European Journal of Emergency Medicine最新文献

Background and importance: Effective and safe procedural sedation is pivotal for the quality of care in the emergency department (ED).

Objectives: The aim of this work is to evaluate the feasibility, effectiveness, and safety procedural sedation performed by emergency physicians in the ED setting in Italy.

Design/setting and participants/intervention: Following a specific training of the staff and with the adoption of a standardized protocol, a registry of procedural sedations performed on adult patients in 10 Italian EDs was compiled from 2019 to 2022; the following basic data were recorded: demographic and clinical information, procedure's indication, administered drugs, predefined, and actual sedation level.

Outcome measures and analysis: Effectiveness was evaluated considering three parameters: successful completion of the procedure, absence of procedural pain, and no memory of the procedure; adverse events were classified according to the World Society of Intravenous Anaesthesia criteria and evaluated taking into account clinical and procedural variables.

Main results: The study included 1349 patients (median age 68 years, male 64%). Sedation was performed for electrical cardioversion (66.3%), orthopedic procedures (23.2%), or other procedures (10.5%). Propofol (67%) and midazolam (24.2%) were the two most frequently used sedatives and 70.6% of the patients achieved a deep level of sedation.Procedural failure occurred in 4.6% of cases, with no significant differences between procedure types or drugs used. Recall of the procedure and procedural related pain were reported by 2.9% and 2.6% of patients, respectively, and were more frequently related to orthopedic procedures, midazolam use - if compared with propofol, and lower levels of sedation.A total of 135 adverse events were observed, with an overall incidence of 10%: 38 minimal adverse events (2.8%), 38 minor adverse events (2.8%), and 59 moderate adverse events (4.4%). There were no adverse events requiring unplanned hospital admission or escalation of care, and no sentinel adverse events were observed. All adverse events were resolved with simple and noninvasive treatments. The incidence of adverse events was greater with higher American Society of Anesthesiologists class, intermediate/difficult airway, and deeper sedation levels.

Conclusion: Procedural sedation performed in Italian EDs by emergency physicians, with propofol as main sedative, was effective and safe, and has comparable adverse event rates with previous international studies.

Background and importance: Elderly patients often have atypical clinical presentations. Lactate measurement on arrival at the Emergency Department (ED) could be useful to identify elderly patients with a bad prognosis.

Objective: The study aimed to investigate the relationship between serum lactate determined at ED arrival and the probability of inhospital mortality and intensive care (ICU) admission in elderly patients.

Design: Retrospective multipurpose registry. Secondary analysis of the EDEN cohort (Elderly Department and Elder Needs).

Settings and participants: All patients ≥65 years attending 52 Spanish EDs during 2 week and in whom serum lactate was determined at ED arrival.

Outcome measures and analysis: The relationship between serum lactate values and the risk of inhospital all-cause death and transfer from the ED to the ICU was assessed by unadjusted and adjusted logistic regression assuming linearity and restricted cubic spline models assuming nonlinearity.

Results: The cohort included 25 557 patients. The 3024 patients in whom lactate was measured were analyzed. The median age was 81 years (74-87), 1506 (27.2%) were women, 591 (19.5%) had serious comorbidities, 475 (15.7%) severe dependency, and 648 (21.4%) dementia. Death occurred during hospitalization in 217 patients (7.2%) and 53 patients (1.75%) were admitted to the ICU. Serum lactate values were nonlinear related to inhospital mortality and ICU admission. Serum lactate >3.1 mmol/L [odds ratio (OR): 1.60, 95% confidence interval (CI): 1.02-2.50] for inhospital mortality and 3.2 mmol/L (OR: 2.83, 95% CI: 1.03-6.79) for ICU admission were associated with significantly increased ORs in the adjusted models.

Conclusion: Serum lactate measured at ED arrival has a significant and exponential relationship with inhospital mortality and ICU admission in elderly patients.

Acute dyspnea is a common symptom whose management is challenging in prehospital settings. Point-of-care ultrasound (POCUS) is increasingly accessible because of device miniaturization. To assess the contribution of POCUS in the prehospital management of patients with acute nontraumatic dyspnea, we performed a systematic review on nontrauma patients of any age managed in the prehospital setting for acute dyspnea and receiving a POCUS examination. We searched seven databases and gray literature for English-language studies published from January 1995 to November 2023. Two independent reviewers completed the study selection, data extraction, and risk of bias assessment. The primary outcome was the assessment of the contribution of POCUS to feasibility, diagnostic, therapeutic, prognosis, patient referral, and transport vector modification. Twenty-three studies were included. The risk of bias assessment identified 3 intermediate-risk, 18 serious-risk, and 2 critical-risk studies. Three studies reported moderate to excellent feasibility for lung POCUS, and three studies reported poor to mediocre feasibility for cardiac POCUS. The median duration of the POCUS examination was less than 5 minutes (six studies). POCUS improved diagnostic identification (seven studies). The diagnostic accuracy of POCUS was excellent for pneumothorax (sensitivity = 100%, specificity = 100%, two studies), very good for acute heart failure (sensitivity = 71-100%, specificity = 72-95%, eight studies), good for pneumonia (sensitivity = 88%, specificity = 59%, one study), and moderate for pleural effusion (sensitivity = 26-53%, specificity = 83-92%, two studies). Treatment was modified in 11 to 54% of the patients (seven studies). POCUS had no significant effect on patient prognosis (two studies). POCUS contributed to patient referrals and transport vectors in 51% (four studies) and 25% (three studies) of patients, respectively. The evidence supports the use of POCUS for managing acute nontraumatic dyspnea in the prehospital setting in terms of feasibility, overall diagnostic contribution, and, particularly, lung ultrasound for acute heart failure diagnosis. Moreover, POCUS seems to have a therapeutic contribution. There is not enough evidence supporting the use of POCUS for pneumonia, pleural effusion, pneumothorax, chronic obstructive pulmonary disease, or asthma exacerbation diagnosis, nor does it support prognostic, patient referral, and transport vector contribution. A high level of evidence is lacking and needed.

Background and importance: Patients living with social deprivation, and those with experiences of violence, substance misuse, mental ill-health and homelessness are known to use emergency departments (EDs) more often. It is not known whether a programme of social support initiated during ED attendance may lead to a reduction in healthcare use.

Objectives: The objective of this study is to determine the change in emergency, inpatient and outpatient healthcare use following a social support programme, Navigator, initiated during an ED attendance.

Design: Retrospective before-and-after study.

Settings and participants: Adult patients ≥16 years, attending EDs in the West of Scotland from 14th September 2016 to 10th March 2023, with a Navigator programme encounter.

Intervention or exposure if any: The Navigator social support programme, delivered by trained support workers, initiated during ED attendance, and targeting patients affected by issues including violence, substance misuse, mental ill-health, domestic abuse and homelessness.

Outcome measures and analysis: Healthcare use rates in the 365 days following intervention, as change compared to those in the 365 days prior to the intervention. The primary outcome was the number of ED attendances in the year following intervention compared with the year prior to intervention. Secondary outcomes included inpatient admissions, inpatient bed days, outpatient appointments and outpatient appointments where the patient did not attend. Changes in use rates were analysed with negative binomial regression and reported as incidence rate ratios for interpretation as percentage change. Analysis was repeated for a subgroup of frequent attenders to the ED.

Main results: Of 1421 Navigator programme encounters, 1056 were included for analysis. Median attendance in the year prior to intervention was 3 [interquartile range (IQR) 1-5], and in the year following intervention was 2 (IQR 0-4). Negative binomial regression demonstrated that in the year following Navigator intervention, there was a 29% (95% confidence interval: 24-33%) reduction in ED attendances.

Conclusion: The Navigator programme was associated with reduced emergency and acute healthcare use in the year following intervention, with increased scheduled outpatient care. There is the potential for a social support programme, delivered from the ED, to change patterns of healthcare use, and future work should consider prospectively assessing the impact of such an intervention.

The objective of this review is to compare high-flow nasal cannula (HFNC) oxygen (High flow oxygen) and noninvasive ventilation (NIV) for the management of acute respiratory failure secondary to suspected or confirmed acute heart failure (AHF). A comprehensive and relevant literature search of MEDLINE, Web of Science, and the Cochrane Library was conducted using Medical Subject Heading and Free text terms from January 2010 to March 2024. All randomized clinical trials and observational retrospective and prospective studies reporting adult patients with acute respiratory failure due to suspected or confirmed AHF and comparing HFNC to NIV were included. Primary outcome included treatment failure, as a composite outcome including early termination to the allocated treatment, need for in-hospital intubation or mortality, or the definition used in the study for treatment failure if adequate. Secondary outcomes included change in respiratory rate and dyspnea intensity after treatment initiation, patient comfort, invasive mechanical ventilation requirement, and day-30 mortality. Six of the 802 identified studies were selected for final analysis, including 572 patients (221 assigned to high flow and 351 to NIV). Treatment failure rate was 20% and 13% in the high flow oxygen and NIV groups, respectively [estimated odds ratio (OR): 1.7, 95% confidence interval (95% CI): 0.9-3.1] in randomized studies and 34% and 16% in the high flow oxygen and NIV groups, respectively (OR: 3.1, 95% CI: 0.7-13.5), in observational studies. Tracheal intubation requirement was 7% and 5% of patients in the HFNC and NIV groups, respectively (OR: 1.4, 95% CI: 0.5-3.5) in randomized studies, and 20% and 9% in the high flow oxygen and NIV group, respectively (OR: 2.1, 95% CI: 0.5-9.4) in observational studies. Mortality was 13% and 8% in the high flow oxygen and the NIV groups, respectively (OR: 1.8, 95% CI: 0.8-1.1) in randomized studies and 14% and 9% in the high flow oxygen and the NIV groups, respectively (OR: 1.4, 95% CI: 0.5-3.7) in observational studies. Compared with NIV, high flow oxygen was not associated with a higher risk of treatment failure during initial management of patients with acute respiratory failure related to suspected or confirmed AHF.

The objective of this review was to assess the diagnostic accuracy of bedside-focused transthoracic echocardiography (TTE) in acute atraumatic thoracic aortic syndrome in adults. We performed a systematic review and meta-analysis of publications that described the use of bedside-focused TTE on adults presenting to emergency care settings with suspected atraumatic thoracic aortic syndrome. Studies were identified using keyword and MeSH on relevant databases as well as grey literature, followed by abstract screening and study selection by two independent reviewers. Sixteen studies over six decades were included in the meta-analysis ( n  = 4569 patients). The prevalence of type A thoracic aortic dissection was 11% (range 1.4-45.7%) and type B dissection was 7% (range 1.8-30.55%). Pooled sensitivity and specificity for type A dissection (through direct TTE visualisation of an intimal flap) were 89% [95% confidence interval (CI), 82-94%] and 92% (95% CI, 88-95%), respectively. For type B dissection, pooled sensitivity was 65% (95% CI, 45-80%) and specificity was 100% (95% CI, 0.69-100%). Regarding indirect TTE signs, pooled sensitivities and specificities were 64% (5.2-98.2%) and 94% (92-96.1%), respectively for aortic valve regurgitation, 92% (54-99.2%) and 87% (62-97%) for thoracic aortic aneurysm and 39% (33.8-45%) and 94% (92-95%) for pericardial effusion. In this systematic review and meta-analysis, bedside-focused TTE has high specificity for type A and B dissection, a moderate to high sensitivity for type A but poor for type B, and unclear diagnostic accuracy for intramural haematoma and penetrating aortic ulcer.