Abstract
Subjective To investigate clinical characteristics, treatment, and prognosis of lymphoma-associated hemophagocytic syndrome (LAHS) patients. Methods: The clinical data of patients diagnosed with LAHS from January 2010 to October 2021 in West China Hospital were retrospectively analyzed. Clinical characteristics, treatment, overall response rate (ORR), and overall survival (OS) were investigated. Univariate and multivariate analysis of potential factors were conducted. Results: Of all 94 patients included, 59 were male and 35 were female. The age at hemophagocytic lymphohistiocytosis (HLH) diagnosis was (40.5±17.3) years. Seventy-four cases were T/NK cell lymphoma; 15 were B cell lymphoma; 5 were Hodgkin lymphoma. The age at HLH diagnosis of T/NK cell LAHS patients was (37.9±16.2) years, while that of B cell LAHS patients was (55.9±14.0) years. T/NK cell LAHS patients were significantly younger than B cell LAHS patients (P<0.001). Baseline fibrinogen of T/NK cell LAHS patients was 1.34 (0.86, 2.44) g/L, while that of B cell LAHS patients was 2.20 (1.75, 4.25) g/L. T/NK cell LAHS patients showed significantly lower fibrinogen levels than B cell LAHS patients (P=0.008). Combined treatment of anti-HLH and anti-lymphoma treatment was conducted in 35 patients; anti-HLH treatment was conducted in 31 patients; anti-lymphoma treatment was conducted in 8 patients; glucocorticoid treatment was conducted in 7 patients. ORR was 49.4%, and the median OS was 61 days for overall patients. Patients who received anti-HLH treatment and turned to anti-lymphoma treatment early displayed the best ORR and OS, significantly higher than those of anti-HLH patients (69.0 vs 38.7%, P=0.019, and 192.0 vs 24.5 days, P=0.028, respectively), which were also insignificantly higher than those of anti-lymphoma patients. Extranodal NK/T-cell lymphoma or aggressive natural killer cell leukemia was the risk factor of LAHS prognosis (HR=0.113, 95%CI: 0.018-0.728, P=0.022). Conclusions: Prognosis of LAHS patients is poor. Anti-lymphoma treatment should be initiated as soon as HLH is rapidly controlled.
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