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The standard application of levodopa gel via a JET-PEG, i.e. a percutaneous endoscopic gastrostomy (PEG) with an inserted internal catheter into the jejunum, has not been unproblematic due to the restricted absorption area of the drug in the region of the flexura duodenojejunalis and especially due to the sometimes considerable accumulated complication rates of a JET-PEG. Causes of complications are mainly a non-optimal application technique of PEG and internal catheter as well as the often missing adequate follow-up care. This article presents the details of a\u2014compared to the conventional technique\u2014modified and optimised application technique, which has been clinically proven successfully for years. However, many details derived from anatomical, physiological, surgical and endoscopic aspects must be strictly observed during the application to reduce or avoid minor and major complications. Local infections and buried bumper syndrome cause particular problems. The relatively frequent dislocations of the internal catheter (which can ultimately be avoided by clip-fixing the catheter tip) also prove to be particularly troublesome. Finally, using the Hybrid technique, a new combination of an endoscopically controlled gastropexy with 3 sutures and subsequent central thread\u00a0pull-through (TPT) of the PEG tube, the complication rate can be dramatically reduced and thus a decisive improvement achieved for patients. The aspects discussed here are highly relevant for all those involved in the therapy of advanced Parkinson's syndrome.\n<\/jats:p>","DOI":"10.1007\/s00702-023-02601-0","type":"journal-article","created":{"date-parts":[[2023,2,21]],"date-time":"2023-02-21T21:19:18Z","timestamp":1677014358000},"page":"1383-1394","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Optimised endoscopic access for intrajejunal levodopa application in idiopathic Parkinson's syndrome"],"prefix":"10.1007","volume":"130","author":[{"given":"K. 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