Journals / Turkish Journal of Hematology / 2018 / Cilt: 35 - Sayı: 4

Does Reinfusion of Stem Cell Products on Multiple Days Affect Engraftment?

Çoklu Gün Kök Hücre Reinfüzyonu Engrafmanı Etkiler mi?

Pages
271–276
Publication Date
2022-11-05
DOI
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There was no statisticaldifference between the two groups for hospitalization days (p=0.060,r=0.050).Conclusion: In cases with a high volume of stem cell product to acquireadequate stem cells, reinfusion can be safely applied across multipledays without any delay in engraftment.

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Objective & Hypothesis:Objective: High-doses of melphalan treatment with autologousstem cell transplantation in multiple myeloma (MM) remains a majortreatment modality in suitable patients.
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Key Findings & Data:A minimal dose of 2x106/kgCD34+ cells is preferred to achieve engraftment.
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Conclusion & Impact:There was no statisticaldifference between the two groups for hospitalization days (p=0.060,r=0.050).Conclusion: In cases with a high volume of stem cell product to acquireadequate stem cells, reinfusion can be safely applied across multipledays without any delay in engraftment.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: High-doses of melphalan treatment with autologousstem cell transplantation in multiple myeloma (MM) remains a majortreatment modality in suitable patients. A minimal dose of 2x106/kgCD34+ cells is preferred to achieve engraftment. Some patients needmultiple leukapheresis procedures to achieve the necessary numberof CD34+ cells, but this can cause a high volume of stem cell productthat cannot be given in a single day. Whether or not the number ofinfusion days affects engraftment has not been studied before. Weaimed to evaluate the impact of reinfusion of stem cells on multipledays on engraftment results.Materials and Methods: Demographic features, CD34+ cell doses,neutrophil and platelet engraftment days, hospitalization days, andnumber of infusion days of 149 autologous transplantations of 143MM patients were evaluated retrospectively.Results: The data of 143 MM patients who were transplanted wereanalyzed retrospectively. Median age was 55±8.5 (range: 26-70) yearswith a male/female ratio of 91/58. Hospitalization days for all patientswere 24±6 (range: 14-50) days. Mean CD34+ cell number was (7.5±5.3)x106/kg (range: 1.5-31x106/kg). CD34+ cells were reinfused in 1 day in80.5% (n=120) of the patients, 2 days in 18.2% of the patients (n=27),and 3 days in 1.3% of the patients (n=2). For 29 patients, reinfusionwas applied in more than 1 day because of the high volume of stemcell product. We did not see any dimethyl sulfoxide toxicity, cardiacarrhythmia, or volume overload complications. Hypertensive attacksduring infusion were easily controlled by furosemide treatment. In thegroup with multiple infusions, the infused CD34+ cell numbers had amean of (4.8±2.8)x106/kg, and in the single infusion group the meanwas (8.1±5.5)x106/kg. There were no statistical differences betweenthe two groups regarding platelet and neutrophil engraftment days(p=0.850, r=0.820 and p=0.500, r=0.440). There was no statisticaldifference between the two groups for hospitalization days (p=0.060,r=0.050).Conclusion: In cases with a high volume of stem cell product to acquireadequate stem cells, reinfusion can be safely applied across multipledays without any delay in engraftment.

Özet

Amaç: Multipl myelom (MM) hastalarında yüksek doz melfalan ve otolog kök hücre nakli fit hastalarda hala majör tedavi modalitesidir. Yeterli engrafman için en az 2x106 /kg CD34+ hücre dozu tercih edilir. Bazı hastalar gerekli sayıda CD34+ hücre sayısına ulaşmak için çoklu lökoferez prosedürüne ihtiyaç duyarlar, fakat bu tek günde verilemeyen yüksek miktarda kök hücre ürününe neden olabilir. İnfüzyon günü sayısının engrafmanı etkileyip etkilemediği daha önce çalışılmamıştır. Çoklu gün kök hücre reinfüzyonunun engrafman sonuçlarına etkisini değerlendirmeyi amaçladık. Gereç ve Yöntemler: Demografik özellikler, CD34+ hücre dozları, nötrofil ve trombosit engrafman günleri, hastanede yatış günleri ile 143 MM hastasının 149 otolog transplantasyonunun infüzyon gün sayısı retrospektif olarak değerlendirildi. Bulgular: Transplantasyon yapılan 143 MM hastasının verileri retrospektif olarak incelendi. Ortalama yaş 55±8,5 idi (en düşük: 26 - en fazla: 70) ve erkek/kadın oranı 91/58 idi. Tüm hastalar için hastanede kalış günleri 24±6 gündü (en düşük: 14 - en fazla: 50). Ortalama CD34+ hücre sayısı (7,5±5,3)x106/kg idi (en düşük: 1,5 x106 /kg - en yüksek: 31x106 /kg). Hastaların %80,5’inde (n=120) tek günde CD34+ hücre reinfüzyon, hastaların %18,2’sinde (n=27) 2 günde CD34+ hücre reinfüzyon ve hastaların %1,3’ünde (n=2) 3 günde CD34+ hücre reinfüzyon yapılmıştı. Yirmi dokuz hastada yüksek hacimde kök hücre ürünü olması nedeniyle 1 günden fazla reinfüzyon uygulandı. Herhangi bir dimetil sülfoksit toksisitesi, kardiyak aritmi veya hacim yükü komplikasyonları görmedik. İnfüzyon sırasında hipertansif ataklar furosemid tedavisi ile kolayca kontrol altına alındı. CD34+ hücre sayıları ortalama çoklu gün reinfüzyonu yapılan grupta (4,8±2,8)x106 /kg ve tek gün reinfüzyon grubunda ise (8,1±5,5)x106 / kg idi. İki grup arasında trombosit ve nötrofil engrafman günleri açısından istatistiksel olarak anlamlı fark yoktu (p=0,850, r=0,820 ve p=0,500, r=0,440). İki grup arasında hastanede yatış günleri açısından istatistiksel fark yoktu (p=0,060, r=0,050) Sonuç: Yeterli kök hücre elde etmek için yüksek miktarda kök hücre toplanması durumunda, engrafmanda herhangi bir gecikme olmaksızın reinfüzyon çoklu günde güvenli bir şekilde uygulanabilir.

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Cite This Article

ÖZCAN, M. A., SEVİNDİK, Ö. G., ACAR, C., MEDENİ, Ş. S., PİŞKİN, Ö., ALACACIOĞLU, İ., YÜKSEL, F., TÜRKYILMAZ, D., ÜNDAR, B., ÖZSAN, G. H., DEMİRKAN, F. (2022). Does Reinfusion of Stem Cell Products on Multiple Days Affect Engraftment?. Turkish Journal of Hematology, Cilt: 35 - Sayı: 4, 271–276. https://ajindex.com/articles/606760

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