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Yang R, Xu M, Zhang L, Liao Y, Liu Y, Deng X, Wang L. Human Strongyloides stercoralis infection. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2024:S1684-1182(24)00120-8. [PMID: 39142910 DOI: 10.1016/j.jmii.2024.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 06/14/2024] [Accepted: 07/15/2024] [Indexed: 08/16/2024]
Abstract
Strongyloides stercoralis is an important soil-transmitted helminth occurring world-wide and affecting 30-100 million people. Because many cases are asymptomatic and sensitive diagnostic methods are lacking, S. stercoralis infection is frequently underdiagnosed. The increasing incidence of autoimmune and wasting diseases and increased use of immunosuppressive agents, as well as the increased use of immunosuppressants and cytotoxic drugs, have increased S. stercoralis infection and their mortality. This review provides information about S. stercoralis epidemiology, life cycle, aetiology, pathology, comorbidities, immunology, vaccines, diagnosis, treatment, prevention, control and makes some recommendations for future prevention and control of this important parasite.
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Affiliation(s)
- Ruibing Yang
- Guangzhou Kingmed Center for Clinical Laboratory, Guangzhou, Guangdong 510320, China
| | - Meiyining Xu
- Department of Parasitology of Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Lichao Zhang
- Guangdong Clinical Laboratory Center Guangdong Provincial People's Hospital, Guangzhou 510080, China
| | - Yao Liao
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, KingMed School of Laboratory Medicine, Guangzhou Medical University, Guangzhou, Guangdong 510180, China
| | - Yuheng Liu
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, KingMed School of Laboratory Medicine, Guangzhou Medical University, Guangzhou, Guangdong 510180, China
| | - Xiaoyan Deng
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, KingMed School of Laboratory Medicine, Guangzhou Medical University, Guangzhou, Guangdong 510180, China.
| | - Lifu Wang
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, KingMed School of Laboratory Medicine, Guangzhou Medical University, Guangzhou, Guangdong 510180, China.
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Rojas OC, Montoya AM, Villanueva-Lozano H, Carrion-Alvarez D. Severe strongyloidiasis: a systematic review and meta-analysis of 339 cases. Trans R Soc Trop Med Hyg 2023; 117:682-696. [PMID: 37300462 DOI: 10.1093/trstmh/trad032] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 12/15/2022] [Accepted: 05/16/2023] [Indexed: 06/12/2023] Open
Abstract
Strongyloidiasis is a parasitosis representing a significant public health problem in tropical countries. It is often asymptomatic in immunocompetent individuals but its mortality rate increases to approximately 87% in severe forms of the disease. We conducted a systematic review, including case reports and case series, of Strongyloides hyperinfection and dissemination from 1998 to 2020 searching PubMed, EBSCO and SciELO. Cases that met the inclusion criteria of the Preferred Reported Items for Systematic Reviews and Meta-Analyses (PRISMA) checklist were analysed. Statistical analysis was performed using Fisher's exact test and Student's t-test and a Bonferroni correction for all the significant values. A total of 339 cases were included in this review. The mortality rate was 44.83%. The presence of infectious complications, septic shock and a lack of treatment were risk factors for a fatal outcome. Eosinophilia and ivermectin treatment were associated with an improved outcome.
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Affiliation(s)
- Olga C Rojas
- Departamento de Microbiología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Facultad de Medicina, Dr Eleuterio Gonzalez Gonzalitos-Francisco I. Madero s/n 64460, Monterrey, Nuevo Leon, Mexico
| | - Alexandra M Montoya
- Departamento de Microbiología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Facultad de Medicina, Dr Eleuterio Gonzalez Gonzalitos-Francisco I. Madero s/n 64460, Monterrey, Nuevo Leon, Mexico
| | - Hiram Villanueva-Lozano
- Departamento de Medicina Interna, Hospital Regional ISSSTE Monterrey, Av. Adolfo López Mateos, 122 Burócratas Federales 64380, Monterrey, Nuevo León, Mexico
| | - Diego Carrion-Alvarez
- Departamento de Medicina Interna, Hospital Regional ISSSTE Monterrey, Av. Adolfo López Mateos, 122 Burócratas Federales 64380, Monterrey, Nuevo León, Mexico
- Departamento de Ciencias Basicas, Universidad de Monterrey. N.L. Mexico. Av. Ignacio Morones Prieto 4500, San Pedro, Garza García, Nuevo Leon, Mexico
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Yeh MY, Aggarwal S, Carrig M, Azeem A, Nguyen A, Devries S, Destache C, Nguyen T, Velagapudi M. Strongyloides stercoralis Infection in Humans: A Narrative Review of the Most Neglected Parasitic Disease. Cureus 2023; 15:e46908. [PMID: 37954715 PMCID: PMC10639005 DOI: 10.7759/cureus.46908] [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] [Accepted: 10/10/2023] [Indexed: 11/14/2023] Open
Abstract
Strongyloidiasis is a helminth infection affecting 613.9 million people annually, mainly in the tropics and subtropics. The reported seroprevalence in the United States is 4% with most of the cases reported in immigrants. Human T-lympho-tropic virus 1 (HTLV-1) infections, hypogammaglobulinemia, immunosuppressant use - particularly steroid use, alcoholism, and malnutrition have been associated with an increased risk of strongyloidiasis. Recently, cases of strongyloidiasis hyperinfection syndrome have been described in coronavirus disease 2019 (COVID-19) patients treated with steroids as well. This brief review discusses the epidemiology, clinical features, management, and prevention of strongyloidiasis including some facts about the infection in pregnancy, transplant recipients, and COVID-19 patients. We conducted an online search using the PubMed, Scopus, and Google Scholar databases. Strongyloidiasis can be asymptomatic or present with mild symptoms. Strongyloides stercoralis is known to cause autoinfection. In immunocompromised individuals, it can present with severe symptoms, hyperinfection, or disseminated disease. Reported mortality in cases of disseminated Strongyloidiasis is 87.1%. Serology and detection of larvae in stool by direct microscopy are the most commonly used methods to diagnose strongyloidiasis. The drug of choice for the treatment is ivermectin. However, the use of ivermectin in human pregnancy is not well studied, and its teratogenic risks are unknown. Proactive screening of strongyloidiasis is necessary in immunocompromised individuals to prevent severe disease.
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Affiliation(s)
- Mary Y Yeh
- Internal Medicine, Creighton University School of Medicine, Omaha, USA
| | - Sanjana Aggarwal
- Medicine, Hamdard Institute of Medical Sciences and Research, New Delhi, IND
| | - Margaret Carrig
- Internal Medicine, Creighton University School of Medicine, Omaha, USA
| | - Ahad Azeem
- Infectious Diseases, Creighton University School of Medicine, Omaha, USA
| | - Anny Nguyen
- Internal Medicine, Creighton University School of Medicine, Omaha, USA
| | | | - Chris Destache
- Pharmacy Practice, Creighton University School of Pharmacy and Health Professions, Omaha, USA
| | - Toan Nguyen
- Internal Medicine, Houston Methodist Hospital, Houston, USA
| | - Manasa Velagapudi
- Infectious Diseases, Creighton University School of Medicine, Omaha, USA
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Abad CLR, Bhaimia E, Schuetz AN, Razonable RR. A comprehensive review of Strongyloides stercoralis infection after solid organ and hematopoietic stem cell transplantation. Clin Transplant 2022; 36:e14795. [PMID: 35987856 PMCID: PMC10078215 DOI: 10.1111/ctr.14795] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/03/2022] [Accepted: 08/11/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND We reviewed the scientific literature to gain insight on the epidemiology and outcome of Strongyloides stercoralis infections after transplantation. METHODS CINAHL, PUBMED, and OVID/MEDLINE were reviewed from inception through March 31, 2022 using key words Strongyloides and transplantation. RESULTS Our review identified 108 episodes of Strongyloides infection among 91 solid organ transplant (SOT) and 15 hematopoietic cell transplant (HCT) recipients. Median time to infection was 10.8 (range, .14-417) and 8.8 (range, 0-208) weeks after SOT and HCT, respectively. Gastrointestinal symptoms were frequent (86/108 [79.6%]), while skin rash (22/108 [20.3%]) and fever (31/103 [30%]) were less common. Peripheral eosinophilia was observed in half of patients (41/77 [53.2%]). Bacteremia (31/59 [52.5%]) was frequently due to Gram-negative organisms (24/31 [77.4%]). Abnormal chest radiologic findings were reported in half (56/108 [51.9%]). The majority had hyperinfection syndrome (97/108 [89.8%]) while disseminated strongyloidiasis was less common (11/108 [10.2%]). Thirty-two cases were categorized as donor-derived infection (DDI), with donors (23/24 [95.8%]) who had traveled to or lived in endemic areas. Median time to DDI was 8 weeks (range .5-34.3 weeks) after transplantation. Treatment consisted of ivermectin (n = 26), a benzimidazole (n = 27), or both drugs (n = 28). There was high all-cause mortality (48/107, 44.9%) and a high Strongyloides-attributable mortality (32/49, 65.3%). CONCLUSIONS Strongyloidiasis should be strongly considered among recipients with epidemiologic risk factors for infection, even in the absence of eosinophilia or rash. A policy that provides guidance on pro-active screening is needed, to ensure preventive measures are provided to recipients at increased risk.
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Affiliation(s)
- Cybele Lara R Abad
- Department of Medicine, Division of Infectious Diseases, University of the Philippines-Manila, Philippine General Hospital, Manila, Philippines
| | - Eric Bhaimia
- Department of Medicine, Division of Public Health, Infectious Diseases and Occupational Medicine, and The William J Von Liebig Center for Transplantation and Clinical Regeneration, Mayo Clinic College of Medicine and Sciences, Rochester, Minnesota, USA
| | - Audrey N Schuetz
- Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic College of Medicine and Sciences, Rochester, Minnesota, USA
| | - Raymund R Razonable
- Department of Medicine, Division of Public Health, Infectious Diseases and Occupational Medicine, and The William J Von Liebig Center for Transplantation and Clinical Regeneration, Mayo Clinic College of Medicine and Sciences, Rochester, Minnesota, USA
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Li Y, Miao Z, Li P, Zhang R, Kainov DE, Ma Z, de Man RA, Peppelenbosch MP, Pan Q. Ivermectin effectively inhibits hepatitis E virus replication, requiring the host nuclear transport protein importin α1. Arch Virol 2021; 166:2005-2010. [PMID: 33987753 PMCID: PMC8119233 DOI: 10.1007/s00705-021-05096-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 03/24/2021] [Indexed: 01/06/2023]
Abstract
We show that ivermectin, an FDA-approved anti-parasitic drug, effectively inhibits infection with hepatitis E virus (HEV) genotypes 1 and 3 in a range of cell culture models, including hepatic and extrahepatic cells. Long-term treatment showed no clear evidence of the development of drug resistance. Gene silencing of importin-α1, a cellular target of ivermectin and a key member of the host nuclear transport complex, inhibited viral replication and largely abolished the anti-HEV effect of ivermectin.
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Affiliation(s)
- Yunlong Li
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, Room Na-1005, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
| | - Zhijiang Miao
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, Room Na-1005, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
| | - Pengfei Li
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, Room Na-1005, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
| | - Ruyi Zhang
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, Room Na-1005, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
| | - Denis E Kainov
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, 7028, Trondheim, Norway
- Institute of Technology, University of Tartu, 50090, Tartu, Estonia
| | - Zhongren Ma
- Biomedical Research Center, Northwest Minzu University, Lanzhou, China
| | - Robert A de Man
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, Room Na-1005, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
| | - Maikel P Peppelenbosch
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, Room Na-1005, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
| | - Qiuwei Pan
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, Room Na-1005, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands.
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Strongyloides stercoralis Infection in Solid Organ Transplant Recipients: a Case-Cohort Report at a Single-Center Experience. CURRENT TROPICAL MEDICINE REPORTS 2019. [DOI: 10.1007/s40475-019-00185-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Fabiani S, Fortunato S, Bruschi F. Solid Organ Transplant and Parasitic Diseases: A Review of the Clinical Cases in the Last Two Decades. Pathogens 2018; 7:pathogens7030065. [PMID: 30065220 PMCID: PMC6160964 DOI: 10.3390/pathogens7030065] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 07/17/2018] [Accepted: 07/18/2018] [Indexed: 12/18/2022] Open
Abstract
The aim of this study was to evaluate the occurrence of parasitic infections in solid organ transplant (SOT) recipients. We conducted a systematic review of literature records on post-transplant parasitic infections, published from 1996 to 2016 and available on PubMed database, focusing only on parasitic infections acquired after SOT. The methods and findings of the present review have been presented based on the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) checklist. From data published in the literature, the real burden of parasitic infections among SOT recipients cannot really be estimated. Nevertheless, publications on the matter are on the increase, probably due to more than one reason: (i) the increasing number of patients transplanted and then treated with immunosuppressive agents; (ii) the “population shift” resulting from immigration and travels to endemic areas, and (iii) the increased attention directed to diagnosis/notification/publication of cases. Considering parasitic infections as emerging and potentially serious in their evolution, additional strategies for the prevention, careful screening and follow-up, with a high level of awareness, identification, and pre-emptive therapy are needed in transplant recipients.
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Affiliation(s)
- Silvia Fabiani
- Infectious Disease Department, Azienda Ospedaliera Pisana, 56124 Pisa, Italy.
- School of Infectious Diseases, Università di Pisa, 56124 Pisa, Italy.
| | - Simona Fortunato
- School of Infectious Diseases, Università di Pisa, 56124 Pisa, Italy.
| | - Fabrizio Bruschi
- School of Infectious Diseases, Università di Pisa, 56124 Pisa, Italy.
- Department of Translational Research, N.T.M.S., Università di Pisa, 56124 Pisa, Italy.
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Beknazarova M, Whiley H, Ross K. Advocating for both Environmental and Clinical Approaches to Control Human Strongyloidiasis. Pathogens 2016; 5:E59. [PMID: 27706031 PMCID: PMC5198159 DOI: 10.3390/pathogens5040059] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 09/25/2016] [Accepted: 09/28/2016] [Indexed: 11/16/2022] Open
Abstract
Strongyloidiasis is an underestimated disease caused by the soil-transmitted parasite of the genus Strongyloides. It is prevalent in socioeconomically disadvantaged communities and it is estimated that global infection could be as high as 370 million people. This paper explores current methods of strongyloidiasis treatment, which rely on administration of anthelminthic drugs. However these drugs cannot prevent reinfection and drug resistance has already been observed in veterinary models. This highlights the need for a combined approach for controlling Strongyloides that includes both clinical treatment and environmental control methods. Currently, nematicides are widely used to control plant parasites. The review suggests that due to the species' similarity and similar modes of action, these nematicides could also be used to control animal and human parasitic nematodes in the environment.
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Affiliation(s)
- Meruyert Beknazarova
- School of the Environment, Flinders University, GPO Box 2100, Adelaide 5001, Australia.
| | - Harriet Whiley
- School of the Environment, Flinders University, GPO Box 2100, Adelaide 5001, Australia.
| | - Kirstin Ross
- School of the Environment, Flinders University, GPO Box 2100, Adelaide 5001, Australia.
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Beknazarova M, Whiley H, Ross K. Strongyloidiasis: A Disease of Socioeconomic Disadvantage. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:E517. [PMID: 27213420 PMCID: PMC4881142 DOI: 10.3390/ijerph13050517] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 05/18/2016] [Accepted: 05/18/2016] [Indexed: 12/17/2022]
Abstract
Strongyloidiasis is a disease caused by soil transmitted helminths of the Strongyloides genus. Currently, it is predominately described as a neglected tropical disease. However, this description is misleading as it focuses on the geographical location of the disease and not the primary consideration, which is the socioeconomic conditions and poor infrastructure found within endemic regions. This classification may result in misdiagnosis and mistreatment by physicians, but more importantly, it influences how the disease is fundamentally viewed. Strongyloidiasis must be first and foremost considered as a disease of disadvantage, to ensure the correct strategies and control measures are used to prevent infection. Changing how strongyloidiasis is perceived from a geographic and clinical issue to an environmental health issue represents the first step in identifying appropriate long term control measures. This includes emphasis on environmental health controls, such as better infrastructure, sanitation and living conditions. This review explores the global prevalence of strongyloidiasis in relation to its presence in subtropical, tropical and temperate climate zones with mild and cold winters, but also explores the corresponding socioeconomic conditions of these regions. The evidence shows that strongyloidiasis is primarily determined by the socioeconomic status of the communities rather than geographic or climatic conditions. It demonstrates that strongyloidiasis should no longer be referred to as a "tropical" disease but rather a disease of disadvantage. This philosophical shift will promote the development of correct control strategies for preventing this disease of disadvantage.
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Affiliation(s)
- Meruyert Beknazarova
- School of the Environment, Flinders University, GPO Box 2100, Adelaide 5001, Australia.
| | - Harriet Whiley
- School of the Environment, Flinders University, GPO Box 2100, Adelaide 5001, Australia.
| | - Kirstin Ross
- School of the Environment, Flinders University, GPO Box 2100, Adelaide 5001, Australia.
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Abstract
The majority of the 30-100 million people infected with Strongyloides stercoralis, a soil transmitted intestinal nematode, have subclinical (or asymptomatic) infections. These infections are commonly chronic and longstanding because of the autoinfective process associated with its unique life cycle. A change in immune status can increase parasite numbers, leading to hyperinfection syndrome, dissemination, and death if unrecognized. Corticosteroid use and HTLV-1 infection are most commonly associated with the hyperinfection syndrome. Strongyloides adult parasites reside in the small intestine and induce immune responses both local and systemic that remain poorly characterized. Definitive diagnosis of S. stercoralis infection is based on stool examinations for larvae, but newer diagnostics - including new immunoassays and molecular tests - will assume primacy in the next few years. Although good treatment options exist for infection and control of this infection might be possible, S. stercoralis remains largely neglected.
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Teixeira MCA, Pacheco FTF, Souza JN, Silva MLS, Inês EJ, Soares NM. Strongyloides stercoralis Infection in Alcoholic Patients. BIOMED RESEARCH INTERNATIONAL 2016; 2016:4872473. [PMID: 28105424 PMCID: PMC5220430 DOI: 10.1155/2016/4872473] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 11/13/2016] [Indexed: 12/28/2022]
Abstract
The course of Strongyloides stercoralis infection is usually asymptomatic with a low discharge of rhabditoid larva in feces. However, the deleterious effects of alcohol consumption seem to enhance the susceptibility to infection, as shown by a fivefold higher strongyloidiasis frequency in alcoholics than in nonalcoholics. Moreover, the association between S. stercoralis infection and alcoholism presents a risk for hyperinfection and severe strongyloidiasis. There are several possible mechanisms for the disruption of the host-parasite equilibrium in ethanol-addicted patients with chronic strongyloidiasis. One explanation is that chronic ethanol intake stimulates the hypothalamic-pituitary-adrenal (HPA) axis to produce excessive levels of endogenous cortisol, which in turn can lead to a deficiency in type 2 T helper cells (Th2) protective response, and also to mimic the parasite hormone ecdysone, which promotes the transformation of rhabditiform larvae to filariform larvae, leading to autoinfection. Therefore, when untreated, alcoholic patients are continuously infected by this autoinfection mechanism. Thus, the early diagnosis of strongyloidiasis and treatment can prevent serious forms of hyperinfection in ethanol abusers.
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Affiliation(s)
- Marcia C. A. Teixeira
- Faculdade de Farmácia, Universidade Federal da Bahia, 40170115 Salvador, BA, Brazil
- *Marcia C. A. Teixeira:
| | - Flavia T. F. Pacheco
- Faculdade de Farmácia, Universidade Federal da Bahia, 40170115 Salvador, BA, Brazil
| | - Joelma N. Souza
- Faculdade de Farmácia, Universidade Federal da Bahia, 40170115 Salvador, BA, Brazil
| | - Mônica L. S. Silva
- Faculdade de Farmácia, Universidade Federal da Bahia, 40170115 Salvador, BA, Brazil
| | - Elizabete J. Inês
- Faculdade de Farmácia, Universidade Federal da Bahia, 40170115 Salvador, BA, Brazil
| | - Neci M. Soares
- Faculdade de Farmácia, Universidade Federal da Bahia, 40170115 Salvador, BA, Brazil
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Barrett J, Broderick C, Soulsby H, Wade P, Newsholme W. Subcutaneous ivermectin use in the treatment of severe Strongyloides stercoralis infection: two case reports and a discussion of the literature. J Antimicrob Chemother 2016; 71:220-5. [PMID: 26462990 DOI: 10.1093/jac/dkv315] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 09/02/2015] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Strongyloides stercoralis infection presents with varying degrees of severity, but it often primarily involves the small bowel. In severe infection and cases of hyperinfection, ileus and small-bowel obstruction may prevent enteral absorption of anthelminthics such as ivermectin. At present there are no parenteral anthelminthics licensed for use in humans. METHODS Here, we describe two cases of severe S. stercoralis infection treated with an unlicensed veterinary preparation of subcutaneous ivermectin, and we discuss the published reports of the use of this treatment elsewhere. RESULTS Both patients were successfully treated with subcutaneous ivermectin, and both recovered completely. CONCLUSIONS Despite the limited published experience of parenteral ivermectin use, there is evidence that it may be a safe and effective treatment for severe strongyloidiasis. However, more data are needed to guide dosing schedules and monitoring for toxicity.
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Affiliation(s)
- Jessica Barrett
- Department of Infectious Diseases, Guy's and St Thomas' NHS Foundation Trust, St Thomas' Hospital, Westminster Bridge Road, London SE1 7EH, UK
| | - Claire Broderick
- Department of Infectious Diseases, University College Hospital, 235 Euston Road, London NW1 2BU, UK
| | - Hannah Soulsby
- Department of Infectious Diseases, Guy's and St Thomas' NHS Foundation Trust, St Thomas' Hospital, Westminster Bridge Road, London SE1 7EH, UK
| | - Paul Wade
- Department of Infectious Diseases, Guy's and St Thomas' NHS Foundation Trust, St Thomas' Hospital, Westminster Bridge Road, London SE1 7EH, UK
| | - William Newsholme
- Department of Infectious Diseases, Guy's and St Thomas' NHS Foundation Trust, St Thomas' Hospital, Westminster Bridge Road, London SE1 7EH, UK
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Strongyloides stercoralis hyperinfection syndrome: a case series and a review of the literature. Infection 2015; 43:691-8. [PMID: 26008854 DOI: 10.1007/s15010-015-0799-1] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Accepted: 05/15/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Strongyloides stercoralis may lead to overwhelming infestation [Strongyloides hyperinfection syndrome (SHS)]. We aimed at describing a case series of patients admitted in intensive care unit (ICU) with SHS and report a literature review of such cases. PATIENTS AND METHODS Retrospective multicenter study of 11 patients admitted to the ICU of tertiary hospitals with SHS between 2000 and 2013. Literature review with Pubmed retrieved 122 cases. Logistic regression analysis was performed to identify predictive factors of ICU mortality and shock occurrence. RESULTS 133 patients [median age 53 (39, 64), 72.2 % males] were included. Underlying immunosuppression was present in 127 patients, mostly long-term corticosteroid treatment in 111 (83.5 %) patients. Fever (80.8 %), respiratory (88.6 %), and gastrointestinal (71.2 %) symptoms were common clinical manifestations. Shock occurred in 75 (57.3 %) patients and mechanical ventilation was required in 89 (67.9 %) patients. Hypereosinophilia and a concomitant bacterial infection were observed in 34 (34.3 %) and 51 (38.4 %) patients, respectively. The in-ICU mortality rate was 60.3 %. Predictive factors of ICU mortality were shock occurrence [Odds ratio (OR) 18.1, 95 % confidence interval (95 % CI) 3.03-107.6, p < 0.01] and mechanical ventilation (OR 28.1, 95 % CI 3.6-217, p < 0.01). Hypereosinophilia (OR 0.21, 95 % CI 0.06-0.7, p = 0.01) and a concomitant bacterial infection (OR 4.68, 95 % CI 1.3-16.8, p = 0.02) were independent predictors of shock occurrence. CONCLUSION SHS remains associated with a poor outcome, especially when associated with shock and mechanical ventilation. Deterioration to shock is often related to concomitant bacterial infection. The poor outcome of established SHS pleads for a large application of antiparasitic primary prophylaxis in at-risk patients.
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Bogoch II, Khan K, Abrams H, Nott C, Leung E, Fleckenstein L, Keystone JS. Failure of ivermectin per rectum to achieve clinically meaningful serum levels in two cases of Strongyloides hyperinfection. Am J Trop Med Hyg 2015; 93:94-6. [PMID: 25918215 DOI: 10.4269/ajtmh.15-0077] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 03/11/2015] [Indexed: 11/07/2022] Open
Abstract
Two cases of Strongyloides hyperinfection are presented. Ivermectin was initially administered orally and per rectum pending the availability of subcutaneous (SC) preparations. In neither case did rectal suppositories of ivermectin achieve clinically meaningful serum values. Clinicians should use SC preparations of ivermectin as early as possible in Strongyloides hyperinfection and dissemination.
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Affiliation(s)
- Isaac I Bogoch
- Division of General Internal Medicine, University Health Network, Toronto, Canada; Division of Infectious Diseases, University Health Network, Toronto, Canada; Department of Medicine, University of Toronto, Toronto, Canada; Division of Infectious Diseases, St. Michael's Hospital, Toronto, Canada; Department of Pharmacy, St. Michael's Hospital, Toronto, Canada; Division of Pharmaceutics and Translational Therapeutics, University of Iowa, Iowa City, Iowa
| | - Kamran Khan
- Division of General Internal Medicine, University Health Network, Toronto, Canada; Division of Infectious Diseases, University Health Network, Toronto, Canada; Department of Medicine, University of Toronto, Toronto, Canada; Division of Infectious Diseases, St. Michael's Hospital, Toronto, Canada; Department of Pharmacy, St. Michael's Hospital, Toronto, Canada; Division of Pharmaceutics and Translational Therapeutics, University of Iowa, Iowa City, Iowa
| | - Howard Abrams
- Division of General Internal Medicine, University Health Network, Toronto, Canada; Division of Infectious Diseases, University Health Network, Toronto, Canada; Department of Medicine, University of Toronto, Toronto, Canada; Division of Infectious Diseases, St. Michael's Hospital, Toronto, Canada; Department of Pharmacy, St. Michael's Hospital, Toronto, Canada; Division of Pharmaceutics and Translational Therapeutics, University of Iowa, Iowa City, Iowa
| | - Caroline Nott
- Division of General Internal Medicine, University Health Network, Toronto, Canada; Division of Infectious Diseases, University Health Network, Toronto, Canada; Department of Medicine, University of Toronto, Toronto, Canada; Division of Infectious Diseases, St. Michael's Hospital, Toronto, Canada; Department of Pharmacy, St. Michael's Hospital, Toronto, Canada; Division of Pharmaceutics and Translational Therapeutics, University of Iowa, Iowa City, Iowa
| | - Elizabeth Leung
- Division of General Internal Medicine, University Health Network, Toronto, Canada; Division of Infectious Diseases, University Health Network, Toronto, Canada; Department of Medicine, University of Toronto, Toronto, Canada; Division of Infectious Diseases, St. Michael's Hospital, Toronto, Canada; Department of Pharmacy, St. Michael's Hospital, Toronto, Canada; Division of Pharmaceutics and Translational Therapeutics, University of Iowa, Iowa City, Iowa
| | - Lawrence Fleckenstein
- Division of General Internal Medicine, University Health Network, Toronto, Canada; Division of Infectious Diseases, University Health Network, Toronto, Canada; Department of Medicine, University of Toronto, Toronto, Canada; Division of Infectious Diseases, St. Michael's Hospital, Toronto, Canada; Department of Pharmacy, St. Michael's Hospital, Toronto, Canada; Division of Pharmaceutics and Translational Therapeutics, University of Iowa, Iowa City, Iowa
| | - Jay S Keystone
- Division of General Internal Medicine, University Health Network, Toronto, Canada; Division of Infectious Diseases, University Health Network, Toronto, Canada; Department of Medicine, University of Toronto, Toronto, Canada; Division of Infectious Diseases, St. Michael's Hospital, Toronto, Canada; Department of Pharmacy, St. Michael's Hospital, Toronto, Canada; Division of Pharmaceutics and Translational Therapeutics, University of Iowa, Iowa City, Iowa
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Mordal GCE, Parker K, Namtvedt T. [A kidney transplant lymphoma patient starts coughing]. TIDSSKRIFT FOR DEN NORSKE LEGEFORENING 2014; 134:627-30. [PMID: 24670512 DOI: 10.4045/tidsskr.13.0516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Donadello K, Cristallini S, Taccone FS, Lorent S, Vincent JL, de Backer D, Jacobs F. Strongyloides disseminated infection successfully treated with parenteral ivermectin: case report with drug concentration measurements and review of the literature. Int J Antimicrob Agents 2013; 42:580-3. [DOI: 10.1016/j.ijantimicag.2013.07.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 07/25/2013] [Accepted: 07/29/2013] [Indexed: 10/26/2022]
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Buonfrate D, Requena-Mendez A, Angheben A, Muñoz J, Gobbi F, Van Den Ende J, Bisoffi Z. Severe strongyloidiasis: a systematic review of case reports. BMC Infect Dis 2013; 13:78. [PMID: 23394259 PMCID: PMC3598958 DOI: 10.1186/1471-2334-13-78] [Citation(s) in RCA: 231] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Accepted: 01/19/2013] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Strongyloidiasis is commonly a clinically unapparent, chronic infection, but immuno suppressed subjects can develop fatal disease. We carried out a review of literature on hyperinfection syndrome (HS) and disseminated strongyloidiasis (DS), in order to describe the most challenging aspects of severe strongyloidiasis. METHODS We conducted a structured search using PubMed to collect case reports and short case series on HS/DS published from 1991 to 2011. We restricted search to papers in English, Spanish, Italian and French. Case reports were classified as HS/DS according to given definitions. RESULTS Records screened were 821, and 311 were excluded through titles and abstract evaluation. Of 510 full-text articles assessed for eligibility, 213 were included in qualitative analysis. As some of them were short case series, eventually the number of cases analyzed was 244.Steroids represented the main trigger predisposing to HS and DS (67% cases): they were mostly administered to treat underlying conditions (e.g. lymphomas, rheumatic diseases). However, sometimes steroids were empirically prescribed to treat signs and symptoms caused by unsuspected/unrecognized strongyloidiasis. Diagnosis was obtained by microscopy examination in 100% cases, while serology was done in a few cases (6.5%). Only in 3/29 cases of solid organ/bone marrow transplantation there is mention of pre-transplant serological screening. Therapeutic regimens were different in terms of drugs selection and combination, administration route and duration. Similar fatality rate was observed between patients with DS (68.5%) and HS (60%). CONCLUSIONS Proper screening (which must include serology) is mandatory in high - risk patients, for instance candidates to immunosuppressive medications, currently or previously living in endemic countries. In some cases, presumptive treatment might be justified. Ivermectin is the gold standard for treatment, although the optimal dosage is not clearly defined in case of HS/DS.
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Affiliation(s)
- Dora Buonfrate
- Centre for Tropical Diseases (CTD), Sacro Cuore Hospital, Negrar, Verona, Italy
| | - Ana Requena-Mendez
- Barcelona Centre for International Health Research (CRESIB) Hospital Clinic, Barcelona, Spain
| | - Andrea Angheben
- Centre for Tropical Diseases (CTD), Sacro Cuore Hospital, Negrar, Verona, Italy
| | - Jose Muñoz
- Barcelona Centre for International Health Research (CRESIB) Hospital Clinic, Barcelona, Spain
| | - Federico Gobbi
- Centre for Tropical Diseases (CTD), Sacro Cuore Hospital, Negrar, Verona, Italy
| | - Jef Van Den Ende
- Department of Clinical sciences, Institute of Tropical Medicine, Antwerp, Belgium
| | - Zeno Bisoffi
- Centre for Tropical Diseases (CTD), Sacro Cuore Hospital, Negrar, Verona, Italy
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Mejia R, Nutman TB. Screening, prevention, and treatment for hyperinfection syndrome and disseminated infections caused by Strongyloides stercoralis. Curr Opin Infect Dis 2012; 25:458-63. [PMID: 22691685 PMCID: PMC3430846 DOI: 10.1097/qco.0b013e3283551dbd] [Citation(s) in RCA: 214] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE OF REVIEW This review discusses the latest approaches to the diagnosis and treatment of patients with strongyloidiasis, with an emphasis on infection in the immunocompromised host and the risk for disseminated strongyloidiasis. RECENT FINDINGS The differences in acute, chronic, accelerated autoinfection, and disseminated disease in Strongyloides stercoralis infection are explored with particular emphasis on early diagnosis, treatment, and prevention. The goals of treatment are investigated for the different infection states. Predisposing risks for dissemination are delineated, and the roles played for newer diagnostics in the identification of at-risk individuals are detailed. SUMMARY The use of newer diagnostic tests and broader screening of immunocompromised patients from Strongyloides-endemic areas is of paramount importance, particularly if prevention of life-threatening dissemination is the goal.
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Affiliation(s)
- Rojelio Mejia
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892-0425, USA
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Donor-Derived Strongyloides stercoralis Infections in Renal Transplant Recipients. Transplantation 2011; 91:1019-24. [DOI: 10.1097/tp.0b013e3182115b7b] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
PURPOSE OF REVIEW Diagnosis of Strongyloides stercoralis is often delayed owing to patients presenting with nonspecific gastrointestinal complaints, a low parasite load and irregular larval output. Although several diagnostic methods exist to detect the presence of S. stercoralis there is no gold standard. In immunocompromised hosts (patients with malignancy, organ transplantation or concurrent human T-cell-lymphocytic virus 1 infection or those on corticosteroid therapy), autoinfection can go unchecked with large numbers of invasive Strongyloides larvae disseminating widely and causing hyperinfection with dissemination, which can be fatal. This review will highlight current published research on improved diagnostic methods for S. stercoralis and the immune mechanisms thought to be responsible for hyperinfection syndrome. RECENT FINDINGS Recent advances in diagnosis of S. stercoralis include a luciferase immunoprecipitation system that shows increased sensitivity and specificity to detect S. stercoralis-specific antibodies and a real-time quantitative PCR method to detect S. stercoralis in fecal samples. The severe clinical manifestations of S. stercoralis observed in human T-cell-lymphocytic virus 1 coinfected patients has been associated with an increased proportion of regulatory T cells that may be responsible for blunting otherwise effective granulocyte responses. SUMMARY Strongyloidiasis is a major global health challenge that is underestimated in many countries. Novel diagnostic methods are expected to improve epidemiological studies and control efforts for prevention and treatment of strongyloidiasis. More studies are needed to unveil the mechanisms of severe clinical manifestations of human strongyloidiasis.
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Fusco DN, Downs JA, Satlin MJ, Pahuja M, Ramos L, Barie PS, Fleckenstein L, Murray HW. Non-oral treatment with ivermectin for disseminated strongyloidiasis. Am J Trop Med Hyg 2010; 83:879-83. [PMID: 20889884 DOI: 10.4269/ajtmh.2010.10-0258] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Critically ill patients with disseminated strongyloidiasis may not be candidates for oral treatment. We report four patients with disseminated strongyloidiasis, believed to be unable to absorb oral therapy, who were treated with ivermectin by rectal and/or subcutaneous administration. Obtaining subcutaneous ivermectin and dosing it appropriately is a challenge. These cases underscore the need for improved access to subcutaneous ivermectin and more pharmacological data to guide use of this treatment approach.
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Affiliation(s)
- Dahlene N Fusco
- Division of Infectious Diseases, and Department of Surgery, Weill Cornell Medical College, New York-Presbyterian Hospital, New York, New York, USA.
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Cruz RJ, Vincenzi R, Ketzer BM. Duodenal obstruction - an unusual presentation of Strongyloides stercoralis enteritis: a case report. World J Emerg Surg 2010; 5:23. [PMID: 20698992 PMCID: PMC2925357 DOI: 10.1186/1749-7922-5-23] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2010] [Accepted: 08/10/2010] [Indexed: 11/27/2022] Open
Abstract
Background Intestinal obstruction is a poorly recognized and probably underreported complication of strongyloidiasis. We present herein an unusual case, of complete duodenal obstruction caused by S. stercoralis. Methods A systematic review of the literature examining the clinical course, diagnostic methods, and outcome of this rare complication of strongyloidiasis was performed. Results A 42-year-old woman presented with a 5-month history of abdominal pain, vomit, and weight loss. An abdominal CT scan showed an obstruction of the third part of the duodenum. Segmental intestinal resection was carried out and histopathology examination revealed heavy Strongyloides stercoralis infestation. Duodenal obstruction is a rare complication of S. stercoralis infection, with only 8 cases described in the literature since 1970. Most of the patients are males, middle-aged, and the diagnosis was made by duodenal aspirate/biopsy, or analysis of surgical specimen. Conclusions Duodenal obstruction is an unusual, but potential fatal, complication of S. stercoralis infection. The large spectrum of clinical manifestation and lack of classic clinical syndrome make the final diagnosis of strongyloidiasis extremely difficult. A high index of suspicion, mainly in patients from endemic areas, is needed for correct and early diagnosis of this uncommon presentation of Strogyloides stercoralis enteritis.
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Affiliation(s)
- Ruy J Cruz
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
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Abstract
Parasitic infections are an uncommon but potentially severe complication in solid organ transplant (SOT) recipients. An increase in donors who have emigrated from tropical areas and more transplant recipients traveling to endemic areas have led to a rise in parasitic infections reported among SOT recipients. Clinicians should include these infections in their differential diagnosis and promote adherence to preventive measures in SOT recipients.
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Morris MI, Fischer SA, Ison MG. Infections Transmitted by Transplantation. Infect Dis Clin North Am 2010; 24:497-514. [DOI: 10.1016/j.idc.2010.02.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Sen S, Dawwas M, Nash K, Gimson A. Uncomplicated strongyloidiasis in a liver transplant recipient on steroid-free immunosuppression. Transpl Infect Dis 2010; 12:184-5. [DOI: 10.1111/j.1399-3062.2009.00462.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
Strongyloides stercoralis is an intestinal nematode that can persist in the human host for decades after the initial infection and can progress to fulminant hyperinfection syndrome in immunocompromised hosts. We describe a patient who died of Strongyloides hyperinfection syndrome 2 months after orthotopic heart transplantation and discuss approaches to prevention, diagnosis, and treatment. Current practice guidelines recommend screening for and treatment of Strongyloides infection before transplantation, but physicians in the United States often miss opportunities to identify patients with chronic strongyloidiasis. Screening tests have limitations, and clinical suspicion remains an important component of the evaluation before transplantation. After immunocompromised patients develop hyperinfection syndrome, diagnosis is often delayed and mortality is high, so emphasis must be placed on screening and treatment before transplantation. We review current strategies for prevention, diagnosis, and treatment of chronic intestinal strongyloidiasis in patients who will undergo transplantation and discuss the clinical features and management of Strongyloides hyperinfection syndrome in transplant recipients.
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Affiliation(s)
- Alison C Roxby
- Division of Allergy and Infectious Diseases, University of Washington, Seattle, USA
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Marty FM. Strongyloides hyperinfection syndrome and transplantation: a preventable, frequently fatal infection. Transpl Infect Dis 2009; 11:97-9. [PMID: 19400809 DOI: 10.1111/j.1399-3062.2009.00383.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Huston JM, Eachempati SR, Rodney JR, Cayci C, Fusco D, Mathew M, Shou J, Goldstein MJ, Kapur S, Barie PS. Treatment of Strongyloides stercoralis hyperinfection-associated septic shock and acute respiratory distress syndrome with drotrecogin alfa (activated) in a renal transplant recipient. Transpl Infect Dis 2009; 11:277-80. [PMID: 19392733 DOI: 10.1111/j.1399-3062.2009.00386.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report a case of Strongyloides stercoralis hyperinfection syndrome in a renal transplant recipient complicated by septic shock, acute respiratory distress syndrome, and Klebsiella pneumoniae superinfection. The patient was treated successfully with drotrecogin alfa (activated), parenteral ivermectin, albendazole, and piperacillin/tazobactam. This outcome suggests that drotrecogin alfa (activated) may be useful therapy for transplant recipients who develop severe sepsis or septic shock secondary to potentially lethal opportunistic infections.
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Affiliation(s)
- J M Huston
- Department of Surgery, Division of Critical Care and Trauma, New York Presbyterian Hospital, Weill Cornell Medical College, New York, New York 10065, USA
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