Asplenia epidemiology and demographics: Difference between revisions

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{{Asplenia}}
{{Asplenia}}
{{CMG}} {{AE}}
{{CMG}} {{AE}} {{Kalpana Giri}}


==Overview==
==Overview==
The [[incidence]] of [[congenital asplenia]] is approximately [[1/10,000 to 1/40,000 live births]] per 100,000 [[individuals]] worldwide. [[Heterotaxy syndrome]] with [[asplenia]] and [[right atrial]] [[isomerism]] occurring approximately in 1 in [[10,000-40,000 births]]. The [[prevalence]] of [[asplenia]] is [[vary]] among different conditions. The prevalence of [[Isolated congenital asplenia]] is 0.51 [[per million births]], in [[alcoholic liver disease]], is about 37-100%, [[celiac disease]] 33-76% , [[Whipple’s disease]] 47% and in [[bone marrow transplantation]] 40% , and in other cases the [[frequency]] of [[hyposplenism]] is relatively low such as in [[systemic lupus erythematosu]]s around 7%. The [[mortality]] remains [[high]], at [[greater than 60%]], in  asplenic patients who are at risk for [[overwhelming infection]] and when they are [[complicated]] by [[invasive infection]]. [[Patients]] younger than 16 years old are considered to be at [[higher risk]] of OPSI due to their [[immature immune system]]. Asplenia occurs slightly more often in [[males]] than in [[females]].


==Epidemiology and Demographics==
==Epidemiology and Demographics==
===Incidence===
===Incidence===
*The incidence/prevalence of [disease name] is approximately [number range] per 100,000 individuals worldwide.
*The [[incidence]] of [[congenital asplenia]] is approximately [[1/10,000 to 1/40,000 live births]] per 100,000 [[individuals]] worldwide.<ref name="pmid20846672">{{cite journal| author=Mahlaoui N, Minard-Colin V, Picard C, Bolze A, Ku CL, Tournilhac O | display-authors=etal| title=Isolated congenital asplenia: a French nationwide retrospective survey of 20 cases. | journal=J Pediatr | year= 2011 | volume= 158 | issue= 1 | pages= 142-8, 148.e1 | pmid=20846672 | doi=10.1016/j.jpeds.2010.07.027 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=20846672  }} </ref>
*In [year], the incidence/prevalence of [disease name] was estimated to be [number range] cases per 100,000 individuals worldwide.
*The [[incidence]] of [[overwhelming post-splenectomy infection syndrome]] (OPSI) is 50% higher in [[splenectomised]] [[patients]] compared to [[healthy]] [[individuals]].<ref name="pmid11178626">{{cite journal| author=Hansen K, Singer DB| title=Asplenic-hyposplenic overwhelming sepsis: postsplenectomy sepsis revisited. | journal=Pediatr Dev Pathol | year= 2001 | volume= 4 | issue= 2 | pages= 105-21 | pmid=11178626 | doi=10.1007/s100240010145 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=11178626  }} </ref>
*[[Heterotaxy syndrome]] with [[asplenia]] and [[right atrial]] [[isomerism]] occurring approximately in 1 in [[10,000-40,000 births]], which is the most frequent one of these [[syndromes]].<ref name="pmid26557043">{{cite journal| author=Erdem SB, Genel F, Erdur B, Ozbek E, Gulez N, Mese T| title=Asplenia in children with congenital heart disease as a cause of poor outcome. | journal=Cent Eur J Immunol | year= 2015 | volume= 40 | issue= 2 | pages= 266-9 | pmid=26557043 | doi=10.5114/ceji.2015.52841 | pmc=4637402 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=26557043  }} </ref>


===Prevalence===
===Prevalence===
*The incidence/prevalence of [disease name] is approximately [number range] per 100,000 individuals worldwide.
*The [[prevalence]] of [[asplenia]] is [[vary]] among different conditions.<ref name="pmid14417436">{{cite journal| author=LIPSON RL, BAYRD ED, WATKINS CH| title=The postsplenectomy blood picture. | journal=Am J Clin Pathol | year= 1959 | volume= 32 | issue=  | pages= 526-32 | pmid=14417436 | doi=10.1093/ajcp/32.6.526 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=14417436  }} </ref>
*In [year], the incidence/prevalence of [disease name] was estimated to be [number range] cases per 100,000 individuals worldwide.
*The prevalence of [[Functional hyposplenism]] in [[Sickle cell disease]], almost 100% of cases, and [[overwhelming post-splenectomy infection syndrome]](OPSI) occur more [[frequently]].<ref name="pmid1933181">{{cite journal| author=Holdsworth RJ, Irving AD, Cuschieri A| title=Postsplenectomy sepsis and its mortality rate: actual versus perceived risks. | journal=Br J Surg | year= 1991 | volume= 78 | issue= 9 | pages= 1031-8 | pmid=1933181 | doi=10.1002/bjs.1800780904 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=1933181  }} </ref>
*The prevalence of [disease/malignancy] is estimated to be [number] cases annually.
*The prevalence in [[alcoholic liver disease]], is about 37-100%, [[celiac disease]] 33-76% , [[Whipple’s disease]] 47% and in [[bone marrow transplantation]] 40% , and in other cases the [[frequency]] of [[hyposplenism]] is relatively low such as in [[systemic lupus erythematosu]]s around 7%.
*The prevalence of [[Isolated congenital asplenia]] is 0.51 [[per million births]], indicated by French nationwide study.<ref name="pmid20846672">{{cite journal| author=Mahlaoui N, Minard-Colin V, Picard C, Bolze A, Ku CL, Tournilhac O | display-authors=etal| title=Isolated congenital asplenia: a French nationwide retrospective survey of 20 cases. | journal=J Pediatr | year= 2011 | volume= 158 | issue= 1 | pages= 142-8, 148.e1 | pmid=20846672 | doi=10.1016/j.jpeds.2010.07.027 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=20846672  }} </ref>


===Case-fatality rate/Mortality rate===
===Mortality===
*In [year], the incidence of [disease name] is approximately [number range] per 100,000 individuals with a case-fatality rate/mortality rate of [number range]%.
*Asplenic patients are at risk for [[overwhelming infection]] and when they are [[complicated]] by [[invasive infection]], the [[mortality]] remains [[high]], at [[greater than 60%]].<ref name="pmid22147274">{{cite journal| author=Uchida Y, Matsubara K, Wada T, Oishi K, Morio T, Takada H | display-authors=etal| title=Recurrent bacterial meningitis by three different pathogens in an isolated asplenic child. | journal=J Infect Chemother | year= 2012 | volume= 18 | issue= 4 | pages= 576-80 | pmid=22147274 | doi=10.1007/s10156-011-0341-z | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22147274  }} </ref>
*The case-fatality rate/mortality rate of [disease name] is approximately [number range].


===Age===
===Age===
*Patients of all age groups may develop [disease name].
*[[Patients]] younger than 16 years old are considered to be at [[higher risk]] of OPSI due to their [[immature immune system]].<ref name="pmid1933181">{{cite journal| author=Holdsworth RJ, Irving AD, Cuschieri A| title=Postsplenectomy sepsis and its mortality rate: actual versus perceived risks. | journal=Br J Surg | year= 1991 | volume= 78 | issue= 9 | pages= 1031-8 | pmid=1933181 | doi=10.1002/bjs.1800780904 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=1933181  }} </ref>
*The incidence of [disease name] increases with age; the median age at diagnosis is [#] years.
*[Disease name] commonly affects individuals younger than/older than [number of years] years of age.
*[Chronic disease name] is usually first diagnosed among [age group].
*[Acute disease name] commonly affects [age group].


===Race===
*There is no racial predilection to [disease name].
*[Disease name] usually affects individuals of the [race 1] race. [Race 2] individuals are less likely to develop [disease name].
===Gender===
===Gender===
*[Disease name] affects men and women equally.
*Asplenia occurs slightly more often in [[males]] than in [[females]].<ref name="pmid1191445">{{cite journal| author=Rose V, Izukawa T, Moës CA| title=Syndromes of asplenia and polysplenia. A review of cardiac and non-cardiac malformations in 60 cases withspecial reference to diagnosis and prognosis. | journal=Br Heart J | year= 1975 | volume= 37 | issue= 8 | pages= 840-52 | pmid=1191445 | doi=10.1136/hrt.37.8.840 | pmc=482884 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=1191445  }} </ref>
*[Gender 1] are more commonly affected by [disease name] than [gender 2]. The [gender 1] to [gender 2] ratio is approximately [number > 1] to 1.
 
===Region===
*The majority of [disease name] cases are reported in [geographical region].
 
*[Disease name] is a common/rare disease that tends to affect [patient population 1] and [patient population 2].
 
===Developed Countries===
 
===Developing Countries===


==References==
==References==
{{Reflist|2}}
{{Reflist|2}}


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Latest revision as of 11:47, 20 July 2021

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Kalpana Giri, MBBS[2]

Overview

The incidence of congenital asplenia is approximately 1/10,000 to 1/40,000 live births per 100,000 individuals worldwide. Heterotaxy syndrome with asplenia and right atrial isomerism occurring approximately in 1 in 10,000-40,000 births. The prevalence of asplenia is vary among different conditions. The prevalence of Isolated congenital asplenia is 0.51 per million births, in alcoholic liver disease, is about 37-100%, celiac disease 33-76% , Whipple’s disease 47% and in bone marrow transplantation 40% , and in other cases the frequency of hyposplenism is relatively low such as in systemic lupus erythematosus around 7%. The mortality remains high, at greater than 60%, in asplenic patients who are at risk for overwhelming infection and when they are complicated by invasive infection. Patients younger than 16 years old are considered to be at higher risk of OPSI due to their immature immune system. Asplenia occurs slightly more often in males than in females.

Epidemiology and Demographics

Incidence

Prevalence

Mortality

Age

Gender

References

  1. 1.0 1.1 Mahlaoui N, Minard-Colin V, Picard C, Bolze A, Ku CL, Tournilhac O; et al. (2011). "Isolated congenital asplenia: a French nationwide retrospective survey of 20 cases". J Pediatr. 158 (1): 142–8, 148.e1. doi:10.1016/j.jpeds.2010.07.027. PMID 20846672.
  2. Hansen K, Singer DB (2001). "Asplenic-hyposplenic overwhelming sepsis: postsplenectomy sepsis revisited". Pediatr Dev Pathol. 4 (2): 105–21. doi:10.1007/s100240010145. PMID 11178626.
  3. Erdem SB, Genel F, Erdur B, Ozbek E, Gulez N, Mese T (2015). "Asplenia in children with congenital heart disease as a cause of poor outcome". Cent Eur J Immunol. 40 (2): 266–9. doi:10.5114/ceji.2015.52841. PMC 4637402. PMID 26557043.
  4. LIPSON RL, BAYRD ED, WATKINS CH (1959). "The postsplenectomy blood picture". Am J Clin Pathol. 32: 526–32. doi:10.1093/ajcp/32.6.526. PMID 14417436.
  5. 5.0 5.1 Holdsworth RJ, Irving AD, Cuschieri A (1991). "Postsplenectomy sepsis and its mortality rate: actual versus perceived risks". Br J Surg. 78 (9): 1031–8. doi:10.1002/bjs.1800780904. PMID 1933181.
  6. Uchida Y, Matsubara K, Wada T, Oishi K, Morio T, Takada H; et al. (2012). "Recurrent bacterial meningitis by three different pathogens in an isolated asplenic child". J Infect Chemother. 18 (4): 576–80. doi:10.1007/s10156-011-0341-z. PMID 22147274.
  7. Rose V, Izukawa T, Moës CA (1975). "Syndromes of asplenia and polysplenia. A review of cardiac and non-cardiac malformations in 60 cases withspecial reference to diagnosis and prognosis". Br Heart J. 37 (8): 840–52. doi:10.1136/hrt.37.8.840. PMC 482884. PMID 1191445.

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