Analysis of extracorporeal photopheresis within the frame of the WAA register.

The aim of the study was to investigate safety and if extracorporeal photopheresis (ECP) may change health criteria (HC) and quality of life (QoL). MATERIAL AND METHOD: 560 patients (33 % women) were treated with ECP for a total of 13,871 procedures during a 17-years period. Mean age was 48 years (±18, range 3-81 years). Self-estimation of QoL was graded: 0 (suicidal) up to 10 (best ever) and HC: 0 (Bed ridden, ICU condition) up to 10 (athletic). Adverse events were analyzed. ANOVA and paired comparisons were performed. RESULTS: Patients were treated due to graft versus host disease (GVHD, n = 317), skin lymphoma (n = 70), solid organ transplants (n = 47), skin diseases (n = 20) and other diseases (n = 106). Adverse events (AEs) were registered in 5.4 % of the first treatments and in 1.2 % of the subsequent procedures. Severe AEs were present in 0.04 % of all procedures. No patient died due to the procedure. Tingling and stitching were the most common AE. For those with GVHD an improvement was noticed within approximately 10 procedures of ECP in the severity stage, QoL (from a mean of 6.1 to 6.8, p < 0.002) and the HC (6.1 -> 6.4, p < 0.014) and improved further with added procedures. CONCLUSION: Photopheresis is an established therapy with few side effects. The present study of soft variables indicate that GVHD shows benefits upon ECP within approximately 10 procedures in regard to the severity of mainly skin GVHD, and lower baseline levels of HC and QoL.

Effects of ABO incompatibility in allogeneic hematopoietic stem cell transplantation.

INTRODUCTION: The impact of ABO mismatch on outcomes following allo-HSCT remains controversial. In this study, our aim is to define the effect of ABO mismatch on post-transplant outcomes, engraftment kinetics and complications in a large cohort. PATIENTS AND METHODS: We retrospectively identified 1000 patients who underwent allo-HSCT from either bone marrow or peripheral blood stem cells at our center between 1988 and 2016. P<0.05 was considered statistically significant. RESULTS: Five hundred and ninety (59%) patient-donor pairs were ABO matched, 164 (16.4%) were ABO major mismatched (MM), 191 (19.1%) were ABO minor MM, and 55 (5.5%) were ABO bi-directionally MM. ABO matched pairs were more common in transplants from related donors (P<0.001) and using bone marrow as a stem cell source (P<0.001). In minor ABO MM transplantations, mild delayed hemolytic reaction occurred more frequently compared to major and bidirectional ABO MM transplantations (47% vs 35% and 18%, P<0.001). Neutrophil engraftment was slightly delayed in ABO MM patient-donor pairs when compared ABO matched donor pairs according to median engraftment time in all group (167/410, 41% vs 204/590, 35%, P=0.046). Pure red cell aplasia was diagnosed in 6 patients (1%). Higher risk of death was shown in ABO MM transplants compared to ABO matched transplants in overall survival (OS) analysis (HR:1.201, 95% CI:1.004-1.437, P=0.045). The non-relapse mortality (P=0.546) and cumulative incidences of acute graft versus host disease (aGVHD) and chronic (c) GVHD were comparable between ABO MM and ABO matched patient-donor pairs (for aGVHD, P=0.235; for cGVHD, P=0.137). CONCLUSION: ABO MM transplants were associated with decreased OS and slightly delayed neutrophil engraftment. NRM and the risk of GVHD were not related to ABO incompatibility.

Evaluation of health and quality of life in apheresis patients - data from the WAA register.

OBJECTIVE: The World Apheresis Association (WAA) register contains data from more than 89 000 apheresis procedures in more than 12,000 patients. The aim of this study was to evaluate functional health and quality of life (QoL) in patients during apheresis treatment. MATERIAL AND METHODS: Estimates of health condition (HC) were made in 40,445 and of QoL in 22112 apheresis procedures. This study focused on a 10-step graded evaluation of HC (scale from: 'bedridden, unable to eat' to a level of 'athletic competition') and self-assessment of QoL (scale from: worst ever '0' to best ever '10'). Data were compared in relation to various apheresis procedures and if the patient underwent the first or subsequent apheresis procedure. RESULTS: Of the patients treated with plasma exchange (PEX) with centrifugation technique (n = 15787) 10% were 'bedridden, unable to come out of bed' while for patients treated with plasma filtration technique (n = 1018) the percentage was 27%. During the first procedure these figures were 16% and 30%, respectively. Self-estimates of QoL were graded 'zero' or '1' in 1.6% of patients during the first apheresis procedure; At the first contact patients undergoing PEX graded like this in 4.3%. CONCLUSION: Many of the patients undergoing apheresis treatment have poor HC and QoL at the start of therapy. Of all therapeutic apheresis procedures patients undergoing PEX had the lowest score of QoL.

Early initiation of extracorporeal photochemotherapy increases response for chronic graft versus host disease following steroid failure.

OBJECTIVES: Chronic graft versus host disease (GVHD) is one of the major obstacles to achieve success in allogeneic hematopoietic stem cell transplantation (allo-HSCT). Extracorporeal photochemotherapy (ECP) has been demonstrated to be an effective modality for the treatment of GVHD in previous studies but they vary in terms of initiation and duration. Our aim is to demonstrate the characteristics of our patients who received ECP for chronic GVHD to clarify the best treatment scheme. MATERIAL AND METHODS: In this study, we retrospectively evaluated 34 patients with steroid refractory chronic GVHD (n=34) who were treated with ECP between 2001 and 2015. The initiation of ECP was determined according to patient status and the physician's preference. RESULTS: ECP was initiated early (≤3months) as the preferred second-line treatment after failure of methylprednisolone treatment in 12 patients (35%), 22 steroid refractory patients (65%) received ECP later. In all cohorts, 10 (29%) and 14 (41%) of 34 patients achieved complete response (CR) and partial response (PR), respectively, with an overall response rate (ORR) of 70. Early initiation of ECP after chronic GVHD diagnosis (≤3months vs more than 3months) was associated with increased rates of response (92% vs 59%, P=0.046) in which the severity of diseases were similar. Patients with skin involvement in early treatment group had statistically better response. Mild side effects were detected in only 6 patients (16%). CONCLUSION: ECP is a safe treatment modality and particularly effective when initiated soon after steroid failure in chronic GVHD.

Extracorporeal photochemotherapy in mycosis fungoides.

OBJECTIVES: Extracorporeal photo-chemotherapy (ECP, photopheresis) is an approved treatment modality for mycosis fungoides (MF). Our aim is to present our ECP data for MF. METHODS: We retrospectively evaluated 50 MF patients who received ECP for clinical activity, toxicity, and response and outcome rates, and we compared these with combination therapies. RESULTS: The overall response rate (ORR) was 42% (21/50), while the median time to response was 11months (range, 3-48months). Ten of the responders (48%) had 3 or more treatment lines prior to ECP. Eight patients (16%) had adverse events related to ECP. The overall survival (OS) of 50 patients was 72months (range, 3-211). There was no statistically significant difference in the OS in early-stage vs late-stage patients (77 vs 69months, P=0.077). The stage 3 and 4 patients received an average of 31 cycles compared to 55 cycles in stage 1 and 2 patients (P=0.006). The increased extent of ECP was not correlated with the response. Combined treatment with ECP significantly improved the OS (84months vs 62months, P=0.005). DISCUSSION: A low frequency of side effects and improved OS observed in combination therapy makes ECP a favorable option for treating MF.

Hyperviscosity in renal transplant recipients.

OBJECTIVE: The resistance of blood to flow is called plasma viscosity. Increased blood viscosity has been described in patients with coronary and peripheral arterial disease. In this study, we evaluated the influence of clinical and laboratory findings on plasma viscosity in renal transplant recipients. METHODS: Eighty-one kidney transplant recipients (37.8 ± 11.3 years old, 50.38 ± 16.8 months post-transplantation period, 27 female) with normal graft functions were enrolled. The biochemical and clinical parameters in the 1st year after transplantation were retrospectively recorded, and graft function was evaluated by means of the yearly decline in eGFR. Plasma viscosity was measured and searched for the association with cross-sectionally analyzed cardiovascular parameters including body composition analyses, ambulatory blood pressure monitoring (ABPM) data, and pulse-wave velocity. RESULTS: Patients were divided into 2 groups according to the median value of serum viscosity. Patients with high viscosity had higher serum low-density lipoprotein (P = .042) and C-reactive protein (P = .046) levels than lower viscosity group. In ABPM, daytime (P = .047) and office systolic (P = .046) blood pressure levels and left ventricular mass index (LVMI; P = .012) were significantly higher in patients with hyperviscosity. Patients with high viscosity had higher hip circumference (P = .038) and fat mass (P = .048). Estimated glomerular filtration rate decline was significantly higher in high-viscosity patients than in patients with low viscosity levels (12.9% vs 17.2%; P = .001) at 2 years' follow-up. CONCLUSIONS: We suggest that the hyperviscous state of the renal transplant recipients may arise from the inflammatory state, hypertension, and increased fat mass and increased LVMI. Hyperviscosity is also closely related to renal allograft dysfunction.

Older age and capacity of colony forming unit in autologous peripheral derived hematopoietic cells.

BACKGROUND: Aging decreases bone marrow cellularity and alters the frequencies of stem cells. Aged hematopoietic stem cells can differ from their younger counterparts in functional capacity. STUDY DESIGN AND METHODS: We aimed to evaluate the relation between the age and the ability of colony forming capacity of peripheral blood-derived hematopoietic cell products collected for autologous stem cell transplantation (AHSCT). RESULTS: Elderly patients could be mobilized with lower total collected CD34+ cells. Colony forming capacity did not differ between young and old patients. CONCLUSION: This results can be translated into clinic as higher numbers of AHSCT candidates over age 60.

Impact of age and diagnosis on viability during centrifugation and cryopreservation of peripheral blood stem cell products.

BACKGROUND: The viability of the hematopoietic stem cells infused to the patient is important for transplant outcome. STUDY DESIGN AND METHODS: We evaluated 31 peripheral blood stem cell product collected from 15 patients. We aimed to check the viabilities of the cells from patients with different age and diagnosis, in different stages of the cryopreservation procedure. RESULTS: We showed a markedly decreased viability rate after centrifugation and addition of DMSO. Percentages of viabilities were similar between young and old patients in each step. Type of hematological malignancy did not make a significant influence on the viability. CONCLUSION: High speed centrifugation has a negative impact on the viability.

Extracorporeal photopheresis for the prevention of acute GVHD in patients undergoing standard myeloablative conditioning and allogeneic hematopoietic stem cell transplantation.

GVHD is partly mediated by host APCs that activate donor T cells. Extracorporeal photopheresis (ECP) can modulate APC function and benefit some patients with GVHD. We report the results of a study using ECP administered before a standard myeloablative preparative regimen intended to prevent GVHD. Grades II-IV acute GVHD developed in 9 (30%) of 30 recipients of HLA-matched related transplants and 13 (41%) of 32 recipients of HLA-matched unrelated or HLA-mismatched related donor transplants. Actuarial estimates of overall survival (OS) at day 100 and 1-year post transplant were 89% (95% CI, 78-94%) and 77% (95% CI, 64-86%), respectively. There were no unexpected adverse effects of ECP. Historical controls receiving similar conditioning and GVHD prophylaxis regimens but no ECP were identified from the database of the Center for International Blood and Marrow Transplant Research and multivariate analysis indicated a lower risk of grades II-IV acute GVHD in patients receiving ECP (P=0.04). Adjusted OS at 1 year was 83% in the ECP study group and 67% in the historical control group (relative risk 0.44; 95% CI, 0.24-0.80) (P=0.007). These preliminary data may indicate a potential survival advantage with ECP for transplant recipients undergoing standard myeloablative hematopoietic cell transplantation.

Effects of imatinib mesylate on renin-angiotensin system (RAS) activity during the clinical course of chronic myeloid leukaemia.

The renin-angiotensin system (RAS) is involved in cell growth, proliferation and differentiation in bone marrow in an autocrine-paracrine manner, and it modulates normal and neoplastic haematopoietic cell proliferation. This study aimed to assess expressions of the RAS components, renin, angiotensinogen and angiotensin-converting enzyme (ACE), during imatinib mesylate treatment of patients with chronic myeloid leukaemia (CML). Expressions of RAS components were studied in patients with CML at the time of diagnosis (n = 83) and at 3, 6 and 12 months after diagnosis (n = 35) by quantitative real-time polymerase chain reaction. De novo CML patients had increased ACE, angiotensinogen and renin mRNA levels and these expression levels decreased following administration of imatinib. The RAS activities were significantly different among Sokal risk groups of CML, highlighting the altered biological activity of RAS in neoplastic disorders. The results of this study confirm that haematopoietic RAS affects neoplastic cell production, which may be altered via administration of tyrosine kinase inhibitors such as imatinib mesylate.

Mobilization of PBSCs with chemotherapy and recombinant human G-CSF: a randomized evaluation of early vs late administration of recombinant human G-CSF.

The optimal timing for recombinant human (rh)G-CSF administration after chemotherapy for PBSC mobilization has not yet been determined. In this study, we compared two different time schedules of rhG-CSF; 4th (early) vs 7th day (late), in 48 consecutive patients with multiple myeloma and lymphoma undergoing PBSC mobilization with CE (CY 4 g/m(2) on day 1 and etoposide 200 mg/m(2) on days 1-3). The rhG-CSF dose was 10 microg/kg/day for all patients. Both groups were comparable in terms of sex, age and number of previously given different chemotherapy regimens. Duration of neutropenia, CD34(+) cell count on the first day of apheresis and numbers of aphereses were not statistically different between the two arms. However, the number of doses of rhG-CSF up to the first cycle of apheresis procedures was significantly lower in the late group than in the early group (P=0.005). The median number of total CD34(+) cells collected was 10.54 x 10(6)/kg (range 0.11-37.27) in the early group and 10.81 x 10(6)/kg (range 0.17-49.83) in the late group of rhG-CSF (P=0.781). We conclude that PBSC mobilization after late use of rhG-CSF is an effective approach and therefore, in routine clinical practice, late rhG-CSF may be used for PBSC collections after chemotherapy-based mobilization regimens in this cost-conscious era.

Comparison of different needle diameters and flow rates on bone marrow mononuclear stem cell viability: an ex vivo experimental study.

Considerable information is available regarding the experimental and clinical applications of bone marrow derived stem cells (BMDSC) for regenerative medicine. Optimized stem cell delivery systems might help to maintain better stem cell viability. We have investigated whether needle diameters and flow rates through the needles cause any difference in terms of BMDSC viability.

Novel chromosomal translocations in multiple myeloma: t(13;16)(q14;q24) and t(1;15)(q10;q26).

Multiple myeloma (MM) is a malignant plasma cell disorder that involves multiple genetic abnormalities. Chimeric transcription factors, created by gene fusion as a result of chromosomal translocations, have been implicated in the pathogenesis of the disease. Here, we report the conventional cytogenetic analysis of a MM patient that showed a complex set of novel chromosomal rearrangements, including t(13;16)(q14;q24) and t(1;15)(q10;q26). This is probably the result of fusion of previously known genes, and would contribute to prognostic significance of the disease.

5,10-Methylenetetrahydrofolate reductase C677T gene polymorphism in Behcet's patients with or without ocular involvement.

BACKGROUND: Increased serum levels of homocysteine (Hcy) have been reported in patients with Behçet's disease (BD) with an established risk factor for vascular involvement. Recently, the authors demonstrated that elevated Hcy levels are associated with ocular involvement in such patients. On the other hand, elevated levels of Hcy can result from genetic errors. Indeed, a mutation in the 5,10-methylenetetrahydrofolate reductase (MTHFR C677T) gene influences Hcy metabolism and, therefore, MTHFR C677T polymorphism provokes hyperhomocysteinaemia. AIM: To investigate the possible genetic factor for the elevation of plasma Hcy level in patients with BD by examining gene interaction with the MTHFR C677T polymorphism, a crucial factor of the Hcy metabolism. In addition, the authors aimed to evaluate if there is an association between the C677T polymorphism and the presence of ocular involvement in such patients. METHOD: A total of 59 patients with BD (25 men, 34 women) with a mean age of 34.9 years and 42 age and sex matched healthy control subjects (19 men, 23 women; mean age 32.2) were included in this investigation. MTHFR gene polymorphism was investigated by the polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP) of a genomic DNA fragment at nucleotide 677 in all subjects in both groups. The genetic equilibrium is assumed for the gene frequencies of the MTHFR polymorphism in both samples. RESULTS: The genotype of the MTHFR gene differed between the Behçet's patients and control subjects (TT: 11.9 v 2.4%; CT: 55.9 v 61.9%; CC: 32.2 v 35.7 %). TT homozygous genotype was more frequently in BD patients than the controls, though the difference was not significant (p = 0.063). In BD patients with ocular involvement, however, the frequencies of MTHFR TT homogenetic type (27.8%) were significantly and statistically higher than those in BD patients without ocular involvement (4.9%, p = 0.022, odds ratio = 7.5), or the controls (2.4%, p = 0.003, odds ratio = 20.0). TT homozygous genotype was associated with an increased risk for ocular involvement. CONCLUSION: Elevated serum levels of Hcy seem to be a result of C677T polymorphism of the MTHFR gene, with increased TT individuals over CC and CT genotype BD patients. Although no association was shown between the MTHFR reductase C677T polymorphism and the increased risk of oral aphtahe or genital ulcers, a mutation in this gene was associated with an increased risk of ocular involvement, suggesting genetic instability with a potential initiation of Hcy lowering therapy in this patient group.

The efficacy of intravitreal triamcinolone acetonide on macular edema in branch retinal vein occlusion.

PURPOSE: To evaluate the effectiveness of intravitreal triamcinolone acetonide as primary treatment of macular edema in branch retinal vein occlusion. METHODS: Fifteen eyes of 15 patients with macular edema due to branch retinal vein occlusion (Group 1) who received 8 mg/0.2 ml of intravitreal triamcinolone injection as primary treatment were retrospectively evaluated. The control group (Group 2) consisted of 19 eyes of 19 patients who had received laser treatment for macular edema. The main outcome measures included best-corrected visual acuity, intraocular pressure, and macular edema map values of Heidelberg Retinal Tomograph II. RESULTS: In Group 1, mean visual acuity improved significantly from a mean logMAR (logarithm of minimal angle of resolution) value of 0.98+/-0.19 at baseline to a maximum of 0.24+/-0.24 during a mean follow-up time of 6.3 months. In the control group, the mean baseline log-MAR visual acuity before laser treatment was 1.02+/-0.22, and it was 0.50+/-0.28 at 6-month examinations. Mean improvement in visual acuity at 1-, 3-, and 6-month examinations was significantly higher in Group 1 when compared with the control group (for each, p<0.001). The mean edema map value of Group 1 significantly decreased by 40% at 6-month examinations when compared with preinjection value (p<0.001). In Group 1, mean increase in intraocular pressure elevation was 19.8% at the 1-month, 26.9% at 3-month, and 5.7% at 6-month visits, but intraocular pressures were under control with topical antiglaucomatous medications. CONCLUSIONS: Intravitreal triamcinolone acetonide injection may be a new and promising approach as initial therapy for macular edema due to branch retinal vein occlusion.

Congenital alveolar synechiae - a case report.

Congenital alveolar synechiae is rarely seen as an isolated disease. It is generally observed together with various syndromes such as Van der Woude and cleft palate lateral alveolar synechiae syndrome, and is concomitant with other anomalies in the maxillofacial or other regions of the body. Prior to this case report , eight cases of isolated congenital alveolar synechiae have been reported. This paper reports a case of isolated congenital alveolar synechiae in a 10-month-old baby girl. The report concentrates on the clinical features of isolated congenital alveolar synechiae, the likely aetiological causes and the treatment.

High-dose thiotepa, melphalan and carboplatin (TMCb) followed by autologous peripheral blood stem cell transplantation in patients with lymphoma -- a retrospective evaluation.

The purpose of this evaluation was to investigate the efficacy of high-dose chemotherapy with thiotepa, melphalan, and carboplatin (TMCb), and of autologous peripheral blood stem cell (PBSC) infusion in patients with aggressive non-Hodgkin's lymphoma (NHL) or Hodgkin's disease (HD). A total of 42 patients, 23 with intermediate-grade NHL and 19 with HD, received thiotepa (500 mg/m2), melphalan (100 mg/m2), and carboplatin (1050-1350 mg/m2) followed by autologous PBSC infusion. Of 21 patients with more advanced disease, four had primary refractory disease, one was in complete remission (CR)-2, 11 were in first refractory relapse, and five were beyond first relapse. Of 21 patients with less advanced disease, two were in CR-1, four were in CR-2, and 15 were in first responding relapse. In all, 14 patients (33%) had received prior radiotherapy prohibiting a total-body irradiation (TBI)-based conditioning regimen. The projected 2-year probabilities of survival, event-free survival (EFS), and relapse for all patients were 0.65, 0.60, and 0.21 (0.85, 0.80, and 0.10 for patients with less advanced disease and 0.47, 0.42, and 0.33 for patients with more advanced disease). The probability of nonrelapse mortality in the first 100 days was 0.12. Grade 3-4 regimen-related toxicities (RRT) occurred in five of 42 (12%) patients and death due to grade-4 RRT occurred in only one (2.5%) patient. These preliminary data suggest that 0.42% EFS in this study for advanced disease patients is highly encouraging and high-dose TMCb followed by autologous PBSC transplantation is well tolerated as well as an effective regimen in patients with intermediate-grade NHL or HD, and may be comparable to some previously used regimens including TBI-based regimens.

Role of pretransplant interferon-alpha(IFN) treatment in the outcome of stem cell transplantation (SCT) from related donors in chronic myelogenous leukemia (CML): results from three Turkish transplant centers.

Since transplantation cannot be performed immediately after the diagnosis of chronic myelogenous leukemia (CML), interferon treatment is usually required. This study aims to analyze the effects of interferon-alpha (IFN) treatment on allogeneic stem cell transplantation (SCT) outcome. A total of 106 patients aged 16-47 years and transplanted from HLA-identical sibling donors for CML in chronic phase (CP) were evaluated. In all, 48 had received IFN-alpha for a median duration of 5 months (1-18 months) until a median of 1 month prior to transplantation. Of the patients, 50 have received bone marrow transplant (BMT) whereas 56 have received peripheral blood stem cells (PBSCT) between 1991 and 1999 in three major transplant centers in Turkey. Patient characteristics in both groups were similar. More hematological responders were present in the IFN(+) patients (P=0.0001). No difference was found in engraftment kinetics. The incidences of acute or chronic graft-versus-host disease (GVHD), relapse and graft failure were similar in all patients regardless of stem cell source. Overall survival (OS) and disease-free survival (DFS) at 2 years were similar for both IFN(+) or (-) patients following SCT. With multivariate analysis, pretransplant IFN-alpha use, stem cell source, transplant year and CD34+ cell content were not found to be risk factors for OS. In conclusion, prior IFN exposure did not impair BMT or PBSCT outcome.