Plasma Fibrinogen as a Predictor of Perioperative-Blood-Component Transfusion in Major-Nontraumatic-Orthopedic-Surgery Patients: A Cohort Study.

There is a trend towards increased perioperative bleeding in patients with plasma fibrinogen levels < 200 mg/dL-1. This study aimed to assess whether there is an association between preoperative fibrinogen levels and perioperative blood-product transfusion up to 48 h after major orthopedic surgery. This cohort study included 195 patients who underwent primary or revision hip arthroplasty for nontraumatic etiologies. Plasma fibrinogen, blood count, coagulation tests, and platelet count were measured preoperatively. A plasma fibrinogen level of 200 mg/dL-1 was the cutoff value used to predict blood transfusion. The mean (SD) plasma fibrinogen level was 325 (83) mg/dL-1. Only thirteen patients had levels < 200 mg/dL-1, and only one of them received a blood transfusion, with an absolute risk of 7.69% (1/13; 95%CI: 1.37-33.31%). Preoperative plasma fibrinogen levels were not associated with the need for blood transfusion (p = 0.745). The sensitivity and the positive predictive value of plasma fibrinogen < 200 mg/dL-1 as a predictor of blood transfusion were 4.17% (95%CI: 0.11-21.12%) and 7.69% (95%CI: 1.12-37.99%), respectively. Test accuracy was 82.05% (95%CI: 75.93-87.17%), but positive and negative likelihood ratios were poor. Therefore, preoperative plasma fibrinogen level in hip-arthroplasty patients was not associated with the need for blood-product transfusion.

Anesthesia in pregnant women with HELLP syndrome: case report / Anestesia para gestante com síndrome HELLP: relato de caso

Abstract Background and objectives: HELLP syndrome, characterized by hemolysis, high levels of liver enzyme, and low platelet count, is an advanced clinical stage of pre-eclampsia, progressing to high maternal (24%) and perinatal (up 40%) mortality, despite childbirth care in a timely manner. The goal is to describe the anesthetic management of a case with indication to emergency cesarean. Case report: Female patient, 36 years old, gestational age of 24 weeks, with hypertensive crisis (BP 180/100 mmHg) and severe headache, was admitted to the operating room for a cesarean section after diagnosis of HELLP syndrome. Indicated for general anesthesia, we opted for total intravenous with intubation after rapid sequence induction with propofol and remifentanil in continuous target-controlled infusion, and rocuronium at a dose of 1.2 mg/kg. Maintenance was achieved with propofol and remifentanil. The surgical procedure was uneventful, the child was born with APGAR 1/5 and transferred to the NICU. At the end of surgery, the patient was extubated in the operating room and taken to the ICU. The postoperative period was uneventful with no changes worthy of note and the patient was discharged on the sixth postoperative day. Conclusion: When general anesthesia is the choice in parturient with HELLP syndrome, tracheal intubation with rapid sequence induction due to possible difficult airway, as well as the use of drugs to control the hemodynamic response can minimize the complications associated with the procedure, as occurred in this case.

Resumo Justificativa e objetivos: A síndrome HELLP, caracterizada por hemólise, elevação dos níveis de enzimas hepáticas e plaquetopenia, representa estágio clínico avançado da pré-eclâmpsia, cursando com elevada mortalidade materna (24%) e perinatal (até 40%), apesar da assistência ao parto de forma oportuna. O objetivo é descrever o manejo anestésico de um caso com indicação de cesariana de emergência. Relato de caso: Paciente do sexo feminino, 36 anos, idade gestacional 24 semanas, com crise hipertensiva (PA 180/100 mmHg) e cefaleia intensa, é encaminhada ao Centro Cirúrgico para operação cesariana após diagnóstico de síndrome HELLP. Indicada anestesia geral, optou-se por venosa total com intubação após indução sequencial rápida, com propofol e remifentanil em infusão contínua alvo-controlada e rocurônio na dose de 1,2 mg/kg. A manutenção foi obtida com propofol e remifentanil. O procedimento cirúrgico transcorreu sem anormalidades, a criança nasceu com APGAR 1/5 e foi encaminhada à UTI Neonatal. Ao final da cirurgia, procedeu-se à extubação na sala cirúrgica e a paciente foi encaminhada ao CTI. O pós-operatório decorreu sem alterações dignas de nota e a paciente teve alta no sexto dia pós-operatório. Conclusão: Quando se opta pela anestesia geral em parturiente com síndrome HELLP, a intubação traqueal com técnica de indução sequencial rápida em função de possível via aérea difícil, bem como o emprego de drogas que controlem a resposta hemodinâmica, podem minimizar as complicações associadas ao procedimento, como ocorreu no presente caso.

Anesthesia in pregnant women with HELLP syndrome: case report.

BACKGROUND AND OBJECTIVES: HELLP syndrome, characterized by hemolysis, high levels of liver enzyme, and low platelet count, is an advanced clinical stage of pre-eclampsia, progressing to high maternal (24%) and perinatal (up 40%) mortality, despite childbirth care in a timely manner. The goal is to describe the anesthetic management of a case with indication to emergency cesarean. CASE REPORT: Female patient, 36 years old, gestational age of 24 weeks, with hypertensive crisis (BP 180/100mmHg) and severe headache, was admitted to the operating room for a cesarean section after diagnosis of HELLP syndrome. Indicated for general anesthesia, we opted for total intravenous with intubation after rapid sequence induction with propofol and remifentanil in continuous target-controlled infusion, and rocuronium at a dose of 1.2mg/kg. Maintenance was achieved with propofol and remifentanil. The surgical procedure was uneventful, the child was born with APGAR 1/5 and transferred to the NICU. At the end of surgery, the patient was extubated in the operating room and taken to the ICU. The postoperative period was uneventful with no changes worthy of note and the patient was discharged on the sixth postoperative day. CONCLUSION: When general anesthesia is the choice in parturient with HELLP syndrome, tracheal intubation with rapid sequence induction due to possible difficult airway, as well as the use of drugs to control the hemodynamic response can minimize the complications associated with the procedure, as occurred in this case.

Anesthetic management of a patient with multiple sclerosis - case report / Controle anestésico de paciente com esclerose múltipla - relato de caso

Abstract Background and objectives: Multiple sclerosis is a demyelinating disease of the brain and spinal cord, characterized by muscle weakness, cognitive dysfunction, memory loss, and personality disorders. Factors that promote disease exacerbation are stress, physical trauma, infection, surgery, and hyperthermia. The objective is to describe the anesthetic management of a case referred to urological surgery. Case report: A female patient, 44 years of age, with multiple sclerosis, diagnosed with nephrolithiasis, referred for endoscopic ureterolythotripsy. Balanced general anesthesia was chosen, with midazolam, propofol and remifentanil target-controlled infusion; sevoflurane via laryngeal mask airway; and spontaneous ventilation. Because the patient had respiratory difficulty presenting with chest wall rigidity, it was decided to discontinue the infusion of remifentanil. There was no other complication or exacerbation of disease postoperatively. Conclusion: The use of neuromuscular blockers (depolarizing and non-depolarizing) is a problem in these patients. As there was no need for muscle relaxation in this case, muscle relaxants were omitted. We conclude that the combination of propofol and sevoflurane was satisfactory, not resulting in hemodynamic instability or disease exacerbation.

Resumo Justificativa e objetivos: Esclerose múltipla é doença desmielinizante do cérebro e da medula espinhal, caracterizada por fraqueza muscular, disfunção cognitiva, perda da memória, alterações de personalidade. Fatores que promovem exacerbação da doença são estresse, trauma físico, infecções, cirurgias, hipertermia. O objetivo é descrever a abordagem anestésica de um caso encaminhado a cirurgia urológica. Relato de caso: Paciente do sexo feminino, 44 anos, portadora de esclerose múltipla, com o diagnóstico de nefrolitíase, é encaminhada a ureterolitotripsia endoscópica. Optou-se por anestesia geral balanceada com midazolam, propofol e remifentanil em infusão alvo-controlada, sevoflurano sob máscara laríngea e ventilação espontânea. Tendo apresentado dificuldade ventilatória por tórax rígido, optou-se por interromper a infusão de remifentanil. Não se registraram outras intercorrências nem exacerbação da doença no pós-operatório. Conclusão: O uso de bloqueadores neuromusculares (tanto despolarizantes como não-despolarizantes) constitui um problema nestes pacientes. Como não havia necessidade de relaxamento muscular neste caso, eles foram omitidos. Concluímos que a associação de propofol e sevoflurano foi satisfatória, não resultando em instabilidade hemodinâmica nem exacerbação da doença.

Anesthetic management of a patient with multiple sclerosis - case report.

BACKGROUND AND OBJECTIVES: Multiple sclerosis is a demyelinating disease of the brain and spinal cord, characterized by muscle weakness, cognitive dysfunction, memory loss, and personality disorders. Factors that promote disease exacerbation are stress, physical trauma, infection, surgery, and hyperthermia. The objective is to describe the anesthetic management of a case referred to urological surgery. CASE REPORT: A female patient, 44 years of age, with multiple sclerosis, diagnosed with nephrolithiasis, referred for endoscopic ureterolythotripsy. Balanced general anesthesia was chosen, with midazolam, propofol and remifentanil target-controlled infusion; sevoflurane via laryngeal mask airway; and spontaneous ventilation. Because the patient had respiratory difficulty presenting with chest wall rigidity, it was decided to discontinue the infusion of remifentanil. There was no other complication or exacerbation of disease postoperatively. CONCLUSION: The use of neuromuscular blockers (depolarizing and non-depolarizing) is a problem in these patients. As there was no need for muscle relaxation in this case, muscle relaxants were omitted. We conclude that the combination of propofol and sevoflurane was satisfactory, not resulting in hemodynamic instability or disease exacerbation.

[Anesthesia in pregnant women with HELLP syndrome: case report]. / Anestesia para gestante com síndrome HELLP: relato de caso.

BACKGROUND AND OBJECTIVES: HELLP syndrome, characterized by hemolysis, high levels of liver enzyme, and low platelet count, is an advanced clinical stage of pre-eclampsia, progressing to high maternal (24%) and perinatal (up 40%) mortality, despite childbirth care in a timely manner. The goal is to describe the anesthetic management of a case with indication to emergency caesarean. CASE REPORT: Female patient, 36 years old, gestational age of 24 weeks, with hypertensive crisis (BP 180/100 mmHg) and severe headache, was admitted to the operating room for a cesarean section after diagnosis of HELLP syndrome. Indicated for general anesthesia, we opted for total intravenous with intubation after rapid sequence induction with propofol and remifentanil in continuous target-controlled infusion, and rocuronium at a dose of 1.2 mg/kg. Maintenance was achieved with propofol and remifentanil. The surgical procedure was uneventful, the child was born with APGAR 1/5 and transferred to the NICU. At the end of surgery, the patient was extubated in the operating room and taken to the ICU. The postoperative period was uneventful with no changes worthy of note and the patient was discharged on the sixth postoperative day. CONCLUSION: When general anesthesia is the choice in parturient with HELLP syndrome, tracheal intubation with rapid sequence induction due to possible difficult airway, as well as the use of drugs to control the hemodynamic response can minimize the complications associated with the procedure, as occurred in this case.

[Anesthetic management of a patient with multiple sclerosis - case report]. / Controle anestésico de paciente com esclerose múltipla - relato de caso.

BACKGROUND AND OBJECTIVES: Multiple sclerosis is a demyelinating disease of the brain and spinal cord, characterized by muscle weakness, cognitive dysfunction, memory loss, and personality disorders. Factors that promote disease exacerbation are stress, physical trauma, infection, surgery, hyperthermia. The objective is to describe the anesthetic management of a case referred to urological surgery. CASE REPORT: A female patient, 44 years of age, with multiple sclerosis, diagnosed with nephrolithiasis, referred for endoscopic ureterolythotripsy. Balanced general anesthesia was chosen, with midazolam, propofol and remifentanil target-controlled infusion; sevoflurane via laryngeal mask airway; and spontaneous ventilation. Because the patient had respiratory difficulty presenting with chest wall rigidity, it was decided to discontinue the infusion of remifentanil. There was no other complication or exacerbation of disease postoperatively. CONCLUSION: The use of neuromuscular blockers (depolarizing and non-depolarizing) is a problem in these patients. As there was no need for muscle relaxation in this case, muscle relaxants were omitted. We conclude that the combination of propofol and sevoflurane was satisfactory, not resulting in hemodynamic instability or disease exacerbation.