Evaluation of clinical effectiveness of blood stasis leaflet in patients with blood stasis: A prospective, randomized, and crossover trial

Abstract

Background: Blood stasis (BS) refers to a pattern of symptoms resulting from circulatory dysfunction or stagnation in the human body. Due to its historical origin and diverse interpretations, communication between patients and doctors of traditional Korean medicine (DKMs) presents challenges. Efforts to improve patients understanding in traditional Korean medicine (TKM) have led to the development of disease-specific standard clinical practice guidelines. However, there is a limited focus on creating clinical practice guidelines or informative leaflet specifically addressing BS, which is a frequently encountered pattern of symptoms in TKM. Methods: This study aimed to bridge the gap between patients and DKMs by developing an informative leaflet focusing on BS for metabolic diseases. We assessed its appropriateness through expert advisory meetings and the Delphi process, and evaluated its clinical effectiveness. We conducted a prospective, randomized, crossover trial to compare the clinical effectiveness of using BS leaflets in TKM treatment. The hypothesis investigated whether the leaflet group would show higher scores in satisfaction of DKMs’ explanations, understanding of DKMs’ explanations, improving the reliability of TKM, satisfaction with treatment time, improvement in explanations compared to previous TKM experiences, and necessity of managing BS treatment, compared to the no-leaflet group. Results: In a study involving 40 patients (mean age: 62.3 ± 7.8 years), symptoms persisted for an average of 16.75 ± 9.3 hours daily, with a severity rating of 2.53. The leaflet group exhibited significantly higher satisfaction scores than the no-leaflet group in all aspects (all P < .0001). After confirming the absence of sequence and period effects using a linear-mixed effect model, we were able to ascertain the presence of a treatment effect, as evidenced by statistically significant higher scores across all survey items in the leaflet group compared to the no-leaflet group (all P < .0001). Conclusion: Expert consensus on symptoms aligning with the BS pattern resulted in the development of an informative leaflet. Its utilization notably improved patient satisfaction, comprehension, and trust in TKM treatment, unaffected by temporal influences, thus demonstrating its clinical effectiveness. In summary, the BS leaflet significantly enhanced patient understanding and optimized treatment procedures.