PMID- 9774117 OWN - NLM STAT- MEDLINE DCOM- 19981021 LR - 20190815 IS - 1523-6838 (Electronic) IS - 0272-6386 (Linking) VI - 32 IP - 4 DP - 1998 Oct TI - Changes in coagulation and fibrinolysis in the postoperative period immediately after kidney transplantation in patients receiving OKT3 or cyclosporine A as induction therapy. PG - 575-81 AB - Different immunosuppressive agents, in particular OKT3, have been implicated as causative factors in the risk for renal thrombosis in the period immediately after kidney transplantation. Also, in different types of vascular surgery, a state similar to hypercoagulation has been reported. To assess the extent to which OKT3, cyclosporine A (CsA), and surgery itself affect coagulation and fibrinolysis, a study was conducted of 20 patients divided into two groups: group A, 10 patients received OKT3 (first dose during the induction of anesthesia); and group B, 10 patients received CsA (first dose at least 2 hours before transplantation). Basal determinations and determinations at 2, 4, and 24 hours after the induction of anesthesia were made. No differences were found between the groups with respect to the clinical and usual coagulation parameters. The following were studied in both groups: (1) markers of coagulation activity (prekallikrein [PKK] levels and formation of thrombin-antithrombin complexes [TATc]), (2) inhibitors and suppressors of hemostasis (antithrombin III [AT-III] and protein C [PC] activity), (3) markers of fibrinolysis activation (levels of plasminogen [PLG] and of alpha2-antiplasmin [alpha2-APL]), and (4) markers of endothelial damage (tissue plasminogen activator [TPA] and thrombomodulin [TMD]). In both groups, an important formation of TATc was observed early, together with a decrease in PKK levels and consumption of both AT-III and PC, which reached their lowest levels at 24 hours. This points to an activation of coagulation through the intrinsic route and a secondary consumption of hemostasis inhibitors, both possibly caused by surgery. A consumption of PLG and alpha2-APL was also observed, reflecting stimulation of the fibrinolytic system and a physiological response to the activation of coagulation. A greater release of endothelial TPA was only observed in the patients receiving OKT3 (P < 0.0001), possibly signaling endothelial activation. It is concluded that surgical stress could be the major factor triggering the alterations seen in hemostasis and their possible consequences. FAU - Deira, J AU - Deira J AD - Service of Nephrology, University Hospital, Salamanca, Spain. FAU - Alberca, I AU - Alberca I FAU - Lerma, J L AU - Lerma JL FAU - Martin, B AU - Martin B FAU - Tabernero, J M AU - Tabernero JM LA - eng PT - Journal Article PL - United States TA - Am J Kidney Dis JT - American journal of kidney diseases : the official journal of the National Kidney Foundation JID - 8110075 RN - 0 (Blood Coagulation Factors) RN - 0 (Immunosuppressive Agents) RN - 0 (Muromonab-CD3) RN - 83HN0GTJ6D (Cyclosporine) SB - IM MH - Adult MH - Blood Coagulation/*drug effects MH - Blood Coagulation Factors/drug effects MH - Cyclosporine/*adverse effects MH - Female MH - Fibrinolysis/drug effects MH - Humans MH - Immunosuppressive Agents/*adverse effects MH - Kidney Diseases/chemically induced MH - Kidney Transplantation/*adverse effects/methods MH - Male MH - Middle Aged MH - Muromonab-CD3/*adverse effects MH - Postoperative Complications/*chemically induced MH - Renal Artery Obstruction/chemically induced MH - Thrombosis/chemically induced MH - Time Factors EDAT- 1998/10/17 00:00 MHDA- 1998/10/17 00:01 CRDT- 1998/10/17 00:00 PHST- 1998/10/17 00:00 [pubmed] PHST- 1998/10/17 00:01 [medline] PHST- 1998/10/17 00:00 [entrez] AID - S027263869800273X [pii] AID - 10.1016/s0272-6386(98)70019-8 [doi] PST - ppublish SO - Am J Kidney Dis. 1998 Oct;32(4):575-81. doi: 10.1016/s0272-6386(98)70019-8.