“…Besides, the longer hospitalization of stay made the patients at risk of pneumonia and more medical cost. 14 If the medical cost per day is 2,000 TWD (~66 USD) from the national health insurance, and the cost of intravenous TEA administration per dose (5 mg) is 10 TWD (~0.3 USD), then assuming 200 patients annually with unilateral TKA, there would be a cost saving of 160,000 TWD (~5,300 USD) in each hospital per year (i.e. 200/5 (total number/NNT) × 2000 × 2).…”