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Malt Worker's Lung

HP


Presentation

  • Acute cases with respiratory distress may require emergency medical attention, with the administration of oxygen to treat hypoxia, if present.[news-medical.net]
  • Patients present with fever, chills, and myalgias 4-6 hours after exposure. In contrast to inhalation fever, the chest X ray may show diffuse opacities. Bronchiolitis or diffuse alveolar damage may be present on lung biopsy specimens.[wikidoc.org]
  • In addition to the unusual etiologies or etiological circumstances presented in Table 29.5, we present below a brief overview of recently discovered or poorly known causes or circumstances of HP.[thoracickey.com]
  • […] about this topic in these articles: occupational health risks In occupational disease: Dusts …diseases known as farmer’s lung, malt worker’s lung, bird fancier’s lung, and so forth are caused by an allergic inflammatory reaction to the fungal spores present[britannica.com]
  • Typical case reports after different exposures are presented. A peak in frequency was observed in the age groups of 45-49 and 50-54yr (20.8% and 19.4% of cases, respectively) and within the first four years of employment (22.2% of cases).[jstage.jst.go.jp]
Fatigue
  • Jauhoastmasta sementti-ihottumaan.Työterveyslaitos, Helsinki 1997 6 EAA, symptoms flu-like illness cough high fever, chills dyspnea, chest tightness malaise, myalgia 4-8 hours after exposure chronic disease: dyspnea in strain, sputum production, fatigue[slideplayer.com]
  • This disease commonly presents with fever, chills, fatigue, weight loss, cough, headache, myalgia, or shortness of breath. Transmission is by inhalation of fungal spores.[medicbind.com]
  • Symptoms such as inflammation, shortness of breath, fatigue, weight loss, cough, fever, chills and body aches may appear after prolonged exposure and inhalation of the chemicals and particles.[empowher.com]
  • The condition can cause chest pain, breathing difficulties, fatigue, and other general signs and symptoms, such as fever, weight loss, and appetite loss Initially antibiotic therapy is administered to address C. psittaci bacterial infection (if present[dovemed.com]
  • With time, symptoms can progress to include headaches, fatigue, rashes, dizziness, shortness of breath, sinus infections, ear pain, muscle and joist pain, and fever.[anapsid.org]
Rales
  • […] flu-like illness cough high fever, chills dyspnea, chest tightness malaise, myalgia 4-8 hours after exposure chronic disease: dyspnea in strain, sputum production, fatigue, anorexia, weight loss 7 EAA, clinical findings Status dyspnea, cyanosis, crepitant rales[slideplayer.com]
  • Symptoms compatible with HP and basal crepitant rales b 3. BAL fluid lymphocytosis c 4. Findings compatible with HP on HRCT 5.[thoracickey.com]
  • The physician would hear fine inspiratory noises, called rales, by auscultation. In the subacute form the shortness of breath and a chronic cough would develop over days or several weeks.[nethealthbook.com]
Exertional Dyspnea
  • Usual phlegm Recurrent BFL: cough and mild exertional dyspnea, low-grade fever More recurrent systemic symptoms (chills, body aches) Insidious BFL: progressive dyspnea; clubbing Lung function tests Mild restrictive abnormalities that resolve Restrictive[thoracickey.com]
Throat Irritation
  • Even though it was in an open warehouse, I ended up getting what I call 'white lung' which was a persistent dry cough and general throat irritation. If the mill is in an enclosed space with no ventilation, a dust mask is highly recommended.[discussions.probrewer.com]
Vascular Disease
  • Differential Diagnosis By frequency of Interstitial Lung Diseases (Xaubet, 2004): Idiopathic pulmonary fibrosis (38.6%) Sarcoidosis (14.9%) Cryptogenic organizing pneumonia (10.4%) Interstitial lung disease associated with collagen vascular diseases ([wikidoc.org]
  • diseases Lymphangitis carcinomatosa Pulmonary fibrosis (DIP) Pneumoconioses 12 EAA, treatment Stopping of exposure Oral steroids Farmer's lung: after recovery back to work excluding/minimizing the exposure motorized respiratory ventilator, training![slideplayer.com]
Cardiomegaly
  • […] normal or increased) reduced gas transfer (TLCO/DLCO) during acute attacks Chronic: – B lood tests : positive serum precipitins – Chest x-ray : upper-zone fibrosis (as opposed to idiopathic pulmonary fibrosis which tends to be bi-basal), honeycomb lung, cardiomegaly[clumsylostmedicalstudent.wordpress.com]

Workup

Pulmonary Infiltrate
  • […] appearance to the face) is suggestive of sarcoidosis Staging is really all based on the CXR findings (BHL Bihilar lymphadenopathy) Stage 0 - CXR normal Stage 1 - BHL alone 80% resolve Stage 2 - BHL pulmonary infiltrate 50% resolve Stage 3 - Pulmonary[medexam.net]
Narrow QRS Complex
  • QRS complex treated with cardiac resynchronization therapy: a subanalysis of the randomized EchoCRT trial.[medicbind.com]
Aspergillus Clavatus
  • See also: lung malt worker's lung an immediate, immune complex (antibody-antigen) mediated hypersensitivity pneumonitis of humans caused by inhalation of Aspergillus clavatus in moldy barley.[medical-dictionary.thefreedictionary.com]
  • Inclusion Term For Icd 10 Code J67.4 Alveolitis due to Aspergillus clavatus Reverse Index Lookup for ICD 10 CM CODE J67.4 The following ICD-10-CM Index entries contain back-references to ICD-10-CM J67.4: Aspergillus clavatus J67.4 Aspergillus clavatus[medicbind.com]
  • clavatus J67.4 Alveolitis due to Aspergillus clavatus J67.4 Maltworker's lung J67.4 Pneumonitis (acute) (primary) - see also Pneumonia hypersensitivity J67.9 ICD-10-CM Diagnosis Code J67.9 Hypersensitivity pneumonitis due to unspecified organic dust[icd10data.com]
  • clavatus spores Links: pathology aetiology clinical features investigations diagnosis management prognosis[gpnotebook.co.uk]
  • Flashcards in extrinsic allergic alveolitis Deck (18): aspergillus clavatus and pénicillum casei maple bark strippers lung infiltration of small airways with neutrophils followed by T lymphocytes and macrophages leads to non-necrotising granuloma inflammation[brainscape.com]
Thermoactinomyces Sacchari
  • Thermoactinomyces sacchari Describe the pathogenesis of EAA.[quizlet.com]
  • sacchari Thermoactinomyces vulgaris References[wikidoc.org]
  • This may include exposure to Saccharopolyspora rectivirgula, Thermoactinomyces vulgaris, Thermoactinomyces viridis, or Thermoactinomyces sacchari. These species are usually found in decaying organic matter, such as compost, hay or sugar cane.[news-medical.net]
  • sacchari) -Cheese washer’s lung mouldy cheese ( Penicillium casei, Aspergilus clavatus) -Wine maker’s lung mould on grapes ( Botrytis) -Humidifier Lung water containing bacteria and Naegleria (amoeba) – So, a full occupational history is really important[clumsylostmedicalstudent.wordpress.com]
Mycobacterium Avium Complex
  • Exposure to aerosolized Mycobacterium avium complex (MAC): A hypersensitivity pneumonitis like syndrome has been described in patients exposed to aerosolized Mycobacterium avium complex (MAC).[wikidoc.org]
Fusarium
  • Saccharomyces cerevisiae Fusarium sp. Fusarium solani Pencillium sp. Thermophilic actinomycetes Aspergillus sp.[thoracickey.com]

Treatment

  • Treatment is oxygen, possibly steroids. Allons-y to battle 4.3 ![mrcpandme.blogspot.com]
  • Some individuals benefit from treatment with corticosteroid medication for acute forms of the disease, although this is less effective for chronic EEA.[news-medical.net]
  • Treatment of Malum Coxae… CONTINUE READING[semanticscholar.org]

Prognosis

  • Prognosis of Extrinsic allergic alveolitis (EAA) or hypersensitivity pneumonitis (HP) Prognosis is good if disease, and exposure to causative agent, is identified early. Hence further exposure can be avoided.[myvmc.com]
  • […] dust from feathers and faeces mushroom worker's lung is an allergic response to thermophilic actinomycetes spores in mould maltworker's lung - Aspergillus clavatus spores Links: pathology aetiology clinical features investigations diagnosis management prognosis[gpnotebook.co.uk]
  • -Compensation may be payable Complications: -progressive lung fibrosis -type 1 respiratory failure -pulmonary hypertension and cor pulmonale Prognosis: -the acute form generally resolves if further exposure is prevented -with chronic disease some patients[clumsylostmedicalstudent.wordpress.com]
  • […] after reorganization of the job description follow-up 13 EAA, prognosis Continuing exposure, relapsing disease leads to pulmonary fibrosis, permanent loss of pulmonary function and cor pulmonale.[slideplayer.com]
  • What is the Prognosis of Pulmonary MALT Lymphoma? (Outcomes/Resolutions) Pulmonary MALT Lymphoma is a slow-growing malignancy with a generally good prognosis.[dovemed.com]

Etiology

  • If the exposure continues, the exudation organises into fibrine and an irreversible pulmonary fibrosis follows. 3 Examples of EAA Etiology Farmer's lung mouldy hay Saw mill worker's lung mouldy wood dust Bird fancier's lung proteins in bird droppings[slideplayer.com]
  • In addition to the unusual etiologies or etiological circumstances presented in Table 29.5, we present below a brief overview of recently discovered or poorly known causes or circumstances of HP.[thoracickey.com]
  • Why is knowledge of occupational or environmental etiology so important? Patient management and prognosis are affected significantly by such knowledge.[accessmedicine.mhmedical.com]
  • A number of interstitial lung diseases of unknown etiology have characteristic histology, clinical features, or presentation and thus are considered unique diseases, including In up to 30% of patients who have interstitial lung diseases with no clear[merckmanuals.com]
  • (Etiology) Lymphocytes are a type of white blood cells that are responsible for providing immunity in the human body. B-cells and T-cells are the two different types of lymphocytes.[dovemed.com]

Epidemiology

  • […] alveolitis” describes the cause and nature of the disease, as follows: Extrinsic refers to an external cause Allergic refers to the hypersensitivity reaction that is characteristic of the disease Alveolitis refers to inflammation of the alveoli in the lungs Epidemiology[news-medical.net]
  • Epidemiology: -Uncommon 2% of occupational lung diseases -By far, the most common cause is Farmer’s lung, affecting up to 1 in 10 of the farming community in poor wet areas around the world. -50% cases affect farm workers Symptoms: 4-6 h post-exposure[clumsylostmedicalstudent.wordpress.com]
  • Up to Date: Epidemiology and causes of hypersensitivity pneumonitis (extrinsic allergic alveolitis) [online]. 2005. [Cited 2005 October 14th]. Available from URL:[myvmc.com]
  • The epidemiology of interstitial lung diseases. Am J Respir Crit Care Med 1994; 150: 967–972. PubMed Google Scholar 3. Roelandt M, Demedts M, Callebaut W, et al.[link.springer.com]
  • Simple CWP causes no symptoms and does not lead to respiratory disability In fact, epidemiologic studies show that coal miners who have breathing impairment, but have only simple CWP on their chest xray, are invariably heavy cigarette smokers; smoking[lakesidepress.com]
Sex distribution
Age distribution

Pathophysiology

  • Pathophysiology Extrinsic allergic alveolitis is caused by inhalation of antigens that cause a hypersensitivity reaction in the respiratory system.[news-medical.net]

Prevention

  • Prevention of the condition by avoiding or reducing exposure to the allergen is the best course of action.[news-medical.net]
  • ODTS is a milder syndrome, symptoms can be prevented using respirator when exposed. 20 Literature Pickering CAC, Newman Taylor AJ. Extrinsic allergic bronchioloalveolitis (hypersensitivity pneumonia).[slideplayer.com]
  • -Compensation may be payable Complications: -progressive lung fibrosis -type 1 respiratory failure -pulmonary hypertension and cor pulmonale Prognosis: -the acute form generally resolves if further exposure is prevented -with chronic disease some patients[clumsylostmedicalstudent.wordpress.com]
  • For example, the use of silage for animal fodder, drier storage of hay and grain may prevent or reverse early farmer’s lung. Individuals may be forced to change jobs or to give up bird rearing as a hobby.[myvmc.com]
  • To protect eyes, a full face respirator or goggles designed to prevent the entry of small particles are needed.[blog.pksafety.com]

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