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Splenic platelet kinetics and platelet production after major reconstructive vascular surgery.

Artikel i vetenskaplig tidskrift
Författare Hans Wadenvik
Per Örtenwall
Jack Kutti
Bo Risberg
Publicerad i Acta medica Scandinavica
Volym 223
Nummer/häfte 2
Sidor 147-52
ISSN 0001-6101
Publiceringsår 1988
Publicerad vid Medicinska institutionen
Sidor 147-52
Språk en
Länkar www.ncbi.nlm.nih.gov/entrez/query.f...
Ämnesord Aged, Aorta, Abdominal, surgery, Blood Platelets, physiology, Blood Vessel Prosthesis, adverse effects, Cell Cycle, Cell Survival, Female, Humans, Indium Radioisotopes, diagnostic use, Male, Middle Aged, Platelet Count, Spleen, blood supply, cytology, radionuclide imaging
Ämneskategorier Klinisk medicin

Sammanfattning

By using 111In-labelled platelets and dynamic gamma camera scintigraphy, platelet production rate and intrasplenic platelet kinetics were determined in 13 patients at 1 and 4 months after aortic reconstructive vascular surgery with implantation of dacron prostheses. A significant decrease in platelet production rate and venous platelet count was recorded over time after surgery. Irrespective of whether the exchangeable splenic platelet pool was estimated from initial recovery of platelet-bound radioactivity or from compartmental analysis, the size of this pool was significantly lower at the first study; a change in intrasplenic platelet transit time accounted for the observed difference. Platelet mean life-span increased over time after surgery but the difference between the duplicate studies was not statistically significant. It can be concluded that there is a reduction of platelet production rate and venous platelet count over time after major reconstructive vascular surgery. The early postoperative elevation in the platelet count is mainly the result of an increased platelet production and to a lesser degree due to redistribution of platelets between the splenic platelet pool and general circulation.

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