Diaphragmatic Effects of Combined Infraclavicular Brachial Plexus Block and Suprascapular Nerve Block (ICB-SNB)
Evaluation of the Effects of Combined Infraclavicular Brachial Plexus Block and Suprascapular Nerve Block on the Diaphragm in Arthroscopic Shoulder Surgery
Visão geral do estudo
Status
Status
Condições
Condições
Descrição detalhada
This prospective observational study was conducted to evaluate the effects of combined infraclavicular brachial plexus block and anterior suprascapular nerve block on diaphragmatic excursion in patients undergoing elective arthroscopic shoulder surgery.
Patients scheduled for arthroscopic shoulder surgery under regional anesthesia were enrolled in the study. Prior to block administration, baseline diaphragmatic excursion was assessed using ultrasonography during both normal and deep breathing. Each measurement was repeated three times, and the mean value was recorded. The same measurements were repeated 30 minutes after completion of the block procedures using an identical protocol.
The percentage change in diaphragmatic excursion between baseline and post-block measurements was calculated for both normal and deep breathing. Hemidiaphragmatic paralysis was categorized according to the degree of reduction in diaphragmatic excursion as absent (≤25% reduction), partial (25.1-74.9% reduction), or complete (≥75% reduction).
All nerve blocks were performed under ultrasound guidance by anesthesiologists experienced in regional anesthesia techniques. The infraclavicular brachial plexus block was performed using 15 mL of 0.5% bupivacaine deposited around the posterior cord and 8 mL of 0.5% bupivacaine around the lateral cord. The anterior suprascapular nerve block was performed with 7 mL of 0.5% bupivacaine. In addition, arthroscopic portal sites were infiltrated with 10 mL of 0.2% bupivacaine to provide supplementary analgesia.
All patients received intravenous midazolam (2 mg) and paracetamol (1 g) during the intraoperative period. Additional analgesic or sedative medication was administered when required according to clinical conditions and surgical needs. Block performance time, requirement for supplemental analgesia or sedation, and any block-related adverse events were recorded.
The primary outcome measure was the change in diaphragmatic excursion measured by ultrasonography 30 minutes after block administration. Secondary outcome measures included the incidence and severity of hemidiaphragmatic paralysis, block performance time, duration of postoperative analgesia, need for additional intraoperative analgesia or sedation, time to first analgesic requirement, patient and surgeon satisfaction, block-related complications, and conversion to general anesthesia.
The study was designed to investigate whether the combination of infraclavicular brachial plexus block and anterior suprascapular nerve block could provide effective anesthesia and analgesia for arthroscopic shoulder surgery while minimizing impairment of diaphragmatic function and reducing the incidence of clinically significant hemidiaphragmatic paralysis.
Tipo de estudo
Tipo de estudo
Inscrição (Real)
Inscrição
Contactos e Locais
Locais de estudo
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Ankara
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Ankara, Ankara, Turquia (Türkiye), 06500
- Gazi University Faculty of Medicine Hospital
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Critérios de participação
Critérios de elegibilidade
Critérios de elegibilidade
Idades elegíveis para estudo
- Adulto
- Adulto mais velho
Aceita Voluntários Saudáveis
Método de amostragem
População do estudo
Descrição
Inclusion Criteria:
- Patients aged 18-80 years.
- ASA physical status I-III.
- Scheduled for elective arthroscopic shoulder surgery.
- Ability to provide written informed consent
Exclusion Criteria:
- Refusal to undergo peripheral nerve block.
- Pre-existing peripheral neuropathy.
- Known pulmonary, hepatic, or renal disease.
- Allergy to local anesthetics.
- Infection at the block site.
- Pre-existing neurological deficit.
- Body mass index (BMI) > 40 kg/m².
- Coagulopathy.
- Sepsis.
Previous surgery at the planned block site.
- Major psychiatric disorders.
- Inability to complete diaphragmatic ultrasonographic assessment.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
Número de grupos/coortes
Coortes e Intervenções
Grupo / CoorteGrupo / Coorte |
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Patients Undergoing Arthroscopic Shoulder Surgery
Patients undergoing arthroscopic shoulder surgery who received a combined infraclavicular brachial plexus block and anterior suprascapular nerve block.
Diaphragmatic excursion was evaluated using ultrasonography before and after block administration.
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O que o estudo está medindo?
Medidas de resultados primários
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
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Change in Diaphragmatic Excursion at 30 Minutes After Block Administration
Prazo: 30 minutes after block administration
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Diaphragmatic excursion measured by ultrasonography during normal and deep breathing before block administration and 30 minutes after block administration.
The percentage change from baseline was calculated.
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30 minutes after block administration
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Medidas de resultados secundários
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
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Incidence of Hemidiaphragmatic Paralysis
Prazo: 30 minutes after block administration
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Presence of hemidiaphragmatic paralysis determined by ultrasonographic assessment of diaphragmatic excursion.
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30 minutes after block administration
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Degree of Hemidiaphragmatic Paralysis
Prazo: 30 minutes after block administration
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Hemidiaphragmatic paralysis classified as absent (≤25% reduction), partial (25.1-74.9%
reduction), or complete (≥75% reduction)
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30 minutes after block administration
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Block Performance Time
Prazo: From needle insertion to completion of the block procedure
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Time required to complete the combined infraclavicular brachial plexus block and anterior suprascapular nerve block.
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From needle insertion to completion of the block procedure
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Additional Intraoperative Analgesia Requirement
Prazo: From surgical incision to the end of surgery
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Requirement for supplemental analgesic medication during surgery.
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From surgical incision to the end of surgery
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Time to First Analgesic Requirement
Prazo: Up to 24 hours after surgery
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Time from completion of the block procedure to the first postoperative analgesic request.
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Up to 24 hours after surgery
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Block-Related Complications
Prazo: From block administration until 24 hours after surgery
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Incidence of block-related adverse events including Horner syndrome, hoarseness, nausea/vomiting, and hemodynamic complications.
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From block administration until 24 hours after surgery
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Colaboradores e Investigadores
Patrocinador
Patrocinador
Investigadores
Investigadores
- Investigador principal: IRFAN GUNGOR, MD, Gazi University Faculty of Medicine
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Real)
Início do estudo
Conclusão Primária (Real)
Conclusão Primária
Conclusão do estudo (Real)
Conclusão do estudo
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Real)
Primeira postagem
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última Atualização Postada
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Outros números de identificação do estudo
Outros números de identificação do estudo
- 2024-GUTF-028
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