Fillmore W Jonathan, Leavitt Bryce D, Arce Kevin
Resident, Division of Oral and Maxillofacial Surgery, Department of Surgery, Mayo Clinic, Rochester, MN.
J Oral Maxillofac Surg. 2013 Oct;71(10):1647-52. doi: 10.1016/j.joms.2013.05.011. Epub 2013 Aug 8.
To characterize bleeding risk and management of bleeding in thrombocytopenic patients undergoing dental extraction.
This retrospective cohort study included 68 patients with hematologic disease and concomitant thrombocytopenia undergoing dental extractions. The inclusion criterion was a platelet count of 100,000/μL or less at the time of consultation or extraction. Patients using anticoagulation therapy were excluded from the study. Predictors measured were age, gender, platelet count, platelet transfusion before or during surgery, local hemostatic measurements at the time of surgery (absorbable hemostat or antifibrinolytic rinse), number of teeth extracted, diagnosis, and extraction type. The primary outcome was postoperative bleeding requiring intervention. A secondary outcome was surgical site infection. Descriptive and bivariate statistics were computed and the P value was set at .05. No logistic regression was used based on the distribution of outcomes.
Sixty-eight patients underwent extraction of 200 teeth. Five (7.4%) had postoperative bleeding that was always controlled with routine intervention. Mean platelet count was 44,647/μL. Bleeding was more frequent with lower platelet levels (P = .048). Thirty-two patients received platelet transfusion and 26 received local measures. Platelet transfusion and local hemostatic measures had no effect on bleeding outcomes.
Surgical and routine extractions are safe procedures in patients with thrombocytopenia, and postoperative bleeding is typically well handled with simple local measures. The benefits of pre- or intraoperative platelet transfusion are unclear in this population. Likewise, the benefit of prophylactic local hemostatic measures is unclear and should be based on the surgeon's discretion and experience.
描述血小板减少症患者拔牙时的出血风险及出血处理方法。
这项回顾性队列研究纳入了68例患有血液系统疾病并伴有血小板减少症且接受拔牙手术的患者。纳入标准为就诊或拔牙时血小板计数为10万/μL或更低。正在使用抗凝治疗的患者被排除在研究之外。所测量的预测因素包括年龄、性别、血小板计数、手术前或手术期间的血小板输注、手术时的局部止血措施(可吸收止血剂或抗纤维蛋白溶解冲洗液)、拔牙数量、诊断及拔牙类型。主要结局是术后出血需要干预。次要结局是手术部位感染。计算了描述性和双变量统计数据,P值设定为0.05。基于结局分布未使用逻辑回归分析。
68例患者共拔除200颗牙齿。5例(7.4%)出现术后出血,均通过常规干预得到控制。平均血小板计数为44,647/μL。血小板水平越低,出血越频繁(P = 0.048)。32例患者接受了血小板输注,26例采取了局部措施。血小板输注和局部止血措施对出血结局无影响。
血小板减少症患者进行外科拔牙和常规拔牙是安全的手术,术后出血通常通过简单的局部措施就能得到很好的处理。对于这一人群,术前或术中输注血小板的益处尚不清楚。同样,预防性局部止血措施的益处也不明确,应根据外科医生的判断和经验来决定。