Impact of Dietary Vitamin K Intake on Anticoagulation Therapy in Patients With Left Ventricular Assist Device During the 2018 Osaka Earthquake

Circ Rep. 2024 Jun 15;6(7):272-275. doi: 10.1253/circrep.CR-24-0051. eCollection 2024 Jul 10.

Abstract

Background: The 2018 Osaka earthquake caused severe damage to the National Cerebral and Cardiovascular Center, and the interruption to the delivery of hospital food in particular had a significant effect on patients with left ventricular assist devices (LVAD). Methods and Results: We retrospectively assessed 10 patients who had been provided with emergency rations on the day of earthquake and the next day for breakfast. Catered foods were provided thereafter. Vitamin K content was largely reduced due to emergency rations; the prothrombin time-international normalized ratio (PT-INR) on day 2 was significantly higher than on day 1. Conclusions: Close monitoring of PT-INR and assessing vitamin K content may be important for preventing complications in patients with a LVAD during a disaster.

Keywords: Emergency rations; Left ventricular assist device; Prothrombin time-international normalized ratio.