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Interscalene Blocks and the Incidenc...

Bozada, Thomas.

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Interscalene Blocks and the Incidence of Hemidiaphragm Paralysis Accessed by Ultrasound.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Interscalene Blocks and the Incidence of Hemidiaphragm Paralysis Accessed by Ultrasound./
作者:	Bozada, Thomas.
其他作者:	Ritter, Cameron
面頁冊數:	74 p.
附註:	Source: Masters Abstracts International, Volume: 55-04.
Contained By:	Masters Abstracts International55-04(E).
標題:	Surgery. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10062272
ISBN:	9781339576817

Interscalene Blocks and the Incidence of Hemidiaphragm Paralysis Accessed by Ultrasound.
Bozada, Thomas.

Interscalene Blocks and the Incidence of Hemidiaphragm Paralysis Accessed by Ultrasound. - 74 p.

Source: Masters Abstracts International, Volume: 55-04.

Thesis (M.S.)--Webster University, 2016.

Interscalene nerve blocks traditionally have a high incidence of hemidiaphragm paralysis, which may reduce pulmonary function by 25-30%. Previous research has shown that 5mL injections using a nerve stimulation technique have reduced its incidence to 43.3%. Many studies assess hemidiaphragm paralysis with ultrasound or pulmonary function changes. This study investigates the use of ultrasound with a 5mL injection to determine the incidence of hemidiaphragm paralysis assessed with fluoroscopy, a highly specific test for diagnosis of hemidiaphragm paralysis. A retrospective chart review was performed on 33 patients where continuous catheter interscalene blocks were placed under ultrasound guidance for shoulder and upper arm surgery. Hemidiaphragm paralysis was diagnosed if ipsilateral paradoxical or absent motion of the diaphragm was observed under fluoroscopy. Of the 33 records reviewed, 11 patients experienced hemidiaphragm paralysis (33%). No significant difference (p=0.24) was noted when these results were compared to a previous study, where a 43.3% incidence of hemidiaphragm paralysis was observed with nerve stimulation. There were no documented reports of Horner's syndrome or recurrent laryngeal nerve paralysis. The low-volume ultrasound guided technique does result in a low incidence of complications while maintaining analgesia. A larger scale prospective study may look further at the effects of obesity and the length of time that hemidiaphragm paralysis occurs following placement and during infusion of a continuous interscalene catheter.

ISBN: 9781339576817Subjects--Topical Terms:

707153
Surgery.

Interscalene Blocks and the Incidence of Hemidiaphragm Paralysis Accessed by Ultrasound.
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