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Ladhani SN, Fernandes S, Garg M, Borrow R, de Lusignan S, Bolton-Maggs PHB. Prevention and treatment of infection in patients with an absent or hypofunctional spleen: A British Society for Haematology guideline. Br J Haematol 2024; 204:1672-1686. [PMID: 38600782 DOI: 10.1111/bjh.19361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/13/2024] [Accepted: 02/15/2024] [Indexed: 04/12/2024]
Abstract
Guidelines for the prevention and treatment of infection in patients with an absent or dysfunctional spleen were published by the British Committee for Standards in Haematology in 1996 and updated in 2002 and 2011. With advances in vaccinations and changes in patterns of infection, the guidelines required updating. Key aspects included in this guideline are the identification of patients at risk of infection, patient education and information and immunisation schedules. This guideline does not address the non-infective complications of splenectomy or functional hyposplenism (FH). This replaces previous guidelines and significantly revises the recommendations related to immunisation. Patients at risk include those who have undergone surgical removal of the spleen, including partial splenectomy and splenic embolisation, and those with medical conditions that predispose to FH. Immunisations should include those against Streptococcus pneumoniae (pneumococcus), Neisseria meningitidis (meningococcus) and influenza. Haemophilus influenzae type b (Hib) is part of the infant immunisation schedule and is no longer required for older hyposplenic patients. Treatment of suspected or proven infections should be based on local protocols and consider relevant anti-microbial resistance patterns. The education of patients and their medical practitioners is essential, particularly in relation to the risk of serious infection and its prevention. Further research is required to establish the effectiveness of vaccinations in hyposplenic patients; infective episodes should be regularly audited. There is no single group ideally placed to conduct audits into complications arising from hyposplenism, highlighting a need for a national registry, as has proved very successful in Australia or alternatively, the establishment of appropriate multidisciplinary networks.
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Affiliation(s)
- Shamez N Ladhani
- Centre for Neonatal and Paediatric Infections (CNPI), St. George's University of London, London, UK
- Immunisation and Countermeasures Division, UK Health Security Agency Colindale, London, UK
| | - Savio Fernandes
- Department of Haematology, Dudley Group Foundation NHS Trust, Russell's Hall Hospital, Dudley, UK
| | - Mamta Garg
- Leicester Royal Infirmary, Leicester, UK
| | - Ray Borrow
- Vaccine Evaluation Unit, UK Health Security Agency, Manchester Royal Infirmary, Manchester, UK
| | - Simon de Lusignan
- Nuffield Department of Primary Care Health Sciences, Royal College of General Practitioners (RCGP) Research and Surveillance Centre (RSC), University of Oxford, Oxford, UK
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Xie L, Chen Z, Guo H, Tao Y, Miao X, Wu R, Li Y. Congenital Asplenia Interrupts Immune Homeostasis and Leads to Excessive Systemic Inflammation in Zebrafish. Front Cell Infect Microbiol 2021; 11:668859. [PMID: 34262881 PMCID: PMC8274418 DOI: 10.3389/fcimb.2021.668859] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 05/10/2021] [Indexed: 11/26/2022] Open
Abstract
Splenectomy or congenital asplenia in humans increases susceptibility to infections. We have previously reported that congenital asplenia in zebrafish reduces resistance to Aeromonas hydrophila infection. However, the molecular mechanism of systemic immune response in congenitally asplenic individuals is largely unexplored. In this study, we found that pro-inflammatory cytokines were more highly induced in congenitally asplenic zebrafish than wild-type after pathogenic A. hydrophila infection and lipopolysaccharide exposure. In addition, a higher aggregation of apoptotic cells was observed in congenitally asplenic zebrafish than that in wild-type. Next, we examined the transcriptome profiles of whole kidneys from wild-type and congenitally asplenic zebrafish to investigate the effects of congenital asplenia on innate and adaptive immune responses induced by the inactivated A. hydrophila. Congenital asplenia inactivated the splenic anti-inflammatory reflex, disrupted immune homeostasis, and induced excessive inflammation as evidenced by the highly induced stress response–related biological processes, inflammatory and apoptosis-associated pathways, and pro-inflammatory cytokines/chemokines in congenitally asplenic zebrafish compared with wild-type after vaccination. In addition, complement component genes (c3a.1, c3a.6, c4, c6, and c9) and several important immune-related genes (tabp.1, tap1, hamp, prg4b, nfil3, defbl1, psmb9a, tfr1a, and sae1) were downregulated in congenitally asplenic zebrafish. Furthermore, congenital asplenia impaired adaptive immunity as demonstrated by downregulation of biological processes and signaling pathways involved in adaptive immune response after vaccination in congenitally asplenic zebrafish. The expression of MHCII/IgM was also significantly reduced in the congenitally asplenic zebrafish when compared with wild-type. Together, our study provides an in-depth understanding of spleen function in controlling immune homeostasis and may offer insight into the pathological response in splenectomized or congenitally asplenic patients after infections.
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Affiliation(s)
- Lang Xie
- Institute of Three Gorges Ecological Fisheries of Chongqing, College of Fisheries, Southwest University, Chongqing, China
| | - Zheyu Chen
- Institute of Three Gorges Ecological Fisheries of Chongqing, College of Fisheries, Southwest University, Chongqing, China
| | - Hui Guo
- Institute of Three Gorges Ecological Fisheries of Chongqing, College of Fisheries, Southwest University, Chongqing, China
| | - Yixi Tao
- Institute of Three Gorges Ecological Fisheries of Chongqing, College of Fisheries, Southwest University, Chongqing, China
| | - Xiaomin Miao
- Institute of Three Gorges Ecological Fisheries of Chongqing, College of Fisheries, Southwest University, Chongqing, China
| | - Ronghua Wu
- Institute of Three Gorges Ecological Fisheries of Chongqing, College of Fisheries, Southwest University, Chongqing, China.,Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), The Key Laboratory of Aquatic Science of Chongqing, Southwest University, Chongqing, China
| | - Yun Li
- Institute of Three Gorges Ecological Fisheries of Chongqing, College of Fisheries, Southwest University, Chongqing, China.,Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), The Key Laboratory of Aquatic Science of Chongqing, Southwest University, Chongqing, China
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Albrecht T, Poss K, Issaranggoon Na Ayuthaya S, Triden L, Schleiss KL, Schleiss MR. Case report of congenital asplenia presenting with Haemophilus influenzae type a (Hia) sepsis: an emerging pediatric infection in Minnesota. BMC Infect Dis 2019; 19:947. [PMID: 31703560 PMCID: PMC6842177 DOI: 10.1186/s12879-019-4572-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 10/16/2019] [Indexed: 01/26/2023] Open
Abstract
Background In the pre-vaccine era, invasive disease with Haemophilus influenzae, type b (Hib) commonly presented with osteoarticular involvement. Haemophilus influenzae, type a (Hia) sepsis is a rare but emerging problem in recent years. Here, we report a case of sepsis with concomitant osteoarthritis due to Hia that was the presenting infectious disease manifestation of isolated asplenia in a young child. This unique observation adds to our understanding of sepsis and asplenia in children. Case presentation A five-year-old girl developed acute Hia bacteremia and sepsis. The patient developed arthritis shortly after onset of septic shock. Arthrocentesis was culture-negative, but given the difficulty differentiating between septic and reactive arthritis, prolonged antibiotic administration was provided for presumed osteoarticular infection, and the patient had an uneventful recovery. The finding of Howell-Jolly bodies on blood smear at the time of presentation prompted an evaluation that revealed isolated congenital asplenia. Evaluation for known genetic causes of asplenia was unrevealing. Investigation by the Minnesota Department of Health revealed an emergence of Hia infections over the past 5 years, particularly in children with an American Indian background. Conclusions Hia is an important pathogen in the differential diagnosis of invasive bacterial infections in children and shares overlap in clinical presentation and pathogenesis with Hib. Invasive Hia disease can be a presenting manifestation of asplenia in children. Hia is an emerging pathogen in American Indian children.
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Affiliation(s)
- Tiffany Albrecht
- Department of Pediatrics, University of Minnesota Masonic Children's Hospital, 2450 Riverside Ave, Minneapolis, MN, 55454, USA
| | - Kristina Poss
- University of Minnesota Medical School, 420 Delaware Street SE, Minneapolis, MN, 55455, USA.,Present address: Department of Pediatrics, Lincoln Medical Center, 234 E 149th Street, The Bronx, NY, 10451, USA
| | - Satja Issaranggoon Na Ayuthaya
- Department of Pediatrics, University of Minnesota Masonic Children's Hospital, 2450 Riverside Ave, Minneapolis, MN, 55454, USA.,Present address: Children's National Medical Center, 111 Michigan Ave NW, Washington, DC, 20010, USA
| | - Lori Triden
- Minnesota Department of Health, Infectious Diseases, Epidemiology and Control Division, 625 Robert Street N, Saint Paul, MN, 55155, USA
| | - Katherine L Schleiss
- Minnesota Department of Health, Infectious Diseases, Epidemiology and Control Division, 625 Robert Street N, Saint Paul, MN, 55155, USA
| | - Mark R Schleiss
- Department of Pediatrics, University of Minnesota Masonic Children's Hospital, 2450 Riverside Ave, Minneapolis, MN, 55454, USA.
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Palumbo V, Mannino M, Teodoro M, Menconi G, Schembari E, Corsale G, Di Carlo I, Toro A. An extremely rare case of an oversized accessory spleen: case report and review of the literature. BMC Surg 2019; 19:45. [PMID: 31029135 PMCID: PMC6487026 DOI: 10.1186/s12893-019-0510-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 04/16/2019] [Indexed: 11/24/2022] Open
Abstract
Background The accessory spleen is a congenital defect characterized by a separated ectopic splenic parenchyma. The size is rarely more than 4 cm. The preoperative diagnosis is prohibitive preoperatively. The aims of the present manuscript were to present the case of a patient with a rare oversize accessory spleen and a review of the literature. Case presentation A 15-year-old boy was admitted to the emergency department following blunt abdominal trauma. The computed tomographic scan showed a traumatic rupture of the spleen and a 7-cm mass at the left side of the retroperitoneal space. Conservative treatment started and aborted after 4 h due to the onset of haemodynamic instability. Splenectomy was performed. An accessory spleen was discovered. A second large mass in the retroperitoneum was diagnosed as a second large accessory spleen that was also left in place. The postoperative course was uneventful, and the patient was discharged on the 7th postoperative day. Seven months later, the CT scan showed viability of both accessory spleens. Conclusion An accessory spleen can be variously located and the retroperitoneal position is extremely uncommon. Preoperative diagnosis is still difficult, especially in emergency and as in our case, the literature shows the difficulty of reaching a diagnosis before surgery. The main misdiagnosis is neoplastic disease and for this reason accessory spleen can be wrongly removed. An undiagnosed pre or intra operative retroperitoneal mass, closely to the spleen, have to be managed carefully. The diagnosis of accessory spleen needs to be ever considered as if found, represents a great possibility to conduct a normal life after splenectomy (of main spleen) for trauma.
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Affiliation(s)
- V Palumbo
- Department of Surgical Sciences and Advanced Technologies "GF Ingrassia", University of Catania, Cannizzaro Hospital, Via Messina 829, 95126, Catania, Italy
| | - M Mannino
- Department of Surgical Sciences and Advanced Technologies "GF Ingrassia", University of Catania, Cannizzaro Hospital, Via Messina 829, 95126, Catania, Italy
| | - M Teodoro
- Department of Surgical Sciences and Advanced Technologies "GF Ingrassia", University of Catania, Cannizzaro Hospital, Via Messina 829, 95126, Catania, Italy
| | - G Menconi
- Department of Surgical Sciences and Advanced Technologies "GF Ingrassia", University of Catania, Cannizzaro Hospital, Via Messina 829, 95126, Catania, Italy
| | - E Schembari
- Department of Surgical Sciences and Advanced Technologies "GF Ingrassia", University of Catania, Cannizzaro Hospital, Via Messina 829, 95126, Catania, Italy
| | - G Corsale
- Department of Radiology, Cannizzaro Hospital, Catania, Italy
| | - I Di Carlo
- Department of Surgical Sciences and Advanced Technologies "GF Ingrassia", University of Catania, Cannizzaro Hospital, Via Messina 829, 95126, Catania, Italy.
| | - A Toro
- Department of General Surgery, E. Muscatello Hospital, Augusta, (SR), Italy
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Fulminant Haemophilus Influenzae Type a Infection in a 4-year-old with Previously Undiagnosed Asplenic Heterotaxy. Pediatr Infect Dis J 2018; 37:e108-e110. [PMID: 28858039 DOI: 10.1097/inf.0000000000001758] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The post Hib-vaccine era has resulted in increased cases of invasive, non-Hib, Haemophilus influenzae infections. One of the encapsulated species, type a, displays the most similarity in virulence to type b. Our patient, a fully vaccinated 4-year-old female, with newly diagnosed asplenia in the setting of heterotaxy, had a prolonged hospital course with disseminated Haemophilus influenzae type a infection.
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Araújo NC, Orlando MMC, Neves MB, Rioja SS, de Lucena SBG, Mandarim-de-Lacerda CA. Howell-Jolly bodies and liver-spleen scanning for assessment of splenic filtrative function yields discordant results in renal transplant recipients. Medicine (Baltimore) 2017; 96:e9242. [PMID: 29390481 PMCID: PMC5758183 DOI: 10.1097/md.0000000000009242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Given discrepancies between methods for diagnosing hyposplenism, the purpose of this study was to evaluate the effect of the spleen size on the correlation between the methods, and to propose a model for improving the interpretation. Patients with renal allografts were included, in whom the spleen was assessed using Doppler ultrasound, scintiscan, and the presence of Howell-Jolly bodies (HJBs) in peripheral smears. In 35 subjects, scintiscan and HJBs were normal (Group 0); 20 had an abnormal result in both methods (Group 1); 34 had discordant results with HJBs present (Group 2); and 14 had discordant results with decreased spleen uptake (Group 3). There was no association between HJBs and scintiscan. The patients of Groups 1 and 2 had smaller spleens. The patients with smaller spleen had more hematological evidence of hyposplenism and exhibit smaller discrepancies between the methods than patients with larger spleen. The spleen can tip the balance from a normal to impaired function provided that the spleen size is below the critical mass required to maintain splenic function. A mild impairment of phagocytic function and slight dyserythropoiesis along with a small spleen would result in decreased take up of radiocolloid or the appearance of HJBs in blood smears.
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Araújo NC, Neves MB, Mandarim-de-Lacerda CA, Orlando MMC. Assessment of Spleen Filtrate Function in Renal Transplant Recipients Using Technetium-99m Stannous Colloid Liver-Spleen Scan. Transplant Proc 2017; 49:1301-1306. [PMID: 28735998 DOI: 10.1016/j.transproceed.2017.02.061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 02/07/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND Functional hyposplenism (FH) is indicated by an anatomically present spleen that fails to take up radiolabeled colloid. The occurrence of FH has been reported in a small group of renal transplant recipients based on hematologic parameters. The aim of this study was to replicate this association in a larger group of renal transplant recipients with the use of technetium-99m-stannous colloid liver-spleen scan to assess the spleen function. METHODS This survey based on single samples enrolled 101 unselected adult patients with functional kidney grafts >180 days after transplantation. All patients underwent 99mTc-stannous colloid scan to assess spleen function as well as bone marrow uptake of radiocolloid along with an anatomic and blood flow study of the spleen and kidney with the use of Doppler sonography. RESULTS The prevalence of hyposplenism was 32.7% (33/101) for the cohort, and increased uptake of radiocolloid by the bone marrow was seen in 9.9% (10/101). According to the multivariate analysis, the frequency of hyposplenism was significantly influenced by indirect bilirubin and hemoglobin, and direct bilirubin and neutrophil count remained as independent predictors of bone marrow uptake. CONCLUSIONS This study demonstrated that a group of renal transplant recipients has FH. In addition, bone marrow uptake might be interpreted as liver dysfunction. In this situation, the small amount of contrast (spleen compared with liver) would leave hyposplenism undiagnosed. Further prospective and longitudinal clinical studies are needed to determine the clinical impact of this condition on the management of renal transplant recipients.
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Affiliation(s)
- N C Araújo
- Division of Nephrology, University of the State of Rio de Janeiro, Rio de Janeiro, Brazil.
| | - M B Neves
- Division of Nuclear Medicine, University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - M M C Orlando
- Division of Nuclear Medicine, University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
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Varga I, Babala J, Kachlik D. Anatomic variations of the spleen: current state of terminology, classification, and embryological background. Surg Radiol Anat 2017. [DOI: 10.1007/s00276-017-1893-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Nickel RS, Seashore E, Lane PA, Alazraki AL, Horan JT, Bhatia M, Haight AE. Improved Splenic Function After Hematopoietic Stem Cell Transplant for Sickle Cell Disease. Pediatr Blood Cancer 2016; 63:908-13. [PMID: 26757445 DOI: 10.1002/pbc.25904] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 12/15/2015] [Accepted: 12/17/2015] [Indexed: 01/06/2023]
Abstract
BACKGROUND Splenic dysfunction is a significant complication of sickle cell disease (SCD). Hematopoietic stem cell transplant (HSCT) is a proven cure for SCD; however, its long-term effect on splenic function is not well characterized. PROCEDURE We conducted a retrospective cohort study of pediatric patients who had HSCT for SCD at two transplant centers. (99m) Tc liver-spleen (LS) scans were blindly reviewed and classified as demonstrating absent, decreased, or normal splenic uptake. RESULTS Considering all engrafted nonsplenectomized Hb SS and Sβ(0) -thalassemia patients with LS scans available, at a median of 2.0 years post-HSCT (range 1.0-9.3 years) eight of 53 (15%) had normal, 40 of 53 (75%) decreased, and five of 53 (9%) absent splenic uptake. More patients had splenic uptake after HSCT: pre-HSCT 14/38 (37%) versus post-HSCT 34/38 (89%), P < 0.0001. Older age at HSCT was associated with worse splenic function post-HSCT (median age at HSCT for absent uptake 16.6 years vs. present uptake 8.0 years, P = 0.030). Extensive chronic GVHD was also more common in patients with absent splenic uptake compared to patients with present uptake (absent 40% vs. present 6%, P = 0.064). CONCLUSIONS HSCT significantly improves splenic function for most pediatric patients with SCD, but older patient age at time of HSCT and extensive chronic GVHD appear to be risk factors for poor post-HSCT splenic function.
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Affiliation(s)
- Robert Sheppard Nickel
- Division of Hematology, Children's National Health System, Washington, District of Columbia
| | - Elizabeth Seashore
- Division of Pediatric Hematology, Oncology and Stem Cell Transplantation, Morgan Stanley Children's Hospital of New York Presbyterian, Columbia University Medical Center, New York, New York
| | - Peter A Lane
- Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Emory University, Atlanta, Georgia
| | - Adina L Alazraki
- Department of Radiology and Imaging Sciences, Emory University, Atlanta, Georgia
| | - John T Horan
- Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Emory University, Atlanta, Georgia
| | - Monica Bhatia
- Division of Pediatric Hematology, Oncology and Stem Cell Transplantation, Morgan Stanley Children's Hospital of New York Presbyterian, Columbia University Medical Center, New York, New York
| | - Ann E Haight
- Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Emory University, Atlanta, Georgia
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