26
|
Perseghin P, Mascaretti L, Riva M, Sciorelli G. Comparison of plateletpheresis concentrates produced with Spectra LRS version 5.1 and LRS Turbo version 7.0 cell separators. Transfusion 2000; 40:789-93. [PMID: 10924605 DOI: 10.1046/j.1537-2995.2000.40070789.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND The importance of transfusing WBC-reduced blood components is widely recognized, as it reduces the risk of alloimmunization and transfusion-transmitted CMV infections. The latest generation of cell separators allows the collection of WBC-reduced apheresis platelet concentrates (APCs). MATERIALS AND METHODS Consecutive APCs (n = 232) were retrospectively evaluated: 163 collected with the Spectra LRS [leukocyte-reduction system] Version 5.1 (Group A) and 69 with the LRS Turbo Version 7.0 (Group B) (both: COBE BCT). Donor peripheral blood count, procedure data, platelet yield, collection efficiency (CE), and residual WBC count in APCs were recorded. RESULTS The platelet yield was higher in Group B than in Group A: 5.5 +/- 1.4 versus 4.4 +/- 1.1, p<0.0001; residual WBCs were <5 x 10(6) in 99.4 percent of Group A APCs and in 97.1 percent of Group B APCs. CE was higher in Group B than in Group A: 51.4 +/- 8.7 versus 43.6 +/- 6.3, p<0.0001. Moreover, a correlation between predonation platelet count and platelet yield was observed in both groups. A double product (platelet yield >6.0 x 10(11)) was obtained in 28.9 percent of Group B APCs and in 9.2 percent of Group A APCs. CONCLUSIONS The Spectra LRS Turbo version 7.0 release showed a better CE and resulted in a higher platelet harvest than did the LRS version 5.1. High predonation platelet counts allow a higher platelet yield.
Collapse
|
27
|
Poli F, Mascaretti L, Scalamogna M, Crespiatico L, Cagni N, Sioli V, Sirchia G. HLA-DRB1 typing does not prolong cold ischemia time and affects outcome in cadaver kidney transplantation. Transplant Proc 1997; 29:1397-400. [PMID: 9123353 DOI: 10.1016/s0041-1345(96)00608-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
28
|
Mascaretti L, Poli F, Scalamogna M, Cattaneo R, Rossini G, Pappalettera M, Sirchia G. HLA-DR matching defined by DNA typing in heart transplantation. Transplant Proc 1997; 29:1464-6. [PMID: 9123382 DOI: 10.1016/s0041-1345(96)00571-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
29
|
|
30
|
Cardillo M, Mascaretti L, Pizzi C, Piccolo G, Lecchi L, Aniasi A, Puglisi G, Scalamogna M, Sirchia G. Donor organ procurement in the North Italy Transplant program (NITp) in 1994: the beginning of a promising trend? Transpl Int 1996. [DOI: 10.1111/j.1432-2277.1996.tb01676.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
31
|
Rossini G, Trezzi D, Scarpino C, Scerini D, Mascaretti L, Scalamogna M, Sirchia G. HLA antibody screening: A comparison between ELISA and the NIH assay. Hum Immunol 1996. [DOI: 10.1016/0198-8859(96)85419-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
32
|
Cardillo M, Mascaretti L, Pizzi C, Piccolo G, Lecchi L, Aniasi A, Puglisi G, Scalamogna M, Sirchia G. Donor organ procurement in the North Italy Transplant program (NITp) in 1994: the beginning of a promising trend? Transpl Int 1996; 9 Suppl 1:S460-3. [PMID: 8959886 DOI: 10.1007/978-3-662-00818-8_110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Donor organ procurement is a world-wide problem. In Italy it is particularly so and the reasons for this are investigated. An overall increase in the number of donors has been noted in 1994 and the first 8 months of 1995, and ways of continuing this encouraging trend should be pursued by improvements in education, legislation, and hospital organization.
Collapse
|
33
|
Poli F, Mascaretti L, Pappalettera M, Scalamogna M, Bernardi L, Sirchia G. HLA-DRB1 compatibility in cadaver kidney transplantation: correlation with graft survival and function. Transpl Int 1995. [DOI: 10.1111/j.1432-2277.1995.tb01482.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
34
|
Poli F, Mascaretti L, Pappalettera M, Scalamogna M, Bernardi L, Sirchia G. HLA-DRB1 compatibility in cadaver kidney transplantation: correlation with graft survival and function. Transpl Int 1995; 8:91-5. [PMID: 7766303 DOI: 10.1007/bf00344417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The introduction of genomic HLA-DR typing has stimulated a re-evaluation of the role of HLA-DR compatibility on cadaver kidney transplantation. We retrospectively studied the influence of HLA-DRB1 matching on the survival of 416 patients using univariate and Cox regression analysis as well as its influence on the occurrence of rejection episodes and on creatinine level at the 3rd month in the 198 recipients for whom these data were available. The following parameters were also considered: HLA-A,B compatibility, donor and recipient age, graft number, pre-transplant blood transfusions and panel reactive antibodies (PRA). Twenty-four month graft survival was 100% for transplants with zero mismatches (n = 47), 87.9% for those with one mismatch (n = 191) and 81.3% for those with two mismatches (n = 178). In the Cox model, HLA-DRB1 matching was the most significant variable influencing graft survival (47% of chi 2 P = 0.001), followed by HLA-A,B matching (23%, P = 0.02) and donor age (19%, P = 0.04). Ninety-two percent of the patients with zero mismatches experienced no rejection episodes in the first 3 posttransplant months compared with 62% and 41% of patients with one and two mismatches, respectively. Mean creatinine level (mg/dl) was 1.2, 1.4, and 1.5 in patients with zero, one, and two mismatches, respectively. Should these results be confirmed by prospective studies, HLA-DRB1 compatibility will have to be considered as an organ allocation criterion.
Collapse
|
35
|
Mascaretti L, Sioli V, Puglisi G, Rossini G, Trezzi D, Scarpino C, Scalamogna M, Sirchia G. Pretransplant flow cytometry crossmatch in first cadaveric kidney transplants. Transplant Proc 1995; 27:668-70. [PMID: 7879138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
36
|
Poli F, Scalamogna M, Mascaretti L, Pappalettera M, Nocco A, Crespiatico L, Cattaneo R, Lecchi L, Sirchia G. Genomic HLA-DR compatibility in solid organ transplantation: a retrospective analysis of 1209 cases. Transplant Proc 1995; 27:647-50. [PMID: 7879130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
37
|
Poli F, Scalamogna M, Mascaretti L, Tarantino A, Pappalettera M, Nocco A, Sirchia G. Genomic HLA-DR compatibility in long-term surviving recipients of cadaver kidney transplants. Transplantation 1993; 56:97-100. [PMID: 8333075 DOI: 10.1097/00007890-199307000-00017] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The finding that HLA-DR compatibility assessed by DNA typing correlates with short-term graft outcome better than serology prompted us to study the degree of genomic HLA-DR compatibility on 55 patients with a graft functioning for more than 10 years (group A), compared with 82 patients with more recent transplants regardless of survival (group B). Because adequate blood donor samples were not available for group A long-term survivors, we used donor renal cells obtained by fine needle aspiration biopsy as a source of DNA. We found that in long-term survivors, the distribution of HLA-DR mismatches was significantly different from that observed in group B patients. In particular, whereas a similar proportion of patients with 1 mismatch was seen in both groups, 27.3% of group A patients vs. 6.1% of group B patients had no mismatch, and 23.6% of group A vs. 41.5% of group B patients received transplants with no HLA-DR compatibility (P = 0.001). We also investigated a possible correlation between number of incompatibilities and graft function. Well-matched patients received less steroid pulses than less well-matched recipients, and steroid-resistant rejection episodes were more common among less well-matched recipients. These results suggest a prognostic role of genomic HLA-DR compatibility on long-term success of cadaver kidney transplantation.
Collapse
|
38
|
Poli F, Scalamogna M, Pappalettera M, Mascaretti L, Angela AN, Sirchia G. Efficacy of sequence-specific oligotyping in determining HLA-DR compatibility in cadaver kidney transplantation. The North Italy Transplant Program Working Group on Improvement of Kidney Transplantation. Transplant Proc 1993; 25:203-5. [PMID: 8438271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
|
39
|
Mascaretti L, Sioli V, Rossini G, Puglisi G, Scarpino C, Cagni N, Brambilla C, Scalamogna M. Pretransplant immunological evaluation in live-donor kidney transplantation. Hum Immunol 1993. [DOI: 10.1016/0198-8859(93)90078-f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
40
|
Poli F, Scalamogna M, Mascaretti L, Nocco A, Sirchia G. HLA-DR typing of organ donors and allograft recipients by SSO typing: correlation with serotyping in the North Italy Transplant Program. Transpl Int 1993. [DOI: 10.1111/j.1432-2277.1993.tb00748.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
41
|
Poli F, Scalamogna M, Mascaretti L, Nocco A, Sirchia G. HLA-DR typing of organ donors and allograft recipients by SSO typing: correlation with serotyping in the North Italy Transplant Program. Transpl Int 1993; 6:58-9. [PMID: 8452635 DOI: 10.1007/bf00336643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
|
42
|
Poli F, Scalamogna M, Pappalettera M, Mascaretti L, Nocco A, Crespiatico L, Sirchia G. HLA-DR matching defined by SSO-typing in heart transplantation. Transplant Proc 1992; 24:2436-7. [PMID: 1465820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
43
|
Tarantino A, Aroldi A, Stucchi L, Montagnino G, Mascaretti L, Vegeto A, Ponticelli C. A randomized prospective trial comparing cyclosporine monotherapy with triple-drug therapy in renal transplantation. Transplantation 1991; 52:53-7. [PMID: 1858154 DOI: 10.1097/00007890-199107000-00011] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
In a prospective trial 151 recipients of renal transplants were randomly assigned to treatment with CsA alone (74 patients) and to low dose of AZA, prednisolone, and CsA (77 patients). At two years, graft survival was 84% for the monotherapy and 90% for the triple therapy. This difference was not statistically significant. The number of rejection episodes was similar in the two groups, but the severity of rejection was significantly worse among the patients on monotherapy. More kidneys were lost because of rejection (6 versus 3), and a higher number of methylprednisolone pulses was used for treating rejection (5.2 +/- 2.3 versus 4.3 +/- 2.9; P = 0.0077). CsA nephrotoxicity episodes were more frequent among patients on monotherapy (23 versus 7; P less than 0.02). Infectious episodes were equally distributed between the two groups. Creatinine clearance was poorer in the monotherapy-treated patients at the third month (42 +/- 16 ml/min versus 48 +/- 15 ml/min; P = 0.02), but no differences were observed between the two groups since the sixth month after transplantation. Many patients on monotherapy required changes in maintenance therapy. In fact, one patient was switched to conventional immunosuppression because of Cremophor-induced anaphylaxis. Another patient who developed Kaposi's sarcoma 4 months after surgery was switched to steroids alone. Excluding 5 patients who lost their grafts a few days after transplantation, only 30 of 74 patients (40%) could be kept without steroids. We conclude that both the therapeutic protocols can give good results in renal allotransplantation; however, monotherapy could create some problems in keeping the balance between drug toxicity and significant immunosuppression. On the contrary, triple therapy is easier to handle, especially in the early posttransplant period when the differential diagnosis between acute rejection and CsA-related nephrotoxicity can be difficult even for a skilled clinician.
Collapse
|
44
|
Mascaretti L, Pappalettera M, Pizzi C, Bossi G, Scalamogna M, Sirchia G. Four years of heart transplantation in the North Italy Transplant program (NITp). Transplant Proc 1991; 23:1186-8. [PMID: 1989182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
45
|
Elli A, Rivolta R, Palazzi P, Mascaretti L, Puglisi G, Parenti M, Sioli V, Di Palo FQ. Deflazacort versus 6-methylprednisolone in renal transplantation: immunosuppressive activity and side effects. Transplant Proc 1990; 22:1689-90. [PMID: 2202126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
46
|
Mascaretti L, Pappalettera M, Gravame V, Chiecca R, Scalamogna M, Sirchia G. Cadaver kidney transplantation using donors with hypertension in the North Italy Transplant program. Transplant Proc 1990; 22:382. [PMID: 2326925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
47
|
Pizzi C, Poti F, Boselli L, Mascaretti L, Zappalalio P, Sirchia G. Organ donation in the North Italy Transplant program. Transplant Proc 1990; 22:333-4. [PMID: 2326904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
48
|
Sirchia G, Scalamogna M, Mascaretti L, Poli F, Pizzi C, Bossi G. The North Italy Transplant program's organization, policies and activity: problems and proposals for the 1990's. TISSUE ANTIGENS 1989; 34:78-83. [PMID: 2815058 DOI: 10.1111/j.1399-0039.1989.tb01719.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
49
|
Mozzi F, Zanella A, Bellobuono A, Vianello L, Melotti S, Mascaretti L, Poli F, Lecchi L, Sirchia G. Clinical and laboratory follow-up of asymptomatic blood donors with only anti-HIV 'core' antibodies. Vox Sang 1988; 54:188-9. [PMID: 3259349 DOI: 10.1111/j.1423-0410.1988.tb03899.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
50
|
Mozzi F, Zanella A, Bellobuono A, Vianello L, Melotti S, Mascaretti L, Poli F, Lecchi L, Sirchia G. Clinical and Laboratory Follow-Up of Asymptomatic
Blood Donors with only Anti-HIV ‘Core’ Antibodies. Vox Sang 1988. [DOI: 10.1159/000461799] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|