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__NOTOC__


{{CMG}}; {{AE}} {{Vbe}}


==Differential diagnosis==
_NOTOC _
{{CMG}};{{AE}}{{Vbe}}


*Signs and symptoms:
==Causes==
In patients with SIADH there is too much water in the blood,this leads to low sodium in the body.
[[Hypogammaglobulinemia]] is caused by:


Hyponatremia is the most common manifestation. The symptoms are based on level of sodium.(hyponatremia: sodium level below 135meq/l)
Immunodeficiency secondary to:
*[[Uremia]]
*Protein losing enteropathy
*[[Nephrotic syndrome]]
*Malnutrition
*Cirrhosis
*Hemodialysis
* Intestinal lymphangiectasia


When symptoms do occur, they may include any of the following:
* Protein-losing gastroenteropathy
*[[Nephrotic syndrome]]
*[[Thymoma]] <ref name="pmid29881497">{{cite journal |vauthors=Aouadi S, Ghrairi N, Braham E, Kaabi M, Maâlej S, Elgharbi LD |title=[Acquired hypogammaglobulinemia associated with thymoma: Good syndrome] |language=French |journal=Pan Afr Med J |volume=28 |issue= |pages=253 |date=2017 |pmid=29881497 |pmc=5989270 |doi=10.11604/pamj.2017.28.253.11352 |url=}}</ref>
* Medications :
** Gold
**D-Penicillamine
**Sulfasalazin
**Anticonvulsants
**Glucocorticoids
**Methotrexate
**Calcineurin inhibitors
** Rituximab<ref name="pmid29755528">{{cite journal |vauthors=Shoukat BA, Ali O, Kumar D, Bilal Gilani M, Zahid A, Aslam Joiya S, Anwar Malik M |title=Hypogammaglobulinemia Observed One Year after Rituximab Treatment for Idiopathic Thrombocytopenic Purpura |journal=Case Rep Med |volume=2018 |issue= |pages=2096186 |date=2018 |pmid=29755528 |pmc=5884289 |doi=10.1155/2018/2096186 |url=}}</ref><ref name="pmid29752554">{{cite journal |vauthors=Farhat L, Dara J, Duberstein S, De A |title=Secondary Hypogammaglobulinemia After Rituximab for Neuromyelitis Optica: A Case Report |journal=Drug Saf Case Rep |volume=5 |issue=1 |pages=22 |date=May 2018 |pmid=29752554 |pmc=5948191 |doi=10.1007/s40800-018-0087-y |url=}}</ref><ref name="pmid29627491">{{cite journal |vauthors=Thorlacius H, Jerkeman A, Marginean FE, Toth E |title=Colorectal malakoplakia in a patient with hypogammaglobulinemia |journal=Gastrointest. Endosc. |volume= |issue= |pages= |date=April 2018 |pmid=29627491 |doi=10.1016/j.gie.2018.04.001 |url=}}</ref>


* headache
* Environmental hazards:
** Ionizing radiation
**Toxins


*altered mental status
*Infections
 
** Viral(Herpes, Measles)
*frequent falls
**Bacterial(Mycobacterial)
 
**Parasitic(Malaria, helminthic infections)
*neurological manifestations such as lethargy, confusion...
 
in severe cases,seizures and coma may result.
 
 
Diagnostic criteria of SIADH:
 
* Na<135mmol/litre
*decreased effective serum osmolality<275mosm/kg
*urine osmolality>100mosm/kg
*presence of underlying disorders;CNS,pulmonary,malignancies,medications
*normal adrenal and thyroid function
*urine Na concentration>40mmol/l,unless taking diuretics,(or) on a severe salt restriction.
*absence of edematous diseases(such as heart failure,nephrotic syndrome, liver cirrhosis)
 
Agents and means used in the treatment of SIADH.
 
Indirect modalities:
*treatment of underlying pathology
*salt restriction
*Hyper-tonic saline
*Loop diuretics
*Urea
*Demecloclycline, lithium
*Hemodialysis, CVVH(continuous veno-venous hemofiltration), SLED(slow, low-efficiency daily dialysis).
 
Direct modalities:
 
"Vaptan drugs": block  action of vasopressin at it's receptors,(V1A,V1B,V2)
 
Prognosis:Patients with SIADH have different characteristics and a different prognosis according to SIADH etiology. Serum sodium concentration at short-term follow-up is predictive of long-term survival. These findings might have diagnostic and treatment-related implications.
<references />

Latest revision as of 14:23, 3 August 2018


_NOTOC _ Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Vindhya BellamKonda, M.B.B.S [2]

Causes

Hypogammaglobulinemia is caused by:

Immunodeficiency secondary to:

  • Protein-losing gastroenteropathy
  • Nephrotic syndrome
  • Thymoma [1]
  • Medications :
    • Gold
    • D-Penicillamine
    • Sulfasalazin
    • Anticonvulsants
    • Glucocorticoids
    • Methotrexate
    • Calcineurin inhibitors
    • Rituximab[2][3][4]
  • Environmental hazards:
    • Ionizing radiation
    • Toxins
  • Infections
    • Viral(Herpes, Measles)
    • Bacterial(Mycobacterial)
    • Parasitic(Malaria, helminthic infections)
  1. ↑ Aouadi S, Ghrairi N, Braham E, Kaabi M, Maâlej S, Elgharbi LD (2017). "[Acquired hypogammaglobulinemia associated with thymoma: Good syndrome]". Pan Afr Med J (in French). 28: 253. doi:10.11604/pamj.2017.28.253.11352. PMC 5989270. PMID 29881497.
  2. ↑ Shoukat BA, Ali O, Kumar D, Bilal Gilani M, Zahid A, Aslam Joiya S, Anwar Malik M (2018). "Hypogammaglobulinemia Observed One Year after Rituximab Treatment for Idiopathic Thrombocytopenic Purpura". Case Rep Med. 2018: 2096186. doi:10.1155/2018/2096186. PMC 5884289. PMID 29755528.
  3. ↑ Farhat L, Dara J, Duberstein S, De A (May 2018). "Secondary Hypogammaglobulinemia After Rituximab for Neuromyelitis Optica: A Case Report". Drug Saf Case Rep. 5 (1): 22. doi:10.1007/s40800-018-0087-y. PMC 5948191. PMID 29752554.
  4. ↑ Thorlacius H, Jerkeman A, Marginean FE, Toth E (April 2018). "Colorectal malakoplakia in a patient with hypogammaglobulinemia". Gastrointest. Endosc. doi:10.1016/j.gie.2018.04.001. PMID 29627491.
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