Cochrane Review Group

Anaesthesia

125 systematic reviews in Anaesthesia ask 1,463 questions. 13.5% have no studies to answer them, 21% rest on very low certainty evidence and 21.5% reach moderate or high certainty.

Reviews

125

Questions

1,463

current versions

No studies

13.5%

Moderate or high

21.5%

No studies 197 · 13.5%Ungraded 203 · 13.9%Very low 307 · 21%Low 441 · 30.1%Moderate 245 · 16.7%High 70 · 4.8%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Search questions in Anaesthesia

Thinnest evidence

All no studies and very low questions

Question	Effect	Evidence	Status / GRADE
Summary of findings ‐ Erector spinae plane block vs intercostal nerve block Mean difference in postoperative pain intensity at rest 24 hours postoperatively (VAS 0 to 10) · adults undergoing surgery with general anaesthesia Erector spinae plane block for postoperative pain (2024) · Cochrane	no estimate extracted	2 studies · 131 participants	Very low
Summary of findings ‐ Erector spinae plane block vs intercostal nerve block Rates of block‐related adverse events · adults undergoing surgery with general anaesthesia Erector spinae plane block for postoperative pain (2024) · Cochrane	RR 0.09 [0.04, 2.28]	3 studies · 181 participants	Very low
Summary of findings ‐ Erector spinae plane block vs epidural analgesia Mean difference in postoperative pain intensity at rest 24 hours postoperatively (VAS 0 to 10) · adults undergoing surgery with general anaesthesia Erector spinae plane block for postoperative pain (2024) · Cochrane	no estimate extracted	2 studies · 81 participants	Very low
Hyperangulated videolaryngoscopy vs direct laryngoscopy Dental trauma · adults undergoing tracheal intubation Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation (2022) · Cochrane	RR 0.51 [0.16, 1.59]	30 studies · 3497 participants	Very low
Hyperangulated videolaryngoscopy vs direct laryngoscopy Time for tracheal intubation · adults undergoing tracheal intubation Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation (2022) · Cochrane	no estimate extracted	59 studies · 6644 participants	Very low
Channelled videolaryngoscopy vs direct laryngoscopy Successful first attempt · adults undergoing tracheal intubation Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation (2022) · Cochrane	RR 1.1 [1.05, 1.15]	47 studies · 5210 participants	Very low
Channelled videolaryngoscopy vs direct laryngoscopy Dental trauma · adults undergoing tracheal intubation Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation (2022) · Cochrane	RR 0.52 [0.13, 2.12]	29 studies · 2375 participants	Very low
Channelled videolaryngoscopy vs direct laryngoscopy Time for tracheal intubation · adults undergoing tracheal intubation Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation (2022) · Cochrane	no estimate extracted	57 studies · 5676 participants	Very low
Macintosh‐style videolaryngoscopy vs direct laryngoscopy Dental trauma · adults undergoing tracheal intubation Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation (2022) · Cochrane	RR 0.68 [0.16, 2.89]	18 studies · 2297 participants	Very low
Macintosh‐style videolaryngoscopy vs direct laryngoscopy Time for tracheal intubation · adults undergoing tracheal intubation Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation (2022) · Cochrane	no estimate extracted	35 studies · 4061 participants	Very low
Intervention NR Time to first analgesic request (mean time in minutes) · adults undergoing surgery Pre‐emptive and preventive NSAIDs for postoperative pain in adults undergoing all types of surgery (2021) · Cochrane	no estimate extracted	8 studies · 410 participants	Very low
Intervention NR Adverse events · adults undergoing surgery Pre‐emptive and preventive NSAIDs for postoperative pain in adults undergoing all types of surgery (2021) · Cochrane	no estimate extracted	NR	No studies

Reviews 125

Rocuronium versus succinylcholine for rapid sequence induction intubation

Tran, DTT, Newton, EK, et al. · Cochrane Database of Systematic Reviews · 2015

Anaesthesia

Thinnest evidence

Reviews 125

Rocuronium versus succinylcholine for rapid sequence induction intubation

Stimulation of the wrist acupuncture point PC6 for preventing postoperative nausea and vomiting

Lidocaine for preventing postoperative sore throat

Peribulbar versus retrobulbar anaesthesia for cataract surgery

Sub‐Tenon's anaesthesia versus topical anaesthesia for cataract surgery

Sedation versus general anaesthesia for provision of dental treatment to patients younger than 18 years

Non‐pharmacological interventions for assisting the induction of anaesthesia in children

Ultrasound guidance for upper and lower limb blocks

Cooling for cerebral protection during brain surgery

Early versus late removal of the laryngeal mask airway (LMA) for general anaesthesia

The effects of high perioperative inspiratory oxygen fraction for adult surgical patients

Nitrous oxide‐based techniques versus nitrous oxide‐free techniques for general anaesthesia

Noninvasive positive pressure ventilation for acute respiratory failure following upper abdominal surgery

Warming of intravenous and irrigation fluids for preventing inadvertent perioperative hypothermia

Regional analgesia for improvement of long‐term functional outcome after elective large joint replacement

Preoperative inspiratory muscle training for postoperative pulmonary complications in adults undergoing cardiac and major abdominal surgery

Adrenaline with lidocaine for digital nerve blocks

Alpha‐2 adrenergic agonists for the prevention of shivering following general anaesthesia

Pulse oximetry for perioperative monitoring

Inhaled nitric oxide for the postoperative management of pulmonary hypertension in infants and children with congenital heart disease

Incentive spirometry for prevention of postoperative pulmonary complications in upper abdominal surgery

Effects of sevoflurane versus other general anaesthesia on emergence agitation in children

Positive end‐expiratory pressure (PEEP) during anaesthesia for prevention of mortality and postoperative pulmonary complications

Anaesthetic techniques for risk of malignant tumour recurrence

Continuous positive airway pressure (CPAP) during the postoperative period for prevention of postoperative morbidity and mortality following major abdominal surgery