| • No bleeding (corresponding to Type 0 BARC) • Minor (corresponding to Type 1 BARC) - Immediate post-extraction bleeding from socket which can be controlled on a first attempt with pressure pack and/or with other local haemostatic measures that are widely available in primary dental care settings (suturing, oxidized cellulose, gelatin or collagen sponge etc) or - Mild oozing from post-extraction socket (blood-tinged saliva) after patient leaving the dental setting which does not need special intervention to be controlled. Examples may include self-treating of oozing by pressing down with gauze for several minutes or cases of a patient seeking dental/medical attention but no special intervention is needed other than reassurance. • Clinically significant (corresponding to Type 2 BARC) - Persisting immediate post-extraction bleeding from socket which cannot be controlled on a first attempt with local haemostatic measures in primary dental setting, prompting evaluation or management in secondary or specialized healthcare setting but it does not fit the criteria for life-threatening bleeding or - Any clinically overt sign of recurrent aggressive post-extraction bleeding, formation of “liver clot”, large facial ecchymosis or persisting aggressive oozing continuing for more than 12 h requiring intervention by a healthcare professional to be controlled but does not fit the criteria for life-threatening bleeding • Life-threatening (corresponding to Type 3 BARC) Any immediate or late post-extraction bleeding complication with clinical, laboratory or/and imaging findings with specific healthcare provider responses: - Overt bleeding plus haemoglobin drop of 3 to < 5 g/dL* (provided haemoglobin drop is related to bleed) or any transfusion with overt bleeding (corresponding to Type 3a BARC) - Overt bleeding plus haemoglobin drop ≥ 5 g/dL* (provided haemoglobin drop is related to bleed) or bleeding requiring intravenous vasoactive agents or bleeding requiring surgical intervention for control (e.g. surgical evacuation of hematomas of deep head and neck spaces that may compromise airway, ligation or embolization of vessels to control bleeding) (corresponding to Type 3b BARC) • Fatal (corresponding to Type 5 BARC) - Probable fatal bleeding; no autopsy or imaging confirmation but clinically suspicious (corresponding to Type 5a BARC) - Definite fatal bleeding; overt bleeding or autopsy or imaging confirmation (corresponding to Type 5b BARC) |
| *Corrected for transfusion (1 U packed red blood cells or 1 U whole blood expected to increase haemoglobin by 1 g/dL). BARC: Bleeding Academic Research Consortium38 |