Non-Pharmacological Factors on Spinal Block Duration
Analysis of Non-pharmacological Factors on Spinal Anaesthesia Block Duration
調査の概要
詳細な説明
It is well known that the level of sensory and motor block following spinal anesthesia varies among individuals. This variability is not only related to the dose of local anesthetic but has also been reported to be associated with patient-related non-pharmacological factors. In particular, a relationship has been demonstrated between body mass index (BMI) and both the level and duration of spinal block, with higher block levels and prolonged block duration observed in patients with increased BMI. This phenomenon is thought to be associated with epidural venous distension due to increased intra-abdominal pressure and a reduction in subarachnoid cerebrospinal fluid (CSF) volume. A decrease in CSF volume may facilitate greater cephalad spread of intrathecal local anesthetic agents, thereby prolonging block duration.
Paraspinal muscle mass is also an important anatomical parameter that may influence intra-abdominal pressure and epidural space compliance, and thus may play a determining role in the spread of spinal anesthesia. However, although several studies have investigated the relationship between BMI and body composition and spinal block characteristics, the number of clinical studies directly evaluating the association between ultrasonographically measured paraspinal muscle mass and spinal anesthesia block duration remains limited. Therefore, ultrasonographic measurement of paraspinal muscle thickness may serve as a potential predictor of spinal block duration.
研究の種類
入学 (推定)
連絡先と場所
研究連絡先
- 名前:Leyla Sivacigil, MD
- 電話番号:905065983478
- メール:veralleyla@hotmail.com
研究連絡先のバックアップ
- 名前:Guray Demir, Proffesor
- 電話番号:90 5052113989
- メール:guraydemir@gmail.com
研究場所
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Istanbul、トルコ(Türkiye)、34000
- 募集
- Taksim Training and Research Hospital
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コンタクト:
- Leyla Sivacigil, MD
- 電話番号:905065983478
- メール:veralleyla@hotmail.com
-
主任研究者:
- Leyla Sivacigil, MD
-
コンタクト:
- Guray Demir, Proffesor
- 電話番号:905052113989
- メール:guraydemir@gmail.com
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-
参加基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
サンプリング方法
調査対象母集団
説明
Inclusion Criteria:
- Patients aged 18-80 years
- ASA physical status I-III
- Patients scheduled for elective lower abdominal surgery.
Exclusion Criteria:
- Patient refusal to participate
- Coagulopathy
- Use of medications or substances known to impair coagulation
- Pregnancy, sepsis
- Shock
- Severe aortic or mitral regurgitation
- Peripheral vascular disease
- Increased intracranial pressure
- Mental disorders
- Spinal column deformity
- History of previous spinal surgery.
研究計画
研究はどのように設計されていますか?
デザインの詳細
この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Paraspinal mass measurement with ultrasound.
時間枠:Pre-operative
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Ultrasonographic measurement of paraspinal muscle thickness (cm) and its association with duration of spinal block will be investigated.
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Pre-operative
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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The spread of the spinal block
時間枠:Perioperative/Periprocedural
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The speed of the sensational block will be measured after spinal anaesthesia performed. Time(minute) will be recorded when T10 level sensational block is achieved. |
Perioperative/Periprocedural
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協力者と研究者
捜査官
- 主任研究者:Leyla Sivacigil、Taksim Training and Research Hospital
出版物と役立つリンク
一般刊行物
- Kahveci M, Ugur L. The Effect of Injection Parameters on Drug Distribution for Spinal Anesthesia: A Numerical Approach. J Clin Med. 2025 Sep 3;14(17):6236. doi: 10.3390/jcm14176236.
- Paliwal N, Khan IA. Exploring Variability in Spinal Anesthesia Levels Achieved During Cesarean Section Deliveries: A Narrative Review. Cureus. 2025 Jul 21;17(7):e88429. doi: 10.7759/cureus.88429. eCollection 2025 Jul.
- Belavy DL, Armbrecht G, Felsenberg D. Real-time ultrasound measures of lumbar erector spinae and multifidus: reliability and comparison to magnetic resonance imaging. Physiol Meas. 2015 Nov;36(11):2285-99. doi: 10.1088/0967-3334/36/11/2285. Epub 2015 Oct 9.
研究記録日
主要日程の研究
研究開始 (実際)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。