British HIV Association Guidelines 2024
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Questions and Answers

What is the name of the virus that causes AIDS?

Human Immunodeficiency Virus (HIV)

The British HIV Association (BHIVA) guidelines focus on the management of opportunistic infections in people living with HIV.

True (A)

Which of the following factors are considered risk factors for pulmonary opportunistic infections in people living with HIV? (Select all that apply)

  • Detectable viral load (correct)
  • Recent discharge from a hospital admission for more than 5 days for nonsocomial infections (correct)
  • Low CD4 T cell count (correct)
  • Recent hospital admission for more than 2 weeks
  • History of injecting drug use (correct)
  • Recent hospital discharge from a hospital admission for more than 5 days
  • Recent admission to hospital for more than 5 days
  • High CD4 T cell count
  • Non-adherence to ART (correct)

According to the BHIVA guidelines, what is the recommended first-line treatment of choice for PCP of any severity?

<p>Trimethoprim-sulfamethoxazole</p> Signup and view all the answers

What is the recommendation for the duration of treatment for PCP in people living with HIV?

<p>21 days</p> Signup and view all the answers

When is it recommended to start ART in individuals diagnosed with PCP?

<p>within 2 weeks of diagnosis</p> Signup and view all the answers

What is the primary prophylaxis regimen recommended to prevent a first episode of PCP in adults living with HIV and a CD4 cell count of less than 200 cells/mm³?

<p>Trimethoprim-sulfamethoxazole 960 mg once daily</p> Signup and view all the answers

What are the two alternative regimens recommended for primary prophylaxis to prevent a first episode of PCP if individuals cannot tolerate trimethoprim-sulfamethoxazole?

<p>Nebulized pentamidine or atovaquone</p> Signup and view all the answers

In individuals who have responded to ART with an increase in CD4 count to greater than 200 cells/mm³ for a period of 3 months, when can primary prophylaxis for PCP be stopped?

<p>Primary prophylaxis can be stopped</p> Signup and view all the answers

Secondary prophylaxis with trimethoprim-sulfamethoxazole should be stopped when an individual's CD4 count increases to greater than 100 cells/mm³ in whom plasma HIV levels remain undetectable for 3-6 months.

<p>True (A)</p> Signup and view all the answers

What is the guideline recommendation for starting ART in individuals who are not already on ART after an episode of bacterial pneumonia?

<p>Start within 2 weeks of initiating pneumonia therapy</p> Signup and view all the answers

People living with HIV should be offered the pneumococcal vaccine according to national guidelines.

<p>True (A)</p> Signup and view all the answers

People living with HIV who have a recent history of bacterial pneumonia should be offered a smoking cessation intervention.

<p>True (A)</p> Signup and view all the answers

What is the recommended primary therapy for invasive or chronic pulmonary aspergillosis in people living with HIV?

<p>Voriconazole</p> Signup and view all the answers

Routine prophylaxis for pulmonary aspergillosis is recommended in people living with HIV.

<p>False (B)</p> Signup and view all the answers

What is the recommended treatment for CMV pneumonitis?

<p>Ganciclovir</p> Signup and view all the answers

Valganciclovir can be used for both primary and secondary prophylaxis of CMV in individuals with HIV.

<p>True (A)</p> Signup and view all the answers

What is one notable way CMV has been impacted by the widespread use of ART?

<p>The incidence of CMV infections has declined</p> Signup and view all the answers

Pneumocystis jirovecii is a host-specific opportunistic pathogen that can be found in both humans and mammals.

<p>True (A)</p> Signup and view all the answers

Primary infection with P. jirovecii in early life is always symptomatic and associated with mild upper respiratory tract symptoms.

<p>False (B)</p> Signup and view all the answers

Before the widespread use of PCP prophylaxis and ART, PCP occurred in up to 80% of people living with HIV.

<p>True (A)</p> Signup and view all the answers

The clinical presentation of PCP is typically marked by a sudden onset of severe symptoms, characterized by rapid deterioration in respiratory function and high fever.

<p>False (B)</p> Signup and view all the answers

Individuals with PCP may experience paradoxical deterioration in clinical status during the first few days of treatment.

<p>True (A)</p> Signup and view all the answers

Which of the following are considered prognostic factors associated with a poor outcome in people living with HIV presenting with PCP? (Select all that apply)

<p>Low CD4 count (A), Poor oxygenation measures (C), Older age (D), Pregnancy (F), Low serum albumin levels (G), Marked chest radiographic abnormalities (H), High serum LDH levels (I), Elevated serum LDH levels (J), History of previous PCP episodes (K)</p> Signup and view all the answers

The use of adjunctive corticosteroids has been conclusively demonstrated to provide no benefit in reducing mortality and the need for assisted ventilation in PCP.

<p>False (B)</p> Signup and view all the answers

The clinical management of bacterial pneumonia in people living with HIV should follow the same guidelines as for those without HIV.

<p>True (A)</p> Signup and view all the answers

A single dose of pneumococcal polysaccharide vaccine (PPV) is recommended for individuals over the age of 65 years who are living with HIV.

<p>True (A)</p> Signup and view all the answers

Smoking cessation is not considered a crucial aspect of pneumonia prevention, and therefore is not recommended for people living with HIV.

<p>False (B)</p> Signup and view all the answers

The recommended primary therapy for invasive or chronic pulmonary aspergillosis in people living with HIV is the same as for those without HIV.

<p>True (A)</p> Signup and view all the answers

Extensive pulmonary cryptococcosis generally presents with a more insidious onset of symptoms than other forms of cryptococcal infection in people living with HIV.

<p>False (B)</p> Signup and view all the answers

Detection of Cryptococcus neoformans in induced sputum or BAL fluid is sufficient to confirm a diagnosis of pulmonary cryptococcosis in people living with HIV, without the need for further investigations, such as cultures or biopsies.

<p>False (B)</p> Signup and view all the answers

The treatment of pulmonary cryptococcosis in people living with HIV should always follow the same regimen as for CNS cryptococcal infection.

<p>False (B)</p> Signup and view all the answers

The treatment of PCP in people living with HIV should always be done empirically.

<p>False (B)</p> Signup and view all the answers

It is always necessary to initiate treatment with adjunctive corticosteroids for people with PCP and low oxygen saturation levels (< 92%) or a falling oxygen saturation level by greater than 3% on exercise.

<p>False (B)</p> Signup and view all the answers

Treatment for PCP in people living with HIV should only be considered if there is a lack of clinical improvement or worsening of oxygenation between days 4 and 8 after starting anti-Pneumocystis treatment.

<p>False (B)</p> Signup and view all the answers

Treatment failure in PCP can be attributed solely to lack of clinical improvement or worsening of chest radiographic appearances, excluding other factors such as drug toxicity or the development of other infections.

<p>False (B)</p> Signup and view all the answers

In patients with PCP who are not responding to, or are intolerant of, first-line therapy, Caspofungin has been shown as a viable alternative treatment option.

<p>True (A)</p> Signup and view all the answers

IRIS (Immune Reconstitution Inflammatory Syndrome) is a common occurrence following an episode of PCP in people living with HIV.

<p>False (B)</p> Signup and view all the answers

In patients who have a recent history of PCP, treatment should always be deferred until immune reconstitution occurs in response to commencing ART.

<p>False (B)</p> Signup and view all the answers

Flashcards

What is Pneumocystis pneumonia (PCP)?

A type of pneumonia caused by the Pneumocystis jirovecii fungus. It can be life-threatening, particularly in people with weakened immune systems like those with HIV.

What are some factors that increase the risk of Pneumocystis pneumonia (PCP)?

A lower CD4 count than 200 cells/mm³, detectable viral load, non-adherence to ART, history of injecting drug use, and recent hospitalization (greater than 5 days) are all risk factors that make PCP more likely.

What is a 'classic' pulmonary opportunistic infection?

A type of pulmonary opportunistic infection that develops in individuals with CD4 counts under 200 cells/mm³ due to a weakened immune system.

What is prophylaxis?

This refers to the use of medication to prevent infection before symptoms appear.

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What is 'empirical therapy'?

This involves starting treatment for a suspected infection before a definitive diagnosis is made based on lab tests.

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What is the definition of hypoxemia?

This refers to a level of oxygen saturation in the blood that is lower than 92% when breathing room air.

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What is intravenous (IV) administration?

This is the process of infusing a liquid, like a medication, directly into a vein.

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What is the first-line treatment for Pneumocystis pneumonia?

Trimethoprim-sulfamethoxazole (TMP-SMX) is considered the first-line treatment for most PCP cases due to its effectiveness and safety.

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Is penicillin a suitable medication for Pneumocystis pneumonia (PCP)?

Penicillin is not effective against fungal infections like PCP. It is most commonly used for bacterial infections.

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How long does treatment for Pneumocystis pneumonia (PCP) typically last?

Treatment for PCP typically involves a 21-day course of trimethoprim-sulfamethoxazole (TMP-SMX), unless there are special circumstances.

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What is a 'paradoxical reaction'?

This is a condition that can occur when the immune system overreacts to an infection, leading to more severe symptoms.

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What is 'Pneumocystis PCR'?

This is the process of detecting and measuring the Pneumocystis jirovecii DNA in a patient's respiratory samples.

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Why might a chest X-ray be recommended for someone with suspected PCP?

A chest X-ray is often used to evaluate the lungs for signs of PCP. Abnormal findings on a chest X-ray can suggest the need for further investigations.

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What is a bronchoscopy with bronchoalveolar lavage (BAL)?

This refers to removing fluid from the lungs using a bronchoscope, which is a long, flexible tube with a camera.

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What is a 'blood culture'?

This is a test that can detect a specific bacterial infection in the bloodstream.

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What is 'high-resolution computed tomography (CT)' of the lungs?

This type of X-ray involves taking detailed images of the lungs from different angles, providing a more comprehensive evaluation.

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What is 'Aspergillus' pneumonia?

This refers to a type of pneumonia caused by the Aspergillus fungus, which is found in the environment.

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What is 'galactomannan' testing?

This is a test that can detect various fungi in the body, including Aspergillus.

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What is 'cytomegalovirus (CMV) pneumonitis'?

This is an opportunistic infection caused by the cytomegalovirus (CMV) which can affect various organs, including the lungs.

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What is 'ganciclovir' used to treat?

Ganciclovir is an antiviral medication commonly used to treat CMV pneumonitis.

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What is 'valganciclovir' used for?

Valganciclovir is a medication that can be used to prevent CMV infections in those who are at high risk.

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What is 'Mycobacterium tuberculosis' infection?

This is a serious type of infection that can affect your lungs and other parts of your body, especially those with weakened immune systems.

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What is 'rifampicin'?

This is a medication that can be used to treat tuberculosis.

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What is a 'compatible clinical syndrome'?

This is a specific condition with symptoms and signs that are consistent with a particular disease. For example, if someone has a cough, fever, and shortness of breath, they may have a 'compatible clinical syndrome' with PCP.

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What is a 'tuberculosis (TB) culture'?

This is a laboratory test used to detect the presence of Mycobacterium tuberculosis, the bacteria that causes tuberculosis.

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What are 'CD4 T cells'?

This is a specific type of immune cell, responsible for protecting the body against infections. A low count of these cells indicates a weak immune system.

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What is 'viral load'?

This refers to the level of HIV in the blood. A detectable viral load indicates that HIV is actively replicating.

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What is 'antiretroviral therapy (ART)'?

This is a type of medication that is used to fight HIV infection. It prevents the virus from multiplying and damaging the immune system.

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What is 'non-adherence' to treatment?

This is a term used to describe a situation where a patient does not take their medications as prescribed. It can increase the risk of infections developing, including PCP.

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Which combination of medications is an alternative therapeutic option for PCP when a patient has a history of penicillin allergy?

The combination of trimethoprim and dapsone is considered effective for treating PCP, particularly in cases where a patient has a history of penicillin allergy.

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Study Notes

British HIV Association Guidelines on Pulmonary Opportunistic Infections (2024)

  • Introduction: The incidence of classic pulmonary opportunistic infections is decreasing due to improved HIV testing and treatment, but other lung conditions like COPD are increasing in people with HIV. HIV alters the lung environment, impacting the microbiome, and increasing the severity of common respiratory infections. Bacterial, fungal and viral infections are considered, focusing on those with high incidence or severity.

Methods

  • Literature Review: A systematic literature review using databases like Medline, Embase, and Cochrane Library was conducted to answer specific questions. The search strategy, including PICO (population, intervention, comparison, outcome) questions, is detailed in Appendix 1.

Summary of Recommendations

  • PCP (Pneumocystis jirovecii pneumonia): PCP should be considered in individuals with new onset or worsening respiratory symptoms and an abnormal chest X-ray. Diagnosis is by detection of Pneumocystis in induced sputum, bronchoalveolar lavage (BAL), or pulmonary fluid. If sputum induction is negative, bronchoscopy and BAL are recommended. Early PCP may be identified by high-resolution CT in people with normal chest X-rays. PCR detection of P. jirovecii in respiratory secretions does not automatically justify PCP treatment.

  • Bacterial Pneumonia: Pneumonia is a possible indicator for HIV infection. Diagnosis and management should follow national guidelines, emphasizing empirical antibiotic choices based on symptoms, risk factors, and potential resistance. Community-acquired bacterial pneumonia should be treated similarly to those without HIV.

  • Influenza: Testing for influenza and COVID-19 should be conducted in people with influenza-like symptoms. Treatment with neuraminidase inhibitors (NIs) should be initiated within 48 hours of symptom onset, particularly for people with severe immunocompromise. Individuals with persistent symptoms or shedding of the virus should have their treatment regimen adjusted.

  • Cryptococcal Disease: Pulmonary cryptococcosis should be diagnosed by culture or microscopic examination of fluids (e.g., bronchoalveolar lavage [BAL]). Serum cryptococcal antigen testing is advised and, if positive, lumbar puncture is recommended to assess for meningitis. Treatment strategies are usually similar to those for CNS infection, except in focal cases where fluconazole is a potential initial treatment.

  • Aspergillosis: The diagnosis requires a combination of clinical presentation, radiographic features and microbiological data, including special fungal stains, serum galactomannan, and BAL tests. Primary therapy is voriconazole.

  • CMV (Cytomegalovirus): Biopsy specimens demonstrating CMV infection, in conjunction with compatible clinical presentation, are suggestive of CMV pneumonia. Treatment is not routinely justified unless there are concomitant infections or insufficient response to other treatments. Ganciclovir is typically the first-line therapy.

Risk Factors

  • Low CD4 Counts: Significantly linked to opportunistic infections, as well as injecting drug use.
  • Viral Load: A marker for viral replication and often impacts infection risks.
  • Treatment Adherence: Non-adherence to ART and prophylaxis regimens increases the risk of contracting opportunistic infections.

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Description

This quiz explores the British HIV Association's guidelines on pulmonary opportunistic infections. It covers the impact of HIV on lung health, the incidence of various infections, and summarizes key recommendations for diagnosis and management. Emphasis is placed on the changing landscape of respiratory conditions among individuals living with HIV.

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