Vascular Evaluation around the Cervical Nerve Roots during Ultrasound-Guided Cervical Nerve Root Block
Introduction: To carry out ultrasound-guided cervical nerve root block (CNRB) safely, we investigated the frequency of risky blood vessels around the target nerve root and within the imaginary needle pathway in the actual injecting position. Methods: 30 patients (20 men, 10 women) with cervical radi...
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| Format: | Article |
| Language: | English |
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The Japanese Society for Spine Surgery and Related Research
2020-01-01
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| Series: | Spine Surgery and Related Research |
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| Online Access: | https://www.jstage.jst.go.jp/article/ssrr/4/1/4_2019-0006/_pdf/-char/en |
| _version_ | 1818967324697296896 |
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| author | Shizumasa Murata Hiroshi Iwasaki Yuta Natsumi Hiroshi Minagawa Hiroshi Yamada |
| author_facet | Shizumasa Murata Hiroshi Iwasaki Yuta Natsumi Hiroshi Minagawa Hiroshi Yamada |
| author_sort | Shizumasa Murata |
| collection | DOAJ |
| description | Introduction: To carry out ultrasound-guided cervical nerve root block (CNRB) safely, we investigated the frequency of risky blood vessels around the target nerve root and within the imaginary needle pathway in the actual injecting position.
Methods: 30 patients (20 men, 10 women) with cervical radiculopathy who received ultrasound-guided CNRB were included in this study. We defined a risky blood vessel as an artery existing within 4 mm from the center of the target nerve root or located in the range of 2 mm above or below the imaginary needle pathway.
Results: Using the color Doppler method, the frequency of a risky blood vessel existing around 4 mm from the center of the C5 nerve root was 3.3% (1/30), whereas it was 3.3% (1/30) for the C6 nerve root and 23.3% (7/30) for the C7 nerve root. Hence, the C7 level had more blood vessels close to the target nerve root compared to the C5 and C6 levels, but there was no significant difference (p = 0.0523). On the other hand, the frequency of a risky blood vessel existing within 2 mm above and below the imaginary needle pathway was 3.3% (1/30) for the C5 nerve root, whereas it was 3.3% (1/30) for the C6 nerve root and 10.0% (3/30) for the C7 nerve root. The C7 level had more blood vessels within the needle pathway compared to the C5 and C6 levels, but there was no significant difference (p = 0.301).
Conclusions: To reduce the risk of unintended intravascular injections, more careful checking for the presence or absence of blood vessels at the C7 level using color Doppler is necessary. |
| first_indexed | 2024-12-20T13:46:59Z |
| format | Article |
| id | doaj.art-7d714596d78847069242a9840d71d1b3 |
| institution | Directory Open Access Journal |
| issn | 2432-261X |
| language | English |
| last_indexed | 2024-12-20T13:46:59Z |
| publishDate | 2020-01-01 |
| publisher | The Japanese Society for Spine Surgery and Related Research |
| record_format | Article |
| series | Spine Surgery and Related Research |
| spelling | doaj.art-7d714596d78847069242a9840d71d1b32022-12-21T19:38:37ZengThe Japanese Society for Spine Surgery and Related ResearchSpine Surgery and Related Research2432-261X2020-01-0141182210.22603/ssrr.2019-00062019-0006Vascular Evaluation around the Cervical Nerve Roots during Ultrasound-Guided Cervical Nerve Root BlockShizumasa Murata0Hiroshi Iwasaki1Yuta Natsumi2Hiroshi Minagawa3Hiroshi Yamada4Department of Orthopedic Surgery, Wakayama Medical UniversityDepartment of Orthopedic Surgery, Wakayama Medical UniversityDepartment of Orthopedic Surgery, Shingu Municipal Medical CenterDepartment of Orthopedic Surgery, Johto Orthopedic ClinicDepartment of Orthopedic Surgery, Wakayama Medical UniversityIntroduction: To carry out ultrasound-guided cervical nerve root block (CNRB) safely, we investigated the frequency of risky blood vessels around the target nerve root and within the imaginary needle pathway in the actual injecting position. Methods: 30 patients (20 men, 10 women) with cervical radiculopathy who received ultrasound-guided CNRB were included in this study. We defined a risky blood vessel as an artery existing within 4 mm from the center of the target nerve root or located in the range of 2 mm above or below the imaginary needle pathway. Results: Using the color Doppler method, the frequency of a risky blood vessel existing around 4 mm from the center of the C5 nerve root was 3.3% (1/30), whereas it was 3.3% (1/30) for the C6 nerve root and 23.3% (7/30) for the C7 nerve root. Hence, the C7 level had more blood vessels close to the target nerve root compared to the C5 and C6 levels, but there was no significant difference (p = 0.0523). On the other hand, the frequency of a risky blood vessel existing within 2 mm above and below the imaginary needle pathway was 3.3% (1/30) for the C5 nerve root, whereas it was 3.3% (1/30) for the C6 nerve root and 10.0% (3/30) for the C7 nerve root. The C7 level had more blood vessels within the needle pathway compared to the C5 and C6 levels, but there was no significant difference (p = 0.301). Conclusions: To reduce the risk of unintended intravascular injections, more careful checking for the presence or absence of blood vessels at the C7 level using color Doppler is necessary.https://www.jstage.jst.go.jp/article/ssrr/4/1/4_2019-0006/_pdf/-char/encervical spineselective nerve root blockultrasonography |
| spellingShingle | Shizumasa Murata Hiroshi Iwasaki Yuta Natsumi Hiroshi Minagawa Hiroshi Yamada Vascular Evaluation around the Cervical Nerve Roots during Ultrasound-Guided Cervical Nerve Root Block Spine Surgery and Related Research cervical spine selective nerve root block ultrasonography |
| title | Vascular Evaluation around the Cervical Nerve Roots during Ultrasound-Guided Cervical Nerve Root Block |
| title_full | Vascular Evaluation around the Cervical Nerve Roots during Ultrasound-Guided Cervical Nerve Root Block |
| title_fullStr | Vascular Evaluation around the Cervical Nerve Roots during Ultrasound-Guided Cervical Nerve Root Block |
| title_full_unstemmed | Vascular Evaluation around the Cervical Nerve Roots during Ultrasound-Guided Cervical Nerve Root Block |
| title_short | Vascular Evaluation around the Cervical Nerve Roots during Ultrasound-Guided Cervical Nerve Root Block |
| title_sort | vascular evaluation around the cervical nerve roots during ultrasound guided cervical nerve root block |
| topic | cervical spine selective nerve root block ultrasonography |
| url | https://www.jstage.jst.go.jp/article/ssrr/4/1/4_2019-0006/_pdf/-char/en |
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