Haemorrhage：We suggest simultaneous volume replacement and closed chest compressions.（Evidence level:C；Recommendation grade:2).

Haemorrhage：lf there is no return of spontaneous circulation, despite adequate volume therapy.open chest cardiac massage may be considered.（Evidence level:C；Recommendation grade:2).

In patients with exsanguinating infra-diaphragmatic haemorrhage uncontrollable byother means we suggest immediate use of resuscitative endovascular balloonocclusion of the aorta.（Evidence level:C；Recommendation grade:2).

We suggest the use of either resuscitative thoracotomy with cross-clamping of the descending aorta or resuscitative endovascular balloon occlusion of the aorta.（Evidence level:C；Recommendation grade:2).

Pregnant patients should be educated and counseled about the risks of maternal cannabis use on the fetus/neonate. ( Level of certainty: Moderate，Grade A)

Cannabis use during pregnancy and immediate postpartum period should be discouraged. ( Level of certainty: Moderate，GradeB)

Consideration should be given to adjusting induction and maintenance doses of anesthetic agents based on clinical presentation and timing of the last consump-tion of cannabis in surgical and procedural patients. ( Level of certainty: Low，GradeC)

There is insufficient evidence to recom-mend for or against the use of intraoperative EEG monitoring in patients who have taken cannabinoids. ( Level of certainty: Low，GradeI)

Based on the studies reviewed, patients taking only oral cannabis do not need any adjustments in venti-latory settings. ( Level of certainty: Low，GradeC)

Adjustment of ventilatory settings should be considered since obstructive lung disease- like patterns may be associated with chronic cannabis consumption by inhalation, particularly in patients with comorbid conditions that are asso-ciated with an increased risk of pulmonary pathology .( Level of certainty: Low，GradeC)