Single-bolus dexmedetomidine in prevention of emergence delirium in pediatric ophthalmic surgeries: A randomized controlled trial

Purpose: Emergency delirium (ED), a common postoperative neurologic complication, causes behavioral disturbances leading to self?traumas and also has long?term adverse effects in children. Our aim was to investigate the efficacy of a single?bolus dose of dexmedetomidine in reducing the incidence of ED. Additionally, pain relief, number of patients who needed rescue analgesia, hemodynamic parameters, and adverse events were assessed. Methods: One hundred and one patients were randomly allocated into two groups: 50 patients received 15 mL of dexmedetomidine 0.4 ?g/kg (group D) and 51 patients received volume?matched normal saline (group C). Hemodynamic parameters such as heart rate (HR), systolic blood pressure (SBP), and diastolic blood pressure (DBP) were monitored regularly throughout the procedure. ED was assessed with Pediatric Anesthesia Emergence Delirium Scale (PAEDS), and pain was measured using the modified Objective Pain Score (MOPS). Results: The incidences of ED and pain were higher in group C than group D (P < 0.0001 and P < 0.0001, respectively). Group D showed significant decrease in MOPS and PAEDS values at 5, 10, 15, and 20 min (P < 0.05), HR at 5 min (P < 0.0243), and SBP at 15 min (P < 0.0127). There was no significant difference in DBP between the two groups at any time point. The mean blood pressure (MBP) at 10 min was significantly less in group D than group C (P < 0.001). Conclusion: Dexmedetomidine 0.4 ?g/kg as a single bolus over 10 min immediately after intubation is effective for the prevention of ED and significantly reduces the need of rescue analgesia without compromising the hemodynamic parameters in children undergoing ophthalmic surgery.

Efficacy of a single dose of esmolol to prevent extubation-related complications during emergence from anesthesia: a randomized, double-blind, placebo-controlled trial

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.

Exploratory study of tracheal extubation in operating room after single-lung transplantation / 器官移植

Objective To evaluate the feasibility and safety of tracheal extubation in operating room for patients with end-stage chronic obstructive pulmonary disease (COPD) after single-lung transplantation. Methods Clinical data of 57 recipients who underwent single-lung transplantation due to end-stage COPD were retrospectively analyzed. According to the evaluation indexes of tracheal extubation in operating room established by our hospital, 17 recipients eligible for tracheal extubation in operating room were assigned into the operating room extubation group (OR extubation group) and 40 recipients receiving tracheal extubation in intensive care unit (ICU) were allocated in the ICU extubation group. The evaluation results of intraoperative tracheal extubation and postoperative recovery were compared between two groups. Results Compared with the ICU extubation group, recipients in the OR extubation group had higher oxygenation index, lower arterial partial pressure of carbon dioxide (PaCO2), lower blood lactic acid level, less fluctuation range of blood pressure and fewer cases receiving extracorporeal membrane oxygenation (ECMO) during operation (all P < 0.05). Two recipients in the OR extubation group received repeated tracheal intubation at 6 and 8 h after returning to ICU, and tracheal extubation at postoperative 6 and 9 d. In the OR extubation group, time of postoperative mechanical ventilation, length of postoperative ICU and hospital stay of the recipients were shorter than those in the ICU extubation group (all P < 0.05). The incidence of grade 3 primary graft dysfunction (PGD), atrial tachyarrhythmia, continuous renal replacement therapy and 1-year survival rate did not significantly differ between two groups (all P > 0.05). Conclusions The tracheal extubation regimen in the operating room for COPD patients after single-lung transplantation established by our hospital is safe and feasible, which shortens the time of postoperative mechanical ventilation, the length of postoperative ICU and hospital stay, whereas does not increase the incidence of postoperative complications.

Reintubación postoperatoria en pacientes sometidos a reemplazo valvular aórtico: extubación estándar vs ultra fast-track / Postoperative reintubation in patients undergoing aortic valve replacement: standard extubation vs ultra fast-track

Resumen: Introducción: Existe discrepancia para la extubación temprana de los pacientes sometidos a reemplazo valvular aórtico por estenosis, debido a su tendencia a desarrollar hipertensión postoperatoria que puede condicionar un fracaso del tratamiento quirúrgico. Objetivo: Comparar la incidencia de reintubación postoperatoria por hipertensión arterial en pacientes sometidos a reemplazo valvular aórtico con la técnica de extubación estándar vs ultra fast-track. Material y métodos: Se realizó un estudio de cohortes retrospectivo, incluyó a 73 pacientes sometidos a reemplazo valvular aórtico, se asignaron a dos grupos dependiendo de la técnica de extubación: estándar (grupo I) y ultra fast-track (grupo II). Se evaluó la presencia de hipertensión arterial y de reintubación postoperatoria. El análisis de variables se realizó con χ2. Una p < 0.05 fue significativa. El procesamiento se realizó con el software SPSS v-24.0. Resultados: Cuarenta y cinco pacientes pertenecían al grupo I y 28 al grupo II. La incidencia de hipertensión arterial y de reintubación fue mayor para el grupo II (p = 0.027), no hubo diferencias en cuanto a la morbilidad (p = 0.348), mortalidad (p = 0.202) y días de estancia postoperatoria (p = 0.182). Conclusión: La incidencia de reintubación postoperatoria por hipertensión arterial en pacientes sometidos a reemplazo valvular aórtico con la técnica ultra fast-track es mayor que con la extubación estándar en nuestra unidad hospitalaria.

Abstract: Introduction: There is controversy about the use of early extubation in patients undergoing aortic valve replacement due to stenosis, given their tendency to develop postoperative hypertension, which could defeat the whole purpose of the surgical intervention. Objective: To compare the incidence of postoperative reintubation for hypertension in patients undergoing aortic valve replacement using the standard extubation technique and the ultra fast-track. Material and methods: A retrospective cohort study that included 73 cases of patients undergoing aortic valve replacement. The patients were divided into two according to the extubation technique used: standard (group I) and ultra fast-track (group II). The presence of hypertension and postoperative reintubation was evaluated. The analysis of variables was performed using the χ2 test. A p < 0.05 was considered significant. The data were processed using SPSS v. 24.0. Results: 45 patients were in group I and 28 in group II. The incidence of hypertension and reintubation was higher in group II (p = 0.027). There were no differences in morbidity (p = 0.348), mortality (p = 0.202) and length of postoperative stay (p = 0.182). Conclusion: In our hospital unit, the incidence of postoperative reintubation for hypertension in patients undergoing aortic valve replacement with the ultra fast-track technique is higher than with standard extubation.

Perioperative anesthetic care of children with Congenital Cystic Adenomatous Malformation: A report of 3 cases

@#<p style="text-align: justify;">Congenital cystic adenomatoid malformation (CCAM) is a rare developmental entity. Symptomatic patients must undergo thoracic surgery for lobectomy. Perioperative anesthetic management is challenging because it involves<br />thoracotomy in a young patient that may lead to hemodynamic compromise and inadequate ventilation. We present 3 cases of pediatric patients (6 months - 2 years old) with CCAM who underwent lobectomy.</p>

Prevalencia y factores de riesgo del fracaso de extubación en una Unidad de Cuidados Intensivos Pediátricos de alta complejidad / Prevalence of extubation and associated risk factors at a tertiary care pediatric intensive care unit

Introducción. El fracaso de la extubación (FE) está asociado a mayor riesgo de neumonía, estadía hospitalaria y mortalidad. Objetivo. Determinar la prevalencia del FE e identificar factores asociados en nuestra población. Materiales y métodos. Diseño observacional y retrospectivo. Ingresaron todos los pacientes mayores de 1 mes hasta 18 años que, en el período 2012-2016, requirieron asistencia respiratoria mecánica más de 12 h, y al menos tuvieron una extubación programada durante su internación. Se registraron los aspectos relacionados con la ventilación y las causas de fracaso. Resultados. Se extubaron 731 pacientes y la prevalencia de FE fue del 19,3 %. Las causas de fracaso fueron la obstrucción alta de la vía aérea (51,4 %), fatiga muscular (20,1 %), depresión del centro respiratorio (14,6 %) e incapacidad de proteger la vía aérea (9,7 %). Los factores independientes para explicar el FE según el análisis multivariado fueron afección crónica compleja neurológica (odds ratio -#91;OR-#93;= 2,27; intervalo de confianza del 95 % -#91;IC-#93;= 1,21-4,26); infección respiratoria aguda baja en el paciente con una secuela previa (OR= 1,87; IC 95 %= 1,113,15); lesión neurológica aguda (OR= 1,92; IC 95 %= 1,03-3,57); extubación no planeada (OR= 2,52; IC 95 %= 1,02-6,21) y la presencia de estridor (OR= 5,84; IC 95%= 3,66-9,31). Conclusión. La principal causa de FE fue la obstrucción alta de la vía aérea. La secuela neurológica y la afección neurológica aguda, la extubación no planeada y la presencia de estridor posextubación fueron identificadas como factores de riesgo asociados al FE.

Introduction. Extubation failure (EF) is associated with a higher risk for pneumonia, hospital stay, and mortality. Objective. To determine the prevalence of EF and identify the associated factors in our population.Materials and methods. Observational and retrospective design. All patients aged 1 month old to 18 years old who required mechanical ventilation for more than 12 hours and underwent at least one scheduled extubation during their stay in the 2012-2016 period were included. The aspects related to ventilation and the causes of failure were recorded. Results. Seven hundred and thirty-one patients were extubated and the prevalence of EF was 19.3 %. The causes of failure included upper airway obstruction (51.4 %), muscle fatigue (20.1 %), respiratory center depression (14.6 %), and inability to protect the airways (9.7%). As per the multivariate analysis, the independent factors that accounted for EF were neurological complex chronic condition (odds ratio [OR] = 2.27; 95 % confidence interval [CI] = 1.21-4.26); acute lower respiratory tract infection in a patient with prior sequelae (OR = 1.87, 95 % CI = 1.11- 3.15); acute neurological injury (OR = 1.92, 95 % CI=1.03-3.57); unplanned extubation (OR =2.52, 95 % CI = 1.02-6.21), and presence of stridor (OR = 5.84, 95 % CI = 3.66-9.31). Conclusion. The main cause of EF was upper airway obstruction. Neurological sequelae, acute neurological injury, unplanned extubation, and the presence of postextubation stridor were identified as risk factors associated with EF

Ventilación no invasiva posextubación en cuidados intensivos pediátricos: estudio multicéntrico / Post-extubation non-invasive ventilation in the pediatric intensive care unit: a multicenter study

Introducción. El fracaso de extubación es una complicación que aumenta la morbimortalidad. La ventilación no invasiva (VNI) demostró ser efectiva como tratamiento de soporte ventilatorio. Objetivo. Determinar la tasa de éxito de la VNI posextubación y los factores asociados al éxito o fracaso del procedimiento. Población y métodos. Diseño: observacional, retrospectivo, analítico y multicéntrico. Ingresaron todos los pacientes que requirieron VNI posextubación durante 2014 y 2015. Se denominó VNI de rescate la implementación por falla respiratoria aguda y VNI electiva, su aplicación en forma profiláctica. Se definió fracaso de la VNI la necesidad de intubación orotraqueal en las primeras 48 horas. Se compararon las características entre éxitos y fracasos, los tipos de VNI y se realizó un relevamiento del equipamiento utilizado. Resultados. Precisaron VNI de rescate 112 niños y VNI electiva, 143. Las tasas de éxitos fueron de 68,8% y 72,7%, respectivamente. Aquellos que fracasaron la VNI de rescate tuvieron una mortalidad mayor que aquellos con VNI exitosa. Se observaron más días de internación y de ventilación mécanica invasiva previa a la extubación en el grupo de VNI electiva. El diagnóstico más frecuente fue la infección respiratoria aguda baja en el niño sano. Conclusiones. La utilización de VNI posterior a la extubación puede ser una herramienta útil para evitar el reingreso a ventilación mecánica invasiva. Los pacientes inmunocomprometidos y con antecedentes neurológicos tuvieron mayor fracaso. Los pacientes que fracasaron toleraron menos horas de VNI y presentaron mayor estadía en la Unidad de Cuidados Intensivos Pediátricos.

Introduction. Extubation failure is a complication that increases morbidity and mortality. Noninvasive ventilation (NIV) has demonstrated to be effective as ventilatory support therapy. Objective. To determine the rate of postextubation NIV success and the factors associated with procedural failure or success. Population and methods. Design: observational, retrospective, analytical, and multicenter study. All patients who required post-extubation NIV during 2014 and 2015 were included. Rescue NIV was defined as the implementation of NIV for acute respiratory failure; elective NIV was described as its implementation for prophylaxis. NIV failure was defined as the need for orotracheal intubation within the first 48 hours. The characteristics of failure and success and the types of NIV were compared, and the equipment used was assessed. Results. Rescue NIV was required in 112 children; elective NIV, in 143. The rates of success were 68.8% and 72.7%, respectively. Mortality was higher among patients in whom rescue NIV failed compared to those with successful NIV. A longer length of stay and more days of invasive mechanical ventilation prior to extubation were observed in the elective NIV group. The most common diagnosis was acute lower respiratory tract infection in previously healthy children. Conclusions. The use of post-extubation NIV may be a useful tool to prevent reintubation with invasive mechanical ventilation. Immunocompromised patients and those with neurological history had a higher rate of failure. Patients with failure tolerated less hours of NIV and had a longer length of stay in the pediatric intensive care unit.

Cânula nasal de alto fluxo pós-extubação traqueal em criança com obstrução de vias aéreas superiores: relato de caso / High-flow nasal cannula post-tracheal extubation in a child with upper airway obstruction: case report

RESUMO Objetivo: Relatar o caso de um lactente que necessitou de intubação traqueal no setor de emergência pediátrica por conta de laringite aguda grave e que, após a extubação traqueal programada, fez uso, com sucesso, da cânula nasal de alto fluxo, a qual, possivelmente, evitou a falha da extubação traqueal. Descrição do caso: Paciente masculino, 8 meses de idade, admitido no pronto atendimento de pediatria com desconforto respiratório agudo por causa de obstrução alta de vias aéreas secundária à laringite aguda grave. Foi imediatamente intubado e encaminhado para a unidade de terapia intensiva (UTI) pediátrica. Apresentou falha de extubação em função de edema importante de laringe evidenciado por broncoscopia, o que contraindicou a extubação. Na segunda tentativa de extubação, o paciente apresentou desconforto respiratório, melhorando após uso da cânula nasal de alto fluxo, com redução da frequência cardíaca e respiratória, possibilitando a extubação com sucesso. Comentários: O uso da cânula nasal de alto fluxo foi eficaz e apresentou boa resposta nesse paciente com laringite aguda, sugerindo ser um possível adjuvante para o tratamento, evitando-se a piora do quadro respiratório e da necessidade de reintubação.

ABSTRACT Objective: To report a case of a patient who required tracheal intubation in a pediatric emergency department due to acute laryngitis and that, after the planned extubation, has successfully used the high-flow nasal cannula, which possibly prevented extubation failure. Case description: A male 8-month-old child was admitted to the pediatric emergency room with acute respiratory distress due to a high airway obstruction secondary to severe acute laryngitis. He was immediately intubated and referred to the pediatric intensive care unit. He presented extubation failure due to a significant laryngeal edema evidenced by bronchoscopy. In the second attempt to extubate, he presented respiratory distress, but, after the use of the high-flow nasal cannula, he became stable, reducing the heart and respiratory frequencies, and the extubation was successful. Comments: The use of the high-flow nasal cannula was effective and presented good response in this patient with acute laryngitis, suggesting that it is a possible adjuvant for the treatment, avoiding worsening respiratory conditions and the need for reintubation.

Effects of Dexmedetomidine Hydrochloride on Cadiovascular Response of Middle Aged and Elderly Pa-tients during Tracheal Extubation Period / 中国药房

OBJECTIVE:To evaluate effects of dexmedetomidine hydrochloride on cardiovascular response of middle aged and elderly patients during tracheal extubation period. METHODS:110 general anesthesia patients with colorectal cancer were collected and randomly divided into observation group and control group,with 55 cases in each group. All patients received general anesthe-sia with same dose. Observation group was given intravenous pump of dexmedetomidine hydrochloride 0.5 μg/kg after surgery,and control group was given intravenous pump of propofol 0.5 μg/kg. HR and MAP of 2 groups were compared 10 min before tracheal extubation,at the moment of tracheal extubation,5 and 10 min after tracheal extubation. The oxygen saturation of blood,the time of respiration recovery,opening eyes and extubation were recorded in 2 groups. RESULTS:There was no statistical significance in HR and MAP between 2 groups 10 min before extubation and 10 min after extubation (P>0.05). HR and MAP of observation group were significantly lower than those of control group at the moment of extubation and 5 min after extubation,the levels of HR and MAP were significantly increased in the 2 groups with statistical significance (P0.05). The time of open-ing eyes in observation group was significantly shorter than in control group,with statistical significance (P<0.05). CONCLU-SIONS:Dexmedetomidine hydrochloride could significantly decrease cardiovascular stress response and shorten recovery time of middle age and elderly patients with colorectal cancer during tracheal extubation period.

Median effective dose of esmolol for maintaining cardiovascular stability in elderly and non-elderly hypertensive patients during tracheal extubation / 中国医师进修杂志

Objective To study the optimal dose of esmolol for maintaining cardiovascular stability in patients with hypertension during tracheal extubation. Methods In post-anestheisa care unit, hypertensive patients after general anesthesia meeting the extubation criteria were included. Patients were divided into 2 groups according the age: group Ⅰ (>65 years old for the elderly hypertensive, 21 cases), and groupⅡ(≤65 years old for the non-elderly hypertensive, 22 cases). All the patients received esmolol bolus before sputum suction and tube extraction, and the tracheal extubation were extubated 2 minutes after esmolol bolus. The systolic blood pressure, diastolic blood pressure and heart rate were was recorded before tracheal extubation, 2 min after esmolol bolus, at the time of sputum suction extubation, 1 min after tracheal extubation, 3 min after tracheal extubation and 5 min after tracheal extubation. Esmolol dose was determined by the up and down method. Initial dose was 0.5 mg/kg, in accordance with the arithmetic dose (0.2 mg/kg) increasing or decreasing progressively. In negative results (the systolic blood pressure at extubation or 5 min after extubation ≥ 20% of the base, or the systolic blood pressure at sputum suction extubation>180 mmHg, 1 mmHg=0.133 kPa) esmolol dose increased progressively, and in positive results (the systolic blood pressure at extubation or 5 min after extubation<20%of the base) esmolol dose decreased progressively. When the crosspoint (from positive to negative result) reached 6, the study was terminated. Results The median effective doses of esmolol for maintaining cardiovascular stability in groupⅠand groupⅡwere (0.6 ± 0.1) and (0.8 ± 0.1) mg/kg. Conclusions Esmolol can maintain cardiovascular stability in patients with hypertension during tracheal extubation. Median effective dose decreases in older hypertensive patients.

A comparative study of the effect of dexmedetomidine and lignocaine on hemodynamic responses and recovery following tracheal extubation in patients undergoing intracranial surgery.

Background: Recovery from general anesthesia and extubation is a period of intense physiological stress for patients. The most feared complications after intracranial surgery are development of an intracranial hematoma and major cerebral edema. Both may result in cerebral hypoperfusion and brain injury. Thus, the anesthetic emergence of a neurosurgical patient should include maintenance of stable respiratory and cardiovascular parameters. Minimal reaction to the endotracheal tube removal prevents sympathetic stimulation and increases in venous pressure. In our study, we compared dexmedetomidine HCl, lignocaine HCl and placebo to blunt stress response and providing a smooth transition from extubation phase. Methods: 75 ASA Grade I and II patients aged 18-60 years scheduled for elective intracranial surgery for intracranial space occupying lesions were randomly divided into three groups of 25 each. Balanced general anesthesia was given. Inhalation anesthetic was discontinued and after return of spontaneous respiration patient in Group D received injection dexmedetomidine 0.5 μg/kg intravenous (IV), Group X received injection lignocaine 1.5 mg/kg IV and Group P received 10 ml normal saline IV over 60 sec. Heart rate (HR), mean arterial pressure (MAP), quality of extubation were measured at 1, 3, 5, 10, 15 mins interval after extubation. Emergence time and extubation time were noted and quality of extubation was evaluated on cough grading. Results: There was a signifi cant decrease in MAPs and HR in Group D as compared to Group L and Group P (p<0.05) at all-time interval after extubation. Extubation quality score of the majority of patients was 1 in Group D, 2 in Group X, and 3 in Group P (p<0.001). The duration of emergence and extubation were comparable in all three groups. Sedation score of the most patient was 3 (44%) in Group D and 2 (56%) in Group X. Six patients in Group D and 1 patient in Group X had bradycardia. Conclusion: Single bolus dose of IV dexmedetomidine HCl 0.5 mg/kg given before tracheal extubation effectively attenuates hemodynamic response to extubation as compared to 1.5 mg/kg lignocaine HCl.

Intraoperative predictors of early tracheal extubation after living-donor liver transplantation / 대한마취과학회지

BACKGROUND: Prolonged mechanical ventilation after liver transplantation has been associated with deleterious clinical outcomes, so early tracheal extubation posttransplant is now increasing. However, there is no universal clinical criterion for predicting early extubation in living-donor liver transplantation (LDLT). We investigated specific predictors of early extubation after LDLT. METHODS: Perioperative data of adult patients undergoing LDLT were reviewed. "Early" extubation was defined as tracheal extubation in the operating room or intensive care unit (ICU) within 1 h posttransplant, and we divided patients into early extubation (EX) and non-EX groups. Potentially significant (P < 0.10) perioperative variables from univariate analyses were entered into multivariate logistic regression analyses. Individual cut-offs of the predictors were calculated by area under the receiver operating characteristic curve (AUC) analysis. RESULTS: Of 107 patients, 66 (61.7%) were extubated early after LDLT. Patients in the EX group showed shorter stays in the hospital and ICU and lower incidences of reoperation, infection, and vascular thrombosis. Preoperatively, model for end-stage liver disease score, lung disease, hepatic encephalopathy, ascites, and intraoperatively, surgical time, transfusion of packed red blood cell (PRBC), urine output, vasopressors, and last measured serum lactate were associated with early extubation (P < 0.05). After multivariate analysis, only PRBC transfusion of < or = 7.0 units and last serum lactate of < or = 8.2 mmol/L were selected as predictors of early extubation after LDLT (AUC 0.865). CONCLUSIONS: Intraoperative serum lactate and blood transfusion were predictors of posttransplant early extubation. Aggressive efforts to ameliorate intraoperative circulatory issues would facilitate successful early extubation after LDLT.

The comparison of intranasal and intravenous dexmedetomidine on the adverse reactions of tracheal extubation during wake up of general anesthesia / 中国医师进修杂志

Objective To compare the adverse reactions of intranasal and intravenous dexmedetomidine on tracheal extubation during wake up of general anesthesia.Methods One hundred and twenty patients who ASA Ⅰ or Ⅱ grade were divided into four groups (each 30 patients) by random digits table method.The patients in intravenous group were given 0.5 μ g/kg intravenous dexmedetomidine (diluted to 10 ml by 0.9％ sodium chloride,intravenous injection slowly,≥30 s).The patients in intranasal group 1 were given 0.5 μg/kg intranasal dexmedetomidine.The patients in intranasal group 2 were given 0.8 μg/kg intranasal dexmedetomidine.The patients in control group were given intravenous 0.9％ sodium chloride.The systolic blood pressure(SBP),mean arterial blood pressure (MAP),heart rate were compared among groups.Eyes open time and extubation time,the rate of cough and the degree during extubation were compared too.Results The SBP,MAP,heart rate in intravenous group,intranasal group 1 were significantly higher than those in basal state (P ＜ 0.05).The SBP,MAP,heart rate at different time in intranasal group 2 had no significant difference (P ＞ 0.05).The SBP,MAP,heart rate before extubation and after extubation for 3 min in control group were significantly higher than those in intravenous group,intranasal group 1 and intranasal group 2 (P ＜ 0.05).Eyes open time and extubation time among four groups had no significant difference(P ＞0.05).The rate of cough,restlessness and 3 scores of degree before extubation in intravenous group,intranasal group 1 and intranasal group 2 were significandy lower than those in control group [43％ (13/30),50％(15/30),47％(14/30) vs.70％ (21/30); 17％(5/30),23％(7/30),20％(6/30) vs.43％(13/30);53％ (16/30),60％ (18/30),50％ (15/30) vs.80％ (24/30)] (P ＜ 0.05).Conclusions Either intravenous or intranasal dexmedetomidine can effectively prevent the stress reaction during extubation,decrease the degree of restlessness and cough.Intranasal dexmedetomidine(0.8 μ g/kg) is more effective and safe.

The effect of tetracaine jelly on hemodynamics during extubation period in general anesthesia / 中国医师进修杂志

Objective To study the effect of tetracaine jelly on hemodynamics during extubation period in general anesthesia.Methods One hundred patients who performed tracheal cannula and general anesthesia were divided into control group (50 patients) and experiment group (50 patients) by random digits table method.Control group:sterile paraffin oil was applied to the endotracheal tube.Experiment group:tetracaine jelly was applied to the endotracheal tube.The systolic blood pressure (SBP),diastolic blood pressure (DBP) and heart rate(HR) were measured before the anesthesia induction(T1),5 min after stopping infusion drugs (T2),1 min after tracheal extubation (T3),3 min after tracheal extubation (T4) and 5 min after tracheal extubation (T5) were observed.The resistant effect after waking and the number of sore throat,hoarseness were recorded.Results The level of SBP,DBP,HR at T1 and T2 had no significant difference between two groups (P ＞ 0.05).The level of SBP,DBP,HR at T3-T5 in experiment group were significantly lower than those in control group [SBP:(122.3 ± 11.3),(120.0 ± 9.8),(112.0 ± 6.3) mmHg (1 mmHg =0.133 kPa) vs.(158.3 ± 15.0),(142.5 ± 13.5),(133.0± 14.5) mmHg;DBP:(75.0 ± 13.5),(75.8 ± 10.5),(58.3 ±4.2) mmHg vs.(111.0 ± 20.3),(106.5 ± 12.8),(63.8 ± 15.8) mmHg;HR:(81.9 ± 13.7),(83.6 ± 13.4),(60.7 ± 3.5) times/min vs.(113.5 ± 19.4),(117.5 ± 21.7),(71.8 ± 14.6) times/min](P ＜ 0.05).The total effective rate of tolerance in experiment group was higher than that in control group [96％(48/50) vs.56％(28/50)],the rate of sore throat and hoarseness were lower than those in control group [6％ (3/50) vs.48％ (24/50),4％ (2/50) vs.36％ (18/50)],there were significant differences (P ＜ 0.05).Conclusion Tetracaine jelly can reduce the cardiovascular response of tracheal extubation,enhance the tolerance of tracheal tube and decrease the morbidity of sore throat and hoarseness.

Impact of a quality improvement intervention on the incidence of unplanned extubations in a Pediatric Intensive Care Unit / Impacto de una intervención de mejora de calidad sobre la incidencia de extubaciones no planeadas en una unidad de cuidados intensivos pediátricos

Introduction. An unplanned extubation (UEX) is a frequent and preventable adverse event of mechanical ventilation. Objectives. To fnd out the causes of unplanned extubation and assess the use of a quality improvement intervention to reduce this event rate. Population. Patients with invasive mechanical ventilation for more than 12 hours over the period from May 1st 2010 and April 30th 2011 in a Pediatric Intensive Care Unit (PICU). Design. Uncontrolled, before and after study. A quality improvement intervention was used over the period between November 2010 and April 2011, which included training PICU staff, establishing standards to fx the endotracheal tube and control its fxation. Results. There were 395 patients admitted to the PICU, 262 (66%) were on mechanical ventilation for more than 12 hours. A total of 27 patients had 30 UEX events: 22 during the period between May and October 2010, and 8 during the period between November 2010 and April 2011. The most common causes of UEX were incorrect fxation of the endotracheal tube (n= 11) and the use of a procedure of care (n= 11). Patients with UEX required additional days on mechanical ventilation: 7 (3-15.5) versus 5 (2-8) days; p= 0.077 and hospitalization: 9.5 (5-19) versus 7 (4-10) days; p= 0.049. During the implementation of the quality improvement intervention, the mean incidence of UEX decreased from 2.30 (95% CI: 1.12-3.49) to 0.86 (95% CI: 0.27-1.44) per 100 days of mechanical ventilation (p= 0.037). Conclusions. The most common causes of UEX were the incorrect fxation of the endotracheal tube and the use of a procedure of care. The implementation of a quality improvement intervention reduced the incidence of UEX.

Introducción. Las extubaciones no planeadas (ENP) son eventos adversos frecuentes y prevenibles de la ventilación mecánica. Objetivos. Conocer las causas de las extubaciones no planeadas y evaluar la utilidad de la aplicación de una intervención de mejora de la calidad para disminuir ese evento. Población. Pacientes con ventilación mecánica invasiva durante más de 12 horas durante el período comprendido entre el 1 de mayo del 2010 y el 30 de abril del 2011 en una unidad de cuidados intensivos pediátricos (UCIP). Diseño. Estudio antes-después no controlado. Se aplicó una intervención de mejora de calidad en el período noviembre de 2010-abril de 2011 que incluyó capacitación del personal de la UCIP, estandarización de la fjación del tubo endotraqueal y control de la fjación. Resultados. Ingresaron en la UCIP 395 pacientes, 262 (66%) recibieron ventilación mecánica durante más de 12 horas. Presentaron 30 episodios de ENP 27 pacientes: 22 durante el período mayo a octubre de 2010, y 8 durante el período noviembre de 2010-abril de 2011. Las causas más frecuentes fueron la incorrecta fjación del tubo endotraqueal (n= 11) y la realización de un procedimiento de atención y cuidado (n= 11). Los pacientes que la presentaron requirieron más días de ventilación mecánica: 7 (3 a 15,5) contra 5 (2 a 8) días; p= 0,077 y de internación: 9,5 (5 a 19) contra 7 (4 a 10) días; p= 0,049. Durante la intervención de mejora de la calidad la incidencia media de ENP disminuyó de 2,30 (IC 95% 1,12 a 3,49) a 0,86 (IC 95% 0,27 a 1,44) por 100 días de ventilación mecánica (p= 0,037). Conclusiones. Las causas más frecuentes de ENP fueron la incorrecta fjación del tubo endotraqueal y la realización de procedimientos de atención y cuidado. La implementación de una intervención de mejora de la calidad disminuyó la incidencia de ENP.

Complicaciones de la extubación traqueal en el período posoperatorio inmediato de la colecistectomía laparoscópica / Complications of the tracheal extubation in the early postoperative period of laparoscopic cholecystectomy

Se realizó un estudio descriptivo y prospectivo de 112 pacientes colecistectomizados por videolaparoscopia con anestesia general orotraqueal en el Hospital Clinicoquirúrgico Docente "Dr. Joaquín Castillo Duany" de Santiago de Cuba, desde diciembre del 2010 hasta marzo del 2011, a fin de determinar la incidencia de complicaciones asociadas a la extubación traqueal en el periodo posoperatorio inmediato. En la serie predominaron los afectados de 31-45 años (43,7%) y la taquicardia (19,6 %) como la complicación más frecuente. Asimismo, la edad, la obesidad y el tabaquismo favorecieron el desarrollo de complicaciones atribuibles a la extubación traqueal, las cuales tuvieron mayor frecuencia en la medida que el paciente estuvo más despierto al realizar la misma.

A descriptive and prospective study was carried out in 112 patients undergoing cholecystectomy by video laparoscopy under general orotracheal anesthesia in "Dr. Joaquín Castillo Duany" Teaching Clinical Surgical Hospital of Santiago de Cuba, from December 2010 to March 2011, to determine the incidence of complications associated with tracheal extubation in the early postoperative period. In the series patients of 31-45 years (43.7%) and tachycardia (19.6 %) as the most frequent complication prevailed. Also, age, obesity and smoking habit favored the occurrence of complications attributable to tracheal extubation, which were more frequent as the patient was more awake when performing it.

Application of BIS monitoring and Ramsay score in the prevention of unplanned tracheal extubation in ICU patients / 中国实用护理杂志

Objective To investigate the application value of BIS monitoring and Ramsay score in the prevention of unplanned tracheal extubation in ICU patients.Methods 93 patients were enrolled in this study,they were divided into the experimental group(47 cases)and the control group(46 cases) using random number method.They received sedation regimens with BIS monitoring and Ramsay score or Ramsay score respectively.Occurrence rate of unplanned extubation was compared between the two groups.Results The occurrence rate of unplanned extubation was significantly lower in the experimental group than that of the control group.Conclusions BIS monitoring and Ramsay score is a suitable ways for the management of sedation of intubated patients.

Risk factors for airway management after tracheal extubation in old patients / 中国基层医药

ObjectiveTo investigate the risk factors for airway management after tracheal extubation in old patients. Methods280 patients underwent general anesthesia were enrolled in the study. The procedure of anesthesia induction and maintenance were in the routine method. The patients were with tracheal extubation under clinical standards after operation. Dyspnea was recorded after tracheal extubation. They were divided into dyspnea group and general group. Twelve perioperative variables, ten variables in operation and six post-operative variables of two groups were compared respectively. ResultsThe incidence of dyspnea after tracheal extubation was 8.6％. Analysis identified that obesity( BMI ≥25kg/m2 ), preoperative lung disease and without postoperative neostigmine were the significant risk factors for dyspnea. ConclusionBMI≥25kg/m2 ,preoperative lung disease and without antagonist muscular relaxant were the main risk factors for dyspnea after tracheal extubation in old patients.

Continuous positive airway pressure improves the immediate post-extubation airway patency / 대한마취과학회지

BACKGROUND: Endotracheal tube extubation can cause laryngospasm, aspiration, upper airway obstruction and hypoxia. In addition, the risk of pulmonary complication increases during extubation for the patients with a difficult airway or a cervical spine injury. The aim of this study was to exam the effect of continuous positive airway pressure (CPAP) on the post-extubation airway patency and the recovery from anesthesia at the recovery room. METHODS: 30 adult patients who were scheduled for spine surgery were randomly allocated into 2 groups depending on the using of CPAP before extubation. Neuromuscular monitoring was performed via accelomyography. Tracheal extubation was performed at a TOF ratio of 70%. The incidence of spontaneous recovery of respiration, without airway manipulation and hypoxia, at the recovery room was measured for each group. The time to get a PAR score of 10 at the recovery room and the discharge time from the recovery room were checked too. RESULTS: The incidence of spontaneous recovery of respiration without airway manipulation was 67% in the CPAP group, which was significantly greater than that of the control group (13%). Yet there was no difference between the CPAP and control groups for the incidence of hypoxia in the recovery room (13% and 20%, respectively). There were also no differences in the time to get a PAR score of 10 at the recovery room and the discharge time from the recovery room. CONCLUSIONS: CPAP that is applied for tracheal tube extubation improves the immediate post-extubation airway patency, but it does not reduce the recovery room pulmonary complications and the recovery room discharge time.

Effects of oral premedication with clonidine on stress response during tracheal extubation / 中国临床药理学与治疗学

AIM: To investigate the effect of premedication with clonid in e on the concentrations of catecholamine (CA), angiotention Ⅱ (AⅡ), cortisol a nd carbohydrate metabolism during tracheal extubation. METHODS: Twenty-two patients scheduled for general anesthesia with tracheal intubation were randomly divided into two groups: clonidine group and control group. Oral p remedication with clonidine 5 ?g?kg -1 was taken in clonidine group 6 0 min before anesthesia induction in addition to some common premedication in bo th groups. The change of hemodynamics,arterial plasma concentrations of CA, A Ⅱ, cortisol, blood sugar and lactic acid were measured before anesthesia, befor e intubation and 1,2,5, 10 min after tracheal extubation, respectively. RESULTS: The levels of CA, AⅡ, cotisol, blood sugar and lactic acid were significantly increased during tracheal extubation in both groups,but the levels in control group were higher than those in clonidine group. The change of hemodynamics was more stable in clonidine group than that in control group. CONCLUSION: Oral premedication with clonidine can alleviate stress response during tracheal extubation.