sciencetech-blog

comments

Scientists have discovered evidence of 2,300-year-old surgical procedure on two ancient skulls.

The skulls, unearthed in the Altai Mountains of Siberia, belonged to the Pazyryk nomadic tribe and showed clear signs of recovery after brain surgery.

Using similar tools and techniques, scientists now plan to recreate the same, high-risk procedure - albeit on skulls of the dead.

The skulls, unearthed in the Altai Mountains of Siberia, belonged to the Pazyryk nomadic tribe and showed clear signs of recovery after brain surgery. The skulls showed clear evidence of recovery after undergoing the process called 'trepanation'. It belonged to a man believed to be 40 to 45-years-old at the time of death

The skulls showed clear evidence of recovery after undergoing the process called 'trepanation', according to a report in the Siberian Times.

Trepanation was a risky ancient medical procedure which involved drilling a hole, or surgically scraping into a human skull.

It was used, among other things, to relieve brain swelling, and historians believe it may also have been mistakenly used to treat problems with the nervous system.

One of the skulls, which belonged to a man aged 40 to 45, showed signs of suffering a trauma to the head.

Scientists believe he developed a subdural haematoma, a condition where blood forms between the skull and the surface of the brain.

30-year-old woman's skull from Kyzyk-Dzhar-IV shows that she died during the surgery or soon afterwards

The haematoma would have led to him suffering headaches, vomiting and movement problems in his right leg and hand.

Trepanation would have removed the haematoma and evidence of later bone growth suggests the man lived for years after the surgery.

The second male had a hereditary deformation, which was successfully improved with by drilling a hole into the skull.

'In the middle 19th century, the survival of patients after trepanation in the best hospitals in Europe rarely exceed 10 per cent,' Institute of Archaeology and Ethnography of the Siberian Branch of Russian Academy of Sciences told Siberian Times. 

Trepanation was a high-risk ancient medical procedure which involved drilling a hole, or surgically scraping into a human skull. Pictured is the second male, who had a hereditary deformation of the skull

Scientists have now created computer models of the two skulls, along with a third skull found of a woman in which the procedure was unsuccessful

'[Trepanation] was associated with an extremely high risk of infectious complications, and this operation was committed only when patients had very severe traumatic brain injury.' 

'Even today, with advanced neurosurgical techniques, successful implementation of trepanation requires the serious knowledge and training, and the procedure itself is not considered as absolutely harmless.'

Archaeologists believe the Pazyryk tribe may have had knowledge of the Hippocratic Corpus, a set of ancient Greek medical texts associated with the physician Hippocrates.

They claim results of the ancient operations on these two skulls to be 'astonishing' given the risks associated with such surgery.

Scientists have now created computer models of the two skulls, along with a third skull found of a woman in which the procedure was unsuccessful.

The 30-year-old woman's skull indicated injury consistent with a fall, and further analysis suggests she died during the surgery or soon afterwards.

By recreating the procedure, scientists at the Institute of Archaeology and Ethnography hope to understand more which tools were used, and why the procedure was carried out.

'It may have been related to the rituals through which man reached altered states of consciousness required for religious and magical activities,' they say.

The Altai Mountains, where the skulls were found, are a mountain range in East-Central Asia, where Russia, China, Mongolia and Kazakhstan come together