[A new bone anchored hemodialysis access]. / Neuartiger knochenverankerter Hämodialysezugang.
Ther Umsch
; 72(8): 519-24, 2015 Aug.
Article
en De
| MEDLINE
| ID: mdl-26227980
ABSTRACT
When classic arteriovenous fistulas or grafts fail, dialysis patients have a vital requirement for a catheter to ensure vascular access. Permanent central venous catheters penetrate the cervical and thoracic soft tissues and the skin without rigid fixation. The infection rate for such devices is high, often requiring explantation. Bone anchored hearing aids are an established treatment in patients with conductive hearing loss. The implant is firmly fixed on the temporal bone and the abutment permanently penetrates the skin. Severe infections requiring explantation are very rare. We suppose that one of the main reasons for the low complication rate is the firm fixation of the implant to the temporal bone, which minimizes the movement of the skin relative to the underlying bone. Based on the experience with implantable hearing devices we developed a percutaneous bone anchored port fixed to the skull in the region of the temporal bone. Such a bone anchored port could be a beneficial alternative to conventional central venous catheters for patients undergoing hemodialysis. In the course of the development process we investigated the individual anatomy to locate the correct implantation site with sufficient bone thickness; we studied screw stability in bone; we developed the titanium implant that houses the port system as well as the surgical tools and procedure for save implantation; we tested flow rate, leak tightness and purification on mockups; we defined the Seldinger-insertion of the catheter into the internal jugular vein via a small neck incision. Our results show the technical feasibility of a temporal bone anchored port and form the basis of a now-approved clinical pilot study.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Catéteres de Permanencia
/
Diálisis Renal
/
Anclas para Sutura
/
Dispositivos de Acceso Vascular
/
Fallo Renal Crónico
Límite:
Humans
Idioma:
De
Revista:
Ther Umsch
Año:
2015
Tipo del documento:
Article