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Pinheiro Maux Lessa M, Soares Ferreira Junior A, Graton M, Simon E, Ledbetter L, A Onwuemene O. De-novo immune-mediated thrombotic thrombocytopenic purpura following surgical and non-surgical procedures: A systematic review. Blood Rev 2024:101197. [PMID: 38614840 DOI: 10.1016/j.blre.2024.101197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 03/15/2024] [Accepted: 04/05/2024] [Indexed: 04/15/2024]
Abstract
When de-novo immune-mediated thrombotic thrombocytopenic purpura (TTP) is diagnosed following an invasive procedure, clinical presentation patterns and outcomes are poorly defined. Therefore, in a systematic literature review of patients diagnosed with TTP following an invasive surgical or non-surgical procedure, we identified 19 studies reporting data on 25 patients. These data suggest that 1) TTP pathogenesis likely begins prior to the invasive procedure, 2) patients experience significant diagnostic delays, and 3) there is a high incidence of renal replacement therapy. Although invasive procedures may trigger TTP, further studies are needed to clarify the mechanisms underlying this association.
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Affiliation(s)
- Morgana Pinheiro Maux Lessa
- Department of Medicine, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, São Paulo, Brazil
| | | | | | - Erin Simon
- Duke University Medical Center Library, Durham, NC, USA.
| | | | - Oluwatoyosi A Onwuemene
- Division of Hematology, Department of Medicine, Duke University School of Medicine, Durham, NC, USA.
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Soares Ferreira Junior A, Pinheiro Maux Lessa M, Boyle SH, Sanborn K, Kuchibhatla M, Onwuemene OA. Paediatric patients with suspected immune thrombotic thrombocytopenic purpura also experience treatment delays. Br J Haematol 2024; 204:1545-1548. [PMID: 38176420 DOI: 10.1111/bjh.19290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/20/2023] [Accepted: 12/23/2023] [Indexed: 01/06/2024]
Affiliation(s)
| | - Morgana Pinheiro Maux Lessa
- Department of Medicine, Faculdade de Medicina de São José do Rio Preto, São Paulo, São José do Rio Preto, Brazil
| | - Stephen H Boyle
- Duke University School of Medicine, Durham, North Carolina, USA
| | - Kate Sanborn
- Duke Biostatistics, Epidemiology and Research Design Core, Duke University School of Medicine, Durham, North Carolina, USA
| | - Maragatha Kuchibhatla
- Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, North Carolina, USA
| | - Oluwatoyosi A Onwuemene
- Division of Hematology, Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA
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Ferreira AS, Maux Lessa MP, Sanborn K, Kuchibhatla M, Karafin MS, Onwuemene OA. In hospitalized patients undergoing therapeutic plasma exchange, major bleeding prevalence depends on the bleeding definition: An analysis of The Recipient Epidemiology and Donor Evaluation Study-III. J Clin Apher 2023; 38:694-702. [PMID: 37548357 PMCID: PMC10841207 DOI: 10.1002/jca.22080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 07/18/2023] [Accepted: 07/19/2023] [Indexed: 08/08/2023]
Abstract
BACKGROUND Major bleeding in patients undergoing therapeutic plasma exchange (TPE) has been studied in large databases; but without standardizing bleeding definitions. Therefore, we used standardized definitions to evaluate major bleeding in hospitalized patients undergoing TPE using public use data files from the Recipient Epidemiology and Donor Evaluation Study-III (REDS-III). STUDY DESIGN AND METHODS In a retrospective cross-sectional analysis, we identified TPE-treated adults in a first inpatient encounter. We evaluated major bleeding prevalence using (1) International Classification of Diseases (ICD) or Current Procedural Terminology (CPT) codes, (2) packed red blood cell (PRBC) transfusion, or (3) hemoglobin (Hgb) decline. Patients with major bleeding prior to their first TPE were excluded from the analysis. RESULTS Among 779 patients undergoing TPE, major bleeding by at least one of the three bleeding definitions occurred in 135 patients (17.3%). For each of the ICD/CPT, PRBC, and Hgb definitions, the prevalence of major bleeding was 2.8% (n = 31), 7.4% (n = 81), and 5.4% (n = 59), respectively. Only 3.7% of bleeds (5/135) were captured by all three definitions and 19.3% (26/135) exclusively by any two pairwise definitions. The addition of PRBC transfusion and Hgb decline to ICD/CPT code definitions increased bleeding prevalence threefold. CONCLUSION Among hospitalized adults undergoing TPE in the REDS-III study, the prevalence of major bleeding was 17.3%. The addition of PRBC and Hgb decline to ICD codes increased bleeding prevalence threefold. Future studies are needed to develop validated models that identify patients at risk for major bleeding during TPE.
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Affiliation(s)
- Alexandre Soares Ferreira
- Department of Medicine, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, São Paulo, Brazil
| | - Morgana Pinheiro Maux Lessa
- Department of Medicine, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, São Paulo, Brazil
| | - Kate Sanborn
- Duke Biostatistics, Epidemiology and Research Design Core, Duke University School of Medicine, Durham, North Carolina, USA
| | - Maragatha Kuchibhatla
- Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, North Carolina, USA
| | - Matthew S Karafin
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Oluwatoyosi A. Onwuemene
- Division of Hematology, Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA
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Soares Ferreira Junior A, Pinheiro Maux Lessa M, Kaplan S, Coles TM, Terrell DR, Onwuemene OA. Patient-Reported Outcome Measures in Patients with Thrombotic Thrombocytopenic Purpura: A Systematic Review of the Literature. J Clin Med 2023; 12:5155. [PMID: 37568558 PMCID: PMC10420299 DOI: 10.3390/jcm12155155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023] Open
Abstract
Health-related quality of life (HRQoL) impacts of thrombotic thrombocytopenic purpura (TTP) have been captured in clinical studies using patient-reported outcome (PRO) measures (PROMs) that are validated for other diseases. However, the validity evidence to support the use of existing PROMs in patients with TTP is unknown. In a systematic review of the literature, including studies of adults and children with TTP, we assessed the validity evidence for use of PROMs in clinical research and clinical practice, characterized HRQoL, described the integration of PROMs in clinical practice and evaluated PRO scores for patients with TTP compared with reference populations. From an initial 4518 studies, we identified 14 studies using 16 PROMs to assess general HRQoL domains in patients in remission. No identified studies assessed the validity of PROMs for the context of use of TTP and no studies described PROM integration into TTP clinical practice or evaluated PROMs that were specific for patients with TTP. Moreover, PRO scores were worse in patients with TTP compared with reference populations and other chronic conditions. We conclude that, in patients with TTP, PROMs pick up on important patient experiences not captured by clinical outcomes at present. There is, therefore, a need for studies that assess the validity of existing PROMs in patients with TTP to determine if TTP-specific PROMs specific to patients with TTP should be developed.
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Affiliation(s)
| | - Morgana Pinheiro Maux Lessa
- Department of Medicine, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto 15090-000, São Paulo, Brazil
| | - Samantha Kaplan
- Medical Center Library & Archives, Duke University Medical Center, Durham, NC 27710, USA;
| | - Theresa M. Coles
- Department of Population Health Sciences, Duke University School of Medicine, Durham, NC 27710, USA;
| | - Deirdra R. Terrell
- Department of Biostatistics and Epidemiology, Hudson College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA;
| | - Oluwatoyosi A. Onwuemene
- Division of Hematology, Department of Medicine, Duke University School of Medicine, Durham, NC 27710, USA
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Soares Ferreira Junior A, Pinheiro Maux Lessa M, Boyle SH, Sanborn K, Kuchibhatla M, Onwuemene OA. In patients with suspected immune TTP, admission source impacts hospital length of stay and time to therapeutic plasma exchange impacts clinical outcomes. Thromb Res 2023; 227:34-39. [PMID: 37210956 DOI: 10.1016/j.thromres.2023.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 03/24/2023] [Accepted: 05/01/2023] [Indexed: 05/23/2023]
Abstract
INTRODUCTION When immune thrombotic thrombocytopenic purpura (TTP) is suspected, outcomes are impacted by time to therapeutic plasma exchange (TPE). We evaluated the impact of time to TPE on outcomes in suspected TTP cases admitted through the Emergency Department (ED) vs. transferred from another facility (Transfer). MATERIALS AND METHODS In a retrospective analysis of the National Inpatient Sample, we examined the association between TTP outcomes and admission source (ED vs. Transfer) for the primary outcome of time to TPE. A second stratified analyses within each analytic group examined the association of time to TPE (<1 day, 1 day, 2 days, and >2 days) and outcomes for the composite outcome of mortality, major bleeding and thrombosis. RESULTS Of 1195 cases, 793 (66 %) were admitted through the ED and 402 (34 %) were transferred. Compared to ED cases, Transfers had a longer hospital length of stay (14.69 vs. 16.65 days, p = 0.0060). For ED cases, TPE after >2 days was associated with higher odds of the composite outcome (OR = 1.68 95 % CI: 1.11-2.54; p = 0.0150) and mortality (OR = 3.01 95 % CI: 1.38-6.57; p = 0.0056). For Transfers, TPE on day 2 was associated with higher odds of the composite outcome (OR = 3.00 95 % CI: 1.31-6.89; p = 0.0096) and mortality (OR = 4.95 95 % CI: 1.12-21.88; p = 0.0350). CONCLUSIONS In suspected TTP admitted through the ED or transferred, there was no significant difference in time to TPE. A longer time to TPE was associated with worse outcomes. Future studies should evaluate strategies to decrease initial time to TPE.
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Affiliation(s)
| | - Morgana Pinheiro Maux Lessa
- Department of Medicine, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, São Paulo, Brazil
| | | | - Kate Sanborn
- Duke Biostatistics, Epidemiology and Research Design Core, Duke University School of Medicine, Durham, NC, USA
| | - Maragatha Kuchibhatla
- Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, NC, USA
| | - Oluwatoyosi A Onwuemene
- Division of Hematology, Department of Medicine, Duke University School of Medicine, Durham, NC, USA.
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