- Optimal Insertion Angle between the Skin and Needle in Ultrasound-Guided Internal Jugular Vein Catheterization with Trauma Patients
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Hyun Min Jeon, Sung Min Jung, Ru Bi Jung, Jin Jeon, Chong Kun Hong, Tae Yong Shin, Young Rock Ha, Young Sik Kim
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J Trauma Inj. 2013;26(3):183-189.
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 Abstract
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- PURPOSE
The aim of this study was to identify the optimal insertion angle between the skin and the needle in ultrasound-guided internal jugular vein (IJV) catheterization with trauma patients.
METHODS
From March 2012 to December 2012, consecutive trauma patients who were planned to receive IJV catheterization were prospectively enrolled. We measured the distances from the skin to IJV's anterior-posterior (AP) vessel wall on the longitudinal scan's midline in supine-positioned patients. We calculated the AP diameter of IJV and the angle between skin and the imaginary line from the puncture site to the IJV's internal center on screen's midline (defined as optimal angle which is considered as the safest approach) on the longitudinal scan. We divided the patients into 3 groups based on the CVP (low CVP <5 cmH2O, 5< or = middle CVP < or =10 cmH2O, and high CVP>10 cmH2O) and compared their mean anterior posterior (AP) diameters and optimal angles.
RESULTS
A total of 56 patients were enrolled. Of these 21 were women(35.4%). The mean AP diameter of low CVP group was significantly lower than middle and high CVP groups(0.68+/-0.30, 1.06+/-0.31, and 1.23+/-0.49 cm respectively, p=0.003 vs. 0.002). There was no significant difference among 3 groups' mean optimal angles (28.1+/-6.1, 30.1+/-4.5, and 28.0+/-5.0 degree respectively).
CONCLUSION
The optimal angle between the skin and the needle in ultrasound-guided IJV catheterization with trauma patients is not changed as about 30 degrees regardless of CVP even though IJV's diameter is altered in proportion to the CVP.
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Summary
- The Utility of Emergency Ultrasound for Diagnosing Wrist and Ankle Injuries
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Sung Sil Lee, Dong Un Kim, Deuk Hyun Park, Hyun Young Cho, Seung Jun Ahn, Chan Young Kho, Tae Yong Shin, Young Sik Kim, Young Rock Ha
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J Korean Soc Traumatol. 2007;20(2):130-137.
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Abstract
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- PURPOSE
Ultrasound is of proven accuracy in abdominal and thoracic trauma and may be useful for diagnosing extremity injury in situations where radiography is not available, such as disasters and military and space applications. However, the diagnosis of fractures is suggested by history and physical examination and is typically confirmed with radiography. As a alternative to radiography, we prospectively evaluated the utility of extremity ultrasound performed by trained residents of emergency medicine (EM) one patient with wrist and ankle extremity injuries.
METHODS
Initially, residents of EM performed physical examinations for fractures. The emergency ultrasound (EM US) was performed by trained residents, who used a portable ultrasound device with a 10- to 5-MHz linear transducer, on suspected patients before radiography examination. The results of emergency ultrasound and radiography and the final diagnosis were recorded, and correlations among them were determined by using Kappa`s test.
RESULTS
Thirty-nine patients were enrolled in our study. The average age was 36.6+/-19.3 years. There were radius Fx. (n=21), radius-ulna Fx. (n=1), ulna Fx. (n=1), and contusion (n=2) injuries among the wrist injury and lat.-med. malleolar Fx. (n=13), lat. malleolar Fx. (n=6), and med. malleolar Fx. (n=3) injuries among the ankle injury. Comparing EM US with radiography, we found the sensitivity, specificity, positive predictive value, and negative predictive value of EM US for Fx. diagnosis to be 100%, 66.7%, 97.3%, 100% and those of radiography to be 97.2%, 100%, 100%, and 75%, respectively. Kappa`s test for a correlation between the Fx. diagnosis of EM US and the final diagnosis of Fx was performed, and Kappa`s value was 0.787 (P = 0.004).
CONCLUSION
EM US for Fx. can be performed quickly and accurately by EM residents with excellent accuracy in remote locations such as disaster areas and in military and aerospace applications. EM US was as useful as radiography in our study and had a high correlation to the final diagnosis of Fx. Therefore, ultrasound should performed on patients with extremity injury to determine whether extremity evaluation should be added to the FAST (focused abdominal sonography trauma) examination.
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Summary
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