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Nitroxyl radical compounds, such as 2,2,6,6-tetramethylpiperidine 1-oxyl (TEMPO), are stable radical compounds with a variety of unique characteristics, including fluorescence quenching. In this study, we investigated the fluorescence quenching effect of nortropine N-oxyl (NNO), which is a highly active nitroxyl radical that is more active than TEMPO in oxidation catalysis. The fluorescence intensity of 7-amino-4-methylcoumarin (AMC) was quenched by NNO and TEMPO to 5% and 95% of the initial fluorescence intensity, respectively, indicating highly efficient quenching by NNO. In addition, we used this reaction to measure glutathione concentration. The quenching effect of NNO was abrogated by the chemical reaction with glutathione, resulting in restoration of AMC fluorescence. This response was observed at glutathione concentrations from 10 µM to 1 mM, and good calibration curves were obtained from 10 to 250 µM.
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Electrochemical enzyme sensors are suitable for simple monitoring methods, for example, as glucose sensors for diabetic patients; however, they have several disadvantages arising from the properties of the enzyme. Therefore, non-enzymatic electrochemical sensors using functional molecules are being developed. In this paper, we report the electrochemical characterization of a new hydroxylamine compound, 7-azabicyclo[2.2.1]heptan-7-ol (ABHOL), and its application to glucose sensing. Although the cyclic voltammogram for the first cycle was unstable, it was reproducible after the second cycle, enabling electrochemical analysis of ethanol and glucose. In the first cycle, ABHOL caused complex reactions, including electrochemical oxidation and comproportionation with the generated oxoammonium ions. The electrochemical probe performance of ABHOL was more efficient than the typical nitroxyl radical compound, 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO), and had similar efficiency to 9-azabicyclo[3.3.1]nonane N-oxyl (ABNO), which is activated by the bicyclic structure. The results demonstrated the advantages of ABHOL, which can be synthesized from inexpensive materials via simple methods.
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Compostos Azabicíclicos , Etanol , Glucose , Humanos , Compostos Azabicíclicos/químicaRESUMO
AIMS/HYPOTHESIS: Previous studies have suggested that glucose variability may accelerate atherosclerosis progression in people with type 2 diabetes. Current guidelines recommend assessing glycaemic control using continuous glucose monitoring (CGM), which provides a comprehensive glycaemic profile to supplement HbA1c measurement. However, the association between CGM-derived metrics and atherosclerosis progression is not entirely clear. METHODS: This exploratory study used baseline data and data obtained after 104 weeks from an ongoing prospective, multicentre, observational study. Six hundred study participants with type 2 diabetes and no apparent history of symptomatic cardiovascular disease underwent CGM and ultrasonographic atherosclerosis measurements of the carotid arteries, including the intima-media thickness (IMT) and grey-scale median (GSM), at baseline and 104 weeks. Non-invasive ultrasonic tissue characterisation of the carotid artery wall or plaque using the GSM reflects vascular composition. Multivariate regression models were used to analyse the association between CGM-derived indices, mainly time in range (TIR) and CV, and changes in carotid atherosclerosis index values. RESULTS: Over the 104-week study period, there were modest increases in mean IMT (from 0.759±0.153 to 0.773±0.152 mm, p<0.001) and thickened-lesion GSM (from 43.5±19.5 to 53.9±23.5 units, p<0.001), but no significant changes in common carotid artery maximum-IMT (from 1.109±0.442 to 1.116±0.469 mm, p=0.453) or mean GSM (from 48.7±19.3 to 49.8±20.8 units, p=0.092). In a linear regression model with adjustment for possible atherosclerotic risk factors, including HbA1c, TIR and CV at baseline were significantly associated with the annual change in mean GSM (regression coefficient per 10% increase in TIR 0.52; 95% CI 0.06, 0.98; Hochberg-adjusted p value 0.038; regression coefficient per 1% increase in CV -0.12; 95% CI -0.22, -0.02; Hochberg-adjusted p value 0.038). TIR and CV at baseline were also significantly associated with the annual change in thickened-lesion GSM (regression coefficient per 10% increase in TIR 0.95; 95% CI 0.12, 1.79; Hochberg-adjusted p value 0.038; regression coefficient per 1% increase in CV -0.19; 95% CI -0.36, -0.01; Hochberg-adjusted p value 0.038). Participants who achieved target CGM-derived metrics at baseline, as proposed by an international consensus, showed significant annual changes in mean GSM compared with those who did not (0.94±6.88 vs -0.21±6.19 units/year, p=0.007). CONCLUSIONS/INTERPRETATION: TIR and CV were significantly associated with changes in the tissue characteristics of the carotid artery wall. TRIAL REGISTRATION: University Hospital Medical Information Network Clinical Trials Registry, number UMIN000032325.
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Aterosclerose , Diabetes Mellitus Tipo 2 , Humanos , Diabetes Mellitus Tipo 2/tratamento farmacológico , Espessura Intima-Media Carotídea , Estudos Prospectivos , Glicemia , Automonitorização da Glicemia , Artérias Carótidas/diagnóstico por imagem , Artéria Carótida Primitiva/diagnóstico por imagemRESUMO
Bio-orthogonal ligations that crosslink living cells with a substrate or other cells require high stability and rapid kinetics to maintain the nature of target cells. In this study, we report water-soluble cyclooctadiyne (WS-CODY) derivatives that undergo an ion-pair enhanced double-click reaction. The cationic side chain of WS-CODY accelerated the kinetics on the azide-modified cell surface due to proximity effect. Cationic WS-CODY was able to crosslink azide-modified, poorly adherent human lung cancer PC-9 cells not only to azide-grafted glass substrates but also to other cells within 5-30 min. We discovered that cell-substrate crosslinking induced the ITGA5 gene expression, whereas cell-cell crosslinking induced the CTNNA1 gene, according to the adhesion partner. Ion-pair-enhanced WS-CODY can be applied to a wide range of cells with established azide modifications and is expected to provide a powerful tool to regulate cell-substrate and cell-cell interactions.
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BACKGROUND: Tranexamic acid (TXA) may reduce intraoperative blood loss, but it has not been investigated in pancreaticoduodenectomy (PD). METHODS: A pragmatic, multicentre, randomized, blinded, placebo-controlled trial was conducted. Adult patients undergoing planned PD for biliary, duodenal, or pancreatic diseases were randomly assigned to TXA or placebo groups. Patients in the TXA group were administered 1 g TXA before incision, followed by a maintenance infusion of 125 mg/h TXA. Patients in the placebo group were administered the same volume of saline as those in the placebo group. The primary outcome was blood loss during PD. The secondary outcomes included perioperative blood transfusions, operating time, morbidity, and mortality. RESULTS: Between September 2019 and May 2021, 218 patients were randomly assigned and underwent surgery (108 in the TXA group and 110 in the placebo group). Mean intraoperative blood loss was 659 ml in the TXA group and 701 ml in the placebo group (mean difference -42 ml, 95 per cent c.i. -191 to 106). Of the 218 patients, 202 received the intervention and underwent PD, and the mean blood loss during PD was 667 ml in the TXA group and 744 ml in the placebo group (mean difference -77 ml, 95 per cent c.i. -226 to 72). The secondary outcomes were comparable between the two groups. CONCLUSION: Perioperative TXA use did not reduce blood loss during PD. REGISTRATION NUMBER: jRCTs041190062 (https://jrct.niph.go.jp).
Removing part of the pancreas is an operation with a risk of major blood loss. Tranexamic acid is a drug thought to reduce blood loss. This study asked the question, 'Does tranexamic acid reduce blood loss during surgery on the pancreas?' Half of patients received tranexamic acid during surgery. The other half received only standard care. This study showed that tranexamic acid did not decrease the blood loss during the surgery and may have little effect in patients having a pancreaticoduodenectomy.
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Antifibrinolíticos , Ácido Tranexâmico , Adulto , Humanos , Ácido Tranexâmico/uso terapêutico , Antifibrinolíticos/uso terapêutico , Perda Sanguínea Cirúrgica/prevenção & controle , Pancreaticoduodenectomia/efeitos adversos , Método Duplo-Cego , Resultado do TratamentoRESUMO
Appendiceal mucinous neoplasm is a relatively rare disease. It is classified as mucinous adenocarcinoma(MACA)and low- grade appendiceal mucinous neoplasm(LAMN). We retrospectively evaluated 16 cases of appendiceal mucinous neoplasm (LAMN: 13 cases, MACA: 3 cases)that were surgically resected in our hospital between January 2010 and July 2021. There were 7 men and 9 women, with a median age of 61 years(27-85 years). The most common chief complaint was abdominal pain(12 patients), while 3 cases were incidental findings following medical checkups for other diseases and without a chief complaint. Colonoscopy was performed for 9 cases. Of these, 5 revealed abnormal findings. The preoperative diagnosis was appendicitis in 7 patients and appendiceal tumor in 8 patients. The surgical procedures were planned for 8 cases and performed as emergencies in 8 cases. The procedures included laparoscopic surgery(n=6)and laparotomy(n=10). The resection range included appendectomy(n=9), partial cecal resection(n=4), and ileocecal resection(n=3). Surgical margins were negative in all cases. Metastases were not observed in patients who underwent lymph node dissections (2 patients with MACA and 1 patient with LAMN). The median follow-up was 17 months(1-43 months). Recurrence including peritoneal pseudomyxoma was not detected in any of the patients.
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Adenocarcinoma Mucinoso , Neoplasias do Apêndice , Neoplasias Peritoneais , Masculino , Humanos , Feminino , Pessoa de Meia-Idade , Neoplasias Peritoneais/secundário , Estudos Retrospectivos , Neoplasias do Apêndice/patologia , Adenocarcinoma Mucinoso/cirurgia , Adenocarcinoma Mucinoso/diagnóstico , Apendicectomia/métodosRESUMO
BACKGROUND: The objective of this study was to develop a method to evaluate the effects of an aortic dissection on hemodynamic parameters by conducting a comparison with that of a healthy (nondissected) aorta. Open-source software will be implemented, no proprietary software/application will be used to ensure accessorily and repeatability, in all the data analysis and processing. Computed tomography (CT) images of aortic dissection are used for the model geometry segmentation. Boundary conditions from literature are implemented to computational fluid dynamics (CFD) to analyze the hemodynamic parameters. METHODS: A numerical simulation model was created by obtaining accurate 3-dimensional geometries of aortae from CT images. In this study, CT images of 8 cases of aortic dissection (Stanford type-A and type-B) and 3 cases of healthy aortae are used for the actual aorta model geometry segmentation. These models were exported into an open-source CFD software, OpenFOAM, where a simplified pulsating flow was simulated by controlling the flow pressure. Ten cycles of the pulsatile flow (0.50 sec/cycle) conditions, totaling 5 sec, were calculated. RESULTS: The pressure distribution, wall shear stress (WSS) and flow velocity streamlines within the aorta and the false lumen were calculated and visualized. It was found that the flow velocity and WSS had a high correlation in high WSS areas of the intermittent layer between the true and false lumen. Most of the Stanford type-A dissections in the study showed high WSS, over 38 Pa, at the systole phase. This indicates that the arterial walls in type-A dissections are more likely to be damaged with pulsatile flow. CONCLUSIONS: Using CFD to estimate localized high WSS areas may help in deciding to treat a type-A or B dissection with a stent graft to prevent a potential rupture.
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Aorta/fisiopatologia , Aneurisma Aórtico/fisiopatologia , Dissecção Aórtica/fisiopatologia , Hemodinâmica , Modelos Cardiovasculares , Modelagem Computacional Específica para o Paciente , Dissecção Aórtica/diagnóstico por imagem , Dissecção Aórtica/terapia , Aorta/diagnóstico por imagem , Aneurisma Aórtico/diagnóstico por imagem , Aneurisma Aórtico/terapia , Aortografia , Estudos de Casos e Controles , Tomada de Decisão Clínica , Angiografia por Tomografia Computadorizada , Humanos , Hidrodinâmica , Análise Numérica Assistida por Computador , PrognósticoRESUMO
Although the suppression of physiological responses to the balance between nociception caused by surgical trauma and anti-nociception due to anesthesia during total shoulder arthroplasty (TSA) is relevant for better perioperative managements, quantitative evaluations of the effects of ultrasound-guided interscalene brachial plexus block (ISB) on physiological responses have not been performed. Physiological responses were assessed using the nociceptive response (NR) index. In this multi-institutional observational study, associations between ISB and NR values were examined among inpatients undergoing TSA under general anesthesia between March 2019 and January 2021. The effects of ISB on acute postoperative pain and major complications within 30 days after surgery were also examined. NR values after skin incision clearly showed significant suppressions of physiological responses in patients undergoing TSA with ISB (n = 60), compared to those without ISB (n = 24). Acute postoperative pain on the day of surgery was also significantly less in patients with ISB than in those without ISB. Postoperative complications, classified by Clavien-Dindo grades, showed no significant differences between patients with and without ISB. A propensity score-matched sensitivity analysis confirmed the same results in patients with (n = 21) and without ISB (n = 21). In conclusion, suppression of physiological responses to the balance between nociception and anti-nociception by ISB can be quantitatively evaluated by NR index during TSA.
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Artroplastia do Ombro , Bloqueio do Plexo Braquial , Humanos , Anestesia Geral/efeitos adversos , Anestésicos Locais , Artroplastia do Ombro/efeitos adversos , Artroscopia , Bloqueio do Plexo Braquial/métodos , Pacientes Internados , Nociceptividade , Dor Pós-Operatória/etiologia , Ombro/cirurgiaRESUMO
Although diaryl tellurides are parent organotellurium compounds, their synthesis methods, especially for unsymmetrical ones, are limited. This may be due to the instability of diaryl tellurides and their synthesis intermediates under reaction conditions. Radical reactions are known to exhibit excellent functional group selectivity; therefore, we focused on a bimolecular homolytic substitution (SH2) reaction between the aryl radical and diaryl ditelluride. Aryl radicals are generated from arylhydrazines in air and captured by diaryl ditellurides, resulting in a selective formation of unsymmetrical diaryl tellurides with high yields. The electronic effects of the substituents on both arylhydrazines and diaryl ditellurides on the SH2 reaction of tellurium are also discussed in detail.
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An 83âyearâold woman received trastuzumab plus anastrozole as firstâline chemotherapy for inflammatory breast cancer in her left breast. Following the treatment, the induration and redness in her breast gradually improved; however, 2 days after receiving the 5th course of chemotherapy, she developed dyspnea and was referred to the emergency room. Her SpO2 was 88%; her KLâ6 level had increased to 2,613 U/mL; and a chest CT scan showed groundâglass opacity in the bilateral lung fields, yielding a diagnosis of interstitial pneumonia requiring steroid pulse therapy. The dyspnea improved immediately after steroid administration, and the patient was discharged 20 days after hospitalization. Thereafter, the steroid dosage was gradually lowered to 5 mg/day. We discontinued steroid therapy after a chest CT confirmed the reduction of groundâglass opacity. However, she was later readmitted for interstitial pneumonia for which she was readministered steroid pulse therapy. Trastuzumabâinduced interstitial pneumonia is rare, but we must be aware of the possibility that patients may develop severe pulmonary disorders or experience cardiotoxic effects.
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Neoplasias Inflamatórias Mamárias , Doenças Pulmonares Intersticiais , Idoso de 80 Anos ou mais , Anastrozol , Feminino , Humanos , Doenças Pulmonares Intersticiais/induzido quimicamente , Doenças Pulmonares Intersticiais/tratamento farmacológico , Trastuzumab/efeitos adversosRESUMO
This study describes the syntheses of 2,3-bis(selanyl)quinoxalines via the photoinduced cyclizations of o-diisocyanoarenes with diaryl or dialkyl diselenides, in addition to providing a detailed discussion of the corresponding mechanism and revealing that the developed procedure can also be applied to prepare 2-thiolated quinoxaline derivatives from o-diisocyanoarenes and thiols. The developed technique does not need the use of additives or metal catalysts and features the advantages of a high conversion, a broad substrate scope, and mild reaction conditions, thereby rendering it a valuable addition to the quinoxaline synthesis toolbox.
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HIV infection, in particular in patients with developing AIDS, carries a risk of causing toxoplasmosis with encephalitis, which is mostly caused by a form (bradyzoite) of the protozoan parasite Toxoplasma gondii. HIV/AIDS in Japan has been recognized as a serious health issue in recent years. In this study, to elucidate T. gondii seroprevalence in HIV-positive patients in Japan and associated characteristics with Toxoplasma parasite infection, the titer of T. gondii IgG (Tg-IgG) was measured in 399 HIV-positive patients who visited a hospital in Tokyo, Japan, between 2015 and 2017. A questionnaire survey was also conducted to investigate associations between lifestyle and customs. As a result, the overall prevalence of Tg-IgG-positive serum was 8.27% (33 cases of 399). All the cases positive for Tg-IgG were confirmed using the Sabin-Feldman dye test; the titers between each examination correlated robustly (p < 0.001, r = 0.6). A correlation between Toxoplasma infection rate and age was determined (p < 0.001), whereas there was no significant correlation with lifestyle customs such as consuming undercooked meat or owning a cat. An association between Toxoplasma infection and experience of dwelling in the Hokkaido area, the northern part of Japan, was observed (p = 0.001). These results suggested that the proportion of those who were previously exposed to Toxoplasma parasites in the HIV-positive population has been maintained at a similar level as that of the HIV-negative population in Japan, providing clear information about the potential risk of toxoplasmic encephalitis.
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Infecções por HIV , Toxoplasmose , Adulto , Idoso , Anticorpos Antiprotozoários/sangue , Estudos Transversais , Feminino , Infecções por HIV/complicações , Infecções por HIV/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Estudos Soroepidemiológicos , Tóquio/epidemiologia , Toxoplasma/imunologia , Toxoplasmose/complicações , Toxoplasmose/epidemiologia , Toxoplasmose/imunologia , Adulto JovemRESUMO
Liver herniation is rare and sometimes difficult to differentiate from pleural or diaphragmatic tumor. A 64-year-old woman was admitted due to a mass-like shadow in the right lower lung field. Computed tomography, coronal view, showed a well-defined mass forming an acute angle with the right diaphragm, mimicking pleural tumor. Video-assisted thoracic surgery was performed, revealing herniated liver through one of the multiple diaphragmatic defects, which was repositioned into the abdominal cavity, and the diaphragmatic defect was repaired. The patient recovered well and was discharged on postoperative day 5.
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Hérnia Diafragmática , Neoplasias Pleurais , Diafragma , Feminino , Humanos , Fígado , Pessoa de Meia-Idade , Tomografia Computadorizada por Raios XRESUMO
BACKGROUND: Left hepatic trisectionectomy is a challenging procedure. For an anatomically correct resection, it is necessary to have understanding of the right intersectional plane; however, little is known on this issue. The purpose of this study was to investigate the 3D anatomy of the right intersectional plane and to enable safe and precise left trisectionectomy. METHODS: A virtual left trisectionectomy was performed using 3D-processing software, in patients who underwent computed tomography. The reconstructed images were reviewed, and attention was paid to the extent of the right hepatic vein (RHV) exposure on the transected plane and the type of the inferior right hepatic vein (IRHV). RESULTS: Of the 200 study patients, 109 (54.5 %) patients showed complete exposure of the RHV on the transected plane, whereas the remaining 91 exhibited partial exposure. In the 109 patients with complete exposure, 58 (53.2 %) patients had no IRHV and the remaining 51 had a small IRHV. None of the patients had a large IRHV. In contrast, of the 91 patients with partial exposure, only 10 (11.0 %) patients had no IRHV, 35 (38.5 %) had a small IRHV, and 46 (50.5 %) patients had a large IRHV. The incidence of IRHV types was significantly different between the two groups (P < 0.001). CONCLUSIONS: The RHV does not always run along the right intersectional plane, i.e., the vein is not always fully exposed on the transected plane even after anatomically correct left trisectionectomy. The extent of the RHV exposure is closely related to the type of the IRHV.
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Hepatectomia/métodos , Veias Hepáticas/anatomia & histologia , Veias Hepáticas/cirurgia , Fígado/irrigação sanguínea , Fígado/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Simulação por Computador , Feminino , Veias Hepáticas/diagnóstico por imagem , Humanos , Imageamento Tridimensional , Fígado/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Tomografia Computadorizada Multidetectores , Adulto JovemRESUMO
We report two cases of Paragonimus westermani infection in a Chinese family in Japan. A 41-year-old husband and his 40-year-old wife were infected with P. westermani after consuming a homemade Chinese traditional "Drunken Crab." They were a family with two children who had lived in Japan for 19 years. The crabs were Eriocheir japonica sent from the Kyusyu area that they had pickled at home with soy sauce and Chinese liquor for 5 days. Their children did not eat any of the crabs. One month after consuming the crabs, the husband came to our outpatient clinic with fever and chest pain and his wife also presented with a persistent cough. Both patients had a high peripheral blood eosinophil count (husband:18,900/µL, wife:10,600/µL) with pulmonary effusion, nodular shadow, and pneumothorax in chest X-ray findings. Paragonimiasis was suspected from the episode of consuming the crabs. No parasite eggs were seen in their sputum and stool samples. A multiple-dot ELISA was performed with the sera to screen for parasitic infections, but the result was only weakly positive for P. westermani antigen in the husband and a slightly positive reaction in the wife. The diagnosis of P. westermani was achieved with the double diffusion Ouchterlony method using P. westermani antigen and P. miyazakii antigen. Praziquantel administration for three days improved the symptoms in both patients. The Ouchterlony method proved useful in diagnosing paragonimiasis in these cases.
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Imunodifusão , Paragonimíase/diagnóstico , Adulto , China/etnologia , Família , Feminino , Humanos , Japão , MasculinoRESUMO
Adult mammals are known for their poor ability to regenerate tissues, including tendons. On the other hand, urodeles have become an important model in regenerative studies for their remarkable ability to regenerate various body parts and organs throughout life, such as limbs, retinas, or even the brain. However, little is known about their capacity to regenerate injured tendons. If newts can also repair tendons without scar formation, they may be a suitable animal model for tendon regeneration studies in other adult vertebrates. Therefore, the present study used Iberian ribbed newts to characterize mechanical and structural regeneration of tendons following transection, using tensile tests and multiphoton microscopy. A digital flexor tendon in a hindlimb was transected either partially or completely, and regenerated tendon was examined 6 and 12 weeks after the operation. Tensile strength of regenerated tendons was significantly less than normal at 6 weeks, but was remarkably recovered at 12 weeks, reaching levels comparable to those of uninjured tendons. On the other hand, mouse tendons demonstrated poor recovery of strength even after 12 weeks. Multiphoton microscopy revealed that tendon-like collagenous tissue bridges residual tendon stubs in newts, but disorganized scar-like tissue filled the injured location in mice. These findings highlight the remarkable capacity of newts to recover from tendon injury and confirm the utility of newts as a model to study tendon regeneration.
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Cicatriz , Tendões , Animais , Camundongos , Cicatriz/patologia , Tendões/patologia , Regeneração , Modelos Animais de Doenças , Salamandridae , Fenômenos Biomecânicos , MamíferosRESUMO
BACKGROUND: Excess surgical stress responses, caused by heightened nociception, can lead to elevated levels of postoperative inflammation, resulting in an increased incidence of complications after surgery. We hypothesized that utilizing nociception monitor-guided multimodal general anesthesia would exert effects on postoperative outcomes (e.g., serum concentrations of C-reactive protein (CRP) after surgery, postoperative complications). METHODS: This single-center, double-blinded, randomized trial enrolled ASA class I/II adult patients with normal preoperative CRP levels, scheduled for laparoscopic bowel surgery. Patients were randomized to receive either standard care (control group) or nociception monitor-guided multimodal general anesthesia using the nociceptive response (NR) index (NR group), where NR index was kept below 0.85 as possible. The co-primary endpoint was serum concentrations of CRP after surgery or rates of 30-day postoperative complications (defined as Clavien-Dindo grades ≥ II). MAIN RESULTS: One hundred and four patients (control group, n = 52; NR group, n = 52) were enrolled for analysis. The serum CRP level on postoperative day (POD) 1 was significantly lower in the NR group (2.70 mg·dL-1 [95% confidence interval (CI), 2.19-3.20]) than in the control group (3.66 mg·dL-1 [95% CI, 2.98-4.34], p = 0.024). The postoperative complication rate was also significantly lower in the NR group (11.5% [95% CI, 5.4-23.0]) than in the control group (38.5% [95% CI, 26.5-52.0], p = 0.002). CONCLUSIONS: Nociception monitor-guided multimodal general anesthesia, which suppressed intraoperative nociception, mitigated serum concentrations of CRP level, and decreased postoperative complications after laparoscopic bowel surgery.