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Therapeutic plasma exchange in patients with thrombotic thrombocytopenic purpura: A retrospective multicenter study

Date

2013

Author

Korkmaz, Serdal
Keklik, Muzaffer
Sivgin, Serdar
Yildirim, Rahsan
Tombak, Anil
Kaya, Mehmet Emin
Acik, Didar Yanardag
Esen, Ramazan
Hacioglu, Sibel Kabukcu
Sencan, Mehmet
Kiki, Ilhami
Tiftik, Eyup Naci
Kuku, Irfan
Okan, Vahap
Yilmaz, Mehmet
Demir, Cengiz
Sari, Ismail
Altuntas, Fevzi
Unal, Ali
Ilhan, Osman

Metadata

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Abstract

Thrombotic thrombocytopenic purpura (TIT) is a particular form of thrombotic microangiopathy typically characterized by thrombocytopenia, microangiopathic hemolytic anemia, fever, neurological abnormalities, and renal dysfunction. UP requires a rapid diagnosis and an adapted management in emergency. Daily sessions of therapeutic plasma exchange (TPE) remain the basis of management of UP. Also, UP is a rare disease that is fatal if it is not treated. TPE has resulted in excellent remission and survival rates in UP patients. Aim: We aimed to present our experience in 163 patients with UP treated with TPE during the past 5 years from 10 centers of Turkey. Patients and methods: One hundered and sixty-three patients with UP treated with TPE during the past 5 years from 10 centers of Turkey were retrospectively evaluated. TPE was carried out 1-1.5 times plasma volume. Fresh frozen plasma (FFP) was used as the replacement fluid. TPE was performed daily until normalization of serum lactate dehydrogenase (LDH) and recovery of the platelet count to >150 x 10(9)/dL. TPE was then slowly tapered. Clinical data, the number of TPE, other given therapy modalities, treatment outcomes, and TPE complications were recorded. Results: Fifty-eight percent (95/163) of the patients were females. The median age of the patients was 42 years (range; 16-82). The median age of male patients was significantly higher than female (53 vs. 34 years; p < 0.001). All patients had thrombocytopenia and microangiopathic hemolytic anemia. At the same time, 82.8% (135/163) of patients had neurological abnormalities, 78.5% (128/163) of patients had renal dysfunction, and 89% (145/163) of patients had fever. Also, 10.4% (17/163) of patients had three of the five criteria, 10.4% (17/163) of patients had four of the five criteria, and 6.1% (10/163) of patients had all of the five criteria. Primary UP comprised of 85.9% (140/163) of the patients and secondary UP comprised of 14.1% (23/163) of the patients. Malignancy was the most common cause in secondary UP. The median number of TPE was 13 (range; 1-80). The number of TPE was significantly higher in complete response (CR) patients (median 15.0 vs. 3.5; p < 0.001). CR was achieved in 85.3% (139/163) of the patients. Similar results were achieved with TPE in both primary and secondary UP (85% vs. 87%, respectively; p = 0.806). There was no advantage of TPE + prednisolone compared to TPE alone in terms of CR rates (82.1% vs. 76.7%; p = 0.746). CR was not achieved in 14.7% (24/163) of the patients and these patients died of TTP related causes. There were no statistical differences in terms of mortality rate between patients with secondary and primary TIT [15% (21/140) vs. 13% (3/23); p = 0.8061. But, we obtained significant statistical differences in terms of mortality rate between patients on TPE alone and TPE + prednisolone [14% (12/86) vs. 3% (2/67), p < 0.001]. Conclusions: TPE is an effective treatment for UP and is associated with high CR rate in both primary and secondary UP. Thrombocytopenia together with microangiopathic hemolytic anemia is mandatory for the diagnosis of UP and if these two criteria met in a patient, TPE should be performed immediately. (C) 2013 Elsevier Ltd. All rights reserved.

Source

TRANSFUSION AND APHERESIS SCIENCE

Volume

48

Issue

3

URI

https://dx.doi.org/10.1016/j.transci.2013.04.016
https://hdl.handle.net/20.500.12418/8678

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  • Makale Koleksiyonu [5200]
  • Makale Koleksiyonu [5745]
  • Öksüz Yayınlar Koleksiyonu - WoS [6162]



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