ABSTRACT
BACKGROUND: The role of type I thyroplasty (TIP) is well established as the treatment for glottal insufficiency due to vocal fold paralysis, but the ideal anesthetic management for this procedure is still largely debated. We present the case of a novel anesthetic approach for TIP using combined intermediate and superficial Cervical Plexus Block (CPB) and intermittent mild sedation analgesia. CASE REPORT: A 51-year-old presenting with left vocal fold paralysis and obstructive sleep apnea was scheduled for TIP. An ultrasound-guided intermediate CPB was performed using the posterior approach, and 15 mL of ropivacaine 0.5% were injected in the posterior cervical space between the sternocleidomastoid muscle and the prevertebral fascia. Then, for the superficial CPB, a total of 10 mL 0.5% ropivacaine was injected subcutaneously, adjacently to the posterior border of the sternocleidomastoid muscle, without penetrating the investing fascia. An intermittent sedation analgesia with a target-controlled infusion of remifentanyl (target 0.5 ng.mL-1) was used to facilitate prosthesis insertion and the fiberoptic laryngoscopy. This technique offered a safe anesthetic airway and good operating conditions for the surgeon, as well as feasible voice monitoring and optimal patient comfort. CONCLUSION: The use of regional technique is a promising method for the anesthetic management in TIP, especially in patients with compromised airway.
Subject(s)
Cervical Plexus Block/methods , Laryngoplasty/methods , Vocal Cord Paralysis/surgery , Anesthetics, Local/administration & dosage , Female , Humans , Middle Aged , Ropivacaine/administration & dosage , Ultrasonography, InterventionalABSTRACT
Abstract Background: The role of type I thyroplasty (TIP) is well established as the treatment for glottal insufficiency due to vocal fold paralysis, but the ideal anesthetic management for this procedure is still largely debated. We present the case of a novel anesthetic approach for TIP using combined intermediate and superficial Cervical Plexus Block (CPB) and intermittent mild sedation analgesia. Case report: A 51-year-old presenting with left vocal fold paralysis and obstructive sleep apnea was scheduled for TIP. An ultrasound-guided intermediate CPB was performed using the posterior approach, and 15 mL of ropivacaine 0.5% were injected in the posterior cervical space between the sternocleidomastoid muscle and the prevertebral fascia. Then, for the superficial CPB, a total of 10 mL 0.5% ropivacaine was injected subcutaneously, adjacently to the posterior border of the sternocleidomastoid muscle, without penetrating the investing fascia An intermittent sedation analgesia with a target-controlled infusion of remifentanyl (target 0.5 ng.mL-1) was used to facilitate prosthesis insertion and the fiberoptic laryngoscopy. This technique offered a safe anesthetic airway and good operating conditions for the surgeon, as well as feasible voice monitoring and optimal patient comfort. Conclusion: The use of a regional technique is a promising method for the anesthetic management in TIP, especially in patients with compromised airway.
Resumo Introdução: O papel da tireoplastia tipo I (TPI) está bem estabelecido no tratamento de insuficiência glótica após a paralisia das pregas vocais, mas o manejo anestésico ideal para a TPI ainda é controverso. Descrevemos uma nova técnica anestésica para a TPI usando o Bloqueio do Plexo Cervical (BPC) superficial e o BPC intermediário associados, em presença de analgo-sedação leve e intermitente. Relato de caso: Paciente de 51 anos de idade com paralisia da prega vocal esquerda e apneia obstrutiva do sono foi agendada para TPI. BPC intermediário guiado por ultrassom foi realizado usando acesso posterior, e 15 mL de ropivacaína a 0,5% foram injetados no espaço cervical posterior entre o músculo esternocleidomastoideo e a fáscia prevertebral. A seguir, para o BPC superficial, 10 mL de ropivacaína a 0,5% foram injetados na região subcutânea adjacente à borda posterior do músculo esternocleidomastoideo, sem transfixar a fáscia de revestimento. Analgo-sedação intermitente com infusão alvo-controlada de remifentanil (alvo de 0,5 ng.mL-1) foi usada para facilitar a inserção da prótese e a laringoscopia com fibra ótica. A técnica ofereceu via aérea segura durante a anestesia, boa condição para o cirurgião, possibilidade de monitorar a voz, além de ótimo conforto à paciente. Conclusões: O uso de anestesia regional é uma técnica promissora para o cuidado anestésico durante a TPI, especialmente em pacientes com via aérea comprometida.
Subject(s)
Humans , Female , Vocal Cord Paralysis/surgery , Laryngoplasty/methods , Cervical Plexus Block/methods , Ultrasonography, Interventional , Ropivacaine/administration & dosage , Anesthetics, Local/administration & dosage , Middle AgedABSTRACT
BACKGROUNDS: Optimal pain management in bariatric patients is crucial for early recovery. This study aims to evaluate the effects of magnesium and ketamine combination on morphine consumption after open bariatric surgery (primary outcome), as well as on postoperative pain scores and occurrence of side effects. METHOD: A total of 60 patients undergoing elective open gastric bypass were randomized into 3 groups. All patients received the same general anaesthesia protocol. The magnesium and ketamine group (Mg + K) received an IV bolus of magnesium 50 mg/kg and ketamine 0.2 mg/kg followed by continuous infusion of magnesium (8 mg/kg/h) and ketamine (0.15 mg/kg/h) until extubation. The ketamine group (K) received the same bolus and infusion of ketamine, together with a bolus and continuous infusion of normal saline. The placebo group (P) received normal saline. All patients received 48 h of paracetamol 1 g IV q6h and morphine sulphate 0.1 mg/kg subcutaneous q6h PRN. Morphine consumption, VAS pain scores and occurrence of side effects were recorded for 48 h postoperatively. RESULTS: Patients in group (Mg + K) (2.4 ± 2.62 mg) and in group (K) (2.8 ± 2.66 mg) had significantly lower morphine consumption in the PACU compared with the patients in group (P) (4.85 ± 4.51 mg) (p = 0.045). Patients in group (Mg + K) consumed significantly less morphine the first 24 postoperative hours, with a relative reduction of 87% and 21% compared with group (K) and group (P) respectively (p = 0.028). However, this difference was not observed at 48 h. No significant difference was shown between the three groups in terms of nausea and vomiting, time to extubation or excessive sedation. CONCLUSION: The association of magnesium and ketamine bolus followed by infusion in open bariatric surgery appears to be safe and decreases morphine requirements in the first 24 h compared with both ketamine alone and placebo.
