Abstract
Angioaccess sites to enable repetitive vascular punctures for hemodialysis include temporary or permanent indwelling catheters, port access devices, autogenous vessels in native arteriovenous fistulas, or non-autogenous material in prosthetic arteriovenous grafts. While complications such as thrombosis and infection are well recognized, lethal hemorrhage is much less commonly encountered. In this paper, selected cases are reported to demonstrate the range of situations that may be encountered at autopsy, including hemorrhage from a catheter in a case of suicide, and hemorrhage from an arteriovenous fistula and an arteriovenous graft. Predisposing factors to hemorrhage include coagulation abnormalities due to anticoagulant therapy or to underlying renal failure, stenosis or obstruction that has resulted in increased intraluminal pressure, local sepsis, repeated trauma from venesection and hypertension. An approach to such cases should include careful evaluation of the medical history and death scene, with dissection at autopsy of catheters, grafts and fistulas to demonstrate the condition of anastomosis sites, and the presence or absence of ruptures, perforations, stenoses, and/or thromboses. Histologic sampling of autologous fistula walls and surrounding soft tissues may reveal evidence of sepsis.
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We would like to thank the South Australian State Coroner for permission to report selected details of these cases.
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Byard, R.W., James, R.A. Forensic issues in cases of fatal hemorrhage from arteriovenous dialysis access sites. Forens Sci Med Pathol 3, 128–132 (2007). https://doi.org/10.1007/s12024-007-0003-8
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DOI: https://doi.org/10.1007/s12024-007-0003-8