A Nationwide Italian Survey on Asplenia

NCT03571399 | Completed

• 1 other identifier: Asplenia
• Study Type: observational
• Target: 1,400
• Locations: 0 countries
• Sites: N/A

Brief Summary

Spleen is involved in several functions, such as the production of protective antibodies, the removal of unwanted particulate matter from the blood (eg bacteria) and also the storing of blood cells, especially white cells and platelets. Asplenia is a status due to spleen absence or dysfunction, which results from several rare diseases. Congenital Asplenia is a condition with absent or dysfunctional spleen, associated with other congenital abnormalities; functional asplenia is a status with present but dysfunctional spleen, related to many rare diseases, such as sickle cell disease, thalassemia, essential thrombocythaemia, lymphoproliferative diseases and splenectomy is the surgical removal of the spleen in order to treat a huge number of rare hematological and oncological diseases. So, asplenia is the final result of a numerous variety of rare disorders, and it leads to a high risk of infections and thrombotic events with significant mortality and morbidity. Antibiotic prophylaxis and specific vaccinations are recommended in this high risk population but adherence was shown to be very poor. A national register was demonstrated to improve population outcomes and reduce health care costs and facilitate research and public health purposes in this target population. In Europe very little experience exists in comprehensive national program for management of asplenia, and only in a restricted part of England and in Ireland surveys of post-splenectomized patients have been performed. In Italy no common policy of patient care has yet been developed, and management of asplenia is mainly case or locally directed.

Conditions

Splenectomy; Status

Outcome Measures

Primary Outcomes (1)

• Identification of the causes of mortality and morbidity

  The infectious and the thrombotic complication developed by asplenic patients during the observation period will be assessed

  10 years

Eligibility Criteria

• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)
• Sampling Method: Probability Sample

Study Population

All patients diagnosed with of any type of asplenia (congenital, surgical and functional) will be included in the study.

You may qualify if:

• Adult and pediatric patients affected by asplenia

You may not qualify if:

• Medical history including all relevant clinical data required by the protocol not available

Sponsors & Collaborators

• Società Italiana Talassemie ed Emoglobinopatie: lead
• University of Campania Luigi Vanvitelli: collaborator

Related Publications (13)

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  PMID: 14764527 BACKGROUND

• Lee A, Thomas P, Cupidore L, Serjeant B, Serjeant G. Improved survival in homozygous sickle cell disease: lessons from a cohort study. BMJ. 1995 Dec 16;311(7020):1600-2. doi: 10.1136/bmj.311.7020.1600.

  PMID: 8555802 BACKGROUND

• Gill FM, Sleeper LA, Weiner SJ, Brown AK, Bellevue R, Grover R, Pegelow CH, Vichinsky E. Clinical events in the first decade in a cohort of infants with sickle cell disease. Cooperative Study of Sickle Cell Disease. Blood. 1995 Jul 15;86(2):776-83.

  PMID: 7606007 BACKGROUND

• Kruetzmann S, Rosado MM, Weber H, Germing U, Tournilhac O, Peter HH, Berner R, Peters A, Boehm T, Plebani A, Quinti I, Carsetti R. Human immunoglobulin M memory B cells controlling Streptococcus pneumoniae infections are generated in the spleen. J Exp Med. 2003 Apr 7;197(7):939-45. doi: 10.1084/jem.20022020.

  PMID: 12682112 BACKGROUND

• Sullivan JL, Ochs HD, Schiffman G, Hammerschlag MR, Miser J, Vichinsky E, Wedgwood RJ. Immune response after splenectomy. Lancet. 1978 Jan 28;1(8057):178-81. doi: 10.1016/s0140-6736(78)90612-8.

  PMID: 74605 BACKGROUND

• Pearson HA, Spencer RP, Cornelius EA. Functional asplenia in sickle-cell anemia. N Engl J Med. 1969 Oct 23;281(17):923-6. doi: 10.1056/NEJM196910232811703. No abstract available.

  PMID: 5811425 BACKGROUND

• Hongeng S, Wilimas JA, Harris S, Day SW, Wang WC. Recurrent Streptococcus pneumoniae sepsis in children with sickle cell disease. J Pediatr. 1997 May;130(5):814-6. doi: 10.1016/s0022-3476(97)80026-1.

  PMID: 9152293 BACKGROUND

• Casale M, Perrotta S. Splenectomy for hereditary spherocytosis: complete, partial or not at all? Expert Rev Hematol. 2011 Dec;4(6):627-35. doi: 10.1586/ehm.11.51.

  PMID: 22077527 BACKGROUND

• Jais X, Ioos V, Jardim C, Sitbon O, Parent F, Hamid A, Fadel E, Dartevelle P, Simonneau G, Humbert M. Splenectomy and chronic thromboembolic pulmonary hypertension. Thorax. 2005 Dec;60(12):1031-4. doi: 10.1136/thx.2004.038083. Epub 2005 Aug 5.

  PMID: 16085731 BACKGROUND

• Waghorn DJ. Overwhelming infection in asplenic patients: current best practice preventive measures are not being followed. J Clin Pathol. 2001 Mar;54(3):214-8. doi: 10.1136/jcp.54.3.214.

  PMID: 11253134 BACKGROUND

• Hosea SW, Burch CG, Brown EJ, Berg RA, Frank MM. Impaired immune response of splenectomised patients to polyvalent pneumococcal vaccine. Lancet. 1981 Apr 11;1(8224):804-7. doi: 10.1016/s0140-6736(81)92681-7.

  PMID: 6111673 BACKGROUND

• Wright J, Thomas P, Serjeant GR. Septicemia caused by Salmonella infection: an overlooked complication of sickle cell disease. J Pediatr. 1997 Mar;130(3):394-9. doi: 10.1016/s0022-3476(97)70201-4.

  PMID: 9063414 BACKGROUND

• Taher AT, Musallam KM, Karimi M, El-Beshlawy A, Belhoul K, Daar S, Saned MS, El-Chafic AH, Fasulo MR, Cappellini MD. Overview on practices in thalassemia intermedia management aiming for lowering complication rates across a region of endemicity: the OPTIMAL CARE study. Blood. 2010 Mar 11;115(10):1886-92. doi: 10.1182/blood-2009-09-243154. Epub 2009 Dec 23.

  PMID: 20032507 BACKGROUND

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: June 7, 2018
• First Posted: June 27, 2018
• Study Start: March 1, 2016
• Primary Completion: March 1, 2016
• Study Completion: February 28, 2017
• Last Updated: June 28, 2018

Record last verified: 2018-05