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Alexis St. Martin
Alexis Bidagan St. Martin (April 18, 1802〔There has been on-going confusion of brothers with the same name. Alexis of this article had an older brother born in 1794 who died in January 1802. Alexis the voyageur was actually born in April, 1802 in Berthierville, Quebec and named for his brother who had died several months before. (【引用サイトリンク】 author = from Ancestry.com )〕 – June 24, 1880) was a Canadian voyageur who is known for his part in experiments on digestion in humans, conducted on him by the American Army physician William Beaumont between 1822 and 1833.
== Work with Beaumont ==
On June 6, 1822 Alexis St. Martin, at the fur trading post on Mackinac Island, was accidentally shot with a musket at close range. The charge of the musket shot left a hole through his side that healed to form a fistula aperture into his stomach.
William Beaumont, a US Army surgeon stationed at a nearby army post, treated the wound. Although St. Martin was a healthy 20-year-old, he was not expected to recover due to the severity of his wound. Beaumont explains in a later paper that the shot blew off fragments of St. Martin's muscles and broke a few of his ribs. After bleeding him and giving him a cathartic, Beaumont marked St. Martin's progress. For the next 17 days, all food he ate re-emerged from his new gastric fistula. Finally after 17 days, the food began to stay in St. Martin's stomach and his bowels began to return to their natural functions. When the wound healed itself, the edge of the hole in the stomach had attached itself to the edge of the hole in the skin, creating a permanent gastric fistula. There was very little scientific understanding of digestion at the time and Beaumont recognized the opportunity he had in St. Martin – he could literally watch the processes of digestion by dangling food on a string into St. Martin's stomach, then later pulling it out to observe to what extent it had been digested. Beaumont continued to experiment on St. Martin off and on until 1833.
Alexis St. Martin allowed the experiments to be conducted, not as an act to repay Beaumont for keeping him alive, but rather because Beaumont had the illiterate St. Martin sign a contract to work as a servant. Beaumont recalls the chores St. Martin did: "During this time, in the intervals of experimenting, he performed all the duties of a common servant, chopping wood, carrying burthens, etc. with little or no suffering or inconvenience from his wound." Although these chores were not bothersome, some of the experiments were painful to St. Martin, for example when Beaumont had placed sacks of food in the stomach, Beaumont noted: “the boy complained of some pain and uneasiness at the breast.” Other symptoms St. Martin felt during experiments were a sense of weight and distress at the scrobiculus cordis and slight vertigo and dimness of vision.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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