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Liu L, Ji T, Chen R, Fan L, Dai J, Qiu Y. High prevalence of pneumocystis pneumonia in interstitial lung disease: a retrospective study. Infection 2024; 52:985-993. [PMID: 38147199 DOI: 10.1007/s15010-023-02148-y] [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: 07/09/2023] [Accepted: 11/27/2023] [Indexed: 12/27/2023]
Abstract
BACKGROUND Interstitial lung disease (ILD) is a new risk category for pneumocystis pneumonia (PCP) with a high mortality rate. The definite diagnostic criteria of PCP in ILD patients have not been established until now. The aims of this study were to identify potential risk factors of PCP in patients with ILD, and to evaluate the performance of metagenomic next-generation sequencing (mNGS), CD4 + T cell count, (1-3)-β-D-Glucan (BG) and lactate dehydrogenase (LDH) in the diagnosis of PCP in ILD patients. METHODS This is a retrospective, single-center, case-control study. ILD patients who underwent mNGS from December 2018 to December 2022 were included in the study. Based on the diagnosis criteria of PCP, these patients were divided into PCP-ILD and non-PCP-ILD groups. The potential risk factors for PCP occurrence in ILD patients were analysed via logistic regression. The diagnostic efficacy of mNGS was compared with serological biomarkers. RESULTS 92 patients with ILD were enrolled, 31 of which had a definite PCP and were assigned to the PCP-ILD group while 61 were to the non-PCP-ILD group. The infection rate of PJ in ILD patients was 33.7% (31/92). The history of glucocorticoid therapy, CD4 + T cell count, BG level and traction bronchiectasis on HRCT were associated with PCP occurrence in ILD patients. LDH level did not reach statistical significance in the logistic regression analysis. mNGS was confirmed as the most accurate test for PCP diagnosis in ILD patients. CONCLUSION ILD is a new risk group of PCP with high PCP prevalence. Clinicians should pay close attention to the occurrence of PCP in ILD patients who possess the risk factors of previous glucocorticoid therapy, decreased CD4 + T cell count, increased BG level and absence of traction bronchiectasis on HRCT. mNGS showed the most excellent performance for PCP diagnosis in ILD patients. Peripheral blood CD4 + T cell count and BG level are alternative diagnostic methods for PCP in ILD patients. However, the diagnostic value of serum LDH level was limited in ILD patients.
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Affiliation(s)
- Ling Liu
- Department of Respiratory and Critical Care Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Tong Ji
- Department of Respiratory and Critical Care Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Ranxun Chen
- Department of Respiratory and Critical Care Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Li Fan
- Department of Respiratory and Critical Care Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Jinghong Dai
- Department of Respiratory and Critical Care Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China.
| | - Yuying Qiu
- Department of Respiratory and Critical Care Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China.
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Therapy and Management of Pneumocystis jirovecii Infection. J Fungi (Basel) 2018; 4:jof4040127. [PMID: 30469526 PMCID: PMC6313306 DOI: 10.3390/jof4040127] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 11/08/2018] [Accepted: 11/11/2018] [Indexed: 12/21/2022] Open
Abstract
The rates of Pneumocystis pneumonia (PcP) are increasing in the HIV-negative susceptible population. Guidance for the prophylaxis and treatment of PcP in HIV, haematology, and solid-organ transplant (SOT) recipients is available, although for many other populations (e.g., auto-immune disorders) there remains an urgent need for recommendations. The main drug for both prophylaxis and treatment of PcP is trimethoprim/sulfamethoxazole, but resistance to this therapy is emerging, placing further emphasis on the need to make a mycological diagnosis using molecular based methods. Outbreaks in SOT recipients, particularly renal transplants, are increasingly described, and likely caused by human-to-human spread, highlighting the need for efficient infection control policies and sensitive diagnostic assays. Widespread prophylaxis is the best measure to gain control of outbreak situations. This review will summarize diagnostic options, cover prophylactic and therapeutic management in the main at risk populations, while also covering aspects of managing resistant disease, outbreak situations, and paediatric PcP.
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Yunina DS, Elkayam N, Patel S, Okoli F, Chapnick E, Hecht M. Newly diagnosed AIDS with neurosyphilis, Kaposi sarcoma, pancytopenia, oropharyngeal candidiasis, and pseudomonal pneumonia: We shouldn't be seeing this anymore. IDCases 2018; 13:e00426. [PMID: 30101071 PMCID: PMC6076223 DOI: 10.1016/j.idcr.2018.e00426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 07/07/2018] [Accepted: 07/07/2018] [Indexed: 10/28/2022] Open
Abstract
The incidence of new human immunodeficiency virus (HIV) infections is declining and is half of what it was in the mid 1990s. We present a case of newly diagnosed HIV with acquired immune deficiency syndrome (AIDS), Neurosyphilis, Kaposi Sarcoma, and multiple opportunistic infections. Although this type of patient was not uncommon in the pre-antiretroviral era, we do not often see such a constellation of conditions in a single individual. The significance of this case lies not in the diagnosis, but rather in the number of the diagnoses and the thought process used to attain them.
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Affiliation(s)
- Daria S. Yunina
- Internal Medicine, Department of Medicine, Maimonides Medical Center, Brooklyn, NY, USA,Corresponding author at: Dept of Internal Medicine, Maimonides Medical Center, NY, 11219, USA.
| | - Natalie Elkayam
- Internal Medicine, Department of Medicine, Maimonides Medical Center, Brooklyn, NY, USA
| | - Shanti Patel
- Internal Medicine, Department of Medicine, Maimonides Medical Center, Brooklyn, NY, USA
| | - Fidelis Okoli
- Internal Medicine, Department of Medicine, Maimonides Medical Center, Brooklyn, NY, USA
| | - Edward Chapnick
- Infectious Disease, Department of Medicine, Maimonides Medical Center, Brooklyn, NY, USA
| | - Melvyn Hecht
- Geriatrics, Department of Medicine, Maimonides Medical Center, Brooklyn, NY, USA
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Vera C, Aguilar YA, Vélez LA, Rueda ZV. High transient colonization by Pneumocystis jirovecii between mothers and newborn. Eur J Pediatr 2017; 176:1619-1627. [PMID: 28913714 DOI: 10.1007/s00431-017-3011-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 08/23/2017] [Accepted: 09/04/2017] [Indexed: 12/20/2022]
Abstract
UNLABELLED The aim of the study was to explore the frequency and dynamics of acquisition and colonization of Pneumocystis jirovecii among neonates, as well as the epidemiological and genotypic characteristics in mother-child binomial. In a prospective enrolled cohort of women in their third trimester of pregnancy, nasopharyngeal swabs (NPS) and clinical and epidemiological data were collected at four different times: 17 days, 2nd, 4th, and 6th month of life of the newborn. P. jirovecii was detected by nested-PCR for the mtLSU-rRNA gene in each NPS; the genotypes were determined amplifying four genes. Forty-three pairs and 301 NPS were included. During the third trimester, 16.3% of pregnant women were colonized. The rate of colonization in mothers at delivery was 16, 6, 16, and 5% and in their children 28, 43, 42, and 25%, respectively. Within pregnant women, 53% remained negative throughout follow-up, and among these, 91% of their children were positive in at least one of their samples. In both, mothers and children, the most frequent genotype of P. jirovecii was 1. CONCLUSION The frequency of colonization by P. jirovecii was higher in newborns than in their respective progenitors. Colonization of both mothers and children is transitory; however, the mother of the newborn is not necessarily the source of primary infection. What is Known: • We did not find studies comparing P. jirovecii colonization between mothers and children simultaneously, yet the frequency of colonization by serologic and molecular methods in pregnant women has been reported. What is New: • According to our findings, 3/4 of the children had transient colonization during the first 6 months of life, in only half in the mothers, without proof of mother-to-child transmission or vice versa.
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Affiliation(s)
- Cristian Vera
- Grupo investigador de Problemas en Enfermedades Infecciosas (GRIPE), Universidad de Antioquia, Medellín, Colombia.
- Facultad Nacional de Salud Pública, Universidad de Antioquia, Medellín, Colombia.
| | - Yudy A Aguilar
- Grupo investigador de Problemas en Enfermedades Infecciosas (GRIPE), Universidad de Antioquia, Medellín, Colombia
| | - Lázaro A Vélez
- Grupo investigador de Problemas en Enfermedades Infecciosas (GRIPE), Universidad de Antioquia, Medellín, Colombia
- Sección de Enfermedades Infecciosas, Hospital Universitario San Vicente Fundación, Medellín, Colombia
| | - Zulma Vanessa Rueda
- Facultad de Medicina, Universidad Pontificia Bolivariana, Medellín, Colombia
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Pingili CS, Sivapalan V. PJP granuloma in an Immune competent host: Case report and literature review. IDCases 2017; 10:32-34. [PMID: 28856102 PMCID: PMC5565774 DOI: 10.1016/j.idcr.2017.06.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 06/15/2017] [Accepted: 06/26/2017] [Indexed: 11/25/2022] Open
Abstract
PJP (Pneumocystis jirovecii) is a fungal agent by taxonomy. Ones considered a protozoan, it is now recognized as fungi based on ribosomal RNA and other gene sequence homologies, the composition of their cell walls, and structure of key enzymes. This organism generally affects immunocompromised hosts with a CD4 count <200 or <15%.Review of literature does support a rare occurrence of PJP infections in immunocompetent hosts.PJP can occur at normal CD 4 levels.
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Affiliation(s)
- Chandra S Pingili
- Columbia University medical center, The Affiliation at Harlem hospital, New York, USA.,Lincoln medical & mental health center, New York, USA
| | - Vel Sivapalan
- Columbia University medical center, The Affiliation at Harlem hospital, New York, USA.,Lincoln medical & mental health center, New York, USA
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Messiaen PE, Cuyx S, Dejagere T, van der Hilst JC. The role of CD4 cell count as discriminatory measure to guide chemoprophylaxis against Pneumocystis jirovecii pneumonia in human immunodeficiency virus-negative immunocompromised patients: A systematic review. Transpl Infect Dis 2017; 19. [PMID: 28035717 DOI: 10.1111/tid.12651] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Revised: 09/11/2016] [Accepted: 09/17/2016] [Indexed: 11/27/2022]
Abstract
BACKGROUND In recent years, the incidence of Pneumocystis jirovecii pneumonia (PJP) has increased in immunocompromised patients without human immunodeficiency virus (HIV) infection. Chemoprophylaxis with trimethoprim-sulfamethoxazole (TMP-SMX) is highly effective in preventing PJP in both HIV-positive and -seronegative patients. In HIV-positive patients, the risk of PJP is strongly correlated with decreased CD4 cell count. The role of CD4 cell count in the pathogenesis of PJP in non-HIV immunocompromised patients is less well studied. For most immunosuppressive conditions, no clear guidelines indicate whether to start TMP-SMX. METHOD We conducted a systematic literature review with the aim to provide a comprehensive overview on the role of CD4 cell counts in managing the risk of PJP in HIV-seronegative patients. RESULTS Of the 63 individual studies retrieved, 14 studies report on CD4 cell counts in a variety of immunosuppressive conditions. CD4 cell count were <200/μL in 73.1% of the patients. CONCLUSION CD4 cell count <200/μL is a sensitive biomarker to identify non-HIV immunocompromised patients who are at risk for PJP. Measuring CD4 cell counts could help clinicians identify patients who may benefit from TMP-SMX prophylaxis.
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Affiliation(s)
- Peter E Messiaen
- Department of Infectious Diseases and Immunity, Jessa Hospital, Hasselt, Belgium.,Biomedical Research Institute BIOMED, Hasselt University, Hasselt, Belgium
| | - Senne Cuyx
- Department of Infectious Diseases and Immunity, Jessa Hospital, Hasselt, Belgium
| | - Tom Dejagere
- Department of Nephrology, Jessa Hospital, Hasselt, Belgium
| | - Jeroen C van der Hilst
- Department of Infectious Diseases and Immunity, Jessa Hospital, Hasselt, Belgium.,Biomedical Research Institute BIOMED, Hasselt University, Hasselt, Belgium
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Ye WL, Tang N, Wen YB, Li H, Li MX, Du B, Li XM. Underlying renal insufficiency: the pivotal risk factor for Pneumocystis jirovecii pneumonia in immunosuppressed patients with non-transplant glomerular disease. Int Urol Nephrol 2016; 48:1863-1871. [PMID: 27351666 DOI: 10.1007/s11255-016-1324-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Accepted: 05/17/2016] [Indexed: 12/15/2022]
Abstract
PURPOSES Data on PCP in patients with glomerular disease are rare. The aim of this study was to assess the predictors of PCP development, the risk factors for mortality and the incidence of acute kidney injury (AKI) when high-dose trimethoprim-sulphamethoxazole (TMP-SMX) was used in patients with non-transplant glomerular disease. METHODS Forty-seven patients with PCP, as confirmed by positive results for Pneumocystis jirovecii DNA or Pneumocystis jirovecii cysts tested by a methenamine silver stain between January 1, 2003, and December 30, 2012, were retrospectively investigated. The baseline characteristics of glomerular disease, clinical findings of PCP and renal parameters after treatment were collected. Predictors for PCP development and risk factors for mortality were determined using a multivariate logistic regression analysis. RESULTS All PCP patients exclusively received immunosuppressants. Baseline renal insufficiency [estimated glomerular filtration rate (eGFR) <60 mL/min·1.73 m2] was present in 87.23 % of patients. The overall mortality rate was 29.79 %. A pulmonary coinfection and the need for mechanical ventilation were independently associated with PCP mortality. A lower eGFR, lower serum albumin level and a higher percentage of global glomerulosclerosis were independent predictors of PCP in patients with IgA nephropathy receiving immunosuppressants. AKI occurred in 60.47 % of patients who received TMP-SMX. After treatment cessation, 93.75 % of surviving patients showed a recovery of renal function to baseline values. CONCLUSIONS PCP is a fatal complication in patients with glomerular disease, and the use of immunosuppressants may be a basic risk factor for this infection. Underlying renal insufficiency and high renal pathology chronicity are the key risk factors for PCP in IgA nephropathy. TMP-SMX therapy remains an ideal choice because of high treatment response and frequently reversible kidney injury.
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Affiliation(s)
- Wen-Ling Ye
- Department of Nephrology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Nan Tang
- Department of Nephrology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Yu-Bing Wen
- Department of Nephrology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Hang Li
- Department of Nephrology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Min-Xi Li
- Department of Nephrology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Bin Du
- Intensive Care Unit, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Xue-Mei Li
- Department of Nephrology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.
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