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Activated platelet ...
Activated platelet aggregation is transiently impaired also by a reduced dose of protamine
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- Olsson, Anki, Medicine doktor (författare)
- Blekinge Tekniska Högskola,Institutionen för hälsa
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- Alfredsson, Joakim (författare)
- Linköpings universitet,Avdelningen för kardiovaskulär medicin,Medicinska fakulteten,Region Östergötland, Kardiologiska kliniken US
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- Thelander, M. (författare)
- Blekinge Hosp, SWE,Blekinge Hosp, Sweden
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- Svedjeholm, Rolf (författare)
- Linköpings universitet,Avdelningen för kardiovaskulär medicin,Medicinska fakulteten,Region Östergötland, Thorax-kärlkliniken i Östergötland
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- Sanmartin Berglund, Johan, Professor (författare)
- Blekinge Tekniska Högskola,Institutionen för hälsa,Blekinge Inst Technol, Dept Hlth Sci, Karlskrona, Sweden.
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- Berg, Sören (författare)
- Linköpings universitet,Avdelningen för kardiovaskulär medicin,Medicinska fakulteten,Region Östergötland, Thorax-kärlkliniken i Östergötland
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- Olsson, Ann-Kristin (författare)
- Linköpings universitet,Institutionen för medicin och hälsa,Medicinska fakulteten,Blekinge Inst Technol, Sweden; Blekinge Hosp, Sweden
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(creator_code:org_t)
- 2019-09-03
- 2019
- Engelska.
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Ingår i: Scandinavian Cardiovascular Journal. - : TAYLOR & FRANCIS LTD. - 1401-7431 .- 1651-2006. ; 53:6, s. 355-360
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https://liu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Objectives: Protamine reduces platelet aggregation after cardiopulmonary bypass (CPB). We studied the inhibitory effect of a reduced protamine dose, the duration of impaired platelet function and the possible correlation to postoperative bleeding. Design: Platelet function was assessed by impedance aggregometry in 30 patients undergoing cardiac surgery with CPB at baseline, before protamine administration, after 70% and 100% of the calculated protamine dose, after 20 minutes and at arrival to the intensive care unit. Adenosine diphosphate (ADP), thrombin receptor activating peptide-6 (TRAP), arachidonic acid (AA) and collagen (COL) were used as activators. Blood loss was measured during operation and three hours after surgery. Results are presented as median (25th-75th percentile). Results: Platelet aggregation decreased markedly after the initial dose of protamine (70%) with all activators; ADP 89 (71-110) to 54 (35-78), TRAP 143 (116-167) to 109 (77-136), both p < .01; AA 25 (16-49) to 17 (12-24) and COL 92 (47-103) to 60 (38-81) U, both p < .05. No further decrease was seen after 100% protamine. The effect was transient and after twenty minutes platelet aggregation had started to recover; ADP 76 (54-106), TRAP 138 (95-158), AA 20 (10-35), COL 70 (51-93) U. Blood loss during operation correlated to aggregometry measured at baseline and after protaminization. Conclusions: Protamine after CPB induces a marked decrease in platelet aggregation already at a protamine-heparin ratio of 0.7:1. The impairment seems to be transient and recovery had started after 20 minutes.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Kardiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cardiac and Cardiovascular Systems (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Anestesi och intensivvård (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Anesthesiology and Intensive Care (hsv//eng)
Nyckelord
- Cardiopulmonary bypass
- platelet aggregation
- platelet function test
- protamine
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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