eISSN: 1897-4252
ISSN: 1731-5530
Kardiochirurgia i Torakochirurgia Polska/Polish Journal of Thoracic and Cardiovascular Surgery
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2/2016
vol. 13
 
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abstract:

A novel point for warfarin usage in ACCP Guidelines, 2012 and its importance for quality of anticoagulation. Commentary on the article by Dr. Ciurus et al. (Kardiochir Torakochir Pol 2015; 12 (4): 334-340)

Fahri Gurkan Yesil
,
Mustafa Kurkluoglu
,
Adem Guler
,
Mehmet Ali Sahin
,
Bilgehan Savas Oz

Kardiochirurgia i Torakochirurgia Polska 2016; 13 (2): 192-193
Online publish date: 2016/07/03
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We have read with great interest the article about the factors affecting the quality of anticoagulation with warfarin by Ciurus et al. [1]. The authors implicate the importance of predictors of controlling the anticoagulation. They aim to assess the quality of anticoagulant therapy in patients on warfarin and evaluate the factors affecting its deterioration. We thank the authors for their well-designed study. Regarding the current guidelines concerning anticoagulant therapy, we detected some contradictory and overlooked points that should be highlighted. We want to make some contributions to the report by Ciurus et al. [1] about the warfarin usage introduction update and education change according to current guidelines.
Despite the presentation of new anticoagulants, vitamin K antagonists (VKA) still maintain their importance in clinical administration [2]. Unfortunately, this wide use of VKA is still associated with a wide spectrum of complications. Particular concerns have been raised regarding prevention of these complications. As one of them, the Ciurus et al. emphasized that maximizing the time in the optimum therapeutic range has great importance for avoiding adverse clinical outcomes [1]. To attain this goal, controlling the patient-specific factors such as adherence to the therapeutic plan, appropriate dosing, and reliable international normalized ratio (INR) control are very important. Among such patient-related factors, the feeding habit of the patients is a special issue. Many doctors and patients remember the wide VKA interaction food list containing dietary vitamin K. It has been a frequent practice to limit or alter dietary habits of the patients according to those food lists. But this clinical advice has been changed by the American College of Chest Physicians (ACCP) Evidence-Based Clinical Practice Guidelines, 2012 [3].
It is suggested in the abovementioned document that limitations of diet deteriorate the therapeutic INR levels. Because most people have long-lasting dietary habits, which are very difficult to change, attempts to change any dietary habit may result in uncontrolled alterations of oral vitamin K intake, resulting in difficulties sustaining the therapeutic INR levels. The ACCP guidelines recommend that “A consistent intake of vitamin K-containing foods is advisable, but neither specific restrictions nor additions seem necessary in patients with stable anticoagulant control. Patients should be informed of possible...


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