ABSTRACT
Our knowledge regarding the anatomophysiology of the cardiovascular system (CVS) has progressed since the fourth millennium BC. In Egypt (3500 BC), it was believed that a set of channels are interconnected to the heart, transporting air, urine, air, blood, and the soul. One thousand years later, the heart was established as the center of the CVS by the Hippocratic Corpus in the medical school of Kos, and some of the CVS anatomical characteristics were defined. The CVS was known to transport blood via the right ventricle through veins and the pneuma via the left ventricle through arteries. Two hundred years later, in Alexandria, following the development of human anatomical dissection, Herophilus discovered that arteries were 6 times thicker than veins, and Erasistratus described the semilunar valves, emphasizing that arteries were filled with blood when ventricles were empty. Further, 200 years later, Galen demonstrated that arteries contained blood and not air. With the decline of the Roman Empire, Greco-Roman medical knowledge about the CVS was preserved in Persia, and later in Islam where, Ibn Nafis inaccurately described pulmonary circulation. The resurgence of dissection of the human body in Europe in the 14th century was associated with the revival of the knowledge pertaining to the CVS. The main findings were the description of pulmonary circulation by Servetus, the anatomical discoveries of Vesalius, the demonstration of pulmonary circulation by Colombo, and the discovery of valves in veins by Fabricius. Following these developments, Harvey described blood circulation.
O conhecimento da anatomofisiologia do Sistema Cardiovascular (SCV) progride desde o quarto milênio AC. No Egito (3500 AC), acreditava-se que um conjunto de canais conectava-se ao coração, transportando ar, urina, ar, sangue e a alma. Mil anos após, o Corpo Hipocrático, na escola médica de Kós, estabeleceu o coração como o centro do SCV, definindo algumas características deste órgão. O SCV transportava sangue via ventrículo direito pelas veias, e o pneuma via ventrículo esquerdo pelas artérias. Duzentos anos depois, em Alexandria, com o aparecimento da dissecção anatômica do corpo humano, Herophilus descobriu que as artérias eram seis vezes mais espessas que as veias, enquanto que Erasistratus descreveu as válvulas semilunares, enfatizando que as artérias eram preenchidas por sangue quando o ventrículo esquerdo se esvaziava. Duzentos anos depois, Galeno demonstrou que as artérias continham sangue, não ar. Com o declínio do Império Romano, todo o conhecimento médico Greco-romano do SCV foi preservado na Pérsia, e posteriormente no Islã, onde Ibn-Nafis descreveu incompletamente a circulação pulmonar. Aqui, deve-se enfatizar a incompleta descrição da circulação pulmonar por Ibn-Nafis. A ressurgência da dissecção do corpo humano na Europa no século XIV é associada ao renascimento do conhecimento do SCV. Os principais marcos foram a descrição da circulação pulmonar por Servetus, as descobertas anatômicas de Vesalius, a demonstração da circulação pulmonar por Colombo, e a descoberta das válvulas das veias por Fabricius. Tal contexto abriu o caminho para Harvey descobrir a circulação do sangue.
Subject(s)
History, Ancient , History, Medieval , Humans , Anatomy/history , Cardiovascular Physiological Phenomena , Cardiovascular System/anatomy & histology , Physiology/history , Cardiology/history , Egypt , Greece , Medical Illustration , Roman WorldABSTRACT
La sepsis como complicación temible del trauma ha acompañado al hombre a través de la historia en especial en la antigüedad. En el presente trabajo se analiza la evolución histórica del controlquirúrgico de la sepsis desde el Antiguo Egipto hasta la Edad Media. Se describe cómo los diferentes tratamientos tuvieron una evolución paradójica: empezando desde una relativa cura apiógena de los egipcios y alejandrinos, hasta el irrefrenable deseo de ver supurar la lesión, típico en la EdadMedia. También se exponen las causas de la ambigüedad de los griegos a la hora de promover o limitar la supuración, sustentadas en el humoralismo clásico, y cómo esta concepción fue la semilla del dogma galénico la pus es buena y laudable, dogma que marcó la pauta del cuidado de las heridas durante más de mil años, y que fue responsable, junto con la pérdida de valiosos conocimientos quirúrgicos en el Medioevo, del establecimiento de la cauterización como tratamiento de elección para muchos tipos de lesión. Finalmente, se presentan las razones epistemológicas del fracaso del intento de derrumbar el dogma galénico durante el siglo XIII.
Sepsis, as a fearsome complication of trauma, has accompanied mankind throughout history, particularly in the Antiquity. In this article the historical evolution of surgical sepsis control and of the importance of suppuration is reviewed, from the Ancient Egypt through the Middle Ages. The evolutionof different therapeutic approaches for wounds is described, from the non-suppurative healing of the Egyptians and Alexandrians to the irrepressible desire of seeing wound suppuration that was common in the Middle Ages. The causes of the ambiguity of Greeks concerning the promotion or limitation of suppuration are presented. They were based on the classical theory of Humoralism. This conception became the framework of the Galenic dogma expressed as the good and laudable pus, which served as the basisfor wound care during more than one thousand years. It was responsible, together with the loss of valuablesurgical knowledge during the Middle Ages, of the establishement of cauterization as the treatment of choice for different types of lesions. The epistemological reasons for the failure to overthrow the Galenic dogma duringthe XIII Century are also discussed.