The effectiveness of erector spina plane, quadratus lumborum blocks, and intrathecal morphine for analgesia after cesarean: a randomized study

SUMMARY OBJECTIVE: This prospective randomized study was conducted at Ataturk University Medical Faculty Hospital, Department of Anesthesia and Reanimation, from June 2022 to May 2023. The aim of this study was to compare the effectiveness of ultrasound-guided erector spinae plane block, quadratus lumborum block, and intrathecal morphine to decrease postoperative pain after cesarean section. METHODS: Sixty-term pregnant women who were scheduled for elective cesarean sections with spinal anesthesia were included. Patients were randomly divided into three groups (n=20 for each group): Group 1: Patients were administered intrathecal morphine during spinal anesthesia; Group 2: Patients performed bilateral erector spinae plane block postoperatively; and Group 3: Patients performed bilateral quadratus lumborum block postoperatively. In the postpartum care unit, patients received intravenous Patient-Controlled Analgesia. The Patient-Controlled Analgesia devices were set to administer an intravenous bolus of 25 μg fentanyl, with a lockout interval of 10 min. Opioid consumption and maximum pain score in the 24 postoperative hours were recorded. RESULTS: Patients in Group 1 had a longer time to first analgesic requirement compared to Group 2 (p=0.017). Opioid consumption and resting and moving visual analog score scores in the first 24 h postoperatively were similar between groups. CONCLUSION: All three methods, including intrathecal morphine, erector spinae plane block, and quadratus lumborum block, are efficacious and comparable in providing postoperative analgesia after cesarean under spinal anesthesia.

New determinants for casual peripheral mechanism of neurogenic lung edema in subarachnoid hemorrhage due to ischemic degeneration of vagal nerve, kidney and lung circuitry. Experimental study

Abstract Purpose: To evaluate whether there is a relationship between renal artery vasospasm related low glomerular density or degeneration and neurogenic lung edema (NLE) following subarachnoid hemorrhage. Methods: This study was conducted on 26 rabbits. A control group was formed of five animals, a SHAM group of 5 to which saline and a study group (n=16) injected with homologous blood into the sylvian cisterna. Numbers of degenerated axons of renal branches of vagal nerves, atrophic glomerulus numbers and NLE scores were recorded. Results: Important vagal degeneration, severe renal artery vasospasm, intrarenal hemorrhage and glomerular atrophy observed in high score NLE detected animals. The mean degenerated axon density of vagal nerves (n/mm2), atrophic glomerulus density (n/mm3) and NLE scores of control, SHAM and study groups were estimated as 2.40±1.82, 2.20±1.30, 1.80±1.10, 8.00±2.24, 8.80±2.39, 4.40±1.14 and 154.38±13.61, 34.69±2.68 and 12.19±1.97 consecutively. Degenerated vagal axon, atrophic glomerulus and NLE scores are higher in study group than other groups and the differences are statistically meaningful (p<0.001). Conclusion: Vagal complex degeneration based glomerular atrophy have important roles on NLE following SAH which has not been extensively mentioned in the literature.

Comparison of transverse short-axis classic and oblique long-axis "Syringe-Free" approaches for internal jugular venous catheterization under ultrasound guidance / Comparação das abordagens clássica transversal no eixo curto e longitudinal oblíqua no eixo longo sem seringa para cateterização de veia jugular interna guiada por ultrassom

Abstract Background and objectives: There are different ultrasound probe positions used for internal jugular venous catheter placement. Also, in-plane or out of plane needle approach may be used for catheterization. Transverse short-axis classic approach is the most popular performed approach in literature. "Syringe-Free" is a new described technique that is performed with oblique long-axis approach. We aimed to compare performance of these two approaches. Methods: This study was conducted as a prospective and randomized study. 80 patients were included the study and allocated into two groups that were named Group C (transverse short-axis classic approach) and Group SF (oblique long-axis syringe-free approach) by a computer-generated randomization. The primary outcome was mean time that guidewire is seen in the Internal jugular vein (performing time). The secondary outcomes were to compare number of needle pass, number of skin puncture and complications between two groups. Results: Demographic and hemodynamic data were not significantly different. The mean performing time was 54.9 ± 19.1 s in Group C and 43.9 ± 15.8 s in Group SF. Significant differences were found between the groups (p = 0.006). Mean number of needle pass was 3.2 (± 2.1) in Group C and 2.1 (± 1.6) in Group SF. There were statistically significant differences between two groups (p = 0.002). The number of skin puncture was 1.6 (± 0.8) and 1.2 (± 0.5) in Group C and SF, respectively (p = 0.027). Conclusion: "Syringe-Free" technique has lower performing time, number of needle pass and skin puncture. Also, it allows to follow progress of guide-wire under continuous ultrasound visualization and the procedure does not need assistance during catheter insertion. Namely, "Syringe-Free" is effective, safe and fast technique that may be used to place internal jugular venous catheter.

Resumo Justificativa e objetivos: Há diferentes posições do probe do ultrasom que são utilizadas para a colocação de cateter em veia jugular interna. Além disso, a aproximação da agulha no plano ou fora do plano pode ser usada para o cateterismo. A abordagem transversal clássica no eixo curto é a abordagem mais popular na literatura. Sem seringa é uma nova técnica descrita, realizada com a abordagem oblíqua no eixo longo. Nosso objetivo foi comparar o desempenho dessas duas abordagens. Métodos: Este foi um estudo prospectivo e randômico. No total, 80 pacientes foram incluídos no estudo e divididos em dois grupos denominados Grupo C (abordagem transversal clássica no eixo curto) e Grupo SF (abordagem sem seringa oblíqua no eixo longo) por meio de randomização gerada por computador. O desfecho primário foi o tempo médio para a visibilização do fio-guia na veia jugular interna (tempo de execução). Os desfechos secundários foram o número de passagens da agulha, o número de punções da pele e as complicações entre os dois grupos. Resultados: Os dados demográficos e hemodinâmicos não foram significativamente diferentes. O tempo médio de execução foi de 54,9 ± 19,1 segundos no Grupo C e 43,9 ± 15,8 segundos no Grupo SF. Diferenças significativas foram observadas entre os grupos (p = 0,006). O número médio de passagens da agulha foi de 3,2 (± 2,1) no Grupo C e 2,1 (± 1,6) no Grupo SF. Houve diferença estatisticamente significativa entre os dois grupos (p = 0,002). O número de punções da pele foi de 1,6 (± 0,8) no Grupo C e 1,2 (± 0,5) C no Grupo SF (p = 0,027). Conclusão: A técnica sem seringa apresentou tempo de execução, número de passagens da agulha e número de punções da pele menores. Além disso, essa técnica permite acompanhar o progresso do fio-guia com visibilização ecográfica contínua e o procedimento não precisa de auxílio durante a inserção do cateter. Ou seja, sem seringa é uma técnica eficaz, segura e rápida que pode ser usada para a colocação de cateter em veia jugular interna.

Anesthetic management of a pediatric patient with hypohidrotic ectodermal dysplasia undergoing emergency surgery / Manejo anestésico de paciente pediátrico com displasia ectodérmica hipoidrótica submetido a cirurgia de emergência

ABSTRACT Ectodermal dysplasias are rare conditions with a triad of hypotrichosis, anodontia and anhidrosis. In literature review there have been only a few reports of anesthetic management of patients with ectodermal dysplasias. Hyperthermia is a very serious risk which may occur due to the defect of sweat glands. The present case involves a 10-year-old child with ectodermal dysplasia who presented with an acute abdomen and was considered for an emergency surgery. Our aim was to demonstrate the successful management of this case using a combination of general and epidural anesthesia. It is important for anesthesiologist to have information about this syndrome in case of emergency operations, since it can prevent serious complications and even save lives.

As displasias ectodérmicas são condições raras, com uma tríade de hipotricose, anodontia e anidrose. Em revisão da literatura há apenas alguns relatos de manejo anestésico de pacientes com displasias ectodérmicas. Hipertermia é um risco muito sério que pode ocorrer por causa de defeito das glândulas sudoríparas. O presente caso envolve uma criança de 10 anos com displasia ectodérmica que se apresentou com abdome agudo e foi considerada para uma cirurgia de emergência. Nosso objetivo foi demonstrar o manejo bem-sucedido desse caso, com o uso de uma combinação de anestesia geral e peridural. É importante para o anestesiologista obter informações sobre essa síndrome, em caso de operações de emergência, pois pode evitar complicações graves e até salvar vidas.