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Research ArticleClinical Studies

Prophylaxis of Central Venous Catheter-related Thrombosis with Minidose Warfarin: Analysis of Its Use in 427 Cancer Patients

MASSIMO MAGAGNOLI, GIOVANNA MASCI, LUCA CASTAGNA, PAOLO ANDREA ZUCALI, EMANUELA MORENGHI, VITTORIO PEDICINI and ARMANDO SANTORO
Anticancer Research July 2005, 25 (4) 3143-3147;
MASSIMO MAGAGNOLI
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  • For correspondence: massimo.magagnoli@humanitas.it
GIOVANNA MASCI
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LUCA CASTAGNA
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PAOLO ANDREA ZUCALI
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EMANUELA MORENGHI
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VITTORIO PEDICINI
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ARMANDO SANTORO
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Abstract

Background: In the past few years, several studies have been performed to evaluate thrombosis prophylaxis with warfarin in cancer patients with central venous catheters (CVC), but the analysis of these studies does not allow firm conclusions to be drawn. Patients and Methods: Four hundred and twenty-seven cancer patients were evaluated. Each received warfarin at a dose of 1 mg/daily as prophylaxis, starting the day after CVC positioning until its removal. Results: The catheters were monitored for a mean of 168 days (range 22-706). There were 9 thrombotic events (1.8%). Overall, International Normalised Ratio (INR) elevation occurred in 55 (12.8%) patients. Bleeding was observed in 15 (3.5%) patients, 10 of whom had elevated INR levels. Of these, all were treated with continuous-infusion 5-Fluorouracil (5-FU)-based regimens. Conclusion: Minidose warfarin can protect from clinical thrombosis, but can induce an alteration in INR values and/or haemorrhagic symptoms in patients being treated with 5-FU-based regimens.

  • Catheters
  • prophylaxis
  • warfarin
  • thrombosis
  • chemotherapy

Footnotes

  • Received February 1, 2005.
  • Accepted May 4, 2005.
  • Copyright© 2005 International Institute of Anticancer Research (Dr. John G. Delinassios), All rights reserved
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Anticancer Research: 25 (4)
Anticancer Research
Vol. 25, Issue 4
1 Jul 2005
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Prophylaxis of Central Venous Catheter-related Thrombosis with Minidose Warfarin: Analysis of Its Use in 427 Cancer Patients
MASSIMO MAGAGNOLI, GIOVANNA MASCI, LUCA CASTAGNA, PAOLO ANDREA ZUCALI, EMANUELA MORENGHI, VITTORIO PEDICINI, ARMANDO SANTORO
Anticancer Research Jul 2005, 25 (4) 3143-3147;

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Prophylaxis of Central Venous Catheter-related Thrombosis with Minidose Warfarin: Analysis of Its Use in 427 Cancer Patients
MASSIMO MAGAGNOLI, GIOVANNA MASCI, LUCA CASTAGNA, PAOLO ANDREA ZUCALI, EMANUELA MORENGHI, VITTORIO PEDICINI, ARMANDO SANTORO
Anticancer Research Jul 2005, 25 (4) 3143-3147;
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