“STUDY OF METHODS ,CRITERIAAND OUTCOME OF WEANING FROM INVASIVE MECHANICAL VENTILATION IN INTENSIVE RESPIRATORY CARE UNIT”

2021 ◽  
pp. 23-25
Author(s):  
Patel Ashlesh H ◽  
Chavda Poonam A ◽  
Pandey Arvind S

INTRODUCTION: The term "weaning" is used to describe the gradual process of decreasing ventilator support. Usually the criteria used are improvement of gas exchange, improvement of mental status, neuromuscular functional assessment and radiographic signs [2]. METHODOLOGY: In this Longitudinal study patients were recruited based on vitals, such as orientation(according to time, place and person), Respiratory Rate(>30/min), low saturation of oxygen, etc.. further follow up was done for criteria and methods of weaning over a period of 18 months and data analysis was conducted over the period of 6 months. RESULT: In our study The Mean ± SD age of the patients was 61.2±19.5 years (Range: 28- 88 years).25 (62.5%) were male and 15 (38.5%) were female. Most common diagnosis was COPD - 18 (45.0%) patients followed by bilateral pneumonia - 11 (27.5%) patients, ILD - 4 (10.0%), Koch's - 3 (7.5%) and 2 (5.0%) patients in each diagnosis of bronchial asthma and bronchiectasis. 11 (27.5%) patients had past history of ventilator support. There was no association between success of treatment and past history of ventilatory support. 23 (57.5%) patients had elective intubation whereas 17 (42.5%)patients had emergency intubation. spontaneous breathing (SBT) trial was successful in 24 (60.0%) patients. 25 (62.5%) patients were extubated and 15 (37.5%) patients were expired. CONCLUSION: Successful weaning from mechanical ventilation in the ICU depends on the application of skilled judgment, decision making, and medical and nursing interventions. On the other hand, overly aggressive and premature discontinuation of ventilatory support can precipitate ventilatory muscle fatigue, gas-exchange failure, and loss of airway protection.

2021 ◽  

Objectives: A successful weaning prediction score could be a useful tool to predict non-airway extubation failure. However, it may carry some challenges without considering the effect of the physiological reserve on the sustainability of extubation. This study investigated the possible correlation between the physiological reserve surrogate characteristics including acute, baseline, and biochemical patients’ factors and non-airway extubation failure in patients with pneumonia. Methods: A retrospective cohort study at two academic teaching hospitals was conducted between January 2019 and January 2020 with patients with pneumonia requiring invasive mechanical ventilation and with Burns Wean Assessment Program (BWAP) scores equal to or exceeding 50. Acute clinical, biochemical, and baseline characteristics were collected for both successful and failed non-airway extubation patients. Results: Among 313 patients, the mean age was 63.63 ± 10.44 years and most of the patients were males (60.7%). The median invasive mechanical duration was 7 days [Interquartile range (IQR): 5–12], the median length of ICU stay was 12 [IQR: 6–23] and the in-hospital mortality was 16.9%. Among this cohort of patients with pneumonia, 37.7% had non-airway extubation failure. Multivariate logistic regression analyses showed that higher CURB-65 score, longer duration of invasive mechanical ventilation, hemodynamic instability, healthcare-associated pneumonia, older men, history of diabetes mellitus, history of cardiac disease, hypophosphatemia, hypocalcemia, and higher admission serum sodium were associated with increased risk of non-airway extubation failure in patients with pneumonia with high BWAP score. Conclusion: A distinct successful weaning score for patients with pneumonia that considers patients’ acute clinical, biochemical, and baseline characteristics may be effective, and these factors could be reflective of the underlying physiological reserve. Sustainability score from IMV rather than weaning score is needed and may be more predictive for the extubation outcome.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yongfang Zhou ◽  
Steven R. Holets ◽  
Man Li ◽  
Gustavo A. Cortes-Puentes ◽  
Todd J. Meyer ◽  
...  

AbstractPatient–ventilator asynchrony (PVA) is commonly encountered during mechanical ventilation of critically ill patients. Estimates of PVA incidence vary widely. Type, risk factors, and consequences of PVA remain unclear. We aimed to measure the incidence and identify types of PVA, characterize risk factors for development, and explore the relationship between PVA and outcome among critically ill, mechanically ventilated adult patients admitted to medical, surgical, and medical-surgical intensive care units in a large academic institution staffed with varying provider training background. A single center, retrospective cohort study of all adult critically ill patients undergoing invasive mechanical ventilation for ≥ 12 h. A total of 676 patients who underwent 696 episodes of mechanical ventilation were included. Overall PVA occurred in 170 (24%) episodes. Double triggering 92(13%) was most common, followed by flow starvation 73(10%). A history of smoking, and pneumonia, sepsis, or ARDS were risk factors for overall PVA and double triggering (all P < 0.05). Compared with volume targeted ventilation, pressure targeted ventilation decreased the occurrence of events (all P < 0.01). During volume controlled synchronized intermittent mandatory ventilation and pressure targeted ventilation, ventilator settings were associated with the incidence of overall PVA. The number of overall PVA, as well as double triggering and flow starvation specifically, were associated with worse outcomes and fewer hospital-free days (all P < 0.01). Double triggering and flow starvation are the most common PVA among critically ill, mechanically ventilated patients. Overall incidence as well as double triggering and flow starvation PVA specifically, portend worse outcome.


2021 ◽  
pp. 80-81
Author(s):  
Katherine Esparza Maquilón ◽  
Antonio Miguel Ornes Rodriguez ◽  
Diana Mercedes Bombón Salazar ◽  
Daniela Macarena Mediavilla Paredes ◽  
Luis Gustavo Mediavilla Sevilla ◽  
...  

INTRODUCTION. Interstitial lung disease (ILD) with acute respiratory failure needs ventilatory support poorly documented. One of the interstitial diseases known is the Systemic sclerosis, its advanced stages develop CREST syndrome. Faverio P, et al. (2016) suggested do not close the door to these patients and open the correct protocol, criticizing the little value that the scientic community concede to invasive mechanical ventilation (IMV). CASE REPORT. 85-year-old male is internalized in critical care unit by pneumonia, the complementary evaluation shows a systemic sclerosis disease with CREST syndrome and it is conrmed by elevation of anti-centromere antibody and positive skin biopsy. Tomography highlights pneumonic consolidation plus interstitial lung involvement and echocardiography reveals pulmonary hypertension. The management is done with IMV, keeping the goal of driving pressure less than 15 as lung protection, recovering respiratory function in 3 weeks. Discussion. The evidence is too insufcient to establish the best decision on IMV to the management of ILD.


2021 ◽  
Author(s):  
Jiyun Cui ◽  
Jie Liu ◽  
Jing Wang ◽  
Meng Lv ◽  
Chunyan Xing ◽  
...  

Abstract Background: Previous studies suggested that plasma B-type natriuretic peptide (BNP) level was often elevated in patients with acute exacerbations of chronic obstructive pulmonary disease (AECOPD) and was associated with increased mortality. However, most studies did not consider the fact that conditions such as coronary ischemic heart disease can also increase BNP level. Therefore, we aimed to explore the association between BNP level and in-hospital mortality in patients with AECOPD without a history of coronary ischemic heart disease.Methods: In this retrospective cohort study, patients who were diagnosed with AECOPD using International Statistical Classification of Diseases and Related Health Problems, Nineth Revision (ICD-9 codes) between January 2017 and December 2019. All data were obtained from electronic patient files and medical data intelligence platform of Jinan Central Hospital. BNP level was determined within 24 hours after admission, and the value was log2 transformed. The primary outcome was in-hospital mortality, and the secondary outcome was a composite outcome of in-hospital mortality or invasive mechanical ventilation.Results: A total of 300 patients were included in this study. Univariate cox regression analysis showed that the unadjusted HRs of the primary and secondary outcomes were 1.85 (95% CI, 1.39-2.47) and 1.45 (95% CI, 1.20-1.75), respectively. After adjustment for age, sex, past medical history, smoking status, drinking status, CURB65 (Confusion, Urea > 7mmol/L, Respiratory rate≥30/min, Blood pressure systolic < 90 mmHg or diastolic <60 mmHg and age > 65 years), arterial partial pressure of O2(PaO2), the adjusted HRs of the primary and secondary outcomes were 3.65 (95% CI, 2.54-5.26) and 1.43 (95% CI, 1.14-1.97), respectively. The results of subgroup analysis by age, sex, and lung function were robust. This study was retrospective, so there was no clinical trial registration.Conclusions: The plasma log2BNP level was significantly associated with in-hospital mortality and a composite outcome of in-hospital mortality or invasive mechanical ventilation.


2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Lídia Miranda Barreto ◽  
◽  
Cecilia Gómez Ravetti ◽  
Thiago Bragança Athaíde ◽  
Renan Detoffol Bragança ◽  
...  

Abstract Background The usefulness of non-invasive mechanical ventilation (NIMV) in oncohematological patients is still a matter of debate. Aim To analyze the rate of noninvasive ventilation failure and the main characteristics associated with this endpoint in oncohematological patients with acute respiratory failure (ARF). Methods A ventilatory support protocol was developed and implemented before the onset of the study. According to the PaO2/FiO2 (P/F) ratio and clinical judgment, patients received supplementary oxygen therapy, NIMV, or invasive mechanical ventilation (IMV). Results Eighty-two patients were included, average age between 52.1 ± 16 years old; 44 (53.6%) were male. The tested protocol was followed in 95.1% of cases. Six patients (7.3%) received IMV, 59 (89.7%) received NIMV, and 17 (20.7%) received oxygen therapy. ICU mortality rates were significantly higher in the IMV (83.3%) than in the NIMV (49.2%) and oxygen therapy (5.9%) groups (P < 0.001). Among the 59 patients who initially received NIMV, 30 (50.8%) had to eventually be intubated. Higher SOFA score at baseline (1.35 [95% CI = 1.12–2.10], P = 0.007), higher respiratory rate (RR) (1.10 [95% CI = 1.00–1.22], P = 0.048), and sepsis on admission (16.9 [95% CI = 1.93–149.26], P = 0.011) were independently associated with the need of orotracheal intubation among patients initially treated with NIMV. Moreover, NIMV failure was independently associated with ICU (P < 0.001) and hospital mortality (P = 0.049), and mortality between 6 months and 1 year (P < 0.001). Conclusion The implementation of a NIMV protocol is feasible in patients with hematological neoplasia admitted to the ICU, even though its benefits still remain to be demonstrated. NIMV failure was associated with higher SOFA and RR and more frequent sepsis, and it was also related to poor prognosis.


2019 ◽  
Vol 8 (10) ◽  
pp. 1621 ◽  
Author(s):  
de Miguel-Diez ◽  
Jiménez-García ◽  
Hernández-Barrera ◽  
Puente-Maestu ◽  
Girón-Matute ◽  
...  

(1) Background: We examine trends (2001–2015) in the use of non-invasive ventilation (NIV) and invasive mechanical ventilation (IMV) among patients hospitalized for acute exacerbation of chronic obstructive pulmonary disease (AE-COPD). (2) Methods: Observational retrospective epidemiological study, using the Spanish National Hospital Discharge Database. (3) Results: We included 1,431,935 hospitalizations (aged ≥40 years) with an AE-COPD. NIV use increased significantly, from 1.82% in 2001–2003 to 8.52% in 2013–2015, while IMV utilization decreased significantly, from 1.39% in 2001–2003 to 0.67% in 2013–2015. The use of NIV + invasive mechanical ventilation (IMV) rose significantly over time (from 0.17% to 0.42%). Despite the worsening of clinical profile of patients, length of stay decreased significantly over time in all types of ventilation. Patients who received only IMV had the highest in-hospital mortality (IHM) (32.63%). IHM decreased significantly in patients with NIV + IMV, but it remained stable in those receiving isolated NIV and isolated IMV. Factors associated with use of any type of ventilatory support included female sex, lower age, and higher comorbidity. (4) Conclusions: We found an increase in NIV use and a decline in IMV utilization to treat AE-COPD among hospitalized patients. The IHM decreased significantly over time in patients who received NIV + IMV, but it remained stable in patients who received NIV or IMV in isolation


Medwave ◽  
2020 ◽  
Vol 20 (10) ◽  
pp. e8066-e8066
Author(s):  
Miguel Araujo ◽  
Paola Ossandón ◽  
Ana María Abarca ◽  
Ana María Menjiba ◽  
Ana María Muñoz

Introduction Since the beginning of the COVID-19 pandemic, extensive research has been done on the prognosis of patients with SARS-CoV-2 associated with age, biodemographic conditions, comorbidities, social factors, clinical parameters, inflammatory blood markers, coagulation, biochemical and blood gas parameters, among others. Few studies have addressed this problem in Latin America, so it is of interest to know how the disease plays out in this region. Objective The purpose of our study is to evaluate the course of COVID-19 in patients admitted to a tertiary center in Chile and to assess factors measured close to hospital admission that may be associated with death and the need for invasive mechanical ventilation. Methods We did a retrospective cohort study at Indisa Clinic in Santiago, Chile. We included all patients aged 15 years and older hospitalized between March 11 and July 25, 2020. Hospital mortality and severity of the cases were analyzed, and logistic regression models were applied to identify predictors of outcome variables. Results The sample included 785 subjects. The mean age was 59 years, 59% were men, and 61.3% had comorbidities. Forty five per cent required intensive care, and 24% invasive mechanical ventilation. The overall hospital fatality rate was 18.7%. In intensive care patients, the case fatality was 32.1%, and in those who received invasive mechanical ventilation, it was 59.4%. Independent risk factors for death included age (odds ratio 1.09; 95% confidence interval: 1.07 to 1.12), diabetes (1.68; 1.06 to 2.67), chronic lung disease (2.80; 1.48 to 5.28), increased C-reactive protein, creatinine, and ferritin. No association with sex, public health insurance, history of heart disease, oxygen saturation upon admission, or D-dimer was found. Similar factors were predictors of invasive mechanical ventilation. Discussion The prognosis and predictive factors in this cohort of patients hospitalized in Chile for COVID-19 were comparable to those reported in similar studies from higher-income countries. Male sex was not associated with a poor prognosis in this group of patients.


Author(s):  
Ghada Sobhy Ibrahim ◽  
Buthaina M. Alkandari ◽  
Islam Ahmed Abo Shady ◽  
Vikash K. Gupta ◽  
Mohsen Ahmed Abdelmohsen

Abstract Background Since late 2019, COVID-19 infection has quickly spread substantially in all countries, forcing the appropriation of noteworthy lockdown and social separating measures. It has been considered as a pandemic by the World Health Organization. Positive pressure ventilation is a non-physiological and invasive intervention that can be lifesaving in COVID-19 patients. Similar to any other interventions, it can cause its own danger and complications as it can prompt ventilator-induced lung injury and barotrauma. The aim of the work was to identify the incidence of invasive mechanical ventilation complication in COVID-19 pneumonias, and to describe patient characteristics and patterns of barotrauma in COVID-19 patients. Results This retrospective study included 103 patients with COVID-19 pneumonia, 76 males and 27 females are on invasive mechanical ventilation. Their mean age was 56.6, ranged from 21 to 85 years old. Barotraumas event type in the studied patients, (NB: one or multiple barotrauma events occurring on the same day were considered as single event (95/103 patients-92.23%), while separate multiple events (8/103 patients-7.77%) were recorded when occurring separated by at least 24 h). Single barotrauma events were subdivided into: one event (67/95 patients—70.53%), & multiple events (28/95 patients—29.47%). The mean interval between invasive mechanical ventilation and developing barotraumas was 3–7 days included 41 patients (39.98%). We revealed a strong prevalence of COVID-19 IMV complication with worsening prognosis and subsequent higher death rates in elderly smoker or obese males, as well as those suffering from ARDS. Past medical history (hypertension, DM, chronic renal or cardiac disease) or surgical history of CABG was more liable for these types of complications. Conclusion Patients with COVID-19 pneumonia were more liable to the higher incidence of barotraumas with presence of predisposition and high risk factors. In general, an outstanding bad prognostic outcome and a significantly high mortality rate prevailed in COVID-19 patients associated with mechanically ventilated patients.


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