Seldinger Technique & Modified Seldinger Technique 

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thanks for sharing your experience

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yes... but difficult to keep the needle in position in smaller vessels, that's why modified Seldinger Technique is used in infants

@@MedicalSnippet Thank you very much

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the thickness(Diameter) difference

true 👍🏻

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Its used in Cardiology for vascular access to do angiography, stenting the coronaries, to insert temporary pacemaker, to insert intra aortic ballon pump, TAVI and many more in interventional radiology... there's a long list

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yes... since in neonates the venous lumen is very small... the needle may get displaced while inserting the guide wire... to avoid it a fine catheter is inserted first... followed by guide wire insertion...

@@MedicalSnippet Don't we also use modified version for arterial lines?

modified Seldingers technique...makes sense in neonates... not it adults...

Actually when catheter is again advanced over guid wire is desired catheter with desired shape quality etc and catherer removed before is disposable catheter that comes with needle ...