ABSTRACT
ABSTRACT BACKGROUND AND OBJECTIVES: Chronic postsurgical pain is a major surgical complication with an impact on quality of life. Persistent pain following cervical fusion with iliac crest graft can be due to patient positioning, cervical surgical technique or nerve injury during iliac crest harvesting. Treatment options for chronic postsurgical pain overlap with those recommended for neuropathic pain. However, other pain mechanisms may be present in these patients. CASE REPORT: Male patient, 51-year-old, with persistent pain five years after emergency cervical arthrodesis with an iliac crest graft. The patient was referred to the chronic pain department (CPD) for management of meralgia paresthetica. However, other significant pain etiologies were found and treated such as nociceptive neck pain, myofascial lumbar pain, and inguinal neuropathic postsurgical pain. The therapeutic approach included multimodal pharmacotherapy with anticonvulsants, antidepressants, weak opioids, topical capsaicin 8% patch, as well as nerve blocks. After almost two years of follow-up, CPD discharge was possible, with minimal pain and return to baseline activity. CONCLUSION: Although the patient had a long course of undertreated postsurgical pain, a multimodal approach targeting different pain etiologies allowed the achievement of satisfactory pain control and return to baseline physical activity.
RESUMO JUSTIFICATIVA E OBJETIVOS: A dor crônica pós-operatória é uma importante complicação cirúrgica com impacto na qualidade de vida. A dor persistente após artrodese cervical pode ser secundária ao posicionamento do paciente, abordagem cirúrgica cervical ou lesão nervosa durante colheita de enxerto ilíaco. As opções terapêuticas para dor crônica pós-operatória têm alguma sobreposição com o tratamento da dor neuropática. No entanto, outros mecanismos de dor podem estar presentes nestes pacientes. RELATO DO CASO: Paciente do sexo masculino, 51 anos, que se apresentou com dor persistente cinco anos após artrodese cervical emergencial, com enxerto de crista ilíaca. Foi encaminhado para a unidade de dor crônica (UDC) para abordagem de meralgia parestésica. No entanto, foram encontradas e tratadas outras etiologias de dor: dor cervical nociceptiva; dor lombar miofascial e dor neuropática pós-operatória inguinal. A abordagem terapêutica utilizada incluiu farmacoterapia com anticonvulsivantes, antidepressivos e opioides fracos, adesivo de capsaicina a 8% e bloqueios regionais. Após quase dois anos de seguimento, foi possível oferecer alta da UDC com queixas álgicas mínimas e retorno da atividade física basal. CONCLUSÃO: Apesar de o paciente ter passado por um longo período sob tratamento insuficiente de dor pós-operatória, uma abordagem multimodal tendo como alvo diferentes etiologias de dor permitiu obter um controle álgico satisfatório e o retorno à atividade física basal.
ABSTRACT
BACKGROUND AND OBJECTIVES: Cardiac Magnetic Resonance Imaging (MRI) is a technique used for evaluation of children with congenital heart diseases. General anesthesia ensures immobility, particularly in uncooperative patients. However, chest wall movements can limit good quality scans. Prolonged apnea may be necessary to decrease respiratory motion artefacts, potentially leading to hypoxemia and other adverse events. The use of a high frequency jet ventilator may be a solution avoiding chest wall movements. CASE REPORT: We report four cases of pediatric patients, ASA II, aged between 4 and 15 years-old, scheduled for cardiac MRI. General anesthesia was proposed and parental informed consent was obtained. After general anesthesia was induced, an uncuffed endotracheal tube was inserted. Then, a 7Fr×40 cm catheter was placed through the endotracheal tube. The proximal outlet of the catheter was attached through a connecting tube to a high frequency jet ventilator (Monsoon III®, Acutronic Medical Systems). Good quality MRI images were obtained. At the end of the procedures, we observed increased salivation and increased end-tidal CO2 (60-70 mmHg), in all patients. The patients were extubated after normocapnia was achieved and neuromuscular blockade reversed. Following appropriate recovery time, the four children were discharged home the same day. CONCLUSIONS: This case series demonstrates that the use of a high frequency jet ventilator for cardiac MRI was feasible, safe, providing good quality cardiac imaging and avoiding anesthesia personnel to be inside the hazardous environment of MRI room. Future studies are needed to confirm its safety and efficiency in pediatric patients.
Subject(s)
Anesthesia, General/methods , Heart Defects, Congenital/diagnostic imaging , High-Frequency Jet Ventilation/methods , Magnetic Resonance Imaging/methods , Adolescent , Child , Child, Preschool , High-Frequency Jet Ventilation/adverse effects , Humans , Intubation, Intratracheal/methods , MaleABSTRACT
Abstract Background and objectives: Cardiac Magnetic Resonance Imaging (MRI) is a technique used for evaluation of children with congenital heart diseases. General anesthesia ensures immobility, particularly in uncooperative patients. However, chest wall movements can limit good quality scans. Prolonged apnea may be necessary to decrease respiratory motion artefacts, potentially leading to hypoxemia and other adverse events. The use of a high frequency jet ventilator may be a solution avoiding chest wall movements. Case report: We report four cases of pediatric patients, ASA II, aged between 4 and 15 years-old, scheduled for cardiac MRI. General anesthesia was proposed and parental informed consent was obtained. After general anesthesia was induced, an uncuffed endotracheal tube was inserted. Then, a 7Fr × 40 cm catheter was placed through the endotracheal tube. The proximal outlet of the catheter was attached through a connecting tube to a high frequency jet ventilator (Monsoon III®, Acutronic Medical Systems). Good quality MRI images were obtained. At the end of the procedures, we observed increased salivation and increased end-tidal CO2 (60-70 mmHg), in all patients. The patients were extubated after normocapnia was achieved and neuromuscular blockade reversed. Following appropriate recovery time, the four children were discharged home the same day. Conclusions: This case series demonstrates that the use of a high frequency jet ventilator for cardiac MRI was feasible, safe, providing good quality cardiac imaging and avoiding anesthesia personnel to be inside the hazardous environment of MRI room. Future studies are needed to confirm its safety and efficiency in pediatric patients.
Resumo Justificativa e objetivos: A ressonância magnética (RM) cardíaca é uma técnica usada na avaliação de crianças com cardiopatias congênitas. A anestesia geral garante imobilidade, especialmente em pacientes não cooperadores, porém os movimentos da parede torácica podem limitar a boa qualidade dos exames. A apneia prolongada pode ser necessária para diminuir os artefatos do movimento respiratório, potencialmente levando à hipoxemia e outros eventos adversos. O uso de ventilação a jato de alta frequência pode ser uma solução para evitar os movimentos da parede torácica. Relato de caso: Relatamos quatro casos de pacientes pediátricos, ASA II, entre 4-15 anos, programados para ressonância magnética cardíaca. Uma anestesia geral foi proposta e assinaturas em termo de consentimento livre e esclarecido foram obtidas dos pais. Após a indução da anestesia geral, um tubo endotraqueal sem balonete foi inserido. Em seguida, um cateter de 7Fr × 40 cm foi inserido através do tubo endotraqueal. A saída proximal do cateter foi conectada, mediante um tubo conector, a um sistema de ventilação a jato de alta frequência (Monsoon III®, Acutronic Medical Systems). Imagens de ressonância magnética de boa qualidade foram obtidas. No fim dos procedimentos, observamos aumento tanto de salivação quanto de CO2 expirado (60-70 mmHg) em todos os pacientes. Os pacientes foram extubados após a obtenção de normocapnia e reversão do bloqueio neuromuscular. Após o tempo de recuperação apropriado, as quatro crianças receberam alta no mesmo dia. Conclusões: Esta série de casos demonstra que o uso de um sistema de ventilação a jato de alta frequência para ressonância magnética cardíaca é viável e seguro, além de fornecer imagens cardíacas de boa qualidade e evitar a presença da equipe de anestesia dentro do ambiente de risco da sala de ressonância magnética. Estudos futuros são necessários para confirmar sua segurança e eficiência em pacientes pediátricos.