Anesthesia Medication's Impacts on Inflammatory and Neuroendocrine Immune Response in Patients Undergoing Digestive Endoscopy.

The aim of this study was to explore the impact of anesthetic drugs currently used to perform lower digestive endoscopy on serum concentrations of inflammation markers and catecholamines. We selected 120 patients and divided them into three lots of 40 patients each: L1, in which no anesthetics were used; L2, in which propofol was used; and L3, in which propofol combined with fentanyl was used. All patients had serum concentrations of adrenaline/epinephrine (EPI), noradrenaline/norepinephrine (NE), tumor necrosis factor alpha (TNF-α), interleukin-4 (IL-4), IL-6, IL-8, and IL-10, taken at three time points: at the beginning of the endoscopic procedure (T0), 15 min after (T1), and 2 h after the end of the endoscopic procedure (T2). The results of the research showed changes in the levels of catecholamines and interleukins (ILs) at T0, with an increased response in L1 above the mean recorded in L2 and L3 (p < 0.001). At T1, increased values were recorded in all lots; values were significantly higher in L1. At T2, the values recorded in L3 were significantly lower than the values in L2 (student T, p < 0.001) and L1, in which the level of these markers continued to increase, reaching double values compared to T0 (student T, p < 0.001). In L2 at T1, the dose of propofol correlated much better with NE, EPI, and well-known cytokines. Our results show that propofol combined with fentanyl can significantly inhibit the activation of systemic immune and neuroendocrine response during painless lower digestive endoscopy.

Effect of intravenous anesthetic drugs on fertilization rate in oocyte retrieval.

BACKGROUND: The purpose of this study was to investigate the effects of intravenous anesthetic drugs on fertilization rate in subjects receiving oocyte retrieval by assisted reproduction technology (ART). METHODS: A retrospective cohort study was designed. The clinical information of subjects who received oocyte retrieval procedure was collected. The subjects were divided into two groups based on the type of anesthesia used: the no-anesthesia group and the intravenous anesthesia group. Propensity score matching (PSM) was performed and multiple linear regression analyses were conducted. Fertilization rate was compared between the two groups before and after PSM. RESULTS: A total of 765 subjects were divided into two groups: the no-anesthesia group (n = 482) and the intravenous anesthesia group (n = 283). According to propensity scores, 258 pairs of subjects were well matched, and the baseline data between the two groups were not significantly different (P > 0.05). Fertilization rate was 77% in the intravenous anesthesia group, and 76% in the no-anesthesia group, without significant between-group difference (P = 0.685). Before matching, Poisson regression analysis showed no effect of intravenous anesthetic drugs on fertilization rate (RR = 0.859, 95%CI: 0.59 to 1.25, P = 0.422). After matching, no difference was found either (RR = 0.935, 95%CI: 0.67 to 1.29, P = 0.618). CONCLUSION: Intravenous anesthetic drugs may exert no effects on fertilization rate in subjects receiving ART.

Sustained effort network for treatment of status epilepticus/European academy of neurology registry on adult refractory status epilepticus (SENSE-II/AROUSE).

BACKGROUND: Status Epilepticus (SE) is a common neurological emergency associated with a high rate of functional decline and mortality. Large randomized trials have addressed the early phases of treatment for convulsive SE. However, evidence regarding third-line anesthetic treatment and the treatment of nonconvulsive status epilepticus (NCSE) is scarce. One trial addressing management of refractory SE with deep general anesthesia was terminated early due to insufficient recruitment. Multicenter prospective registries, including the Sustained Effort Network for treatment of Status Epilepticus (SENSE), have shed some light on these questions, but many answers are still lacking, such as the influence exerted by distinct EEG patterns in NCSE on the outcome. We therefore initiated a new prospective multicenter observational registry to collect clinical and EEG data that combined may further help in clinical decision-making and defining SE. METHODS: Sustained effort network for treatment of status epilepticus/European Academy of Neurology Registry on refractory Status Epilepticus (SENSE-II/AROUSE) is a prospective, multicenter registry for patients treated for SE. The primary objectives are to document patient and SE characteristics, treatment modalities, EEG, neuroimaging data, and outcome of consecutive adults admitted for SE treatment in each of the participating centers and to identify factors associated with outcome and refractoriness. To reach sufficient statistical power for multivariate analysis, a cohort size of 3000 patients is targeted. DISCUSSION: The data collected for the registry will provide both valuable EEG data and information about specific treatment steps in different patient groups with SE. Eventually, the data will support clinical decision-making and may further guide the planning of clinical trials. Finally, it could help to redefine NCSE and its management. TRIAL REGISTRATION: NCT number: NCT05839418.

Defective autophagy contributes to bupivacaine-induced aggravation of painful diabetic neuropathy in db/db mice.

Current evidence suggests that hyperactivated or impaired autophagy can lead to neuronal death. The effect of local anesthetics on painful diabetic neuropathy (PDN) and the role of autophagy in the above pathological process remain unclear, warranting further studies. So, PDN models were established by assessing the paw withdrawal threshold (PWT) and paw withdrawal latency (PWL) in leptin gene-mutation (db/db) mice. Wild type (WT) and PDN mice received intrathecal 0.75% bupivacaine or/with intraperitoneal drug treatment (rapamycin or bafilomycin A1). Subsequently, the PWT and PWL were measured to assess hyperalgesia at 6 h, 24 h, 30 h, and 48 h after intrathecal bupivacaine. Also, sensory nerve conduction velocity (SNCV) and motor nerve conduction velocity (MNCV) were measured before and 48 h after intrathecal bupivacaine treatment. The spinal cord tissue of L4-L6 segments and serum were harvested to evaluate the change of autophagy, oxidative stress, oxidative injury, and apoptosis. We found that bupivacaine induced the activation of autophagy but did not affect the pain threshold, SNCV and MNCV in WT mice at predefined time points. Conversely, bupivacaine lowered autophagosome generation and degradation, slowed SNCV and aggravated spinal dorsal horn neuron oxidative injury and hyperalgesia in PDN mice. The autophagy activator (rapamycin) could decrease spinal dorsal horn neuron oxidative injury, alleviate the alterations in SNCV and hyperalgesia in bupivacaine-treated PDN mice. Meanwhile, the autophagy inhibitor (bafilomycin A1) could exacerbate spinal dorsal horn neuron oxidative injury, the alterations in SNCV and hyperalgesia in bupivacaine-treated PDN mice. Our results showed that bupivacaine could induce defective autophagy, slowed SNCV and aggravate spinal dorsal horn neuron oxidative injury and hyperalgesia in PDN mice. Restoring autophagy may represent a potential therapeutic approach against nerve injury in PDN patients with local anesthesia and analgesia.

Antiepileptic and anesthetic drugs in the intensive care unit. Their impact on non-convulsive status epilepticus mortality / Drogas antiepilépticas y anestésicas en la unidad de terapia intensiva. Su impacto en la mortalidad en el estado de mal epiléptico no convulsivo

Abstract Background: Status epilepticus (SE) is a neurological emergency. Non-convulsive status epilepticus (NCSE) can only be diagnosed by electroencephalogram (EEG) because the motor clinical symptoms are usually subtle or absent, with high mortality. The best treatment is still unknown. Objectives: Our aim was to assess anticonvulsive and anesthetic drugs in NCSE and their correlation with Epidemiology-based Mortality Score in Status Epilepticus (EMSE), Status Epilepticus Severity Score (STESS) and mortality. Methods: Retrospective, observational, descriptive, cross-sectional study. Ninety patients in intensive care unit over 18 years-old (57 females [63.3%] and 33 males [36.6%], mean age 63.5 years [SD ± 19]) with NCSE, at the Buenos Aires British Hospital. Data was collected between January 2018 and June 2021. An adjusted mul tivariate statistical analysis was performed. Ninety-five (95%) CI, p<0.05 as statistically significant. EMSE and STESS were used in this study. Results: Total mortality rate was 37.8% (34/90), and in patients ≥ 65 years-old (54/90) it was 40.7% (22/54). Patients with 0-2 STESS (11/90) were discharged, while those with STESS ≥ 3 (79/90) had a 43% death rate (34/79). Patients with EMSE < 34 (27/90) had 7.4% (2/27) death rate, while those with EMSE ≥ 34 (63/90) had 50.8% (32/63). No significant differences were found in survival with regard to the number of antiepileptic drugs administered. Pa tients treated with anesthetics presented a 2.6-fold death risk increase (95% CI 1.001-6.83). Discussion: It could be assumed that mortality rate increases 2.6-fold when patients are treated with anes thetic drugs, regardless of the number of antiepileptic drugs previously administered.

Resumen Introducción: El estado de mal epiléptico (SE) es una emergencia neurológica. El SE no convulsivo (SENC) se diagnostica únicamente por electroencefalograma de bido a la ausencia o sutileza de sintomatología clínica motora, con una mortalidad elevada. No se conoce aún el mejor tratamiento. Objetivos: Evaluar drogas anticonvulsivas y anestési cas en el SENC y su correlación con Epidemiology-based Mortality Score in Status Epilepticus (EMSE), Status Epilep ticus Severity Score (STESS) y el índice de mortalidad. Métodos: Estudio retrospectivo, observacional, de scriptivo, de corte transversal. Noventa pacientes ≥ 18 años (57 mujeres [63.3%] y 33 hombres [36.6%], media de edad 63.5 años [DS ± 19]) con diagnóstico de SENC, en el Hospital Británico. Estudio realizado entre enero 2018 y junio 2021. Análisis estadístico multivariado ajustado. IC 95% p< 0.05 como estadísticamente significativo. Se utilizaron escalas de EMSE y STESS. Resultados: La mortalidad total fue de 37.8% (34/90). Los pacientes ≥ 65 años (54/90) presentaron una mayor tasa de muerte 40.7% (22/54), todos aquellos con STESS de 0-2 (11/90) egresaron, mientras que entre los que presentaron ≥ 3 (79/90) el 43% (34/79) falleció. De los pacientes con EMSE < 34 (27/90) dos fallecieron (7.4%) y de aquellos con EMSE ≥ 34 (63/90) falleció el 50.8% (32/63). No hallamos diferencias significativas entre cantidad de drogas antiepilépticas utiliza das y supervivencia. Pacientes con anestésicos tuvieron un aumento del riesgo de muerte 2.6 veces (IC 95% 1.001-6.83). Discusión: De acuerdo a esto la mortalidad con drogas anestésicas aumenta, independientemente de la cantidad de drogas anticonvulsivas utilizadas previamente.

Prevalence of preoperative anxiety in patients posted for surgical procedures and its relation to the doses of anesthetic drugs: A cross-sectional study.

Background: In patients undergoing surgical procedures, preoperative period is one of the most worrying periods. There are only few studies which revealed that increased preoperative anxiety is associated with increased requirements of doses of anesthetic agents. Aim: The aim of this study is to assess the prevalence of preoperative anxiety in patients posted for surgical procedures and its relation to the doses of anesthetic drugs. Materials and Methods: This is a cross-sectional, analytical study done between January 2021 and April 2021. A total of 100 patients undergoing surgery have given consent to participate in the study by filling self-designed questionnaire, Amsterdam Preoperative Anxiety and Information Scale (APAIS). Data analysis was done by SPSS version 24 using appropriate statistical tests. Results: Preoperative anxiety was noted in 21% of the patients who were undergoing surgery. The association between preoperative anxiety and need for increase in the doses of anesthetic agents during intraoperative period was found to be statistically significant (P < 0.004). Conclusion: A significant number of patients required increased amounts of anesthetic drugs to reduce anxiety during intraoperative period. Therefore, appropriate methods have to be introduced to address the concerns of patients undergoing surgery and thereby reducing anxiety.

Lesión hepática inducida por fármacos anestésicos / Liver injury induced by anesthetic drugs

Resumen: El daño hepático por medicamentos no es tan raro, su diagnóstico es por exclusión, en algunos casos puede inducir falla hepática aguda. Se realizó una revisión de la bibliografía de los medicamentos más utilizados en los procedimientos anestésicos y el riesgo que existe en estos medicamentos de desarrollar daño hepático por fármacos; los únicos medicamentos que tienen mayor riesgo de hepatotoxicidad son los inhalados halogenados, particularmente el halotano, ahora en desuso, el resto de los medicamentos son seguros.

Abstract: Liver damage by drugs is not so rare, its diagnosis is by exclusion, in some cases can induce acute liver failure. A review of the literature of the drugs most used in anesthetic procedures and the risk that exists of these drugs in the development of liver damage by drugs was carried out; the only drugs that have a higher risk of hepatotoxicity are halogenated inhaled ones, particularly halothane now in disuse, the rest of the drugs are safe.

Research progress on the effect of general anesthetics on perioperative sleep / 中华内分泌外科杂志

Sleep is an important activity for the body to recover. After general anesthesia, patients often experience sleep problems such as decreased sleep quality and sleep inversion. Many studies have shown that anesthetic drugs can cause sleep disorders by disturbing sleep homeostasis and circadian rhythm, and induce a series of complications, which seriously affect the recovery and prognosis of patients. This article aims to review the effects of general anesthetics on perioperative sleep, its mechanism, and preventive measures, in order to optimize the selection of anesthetics, and provide a reference for prevention of perioperative sleep disorders and improvement of sleep quality.

Sevoflurano tópico: una experiencia galena / Topical sevoflurane: a galenic experience

El sevoflurano es un líquido volátil de la familia de los hidrocarburos halogenados derivados del éter que está aprobado para realizar la inducción y elmantenimiento de la anestesia general inhalatoria en ambiente exclusivamentehospitalario. En esta revisión se expone la experiencia pionera de nuestra Unidad del Dolor en el tratamiento domiciliario de heridas dolorosas complejasmediante irrigaciones de sevoflurano tópico según un protocolo aprobadopara su uso fuera de ficha técnica. Se abordan aspectos de seguridad y eficacia, tanto analgésica como antimicrobiana y procicatrizante, y se comentanalgunas líneas de futuro en cuanto a nuevas formulaciones para uso tópico.Tras más de 7 años de vigencia del referido protocolo, contamos con unaexperiencia acumulada de más de 70.000 aplicaciones de sevoflurano tópico.En líneas generales, el efecto analgésico aparece rápidamente en cuestión deminutos, es de gran intensidad, y de duración prolongada por espacio de variashoras; gracias a ello los pacientes pueden reducir el consumo de analgésicossistémicos y, en general, su calidad de vida mejora. Además, existen indiciosque sugieren que también ejerce acción antimicrobiana y procicatrizante. (AU)

Sevoflurane is a volatile liquid from the family of ether-derived halogenated hydrocarbons that is approved for the induction and maintenance ofinhalational general anesthesia in the hospital setting. This review describes the pioneering experience of a Spanish Pain Unit in the home treatmentof complicated painful wounds using topical sevoflurane instillations according to a protocol approved for off-label use. Aspects of safety and efficacy, both analgesic, antimicrobial and pro-healing are addressed, andsome future lines of research are discussed in terms of new formulationsfor topical use. After more than seven years of use of the protocol, anexperience of over 70,000 applications of topical sevoflurane has beengained. In general terms, the analgesic effect appears quickly, is highlyintense and persists for several hours. As a result, patients can reduce theirconsumption of systemic analgesics and benefit from an improvement intheir quality of life. In addition, there are signs that suggest sevofluranealso possesses antimicrobial and pro-healing properties. Regarding safety,pruritus at the level of the periulcerous skin is the most frequently reportedadverse effect, although it is usually transient and well-tolerated, and nosystemic toxicity has been reported. Overall, the risk-benefit balance of thedrug has so far been very favorable. To avoid manipulation of this volatileliquid, we have developed a new formulation of sevoflurane in gel form,which has made it possible to successfully apply sevoflurane in the contextof painful pathologies where the skin remains intact. Furthermore, thesetypes of new formulations, including sevoflurane microspheres, which wehave also developed, could improve the efficacy and safety of topicalsevoflurane while reducing the occupational exposure of healthcare staff.This means that the development of new formulations is a field with a verypromising future. (AU)

Should maternal anesthesia delay breastfeeding? A systematic review of the literature / Anestesia materna deve atrasar a amamentação? Revisão sistemática da literatura

Abstract Introduction: The importance and benefits of breastfeeding for the babies and mothers are well established and documented in the literature. However, it is frequent that lactating mothers need to undergo general or spinal anesthesia and, due to the lack of information, many of them interrupt breastfeeding after anesthesia. There are limited data available regarding anesthetics transfer to breast milk. This review aims to develop some considerations and recommendations based on available literature. Methods: A systematic search of the literature was conducted by using the following health science databases: Embase, Lilacs, Pubmed, Scopus, and Web of Science. The latest literature search was performed on April 6th, 2018. Additional literature search was made via the World Health Organization's website. We used the following terms for the search strategy: "Anesthesia" and "Breastfeeding", and their derivatives. Results: In this research, 599 registers were found, and 549 had been excluded by different reasons. Fifty manuscripts have been included, with different designs of studies: prospective trials, retrospective observational studies, reviews, case reports, randomized clinical trials, case-control, and website access. Small concentrations of the most anesthetic agents, are transferred to the breast milk; however, their administration seem to be safe for lactating mothers when administered as a single dose during anesthesia and this should not contraindicate the breastfeeding. On the other hand, high-doses, continuous or repeated administration of drugs increase the risk of adverse effects on neonates, and should be avoided. Few drugs, such as diazepam and meperidine, produce adverse effects on breastfed babies even in single doses. Dexmedetomidine seems to be safe if breastfeeding starts 24 h after discontinuation of the drug. Conclusions: Most of the anesthetic drugs are safe for nursing mothers and offer low risk to the breastfed neonates when administered in single-dose. However, high-dose and repeated administration of drugs significantly increase the risk of adverse effects on neonates. Moreover, diazepam and meperidine should be avoided in nursing women. Finally, anesthesiologists and pediatricians should consider individual risk/benefit, with special attention to premature neonates or babies with concurrent diseases since they are more susceptible to adverse effects.

Resumo Introdução: A importância e os benefícios do aleitamento materno para os bebês e para as mães estão bem estabelecidos e documentados na literatura. No entanto, é frequente que mães lactantes precisem se submeter à anestesia geral ou raquianestesia e, devido à falta de informações, muitas delas interrompem a amamentação após a anestesia. Existem poucos dados disponíveis sobre a transferência de anestésicos para o leite materno. O objetivo desta revisão foi desenvolver algumas considerações e recomendações com base na literatura disponível. Métodos: Uma busca sistemática da literatura realizada usando com os seguintes bancos de dados em ciências da saúde: Embase, Lilacs, Pubmed, Scopus e Web of Science. A pesquisa bibliográfica mais recente foi realizada em 6 de abril de 2018. Uma pesquisa bibliográfica adicional foi realizada através do site da Organização Mundial da Saúde. Usamos os seguintes termos para a estratégia de busca: "Anestesia" e "Aleitamento materno" e seus derivados. Resultados: Nesta pesquisa, 599 registros foram encontrados e 549 foram excluídos por diferentes razões. Foram incluídos 50 manuscritos, com diferentes modelos de estudo: estudos prospectivos, estudos observacionais retrospectivos, revisões, relatos de casos, ensaios clínicos randômicos, caso-controle e acesso a sites. Pequenas concentrações da maioria dos agentes anestésicos são transferidas para o leite materno; entretanto, sua administração parece ser segura para mães lactantes quando administrados em dose única durante a anestesia e isso não deve contraindicar o aleitamento materno. Por outro lado, altas doses, administração contínua ou repetida dos fármacos aumentam o risco de efeitos adversos em neonatos e devem ser evitados. Poucas drogas, como diazepam e meperidina, produzem efeitos adversos em bebês amamentados, mesmo quando administradas em doses únicas. Dexmedetomidina parece ser segura se a amamentação começar 24 horas após a interrupção do medicamento. Conclusões: A maioria dos anestésicos é segura para mães que amamentam e oferecem baixo risco para os recém-nascidos amamentados quando a administração é em dose única. No entanto, altas doses e repetidas administrações de drogas aumentam significativamente o risco de efeitos adversos em recém-nascidos. Além disso, diazepam e meperidina devem ser evitados em mulheres que amamentam. Finalmente, anestesiologistas e pediatras devem considerar o risco-benefício individual, com atenção especial para os recém-nascidos prematuros ou bebês com doenças concomitantes, pois são mais suscetíveis a efeitos adversos.

Sistema imune e anestesia / Immune system and anesthesia

Tanto a anestesia quanto a cirurgia exercem efeitos imunomodulatórios e vários estudos têm sido feitos com o intuito de demonstrar o impacto dos fármacos anestésicos no sistema imune. Os procedimentos cirúrgicos associam-se à depressão da resposta imunológica mediada por células e resposta inflamatória excessiva. Existem evidências de que os fármacos anestésicos e a transfusão de sangue alogênico afetam váriosparâmetros do sistema imune. Por outro lado, existem fármacos anestésicos capazes de atenuar as alterações imunes intraoperatórias, exercendo efeitos potencialmente favoráveis. Muitas evidências demonstram também que os fármacos utilizados e os eventos intraoperatórios, como a transfusão de sangue alogênico, podem afetar a morbimortalidade meses ou anos após o procedimento cirúrgico. Portanto, é de grande importância o conhecimento das alterações causadas pelos fármacos anestésicos no sistema imune, não apenas para evitar eventos desfavoráveis, como também para agir profilaticamente com o intuito de proteger os pacientes das agressões acarretadas pelo procedimento anestésico-cirúrgico.

Both anesthesia and surgery have immunomodulatory effects, and several studies have attempted to demonstrate the impact of anesthetic drugs on the immune system. Surgical procedures are associated with depression of cell-mediated immune response and excessive inflammatory response. Evidence shows that anesthetic drugs and allogeneic blood transfusion affect several parameters of the immune system. On the other hand, some anesthetic drugs can mitigate intraoperatory immune alterations, thus having potentially favorable effects. Evidence also shows that anesthetic drugs and intraoperatory events, such as allogeneic blood transfusion, may affect morbimortality for months or yearsafter the surgical procedure. Thereafter, it is important to understand the alterations that anesthetic drugs causes in the immune system, not only as a means of avoiding unfavorable events, but also of acting prophylactically to protect patients from the aggressions ofanesthetic and surgical procedures

Experience of Flow Management on the Use of Anesthetic Drugs / 中国药房

OBJECTIVE: To ensure legal,rational and safe use of anesthetic drugs.METHODS: Based on the related laws and regulations as well as the actuality,the regulatory regime on the use of anesthetic drugs was set and enforced.RESULTS: The regulations about the use of anesthetic drugs were able to be implemented satisfactorily,and the regulatory regime has changed the abstract management connotation into rapid process.CONCLUSION: It's operative and efficient to adopt flow management on the use of anesthetic drugs.