invasive fungal infection

侵袭性真菌感染
  • 文章类型: Journal Article
    2019年冠状病毒病(COVID-19)相关的肺曲霉病(CAPA)是一种威胁生命的真菌感染。针对低收入和中等收入国家CAPA的研究有限。
    这项回顾性配对病例对照研究是在印度南部的三级护理中心进行的。使用2020年欧洲医学真菌学联合会/国际人类和动物真菌学学会共识标准对CAPA病例进行分类。共有95例患者与无CAPA的COVID-19患者1:1匹配。根据年龄和入院时间进行匹配。反向概率加权用于解释COVID-19严重程度和重症监护病房(ICU)入院的不平衡。人口统计数据,临床细节,微生物和放射学数据,并收集治疗结果.根据基线风险因素制定CAPA的预测评分。
    预测评分确定淋巴细胞减少,欧洲癌症危险因素研究和治疗组织,广谱抗生素的使用是CAPA的主要危险因素。血液或支气管肺泡灌洗样品中细菌病原体的阳性降低了CAPA的风险。预测模型在交叉验证中表现良好,曲线下面积值为82%。CAPA诊断显着增加死亡率和转移到ICU。
    从当前研究中得出的预测模型为临床医生提供了有价值的工具,特别是在高流行的低收入和中等收入国家,用于CAPA的早期识别和治疗。经过进一步验证,这种风险评分可以改善患者的预后.
    UNASSIGNED: Coronavirus disease 2019 (COVID-19)-associated pulmonary aspergillosis (CAPA) is a life-threatening fungal infection. Studies focusing on CAPA in low- and middle-income countries are limited.
    UNASSIGNED: This retrospective matched case-control study was conducted at a tertiary care center in South India. Cases of CAPA were classified using the 2020 European Confederation of Medical Mycology/International Society for Human and Animal Mycology consensus criteria. A total of 95 cases were matched 1:1 with COVID-19 patients without CAPA. Matching was done based on age and period of admission. Inverse probability weighting was used to account for imbalances in COVID-19 severity and intensive care unit (ICU) admission. Data on demographics, clinical details, microbiologic and radiologic data, and treatment outcomes were collected. A predictive score for CAPA was developed from baseline risk factors.
    UNASSIGNED: The predictive score identified lymphopenia, European Organisation for Research and Treatment of Cancer risk factors, and broad-spectrum antibiotic use as the main risk factors for CAPA. Positivity for bacterial pathogens in blood or bronchoalveolar lavage samples reduced the risk of CAPA. The predictive model performed well in cross-validation, with an area under the curve value of 82%. CAPA diagnosis significantly increased mortality and shift to ICU.
    UNASSIGNED: The predictive model derived from the current study offers a valuable tool for clinicians, especially in high-endemic low- and middle-income countries, for the early identification and treatment of CAPA. With further validation, this risk score could improve patient outcomes.
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  • 文章类型: Case Reports
    犀牛-眶-脑毛霉菌病(ROCM)是一种罕见的血管侵袭性真菌感染,已知与高发病率和超过50%的死亡率有关。由于易感的免疫损害合并症和COVID-19的增加,ROCM变得越来越普遍。
    我们报告2例——一名75岁女性患有糖尿病和一名39岁男性复发性糖尿病酮症酸中毒。两者最初都有急性鼻窦症状,SARS-CoV-2阳性,诊断为急性ROCM。两者都接受了残缺的手术治疗以及大剂量的两性霉素B治疗。继续口服抗真菌药物治疗,患者1表现出稳定的症状,尽管影像学表现为病情加重,并在首次手术后5个月死于尿脓毒症.用泊沙康唑治疗,患者2从疾病中康复,1年后无疾病进展的临床迹象.
    尽管这种疾病很少见,如果临床和放射学检查的结果适合,则应考虑ROCM,这样可以避免治疗开始的延迟。正如我们的两个案例所示,从ROCM生存是可能的-尽管成本很高。
    UNASSIGNED: Rhino-orbital-cerebral mucormycosis (ROCM) is a rare angioinvasive fungal infection known to be associated with high morbidity and over 50% mortality. ROCM is becoming more common due to an increase in predisposing immunocompromising comorbidities as well as COVID-19.
    UNASSIGNED: We report 2 cases - a 75-year-old woman with diabetes and a 39-year-old man with recurrent diabetic ketoacidosis. Both presented initially with acute sinonasal symptoms, were positive for SARS-CoV-2, and diagnosed with acute ROCM. Both underwent mutilating surgical therapy as well as high-dose amphotericin B treatment. With continued oral antifungal treatment, patient 1 showed stable symptoms despite radiographically increasing disease and died of urosepsis 5 months after first surgery. With posaconazole treatment, patient 2 recovered from the disease and showed no clinical sign of disease progression after 1 year.
    UNASSIGNED: Despite the rarity of the disease, ROCM should be considered if the findings of clinical and radiological examination fit, so that a delay in treatment initiation can be avoided. As our both cases show, survival from ROCM is possible - albeit at a high cost.
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  • 文章类型: Journal Article
    鲁索替尼,Janus激酶的选择性抑制剂,是中/高危骨髓纤维化(MF)的标准治疗方法,但与机会性感染的易感性有关,尤其是带状疱疹.然而,这些患者中侵袭性真菌感染(IFIs)的发生率和特征仍不确定.在这份报告中,我们介绍了一例59岁的MF患者,该患者在使用ruxolitinib治疗7个月后出现了播散性组织胞浆菌病.患者在接受两性霉素B和唑类药物联合治疗十周后临床好转,和鲁索利替尼停药.稍后,患者接受了费司替尼,一种相对选择性JAK2的抑制剂,无组织胞浆菌病复发。我们还回顾了有关接受鲁索利替尼的MF患者中已证实的IFIs病例的文献。包括我们的,我们确定了28个这样的案例,最常见的原因是隐球菌(46%)。国际金融机构最常传播(39%),其次是局部肺部(21%)感染。虽然不常见,接受JAK抑制剂的患者需要高度怀疑机会性IFIs.此外,关于JAK抑制剂治疗患者的IFIs最佳管理的数据不足,强调需要精心设计的研究来评估流行病学,病理生物学,早期诊断,以及接受靶向治疗的血液系统恶性肿瘤患者的IFIs的多模式治疗。
    Ruxolitinib, a selective inhibitor of Janus kinases, is a standard treatment for intermediate/high-risk myelofibrosis (MF) but is associated with a predisposition to opportunistic infections, especially herpes zoster. However, the incidence and characteristics of invasive fungal infections (IFIs) in these patients remain uncertain. In this report, we present the case of a 59-year-old woman with MF who developed disseminated histoplasmosis after seven months of ruxolitinib use. The patient clinically improved after ten weeks of combined amphotericin B and azole therapy, and ruxolitinib was discontinued. Later, the patient received fedratinib, a relatively JAK2-selective inhibitor, without relapse of histoplasmosis. We also reviewed the literature on published cases of proven IFIs in patients with MF who received ruxolitinib. Including ours, we identified 28 such cases, most commonly due to Cryptococcus species (46%). IFIs were most commonly disseminated (39%), followed by localized lung (21%) infections. Although uncommon, a high index of suspicion for opportunistic IFIs is needed in patients receiving JAK inhibitors. Furthermore, the paucity of data regarding the optimal management of IFIs in patients treated with JAK inhibitors underscore the need for well-designed studies to evaluate the epidemiology, pathobiology, early diagnosis, and multimodal therapy of IFIs in patients with hematological malignancies receiving targeted therapies.
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  • 文章类型: Case Reports
    伊布替尼的使用,布鲁顿酪氨酸激酶抑制剂,与侵袭性真菌感染(IFIs)有关。我们描述了一例与长期使用依鲁替尼治疗慢性淋巴细胞白血病相关的Apophysomyces感染病例,并对依鲁替尼治疗患者的毛霉菌病感染进行了文献综述。我们的综述发现,在开始使用酪氨酸激酶抑制剂的几个月到几年内,会发生有助于减轻人的感染。这些报告提供了更完整的图像,说明患者服用伊布替尼时的风险。我们的案例还证明了分子技术在诊断国际金融机构中的实用性,因为诊断是使用28SrDNA/内部转录间隔区PCR进行的。
    The use of ibrutinib, a Bruton tyrosine kinase inhibitor, has been associated with invasive fungal infections (IFIs). We describe a case of Apophysomyces infection associated with long-term use of ibrutinib for the treatment of chronic lymphocytic leukemia as well as perform a literature review of Mucormycosis infections in patients on ibrutinib. Our review found that the onset of IFI can occur within months to years of starting tyrosine kinase inhibitors. These reports provide a more complete picture of the risk of IFI while patients are on ibrutinib. Our case also demonstrates the utility of molecular techniques in the diagnosis of IFI, as the diagnosis was made using 28S rDNA/internal transcribed spacer PCR.
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  • 文章类型: Case Reports
    Muyocopronlateral是一种寄生于单子叶植物的内生真菌。人类和其他哺乳动物感染M.laterale的病例在世界范围内非常罕见。我们报告了中国首例由后耳支原体引起的皮下真菌病。一名肾移植受者因卡氏肺孢子虫肺炎入院,随后由于M.laterale感染而出现左小腿红肿。患者接受了磺胺甲恶唑和伏立康唑治疗,并对左腿进行了五次手术清创和负压封闭引流(VSD)应用。患者最终治愈并出院。
    Muyocopron laterale is a type of endophytic fungus that parasitizes monocotyledonous plants. Cases of humans and other mammals being infected by M. laterale are very rare around the world. We report the first case of subcutaneous mycosis caused by M. laterale in China. A kidney transplant recipient was admitted for Pneumocystis carinii pneumonia and subsequently developed left calf redness and swelling due to a M. laterale infection. The patient was treated with sulfamethoxazole and voriconazole and underwent five surgical debridements and vacuum sealing drainage (VSD) applications with the left leg. The patient was eventually cured and discharged from the hospital.
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  • 文章类型: Journal Article
    毛霉菌病是一种新出现的疾病,主要影响免疫功能低下的患者;然而,在有免疫能力的个体中也有报道。儿科人群的研究有限,主要以案例研究或系列报道。本病例报告的目的是介绍起源于苏门答腊岛的小儿毛霉菌病,印度尼西亚。一名十三岁男童因面部坏死累及鼻部,被转介至三甲医院,口服,和左上颌区域,以及左眶周围水肿。没有记录已知的潜在条件。广泛的组织病理学发现证实了诊断,pauci-septate,在90°分枝的带状菌丝。患者由由耳朵组成的多学科小组管理,鼻子,喉咙,传染病,皮肤病学,手术,微生物学,和病理科。患者的管理包括坏死病变的清创和抗生素和抗真菌药(氟康唑)。由于不可用,患者未接受两性霉素B治疗。患者入院30天后死亡。这个案例突出了保持高度怀疑侵袭性毛霉菌病的重要性,即使在有免疫能力的儿童中,当出现症状和体征时,尤其是在资源有限的环境中。
    Mucormycosis is an emerging disease that primarily affects immunocompromised patients; however, it has also been reported in immunocompetent individuals. Studies in the pediatric population are limited and reported mostly in case studies or series. The aim of this case report is to present a pediatric mucormycosis originated from Sumatra Island, Indonesia. A 13-year-old boy was referred to a tertiary hospital with facial necrosis involving the nasal, oral, and left maxillary areas, as well as left periorbital edema. No known underlying conditions were documented. The diagnosis was confirmed by histopathological findings of broad, pauci-septate, ribbon-like hyphae branching at 90°. The patient was managed by a multidisciplinary team consisting of the ear, nose, and throat, infectious diseases, dermatology, surgery, microbiology, and pathology departments. Management of the patient included debridement of the necrotic lesion and antibiotics and anti-fungal (fluconazole). Due to unavailability, the patient was not treated with amphotericin B. The patient died after 30 days of admission. This case highlights the importance of maintaining a high suspicion of invasive mucormycosis, even in immunocompetent children, when symptoms and signs are present, especially in resource-limited settings.
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  • 文章类型: Case Reports
    曲霉骨髓炎是肺外侵袭性曲霉病的罕见并发症,通常表现为脊椎盘炎。临床表现通常是缺乏症状和长期演变,导致诊断困难,尤其是在表现出延迟的全身宿主反应的免疫抑制患者中。我们报告了一例由颗粒曲霉引起的股骨骨髓炎,该患者通过手术和抗真菌联合方法成功治疗了心脏移植受者。一名65岁的心脏移植男性出现了持续3个月的左膝疼痛。X线和磁共振成像确定了左股骨远端三分之一处具有侵袭性特征的病变,因此,患者接受了切除手术。从取出的材料中培养颗粒曲霉,并开始口服伊沙武康唑的抗真菌治疗。胸部成像排除肺曲霉病,而正电子发射断层扫描/计算机断层扫描(PET/CT)确定了缝在右腋窝动脉近端三分之一处的人工血管移植物的残留物,先前植入了基于导管的微型轴向左心室辅助装置,作为移植治疗的桥梁。在手术治疗和抗真菌治疗后,患者的临床症状得到了迅速改善,功能完全恢复,最后进行了手术切除残余血管移植物。这是首次报道的由于颗粒A引起的长骨骨髓炎发作,该发作发生在没有肺部感染的心脏移植受者中,并成功地用伊沙武康唑治疗。PET/CT可用于支持诊断过程和随访。隐匿性真菌可以引起侵袭性感染,特别是在免疫功能低下的患者中。分子方法在真菌鉴定中至关重要。
    Aspergillus osteomyelitis is a rare complication of extrapulmonary invasive aspergillosis, which usually presents as spondylodiscitis. The clinical picture is usually paucisymptomatic and of long evolution, which leads to diagnostic difficulties, especially in immunosuppressed patients presenting a delayed systemic host response. We report a case of femoral osteomyelitis caused by Aspergillus granulosus in a heart transplant recipient successfully treated with a combined surgical and antifungal approach. A 65-year-old heart transplant male presented with left knee pain lasting 3 months. X-ray and magnetic resonance imaging identified a lesion with aggressive characteristics at the distal third of the left femur, due to which the patient underwent excisional surgery. Aspergillus granulosus was cultured from the removed material and antifungal treatment with oral isavuconazole was started. Chest imaging excluded pulmonary aspergillosis, while the positron emission tomography/computed tomography (PET/CT) identified a remnant of a prosthetic vascular graft sewn to the proximal third of the right axillary artery, through which a catheter-based micro-axial left ventricular assist device was implanted previously as bridge to transplant therapy. The patient presented a rapid clinical improvement with complete functional recovery following the surgical treatment and the antifungal therapy and finally underwent surgical removal of the residual vascular graft. This is the first reported episode of long bone osteomyelitis due to A. granulosus that occurred in a heart transplant recipient without pulmonary infection and was successfully treated with isavuconazole. The PET/CT was useful in supporting the diagnostic process and follow-up. Cryptic fungal species can cause invasive infections, particularly in immunocompromised patients. Molecular methods are crucial in fungal identification.
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  • 文章类型: Case Reports
    人类感染弯孢菌(C.lunata)异常罕见。一名23岁的女性患者在甲型流感病毒感染期间同时感染了细菌和弯孢菌感染。由于病情波动,住院期间重复进行了多种病因检查。入院后第17天,在其中一项检查中,在患者支气管肺泡灌洗液的病原体培养中发现了霉菌菌丝。该患者被怀疑患有丝状真菌感染。因此,我们进一步获得了用于真菌培养的痰液样本,这证实了弯孢菌感染的诊断。病人,在这种情况下,情况危急,经历肺脓肿的并发症,气胸,脓毒症,多器官衰竭。尽管在检测到真菌感染并同时给予积极的器官功能支持治疗后迅速开始抗真菌治疗,包括两性霉素B胆固醇硫酸酯复合物和伊沙武康唑,由于免疫功能受损,患者的病情迅速恶化。最终,在治疗的第27天,患者死于感染性休克和多器官功能障碍综合征。这是我院首例弯孢菌感染病例。在本文中,我们旨在提高对弯孢菌感染的认识,并强调甲型流感病毒引起的重症肺炎患者应考虑这种真菌感染的可能性,当患者有侵袭性肺损伤时,应及时进行经验性抗真菌治疗.
    Human infection with Curvularia lunata (C. lunata) is exceptionally rare. A 23-year-old female patient contracted both bacterial and Curvularia lunata infections during influenza A virus infection. Multiple etiological tests were performed repeatedly during hospitalization due to fluctuations in condition. On the 17th day after hospital admission, mold hyphae were discovered in the pathogen culture of the patient\'s bronchoalveolar lavage fluid during one of these examinations. The patient was suspected to have a filamentous fungal infection. Consequently, we further obtained sputum samples for fungal culture, which confirmed the diagnosis of Curvularia infection. The patient, in this case, was in a critical condition, experiencing complications of lung abscess, pneumothorax, sepsis, and multiorgan failure. Despite prompt initiation of antifungal therapy including amphotericin B cholesteryl sulfate complex and isavuconazole upon detection of the fungal infection and concurrent administration of active organ function support treatment, the patient\'s condition rapidly deteriorated due to compromised immune function. Ultimately, on the 27th day of treatment, the patient succumbed to septic shock and multiple organ dysfunction syndrome. This is the first case of Curvularia lunata infection in our hospital. In this paper, we aim to raise awareness of Curvularia lunata infection and to emphasize that the possibility of this fungal infection should be considered in patients with severe pneumonia caused by influenza A virus and that empirical antifungal therapy should be given promptly when the patient has invasive lung damage.
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  • 文章类型: Case Reports
    Blastobotrys是稀有酵母的一种,越来越被认为是人类真菌感染的原因。然而,没有关于由Blastobotrysmokoenaii引起的人类真菌感染的报道。我们描述了一例由B.mokoenaii在免疫受损的急性髓系白血病(AML)患者中引起的侵袭性真菌感染(FI)。一名46岁的复发性/难治性AML患者在缓解期间接受了第二次异基因外周血造血干细胞移植(allo-PBSCT)。在第二次allo-PBSCT之前,患者的中性粒细胞减少症延长,并接受了针对移植物抗宿主病的全身性类固醇治疗。从第4天获得的血液培养物中分离不常见的酵母。我们最初怀疑这种不常见的酵母是Trichosporonspp。基于它的形态。然而,与Trichosporonspp不同。,体外抗真菌药敏试验表明,该酵母分离株对米卡芬净具有抗性,卡波芬金,伏立康唑,伊曲康唑,和氟康唑.我们进行了DNA测序,并将其鉴定为B.mokoenaii。在与脂质体两性霉素B和伏立康唑联合治疗期间,从血液培养物中持续分离出B.mokoenaii。患者在第24天死于多器官衰竭。B.mokoenaii可在免疫功能低下的患者中引起严重的FI;然而,在医院实验室进行的常规临床微生物学检测可能无法正确鉴定,DNA测序对诊断很有用。
    Blastobotrys is a genus of rare yeast that is increasingly recognized as a cause of fungal infections in humans. However, there have been no reports of fungal infections in humans caused by Blastobotrys mokoenaii. We describe a case of invasive fungal infection (IFI) caused by B. mokoenaii in an immunocompromised patient with acute myeloid leukemia (AML). A 46-year-old man with relapsed/refractory AML underwent a second allogeneic peripheral blood hematopoietic stem cell transplantation (allo-PBSCT) during remission. The patient had prolonged neutropenia and received systemic steroid therapy for graft-versus-host disease before the second allo-PBSCT. Uncommon yeast was isolated from the blood cultures obtained on day 4. We initially suspected that the uncommon yeast was Trichosporon spp. based on its morphology. However, unlike Trichosporon spp., in vitro antifungal susceptibility tests showed that this yeast isolate was resistant to micafungin, caspofungin, voriconazole, itraconazole, and fluconazole. We performed DNA sequencing and identified it as B. mokoenaii. B. mokoenaii was persistently isolated from blood cultures taken during combination therapy with liposomal amphotericin B and voriconazole. The patient died of multiorgan failure on day 24. B. mokoenaii can cause severe IFI in immunocompromised patients; however, it may not be correctly identified by routine clinical microbiology testing in a hospital laboratory and DNA sequencing is useful for diagnosis.
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  • 文章类型: Review
    背景:镰刀菌可引起广泛的人类感染,从表面和局部侵入性到传播性,取决于宿主和入口的免疫状态。尽管已经报道了几例烧伤患者的皮肤镰刀菌病,用于病原体识别的分子鉴定仅在少数情况下使用。
    方法:在本报告中,我们描述了一例罕见的由镰刀菌角化镰刀菌引起的广泛原发性皮肤镰刀菌病,该患者在残茬燃烧期间受伤。
    结果:对烧伤患者皮肤镰刀菌病病例的回顾表明,这种罕见的感染可能是致命的,治疗策略应同时关注手术清创和全身抗真菌治疗.此外,因为皮肤缺陷可以作为烧伤受害者镰刀菌进入的门户,早期积极治疗对防止严重后果至关重要。
    BACKGROUND: Fusarium species can cause a broad spectrum of human infections, ranging from superficial and locally invasive to disseminated, depending on the immune status of the host and portal of entry. Although several cases of cutaneous fusariosis in burn victims have been reported, molecular identification for pathogen recognition has been used only in a few cases.
    METHODS: In this report, we describe an uncommon case of extensive primary cutaneous fusariosis caused by Fusarium keratoplasticum in a patient who sustained injuries during stubble burning.
    RESULTS: A review of cases of cutaneous fusariosis in burn victims revealed that this uncommon infection could be lethal, and treatment strategies should focus on both surgical debridement and the initiation of systemic antifungal therapy. Furthermore, because skin defects can serve as a portal of entry for Fusarium species in burn victims, early and aggressive treatment is crucial to prevent serious consequences.
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