• Chih-Chun Chang, Jung-Li Ho, Pei-Chin Lin, Chao-Pei Lin, Wei-Ting Tsai, Huei-Ling Huang, Yuan-Bin Yu, Wei-Chi Chen, and Fang-Yeh Chu.
• Department of Clinical Pathology, Far Eastern Memorial Hospital, New Taipei, Taiwan.
• Medicine (Baltimore). 2024 Jun 7; 103 (23): e38523e38523.

AbstractMultiple myeloma (MM) was one of the hardest cancers to diagnose because of numerous nonspecific symptoms, leading to diagnostic delay. Proactive consultation of laboratory medicine (PCLM) could help timely diagnosis of blood cancers, avoiding diagnostic delay. This study aimed to evaluate the effect of PCLM on diagnosis and outcomes in MM. This retrospective study was conducted in newly diagnosed MM patients from 2011 to 2022. Implementation of PCLM initiated in 2015 with a laboratory-oriented algorithm. The annual diagnostic rate, patient demographics, the time intervals from symptom onset to diagnosis and to treatment, and clinical outcomes were analyzed. A total of 134 patients were newly diagnosed during the study interval. The diagnostic rate increased from 4.65 ± 1.59 to 7.43 ± 1.52 per million patient-visits after implementation of PCLM. The median time interval from symptom onset to diagnosis was significantly shortened after implementation of PCLM (50 days with interquartile range [IQR]: 24-136 days vs 150 days with IQR: 41-385 days, P = .003). Besides, the 1-year survival was significantly higher in patients diagnosed as MM after implementation of PCLM (72.4% vs 51.7%, P = .035). Implementation of PCLM not only increased diagnostic rate of MM and improved outcomes, but also raise awareness for MM and promote multidisciplinary collaboration in healthcare.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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