The journal of vascular access
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The purpose of this study was to investigate if the immediate hemodynamic outcome of an endovascular intervention on a dysfunctional hemodialysis arteriovenous fistula is a prognostic factor for primary patency. ⋯ The results of this study do not provide scientific support for using the immediate hemodynamic outcome of an intervention as a prognostic factor for primary patency. Low fistula age and a history of previous intervention in particular were found to reduce primary patency significantly.
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Loco-regional anesthesia, along with the neurosensitive inhibition causes arterial and venous vasodilatation, that could be of interest for vascular access surgery. We evaluated the long term vasoplegia persistence after brachial plexic block. ⋯ The vasoplegia accompaning plexic block lasted 6 hours after anesthesia induction. Whereas this longstanding haemodynamic effect is beneficial for early patency of vascular access for hemodialysis, needs to be ascertained by further investigations.
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The purpose of this study is to present the characteristic radiologic features of common and uncommon complications in totally implantable central venous ports. ⋯ Image-guided central venous port catheter implantation is a very safe procedure with a low rate of complications. The typical imaging features of common and uncommon complications are very helpful in establishing the correct diagnosis and thus tailoring the appropriate therapy.
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Multicenter Study
The intracavitary ECG method for positioning the tip of central venous catheters: results of an Italian multicenter study.
The aim of this multicenter study was to assess the feasibility, safety, and accuracy of the intracavitary ECG method for real-time positioning of the tip of different types of central venous catheters. ⋯ Our multicenter study confirms that the intracavitary ECG method for real time verification of tip position is accurate, safe, feasible in all adult patients and applicable to any type of short-term or long-term central venous access device.
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Intra-cavitary electrocardiography (ECG) is a well-known method for correct positioning of the tip of central venous catheters (CVC). A significant increase in the P wave, as registered by the intra-cavitary electrode, signals the entrance of the catheter into the right atrium. ⋯ The need for chest x-ray or fluoroscopy may be virtually eliminated by using the ECG technique.