The cosmopolitan influences from Greek, Latin, Arabic, and Hebrew sources gave it an international reputation as the Hippocratic City. Students from wealthy families came for three years of preliminary studies and five of medical studies. By the thirteenth century the medical school at Montpellier began to eclipse the Salernitan school. In the 12th century universities were founded in Italy, France and England which soon developed schools of medicine. The University of Montpellier in France and Italy’s University of Padua and University of Bologna were leading schools. Nearly all the learning was from lectures and readings in Hippocrates, Galen, Avicenna and Aristotle. There was little clinical work or dissection.

Humours

The underlying principle of most medieval medicine was Galen’s theory of humours. This was derived from the ancient medical works, and dominated all western medicine until the 19th century. The theory stated that within every individual there were four humours, or principal fluids – black bile, yellow bile, phlegm, and blood, these were produced by various organs in the body, and they had to be in balance for a person to remain healthy. Too much phlegm in the body, for example, caused lung problems; and the body tried to cough up the phlegm to restore a balance. The balance of humours in humans could be achieved by diet, medicines, and by blood letting, using leeches. The four humours were also associated with the four seasons, black bile-autumn, yellow bile-summer, phlegm-winter and blood-spring.

Healing included both physical and spiritual therapeutics, such as the right herbs, a suitable diet, clean bedding, and the sense that care was always at hand. Other procedures used to help patients included the Mass, prayers, relics of saints, and music used to calm a troubled mind or quickened pulse.

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June 25, 2017 0

Ancient Medicine: Greece and Roman Empire

Around 800 BCE Homer in The Iliad gives descriptions of wound treatment by the two sons of Asklepios, the admirable physicians Podaleirius and Machaon and one acting doctor, Patroclus. Because Machaon is wounded and Podaleirius is in combat Eurypylus asks Patroclus to cut out this arrow from my thigh, wash off the blood with warm water and spread soothing ointment on the wound. Asklepios like Imhotep becomes god of healing over time.

Temples dedicated to the healer-god Asclepius, known as Asclepieia, functioned as centers of medical advice, prognosis, and healing. At these shrines, patients would enter a dream-like state of induced sleep known as enkoimesis . Asclepeia provided carefully controlled spaces conducive to healing and fulfilled several of the requirements of institutions created for healing.. Some of the surgical cures listed, such as the opening of an abdominal abscess or the removal of traumatic foreign material, are realistic enough to have taken place, but with the patient in a state of enkoimesis induced with the help of soporific substances such as opium. Alcmaeon of Croton wrote on medicine between 500 and 450 BCE. He argued that channels linked the sensory organs to the brain, and it is possible that he discovered one type of channel, the optic nerves, by dissection.

Hippocrates

A towering figure in the history of medicine was the physician Hippocrates of Kos (c. 460 – c. 370 BCE), considered the father of Western medicine. The Hippocratic Corpus is a collection of around seventy early medical works from ancient Greece strongly associated with Hippocrates and his students. Most famously, Hippocrates invented the Hippocratic Oath for physicians, which is still relevant and in use today.

Hippocrates and his followers were first to describe many diseases and medical conditions. He is given credit for the first description of clubbing of the fingers, an important diagnostic sign in chronic suppurative lung disease, lung cancer and cyanotic heart disease. For this reason, clubbed fingers are sometimes referred to as “Hippocratic fingers”. Hippocrates was also the first physician to describe Hippocratic face in Prognosis.

Hippocrates began to categorize illnesses as acute, chronic, endemic and epidemic, and use terms such as, “exacerbation, relapse, resolution, crisis, paroxysm, peak, and convalescence.

Another of Hippocrates’s major contributions may be found in his descriptions of the symptomatology, physical findings, surgical treatment and prognosis of thoracic empyema. Hippocrates was the first documented person to practice cardiothoracic surgery, and his findings are still valid.

Some of the techniques and theories developed by Hippocrates are now put into practice by the fields of Environmental and Integrative Medicine. These include recognizing the importance of taking a complete history which includes environmental exposures as well as foods eaten by the patient which might play a role in his or her illness.

Herophilus and Erasistratus

Two great Alexandrians laid the foundations for the scientific study of anatomy and physiology, Herophilus of Chalcedon and Erasistratus of Ceos. Other Alexandrian surgeons gave us ligature (hemostasis), lithotomy, hernia operations, ophthalmic surgery,plastic surgery, methods of reduction of dislocations and fractures, tracheostomy.

Herophilus of Chalcedon, working at the medical school of Alexandrians placed intelligence in the brain, and connected the nervous system to motion and sensation. Herophilus also distinguished between veins and arteries, noting that the latter pulse while the former do not. He and his contemporary, Erasistratus of Chios, researched the role of veins and nerves, mapping their courses across the body. Erasistratus connected the increased complexity of the surface of the human brain compared to other animals to its superior intelligence. In . Erasistratus ‘ physiology, air enters the body, is then drawn by the lungs into the heart, where it is transformed into vital spirit, and is then pumped by the arteries throughout the body

Galen

The Greek Galen (129–c. 216 CE) was one of the greatest physicians of the ancient world, studying and traveling widely in ancient Rome. He dissected animals to learn about the body, and performed many audacious operations—including brain and eye surgeries— that were not tried again for almost two millennia. In Ars medica (“Arts of Medicine”), he explained mental properties in terms of specific mixtures of the bodily parts.

Galen’s medical works were regarded as authoritative until well into the Middle Ages. Galen left a physiological model of the human body that became the mainstay of the medieval physician’s university anatomy curriculum, but it suffered greatly from stasis and intellectual stagnation because some of Galen’s ideas were incorrect; he did not dissect a human body nor did the medieval lecturers.

The Renaissance rediscovered Galen. In 1523 Galen’s On the Natural Faculties was published in London. In the 1530s Belgian anatomist and physician Andreas Vesalius launched a project to translate many of Galen’s Greek texts into Latin. Vesalius’s most famous work, De humani corporis fabrica was greatly influenced by Galenic writing and form.

Ancient Roman Medicine contributions

The Romans invented numerous surgical instruments, including the first instruments unique to women, as well as the surgical uses of forceps, scalpels, cautery, cross bladed scissors, the surgical needle, and speculas. Romans also performed cataract surgery.

The Roman army physician Dioscorides (c. 40–90 AD), was a Greek botanist and pharmacologist. He wrote the encyclopedia De Materia Medica describing over 600 herbal cures, forming an influential pharmacopoeia which was used extensively for the following 1,500 years.

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June 20, 2017 0

Eastern hemisphere

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