Time to intubation with McGrath ™ videolaryngoscope versus direct laryngoscope in powered air-purifying respirator: a randomised controlled trial

INTRODUCTION

During the coronavirus disease 2019 (COVID-19) pandemic, multiple guidelines have recommended videolaryngoscope (VL) for tracheal intubation. However, there is no evidence that VL reduces time to tracheal intubation, and this is important for COVID-19 patients with respiratory failure.

METHODS

To simulate intubation of COVID-19 patients, we randomly assigned 28 elective surgical patients to be intubated with either McGrath™ MAC VL or direct laryngoscope (DL) by specialist anaesthetists who donned 3M™ Jupiter™ powered air-purifying respirators (PAPR) and N95 masks. The primary outcome was time to intubation.

RESULTS

The median time to intubation was 61 s (interquartile range [IQR] 37-63 s) and 41.5 s (IQR 37-56 s) in the VL and DL groups, respectively ( P = 0.35). The closest mean distance between the anaesthetist and patient during intubation was 21.6 ± 4.8 cm and 17.6 ± 5.3 cm in the VL and DL groups, respectively ( P = 0.045). There were no significant differences in the median intubation difficulty scale scores, proportion of successful intubations at the first laryngoscopic attempt and proportion of intubations requiring adjuncts. All the patients underwent successful intubation with no adverse event.

CONCLUSION

There was no significant difference in the time to intubation of elective surgical patients with either McGrath™ VL or DL by specialist anaesthetists who donned PAPR and N95 masks. The distance between the anaesthetist and patient was significantly greater with VL. When resources are limited or disrupted during a pandemic, DL could be a viable alternative to VL for specialist anaesthetists.

Pericapsular nerve group (PENG) block for early pain management of elderly patients with hip fracture: a single-center double-blind randomized controlled trial

BACKGROUND

The pericapsular nerve group block (PENG) is a novel technique that blocks the articular branches of the hip joint. This study aimed to compare its effectiveness to a sham block in elderly patients with hip fractures.

METHOD

A randomized double-blind controlled trial was conducted in elderly patients with intertrochanteric and neck of femur fractures. Patients were randomized to receive either PENG block or a sham block. Postblock, systemic analgesia was titrated using a standardized protocol of acetaminophen, oral morphine or patient-controlled analgesia. The primary outcome was the dynamic pain score (Numerical Rating Scale 0-10) at 30 min postblock. Secondary outcomes included pain scores at multiple other time points and 24-hour opioid consumption.

RESULTS

60 patients were randomized and 57 completed the trial (PENG n=28, control n=29). Patients in PENG group had significantly lower dynamic pain scores at 30 min compared with control group (median (IQR) 3 (0.5-5) vs 5 (3-10), p<0.01). For the secondary outcomes, dynamic pain scores were lower in PENG group at 1 hour (median (IQR) 2 (1-3.25) vs 5 (3-8), p<0.01) and 3 hours postblock (median (IQR) 2 (0-5) vs 5 (2-8), p<0.05). Patients in PENG group had lower 24-hour opioid consumption (median (IQR) oral morphine equivalent dose 10 (0-15) vs 15 (10-30) mg, p<0.05).

CONCLUSION

PENG block provided effective analgesia for acute traumatic pain following hip fracture. Further studies are required to validate the superiority of PENG blocks over other regional techniques.

TRIAL REGISTRATION NUMBER

NCT04996979.

Epidemiology and outcomes of hospital-acquired bloodstream infections in intensive care unit patients: the EUROBACT-2 international cohort study

PURPOSE

In the critically ill, hospital-acquired bloodstream infections (HA-BSI) are associated with significant mortality. Granular data are required for optimizing management, and developing guidelines and clinical trials.

METHODS

We carried out a prospective international cohort study of adult patients (≥ 18 years of age) with HA-BSI treated in intensive care units (ICUs) between June 2019 and February 2021.

RESULTS

2600 patients from 333 ICUs in 52 countries were included. 78% HA-BSI were ICU-acquired. Median Sequential Organ Failure Assessment (SOFA) score was 8 [IQR 5; 11] at HA-BSI diagnosis. Most frequent sources of infection included pneumonia (26.7%) and intravascular catheters (26.4%). Most frequent pathogens were Gram-negative bacteria (59.0%), predominantly Klebsiella spp. (27.9%), Acinetobacter spp. (20.3%), Escherichia coli (15.8%), and Pseudomonas spp. (14.3%). Carbapenem resistance was present in 37.8%, 84.6%, 7.4%, and 33.2%, respectively. Difficult-to-treat resistance (DTR) was present in 23.5% and pan-drug resistance in 1.5%. Antimicrobial therapy was deemed adequate within 24 h for 51.5%. Antimicrobial resistance was associated with longer delays to adequate antimicrobial therapy. Source control was needed in 52.5% but not achieved in 18.2%. Mortality was 37.1%, and only 16.1% had been discharged alive from hospital by day-28.

CONCLUSIONS

HA-BSI was frequently caused by Gram-negative, carbapenem-resistant and DTR pathogens. Antimicrobial resistance led to delays in adequate antimicrobial therapy. Mortality was high, and at day-28 only a minority of the patients were discharged alive from the hospital. Prevention of antimicrobial resistance and focusing on adequate antimicrobial therapy and source control are important to optimize patient management and outcomes.

Preparing for a COVID-19 pandemic: a review of operating room outbreak response measures in a large tertiary hospital in Singapore

The coronavirus disease 2019 (COVID-19) outbreak has been designated a public health emergency of international concern. To prepare for a pandemic, hospitals need a strategy to manage their space, staff, and supplies so that optimum care is provided to patients. In addition, infection prevention measures need to be implemented to reduce in-hospital transmission. In the operating room, these preparations involve multiple stakeholders and can present a significant challenge. Here, we describe the outbreak response measures of the anesthetic department staffing the largest (1,700-bed) academic tertiary level acute care hospital in Singapore (Singapore General Hospital) and a smaller regional hospital (Sengkang General Hospital). These include engineering controls such as identification and preparation of an isolation operating room, administrative measures such as modification of workflow and processes, introduction of personal protective equipment for staff, and formulation of clinical guidelines for anesthetic management. Simulation was valuable in evaluating the feasibility of new operating room set-ups or workflow. We also discuss how the hierarchy of controls can be used as a framework to plan the necessary measures during each phase of a pandemic, and review the evidence for the measures taken. These containment measures are necessary to optimize the quality of care provided to COVID-19 patients and to reduce the risk of viral transmission to other patients or healthcare workers.

Videolaryngoscope-Assisted Double-Lumen Endotracheal Tube Intubation in an Awake Patient With Known Difficult Airway and Bronchopleural Fistula: A Case Report

Awake endotracheal intubation is the technique of choice to secure the airway when both mask ventilation and intubation are anticipated to be difficult. We present a case of a patient with a known difficult airway, bronchopleural fistula (BPF), and acute respiratory distress syndrome (ARDS) who was intubated with a double-lumen endotracheal tube (DL ETT) under awake condition using a videolaryngoscope. Independent lung ventilation (ILV) was instituted because of the BPF. The patient was treated successfully for ARDS and discharged home. To our knowledge, this is the first reported case of successful videolaryngoscope-assisted DL ETT intubation in an awake patient.

Pruritus and postoperative nausea and vomiting after intrathecal morphine in spinal anaesthesia for caesarean section: Prospective cohort study

Background:

Spinal anaesthesia is a common anaesthetic technique for caesarean sections. Neuraxial opioids such as intrathecal morphine may cause common adverse effects (pruritus, post-operative nausea and vomiting).

Objectives:

We investigated the incidence, severity and need for treatment of pruritus and post-operative nausea and vomiting following administration of intrathecal morphine in spinal anaesthesia for caesarean section at KK Women’s and Children’s Hospital, Singapore.

Methods:

We conducted a prospective study involving 124 parturients who received intrathecal morphine in spinal anaesthesia for caesarean section from October 2012 to October 2014.

Results:

Seventy patients (56.5%) had moderate or severe pruritus (score 4–10), while 54 patients (43.5%) had no or mild pruritus (score 0–3). Mean (SD) value of the worst pruritus score reported on a scale of 0–10 was 4 (2.59). Only seven out of the 124 patients (5.6%) required treatment for pruritus. With respect to distress and bother from itching in the past 24 hours on a score of 0–4, the mean score reported was 1.7 (1.23). Fourteen (11.2%) patients reported vomiting, dry-retching and nausea. Six (4.8%) patients had nausea that interfered with activities of daily living. Four (3.2%) patients had clinically significant post-operative nausea and vomiting. Seven (5.6%) patients received anti-emetics. The average Overall Benefit of Analgesia Score was 3.8 (SD 2.6, min–max: 0–15). The average (SD) maternal satisfaction with pain relief and side effects was 84.9% (9.9%).

Conclusion:

There is a high incidence of pruritus, with most women reporting moderate to severe pruritus. The incidence of post-operative nausea and vomiting is low, and women reported good maternal satisfaction.