A mini-review of procedural sedation and analgesia in the emergency department

Safety of procedural sedation in emergency department settings among the adult population: a systematic review and meta-analysis of randomized controlled trials

Procedural sedation and analgesia (PSA) are a common practice in emergency departments (EDs), aiming to alleviate pain, anxiety, and discomfort during various medical procedures. We have undertaken a systematic review and meta-analysis with the aim of assessing the incidence of adverse events associated with PSA, including those related to individual drugs and various drug combinations. The study adhered to PRISMA guidelines for a systematic review and meta-analysis of adverse events in ED sedation. A comprehensive search strategy was employed across ten databases, supplemented by searches on clinicaltrials.gov and manual reviews of reference lists. Data extraction focused on medication administration and adverse events. The study considered four types of adverse events: cardiac, respiratory, gastrointestinal, and neurological. Only randomized controlled trials (RCTs) focusing on PSA administered to adult patients within the ED setting were included. The statistical analysis employed OpenMeta Analyst to conduct a one-arm meta-analysis, with findings presented alongside their corresponding 95% Confidence Intervals. Forest plots were constructed to combine and evaluate results, and sensitivity analyses were performed to identify sources of heterogeneity. From a literature search of 4246 records, 32 RCTs were deemed suitable for this meta-analysis. The analysis included 6377 procedural sedations. The most common adverse event was hypoxia, with an incidence rate of 78.5 per 1000 sedations (95% CI = 77.5-133.5). This was followed by apnea and hypotension, with incidence rates of 31 (95% CI = 19.5-41.8) and 28.1 (95% CI = 17.4-38.9) per 1,000 sedations, respectively. Agitation and vomiting each occurred in 15.6 per 1,000 sedations (95% CI = 8.7-22.6). Severe adverse events were rare, with bradycardia observed in 16.7 per 1,000 sedations, laryngospasm in 2.9 per 1,000 sedations (95% CI =  - 0.1 to 6), intubation in 10.8 per 1,000 sedations (95% CI = 4-17), and aspiration in 2.7 per 1,000 sedations (95% CI =  - 0.3 to 5.7). Ketamine is found to be the safest option in terms of respiratory adverse events, with the lowest rates of apnea and hypoxia, making it the least respiratory depressant among the evaluated drugs. Etomidate has the least occurrence of hypotension when used alone. Propofol has the highest incidence of hypotension when used alone and ranks second in hypoxia-related adverse events after midazolam. Using combinations of sedating agents, such as propofol and ketamine, has been found to offer several advantages over single drugs, especially in reducing adverse events like vomiting, intubation difficulty, hypotension, bradycardia, and laryngospasm. The combination significantly reduces the incidence of hypotension compared to using propofol or ketamine individually. Despite the regular use of procedural sedation, it can sometimes lead to serious adverse events. Respiratory issues like apnea and hypoxia, while not common, do occur more often than cardiovascular problems such as hypotension. However, the least frequent respiratory complications, which can also pose a threat to life, include laryngospasm, aspiration, and intubation. These incidents are extremely rare.

No-anesthesia for Colles fracture

BACKGROUND

This study aims to measure the perceived pain during the reduction of Colles fracture without anesthesia in both children and adults. It describes the process and reveals duration for reduction, total hospital stays and compares them with the same procedure under hematoma block.

METHODS

We employed the Wong-Baker FACES pain scale to assess pain reduction in 135 adults and 98 pediatric patients undergoing Colles fracture reduction with or without hematoma block. We also measured the time required for the reduction and the overall process.

RESULTS

For fracture reduction without anesthesia, Wong-Baker FACES scores were 9.2 for children and 8.7 for adults. With hematoma block, scores dropped to 7.5 for children and 5.2 for adults with only a 10 min addition to the hospital stay. Pain scores among pediatric patients exhibited moderate to strong negative correlations with age. The reduction maneuver itself took an average of 5 s.

CONCLUSIONS

The reduction of a Colles fracture is nearly instantaneous, making the reduction without anesthesia tolerable. Pediatric patients don't benefit from hematoma block as much as adult counterparts. It significantly reduced pain scores by 1.7 points in children and 3.5 points in adults.

LEVEL OF EVIDENCE

Level I, Randomized Controlled Trial.

Safety and Efficacy of Intranasal Ketamine for Minor Pediatric Procedures: A Systemic Literature Review

Compared to intravenous anesthetics, intranasal medication for sedation is a less invasive approach. Intranasal ketamine (IK) is a widely used medication for procedural sedation. Hence, a systematic review was conducted with the aim of evaluating the safety and efficacy of IK among pediatric patients used for procedural sedation. For this purpose, a literature search was conducted on PubMed, Web of Science, and MEDLINE. A total of 247 search results appeared after running the developed query and eight articles passed through the inclusion and exclusion criteria and were included in the study. Most of the studies used 4 to 7 mg/kg dose of IK for pediatric patients. It was found that there was a moderate correlation between the age and dose of IK. Similarly, the dose of IK also had a direct and moderate correlation with the onset of sedation. Regarding the reported side effects, most of the studies reported nausea and vomiting as side effects of IK. Hence, it could be concluded from the study findings that effective sedation can be achieved by using 4 to 7 mg/kg dose of IK. The reported side effects of IK were minor while parental satisfaction with the drug was very high. Therefore, it can be concluded that the use of IK for procedural sedation among pediatric patients is safe and effective.

Incidence of adverse events for procedural sedation and analgesia for cardioversion using thiopental in elderly patients: a multicenter prospective observational study

Aim

The incidence and characteristics of thiopental-related adverse events (AEs) in elderly patients during procedural sedation and analgesia (PSA) have not been well studied. We aimed to characterize thiopental-related AE in elderly patients during PSA and compare the incidence of AE in elderly patients with non-elderly adults.

Methods

This is a secondary analysis of the Japanese Procedural Sedation and Analgesia Registry (JPSTAR). We included all adult patients who received thiopental for PSA in the emergency departments and excluded patients who received concomitant sedative(s) in addition to thiopental or patients with missing body weight data. We compared the incidence of AE between the non-elderly (18-64 years) and elderly groups (≥65 years).

Results

The JPSTAR had data on 379 patients who received thiopental for PSA and included 311 patients for analysis. Most (222/311, 71.3%) were elderly. Cardioversion was the most common reason for PSA (96.1%). The AE incidence between groups overall was similar, however, hypoxia was significantly more frequent in the elderly compared with the non-elderly group (10.3% versus 2.2%; adjusted odds 5.63, 95% confidence interval 1.27-25.0). The initial and total doses of thiopental were significantly lower in the elderly group than in the non-elderly group (1.95 mg/kg versus 2.21 mg/kg and 2.33 mg/kg versus 2.93 mg/kg, respectively).

Conclusions

Although elderly patients received lower doses of thiopental, hypoxic events were significantly more frequent in this group compared with the non-elderly patients. However, the AE incidence was similar.

Challenges for interprofessional simulation-based sedation training courses: Mini review

Sedation for invasive procedures is given for various clinical purposes to patients of all ages worldwide. However, sedation is a continuum to general anesthesia and contains severe inherent risks leading to mortality. Providing a simulation-based sedation training course (SEDTC) to various medical staff could be an effective strategy to improve patient and medical safety associated with sedation. The SEDTC generally includes basic airway management such as upper airway obstruction release or rapid response action toward excessive sedation, utilizing problem-based learning or simulators. However, participation alone in the SEDTC can only achieve Level 1 (reaction) or 2 (learning) in the Kirkpatrick model. A patient safety improvement of Level 3 (transfer) or 4 (result) of the Kirkpatrick model can be achieved when all members related to sedation undergo experiential learning and reach a consensus. Accordingly, in-hospital interprofessional SEDTC focusing on a resilience approach is essential to achieve effective sedation patient safety in Level 3 or 4 of the Kirkpatrick model.

Success rate of anterior shoulder dislocation reduction by emergency physicians: a retrospective cohort study

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