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Addison Disease

Updated : August 9, 2023





Background

An inherited primary adrenal shortage is Addison’s disease. Addison syndrome is a primary adrenal deficiency that is brought on by an autoimmune mechanism. It is an uncommon emergency situation that could be fatal. It is brought on by the bilateral destruction of the adrenal medulla, which results in a reduction in adrenocortical hormones such as androgens, cortisol, and aldosterone.

The sneaky progression of Addison’s disease typically begins with glucocorticoid deficit and progresses to mineralocorticoid deficiency. However, it can also manifest suddenly, frequently brought on by a concurrent illness. The rate and degree of adrenal activity involvement determine how an adrenal deficit manifest.

Immune mediated adrenalitis, also known as Addison disease, which is accompanied by increased amounts of 21-hydroxylase autoantibodies, is the most frequent cause of primal adrenal insufficiency.

Epidemiology

Addison’s illness is quite uncommon. The prevalence is 0.6 every 100,000 people annually. This illness affects somewhere between 4 and 11 persons out of every 100,000 people at any particular moment. The typical age of presentation in adults is between 30 and 50. Women are more likely to have it.

Other autoimmune disorders are possible causes for the autoimmune (greatest prevalent) form of Addison’s disease:

  • Graves’ disease
  • Dermatis herpetiformis
  • Type I diabetes
  • Hypopituitarism
  • Myasthenia gravis
  • Pernicious anemia
  • Vitiligo

Anatomy

Pathophysiology

The lack of negative feedback suppression causes the production of cortisol, aldosterone, and eventually ACTH (adrenocorticotropic) and MSH (melanocyte-stimulating hormone) hormones to diminish as a result of adrenal insufficiency in Addison disease.

Etiology

This results from the adrenal cortex’s failure to create enough adrenal cortex hormones.

There are two types of adrenal insufficiency:

primary and secondary.

Primary Adrenocortical Insufficiency

Primary adrenal insufficiency can be caused by any illness that causes the adrenocortical to be directly injured (Addison disease).

Autoimmune: The most frequent cause of Addison’s disease is the immune system’s destruction of the adrenal cortex. Autoimmunity polyglandular endocrinopathy or isolated cases of immunological damage can occur (type 1 & 2). Polyglandular autoimmunity syndromes are more prevalent in patients with immune-mediated adrenal illness.

Ectodermal dysplasia, candidiasis, and autoimmune polyendocrinopathies and are symptoms of type 1 immunological polyglandular disorder. Mucocutaneous candida, hypoparathyroidism, & Addison’s disorder make up the traditional triad.

Numerous relationships make up type 2 immune-mediated polyglandular disorder.

  • Diabetes type 1 (Carpenter disorder)
  • Thyroid autoimmunity (Schmidt disorder)

With celiac disorder, Addison condition has been documented.

Infections: This comprises HIV, CMV, sepsis, and tuberculosis. Although tuberculosis is becoming less common, HIV is now the main factor contributing to the adrenal deficit & adrenocortical necrosis. Syphilis disseminated fungal pathogens, and histoplasmosis is a few more infectious reasons. In South America, blastomycosis is a frequent cause.

Adrenal bleeding: Meningococcal meningitis, malignant processes, trauma, and DIC are all potential causes of bilateral adrenocortical haemorrhages. The Waterhouse-Friderichsen disease is a meningococcal adrenal shock. Children & patients suffering asplenia are more likely to experience this.

Infiltration: Metastases, amyloidosis, and hemochromatosis all involve adrenal invasion.

Sarcoidosis, genetic conditions, & lymphoma such as CAH (congenital adrenal hyperplasia) & adrenocortical leukodystrophy are additional reasons. Wolman syndrome is an uncommon inborn metabolic mistake that manifests as diarrhoea, stunting, hepatosplenomegaly, and adrenal gland calcification. A reason for adrenocortical insufficiency has been discovered as anti-phospholipid antibodies disease.

Drugs: Some medications can prevent the production of cortisol, which leads to adrenocortical insufficiency

  • The enzyme 11-hydroxylase, which changes deoxycortisol into cortisol, is specifically inhibited by etomidate. Etomidate has a dose-dependent impact.
  • Adrenal enzymes are inhibited by ketoconazole.

Secondary Adrenocortical Insufficiency

The most frequent cause of subsequent insufficiency is external steroid treatment, which suppresses ACTH production. The production of glucocorticoids is decreased as a result of a pituitary-dependent loss of ACTH release.

Aldosterone secretion, however, continues to be at a level that is essentially normal. Compared to primary adrenocortical insufficiency, it is more frequent. Symptoms typically appear after stopping the steroid.

  • Primary = Intrinsic adrenal cortex insufficiency caused by autoimmune disease (both aldosterone and cortisol deficiency)
  • Secondary = malfunction of the hypothalamus and pituitary gland as a result of prolonged glucocorticoid therapy (only cortisol deficit).

Genetics

Prognostic Factors

A lifetime replacement of mineralocorticoids & glucocorticoids is the mainstay of the management for Addison ’s disease. To prevent over- either under with glucocorticoids, a precise balance is necessary. Consequently, cautious observation is necessary. Osteoporosis, Obesity, and diabetes may be brought on by overusing glucocorticoids.

Hypertension may result from using mineralocorticoids excessively. Up to 50percent of patients with Addison ’s disease run the risk of getting another autoimmune disorder. Individuals with Addison ’s disease are more likely to do so. In undiagnosed people, thyroid hormone supplementation may cause an adrenal crisis.

Clinical History

Physical Examination

Age group

Associated comorbidity

Associated activity

Acuity of presentation

Differential Diagnoses

Laboratory Studies

Imaging Studies

Procedures

Histologic Findings

Staging

Treatment Paradigm

by Stage

by Modality

Chemotherapy

Radiation Therapy

Surgical Interventions

Hormone Therapy

Immunotherapy

Hyperthermia

Photodynamic Therapy

Stem Cell Transplant

Targeted Therapy

Palliative Care

Medication

 

fludrocortisone 

Indicated for adrenocortical insufficiency:

0.1mg orally/day
Maintenance dose:0.1mg orally weekly thrice to 0.2mg orally per day



 

fludrocortisone 

Indicated for adrenocortical insufficiency:

0.05mg-0.1mg orally/day



 

Media Gallary

References

https://www.ncbi.nlm.nih.gov/books/NBK441994/

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Addison Disease

Updated : August 9, 2023




An inherited primary adrenal shortage is Addison’s disease. Addison syndrome is a primary adrenal deficiency that is brought on by an autoimmune mechanism. It is an uncommon emergency situation that could be fatal. It is brought on by the bilateral destruction of the adrenal medulla, which results in a reduction in adrenocortical hormones such as androgens, cortisol, and aldosterone.

The sneaky progression of Addison’s disease typically begins with glucocorticoid deficit and progresses to mineralocorticoid deficiency. However, it can also manifest suddenly, frequently brought on by a concurrent illness. The rate and degree of adrenal activity involvement determine how an adrenal deficit manifest.

Immune mediated adrenalitis, also known as Addison disease, which is accompanied by increased amounts of 21-hydroxylase autoantibodies, is the most frequent cause of primal adrenal insufficiency.

Addison’s illness is quite uncommon. The prevalence is 0.6 every 100,000 people annually. This illness affects somewhere between 4 and 11 persons out of every 100,000 people at any particular moment. The typical age of presentation in adults is between 30 and 50. Women are more likely to have it.

Other autoimmune disorders are possible causes for the autoimmune (greatest prevalent) form of Addison’s disease:

  • Graves’ disease
  • Dermatis herpetiformis
  • Type I diabetes
  • Hypopituitarism
  • Myasthenia gravis
  • Pernicious anemia
  • Vitiligo

The lack of negative feedback suppression causes the production of cortisol, aldosterone, and eventually ACTH (adrenocorticotropic) and MSH (melanocyte-stimulating hormone) hormones to diminish as a result of adrenal insufficiency in Addison disease.

This results from the adrenal cortex’s failure to create enough adrenal cortex hormones.

There are two types of adrenal insufficiency:

primary and secondary.

Primary Adrenocortical Insufficiency

Primary adrenal insufficiency can be caused by any illness that causes the adrenocortical to be directly injured (Addison disease).

Autoimmune: The most frequent cause of Addison’s disease is the immune system’s destruction of the adrenal cortex. Autoimmunity polyglandular endocrinopathy or isolated cases of immunological damage can occur (type 1 & 2). Polyglandular autoimmunity syndromes are more prevalent in patients with immune-mediated adrenal illness.

Ectodermal dysplasia, candidiasis, and autoimmune polyendocrinopathies and are symptoms of type 1 immunological polyglandular disorder. Mucocutaneous candida, hypoparathyroidism, & Addison’s disorder make up the traditional triad.

Numerous relationships make up type 2 immune-mediated polyglandular disorder.

  • Diabetes type 1 (Carpenter disorder)
  • Thyroid autoimmunity (Schmidt disorder)

With celiac disorder, Addison condition has been documented.

Infections: This comprises HIV, CMV, sepsis, and tuberculosis. Although tuberculosis is becoming less common, HIV is now the main factor contributing to the adrenal deficit & adrenocortical necrosis. Syphilis disseminated fungal pathogens, and histoplasmosis is a few more infectious reasons. In South America, blastomycosis is a frequent cause.

Adrenal bleeding: Meningococcal meningitis, malignant processes, trauma, and DIC are all potential causes of bilateral adrenocortical haemorrhages. The Waterhouse-Friderichsen disease is a meningococcal adrenal shock. Children & patients suffering asplenia are more likely to experience this.

Infiltration: Metastases, amyloidosis, and hemochromatosis all involve adrenal invasion.

Sarcoidosis, genetic conditions, & lymphoma such as CAH (congenital adrenal hyperplasia) & adrenocortical leukodystrophy are additional reasons. Wolman syndrome is an uncommon inborn metabolic mistake that manifests as diarrhoea, stunting, hepatosplenomegaly, and adrenal gland calcification. A reason for adrenocortical insufficiency has been discovered as anti-phospholipid antibodies disease.

Drugs: Some medications can prevent the production of cortisol, which leads to adrenocortical insufficiency

  • The enzyme 11-hydroxylase, which changes deoxycortisol into cortisol, is specifically inhibited by etomidate. Etomidate has a dose-dependent impact.
  • Adrenal enzymes are inhibited by ketoconazole.

Secondary Adrenocortical Insufficiency

The most frequent cause of subsequent insufficiency is external steroid treatment, which suppresses ACTH production. The production of glucocorticoids is decreased as a result of a pituitary-dependent loss of ACTH release.

Aldosterone secretion, however, continues to be at a level that is essentially normal. Compared to primary adrenocortical insufficiency, it is more frequent. Symptoms typically appear after stopping the steroid.

  • Primary = Intrinsic adrenal cortex insufficiency caused by autoimmune disease (both aldosterone and cortisol deficiency)
  • Secondary = malfunction of the hypothalamus and pituitary gland as a result of prolonged glucocorticoid therapy (only cortisol deficit).

A lifetime replacement of mineralocorticoids & glucocorticoids is the mainstay of the management for Addison ’s disease. To prevent over- either under with glucocorticoids, a precise balance is necessary. Consequently, cautious observation is necessary. Osteoporosis, Obesity, and diabetes may be brought on by overusing glucocorticoids.

Hypertension may result from using mineralocorticoids excessively. Up to 50percent of patients with Addison ’s disease run the risk of getting another autoimmune disorder. Individuals with Addison ’s disease are more likely to do so. In undiagnosed people, thyroid hormone supplementation may cause an adrenal crisis.

fludrocortisone 

Indicated for adrenocortical insufficiency:

0.1mg orally/day
Maintenance dose:0.1mg orally weekly thrice to 0.2mg orally per day



fludrocortisone 

Indicated for adrenocortical insufficiency:

0.05mg-0.1mg orally/day



https://www.ncbi.nlm.nih.gov/books/NBK441994/

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