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McDonald EG, Afshar A, Assiri B, Boyles T, Hsu JM, Khuong N, Prosty C, So M, Sohani ZN, Butler-Laporte G, Lee TC. Pneumocystis jirovecii pneumonia in people living with HIV: a review. Clin Microbiol Rev 2024; 37:e0010122. [PMID: 38235979 PMCID: PMC10938896 DOI: 10.1128/cmr.00101-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024] Open
Abstract
Pneumocystis jirovecii is a ubiquitous opportunistic fungus that can cause life-threatening pneumonia. People with HIV (PWH) who have low CD4 counts are one of the populations at the greatest risk of Pneumocystis jirovecii pneumonia (PCP). While guidelines have approached the diagnosis, prophylaxis, and management of PCP, the numerous studies of PCP in PWH are dominated by the 1980s and 1990s. As such, most studies have included younger male populations, despite PCP affecting both sexes and a broad age range. Many studies have been small and observational in nature, with an overall lack of randomized controlled trials. In many jurisdictions, and especially in low- and middle-income countries, the diagnosis can be challenging due to lack of access to advanced and/or invasive diagnostics. Worldwide, most patients will be treated with 21 days of high-dose trimethoprim sulfamethoxazole, although both the dose and the duration are primarily based on historical practice. Whether treatment with a lower dose is as effective and less toxic is gaining interest based on observational studies. Similarly, a 21-day tapering regimen of prednisone is used for patients with more severe disease, yet other doses, other steroids, or shorter durations of treatment with corticosteroids have not been evaluated. Now with the widespread availability of antiretroviral therapy, improved and less invasive PCP diagnostic techniques, and interest in novel treatment strategies, this review consolidates the scientific body of literature on the diagnosis and management of PCP in PWH, as well as identifies areas in need of more study and thoughtfully designed clinical trials.
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Affiliation(s)
- Emily G. McDonald
- Division of General Internal Medicine, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
- Division of Experimental Medicine, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
- Canadian Medication Appropriateness and Deprescribing Network, Montreal, Quebec, Canada
| | - Avideh Afshar
- Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada
| | - Bander Assiri
- Division of Experimental Medicine, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
| | - Tom Boyles
- Right to Care, NPC, Centurion, South Africa
- London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Jimmy M. Hsu
- Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada
| | - Ninh Khuong
- Canadian Medication Appropriateness and Deprescribing Network, Montreal, Quebec, Canada
| | - Connor Prosty
- Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada
| | - Miranda So
- Sinai Health System-University Health Network Antimicrobial Stewardship Program, University of Toronto, Toronto, Canada
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Canada
| | - Zahra N. Sohani
- Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada
| | - Guillaume Butler-Laporte
- Division of Infectious Diseases, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
| | - Todd C. Lee
- Division of Experimental Medicine, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
- Division of Infectious Diseases, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
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Chen KH, Liu WD, Sun HY, Lin KY, Hsieh SM, Sheng WH, Chuang YC, Huang YS, Cheng A, Hung CC. Immune Reconstitution Inflammatory Syndrome in People Living with HIV Who Presented with Interstitial Pneumonitis: an Emerging Challenge in the Era of Rapid Initiation of Antiretroviral Therapy. Microbiol Spectr 2023; 11:e0498522. [PMID: 36877061 PMCID: PMC10100876 DOI: 10.1128/spectrum.04985-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 02/16/2023] [Indexed: 03/07/2023] Open
Abstract
Studies on immune reconstitution inflammatory syndrome (IRIS) in people living with HIV (PLWH) and presenting with interstitial pneumonitis (IP) are limited in the era of rapid antiretroviral therapy (ART) initiation, particularly with integrase strand-transfer inhibitor (INSTI)-containing regimens. Adult PLWH presenting with IP in whom ART was initiated within 30 days of IP diagnosis between 2015 and 2021 were retrospectively identified. The primary outcome was the occurrence of IRIS within 30 days after admission. Of 88 eligible PLWH with IP (median age, 36 years; CD4 count, 39 cells/mm3), Pneumocystis jirovecii and cytomegalovirus (CMV) DNA were detected via polymerase-chain-reaction assay in 69.3% and 91.7% of respiratory specimens, respectively. 22 PLWH (25.0%) had manifestations that met French's IRIS criteria for paradoxical IRIS. There were no statistically significant differences in terms of the all-cause mortality (0.0% versus 6.1%, P = 0.24), the occurrence of respiratory failure (22.7% versus 19.7%, P = 0.76), and pneumothorax (9.1% versus 7.6%, P = 0.82) between PLWH with and those without paradoxical IRIS. In a multivariable analysis, the factors associated with IRIS were the decline of the 1 month plasma HIV RNA load (PVL) with ART (adjusted hazard ratio [aHR] per 1 log decrease, 3.45; 95% CI, 1.52 to 7.81), a baseline CD4-to-CD8 ratio of <0.1 (aHR, 3.47; 95% CI, 1.16 to 10.44), and the rapid initiation of ART (aHR, 7.95; 95% CI, 1.04 to 60.90). In conclusion, we found a high rate of paradoxical IRIS among PLWH with IP in the era of rapid ART initiation with INSTI-containing ART and this was associated with immune depletion at baseline, a rapid decline of PVL, and an interval of <7 days between the diagnosis of IP and the initiation of ART. IMPORTANCE Our study of PLWH who presented with IP mainly due to Pneumocystis jirovecii demonstrates that a high rate of paradoxical IRIS and a rapid decline of PVL with the initiation of ART, a CD4-to-CD8 ratio of <0.1 at baseline, and a short interval (<7 days) between the diagnosis of IP and the initiation of ART were associated with paradoxical IP-IRIS in PLWH. Paradoxical IP-IRIS was not associated with mortality or respiratory failure with heightened awareness among the HIV-treating physicians, rigorous investigations to exclude the possibilities of concomitant infections, or the malignancies and adverse effects of medications, including the cautious use of corticosteroids.
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Affiliation(s)
- Kai-Hsiang Chen
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Wang-Da Liu
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Medicine, National Taiwan University Cancer Center, Taipei, Taiwan
| | - Hsin-Yun Sun
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Kuan-Yin Lin
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
- Center of Infection Control, National Taiwan University Hospital, Taipei, Taiwan
| | - Szu-Min Hsieh
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Wang-Huei Sheng
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Medical Education, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
- School of Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yu-Chung Chuang
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yu-Shan Huang
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Aristine Cheng
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chien-Ching Hung
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Internal Medicine, National Taiwan University Hospital Yunlin Branch, Yunlin, Taiwan
- Department of Tropical Medicine and Parasitology, National Taiwan University College of Medicine, Taipei, Taiwan
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3
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Lugat A, Lasolle H, François M, Benhenda N, Bricaire L, Cornu E, Cristante J, Gitton A, Hadoux J, Kerlan V, Le Bras M, Mezzaroba V, Puerto M, Storey C, Ouzounian S, Donadille B, Raverot G, Drui D, Haissaguerre M. Pneumocystis pneumonia in patients with Cushing's syndrome: A French multicenter retrospective study. ANNALES D'ENDOCRINOLOGIE 2023; 84:37-44. [PMID: 36183804 DOI: 10.1016/j.ando.2022.09.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/02/2022] [Accepted: 09/05/2022] [Indexed: 10/14/2022]
Abstract
OBJECTIVE Pneumocystis pneumonia (PcP) is an opportunistic infection occurring in immunocompromised patients. Cushing's syndrome (CS) impairs the immune system, and several authors have reported PcP in patients with CS. The present study aimed to characterize PcP occurring in a CS context and its management in French tertiary centers, in order to highlight the similarities in clinical presentation and treatment according to whether prophylaxis is implemented or not. METHODS This was a multicenter retrospective study conducted in several French University Hospitals and Cancer Centers. Patients with PcP and confirmed CS regardless of etiology were included. We excluded patients with other known causes of acquired immunodeficiency with increased risk of PcP. RESULTS Twenty-five patients were included. CS etiology was neoplastic in 84.0% of cases. CS clinical presentation associated predominant catabolic signs (76.0%), hypokalemia (91.7%) and lymphopenia (89.5%). CS was intense in most patients, with mean plasma cortisol levels at diagnosis of 2.424±1.102nmol/L and urinary free cortisol>10× the upper limit of normal in 85.0%. In all patients, PcP onset followed introduction of cortisol blockers, at a median 5.5 days. Patients were treated with 1 to 3 cortisol blockers, mainly metyrapone (88%), which significatively lowered plasma cortisol levels to 667±541nmol/L at the onset of PcP (P<0.001). PcP occurred in 7 patients despite prophylaxis. Finally, 60.0% patients were admitted to intensive care, and 20.0% died of PcP. CONCLUSION High mortality in patients with PcP implies that clinicians should be better informed about this rare infectious complication. Prophylaxis remains controversial, requiring comparative studies.
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Affiliation(s)
- Alexandre Lugat
- Medical Oncology Department, CHU de Nantes, 44000 Nantes, France; Nantes Université, Inserm 1307, CNRS 6075, Université d'Angers, CRCI2NA, Nantes, France
| | - Hélène Lasolle
- Endocrinology Department, Reference Centre for Rare Pituitary Diseases HYPO, "Groupement Hospitalier Est", Hospices Civils de Lyon, Bron, France; Lyon 1 University, Villeurbanne, France; INSERM U1052, CNRC UMR5286, Cancer Research Centre of Lyon (CRLC), Lyon, France
| | - Maud François
- Endocrinology, Diabetology and Nutrition, Centre Hospitalier Universitaire de Reims, Reims, France
| | | | - Léopoldine Bricaire
- Department of Endocrinology and National Reference Center for Rare Adrenal Disorders, Hôpital Cochin, Assistance publique-Hôpitaux de Paris, 75014 Paris, France
| | - Erika Cornu
- Hypertension Unit, Hôpital Européen George-Pompidou, Paris, France
| | | | - Anne Gitton
- Endocrinology, Diabetology and Nutrition, Centre Hospitalier Universitaire de Reims, Reims, France
| | - Julien Hadoux
- Department of Endocrine Oncology and Nuclear Medicine, Gustave-Roussy and University Paris-Saclay, Villejuif, France
| | - Véronique Kerlan
- Department of Endocrinology, Diabetes and Metabolic Diseases, Hôpital de la Cavale-Blanche, Brest, France
| | - Maëlle Le Bras
- Department of Endocrinology, Diabetology and Nutrition, l'institut du thorax, CHU Nantes, Nantes, France
| | - Vincent Mezzaroba
- Endocrinology Department, Reference Centre for Rare Pituitary Diseases HYPO, "Groupement Hospitalier Est", Hospices Civils de Lyon, Bron, France; Lyon 1 University, Villeurbanne, France; INSERM U1052, CNRC UMR5286, Cancer Research Centre of Lyon (CRLC), Lyon, France
| | - Marie Puerto
- Department of Endocrinology, Haut Levêque University Hospital, Bordeaux, France
| | - Caroline Storey
- Department of Paediatric Endocrinology and Diabetology, Robert-Debré Teaching Hospital, Assistance publique-Hôpitaux de Paris, Paris, France
| | - Sophie Ouzounian
- Endocrinology Department, Saint-Antoine Hospital, Sorbonne Université, Assistance publique-Hôpitaux de Paris, Paris, France
| | - Bruno Donadille
- Endocrinology Department, Saint-Antoine Hospital, Sorbonne Université, Assistance publique-Hôpitaux de Paris, Paris, France
| | - Gérald Raverot
- Endocrinology Department, Reference Centre for Rare Pituitary Diseases HYPO, "Groupement Hospitalier Est", Hospices Civils de Lyon, Bron, France; Lyon 1 University, Villeurbanne, France; INSERM U1052, CNRC UMR5286, Cancer Research Centre of Lyon (CRLC), Lyon, France
| | - Delphine Drui
- Department of Endocrinology, Diabetology and Nutrition, l'institut du thorax, CHU Nantes, Nantes, France
| | - Magalie Haissaguerre
- Department of Endocrinology, Haut Levêque University Hospital, Bordeaux, France.
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Lussac-Sorton F, Fleur T, Voisin T, Issa N, Blanchard É, Charpentier É, Delhaes L. Interest of a Commercialized Pneumocystis jirovecii Quantitative PCR to Discriminate Colonization from Pneumocystis Pneumonia according to the Revised EORTC/MSGERC Criteria. J Clin Med 2022; 12:jcm12010316. [PMID: 36615116 PMCID: PMC9821677 DOI: 10.3390/jcm12010316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/25/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023] Open
Abstract
Quantitative PCR (qPCR) is highly sensitive to diagnose Pneumocystis jirovecii (Pj) pneumonia (PCP). However, differentiating PCP and colonization remains difficult. This study aimed to establish the performances of the commercialized qPCR MycoGENIE® Pj kit (Ademtech) to distinguish PCP and Pj colonization. Patients with a positive Pj qPCR on bronchoalveolar lavage (BAL) or upper respiratory tract (URT) samples were prospectively included between May 2019 and December 2020 at Bordeaux University Hospital. They were classified in “PCP” or “Pj colonization” groups based on the revised EORTC/MSGERC criteria. The two groups’ results were compared; ROC curves were produced to determine the best thresholds. Excluding the low number of HIV-positive subjects, there were 100 PCP (32 BAL, 68 URT) and 70 Pj colonization (34 BAL, 36 URT). Pj loads were significantly higher in PCP compared to Pj colonization group (p ≤ 0.01). The best cut-offs for PCP diagnosis were 31.45 Cq/8275 copies/mL for BAL and 32.33 Cq/8130 copies/mL for URT (sensitivity = 59.4%, 63.3%, specificity = 82.4%, 88.9%, respectively). Fungal load quantification using MycoGENIE® Pj qPCR helps discriminating PCP from colonization, high fungal loads being indicative of probable PCP. Low load results should be interpreted with caution, in accordance with clinical and radiological signs.
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Affiliation(s)
- Florian Lussac-Sorton
- Service de Parasitologie-Mycologie, Groupe Hospitalier Pellegrin, CHU de Bordeaux, 33000 Bordeaux, France
- Correspondence:
| | - Tara Fleur
- Service de Parasitologie-Mycologie, Groupe Hospitalier Pellegrin, CHU de Bordeaux, 33000 Bordeaux, France
| | - Thibault Voisin
- Service de Parasitologie-Mycologie, Groupe Hospitalier Pellegrin, CHU de Bordeaux, 33000 Bordeaux, France
- Eurofins, Polyclinique Bordeaux Nord, 18 Rue Henri Guillemin, 33300 Bordeaux, France
| | - Nahéma Issa
- Réanimation Médicale, Groupe Hospitalier Saint-André, CHU de Bordeaux, 33000 Bordeaux, France
| | - Élodie Blanchard
- Service de Pneumologie, Hôpital Haut-Lévêque, Groupe Hospitalier Sud, CHU de Bordeaux, 33600 Pessac, France
| | - Éléna Charpentier
- Service de Parasitologie-Mycologie, Groupe Hospitalier Pellegrin, CHU de Bordeaux, 33000 Bordeaux, France
| | - Laurence Delhaes
- Service de Parasitologie-Mycologie, Groupe Hospitalier Pellegrin, CHU de Bordeaux, 33000 Bordeaux, France
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Shima N, Kokuzawa A, Saito K, Kamata Y, Nagashima T, Sato K. Immune Reconstitution Inflammatory Syndrome Associated with Pneumocystis jirovecii Pneumonia and Cytomegalovirus Colitis in a Patient with Rheumatoid Arthritis. Intern Med 2022; 61:245-248. [PMID: 34248117 PMCID: PMC8851172 DOI: 10.2169/internalmedicine.7176-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A 68-year-old woman presenting with rheumatoid arthritis was admitted due to pancytopenia caused by methotrexate. Pneumocystis jirovecii pneumonia was diagnosed based on the abnormal shadows observed on chest computed tomography, the presence of serum β-D-glucan, and positive P. jirovecii-DNA results in a sputum analysis. Subsequently, after treatment with leucovorin and trimethoprim-sulfamethoxazole, lung consolidation was found to be aggravated, along with a rapidly increasing leukocyte count. In addition, cytomegalovirus colitis was diagnosed. Both conditions were associated with immune reconstitution inflammatory syndrome caused by recovery from leukopenia. The patient was successfully treated with intravenous methylprednisolone pulse therapy and ganciclovir.
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Affiliation(s)
- Natsuki Shima
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Jichi Medical University, Japan
| | - Ayako Kokuzawa
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Jichi Medical University, Japan
| | - Keisuke Saito
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Jichi Medical University, Japan
| | - Yasuyuki Kamata
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Jichi Medical University, Japan
| | - Takao Nagashima
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Jichi Medical University, Japan
| | - Kojiro Sato
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Jichi Medical University, Japan
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Charpentier E, Ménard S, Marques C, Berry A, Iriart X. Immune Response in Pneumocystis Infections According to the Host Immune System Status. J Fungi (Basel) 2021; 7:jof7080625. [PMID: 34436164 PMCID: PMC8399367 DOI: 10.3390/jof7080625] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/28/2021] [Accepted: 07/29/2021] [Indexed: 12/12/2022] Open
Abstract
The host immune response is critical in Pneumocystis pneumonia (PCP). Immunocompetent hosts can eliminate the fungus without symptoms, while immunodeficient hosts develop PCP with an unsuitable excessive inflammatory response leading to lung damage. From studies based on rodent models or clinical studies, this review aimed to better understand the pathophysiology of Pneumocystis infection by analysing the role of immune cells, mostly lymphocytes, according to the immune status of the infected host. Hence, this review first describes the immune physiological response in infected immunocompetent hosts that are able to eliminate the fungus. The objective of the second part is to identify the immune elements required for the control of the fungus, focusing on specific immune deficiencies. Finally, the third part concentrates on the effect of the different immune elements in immunocompromised subjects during PCP, to better understand which cells are detrimental, and which, on the contrary, are beneficial once the disease has started. This work highlights that the immune response associated with a favourable outcome of the infection may differ according to the immune status of the host. In the case of immunocompetency, a close communication between B cells and TCD4 within tertiary lymphocyte structures appears critical to activate M2 macrophages without much inflammation. Conversely, in the case of immunodeficiency, a pro-inflammatory response including Th1 CD4, cytotoxic CD8, NK cells, and IFNγ release seems beneficial for M1 macrophage activation, despite the impact of inflammation on lung tissue.
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Affiliation(s)
- Eléna Charpentier
- Department of Parasitology-Mycology, Toulouse University Hospital, 31059 Toulouse, France;
- Infinity, Inserm, CNRS, University of Toulouse III, 31024 Toulouse, France; (S.M.); (C.M.)
- Correspondence: (E.C.); (X.I.)
| | - Sandie Ménard
- Infinity, Inserm, CNRS, University of Toulouse III, 31024 Toulouse, France; (S.M.); (C.M.)
| | - Catherine Marques
- Infinity, Inserm, CNRS, University of Toulouse III, 31024 Toulouse, France; (S.M.); (C.M.)
| | - Antoine Berry
- Department of Parasitology-Mycology, Toulouse University Hospital, 31059 Toulouse, France;
- Infinity, Inserm, CNRS, University of Toulouse III, 31024 Toulouse, France; (S.M.); (C.M.)
| | - Xavier Iriart
- Department of Parasitology-Mycology, Toulouse University Hospital, 31059 Toulouse, France;
- Infinity, Inserm, CNRS, University of Toulouse III, 31024 Toulouse, France; (S.M.); (C.M.)
- Correspondence: (E.C.); (X.I.)
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Kann G, Wetzstein N, Bielke H, Schuettfort G, Haberl AE, Wolf T, Kuepper-Tetzel CP, Wieters I, Kessel J, de Leuw P, Bickel M, Khaykin P, Stephan C. Risk factors for IRIS in HIV-associated Pneumocystis-pneumonia following ART initiation. J Infect 2021; 83:347-353. [PMID: 34242683 DOI: 10.1016/j.jinf.2021.06.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/27/2021] [Accepted: 06/30/2021] [Indexed: 11/17/2022]
Abstract
BACKGROUND HIV-infected patients with Pneumocystis-pneumonia (PCP) may develop paradoxical immune reconstitution inflammatory syndrome (IRIS), when combination antiretroviral therapy (cART) is started early during the course of PCP-treatment (PCPT). The aim of this study was to identify risk factors and predictors for PCP-IRIS and to improve individualized patient care. METHODS An ICD-10 code hospital database query identified all Frankfurt HIV Cohort patients being diagnosed with PCP from January 2010 - June 2016. Patient charts were evaluated retrospectively for demographic, clinical and therapeutic (cART/PCPT) characteristics and incidence of paradoxical IRIS according to French's case definitions. RESULTS IRIS occurred in 12/97 patients that started cART while on PCPT (12.4%). They had a higher rate of re-hospitalization (41.7vs. 4.7%; odds ratio (OR) 14.46; p = 0.009), intensive care treatment (66.7vs. 30.6%; OR = 4.54; p = 0.018), and longer median hospitalization (48 days vs. 23; p < 0.001). A high HIV-RNA level (> 6Log10/ml) before cART initiation was associated with IRIS development (41.6vs. 15.0%; OR 4.05; p = 0.042). Serum immunoglobulin G-levels (IgG) [mg/dl] were lower (894.0 vs. 1446.5; p = 0.023). CONCLUSION Higher hospitalization rate and morbidity parameters underscore the clinical importance of PCP-related paradoxical IRIS. A baseline viral load of > 6Log10/ml and serum IgG may help to assess individual risks for PCP-IRIS.
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Affiliation(s)
- Gerrit Kann
- Department of Internal Medicine, Infectious Diseases, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany
| | - Nils Wetzstein
- Department of Internal Medicine, Infectious Diseases, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany
| | - Hannah Bielke
- Department of Internal Medicine, Infectious Diseases, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany
| | - Gundolf Schuettfort
- Department of Internal Medicine, Infectious Diseases, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany
| | - Annette E Haberl
- Department of Internal Medicine, Infectious Diseases, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany
| | - Timo Wolf
- Department of Internal Medicine, Infectious Diseases, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany
| | - Claus P Kuepper-Tetzel
- Department of Internal Medicine, Infectious Diseases, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany
| | - Imke Wieters
- Department of Internal Medicine, Infectious Diseases, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany
| | | | | | | | | | - Christoph Stephan
- Department of Internal Medicine, Infectious Diseases, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, Frankfurt am Main 60590, Germany.
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Cillóniz C, Dominedò C, Álvarez-Martínez MJ, Moreno A, García F, Torres A, Miro JM. Pneumocystis pneumonia in the twenty-first century: HIV-infected versus HIV-uninfected patients. Expert Rev Anti Infect Ther 2019; 17:787-801. [PMID: 31550942 DOI: 10.1080/14787210.2019.1671823] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Introduction: Pneumocystis pneumonia (PcP) has classically been described as a serious complication in patients infected with the human immunodeficiency virus (HIV). However, the emerging number of conditions associated with immunosuppression has led to its appearance in other patient populations. Areas covered: This article reviews the most recent publications on PcP in the HIV-infected and HIV-uninfected population, focusing on epidemiology, diagnostic, therapy and prevention. The data discussed here were mainly obtained from a non-systematic review using Medline and references from relevant articles including randomized clinical trials, meta-analyses, observational studies and clinical reviews. Expert opinion: The growing incidence of Pneumocystis infection in the HIV-uninfected population suggests the need for new global epidemiological studies in order to identify the true scale of the disease in this population. These data would allow us to improve diagnosis, therapeutic strategies, and clinical management. It is very important that both patients and physicians realize that HIV-uninfected patients are at risk of PcP and that rapid diagnosis and early initiation of treatment are associated with better prognosis. Currently, in-hospital mortality rates are very high: 15% for HIV-infected patients and 50% in some HIV-uninfected patients. Therefore, adequate preventive measures should be implemented to avoid the high mortality rates seen in recent decades.
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Affiliation(s)
- Catia Cillóniz
- Department of Pneumology, Hospital Clinic, Barcelona; August Pi i Sunyer Biomedical Research Institute (IDIBAPS); University of Barcelona; SGR 911; Biomedical Research Networking Centres in Respiratory Diseases (CIBERES) , Barcelona , Spain
| | - Cristina Dominedò
- Department of Anesthesiology and Intensive Care Medicine, Fondazione Policlinico Universitario A. Gemelli, Università Cattolica del Sacro Cuore , Rome , Italy
| | | | - Asunción Moreno
- Department of Infectious Diseases, Hospital Clinic, Barcelona; IDIBAPS; University of Barcelona , Barcelona , Spain
| | - Felipe García
- Department of Infectious Diseases, Hospital Clinic, Barcelona; IDIBAPS; University of Barcelona , Barcelona , Spain
| | - Antoni Torres
- Department of Pneumology, Hospital Clinic, Barcelona; August Pi i Sunyer Biomedical Research Institute (IDIBAPS); University of Barcelona; SGR 911; Biomedical Research Networking Centres in Respiratory Diseases (CIBERES) , Barcelona , Spain
| | - José M Miro
- Department of Infectious Diseases, Hospital Clinic, Barcelona; IDIBAPS; University of Barcelona , Barcelona , Spain
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9
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Dellière S, Guery R, Candon S, Rammaert B, Aguilar C, Lanternier F, Chatenoud L, Lortholary O. Understanding Pathogenesis and Care Challenges of Immune Reconstitution Inflammatory Syndrome in Fungal Infections. J Fungi (Basel) 2018; 4:E139. [PMID: 30562960 PMCID: PMC6308948 DOI: 10.3390/jof4040139] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 12/14/2018] [Accepted: 12/15/2018] [Indexed: 12/16/2022] Open
Abstract
Immune deficiency of diverse etiology, including human immunodeficiency virus (HIV), antineoplastic agents, immunosuppressive agents used in solid organ recipients, immunomodulatory therapy, and other biologics, all promote invasive fungal infections. Subsequent voluntary or unintended immune recovery may induce an exaggerated inflammatory response defining immune reconstitution inflammatory syndrome (IRIS), which causes significant mortality and morbidity. Fungal-associated IRIS raises several diagnostic and management issues. Mostly studied with Cryptococcus, it has also been described with other major fungi implicated in human invasive fungal infections, such as Pneumocystis, Aspergillus, Candida, and Histoplasma. Furthermore, the understanding of IRIS pathogenesis remains in its infancy. This review summarizes current knowledge regarding the clinical characteristics of IRIS depending on fungal species and existing strategies to predict, prevent, and treat IRIS in this patient population, and tries to propose a common immunological background to fungal IRIS.
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Affiliation(s)
- Sarah Dellière
- Medical School, Paris-Descartes University, APHP, Necker-Enfants Malades Hospital, Infectious Disease Center Necker-Pasteur, IHU Imagine, 75015 Paris, France.
| | - Romain Guery
- Medical School, Paris-Descartes University, APHP, Necker-Enfants Malades Hospital, Infectious Disease Center Necker-Pasteur, IHU Imagine, 75015 Paris, France.
| | - Sophie Candon
- Medical School, Paris-Descartes University, INSERM U1151-CNRS UMR 8253APHP, Necker-Enfants Malades Hospital, APHP, Clinical Immunology, 75015 Paris, France.
| | - Blandine Rammaert
- Medical School, Poitiers University, Poitiers, France; Poitiers University Hospital, Infectious Disease Unit, Poitiers, France; INSERM U1070, 86022 Poitiers, France.
| | - Claire Aguilar
- Medical School, Paris-Descartes University, APHP, Necker-Enfants Malades Hospital, Infectious Disease Center Necker-Pasteur, IHU Imagine, 75015 Paris, France.
| | - Fanny Lanternier
- Medical School, Paris-Descartes University, APHP, Necker-Enfants Malades Hospital, Infectious Disease Center Necker-Pasteur, IHU Imagine, 75015 Paris, France.
- Pasteur Institute, Molecular Mycology Unit, National Reference Center for Invasive Fungal Disease and Antifungals, CNRS UMR 2000, 75015 Paris, France.
| | - Lucienne Chatenoud
- Medical School, Paris-Descartes University, INSERM U1151-CNRS UMR 8253APHP, Necker-Enfants Malades Hospital, APHP, Clinical Immunology, 75015 Paris, France.
| | - Olivier Lortholary
- Medical School, Paris-Descartes University, APHP, Necker-Enfants Malades Hospital, Infectious Disease Center Necker-Pasteur, IHU Imagine, 75015 Paris, France.
- Pasteur Institute, Molecular Mycology Unit, National Reference Center for Invasive Fungal Disease and Antifungals, CNRS UMR 2000, 75015 Paris, France.
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10
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de Boer MGJ, Walzer PD, Mori S. Healthcare related transmission of Pneumocystis pneumonia: From key insights toward comprehensive prevention. Transpl Infect Dis 2018; 20:e12942. [PMID: 29873156 DOI: 10.1111/tid.12942] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 04/21/2018] [Accepted: 05/28/2018] [Indexed: 12/15/2022]
Abstract
In at risk populations, Pneumocystis pneumonia (PCP) may occur as a solitary event as well as in a cluster- or outbreak setting due to interpatient transmission of Pneumocystis jirovecii. Despite the data and insights obtained from studies of outbreaks of PCP, the development and implementation of comprehensive recommendations for the prevention of healthcare related transmission of P. jirovecii have been delayed. Both optimization of chemoprophylaxis strategies as well as combination with prudent use of isolation precautions are warranted to achieve this goal. The rationale of the available measures for the prevention of PCP should be viewed in the context of what is currently known about the complex biology and epidemiology of P. jirovecii. From there, phased but practical prevention strategies can be deducted to balance the efforts, costs and negative consequences of chemoprophylaxis and isolation precautions with the beneficial effect of preventing healthcare related transmission of P. jirovecii and development of PCP.
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Affiliation(s)
- Mark G J de Boer
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
| | - Peter D Walzer
- Division of Infectious Diseases, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Shunsuke Mori
- Department of Rheumatology, Clinical Research Center for Rheumatic Diseases, NHO Kumamoto Saishunsou National Hospital, Kumamoto, Japan
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11
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Roade Tato L, Burgos Cibrian J, Curran Fábregas A, Navarro Mercadé J, Willekens R, Martín Gómez MT, Ribera Pascuet E, Falcó Ferrer V. Immune reconstitution inflammatory syndrome in HIV-infected patients with Pneumocystis jirovecii pneumonia. Enferm Infecc Microbiol Clin 2017; 36:621-626. [PMID: 29187293 DOI: 10.1016/j.eimc.2017.11.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 10/23/2017] [Accepted: 11/01/2017] [Indexed: 02/06/2023]
Abstract
INTRODUCTION The incidence of immune reconstitution inflammatory syndrome (IRIS) in HIV-infected patients after an episode of Pneumocystis jirovecii pneumonia (PJP) seems to be lower than with other opportunistic infections. We conducted an observational study in order to determine the incidence, clinical characteristics and outcome of patients diagnosed with PJP-related IRIS. METHODS We conducted an observational study of HIV patients diagnosed with PJP-related IRIS from January 2000 to November 2015. We analyzed epidemiological and clinical characteristics as well as laboratory findings. We also carried out a systematic review of published cases. RESULTS Six cases of IRIS out of 123 (4.9%) HIV-infected patients with PJP who started ART were diagnosed. All six cases were men with a median age of 34 (IQR: 8) years. The six patients developed paradoxical IRIS. Subjects younger than 40 years old (p=0.084) and with an HIV-RNA viral load >100000 copies/ml (p=0.081) at diagnosis showed a tendency to develop IRIS. Thirty-seven published cases of PJP-related IRIS were identified. Although 51% of cases involved respiratory failure, no deaths were reported. CONCLUSIONS PJP-related IRIS is rare condition compared to other opportunistic infections. It can lead to a severe respiratory failure in a significant proportion of cases, although no deaths have been reported.
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Affiliation(s)
- Luisa Roade Tato
- Infectious Diseases Department, University Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain.
| | - Joaquín Burgos Cibrian
- Infectious Diseases Department, University Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Adrià Curran Fábregas
- Infectious Diseases Department, University Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Jordi Navarro Mercadé
- Infectious Diseases Department, University Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Rein Willekens
- Infectious Diseases Department, University Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - María Teresa Martín Gómez
- Microbiology Department, University Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Esteban Ribera Pascuet
- Infectious Diseases Department, University Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Vicenç Falcó Ferrer
- Infectious Diseases Department, University Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
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12
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Gopal R, Rapaka RR, Kolls JK. Immune reconstitution inflammatory syndrome associated with pulmonary pathogens. Eur Respir Rev 2017; 26:26/143/160042. [PMID: 28049128 PMCID: PMC5642276 DOI: 10.1183/16000617.0042-2016] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 06/09/2016] [Indexed: 12/21/2022] Open
Abstract
Immune reconstitution inflammatory syndrome (IRIS) is an exaggerated immune response to a variety of pathogens in response to antiretroviral therapy-mediated recovery of the immune system in HIV-infected patients. Although IRIS can occur in many organs, pulmonary IRIS, associated with opportunistic infections such as Mycobacterium tuberculosis and Pneumocystis jirovecii, is particularly associated with high morbidity and mortality. The pathology of IRIS is associated with a variety of innate and adaptive immune factors, including CD4+ T-cells, CD8+ T-cells, γδ T-cells, natural killer cells, macrophages, the complement system and surfactant proteins, Toll-like receptors and pro-inflammatory cytokines and chemokines. Although there are numerous reports about the immune factors involved in IRIS, the mechanisms involved in the development of pulmonary IRIS are poorly understood. Here, we propose that studies using gene-deficient murine and nonhuman primate models will help to identify the specific molecular targets associated with the development of IRIS. An improved understanding of the mechanisms involved in the pathology of pulmonary IRIS will help to identify potential biomarkers and therapeutic targets in this syndrome. Mechanisms of pulmonary IRIS in HIV-infected individuals recently initiated on ART are poorly definedhttp://ow.ly/AAOR301Bh36
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Affiliation(s)
- Radha Gopal
- Richard King Mellon Foundation Institute for Pediatric Research, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, PA, USA
| | - Rekha R Rapaka
- Division of Infectious Diseases and Center for Vaccine Development, University of Maryland Medical Center, Baltimore, MD, USA
| | - Jay K Kolls
- Richard King Mellon Foundation Institute for Pediatric Research, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, PA, USA
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13
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Alby-Laurent F, Dollfus C, Ait-Oufella H, Rambaud J, Legrand O, Tabone MD, Hennequin C. Trichosporon
: another yeast-like organism responsible for immune reconstitution inflammatory syndrome in patients with hematological malignancy. Hematol Oncol 2016; 35:900-904. [DOI: 10.1002/hon.2309] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Revised: 04/08/2016] [Accepted: 04/27/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Fanny Alby-Laurent
- Service d'Hémato-Oncologie Pédiatrique; AP-HP, Hôpital A. Trousseau; Paris France
- Service de Réanimation Pédiatrique; AP-HP, Hôpital A. Trousseau; Paris France
| | - Catherine Dollfus
- Service d'Hémato-Oncologie Pédiatrique; AP-HP, Hôpital A. Trousseau; Paris France
| | - Hafid Ait-Oufella
- Service de Réanimation Médicale; AP-HP, Hôpital St Antoine; Paris France
| | - Jerome Rambaud
- Service de Réanimation Pédiatrique; AP-HP, Hôpital A. Trousseau; Paris France
| | - Ollivier Legrand
- Service d'hématologie clinique et de thérapie cellulaire; AP-HP, Hôpital St Antoine; Paris France
| | | | - Christophe Hennequin
- Assistance Publique-Hôpitaux de Paris; Hôpital St Antoine, Service de Parasitologie-Mycologie; Paris France
- Inserm; U1135, CIMI-Paris; Paris France
- CNRS; ERL 8255, CIMI-Paris; Paris France
- Sorbonne Universités; UPMC Univ Paris 06, CR7, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris); Paris France
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14
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Immune Reconstitution Inflammatory Syndrome in Invasive Fungal Infections: What We Know and What We Need to Know? CURRENT CLINICAL MICROBIOLOGY REPORTS 2016. [DOI: 10.1007/s40588-016-0033-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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15
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Takahama S, Kaku Y, Nakashima E, Minami R, Yamamoto M. [The Usefulness of the Scan with 67Ga-citrate to Assess the Therapeutic Effect on Pneumocystis pneumonia with HIV-1 Infection]. ACTA ACUST UNITED AC 2016; 89:254-8. [PMID: 26552122 DOI: 10.11150/kansenshogakuzasshi.89.254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Peumocystis pneumonia (PCP) is one of the common opportunistic infections with severe respiratory failure, and is sometimes life-threatening in patients with the acquired immunodeficiency syndrome. Although treatment for PCP is established, an appropriate treatment period has not been evaluated to clarify the risk factors for immune reconstitution inflammatory syndrome (IRIS) associated with PCP. METHOD We retrospectively analyzed the clinical characteristics of risk factor, which are the treatment period for PCP, and 67Ga scintigraphy (Ga-S) at the 21st day from the start of the treatment for PCP, with 21 cases of PCP and HIV infection treated during 2005-2012 at Kyushu Medical Center. RESULT The rate of residual uptake by Ga-S was assessed in 17 cases (81%). Four cases were diagnosed as being PCP-IRIS, and residual uptake by Ga-S was detected in all PCP-IRIS cases. The durations of the therapy were classified into three groups: 21 days, 28 days, and 35 days. All PCP-IRIS cases were treated in the period of 28 days. In contrast, in 11 cases that showed residual uptake by Ga-S, and were treated for PCP in 35 days, PCP-IRIS did not occur. Additionally, there were 4 cases in which residual uptake by Ga-S did not occur. They were treated with PCP for only 21 days, but did not show PCP-IRIS. CONCLUSION In this study, we showed that Ga-S is useful to evaluate the therapeutic effect. Furthermore, we found that the occurrence of PCP-IRIS could be prevented with the early start of cART after 21 days treatment for PCP, when residual uptake by Ga-S after the first treatment for PCP was not detected. It may also be possible to start cART in the early phase after its treatment without the occurrence of PCP-IRIS with the appropriate additional treatment of PCP for 14 days. These guidelines for treatment of PCP in HIV-infected adults and adolescents have been recommended for the duration of 21 days since 1984. We propose that for the prevention of PCP-IRIS, it is nessecory to reconsider recommendation for the treatment duration of 21 days, and meanwhile to evaluate the treatment effect of PCP with Ga-S, because PCP resistance to sulfa drugs, namely are trimethoprim-sulfamethoxazole, is beginning to appear.
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16
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Shahani L, Hamill RJ. Therapeutics targeting inflammation in the immune reconstitution inflammatory syndrome. Transl Res 2016; 167:88-103. [PMID: 26303886 DOI: 10.1016/j.trsl.2015.07.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 07/14/2015] [Accepted: 07/31/2015] [Indexed: 02/04/2023]
Abstract
Immune reconstitution inflammatory syndrome (IRIS) is characterized by improvement in a previously incompetent human immune system manifesting as worsening of clinical symptoms secondary to the ability of the immune system to now mount a vigorous inflammatory response. IRIS was first recognized in the setting of human immunodeficiency virus, and this clinical setting continues to be where it is most frequently encountered. Hallmarks of the pathogenesis of IRIS, independent of the clinical presentation and the underlying pathogen, include excessive activation of the immune system, with increased circulating effector memory T cells, and elevated levels of serum cytokines and inflammatory markers. Patients with undiagnosed opportunistic infections remain at risk for unmasking IRIS at the time of active antiretroviral therapy (ART) initiation. Systematic screening for opportunistic infections before starting ART is a key element to prevent this phenomenon. Appropriate management of IRIS requires prompt recognition of the syndrome and exclusion of alternative diagnoses, particularly underlying infections and drug resistance. Controlled studies supporting the use of pharmacologic interventions in IRIS are scare, and recommendations are based on case series and expert opinions. The only controlled trial published to date, showed reduction in morbidity in patients with paradoxical tuberculosis-related IRIS with the use of oral corticosteroids. There are currently limited data to recommend other anti-inflammatory or immunomodulatory therapies that are discussed in this review, and further research is needed. Ongoing research regarding the immune pathogenesis of IRIS will likely direct future rational therapeutic approaches and clinical trials.
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Affiliation(s)
- Lokesh Shahani
- Section of Infectious Diseases, Department of Medicine, Baylor College of Medicine, Houston, Tex
| | - Richard J Hamill
- Section of Infectious Diseases, Department of Medicine, Baylor College of Medicine, Houston, Tex; Medical Care Line, Section of Infectious Diseases, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Tex.
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