Anterior Suprascapular and Axillary vs. Interscalene Block for Analgesia and Diaphragmatic Function in Shoulder Surgery
Comparison of Anterior Suprascapular and Axillary Nerve Block Versus Interscalene Block for Postoperative Analgesia and Diaphragmatic Function in Shoulder Surgery: A Randomized Controlled Trial
Shoulder surgeries are among the most frequently performed orthopedic interventions and are often associated with moderate to severe postoperative pain. In these procedures, effective pain management is crucial for early rehabilitation and patient comfort.
Peripheral nerve blockade is widely used for postoperative analgesia in shoulder surgery. While the interscalene brachial plexus block is considered the gold standard for pain control, it is frequently associated with unintended phrenic nerve blockade, leading to hemidiaphragmatic paresis. To minimize respiratory complications while maintaining effective analgesia, alternative diaphragm-sparing regional anesthesia techniques, such as the combination of suprascapular and axillary nerve blocks, have been introduced.
The aim of this study is to compare the analgesic efficacy and respiratory functions preservation of the ultrasound-guided anterior approach suprascapular combined with axillary nerve block versus interscalene block in patients undergoing shoulder surgery
調査の概要
状態
研究の種類
入学 (推定)
段階
- 適用できない
連絡先と場所
研究連絡先
- 名前:İbrahim Topcu
- 電話番号:+905437860316
- メール:ibrahimtpc78@gmail.com
研究連絡先のバックアップ
- 名前:Musa Zengin
- 電話番号:+905307716235
- メール:musazengin@gmail.com
研究場所
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Ankara
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Yenimahalle、Ankara、トルコ(Türkiye)、06170
- 募集
- Ankara Etlik City Hospital
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コンタクト:
- İbrahim Topcu
- 電話番号:+905437860316
- メール:ibrahimtpc78@gmail.com
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コンタクト:
- Musa Zengin
- 電話番号:+905307716235
- メール:musazengin@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
説明
Inclusion Criteria:
- Patients aged between 18 and 65 years
- American Society of Anesthesiologists (ASA) physical status I, II, or III
- Patients scheduled to undergo elective arthroscopic shoulder surgery
- BMI between 18 and 30 kg/m2
- Ability to provide written informed consent
Exclusion Criteria:
- Known allergy or hypersensitivity to local anesthetics
- Presence of localized infection at the planned injection site
- Severe coagulopathy or active use of anticoagulant medications
- Contralateral phrenic nerve palsy or a diagnosis of severe chronic obstructive pulmonary disease (COPD)
- History of chronic opioid consumption or neuropathic pain
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
- 主な目的:処理
- 割り当て:ランダム化
- 介入モデル:並列代入
- マスキング:ダブル
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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アクティブコンパレータ:Interscalene Block
After the patients are placed under monitoring and positioned supine, and appropriate field sterilization is achieved, the ultrasound probe will be positioned transversely at the level of the cricoid cartilage (C6) with the head turned to the contralateral side.
Advancing the needle laterally into the interscalene groove between the anterior and middle scalene muscles, 10 mL of local anesthetic (%0.5 bupivacaine ) will be injected between the C5 and C6 nerve roots.
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Interscalene block will be performed on the patients using 10 mL of 0.5% bupivacaine under ultrasound guidance.
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アクティブコンパレータ:Combination of Axillary and Anterior Suprascapular Blocks
After the patients are placed under monitoring and positioned supine, and appropriate field sterilization is achieved, the ultrasound probe will be positioned transversely in the supraclavicular fossa with the head turned to the contralateral side.
Advancing the needle in-plane, 5 mL of local anesthetic (%0.5 bupivacaine) will be injected around the suprascapular nerve as it branches anteriorly from the superior trunk of the brachial plexus.
Subsequently, for the axillary nerve block, the patient will be positioned laterally and the ultrasound probe will be placed longitudinally over the posterior aspect of the shoulder.
Advancing the needle into the quadrangular space, 5 mL of local anesthetic (%0.5 bupivacaine) will be injected around the axillary nerve adjacent to the posterior circumflex humeral artery.
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Combined anterior suprascapular(5 ml) and axillary nerve blocks(5 ml) will be performed on the patients using a total of 10 mL of 0.5% bupivacaine under ultrasound guidance.
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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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Postoperative Pain Intensity at Rest
時間枠:4 hours after surgery.
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Pain will be assessed using a visual analog scale from 0 mm (no pain) to 100 mm (worst pain) at rest.
Pain assessment at rest will be made at 4 hours after surgery.
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4 hours after surgery.
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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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Postoperative Pain Intensity at Rest
時間枠:Up to 24 hours
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Pain will be assessed using a visual analog scale from 0 mm (no pain) to 100 mm (worst pain) at rest.
Pain assessment at rest will be made at 1, 8, 12, and 24 hours after surgery.
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Up to 24 hours
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Postoperative Pain Intensity at Movement
時間枠:Up to 24 hours
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Pain will be assessed using a visual analog scale from 0 mm (no pain) to 100 mm (worst pain) at movement.
Pain assessment at rest will be made at 1, 4, 8, 12, and 24 hours after surgery.
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Up to 24 hours
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Total Postoperative Opioid Consumption
時間枠:Up to 24 hours
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The total amount of opioid consumed by the patient will be recorded.
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Up to 24 hours
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Area Under Curve
時間枠:At the 24th hour
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Cumulative 24-hour pain burden calculated by the trapezoidal rule
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At the 24th hour
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Diaphragmatic Excursion
時間枠:Baseline (immediately before block performance) and 30 minutes after block performance
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Diaphragmatic excursion will be measured in centimeters (cm) using M-mode ultrasonography during normal breathing and deep breathing (sniff test).
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Baseline (immediately before block performance) and 30 minutes after block performance
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Forced vital capacity (FVC) (volume)
時間枠:Perioperative period
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Forced vital capacity (FVC) (volume) will be evaluated during the perioperative period.
Measurements will be performed before block administration (baseline), at 30 minutes after the block, and at postoperative 1 and 24 hours.
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Perioperative period
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Forced expiratory flow in 1 s (FEV1) (volume)
時間枠:Perioperative period
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Forced expiratory flow in 1 s (FEV1) (volume) will be evaluated during the perioperative period.
Measurements will be performed before block administration (baseline), at 30 minutes after the block, and at postoperative 1 and 24 hours.
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Perioperative period
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FEV1/FVC
時間枠:Perioperative period
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FEV1/FVC will be evaluated during the perioperative period.
Measurements will be performed before block administration (baseline), at 30 minutes after the block, and at postoperative 1 and 24 hours.
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Perioperative period
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協力者と研究者
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
本研究に関する用語
その他の研究ID番号
- AEŞH-EK-2026-142
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
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