Guy de Chauliac
Encyclopedia
Guy de Chauliac or Guigonis de Caulhaco (ca. 1300 – 25 July 1368) was a French physician
Physician
A physician is a health care provider who practices the profession of medicine, which is concerned with promoting, maintaining or restoring human health through the study, diagnosis, and treatment of disease, injury and other physical and mental impairments...

 and surgeon
Surgeon
In medicine, a surgeon is a specialist in surgery. Surgery is a broad category of invasive medical treatment that involves the cutting of a body, whether human or animal, for a specific reason such as the removal of diseased tissue or to repair a tear or breakage...

 who wrote a lengthy and influential treatise
Treatise
A treatise is a formal and systematic written discourse on some subject, generally longer and treating it in greater depth than an essay, and more concerned with investigating or exposing the principles of the subject.-Noteworthy treatises:...

 on surgery in Latin, titled Chirurgia Magna
Chirurgia magna
Chirurgia magna , completed in 1363, is a guide of surgery and practical medicine. Its title indicates that it is a reference for surgery . Guy de Chauliac, Pope Clement VI's attending physician, compiled the information from his own field experience and research of historical medical texts...

. It was translated into many other languages (including Middle English
Middle English
Middle English is the stage in the history of the English language during the High and Late Middle Ages, or roughly during the four centuries between the late 11th and the late 15th century....

 circa 1425) and widely read by physicians in late medieval Europe.

Life

Guy de Chauliac was in born in Chaulhac
Chaulhac
Chaulhac is a commune in the Lozère department in southern France.-References:*...

, Lozère
Lozère
Lozère , is a department in southeast France near the Massif Central, named after Mont Lozère.- History :Lozère is one of the original 83 departments created during the French Revolution on March 4, 1790...

, France, into a family of modest means. He began his study of medicine in Toulouse
Toulouse
Toulouse is a city in the Haute-Garonne department in southwestern FranceIt lies on the banks of the River Garonne, 590 km away from Paris and half-way between the Atlantic Ocean and the Mediterranean Sea...

 before to study in Montpellier
Montpellier
-Neighbourhoods:Since 2001, Montpellier has been divided into seven official neighbourhoods, themselves divided into sub-neighbourhoods. Each of them possesses a neighbourhood council....

, a center of medical knowledge in 14th century Europe. He was in Paris between 1315 and 1320, and around 1325, he became a Master of Medicine and Surgery. After receiving his degree, he went to Bologna
Bologna
Bologna is the capital city of Emilia-Romagna, in the Po Valley of Northern Italy. The city lies between the Po River and the Apennine Mountains, more specifically, between the Reno River and the Savena River. Bologna is a lively and cosmopolitan Italian college city, with spectacular history,...

 to study anatomy under Nicola Bertuccio, from whom he may have learned surgical techniques. It is unknown whether de Chauliac applied his surgical studies and knowledge. Charles H. Talbot writes, "It was seemingly from books that [Chauliac] learned his surgery.... He may have used the knife when embalming the bodies of dead popes, but he was careful to avoid it on living patients". Others, including Thevenet, claim that Chauliac moved to Mende
Mende, Lozère
Mende is a commune of France in the Lozère department of which it is the capital.It is the seat of the Roman Catholic Diocese of Mende.-Sights:* Mende Cathedral -External links:* * ,...

 and then Lyons
Lyon
Lyon , is a city in east-central France in the Rhône-Alpes region, situated between Paris and Marseille. Lyon is located at from Paris, from Marseille, from Geneva, from Turin, and from Barcelona. The residents of the city are called Lyonnais....

 to practice medicine after learning the art of surgery from Bertuccio.

Chauliac's reputation as a physician grew quickly. He was invited to the Papal Court in Avignon
Avignon Papacy
The Avignon Papacy was the period from 1309 to 1376 during which seven Popes resided in Avignon, in modern-day France. This arose from the conflict between the Papacy and the French crown....

, France, to serve as a personal physician to Pope Clement VI
Pope Clement VI
Pope Clement VI , bornPierre Roger, the fourth of the Avignon Popes, was pope from May 1342 until his death in December of 1352...

 (1342–1352). He went on become personal physician to Pope Innocent VI
Pope Innocent VI
Pope Innocent VI , born Étienne Aubert; his father was Adhemar Aubert seigneur de Montel-De-Gelas in Limousin province. His niece was Catherine Aubert, Dame de Boutheon, also the wife of Randon II baron de Joyeuse; she is La Fayette's ancestor...

 (1352–1362), and then to Pope Urban V
Pope Urban V
Pope Urban V , born Guillaume Grimoard, was Pope from 1362 to 1370.-Biography:Grimoard was a native of Grizac in Languedoc . He became a Benedictine and a doctor in Canon Law, teaching at Montpellier and Avignon...

 (1362–1370). He died in Avignon in 1368. He completed his great treatise in 1363.

Plagues

When the Black Death
Black Death
The Black Death was one of the most devastating pandemics in human history, peaking in Europe between 1348 and 1350. Of several competing theories, the dominant explanation for the Black Death is the plague theory, which attributes the outbreak to the bacterium Yersinia pestis. Thought to have...

 arrived in Avignon in 1348, physicians fled the city, However, Chauliac stayed on, treating plague patients and documenting symptoms meticulously. He claimed to have been himself infected and survived the disease. Through his observations, Chauliac distinguished between the two forms of the disease, the Bubonic Plague
Bubonic plague
Plague is a deadly infectious disease that is caused by the enterobacteria Yersinia pestis, named after the French-Swiss bacteriologist Alexandre Yersin. Primarily carried by rodents and spread to humans via fleas, the disease is notorious throughout history, due to the unrivaled scale of death...

 and the Pneumonic Plague
Pneumonic plague
Pneumonic plague, a severe type of lung infection, is one of three main forms of plague, all of which are caused by the bacterium Yersinia pestis. It is more virulent and rare than bubonic plague...

. As a precautionary measure, he advised Pope Clement to keep a fire burning continuously in his chamber and to keep visitors out.

The plague was recognized as being contagious although the agent of contagion was unknown; as treatment Chauliac recommended air be purified, venesection (bleeding), and healthy diet. The outbreak of plague and widespread death was blamed on Jews, who were heretics, and in some areas were believed to have poisoned wells; Chauliac fought against this idea, using science to declare the theory untrue.

Chirurgia magna

Chauliac's seminal work on surgery, Chirurgia magna
Chirurgia magna
Chirurgia magna , completed in 1363, is a guide of surgery and practical medicine. Its title indicates that it is a reference for surgery . Guy de Chauliac, Pope Clement VI's attending physician, compiled the information from his own field experience and research of historical medical texts...

, was finished in 1363 in Avignon. In seven volumes, the treatise covers anatomy, bloodletting, cauterization, drugs, anesthetics, wounds, fractures, ulcers, special diseases, and antidotes. Among de Chaulic's treatments he described the use of plasters and he also believed pus
Pus
Pus is a viscous exudate, typically whitish-yellow, yellow, or yellow-brown, formed at the site of inflammatory during infection. An accumulation of pus in an enclosed tissue space is known as an abscess, whereas a visible collection of pus within or beneath the epidermis is known as a pustule or...

 from an infection was beneficial to the healing process. He describes surgical techniques such as intubation
Intubation
Tracheal intubation, usually simply referred to as intubation, is the placement of a flexible plastic or rubber tube into the trachea to maintain an open airway or to serve as a conduit through which to administer certain drugs...

, tracheotomy
Tracheotomy
Among the oldest described surgical procedures, tracheotomy consists of making an incision on the anterior aspect of the neck and opening a direct airway through an incision in the trachea...

, and suturing.

Chauliac quoted frequently from other medical works, written by contemporaries or those written by earlier physicians and anatomists, as he sought to describe the history of medicine. He claimed that surgery began with Hippocrates
Hippocrates
Hippocrates of Cos or Hippokrates of Kos was an ancient Greek physician of the Age of Pericles , and is considered one of the most outstanding figures in the history of medicine...

 and Galen, and was developed in the Arab world by Haly Abbas, Albucasis, and Al-Razi
Al-Razi
Muhammad ibn Zakariyā Rāzī , known as Rhazes or Rasis after medieval Latinists, was a Persian polymath,a prominent figure in Islamic Golden Age, physician, alchemist and chemist, philosopher, and scholar....

. Through his position as papal physician, Chauliac had access to Galen's texts, recently translated by Niccolò da Reggio from original Greek versions, which were more accurate than the Latin translations.

Chirurgia magna was greatly influenced by Islamic scientists, and de Chauliac references Galen and Avicenna
Avicenna
Abū ʿAlī al-Ḥusayn ibn ʿAbd Allāh ibn Sīnā , commonly known as Ibn Sīnā or by his Latinized name Avicenna, was a Persian polymath, who wrote almost 450 treatises on a wide range of subjects, of which around 240 have survived...

 often in the work. The work became popular and was translated into English, French, Hebrew, Dutch, Italian, and Provençal. It was reworked multiple times, including to remove references to Islamic scientists, to the point that the work was no longer recognizable as Chauliac's own.

De Chauliac recognized the importance of Montpellier with respect to surgical study.

Emphasis on anatomy

Galen's influence on Chauliac can clearly be seen in the latter's belief that surgeons should have a thorough understanding of anatomy. He wrote, "A surgeon who does not know his anatomy is like a blind man carving a log". He also describes the dissection of a corpse in accordance with Galen's beliefs about the human body. De Chauliac's (and his contemporaries) unwillingness to look outside of textbook knowledge was one of the reasons that Chauliac's anatomical descriptions are not always correct.

Other works

Three other works were written by Chauliac: Practica astrolabii (De astronomia), an essay on astrology; De ruptura, which describes different types of hernias; and De subtilianti diaeta, describing treatments for cataracts.
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