Carl Wernicke of the Wernicke Area: A Historical Review.

The Wernicke area, also known as Brodmann area 22, is located in the posterior segment of the superior temporal gyrus in the dominant hemisphere. Carl Wernicke, a German neurologist, described this area in 1874. The life story of Carl Wernicke, a 19th-century medical genius, remains an inspiration for all neuroscientists even a hundred years later. We outline Wernicke's life story and academic achievements in neurosurgery, neurology, and psychiatry. We explore his remarkable ability to turn his many setbacks into steps forward, his controversial foray into psychiatry, and his wide-ranging set of contributions, including his work on external ventricular drainage for hydrocephalus and encephalopathy; his description of the eponymous Wernicke area; and his field-defining work on aphasia. This historical review attempts to bring to life a seminal figure in the neurosciences, providing an insight into his visionary thought process.

Sir Marc Armand Ruffer, MD: The early years, 1878-1896.

A founder of paleopathology, the study of disease in ancient human remains, Sir Marc Armand Ruffer, MD (1859-1917) served in Egypt, from 1896 to 1917, as a public-health administrator, epidemiologist, and pathologist. He was professor of Bacteriology at the Cairo Medical School, President of the Sanitary, Maritime, and Quarantine Council, member of the Indian Plague Commission, and author or co-author of 40 papers in palaeopathology. However, little is known of his early professional life, which encompassed his education, medical training, and research in England and France. The pre-Egyptian period, 1878 to 1896, was a time of extraordinary activity. Acquiring four academic Degrees at Oxford University and clinical experience at the University College Hospital, London (1878-1889), he was the clinical assistant of Louis Pasteur during the anti-rabies campaign (autumn 1889), interim President of the British Institute of Preventive Medicine (1893-1896), and immunology researcher (1890-1895), in London and Paris, under the guidance of Élie Metchnikoff (1845-1916). Ruffer developed the diphtheria antitoxin in Britain. In addition to a dissertation on hydrocephalus, he composed or co-authored 34 papers. A prolific writer, linguist, clinician, and administrator, he explored several medical sub-disciplines before concentrating on palaeopathology.

A case of hydrocephalus in a child from early modern period Zumberak, Croatia.

OBJECTIVE: To evaluate the etiology of a subadult skeleton exhibiting increased size of the neurocranium and upper face. MATERIALS: Skeletal remains of a child aged between 1.5-2 years from the Early Modern Period (14th -18th), Zumberak, Croatia. METHODS: Metric and volumetric data were collected, and CT with VRT reconstruction was employed. RESULTS: Metric analyses indicate that the neurocranium and upper face display increased size and volume. CONCLUSION: A diagnosis of the communicating form of hydrocephalus is suggested. SIGNIFICANCE: This is the first published case of the communicating form of hydrocephalus. LIMITATIONS: It is difficult to determine the specific etiology of this condition based on skeletal remains.

Hydrocephalus of King Charles II of Spain, the Bewitched King.

King of the Spanish Habsburg dynasty and sovereign of the overseas Spanish Empire, Charles II of Spain, was physically disabled, disfigured, mentally retarded, and he proved impotent. He is known in history as El Hechizado (the Bewitched) because both him and the people believed that his mental and physical incapacity were due to a "witchcraft act." Although several authors speculated about different diseases, most of them genetic such as pituitary hormone deficiency, distal renal tubular acidosis, Klinefelter syndrome, fragile X syndrome, or male XX hermaphroditism, the hypothesis of hydrocephalus was not taken into account. We don't have clear elements to hypothesize a certain etiology of Charles II' hydrocephalus; however, we think the herpetic infection he suffered of after his birth should not be ignored.

Did Ibn Zuhr (Avenzoar) Postulate Before Vesalius That Liquid Collects in Ventricles in the Hydrocephalus?

OBJECTIVE: This study aimed to present and evaluate the part of Avenzoar's Liber Teisir that pertains to hydrocephalus. Avenzoar was an Andalusian physician prominent in the history of medicine because of the broadness of his observations and original methods. His most important work is recognized to be the Al-Taysir fi al-Mudawat wa al-Tadbir (On Preventive Regimen and Treatment), and its Latin version, Alteisir scilicet regiminis et medelae, which was in use for centuries in Europe. METHODS: The Arabic (Rabat, Morocco, in 1991) and Latin (Venice, Italy, in 1530) versions of Avenzoar's work were perused, relevant sections were separately translated into English, and both translations were then compared. An English version was prepared and is given in our results. RESULTS: The location of liquid collection was described as the anterior ventricles of the brain and around the brain. CONCLUSIONS: Avenzoar might have noted one of the earliest records on the clinical state called idiopathic adult hydrocephalus and postulated liquid collection in the ventricles of the brain in hydrocephalus before Vesalius.

The antiquity of hydrocephalus: the first full palaeo-neuropathological description.

The Pathology Museum of the University of Florence houses a rich collection of anatomical specimens and over a hundred waxworks portraying pathological conditions occurring in the nineteenth century, when the museum was established. Clinical and autopsy findings of these cases can still be retrieved from the original museum catalogue, offering a rare opportunity for retrospective palaeo-pathological diagnostics. We present a historical case of severe hydrocephalus backed by modern-day anthropological, radiological and molecular analyses conducted on the skeleton of an 18-month-old male infant deceased in 1831. Luigi Calamai (1796-1851), a wax craftsman of La Specola workshop in Florence, was commissioned to create a life-sized wax model of the child's head, neck and upper thorax. This artwork allows us to appreciate the cranial and facial alterations determined by 30 lb of cerebrospinal fluid (CSF) accumulated within the cerebral ventricular system. Based on the autopsy report, gross malformations of the neural tube, tumours and haemorrhage could be excluded. A molecular approach proved helpful in confirming sex. We present this case as the so-far most compelling case of hydrocephalus in palaeo-pathological research.

Walter Edward Dandy (1886-1946): The epitome of adroitness and dexterity in Neurosurgery.

Walter Edward Dandy did pioneering work in Neurosurgery in the early part of the 19th century. He worked all his life at the Johns Hopkins Hospital in USA and contributed extensively to research in hydrocephalus, the physiology of the cerebrospinal fluid and devised the technique of pneumoencephalography, apart from performing the first clipping operation in cerebral aneurysm and the division of the trigeminal nerve in neuralgic pain. This article summarizes his immense contributions in the field of Neurosurgery.

The Evolution of Cerebrospinal Fluid Shunts: Advances in Technology and Technique.

Over the past few centuries, there have been many advances in shunt technology, from the evolution of shunt tubing materials, to advances in valves for regulating the flow of cerebrospinal fluid (CSF). Additional medical advances have enabled the antibiotic impregnation of catheters. Finally, advances in technology have expanded the options for minimally invasive techniques and improved the management of complicated cases of hydrocephalus. The evolution of technology and technique in the management of hydrocephalus with CSF shunts will be discussed here.

[Brain X-radiation for Childhood Epilepsy, Hydrocephalus or Mental Retardation? Research at Tuebingen University, 1940-1946]. / Röntgenbestrahlung des Gehirns zur Behandlung von kindlicher Epilepsie, Hydrocephalus oder Schwachsinn? Forschungen an der Tübinger Universitätsklinik von 1940-1946.

Brain X-radiation for Childhood Epilepsy, Hydrocephalus or Mental Retardation? Research at Tuebingen University, 1940-1946 We reconstructed 65 cases out of a series of "experimental" X-ray-therapy by chart review and reanalysis of publications from a contextual historical perspective. The research procedures in the context of NS-pressure for effectiveness soon dismissed structured scientific procedures and surrendered own standards, whereas radiation impact did not transgress the contemporary guidelines.

The Global Rise of Endoscopic Third Ventriculostomy with Choroid Plexus Cauterization in Pediatric Hydrocephalus.

In the quest to identify the optimal means of cerebrospinal fluid diversion free of shunt dependency, endoscopic third ventriculostomy (ETV) with choroid plexus cauterization (CPC) has been proposed as a promising procedure in select children. Supplementing traditional ETV with obliteration of the choroid plexus has been shown to decrease the likelihood of ultimate shunt dependency by roughly 20%. Originally devised to treat hydrocephalus in infants in sub-Saharan Africa, ETV/CPC has gained eager attention and cautious support in the developed world. Herein, we offer a comprehensive review of ETV/CPC beginning with the history and theory behind the operation. Next, we delve into the data supporting its use across heterogeneous pediatric populations, and finally we discuss clinical outcomes and future directions.

Arne Torkildsen and the ventriculocisternal shunt: the first clinically successful shunt for hydrocephalus.

Arne Torkildsen was a pioneering Norwegian neurosurgeon who introduced the ventriculocisternal shunt, the first clinically successful shunt for CSF diversion in hydrocephalus. The procedure, usually referred to as ventriculocisternostomy (VCS), Torkildsen's operation, orTorkildsen's shunt, became internationally recognized as an efficient operation for the treatment of noncommunicating hydrocephalus. The operation gained widespread use in the 1940s and 1950s before the introduction of extracranial shunts. In this paper, the authors look more closely at Torkildsen's development of the VCS and examine how this surgical approach differed from other procedures for treating hydrocephalus before World War II. Long-term results of the VCS are presented.