Direct extubation onto high-flow nasal cannulae post-cardiac surgery versus standard treatment in patients with a BMI ≥30: a randomised controlled trial
Autor: | Adrian G. Barnett, Amanda Corley, Amy J. Spooner, John F. Fraser, Taressa Bull |
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Rok vydání: | 2014 |
Předmět: |
Male
medicine.medical_specialty Pulmonary Atelectasis Catheters medicine.medical_treatment Atelectasis Critical Care and Intensive Care Medicine law.invention Body Mass Index Randomized controlled trial law Oxygen therapy Intensive care medicine Intubation Humans Respiratory function Postoperative Period Cardiac Surgical Procedures Aged business.industry Standard treatment Oxygen Inhalation Therapy Middle Aged medicine.disease Cardiac surgery Surgery Anesthesia Airway Extubation Female business |
Zdroj: | Intensive care medicine. 41(5) |
ISSN: | 1432-1238 |
Popis: | Patients with a body mass index (BMI) ≥30 kg/m(2) experience more severe atelectasis following cardiac surgery than those with normal BMI and its resolution is slower. This study aimed to compare extubation of patients post-cardiac surgery with a BMI ≥30 kg/m(2) onto high-flow nasal cannulae (HFNC) with standard care to determine whether HFNC could assist in minimising post-operative atelectasis and improve respiratory function.In this randomised controlled trial, patients received HFNC or standard oxygen therapy post-extubation. The primary outcome was atelectasis on chest X-ray. Secondary outcomes included oxygenation, respiratory rate (RR), subjective dyspnoea, and failure of allocated treatment.One hundred and fifty-five patients were randomised, 74 to control, 81 to HFNC. No difference was seen between groups in atelectasis scores on Days 1 or 5 (median scores = 2, p = 0.70 and p = 0.15, respectively). In the 24-h post-extubation, there was no difference in mean PaO2/FiO2 ratio (HFNC 227.9, control 253.3, p = 0.08), or RR (HFNC 17.2, control 16.7, p = 0.17). However, low dyspnoea levels were observed in each group at 8 h post-extubation, median (IQR) scores were 0 (0-1) for control and 1 (0-3) for HFNC (p = 0.008). Five patients failed allocated treatment in the control group compared with three in the treatment group [Odds ratio 0.53, (95 % CI 0.11, 2.24), p = 0.40].In this study, prophylactic extubation onto HFNC post-cardiac surgery in patients with a BMI ≥30 kg/m(2) did not lead to improvements in respiratory function. Larger studies assessing the role of HFNC in preventing worsening of respiratory function and intubation are required. |
Databáze: | OpenAIRE |
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