Background and Objectives. In this retrospective report the aim was to present the experience about bleeding characteristics and management of minor surgeries in rare bleeding disorders (RBDs).

Methods. Twenty-six patients were included; with Factor (F) V, FV+VIII, VII, FXI deficiency and afibrinogenemia. Six of the patients were asymptomatic.

Results. Fifty-three percent of the patients suffered from mucosal bleeding. Life-threatening bleedings were observed only in the patients with afibrinogenemia and good hemostatic control could only be provided with plasma-derived (pd)-fibrinogen concentrate. Twelve of the patients had undergone 17 minor surgeries. In the patients with FVII and FXI deficiencies with plasma F:C activity between 20-47%, there was a history of uneventful tooth extractions, circumcisions and a pilonidal sinus operation performed without any replacement treatment, whereas one patient with plasma F:C activity of FVII 47% had a history of poor hemostatic control during an adeno-tonsillectomy operation. Although some of these patients were asymptomatic to be on the safe side, minor operations were performed with preoperative administration of one dose of (pd)-fibrinogen concentrate to one afibrinogenemia patient, recombinant active FVII (rFVIIa) to 2 FVII deficient patients and fresh frozen plasma (FFP) to 3 FXI deficient and 1 FVII deficient patients plus postoperatively tranexamic acid (TXA) for 5-7 days. Only with one dose of the replacement therapy just before surgeries good hemostatic control was achieved and none of them had bleeding neither during nor after the surgeries.

Conclusion. We suggest that minor operations must be performed with preoperative replacement therapies plus 5-7 days of antifibrinolytics under close observation of the hematologist and the surgeon.

Keywords: blood coagulation disorders, minor surgical procedures, rare diseases