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Risk of rebleeding after dentoalveolar surgery in patients receiving anticoagulant therapy: a prospective study
1050 ICOMS 2011—Abstracts: Oral Papers
84 The management of traumatic injuries to teeth and their supporting structures: a five year audit
85 Incidence of venous thromboembolism in oral and maxillofacial surgery: a retrospective analysis
S. Aniruth 1,2,∗ , J. Morkel 2 , H. Borchardt 3 1 Private Practice, Netcare Blaauwberg Hospital, South Africa 2 Oral and Maxillofacial Surgery, University of the Western Cape, South Africa 3 Medicross Tableview, Cape Town, South Africa
T. Forouzanfar Oral and Maxillofacial surgery, VU University Medical Center, Amsterdam, The Netherlands
Introduction: Definitive management of traumatic injuries to the teeth and their supporting structures are often referred to the maxillofacial and oral surgeon for treatment of the acute phase. Further management (and trauma to the teeth alone) and follow up of the patient is then often taken over by a dental colleague Ethics and permissions: All patients were informed of the study undertaken and written permission was obtained for the use of their clinical information. Where clinical photographs were used, consents for the use of such images were obtained from the patient or guardian as applicable. All permissions were granted freely and with no remuneration to the patients. Patients and method: Patients who were definitively treated for traumatic injuries to their teeth and supporting structures at a private Maxillofacial and Oral Surgery practice from the period June 2005 to May 2011 were included in the study. Their surgical treatment outcome was evaluated via clinical and radiographic assessments The patient’s satisfaction of outcomes, surgical care and dental follow up care, was assessed with the aid of a visual analogue scale. Results: A proforma was developed for the capture of the data and the findings were analysed. The findings of this study will be presented in a Powerpoint format at the 20th International Conference on Oral and Maxillofacial Surgery in Santiago, Chile in November 2011. Conclusion: A team approach to the management of traumatic injuries of the teeth and supporting structures can result in excellent success and patient satisfaction. Conflict of interest: None declared. doi:10.1016/j.ijom.2011.07.085
To investigate retrospectively the incidence and risk factors of venous thromboembolism (VTE) in patients undergoing maxillofacial surgery. Data were obtained from patients treated between January 2005 and June 2006 in the Department of Oral and Maxillofacial Surgery of the VU University Medical Center, Amsterdam. Patients records were reviewed on complaints and information related to deep venous thrombosis (DVT) and pulmonary embolism (PE). Furthermore, all patients completed a questionnaire on complaints related to DVT and PE. The patients were classified according to a risk classification, and the incidence of reported DVT and PE was calculated. The study population comprised 411 patients with a mean age of 32 (±17) years. Median postoperative followup period was 53 (23–639) days. None of the patients received any form of thromboembolism prophylaxis. The incidence of VTE in the study group was 0.5%. Logistic regression analysis demonstrated a relationship between body mass index and hospital stay with thromboembolism (p < 0.05). Patients undergoing pre-implant surgery with bone graft proved to be at risk (p = 0.07). Although the incidence of VTE in oral and maxillofacial surgeries seems to be low, thromboembolism prophylaxis may be justified in patients with clear potential risk factors. Conflict of interest: None declared. doi:10.1016/j.ijom.2011.07.086
86 Risk of rebleeding after dentoalveolar surgery in patients receiving anticoagulant therapy: a prospective study F.I. Broekema ∗ , B. Van Minnen, J. Jansma, R.R.M. Bos Oral and Maxillofacial Surgery, University Medical Center Groningen, Groningen, The Netherlands
Objectives: Continuation of anticoagulant therapy in patients undergoing dentoalveolar surgery is recommended because of the risk for thromboembolic events. Little information is available about the inci-
dence of rebleeding in these patients. The objective of this study was to evaluate the incidence of rebleeding after dentoalveolar surgery in patients receiving anticoagulant therapy. Materials and methods: Seventy patients were included from which 48 used thrombocyte aggregation inhibitors and 22 used coumarin derivatives. The surgery consisted of dental extraction, apex resection or implant placement. The patients received standard postoperative care and the wounds were closed with absorbable sutures. Tranexamic acid mouthwash was used postoperatively by the patients receiving coumarin therapy. Results: The group of patients that used coumarin derivatives had a mean INR of 2.6 (1.9–3.4). In this group three mild bleedings occurred (14%). In the group that used thrombocyte aggregation inhibitors three mild bleedings were reported (6.3%). All bleedings were controlled by the patients themselves with a compressive gauze. In none of the patients a severe bleeding requiring medical intervention was seen. Conclusion: These preliminary results indicate that it is safe to perform dentoalveolar surgery in patients receiving anticoagulant therapy. However, patients need to be adequately instructed on the management of rebleeding at home. Conflict of interest: None declared. doi:10.1016/j.ijom.2011.07.087
87 Is there evidence that barrier membranes prevent bone resorption in autologous bone grafts during the healing period? An update P. Gielkens ∗ , B. Stegenga Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, Groningen, The Netherlands
Objectives: In 2007 a systematic review was published that evaluated the available evidence that barrier membranes prevent bone resorption in autologous bone grafts (Gielkens et al., IJOMI; 2007). It was concluded that membranes show some preventive effect on graft resorption. Aim: Aim of the present study was to update this review up to October 2010 and search for new evidence. The primary outcome measure was ‘bone resorption’. Materials and methods: Medline was searched from October 2005 until October 2010. Search-terms used were: ‘bone resorption’, ‘bone transplantation’ and
84 The management of traumatic injuries to teeth and their supporting structures: a five year audit
85 Incidence of venous thromboembolism in oral and maxillofacial surgery: a retrospective analysis
S. Aniruth 1,2,∗ , J. Morkel 2 , H. Borchardt 3 1 Private Practice, Netcare Blaauwberg Hospital, South Africa 2 Oral and Maxillofacial Surgery, University of the Western Cape, South Africa 3 Medicross Tableview, Cape Town, South Africa
T. Forouzanfar Oral and Maxillofacial surgery, VU University Medical Center, Amsterdam, The Netherlands
Introduction: Definitive management of traumatic injuries to the teeth and their supporting structures are often referred to the maxillofacial and oral surgeon for treatment of the acute phase. Further management (and trauma to the teeth alone) and follow up of the patient is then often taken over by a dental colleague Ethics and permissions: All patients were informed of the study undertaken and written permission was obtained for the use of their clinical information. Where clinical photographs were used, consents for the use of such images were obtained from the patient or guardian as applicable. All permissions were granted freely and with no remuneration to the patients. Patients and method: Patients who were definitively treated for traumatic injuries to their teeth and supporting structures at a private Maxillofacial and Oral Surgery practice from the period June 2005 to May 2011 were included in the study. Their surgical treatment outcome was evaluated via clinical and radiographic assessments The patient’s satisfaction of outcomes, surgical care and dental follow up care, was assessed with the aid of a visual analogue scale. Results: A proforma was developed for the capture of the data and the findings were analysed. The findings of this study will be presented in a Powerpoint format at the 20th International Conference on Oral and Maxillofacial Surgery in Santiago, Chile in November 2011. Conclusion: A team approach to the management of traumatic injuries of the teeth and supporting structures can result in excellent success and patient satisfaction. Conflict of interest: None declared. doi:10.1016/j.ijom.2011.07.085
To investigate retrospectively the incidence and risk factors of venous thromboembolism (VTE) in patients undergoing maxillofacial surgery. Data were obtained from patients treated between January 2005 and June 2006 in the Department of Oral and Maxillofacial Surgery of the VU University Medical Center, Amsterdam. Patients records were reviewed on complaints and information related to deep venous thrombosis (DVT) and pulmonary embolism (PE). Furthermore, all patients completed a questionnaire on complaints related to DVT and PE. The patients were classified according to a risk classification, and the incidence of reported DVT and PE was calculated. The study population comprised 411 patients with a mean age of 32 (±17) years. Median postoperative followup period was 53 (23–639) days. None of the patients received any form of thromboembolism prophylaxis. The incidence of VTE in the study group was 0.5%. Logistic regression analysis demonstrated a relationship between body mass index and hospital stay with thromboembolism (p < 0.05). Patients undergoing pre-implant surgery with bone graft proved to be at risk (p = 0.07). Although the incidence of VTE in oral and maxillofacial surgeries seems to be low, thromboembolism prophylaxis may be justified in patients with clear potential risk factors. Conflict of interest: None declared. doi:10.1016/j.ijom.2011.07.086
86 Risk of rebleeding after dentoalveolar surgery in patients receiving anticoagulant therapy: a prospective study F.I. Broekema ∗ , B. Van Minnen, J. Jansma, R.R.M. Bos Oral and Maxillofacial Surgery, University Medical Center Groningen, Groningen, The Netherlands
Objectives: Continuation of anticoagulant therapy in patients undergoing dentoalveolar surgery is recommended because of the risk for thromboembolic events. Little information is available about the inci-
dence of rebleeding in these patients. The objective of this study was to evaluate the incidence of rebleeding after dentoalveolar surgery in patients receiving anticoagulant therapy. Materials and methods: Seventy patients were included from which 48 used thrombocyte aggregation inhibitors and 22 used coumarin derivatives. The surgery consisted of dental extraction, apex resection or implant placement. The patients received standard postoperative care and the wounds were closed with absorbable sutures. Tranexamic acid mouthwash was used postoperatively by the patients receiving coumarin therapy. Results: The group of patients that used coumarin derivatives had a mean INR of 2.6 (1.9–3.4). In this group three mild bleedings occurred (14%). In the group that used thrombocyte aggregation inhibitors three mild bleedings were reported (6.3%). All bleedings were controlled by the patients themselves with a compressive gauze. In none of the patients a severe bleeding requiring medical intervention was seen. Conclusion: These preliminary results indicate that it is safe to perform dentoalveolar surgery in patients receiving anticoagulant therapy. However, patients need to be adequately instructed on the management of rebleeding at home. Conflict of interest: None declared. doi:10.1016/j.ijom.2011.07.087
87 Is there evidence that barrier membranes prevent bone resorption in autologous bone grafts during the healing period? An update P. Gielkens ∗ , B. Stegenga Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, Groningen, The Netherlands
Objectives: In 2007 a systematic review was published that evaluated the available evidence that barrier membranes prevent bone resorption in autologous bone grafts (Gielkens et al., IJOMI; 2007). It was concluded that membranes show some preventive effect on graft resorption. Aim: Aim of the present study was to update this review up to October 2010 and search for new evidence. The primary outcome measure was ‘bone resorption’. Materials and methods: Medline was searched from October 2005 until October 2010. Search-terms used were: ‘bone resorption’, ‘bone transplantation’ and