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Agranulocytosis
Very Low Count of White Blood Cells Type Granulocytes

Agranulocytosis is a condition which is characterized by decrease in the neutrophil count below 100/mL of blood. These blood cells play a key role in the elimination of pathogens.

Presentation

Initial signs and symptoms of agranulocytosis include onset of sudden fever accompanied by chills with development of weakness in hands and legs. In addition to these, there is development of sores in the mouth, throat. In severe cases ulcers are also known to develop and which can lead to bleeding. Affected individuals can also experience rapid breathing, development of skin abscesses, rapid heart rate and a sudden drop in blood pressure [8].

Hematological

  • Easy Bruising

    A decrease in the number of platelets in the blood that may result in easy bruising and excessive bleeding from wounds or bleeding in mucous membranes and other tissues. [icd10data.com]

    Practice Essentials Immune thrombocytopenic purpura (ITP) is a clinical syndrome in which a decreased number of circulating platelets (thrombocytopenia) (see the image below) manifests as a bleeding tendency, easy bruising (purpura), or extravasation [emedicine.medscape.com]

    Transient myeloid leukemia is a pre-leukemic condition. [26] [27] [28] Signs and symptoms [ edit ] Common symptoms of chronic or acute leukemia [29] The most common symptoms in children are easy bruising, pale skin, fever, and an enlarged spleen or liver [en.wikipedia.org]

Entire Body System

  • Fever

    Signs and symptoms[edit] Agranulocytosis may be asymptomatic, or may clinically present with sudden fever, rigors and sore throat. Infection of any organ may be rapidly progressive (e.g., pneumonia, urinary tract infection). [en.wikipedia.org]

    […] infection Alternative Title: agranulocytic angina Agranulocytosis, also called agranulocytic angina, acute infection characterized by severe sore throat, fever, and fatigue and associated with an extreme reduction of white blood cells, or leukocytes [britannica.com]

    Prevailing low grade fever may progress into a high fever or hypothermia along with rapid breathing, confusion, and body swelling. Urine output may decrease as well. [medicaljoyworks.com]

    Abstract A granulocytosis in dengue hemorrhagic fever has not been mentioned, it mayprobably be included under the term of leucopenia. Here is the case of a 14-year Thai boy presenting with fever and diarrhea for 3 days. [ncbi.nlm.nih.gov]

    Clinical findings Fever, malaise, mucocutaneous ulcers (throat, GI tract, skin). agranulocytosis Granulocytopenia, granulopenia Hematology A marked ↓ in PMNs < 500/mm3 Clinical Fever, malaise, mucocutaneous ulcers–throat, GI tract, skin Etiology Acquired [medical-dictionary.thefreedictionary.com]

  • Chills

    Initially patients may be asymptomatic or may present with malaise, fever with or without chills, marked weakness and fatigue. All these symptoms are acute in onset. [medicaljoyworks.com]

    For other uses, see Chill (disambiguation). Chills Specialty Infectious disease Chills is a feeling of coldness occurring during a high fever, but sometimes is also a common symptom which occurs alone in specific people. [en.wikipedia.org]

    The first manifestations are usually produced by a severe infection and include high fever, chills, prostration, and ulcerations of mucous membranes such as in the mouth, rectum, or vagina. [medical-dictionary.thefreedictionary.com]

    Initial signs and symptoms of agranulocytosis include onset of sudden fever accompanied by chills with development of weakness in hands and legs. In addition to these, there is development of sores in the mouth, throat. [symptoma.com]

  • Rigor

    Signs and symptoms[edit] Agranulocytosis may be asymptomatic, or may clinically present with sudden fever, rigors and sore throat. Infection of any organ may be rapidly progressive (e.g., pneumonia, urinary tract infection). [en.wikipedia.org]

    To decipher the genetic architecture of CIA, it is necessary to apply more rigorous standards of phenotyping and study much larger sample sizes. [ncbi.nlm.nih.gov]

    Staphylococcus aureus was identified in cultures and he was treated with oxacillin and rifampin, however, on the 22nd day of treatment, he developed fever with rigors and tachycardia. [pulmonologyadvisor.com]

Respiratoric

  • Sore Throat

    […] infection Alternative Title: agranulocytic angina Agranulocytosis, also called agranulocytic angina, acute infection characterized by severe sore throat, fever, and fatigue and associated with an extreme reduction of white blood cells, or leukocytes [britannica.com]

    Signs and symptoms[edit] Agranulocytosis may be asymptomatic, or may clinically present with sudden fever, rigors and sore throat. Infection of any organ may be rapidly progressive (e.g., pneumonia, urinary tract infection). [en.wikipedia.org]

    In September 2002 she presented with a 5-day history of cough, fever, shortness of breath, sore throat, dysphagia and stridor.She was in fast atrial fibrillation, tachypnoeic, pyrexial and distressed. [endocrine-abstracts.org]

    Abstract A 20-year-old man came to our hospital with complaints of a sore throat and high fever. He had been treated for influenza for one week at another clinic. He had received six antibiotics, four antipyrines, and other drugs. [jstage.jst.go.jp]

Jaw & Teeth

  • Bleeding Gums

    The early symptoms of agranulocytosis may include: sudden fever chills sore throat weakness in your limbs sore mouth and gums mouth ulcers bleeding gums Other signs and symptoms of agranulocytosis can include: fast heart rate rapid breathing low blood [healthline.com]

    SIGNS & SYMPTOMS The early symptoms of agranulocytosis may include: • sudden fever • chills • sore throat • weakness in your limbs • HIGH FEVER • mouth ulcers • bleeding gums Other signs and symptoms of agranulocytosis can include: • fast heart rate • [slideshare.net]

  • Sore Mouth

    The early symptoms of agranulocytosis may include: sudden fever chills sore throat weakness in your limbs sore mouth and gums mouth ulcers bleeding gums Other signs and symptoms of agranulocytosis can include: fast heart rate rapid breathing low blood [healthline.com]

Skin

  • Blister

    Medical College, Perinthalmanna - 679 338, Kerala India Source of Support: None, Conflict of Interest: None DOI: 10.4103/2231-0738.158377 Abstract Dapsone is used for the treatment of leprosy and a variety of blistering skin diseases. [ijnpnd.com]

Face, Head & Neck

  • Epistaxis

    Other side effects : The British National Formulary (50th Edition, September 2005) includes other side effects associated to the administration of recombinant human granulocyte colony stimulating factor; transient hypotension, epistaxis, urinary abnormalities [pheniciagroup.com]

Neurologic

  • Dizziness

    Common side effects include drowsiness, dry mouth, low blood pressure, trouble seeing, and dizziness. The potentially permanent movement disorder tardive dyskinesia occurs in about 5% of people. Its mechanism of action is not entirely clear. [dbpedia.org]

    Three days prior to admission, the patient started to feel cold and had a fever, although the temperature was not taken, and the patient experienced a sore throat, dizziness and hypodynamia with unknown causes. [spandidos-publications.com]

    […] clozapine prescriptions compared to other antipsychotics did not reach 3.5% during the 2008–2009 period. 25 In an Italian sample, the percentage observed was 1.5%. 26 The prescription of clozapine seems to be limited by its adverse effects like drooling, dizziness [elsevier.es]

Workup

A routine blood test to determine complete blood count is performed at the preliminary level. Complete blood count would reveal neutrophil count below 500 or can even reach 0 cells/mm3. Urine samples would also be checked for signs of infections and count of white blood cells. If bone marrow diseases are the underlying cause, then a sample from bone marrow will be analyzed. In addition to these, various tests would be employed for determining autoimmune diseases. If the agranulocytosis is inherited, then genetic testing would also follow [9].

Long bone radiographs are suggested if congenital agranulocytosis is suspected. If the patient appears febrile, then chest radiographs would also be required when signs of pneumonia are evident. Along with these, ultrasonography and CT scan would be done to evaluate splenomegaly [10].

Serum

  • Neutrophil Count Decreased

    Following discontinuation of Neutromax therapy, circulating neutrophil count decreases by 50% after 1 to 2 days, and returns to baseline levels within 1 to 7 days. [pheniciagroup.com]

Treatment

Treatment of the underlying disease conditions would be the primary requirement. Following this, the symptoms of agranulocytosis would be managed with medications and other therapies. If the patient is suffering from drug-induced agranulocytosis, then the drug which is cause of the problem will be withdrawn and a substitute drug would then be suggested. Antibiotics or antifungal medications would be given for correcting infections.

Colony stimulating factor therapy is suggested for those individuals who have developed agranulocytosis due to chemotherapy treatment in the past. Granulocyte transfusion is the treatment of choice in cases when the individual has suffered gram negative sepsis and no considerable improvement has been noticed within 24 to 48 hours of initiation of other treatment methods [11].

Prognosis

Prognosis largely depends on the etiology and the severity of the disease. Mortality is high in patients who suffer from severe agranulocytosis. Death occurs due to uncontrolled sepsis, which is a secondary accompaniment of the condition. With prompt initiation of treatment, prognosis is good with a significant reduction in mortality rate. When agranulocytosis occurs as a secondary complication to viral infections, then such patients have a good prognosis [7].

Etiology

Congenital agranulocytosis is a result of genetic abnormalities present at birth. In such cases, a family history of the disease is evident and therefore, children are likely to develop genetic anomalies which in turn favor decreased neutrophils content in blood.

The acquired form occurs due to the following factors [2]:

  • Cancer treatment such as radiation and chemotherapy
  • Nutritional deficiencies
  • Cancer affecting the bone marrow
  • Various drugs such as clozapine [3]
  • Infections
  • Autoimmune diseases like systemic lupus erythematosus
  • Exposure to chemicals such as DDT

A recent outbreak of agranulocytosis was reported amongst cocaine users in the period of 2008 – 2009 in the US and Canada by the Center for Disease Control and Prevention [4]. Such a type of trend suggests a strong link between use of cocaine and development of agranulocytosis.

Epidemiology

The exact incidence of agranulocytosis is unknown. From the available data, it can be estimated that the condition occurs in 1 – 3.4 cases per million every year. For the drug induced variety, 1 case is reported to occur per million individuals each year.

Women are more prone to develop the condition compared to males; the reason being that females consume more medications. Agranulocytosis has predilection for the Black race and is a common phenomenon amongst those population [5].

Pathophysiology

Under normal conditions there are approximately 1500 granulocytes/ml of blood. Granulocytes are originally comprised of 3 types of cells; namely neutrophils, lymphocytes and monocytes. Amongst these, neutrophils make up for the larger share and play a major role in preventing the body against infections and helps in building immunity.

The mature forms of neutrophils are made by precursors in the bone marrow. Once the neutrophils mature and leave the bone marrow, they enter the blood without re-entering the bone marrow. Factors or conditions that interfere with production of mature neutrophils in the bone marrow give rise to the condition of agranulocytosis [6].

Prevention

Agranulocytosis cannot always be prevented. However, if drugs are the cause, then withdrawing the drugs can also help prevent its onset. Use of prophylactic antibiotics can go a long way in preventing the condition [12].

Summary

Agranulocytosis can either be acquired or may be present from birth – congenital. In the acquired type, the bone marrow is unable to produce stem cells that eventually mature into granulocytes. Or it may so happen that the granulocytes are destroyed faster than normal. In the congenital agranulocytosis, there is some kind of genetic defect that is present from birth. Affected individuals are highly susceptible to infections due to severely suppressed immune system [1].

Patient Information

Definition: Agranulocytosis is a condition, characterized by very low levels of neutrophil count in blood. Such individuals are frequently prone to contract infections due to compromised immunity.

Cause: Underlying disease conditions such as bone marrow diseases, autoimmune disorders and cancer, pave way for development of agranulocytosis. Other factors that causes the neutrophils count to fall too low include genetic defects, poor nutrition, drugs and therapies employed for cancer treatment.

Symptoms: Symptoms include fever, chills, infections and sore throat. Affected individuals can also develop mouth ulcers which in severe cases can even bleed. Infections of organ can develop and progress at a rapid rate.

Diagnosis: A preliminary complete blood profile to determine the neutrophil count is carried out. In addition, urine analysis would also be done to determine infections. Imaging studies such as radiographs and CT scan are indicated in cases, when there is infection of lungs and congenital agranulocytosis is suspected. Long bone radiographs are required in cases when the patient appears febrile.

Treatment: Treatment is geared towards correcting the underlying condition that is causing the problem. In addition, antibiotics or antiviral agents are administered if infections have set in. If drugs are the offending agents, then these are withdrawn and replaced with a substitute.

References

  1. Young NS. Agranulocytosis. JAMA 1994; 271:935.
  2. Kaufman DW, Kelly JP, Jurgelon JM, et al. Drugs in the aetiology of agranulocytosis and aplastic anaemia. Eur J Haematol Suppl 1996; 60:23.
  3. Alvir JM, Lieberman JA, Safferman AZ, et al. Clozapine-induced agranulocytosis. Incidence and risk factors in the United States. N Engl J Med 1993; 329:162.
  4. Zhu NY, Legatt DF, Turner AR. Agranulocytosis after consumption of cocaine adulterated with levamisole. Ann Intern Med 2009; 150:287.
  5. Lee GR, Foerster J, Lukens J, et al, eds. Wintrobe's Clinical Hematology. Vol 2. 10th ed. Philadelphia, Pa: Lippincott Williams & Wilkins; 1999:1862-82.
  6. Watts RG. Neutropenia. In: Lee GR, Foerster J, Lukens J, et al, eds. Wintrobe's Clinical Hematology. 10thed. Baltimore, Md: Lippincott, Williams & Wilkins; 1999:1862-1888.
  7. Pathak R, Giri S, Aryal MR, Karmacharya P, Bhatt VR, Martin MG. Mortality, length of stay, and health care costs of febrile neutropenia-related hospitalizations among patients with breast cancer in the United States. Support Care Cancer. Jan 4 2015
  8. Gerson SL, Meltzer H. Mechanisms of clozapine-induced agranulocytosis. Drug Saf 1992; 7 Suppl 1:17.
  9. Xia J, Bolyard AA, Rodger E, Stein S, Aprikyan AA, Dale DC, et al. Prevalence of mutations in ELANE, GFI1, HAX1, SBDS, WAS and G6PC3 in patients with severe congenital neutropenia. Br J Haematol. Nov 2009;147(4):535-42
  10. Donadieu J, Fenneteau O, Beaupain B, et al. Congenital neutropenia: diagnosis, molecular bases and patient management. Orphanet J Rare Dis 2011; 6:26.
  11. Massey E, Paulus U, Doree C, Stanworth S. Granulocyte transfusions for preventing infections in patients with neutropenia or neutrophil dysfunction. Cochrane Database Syst Rev. Jan 21 2009;CD005341.
  12. Cullen M, Baijal S. Prevention of febrile neutropenia: use of prophylactic antibiotics. Br J Cancer. Sep 2009;101 Suppl 1:S11-4.
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