Objective To explore the effect of early rehabilitation treatment on complications and prognosis of elderly patients with sever pneumonia undergoing mechanical ventilation. Methods The patients who meeting the inclusion criteria were randomly divided into an early rehabilitation group and a control group, with 35 cases in each group. On basis of same routine treatment, the early rehabilitation group was treated with early rehabilitation. The early rehabilitation methods included exercise therapy, electrical stimulation therapy, swallowing therapy, cough training and wheelchair-bed transfer training, etc. The patients received individual training methods according to their conditions. The difference of two groups were observed in the rates of ICU-acquired weakness (ICU-AW), ventilator-associate pneumonia (VAP), the incidence of delirium, the mechanical ventilation time, ICU-hospital time, total hospital time, 30-day hospital mortality, extubation fail rate and tracheotomy rate. Results Compare with the control group, the incidence of ICU-AW (14.28% vs. 37.14%), VAP (8.57% vs. 28.57%), and delirium (40.00% vs. 65.71%) in the early rehabilitation group were significantly reduced (all P<0.05). The duration of delirium [(3.50±1.31) dvs. (6.40±1.47) d], the ventilation time [(6.32±2.19) d vs. (9.40±4.43) d], ICU hospitalization time [(10.80±3.64) d vs. (15.31±3.85) d] and total hospitalization time [(22.52±7.56) d vs. (30.22±11.54) d] of the early rehabilitation group were significantly lower than the control group (all P<0.001). The tracheotomy rate and 30-day hospital mortality of the early rehabilitation group were significantly lower than the control group (25.71%vs. 51.42% and 28.57% vs. 54.28%, both P<0.05). There was no significant difference in extubation fail rate (5.71%vs. 11.42%, P>0.05). In the early rehabilitation group, there were no complications such as pipe prolapse, limb injury or serious arrhythmia. Conclusion Early rehabilitation can reduce the incidence of ICU-AW, VAP, delirium in elderly patients with severe pneumonia, help to shorten the mechanical ventilation time, ICU hospitalization time and total hospitalization time, reduce extubation failure rate and tracheotomy rate, so it is safe and effective, and worthy of being popularized and applied.
Objective To analyze the risk factors for duration of mechanical ventilation in critically ill patients. Methods Ninety-six patients who received mechanical ventilation from January 2011 to December 2011 in intensive care unit were recruited in the study. The clinical data were collected retrospectively including the general condition, underlying diseases, vital signs before ventilation, laboratory examination, and APACHEⅡ score of the patients, etc. According to ventilation time, the patients were divided into a long-term group ( n = 41) and a short-term group ( n = 55) . Risk factors were screened by univariate analysis, then analyzed by logistic regression method.Results Univariate analysis revealed that the differences of temperature, respiratory index, PaCO2 , white blood cell count ( WBC) , plasma albumin ( ALB) , blood urea nitrogen ( BUN) , pulmonary artery wedge pressure ( PAWP) , APACHEⅡ, sex, lung infection in X-ray, abdominal distention, and complications between two groups were significant.With logistic multiple regression analysis, the lower level of ALB, higher level of PAWP, lung infection in X-ray, APACHE Ⅱ score, abdominal distention, and complications were independent predictors of long-term mechanical ventilation ( P lt;0. 05) . Conclusion Early improving the nutritional status and cardiac function, control infection effectively, keep stool patency, and avoid complications may shorten the duration of mechanical ventilation in critically ill patients.
Objective To evaluate the influence of early mobilization on delirium and respiratory dynamics in mechanically ventilated patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD). Methods The study prospectively recruited 107 AECOPD patients who admitted between January 2014 and June 2015 and underwent mechanical ventilation.On basis of same routine treatment,the patients were randomly divided into a treatment group (54 cases)receiving regime of early mobilization,and a control group (53 cases)receiving routine sedation and analgesia treatment.The incidence of delirium,duration of delirium,time of mechanical ventilation,and ICU mortality were compared between two groups.The respiratory mechanical parameters including endogenous positive end expiratory pressure (PEEPi),airway resistance(Raw),static compliance(Cs),and dynamic compliance(Cd)before treatment,3 days and 5 days after treatment were also compared between two groups. Results Compared with the control group,the incidence of delirium decreased (59.3% vs. 77.4%),the duration of delirium [(1.8±1.1)d vs. (2.6±1.3)d] and mechanical ventilation[(6.2±3.4)d vs. (7.9±4.2)d] reduced in the treatment group with significant difference(P<0.05).There was no significant difference in respiratory mechanical parameters before treatment between two groups(P>0.05).While at 3 days and 5 days after treatment,PEEPi decreased [(6.23±2.83)cm H2O vs. (7.42±2.62)cm H2O,(4.46±2.20)cm H2O vs. (5.92±2.51)cm H2O],Raw decreased [(20.35±7.15)cmH2O·L-1·s-1 vs. (23.23±6.64)cm H2O·L-1·s-1,(16.00±5.41)cm H2O·L-1·s-1 vs. (19.02±6.37)cm H2O·L-1·s-1],Cd increased [(25.20±9.37)mL/cm H2O vs (21.75±7.38)mL/cm H2O,(27.46±5.45)mL/cm H2O vs. (24.40±6.68)mL/cm H2O] in the treatment group compared with the control group(P<0.05),and the difference in Cs was not significant(P>0.05).No complications such as slippage,physical injury,or malignant arrhythmia occurred in two groups.The mortality slightly decreased in the treatment group compared with the control group (5.6% vs 11.3%),but the difference was not statistically significant(P>0.05). Conclusions The incidence of delirium is high in mechanically ventilated patients with AECOPD.Early mobilization can reduce the incidence and duration of delirium,decrease the airway resistance,increase the dynamic lung compliance,relieve dynamic pulmonary hyperinflation and reduce PEEPi,so as to improve the respiratory function and shorten the time of mechanical ventilation.Therefore,early mobilization is an effective and safe regime for AECOPD patients underwent mechanical ventilation.
Weaning difficulty is common in critically ill patients. Prolonged mechanical ventilation and weaning failure adversely affect the clinical outcome. How to better promote and achieve the early extubation is a very important subject. As a multi-dimensional monitoring method of important structure, function and morphology, critical care ultrasound which is helpful to improve our understanding and grasp of the core links in the respiratory circuit can comprehensively evaluate the state and reserve capacity of some important organs, such as the heart, lungs and diaphragm. It has great value in assessment of weaning and guided treatment. This paper will review the application of severe ultrasound in weaning.
Objective To assess the risk factors associated with extubation failure in patients who had successfully passed a spontaneous breathing trial.Methods Patients receiving invasive mechanical ventilation for over 48 h were enrolled in the study，they were admitted into Emergency ICU of Zhongshan Hospital during May 2006 and Oct.2007.A spontaneous breathing trial was conducted by a pressure support of 7 cm H2O for 30 min.Clinical data were prospectively recorded for the patient receiving full ventilatory support before and after the spontaneous breathing trial.Regarding the extubation outcome，patients were divived into extubation success group and extubation failure group.Results A total of 58 patients with a mean（±SD） age of 69.4±12.7 years passed spontaneous breathing trial and were extubated.Extubation failure occurred in 11 patients（19%）.The univariate analysis indicated the following associations with extubation failure：elderly patients（78.1±7.9 years vs 67.4±15.1years，Plt;0.05），higher rapid shallow breathing index（RSBI） value（83±12 breaths·min-1·L-1 vs 68±19 breaths·min-1·L-1，Plt;0.05）and excessive respiratory tract secretions（54.5％ vs 21.3％，Plt;0.05）.Conclusion Among routinely measured clinical variables，elderly patients，higher RSBI value and amount of respiratory tract secretions were the valuable index for predicting extubation failure despite a successful spontaneous breathing trial.
Objectives To assess the prognostic value of blood sugar level for acute respiratory failure patients undergoing mechanical ventilation. Methods The study collected 139 acute respiratory failure patients undergoing mechanical ventilation admitted between February 2012 and October 2013. The patients were divided into a hyperglycemic group (n=123, blood sugar ≥143 mg/dl) and a non-hyperglycemic group (n=16, blood sugar <143 mg/dl). The data for basic clinical pathological characteristics and the blood sugar levels were collected, and the correlation between the blood sugar level and the prognosis was assessed using single factor analysis and logistic regression method. Results In the study, 88.49% of patients with acute respiratory failure undergoing mechanical ventilation had hyperglycemia (blood sugar ≥143 mg/dl). The proportions of patients with APACHEⅡ score ≥10, chronic obstructive pulmonary disease (COPD) or hypoxemia in the hyperglycemic group were significantly higher than those in the non-hyperglycemic group (P<0.05). APACHEⅡ ≥10, COPD and hypoxemia were significant risk factors for hyperglycemia. At the same time, the proportions of patients in the death group with hyperglycemia ≥143 mg/dl ( OR=8.354, 95%CI 1.067-65.388, P=0.018), APACHEⅡ≥10 ( OR=2.545, 95%CI 1.109-6.356, P=0.046), COPD ( OR=2.871, 95%CI 1.203-6.852, P=0.015), and hypoxemia ( OR=3.500, 95%CI 1.556-7.874, P=0.002) were significantly higher than those in the survival group. Kaplan-Meier curve analysis found that the overall survival of the hyperglycemic patients with acute respiratory failure was significantly lower than that in the non-hyperglycemic patients (P<0.001). Conclusion Blood sugar level can be used as an independent predictor for acute respiratory failure patients undergoing mechanical ventilation.
Objective To study the effects of two different tidal volume mechanical ventilation on lipopolysaccharide( LPS) -induced acute lung injury( ALI) , and explore the effects of glutamine on ALI.Methods Thirty male Sprague-Dawley rats were randomly divided into three groups. After anesthesia and tracheotomy were performed, the rats were challenged with intratracheal LPS ( 5mg/kg) and received ventilation for 4 hours with small animal ventilator. Group A received conventional tidal volume, while groupB received large tidal volume. Group C received large tidal volume as well, with glutamine injected intravenously 1 hour before ventilation. Arterial blood gases were measured every one hour. 4 hours later, the rats were killed by carotid artery bleeding. The total lung wetweightwas measured and lung coefficient ( total lung wet weight /body weight ×100) was counted. WBCs and neutrophils in BALF were counted. Protein concentration, TNF-α, IL-6, and cytokine-induced neutrophil chemoattractant-1 ( CINC-1) levels in BALF,myeloperoxidase ( MPO) , and superoxide dismutase ( SOD) levels in the lung were assayed respectively.Results PaO2 and SOD levels decreased more significantly in group B than those of group A. The lung coefficient, WBCs, neutrophils, protein, TNF-α, IL-6, and CINC-1 levels in BALF, MPO levels in lung increased more significantly in group B than those of group A. PaO2 and SOD levels were significantly higher in group C than those of group B. The lung coefficient, WBCs, neutrophils, protein, TNF-α, IL-6, and CINC-1 levels in BALF,MPO levels in lung were significantly lower in group C than those of group B. Conclusion Large tidal volume mechanical ventilation aggravates LPS-induced ALI, and glutamine has obviouslyprotective effects.
Sepsis 已经成为危重症医学中较为常见的一种综合征，它定义为因病原体感染而引起的全身性炎症反应综合征。严重Sepsis患者预后不佳，治疗上也较为困难，特别是合并Septic Shock和多器官功能不全综合征（MODS）的患者，死亡率仍然较高，因此近年来在临床及研究上均已引起明显的重视。为了能促进Sepsis的研究及治疗，国际上多个医学专科分会联合发起“拯救Sepsis运动（Surviving Sepsis Campaign, SSC）”，并于2004年首次发表了相应的指南，即Surviving Sepsis Campaign Guideline for Management of Severe Sepsis and Septic Shock。今年初SSC再次发表了新版的指南，主要是结合近年的研究成果而在原版的基础上进行适当的补充和更新，以指导临床上严重Sepsis的抢救及治疗。
Objective To investigate the effect of a real-time compliance dashboard to help reduce ventilator-associated pneumonia ( VAP) with ventilator bundle. Methods 240 patients who were admitted into the intensive care unit ( ICU) of Shougang Hospital of Peking University and had received mechanical ventilation ( MV) for over 48 hours, between January 2010 and November 2011, were studied prospectively. The patients were divided into two groups by random number table, ie. a dashboard group ( n = 120) with implementation of a real-time compliance dashboard to help reduce VAP with ventilator bundle, and a control group ( n=120) with implementation of usually routine order to help reduce VAP with ventilator bundle. The success rate of ventilator bundle implementation, incidence of VAP, duration of MV, duration within ICU, mortality within 28 days, cost within ICU were compared between two groups. Results Compared with the control group, the success rate of ventilator bundle implementation obviously increased ( 81.6% vs. 52.5%) , incidence of VAP ( 14. 5/1000 days of MV vs. 36.2 /1000 days of MV) , duration of MV [ 5( 4,7) days vs. 8( 6,11) days] , duration within ICU [ 8( 6,12) days vs. 13( 8,16) days] , mortality of 28 days ( 12.6% vs. 28.6% ) , and cost within ICU ( 36,437 vs. 58,942) in the dashboard group obviously reduced ( Plt;0.05) . Conclusions Implementation of a real time compliance dashboard to help reduce VAP with ventilator bundle can obviously improve medical personnel compliance and reduce incidence of VAP, duration of MV, duration within ICU, mortality and cost in ICU than those of routine medical order to help reduce VAP with ventilator bundle.
Objective To examine the adrenal function of critically ill patients received mechanical ventilation, and explore the relationship between the occurrence of relative adrenal insufficiency ( RAI) and weaning outcome.Methods Critically ill patients who were mechanically ventilated over 48 hours were enrolled in this study. Every patient was given one shot of corticotrophin 250 μg intravenously on the first day of admission and the first day of spontaneous-breathing-trial ( SBT) . Plasma contisol level was detected by radio-immunoassay before ( T0 ) and 30 minutes ( T30 ) after the shot. Meanwhile the following parameters were recorded including APACHEⅡ, age, and cause of disease, etc. RAI was defined as the difference between T0 and T30 ≤9 μg/dL. Receiver operating characteristic ( ROC) curve was used to evaluate the accuracy of the indicators towards the weaning outcome. Results A total of 45 patients with mechanical ventilation were recruited. The successful weaning group consisted 29 patients and the failure weaning group consisted 16 patients. The incidence of RAI in the successful weaning group ( 37.9% , 11/ 29) was significantly lower than that in the failure weaning group ( 75.0% , 12 /16) ( P=0. 017) . On the first day of admission, there was no significant difference of Δcortisol between the successful weaning group and the failure weaning group [ ( 10.3 ±5.7) μg/dL vs. ( 7.5 ±4.5) μg/dL, P=0.100) . On the first SBT day, Δcortisol of the successful weaning group was significantly higher than that in the failure weaning group [ ( 10.9 ±5.1) μg/dL vs. ( 4.9 ±2.9) μg/dL, P= 0.043] . Logistic regression analysis showed that Δcortisol was an independent risk factor of weaning. ROC curve analysis showed that on the first SBT day, the area under the curve of Δcortisol was 0.872; The sensitivity and the specificity of accurate judgmentwere 0.813 and 0.828 if Δcortisol ≤6. 95 μg/dL. Conclusions The occurrence of RAI is common in critically ill patients with mechanical ventilation. The adrenal function affects the outcome of weaning, and Δcortisol may be used as an important predictive indicator for weaning outcome.