Ultraschall in der Medizin : Organ der Deutschen Gesellschaft für Ultraschall in der Medizin, [der] Österreichischen Gesellschaft für Ultraschall in der Medizin, [der] Schweizerischen Gesellschaft für Ultraschall in Medizin und Biologie
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Randomized Controlled Trial
A Prospective Randomized Clinical Trial of Single vs. Double Layer Closure of Hysterotomy at the Time of Cesarean Delivery: The Effect on Uterine Scar Thickness.
We undertook a randomized clinical trial to examine the outcome of a single vs. a double layer uterine closure using ultrasound to assess uterine scar thickness. ⋯ A double layer closure of the hysterotomy is associated with a thicker myometrium scar only in primary or elective Cesarean delivery patients.
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Randomized Controlled Trial Comparative Study
Prospective comparison of noninvasive, bedside ultrasound methods for assessing central venous pressure.
To prospectively evaluate the accuracy of noninvasive central venous pressure (CVP) assessment by compression ultrasound of a forearm vein (CUS), inferior vena cava (IVC-C) and internal jugular vein collapsibility (IJV-C) compared to invasive CVP measurement (invCVP) as the gold standard. ⋯ The overall ability of CUS, IVC-C and IJV-C to assess invCVP was only moderate. CUS seems to be the preferable method if absolute CVP values are needed. IJV-C seems to be the fastest and most easily acquirable method, and thus may be especially valuable in emergency rooms.
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Randomized Controlled Trial
Dynamic needle tip positioning - ultrasound guidance for peripheral vascular access. A randomized, controlled and blinded study in phantoms performed by ultrasound novices.
The application of ultrasound-guidance for peripheral venous access is gaining popularity. It is possible to produce a short axis or a long axis sonographic view of the target vessel and apply an out-of-plane or in-plane needle tip approach. Our aim was to present the dynamic needle tip positioning technique and to estimate which approach is the most accurate for inserting the needle tip into the center of the target vessel. ⋯ The combined short axis and out-of-plane technique using dynamic needle tip positioning had a higher success rate and a shorter distance between the center of the target vessel and the needle tip compared to the combined long axis and in-plane technique.
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Randomized Controlled Trial Comparative Study Clinical Trial
[Validity of ultrasound examinations of disorders of the shoulder joint].
The objective of the present study was to assess the validity of ultrasound diagnosis of shoulder disorders in relation to examiner experience. ⋯ Preoperative ultrasound examination of the shoulder permits a reliable diagnosis of complete rotator cuff tears and calcium deposits (calcific tendinitis). The method is less sensitive but sufficiently reliable for the diagnosis of partial rotator cuff tears and pathology of the long biceps tendon. Examiner experience plays an important role in these special cases. Permanent continuous training in the field of ultrasound diagnosis is a prerequisite for sufficient reliability of ultrasound diagnosis of shoulder disorders.
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Randomized Controlled Trial Multicenter Study Comparative Study Clinical Trial
[Ultrasonography guided versus anatomically oriented puncture of the internal jugular vein for central venous catheterization].
Ultrasonography guided puncture (UGP) of the internal jugular vein (IJV) carried out by an expert is considered to be superior to the anatomically orientated puncture (AOP). Whether routine use of the UGP lowered the number of unsuccessful punctures and complications was unknown. Both puncture techniques were compared in a random study. ⋯ UGP is superior to AOP of the IJV also in routine use. It should be used more frequently in elective situations.