Background. Interscalene nerve block refers to the technique of anesthetizing the roots or trunks of the brachial plexus in the neck between the anterior and middle scalene muscles.The procedure was first well described and popularized by Alon Winnie in 1970.pence et al compared the effectiveness of an injection between the middle scalene muscle and brachial plexus sheath (periplexus) with an injection within the brachial plexus sheath (intraplexus) in 170 patients. There was no difference between the 2 groups in block onset times or block quality.
It's worth the hassle. Colonoscopy can spot small colon cancers while they are treatable and before they have spread to other parts of the body. It can also detect and remove polyps, small growths that can develop into colon cancer.
Discover the Preventive Benefits of a Colonoscopy. For those who are asking the average cost of colonoscopy, it typically changes depending on different factors. But before knowing what the cost is, letâs find out first what a colonoscopy is for. Itâs a procedure done if you want to be screened for colon cancer.