Langenbeck's Archives of Surgery

, Volume 397, Issue 8, pp 1275–1282 | Cite as

Risk of wound hematoma at carotid endarterectomy under dual antiplatelet therapy

  • Andreas OldagEmail author
  • Stephan Schreiber
  • Stefanie Schreiber
  • Hans-Jochen Heinze
  • Frank Meyer
  • Mathias Weber
  • Zuhir Halloul
  • Michael Goertler
Original Article


Background and purpose

This study aims to assess perioperative incidence of wound hematoma and bleeding in patients who underwent carotid endarterectomy (CEA) under dual antiplatelet therapy.


Consecutive patients with initial CEA receiving aspirin, clopidogrel, or a combination of both were subjected to standard patch endarterectomy. Postoperative wound hematoma was assessed as moderate (subcutaneous bleeding, nonspace-occupying hematoma, and oozing suture bleeding) or severe, i.e., needing operative re-exploration.


Six hundred eighty-four (80.9 %) patients with one of the three types of antiplatelet therapy out of 844 patients registered from 1995 to 2010 were enrolled. Wound hematoma occurred in 27 of 112 (24.1 %) patients under combined aspirin and clopidogrel, 33 of 162 (20.4 %) under clopidogrel, and 48 of 410 (11.7 %) under aspirin. Relative risk compared to aspirin was 2.4 (95 % CI, 1.4 to 4.1) for aspirin and clopidogrel and 1.9 (95 % CI, 1.2 to 3.1) for clopidogrel. Severe space-occupying hematoma needing operative re-exploration occurred in four (3.6 %) patients under aspirin and clopidogrel, seven (4.3 %) under clopidogrel, and five (1.2 %) under aspirin. Corresponding relative risks were 3.0 (95 % CI, 0.8 to 11.4) for aspirin and clopidogrel and 3.7 (95 % CI, 1.1 to 11.7) for clopidogrel. Relative risks remained without relevant change after adjustment for potentially confounding variables.


Dual antiplatelet therapy with combined aspirin and clopidogrel as well as clopidogrel is associated with an increased incidence of perioperative wound hematoma compared to aspirin but on an acceptable low level of incidence. The latter may be achieved by adapting operative procedures to more intensive antiplatelet regimes.


Carotid endarterectomy Dual antiplatelet therapy Perioperative complications Wound hematoma 



We are grateful to Jane Heisinger for assistance in preoperative sonographic examinations and Annette Glaenzel for CEA register documentation.

Conflicts of interest



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Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • Andreas Oldag
    • 1
    Email author
  • Stephan Schreiber
    • 1
  • Stefanie Schreiber
    • 1
  • Hans-Jochen Heinze
    • 1
  • Frank Meyer
    • 2
  • Mathias Weber
    • 2
  • Zuhir Halloul
    • 2
  • Michael Goertler
    • 1
  1. 1.Vascular and Stroke Center, Department of NeurologyOtto-von-Guericke University of MagdeburgMagdeburgGermany
  2. 2.Vascular and Stroke Center, Department of General, Abdominal and Vascular SurgeryOtto-von-Guericke University of MagdeburgMagdeburgGermany

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