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Objective To investigate the clinical efficacy of esmolol combined with atorvastatin on se-vere sepsis complicated with cardiac insufficiency.Methods This study was a prospective,double-blind,ran-domized controlled clinical trial.A total of 153 patients with severe sepsis complicated with cardiac insufficien-cy admitted to this hospital from January 2021 to December 2022 were selected and divided into groups A,B,and C by random number table method,with 51 cases in each.Patients in group A were given routine symp-tomatic supportive treatment after admission.On this basis,patients in group B and group C were given esmo-lol,esmolol+atorvastatin,respectively.The hemodynamic indexes,serological indexes and clinical prognosis of the three groups before and after intervention were compared.Results There was no significant difference in baseline data,and hemodynamic and serological indexes of three groups before intervention(P>0.05).Compared with before intervention,after five days of intervention,heart rate,systemic vascular resistance in-dex(SVRI),blood levels of creatine kinase-MB(CK-MB),cardiac troponin Ⅰ(cTn Ⅰ),tumor necrosis factor-α(TNF-α),interleukin-6(IL-6)and high sensitive C-reactive protein(hs-CRP)in three groups were de-creased,while the values of cardiac index(CI)were increased,and the differences were statistically significant(P<0.05).After five days of intervention,the heart rate,SVRI,blood levels of CK-MB,cTn Ⅰ,TNF-α,IL-6,and hs-CRP in group C were lower than those in group A and group B,and the levels in group B were lower than those in group A;the value of CI in group C was higher than that in group A and group B,and group B was higher than that in group A,the differences were statistically significant(P<0.05).After intervention,the length of stay in intensive care unit(ICU)in group C was the shortest,and that in group B was shorter than that in group A,the difference was statistically significant(P<0.05).There was no significant difference in 28 d mortality among the three groups(P>0.05).Conclusion Esmolol combined with atorvastatin can signif-icantly inhibit the inflammatory response in patients with severe sepsis complicated with cardiac insufficiency,relieve myocardial injury and promote rehabilitation,and the therapeutic effect is better than esmolol alone.
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Introduction: Laryngoscopy and endotracheal intubation lead to a strong sympathetic response, this study was done to compare clonidine, esmolol, and lignocaine as an adjuvant to fentanyl to attenuate the pressor response to laryngoscopy during endotracheal intubation. To compare clonidine, esmolol, and lignocaine as an a Objectives: djuvant to fentanyl to attenuate the pressor response to laryngoscopy during endotracheal intubation. A Randomized prospective study includi Material and Methods: ng 150 normotensive patients undergoing elective surgical procedures were included. Three groups were divided according to drug they received. After 3 minutes of drug , laryngoscopy and endotracheal intubation were done. Vitals (HR,SBP,DBP and MAP) were noted before laryngoscopy and endotracheal intubation and 1,2,4,6 and 8 minute after Laryngoscopy and endotracheal intubation and anaesthesia was continued with O2+N2O+Sevoflurane. Results: Rise in heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), and mean arterial pressure (MAP) at one minute following intubation in all three groups of drugs (p<0.001). SBP both esmolol and clonidine reached equal to baseline in 4 mins with their respective p-value as 0.293 and 0.097 and group lignocaine reached equal to baseline in 6 mins. DBP of group esmolol reached baseline at 4 mins (p-value- 0.090), group clonidine reached baseline in 6 mins. And group lignocaine does not reach baseline even after 8 mins. MAP in esmolol group reached to baseline in 4 mins, group clonidine reached to baseline in 6 mins and group lignocaine does not reach to baseline even after 8 mins. Conclusion: Considering all parameters, it was concluded that esmolol with fentanyl showed better response on all parameters.
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Abstract Background Few trials have examined the efficacy of esmolol to attenuate hemodynamic and respiratory responses during extubation. However, the most appropriate dose of esmolol and an optimal protocol for administering this beta-blocker are uncertain. Methods Ninety patients ASA physical status I, II, and III (aged 18-60 years) scheduled to procedures with general anesthesia and tracheal extubation were selected. Patients were randomized into esmolol and placebo group to evaluate the efficacy and safety of a single bolus dose of esmolol (2 mg.kg-1) on cardiorespiratory responses during the peri-extubation period. The primary outcome was the rate of tachycardia during extubation. Results The rate of tachycardia was significantly lower in esmolol-treated patients compared to placebo-treated patients (2.2% vs. 48.9%, relative risk (RR): 0.04, 95% confidence interval (95% CI) = 0.01 to 0.32, p= 0.002). The rate of hypertension was also significantly lower in the esmolol group (4.4% vs. 31.1%, RR: 0.14, 95% CI 0.03 to 0.6, p= 0.004). Esmolol-treated patients were associated with higher extubation quality compared to patients who received placebo (p< 0.001), with an approximately two-fold increase in the rate of patients without cough (91.1%) in the esmolol group compared to the placebo group (46.7%). The rate of bucking was approximately 5-fold lower in the esmolol group (8.9% vs. 44.5%, respectively, RR: 0.20 (95% CI, 0.1 to 0.5, p= 0.002, with an NNT of 2.8). Conclusion A single bolus dose of esmolol is an effective and safe therapeutic strategy to attenuate cardiorespiratory responses during the peri-extubation period.
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Humanos , Propanolaminas/uso terapêutico , Propanolaminas/farmacologia , Hipertensão/etnologia , Hipertensão/tratamento farmacológico , Taquicardia/etnologia , Taquicardia/prevenção & controle , Taquicardia/tratamento farmacológico , Antagonistas Adrenérgicos beta/uso terapêutico , Antagonistas Adrenérgicos beta/farmacologia , Extubação/efeitos adversos , Frequência Cardíaca , Anestesia Geral/efeitos adversosRESUMO
Background: Endotracheal intubation is gold standard of general anaesthesia. But it hasdisadvantages of initiation of stress response to laryngoscopy and intubation. To alleviate itwe have used Dexmedetomidine & Esmolol.MethodsGroup E - Inj. Esmolol (1.0 mg/kg) in 10 ml normal saline two minutes before inductionGroup D – Inj. Dexmedetomidine (1μg/kg) in 10 ml normal saline over 10 minutes prior toinduction.Results and conclusion: both the drugs effectively supress stress response but Dexmedetomidine is better than Esmolol
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Background: Functional endoscopic sinus surgery is a minimally invasive surgical procedure performed under controlled hypotensive anesthesia. This technique has the advantage of minimal blood loss and visualizes surgical field distinctly. Aim and Objectives: To compare the efficacy of Dexmedetomidine and Esmolol for the induction of controlled hypotension in functional endoscopic sinus surgeries. Materials and Methods: A total of 80 cases with paranasal sinus pathologies posted for functional endoscopic sinus surgeries between 21 and 60 years were recruited. Study participants were randomly divided into two study groups, i.e. Group 1 administered with dexmedetomidine and Group 2 administered with Esmolol. Parameters such as hemodynamics, total intraoperative fentanyl consumption, duration of surgery, and total blood loss were noted. Results: The mean difference of systolic blood pressure, diastolic blood pressure and mean arterial pressure was not statistically significant (P > 0.05). The mean difference of heart rate between two study groups was statistically significant (P < 0.05). The mean duration surgery in Group 1 was 87.9 min and in Group 2 was 89.5 min. The estimated blood loss was 132.2 ml in Group 1 and 134.2 ml in Group 2. No desaturation was observed in the study participants during recovery and the postoperative period. Conclusion: Both dexmedetomidine and esmolol infusion are efficacious and are safe drugs for maintaining controlled hypotension and improve the quality of surgical field. Dexmedetomidine was associated with good postoperative sedation while esmolol associated with early recovery time. Surgeon satisfaction score was similar was similar in both groups.
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Objective:To investigate the protective effect of β- blocker (esmolol) on myocardia and toll-like receptor 4 (TLR4) inflammatory pathway in septic rats.Methods:Sixty male Wistar rats were randomly (random number) divided into the shame group, sepsis group (CLP group), esmolol group (CLP+ES group) and TLR4 inhibitor group (CLP+TAK-242 group) with 15 rats in each group. Cecal exploration was performed in the shame group, and cecal ligation and perforation (CLP) was performed in the CLP group, CLP+ES group and CLP+TAK-242 group. The CLP+ES group received intraperitoneal injection of esmolol diluent 20 mg/kg 12 h after CLP. The CLP+TAK-242 group was given intraperitoneal injection of TAK-242 3 mg/kg at the same time point as above. The shame group and CLP group were given the same amount of normal saline. Rats in all groups were sacrificed 24 h after operation, and the samples were collected and processed. The pathological changes of myocardium were observed by hematoxylin - eosin staining. The expression of TLR4, myeloid differentiation protein 88 (MyD88) and nuclear factor -κB (NF-κB) in myocardial tissue were observed by immunohistochemistry. Masson staining was used to observe the expression of fibers and inflammatory factors in myocardial tissue. The protein expressions of TLR4, MyD88, NF-κB and aspartic acid specific cysteine protease 1 (caspase-1) were detected by Western blot. Serum levels of cardiac troponin I (cTn-I), tumor necrosis factor α (TNF-α), interleukin-6 (IL-6) and interleukin-1β (IL-1β) were detected by enzyme-linked immunosorbent assay (ELISA).Results:Compared with the shame group, myocardial injury, fibrosis and inflammatory cell infiltration were significantly aggravated in the CLP group, and the levels of myocardial injury index cTn-I and inflammatory mediators TNF-α, IL-6 and IL-1β were significantly increased [(8.70±0.22) vs. (4.41±0.31), (445.57±9.13) vs. (219.60±5.52), (165.55±2.18) vs. (93.47±3.37), (124.12±2.59) vs. (67.63±6.04),all P<0.05]. Compared with the CLP group, myocardial injury was significantly reduced in the CLP+ES group and CLP+TAK-242 group, and the levels of inflammatory transmitters were significantly reduced [(5.38±0.18) and (5.37±0.13) vs. (8.70±0.22), (322.73±7.63) and (300.58±17.47) vs. (445.57±9.13), (121.28±5.44) and (120.30±4.95) vs. (165.55±2.18), (102.60±4.09) and (105.08±7.21) vs. (124.12±2.59), all P<0.05]. Western blot analysis showed that the protein expression levels of TLR4, MyD88, NF-κB and caspase-1 in the CLP group were significantly higher than those in the shame group [(1.79±0.15) vs. (1.15±0.04), (4.70±0.30) vs. (3.87±0.10), (0.35±0.04) vs. (0.18±0.02), (2.27±0.29) vs. (1.15±0.07), all P<0.05], while the protein expression levels in the CLP+ES group and CLP+TAK-242 group were significantly lower than those in the CLP group [(1.31±0.16) and (1.18±0.14) vs. (1.79±0.15), (1.50±0.16) and (1.46±0.19) vs. (2.27±0.29), (0.27±0.02) and (0.24±0.01) vs. (0.35±0.04), (1.50±0.16) and (1.46±0.19) vs. (2.27±0.29), all P<0.05]. Conclusions:β-blocker can reduce myocardial injury and inhibit the expression of inflammatory mediators in septic rats by blocking the inflammatory response mediated by TLR4 signaling pathway.
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Abstract Introduction Controlled hypotension is a reversible procedure in which the patient's baseline mean arterial blood pressure is reduced by 30% and sustained at 60-70 mmHg during the procedure. It decreases blood loss and provides clear surgical field during the procedures. Objectives The purpose of this study was to compare the efficacy of controlled hypotension agents esmolol, remifentanil, and nitroglycerin in functional endoscopic sinus surgery, in terms of hemodynamic changes and impact on the surgical efficiency. Methods The research was carried out as a cohort study. Patients who underwent functional endoscopic sinus surgery were randomized into 3 groups. Controlled hypotension was achieved with remifentanil (Group R), esmolol (Group E) and nitroglycerin (Group N). The efficacy of the drugs was tested by comparing the length of time with the targeted mean arterial pressure, the amount of anesthetics used, surgical field bleeding score and surgeon's satisfaction. Results Between May to December 2015, 60 patients were included and randomized equally into 3 different study groups. The median of the length of time with the targeted mean arterial pressure was shorter in the Group R when compared with Group E (p = 0.01) and Group N (p = 0.14). The amount of volatile anesthetics used was 25.0 mL (15-51), 43.0 mL (21-105) and 40.0 mL (26-97) in Groups R, E and N, respectively (p < 0.001). While there was more bleeding with nitroglycerin, surgical field bleeding scores were lower in Group R when compared with esmolol (p = 0.001) and nitroglycerin (p < 0.001). The analysis of surgeon's satisfaction scores concluded that surgeons were more satisfied with the group R (100%), when compared with group E (60%) and group N (30%) (p < 0.001). Conclusion Less volatile agent, short time to achieve controlled hypotension, stable blood pressure, lower surgical field bleeding scores and larger length of time with the targeted mean arterial pressure were found as the advantages of Remifentanil. Less costly, efficiency of achieving the targeted median arterial pressure and less postoperative complications were the advantages of nitroglycerin. In functional endoscopic sinus surgery procedures, appropriate controlled hypotensive agents should be selected according to the patients' characteristics and advantages/disadvantages of the drugs.
Resumo Introdução Hipotensão controlada é um procedimento reversível no qual a pressão arterial média basal do paciente é reduzida em 30% e mantida em 60-70 mmHg durante o procedimento. Isso diminui a perda de sangue e propicia um campo cirúrgico limpo durante os procedimentos. Objetivo Comparar agentes usados para hipotensão controlada: esmolol, remifentanil e nitroglicerina em cirurgia sinusal endoscópica funcional, em termos de alterações hemodinâmicas e impactos na eficácia cirúrgica. Método O estudo foi feito como de coorte. Pacientes submetidos à cirurgia sinusal endoscópica funcional foram randomizados em 3 grupos. A hipotensão controlada foi feita com remifentanil (Grupo R), esmolol (Grupo E) e nitroglicerina (Grupo R). A eficácia dos medicamentos foi testada com a comparação do período de tempo com a pressão arterial média desejada, a quantidade de anestésicos usados, o escore de sangramento no campo cirúrgico e a satisfação do cirurgião. Resultados Entre maio e dezembro de 2015, 60 pacientes foram incluídos e randomizados igualmente nos três grupos de estudo. A mediana do período com a pressão arterial desejada foi menor no Grupo R quando comparado ao Grupo E (p = 0,01) e Grupo N (p = 0,14). A quantidade de anestésicos voláteis usados foi de 25,0 mL (15 ± 51), 43,0 mL (21 ± 105) e 40,0 mL (26 ± 97) nos Grupos R, E e N, respectivamente (p < 0,001). Houve mais sangramento com nitroglicerina e escores de sangramento no campo cirúrgico foram menores no Grupo R quando comparados com esmolol (p = 0,001) e nitroglicerina (p < 0,001). A análise dos escores da satisfação do cirurgião concluiu que os cirurgiões estavam mais satisfeitos com o grupo R (100%) quando comparados ao grupo E (60%) e o grupo N (30%) (p < 0,001). Conclusão Agente menos volátil, pouco tempo para obter a hipotensão controlada, pressão arterial estável, menor escore de sangramento no campo cirúrgico e período de pressão arterial desejada curto foram considerados como vantagens do remifentanil. Menor custo, eficácia de obtenção da pressão arterial média desejada e menos complicações pós-operatórias foram as vantagens da nitroglicerina. Nos procedimentos de cirurgia sinusal endoscópica funcional, os agentes apropriados para obtenção de hipotensão controlada devem ser selecionados de acordo com as características dos pacientes e as vantagens/desvantagens dos fármacos.
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Humanos , Nitroglicerina , Hipotensão Controlada , Propanolaminas , Estudos de Coortes , RemifentanilRESUMO
Objective:To investigate the clinical effect of esmolol on young and middle-aged patients with acute anterior myocardial infarction.Methods:Patients with acute anterior myocardial infarction from January 2008 to August 2020 were collected to obtain the basic information and clinical indicators. According to the clinical medication, the patients were divided into metoprolol group and esmolol group. The metoprolol group ( n=189) received routine esmolol, and the esmolol group ( n=104) received esmolol, intravenous injection, and then metoprolol sustained-release tablets. The clinical indexes, Gensini score, Killip grade, esmolol status and cardiac function after 7 d and 3 months of treatment were compared between the two groups. Results:Compared with the metoprolol group, the triglyceride (TG) was significantly higher, and the alanine aminotransferase (ALT) and aspartate aminotransferase (AST were significantly lower in the esmolol group (all P<0.05). The C-reactive protein (CRP), N-terminal pro-brain natriuretic peptide (NT-proBNP) and Gensini scores of culprit vessels in the esmolol group were lower than those in the metoprolol group ( P<0.05). There was no significant difference in cardiac function between the two groups within 7 d after treatment ( P>0.05). After 3 months of treatment, the left ventricular ejection fraction (LVEF) was higher and left ventricular end diastolic diameter (LVDD) was lower than those in the metoprolol group ( P<0.05). The number of postperative, ventricular tachycardia, shock and death in the esmolol group were lower than those in the metoprolol group, but the difference was not statistically significant ( P>0.05). Conclusions:Intravenous infusion of esmolol in young and middle-aged patients with acute anterior myocardial infarction can significantly improve the myocardial injury, liver function and cardiac function in prognosis.
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Background: The objective of this study was to compare the efficacy of intravenous dexmedetomidine and esmolol in attenuating the cardiovascular pressor responses to laryngoscopy and endotracheal intubation.Method: Study was done on 60 adults, American society of anesthesiologists (ASA) grade I or II normotensive patients, undergoing elective surgery under general anesthesia and willing to participate. These patients were randomly allocated to either group E (esmolol) or D (dexmedetomidine). Group ‘D’, patients were given intravenous dexmedetomidine infusion 1 mcg/kg over 10 minutes, 3 minutes before start of laryngoscopy. Group ‘E’, patients were given intravenous esmolol 1.5 mg/kg 2 minutes before start of laryngoscopy. All patients were premedicated, induced and intubated using thiopentone and succinyl choline as per the protocol. Heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP) and mean arterial pressure (MAP) were recorded at baseline (taken half an hour prior to anesthesia), before sedation, after induction but before intubation, immediately after endotracheal intubation and thereafter at 1, 2, 3, 4, 5 and 10 minutes.Results: Immediately after intubation, HR was similar in group D and group E, thereafter HR remained higher in group E as compared to group D, and difference was statistically significant. SBP, DBP and MAP recorded was higher in group E as compared to group D, and difference was statistically significant.Conclusion: Authors conclude that intravenous dexmedetomidine 1 ug/kg is better drug to attenuate hemodynamic response to laryngoscopy and intubation as compared to intravenous esmolol 1.5 mg/kg.
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Not many studies have compared more than two drugs in attenuating pressor responses to laryngoscopy and intubation. This study compares four groups of considerable size. The present study compared intravenous esmolol, diltiazem, and lignocaine, for their efficacy to abate pressure response to laryngoscopy and intubation. METHODSThis is a prospective, randomized, double-blinded, controlled clinical study conducted among 220 patients of ASA grade I/II (age 18–60 years), undergoing elective surgical procedure requiring general anaesthesia with endotracheal intubation over a period of 15 months at a tertiary hospital setup. Study subjects were categorised as Groups D, E, L, and N that received diltiazem (0.2 mg/Kg IV), esmolol (2 mg/Kg IV), lignocaine (1.5 mg/Kg IV), and normal saline, respectively; each group had 55 patients. Haemodynamic parameters were recorded at baseline, after drug administration, immediately after intubation, and at 1-, 3-, and 5-minutes after intubation. Data entry and analysis were performed using MS Excel and SPSS-PC-17 version, respectively. One-way ANOVA and the chi-square test were used to evaluate the difference. P < 0.05 was considered significant. RESULTSA maximum increase in haemodynamic parameters occurred immediately after intubation. The increase in heart rate and rate pressure product were significantly lower in Group E (+2.93% & +15.31%), whereas the increase in blood pressure was lower in Group D (8.51%). CONCLUSIONSHaemodynamic stability during laryngoscopy and endotracheal intubation is an integral and essential goal of any anaesthetic management plan and was more effectively maintained with esmolol and diltiazem than with lignocaine.
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The frequent occurrence of cardiovascular responses to laryngoscopy and tracheal intubation has attracted the attention of anaesthesiologists for more than five decades. The reason for this is the occasional report of sudden death immediately after intubation and increasing awareness about the common occurrence of potentially dangerous responses such as tachycardia, hypertension and arrhythmiasWe wanted to study, measure and compare the haemodynamic responses to laryngoscopy and oral endotracheal intubation in healthy normotensive adults with prior administration of injection lignocaine and injection esmolol hydrochloride.METHODS75 patients belonging to ASA 1, ASA 2 status, in the age group of 18-60 years scheduled for elective non-cardiac surgical procedures under general anaesthesia were selected for this prospective randomized controlled study conducted after obtaining institutional approval. They were randomly divided into 3 groups of 50 each. Group C (control group), Group Lignocaine and Esmolol Group. All the patients irrespective of group to which they belonged received tablet diazepam 0.15 mg/Kg the previous night followed by intramuscular Pethidine 1 mg/Kg 1 hour prior to the scheduled surgery.RESULTSIn esmolol group, there has significant attenuation of heart rate, SAP, DAP and mean arterial pressure following laryngoscopy and endotracheal intubation compared to lignocaine group. Lignocaine group has significant attenuation of heart rate, SAP, DAP and mean arterial pressure following laryngoscopy and endotracheal intubation compared to control group.CONCLUSIONSEsmolol hydrochloride given in the dose of 1.5 mg/Kg body weight 3 minutes prior to intubation provided consistent and reliable protection against increase in mean heart rate. SAP, DAP and MAP during laryngoscopy and intubation compared to lignocaine (1.5 mg/Kg).
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Background: Objective is to compare the efficacy of intravenous Esmolol to attenuate the cardiovascular responses to laryngoscopy and endotracheal intubation with control group.Methods: Study was done on 60 adults, ASA grade I or II normotensive patients, undergoing elective surgery under general anaesthesia and willing to participate. These patients where be randomly allocated in to either group C (Control) or E (Esmolol). Group ‘C’ Control group. Group ‘E’, patients were given intravenous Esmolol 1.5 mg/kg 2 minutes before start of laryngoscopy. All patients were premedicated, induced and intubated using Thiopentone and Succinyl Choline as per the protocol. Heart Rate (HR), SBP, DBP and MAP were recorded at baseline (taken half an hour prior to anaesthesia), Before sedation, After induction but before intubation, Immediately after endotracheal intubation and Thereafter at 1, 2, 3, 4, 5 and 10 minutes.Results: Heart rate was lower in Group E as compared to Group C, and there was statistically significant difference immediately after intubation till 4 minutes after intubation. While Blood pressure was lower in Group E as compared to Group C, and there was statistically significant difference only immediately after intubation.Conclusions: In Normotensive patients requiring general anaesthesia with laryngoscopy and intubation, authors conclude that intravenous Esmolol 1.5 mg/kg attenuated Heart rate response but fails to satisfactorily prevent rise in blood pressure.
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Abstract Purpose To evaluate the analgesic effect of esmolol in patients submitted to laparoscopic gastroplasty. Methods Forty patients aged between 18 and 50 years with American Society of Anesthesiologists (ASA) physical status scores of II and III who underwent gastric bypass were allocated to two groups. Group 1 patients received a 0.5-mg/kg bolus of esmolol in 30 mL of saline before induction of anesthesia, followed by an infusion at 15 µg/kg/min until the end of surgery. Group 2 patients received 30 mL of saline as a bolus and then an infusion of saline. Anesthesia included fentanyl (3 µg/kg), propofol (2-4 mg/kg), rocuronium (0.6 mg/kg), and 2% sevoflurane, with remifentanil if necessary. The following parameters were evaluated: pain intensity over 24h, remifentanil consumption, the first analgesic request, morphine consumption, and side effects. Results Pain intensity was lower in the esmolol group except at T0 (after extubation) and 12h postoperatively. Remifentanil supplementation, recovery time, and postoperative morphine supplementation were lower in the esmolol group. No differences in the time to the first analgesic request or side effects were found between the groups. Conclusion Intraoperative esmolol promotes reductions in pain intensity and the need for analgesic supplementation without adverse effects, thus representing an effective drug for multimodal analgesia in gastroplasty.
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Humanos , Masculino , Feminino , Adolescente , Adulto , Adulto Jovem , Medição da Dor , Gastroplastia/efeitos adversos , Laparoscopia/efeitos adversos , Antagonistas de Receptores Adrenérgicos beta 1/uso terapêutico , Dor Pós-Operatória/prevenção & controle , Propanolaminas/uso terapêutico , Gastroplastia/métodos , Método Duplo-Cego , Resultado do Tratamento , Laparoscopia/métodos , Estatísticas não Paramétricas , Náusea e Vômito Pós-Operatórios/prevenção & controle , Analgesia/métodos , Período Intraoperatório , Anestesia/métodos , Anestésicos/uso terapêutico , Pessoa de Meia-IdadeRESUMO
Background: The aim of this study was to compare the effects of dexmedetomidine, esmolol, and combination of both on control of sympathetic response to laryngoscopy and tracheal intubation in coronary artery disease patients. Material and Methods: A prospective, randomized, double-blinded clinical study included 90 patients scheduled for elective coronary artery bypass surgery. Patients were randomly allocated into three groups of 30 each: dexmedetomidine group (Group D) 1 μg/kg, esmolol group (Group E) 2 mg/kg, and group dexmedetomidine with esmolol (Group DE) 0.5 μg/kg of dexmedetomidine with 1 mg/kg of esmolol. Each drug was diluted with 0.9% normal saline to 20 ml volume and infused in 10 min before induction of anesthesia. Hemodynamic changes (heart rate [HR], arterial blood pressure, and pulmonary artery pressure) were compared at various time intervals as follows-baseline, after study drug, after induction, and 1, 3, and 5 min after intubation. Statistical analysis included analysis of variance, Chi-square, and Fisher's exact test. Results: In Group DE, there was no significant increase in HR at all-time intervals, and the HR was stable compared to Group D and Group E. Blood pressure values were comparable in all groups except in Group E at 5 min. The pulmonary arterial pressures were statistically less in DE group except at 3 and 5 min. Conclusions: The combination of dexmedetomidine and esmolol group has beneficial effect on HR and pulmonary arterial pressures but has no additional advantage with respect to arterial blood pressure when compared with dexmedetomidine and esmolol groups in patients undergoing elective coronary artery bypass grafting.
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Introduction: Laryngoscopy and tracheal intubation cause significant changes in the hemodynamics of patients. Manypharmacological methods have been devised to reduce the extent of hemodynamic events. This study compares the efficacyof two such agents, dexmedetomidine and esmolol, for the attenuation of response to extubation.Materials and Methods: This study was carried out on 100 patients aged 18–60 years, belonging to the American Society ofAnesthesiologists Grades I and II, having no major systemic comorbidities, and undergoing abdominal or lower-limb surgeriesunder general anesthesia. They were randomly divided into two groups: Group D (dexmedetomidine) and Group E (esmolol).Pre-operative, intraoperative, and post-operative vitals and side effects were monitored.Results: Both the groups were comparable in terms of demographic variables, physical attributes, and baseline vitalparameters. It was observed that dexmedetomidine is better at controlling heart rate and systolic, diastolic, and mean bloodpressures during extubation than esmolol. There was no significant respiratory depression. No significant side effects wereobserved.Conclusion: Dexmedetomidine is an effective and safe drug to provide stable hemodynamics and protects against the stressresponse to extubation in patients undergoing abdominal and lower-limb surgeries under general anesthesia.
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The present study compares the effects of dexmedetomidine and esmolol on cardiovascular responseoccurring due to laryngoscopy and endotracheal intubation. A randomised controlled study was carried outon 90 healthy adult patients (ASA I and ASA II) under general anaesthesia. Patients were randomlyallocated into two groups i.e group E and group D. Group D received dexmedetomidine 0.6 µg/kg andgroup E received esmolol 1 mg/kg. Heart rate, systolic blood pressure and diastolic blood pressure wererecorded at baseline, at induction and at 1, 3, 5 and 10 minutes after intubation. This study showed thatdexmedetomidine (0.6 µg/kg) was more effective than esmolol (1mg/kg) for attenuating the cardiovascularresponse to laryngoscopy and intubation
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Aim of the Study:To compare efficacy of Esmolol and Fentanyl in attenuation of hemodynamic response during laryngoscopy and endotracheal intubation.Materials and Methods:50 adult patients were randomly allocated into two Groups, Group E received 0.2mg/kg body weight of iv Esmolol and Group F received 2μg/kg iv Fentanyl, 5 minutes before intubation. Results and Observations:Bolus dose of Esmolol 0.2 mg/kg and Fentanyl 2μg/kg administered 5 minutes before laryngoscopy and endotracheal intubation can effectively reduce the hemodynamic response associated with it. Esmolol and Fentanyl both can provide effective and reliable protection against such cardiovascular responses but cannot abolish it. Observed variance in heart rate, systolic pressure, diastolic pressure and mean arterial pressure during induction, intubation and 1,5,10 min post intubation are comparable across both the groups.Conclusion:Esmolol and Fentanyl both can provide effective and definitive protection against hemodynamic response associated with laryngoscopy and endotracheal intubation when administered 5 minutes before laryngoscopy.
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Background: Although, the concept of laparoscopic surgeries has revolutionised the surgical practice and has markedly reduced the incidence of complications especially postoperative pain. However, the menace of postoperative pain still remains challenge, especially in first 24 hours. The present study was conducted to comparatively analyse the postoperative pain and sedation using intravenous dexmedetomidine and intravenous esmolol during laparoscopic cholecystectomy.Methods: Study was conducted on 90 adult patients aged 18-60 years of ASA grade I or II of both genders, scheduled for laparoscopic cholecystectomy under general anaesthesia. Patients were randomized into three groups of 30 patients each. Patients of group A received esmolol infusion (loading: 1 mg/kg and maintenance: 5-15 µg/kg/min), patients of group B received dexmedetomidine infusion (loading: 0.7 µg/kg and maintenance: 0.4 µg/kg/hour) and group C (control group) received normal saline infusion. During the post-operative period of 24 hours, patient were monitored for sedation using Ramsay sedation score like pain, using visual analogue score (VAS), incidence of post-operative nausea and vomiting and use of any drug for pain, vomiting and any other side effect.Results: Frequency of pain was highest in group C at all post periods, followed by group A and was least in group B. The mean sedation score of group B was comparatively higher as compared to both group C and group A.Conclusions: The inference authors drew was that dexmedetomidine is better analgesic with aurousable sedation.
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Introduction: Laryngoscopy and tracheal intubation provokesa transient and marked sympathetic response that manifests asan increase in BP and HR, with the potential for developmentof arrhythmias. Study aimed to compare the efficacy ofintravenous Dexmedetomidine and Esmolol in attenuating thecardiovascular stress responses accompanying laryngoscopyand endotracheal intubation in well-controlled hypertensivepatients.Material and Methods: 60 hypertensive patients undergoingelective non cardiac surgery were included in the study.Patients were divided into 2 groups, Group D receivedDexmedetomidine 1µg/kg and Group E received esmolol 1.5mg/kg. HR, SAP, DAP, MAP were recorded.Results: There is statistical significant lower HR, SAP,DAP and MAP in group D compared to group E at T4 to T7.Intragroup analysis showed there is no statistically significantchange of HR, SAP, DAP and MAP compared to baseline inGroup D and returns to baseline at 10 minutes. Intragroupanalysis showed there is statistically significant (Higher)change of HR, SAP, DAP and MAP compared to baseline inGroup E at T5 to T8 and returns to baseline at 15 minutes.Conclusion: In controlled hypertensive patients,administration of dexmedetomidine infusion before inductionof anaesthesia blunts the haemodynamic response tolaryngoscopy and endotracheal intubation.
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Backgroundand Aims: Controlled hypotension has been used to reduce bleeding, the need for blood transfusions and provide a satisfactory bloodless surgical field. Esmolol, a short-acting cardioselective beta-blocker and dexmedetomidine, a central ?-2 adrenergic agonist both cause controlled hypotension. The aim was to study the effect of dexmedetomidine and compare it to esmolol for controlled hypotension, surgical field, dose requirement of induction agent, requirement of inhalational agent, and muscle relaxant in middle ear surgeries. Method: This study is a prospective, open-labeled, and single-center study. 100 patients of American Society of Anesthesiologists physical Status I and IIscheduled for middle ear surgeries lasting for 2–3 hunder general anesthesiawere included. Patients were divided into two groups of 50 each by computer-generated random numbers.Group E (n=50) patients esmolol infusion and Group D patients received dexmedetomidine infusion. Results:The two groups were comparable in terms ofhemodynamic parameters and surgical field assessment. The thiopentone dose requirement was 494 ± 12.93 mginGroup E and 354.50 ± 17.26 mg in Group D (P-0.022). The mean isoflurane concentration used in GroupsE andD was 45.30 ± 5.85 mland 13.79 ± 4.51 ml, respectively (P-0.002).The requirement of vecuronium was 11.19 ± 0.71mg in Group E and 4.58 ± 0.46 mg in Group D (P-0.009). Conclusion: The drugs provide controlled hypotension, good surgical field and reduce pressor response equally. In addition, dexmedetomidine reduces the dose requirement of induction agent, inhalational agent, and skeletal muscle relaxant.