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JOURNAL ARTICLE
OBSERVATIONAL STUDY
Still a role for surgery as first-line therapy of splenic marginal zone lymphoma? Results of a prospective observational study.
International Journal of Surgery 2017 May
AIM: Assessment of hematologic improvement, survival and peri-operative morbidity after first-line splenectomy for splenic marginal zone lymphoma (SMZL).
METHODS: Forty-three patients undergoing open splenectomy were prospectively analyzed. Perioperative clinical course, overall and progression-free survival (OS-PFS) were evaluated. Risk factors analyzed were gender, age, ASA-grade, ECOG performance status, presence of B-symptoms, body mass index, steroidal treatment, serum albumin concentration, IIL-score, operative time, spleen size and weight.
RESULTS: The median follow-up was 31 months (IQR 15-76; range 24-154). Anemia and thrombocytopenia resolved in 80% of patients at 6 months; in 60% at 2 years. The 5-year and 10-year PFS were 35% and 13% respectively, with a median of 35 months (shorter in patients with ECOG performance status ≥2 and B-symptoms). Nineteen cases (44.2%) had a progression of disease within 2 years. Of these, 14 (32.6%) received adjuvant chemotherapy (mainly R-FC or R-CVP). Progression was attributed to high-grade B lymphoma in 7 (16.3%) patients. The median time between diagnosis and progression to aggressive lymphoma was 25.5 months (range 18.8-81.8). The median time to next treatment was 83.5 months (95% CI 49-118). The 5-year and 10-year OS were 75% and 53% respectively. Mortality was due to disease progression and histological transformation in high-grade B lymphoma in 50% of cases, myelodisplastic syndrome in 15%, recurrence of hemolytic anemia in 15%, Hodgkin lymphoma in 7% and to infections (mainly pulmonary) in the remaining 13% of cases. Post-operative morbidity was 2.3% (1 patient with grade-3 complication). Overall grade ≥2 complication rate was 32.5% (mainly hemorrhagic and pulmonary complications). Spleen weight was the only independent risk factor for morbidity. Mortality was nil.
CONCLUSION: Splenectomy is safe and effective as regards cytopenia resolution and OS, although disease progression is frequently observed at follow-up. Such results are strictly linked to accurate pre- and post-operative clinical management and optimal anesthesiologic approach.
METHODS: Forty-three patients undergoing open splenectomy were prospectively analyzed. Perioperative clinical course, overall and progression-free survival (OS-PFS) were evaluated. Risk factors analyzed were gender, age, ASA-grade, ECOG performance status, presence of B-symptoms, body mass index, steroidal treatment, serum albumin concentration, IIL-score, operative time, spleen size and weight.
RESULTS: The median follow-up was 31 months (IQR 15-76; range 24-154). Anemia and thrombocytopenia resolved in 80% of patients at 6 months; in 60% at 2 years. The 5-year and 10-year PFS were 35% and 13% respectively, with a median of 35 months (shorter in patients with ECOG performance status ≥2 and B-symptoms). Nineteen cases (44.2%) had a progression of disease within 2 years. Of these, 14 (32.6%) received adjuvant chemotherapy (mainly R-FC or R-CVP). Progression was attributed to high-grade B lymphoma in 7 (16.3%) patients. The median time between diagnosis and progression to aggressive lymphoma was 25.5 months (range 18.8-81.8). The median time to next treatment was 83.5 months (95% CI 49-118). The 5-year and 10-year OS were 75% and 53% respectively. Mortality was due to disease progression and histological transformation in high-grade B lymphoma in 50% of cases, myelodisplastic syndrome in 15%, recurrence of hemolytic anemia in 15%, Hodgkin lymphoma in 7% and to infections (mainly pulmonary) in the remaining 13% of cases. Post-operative morbidity was 2.3% (1 patient with grade-3 complication). Overall grade ≥2 complication rate was 32.5% (mainly hemorrhagic and pulmonary complications). Spleen weight was the only independent risk factor for morbidity. Mortality was nil.
CONCLUSION: Splenectomy is safe and effective as regards cytopenia resolution and OS, although disease progression is frequently observed at follow-up. Such results are strictly linked to accurate pre- and post-operative clinical management and optimal anesthesiologic approach.
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