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Aqeel F, Geetha D. Kidney Failure in Pauci-immune Crescentic Glomerulonephritis: Rationale for Immunosuppression to Improve Kidney Outcome. Curr Rheumatol Rep 2024:10.1007/s11926-024-01150-z. [PMID: 38709420 DOI: 10.1007/s11926-024-01150-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2024] [Indexed: 05/07/2024]
Abstract
PURPOSE OF REVIEW Pauci-immune crescentic glomerulonephritis is the hallmark finding in ANCA-associated vasculitis (AAV) when the kidneys are affected. The rationale for immunosuppression in AAV is based on the underlying autoimmune nature of the disease. Overall remission rates, kidney outcomes, and the burden of disease have greatly improved since the discovery of various immunosuppressive therapies, but relapses remain common, and a significant proportion of patients continue to progress to end-stage kidney disease. Here, we review the role of immunosuppressive therapies for the treatment of pauci-immune crescentic glomerulonephritis. RECENT FINDINGS Besides the recognized role of B and T cells in the pathogenies of AAV, the focus on the contribution of inflammatory cytokines, neutrophil extracellular traps (NETs), and the complement system allowed the discovery of new therapies. Specifically, the C5a receptor blocker (avacopan) has been approved as a glucocorticoid-sparing agent. Additionally, based on observational data, more clinicians are now using combination therapies during the induction phase. There is also an evolving understanding of the role of plasma exchange in removing ANCA antibodies. Furthermore, the recent development of risk score systems provides physicians with valuable prognostic information that can influence decisions on immunosuppression, although future validation from larger cohorts is needed. The over-activation of various immune pathways plays a significant role in the pathogenesis of pauci-immune crescentic glomerulonephritis in AAV. Immunosuppression is, therefore, an important strategy to halt disease progression and improve overall outcomes. Relapse prevention while minimizing adverse events of immunosuppression is a major long-term goal in AAV management.
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Affiliation(s)
- Faten Aqeel
- Department of Internal Medicine, Division of Nephrology, Johns Hopkins University School of Medicine, 301 Mason Lord Drive, Baltimore, MD, USA
| | - Duvuru Geetha
- Department of Internal Medicine, Division of Nephrology, Johns Hopkins University School of Medicine, 301 Mason Lord Drive, Baltimore, MD, USA.
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Meidrops K, Groma V, Goldins NR, Apine L, Skuja S, Svirskis S, Gudra D, Fridmanis D, Stradins P. Understanding Bartonella-Associated Infective Endocarditis: Examining Heart Valve and Vegetation Appearance and the Role of Neutrophilic Leukocytes. Cells 2023; 13:43. [PMID: 38201247 PMCID: PMC10778237 DOI: 10.3390/cells13010043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/19/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND The endocardium and cardiac valves undergo severe impact during infective endocarditis (IE), and the formation of vegetation places IE patients at a heightened risk of embolic complications and mortality. The relevant literature indicates that 50% of IE cases exhibit structurally normal cardiac valves, with no preceding history of heart valve disease. Gram-positive cocci emerge as the predominant causative microorganisms in IE, while Gram-negative Bartonella spp., persisting in the endothelium, follow pathogenic pathways distinct from those of typical IE-causing agents. Employing clinical as well as advanced microbiological and molecular assays facilitated the identification of causative pathogens, and various morphological methods were applied to evaluate heart valve damage, shedding light on the role of neutrophilic leukocytes in host defense. In this research, the immunohistochemical analysis of neutrophilic leukocyte activation markers such as myeloperoxidase, neutrophil elastase, calprotectin, and histone H3, was performed. A distinct difference in the expression patterns of these markers was observed when comparing Bartonella spp.-caused and non-Bartonella spp.-caused IE. The markers exhibited significantly higher expression in non-Bartonella spp.-caused IE compared to Bartonella spp.-caused IE, and they were more prevalent in vegetation than in the valvular leaflets. Notably, the expression of these markers in all IE cases significantly differed from that in control samples. Furthermore, we advocated the use of 16S rRNA Next-Generation Sequencing on excised heart valves as an effective diagnostic tool for IE, particularly in cases where blood cultures yielded negative results. The compelling results achieved in this study regarding the enigmatic nature of Bartonella spp. IE's pathophysiology contribute significantly to our understanding of the peculiarities of inflammation and immune responses.
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Affiliation(s)
- Kristians Meidrops
- Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia (L.A.); (P.S.)
- Centre of Cardiac Surgery, Pauls Stradins Clinical University Hospital, 13 Pilsonu Street, LV-1002 Riga, Latvia
| | - Valerija Groma
- Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia (L.A.); (P.S.)
- Joint Laboratory of Electron Microscopy, Riga Stradins University, 9 Kronvalda Boulevard, LV-1010 Riga, Latvia
| | - Niks Ricards Goldins
- Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia (L.A.); (P.S.)
| | - Lauma Apine
- Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia (L.A.); (P.S.)
| | - Sandra Skuja
- Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia (L.A.); (P.S.)
- Joint Laboratory of Electron Microscopy, Riga Stradins University, 9 Kronvalda Boulevard, LV-1010 Riga, Latvia
| | - Simons Svirskis
- Institute of Microbiology and Virology, Riga Stradins University, Ratsupites Str. 5, LV-1067 Riga, Latvia;
| | - Dita Gudra
- Latvian Biomedical Research and Study Centre, LV-1067 Riga, Latvia; (D.G.); (D.F.)
| | - Davids Fridmanis
- Latvian Biomedical Research and Study Centre, LV-1067 Riga, Latvia; (D.G.); (D.F.)
| | - Peteris Stradins
- Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia (L.A.); (P.S.)
- Centre of Cardiac Surgery, Pauls Stradins Clinical University Hospital, 13 Pilsonu Street, LV-1002 Riga, Latvia
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Shahzad MA, Aziz KT, Korbet S. Bartonella henselae Infective Endocarditis: A Rare Cause of Pauci-Immune Necrotizing Glomerulonephritis-A Case Report. Can J Kidney Health Dis 2023; 10:20543581221150554. [PMID: 36700055 PMCID: PMC9869233 DOI: 10.1177/20543581221150554] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 12/04/2022] [Indexed: 01/19/2023] Open
Abstract
Rationale Bartonella sp. are the most common causes of culture-negative infective endocarditis (IE) cases in the United States. Although, infection-related glomerulonephritis can frequently mimic primary vasculitis due to pauci-immune pattern, majority of previously reported cases of Bartonella henselae-associated glomerulonephritis have immune-complex deposits on immunofluorescence. We present a rare case of B henselae IE-related pauci-immune necrotizing glomerulonephritis. Timely recognition of this atypical presentation led to appropriately directed medical therapy. Presenting concerns of the patient A 33-year-old Caucasian male with a history of human immunodeficiency virus (HIV) on highly active antiretroviral therapy (HAART), alcohol abuse, previous subarachnoid hemorrhage (SAH), and recent wisdom tooth extraction (on amoxicillin) was transferred from an outside hospital for further evaluation of severe headache. He was diagnosed with an SAH and right anterior cerebral artery mycotic aneurysm. The serum creatinine at the outside hospital was 292 umol/L (3.3 mg/dL) with a previously normal baseline around 2 years ago. The serum creatinine at our institution was 256 umol/L (3.0 mg/dL). The urinalysis demonstrated +100 protein, +3 blood and 29 red blood cells/high power field. The urine protein creatinine ratio (UPC) was 1.7 g/g. Serologic evaluation was positive for a low C4 10.2 mg/dL, elevated rheumatoid factor 40 IU/mL and an elevated proteinase 3 (PR-3) antineutrophilic cytoplasmic antibodies (ANCA Ab) 4.0 U/mL. A transesophageal echocardiogram (TEE) showed echo densities on both mitral and aortic valve. Blood cultures were negative. Further serologic evaluation was positive for B henselae IgG titer of 1:2560 (normal <1:320) with a negative IgM titer. Diagnoses A percutaneous kidney biopsy revealed pauci-immune necrotizing glomerulonephritis, with 14/16 glomeruli globally sclerotic, and 2 glomeruli with active segmental necrotizing lesions. There was no evidence of immune-complex deposition on immunofluorescence or electron microscopy. Clinical findings were consistent with B henselae IE associated mycotic aneurysm and necrotizing glomerulonephritis. Intervention Empiric treatment for an active glomerulonephritis with immunosuppressive agents was deferred on admission, given concern for an underlying infectious process and mycotic aneurysms in an HIV-positive patient. He received antibiotic treatment with doxycycline and ceftriaxone with gentamicin for synergy. Despite this, the mitral and aortic valve regurgitation worsened, and he developed congestive heart failure requiring aortic valve replacement and mitral valve repair. The explanted aortic valve was positive for B henselae by polymerase chain reaction (PCR) confirming the diagnosis of B henselae IE. Outcomes Immunosuppression was deferred due to timely identification of an atypical presentation of B henselae-associated ANCA antibodies-positive, pauci-immune necrotizing glomerulonephritis. A course of antibiotic treatment resulted in improved renal functions along with undetectable B henselae and PR3 Ab titers. The serum creatinine decreased to 176 umol/L (2 mg/dL) and remained stable 12 months after discharge. Teaching points B henselae IE should be suspected in patients with pauci-immune necrotizing glomerulonephritis and culture-negative IE. This is imperative for optimal decision making in the management of such patients. Having high clinical suspicion can avoid unnecessary and potentially deleterious use of immunosuppressive agents.
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Affiliation(s)
- Muhammad Asim Shahzad
- Division of Nephrology, RUSH University Medical Center, Chicago, IL, USA,Muhammad Asim Shahzad, Division of Nephrology, RUSH University Medical Center, 1620W. Harrison St., Chicago, IL 60612-3833, USA.
| | | | - Stephen Korbet
- Division of Nephrology, RUSH University Medical Center, Chicago, IL, USA
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Guo S, Pottanat ND, Herrmann JL, Schamberger MS. Bartonella endocarditis and diffuse crescentic proliferative glomerulonephritis with a full-house pattern of immune complex deposition. BMC Nephrol 2022; 23:181. [PMID: 35549887 PMCID: PMC9097344 DOI: 10.1186/s12882-022-02811-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 05/04/2022] [Indexed: 12/01/2022] Open
Abstract
Background Bartonella endocarditis is often a diagnostic challenge due to its variable clinical manifestations, especially when it is first presented with involvement of organs other than skin and lymph nodes, such as the kidney. Case presentation This was a 13-year-old girl presenting with fever, chest and abdominal pain, acute kidney injury, nephrotic-range proteinuria and low complement levels. Her kidney biopsy showed diffuse crescentic proliferative glomerulonephritis with a full-house pattern of immune complex deposition shown by immunofluorescence, which was initially considered consistent with systemic lupus erythematous-associated glomerulonephritis (lupus nephritis). After extensive workup, Bartonella endocarditis was diagnosed. Antibiotic treatment and valvular replacement surgery were undertaken with subsequent return of kidney function to normal range. Conclusion This case demonstrates the importance of considering the full clinical picture when interpreting clinical, laboratory and biopsy findings, because the treatment strategy for infective endocarditis versus lupus nephritis is drastically different.
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Affiliation(s)
- Shunhua Guo
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, 350 W. 11th street, Indianapolis, IN, 46202, USA.
| | - Neha D Pottanat
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Jeremy L Herrmann
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Marcus S Schamberger
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
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Yusuf Mohamud MF, Mukhtar MS. Presenting Clinicoradiological Features, Microbiological Spectrum and Outcomes Among Patients with Septic Pulmonary Embolism: A Three-Year Retrospective Observational Study. Int J Gen Med 2022; 15:5223-5235. [PMID: 35651673 PMCID: PMC9148921 DOI: 10.2147/ijgm.s364522] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 05/16/2022] [Indexed: 01/25/2023] Open
Abstract
Background Septic pulmonary embolism (SPE) is an unusual condition characterized by the implantation of infected thrombi into the pulmonary vasculature from a variety of infectious sources. This study aimed to illustrate the clinicoradiological features, microbiological spectrum, and clinical course of patients with SPE, as well as to promote the early identification, diagnosis, and prognosis of this unusual disease. Methods Nineteen patients with SPE collected from the electronic medical records of our hospital were retrospectively reviewed during three years. Results The study included twelve men and seven women with a mean age of 49 (15–78). The most common presenting features were fever (79%) and shortness of breath (73.7%). Chronic kidney disease (68.4%) and diabetes (36.8%) were the most common comorbidities. The most common source of infection was venous catheters (58%). Staphylococcus aureus was the most predominant pathogen in about 52.6% of the cases. According to the CT findings, bilateral opacities were detected in all cases, flowing by nodular in 73.9% and cavitations in 57.9%. Central distributions were the most patterns regarding the location of the lesion seen in 47.4% of the patients. All patients received antimicrobial treatment, while 13 cases administered systemic anticoagulant. Most of the patients (73.7%) recovered from their illness, while 26.3% died. The median duration of hospitalization was 11.5 days. Oxygen saturation level and altered mental status were significantly associated with the mortality rate of SPE patients. Conclusion The study’s findings presented that altered mental status and low oxygen saturation are associated with a high mortality rate in SPE patients, especially those requiring critical care. Early diagnosis of an embolic phenomenon to other organ systems like the central nervous system can greatly influence the patient’s outcome.
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Affiliation(s)
- Mohamed Farah Yusuf Mohamud
- Mogadishu Somali-Turkish Training and Research Hospital, Mogadishu, Somalia
- Correspondence: Mohamed Farah Yusuf Mohamud, Mogadishu Somali-Turkish Training and Research Hospital, 30 Street, Alikamin, Wartanabada District, Mogadishu, Somalia, Tel +252615591689, Email
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Prognostic factors of mortality after surgery in infective endocarditis: systematic review and meta-analysis. Infection 2019; 47:879-895. [PMID: 31254171 DOI: 10.1007/s15010-019-01338-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 06/22/2019] [Indexed: 02/07/2023]
Abstract
PURPOSE There is a lack of consensus about which endocarditis-specific preoperative characteristics have an actual impact over postoperative mortality. Our objective was the identification and quantification of these factors. METHODS We performed a systematic review of all the studies which reported factors related to in-hospital mortality after surgery for acute infective endocarditis, conducted according to PRISMA recommendations. A search string was constructed and applied on three different databases. Two investigators independently reviewed the retrieved references. Quality assessment was performed for identification of potential biases. All the variables that were included in at least two validated risk scores were meta-analyzed independently, and the pooled estimates were expressed as odds ratios (OR) with their confidence intervals (CI). RESULTS The final sample consisted on 16 studies, comprising a total of 7484 patients. The overall pooled OR were statistically significant (p < 0.05) for: age (OR 1.03, 95% CI 1.00-1.05), female sex (OR 1.56, 95% CI 1.35-1.81), urgent or emergency surgery (OR 2.39 95% CI 1.91-3.00), previous cardiac surgery (OR 2.19, 95% CI 1.84-2.61), NYHA ≥ III (OR 1.84, 95% CI 1.33-2.55), cardiogenic shock (OR 4.15, 95% CI 3.06-5.64), prosthetic valve (OR 1.98, 95% CI 1.68-2.33), multivalvular affection (OR 1.35, 95% CI 1.01-1.82), renal failure (OR 2.57, 95% CI 2.15-3.06), paravalvular abscess (OR 2.39, 95% CI 1.77-3.22) and S. aureus infection (OR 2.27, 95% CI 1.89-2.73). CONCLUSIONS After a systematic review, we identified 11 preoperative factors related to an increased postoperative mortality. The meta-analysis of each of these factors showed a significant association with an increased in-hospital mortality after surgery for active infective endocarditis. Graph summary of the Pooled Odds Ratios of the 11 preoperative factors analyzed after the systematic review and meta-analysis.
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Dudzinski DM, Mangalmurti SS, Oetgen WJ. Characterization of Medical Professional Liability Risks Associated With Transesophageal Echocardiography. J Am Soc Echocardiogr 2019; 32:359-364. [PMID: 30679140 DOI: 10.1016/j.echo.2018.11.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND Medical claim data offer the possibility to improve patient care and mitigate liability. Although published analyses exist in cardiology, no information is available for transesophageal echocardiography (TEE). In this study, the authors reviewed medical claims involving TEE to identify potential risk management concerns so that these lessons could be used to improve the safety and quality of transesophageal echocardiographic practice. METHODS The authors reviewed anonymized clinical and claims data from all closed claims from 2008 to 2013 for a single national physician liability insurer. RESULTS There were no claims involving transthoracic echocardiography and eight involving TEE. Three claims involved esophageal perforation, a known risk of TEE. Two claims involved quadriplegia allegedly due to neck manipulation in the setting of a cervical spinal abscess that should have been suspected. Three claims involved the cardiologist's failure to diagnose endocarditis, with allegations that the cardiologist did not perform TEE in an appropriate time frame to avoid major morbidity and mortality from endocarditis. CONCLUSIONS Liability claims associated with TEE involve failure to order and perform TEE in an appropriate clinical scenario and in a timely manner; failure to properly document medical decision making; failure to inform patients regarding risks of TEE; failure to properly monitor the patient before, during, and after TEE; and technical difficulties in performing the procedure. Cardiologists should recognize guideline-based indications when TEE is needed and be mindful of the complication rates of this procedure. When screening a patient for TEE, consider expert input that may reduce the risks of TEE (e.g., a spine specialist for a neck injury, a gastroenterologist for esophageal comorbidity). Informed consent and medical record documentation should be practiced as a vehicle to inform patients of these risks and chronicle decision-making processes.
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Affiliation(s)
- David M Dudzinski
- Cardiology Division, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, New York.
| | - Sandeep S Mangalmurti
- Bassett Heart Care Institute, Cooperstown, New York, New York; Columbia University, College of Physicians and Surgeons, New York, New York
| | - William J Oetgen
- Division of Science & Quality, American College of Cardiology, Washington, District of Columbia
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Duperril M, Rapin S, Vuillard C, Rayet I, Patural H. Case report: Staphylococcus aureus endocarditis in 2 premature newborns. Medicine (Baltimore) 2019; 98:e13549. [PMID: 30608383 PMCID: PMC6344129 DOI: 10.1097/md.0000000000013549] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
RATIONALE Neonatal infectious endocarditis (IE) in a healthy heart is rare. The infectious agents most frequently found in newborns are Staphylococcus aureus and fungi. Infection at the site of central intravenous catheter is generally thought to be the cause of this pathology. PATIENT CONCERNS We present 2 cases of premature newborns whose condition is evolving positively. They presented S aureus endocarditis during their first week of life. DIAGNOSIS Modified Duke diagnostic criteria-from clinical, echocardiogram and microbiological findings-based on those used for adults, can be used for children and newborns, but the very low prevalence of neonatal IE often delays diagnosis. Diagnosis on the basis of transthoracic heart ultrasound requires an extension report, given the very high embolic risk. INTERVENTION In the large majority of cases, long-term antibiotic therapy efficaciously treats the infection, although sometimes surgery is necessary. These 2 newborns needed only antibiotic therapy. OUTCOME Despite the various complications, especially embolic, these 2 children are followed and are doing well. LESSONS Long-term pediatric heart monitoring combined with prophylactic antibiotics are essential, according to the European Society of Cardiology guidelines.
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Affiliation(s)
- Marie Duperril
- Neonatal Intensive Care Unit, Department of Pediatric Medicine, CHU de Saint-Etienne
| | - Stéphanie Rapin
- Neonatal Intensive Care Unit, Department of Pediatric Medicine, CHU de Saint-Etienne
| | - Cécilia Vuillard
- Neonatal Intensive Care Unit, Department of Pediatric Medicine, CHU de Saint-Etienne
| | - Isabelle Rayet
- Neonatal Intensive Care Unit, Department of Pediatric Medicine, CHU de Saint-Etienne
| | - hugues Patural
- Neonatal Intensive Care Unit, Department of Pediatric Medicine, CHU de Saint-Etienne
- EA SNA-EPIS Research Laboratory, Jean Monnet University of Saint-Etienne, Saint-Etienne, France
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ANCA-associated pauci-immune glomerulonephritis in a patient with bacterial endocarditis: a challenging clinical dilemma. Clin Nephrol Case Stud 2017; 5:32-37. [PMID: 29043145 PMCID: PMC5438016 DOI: 10.5414/cncs109076] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 03/03/2017] [Indexed: 11/24/2022] Open
Abstract
Purpose: We report the case of a 59-year-old man with chronic hepatitis B and C infection presenting with acute kidney injury and enterococcus faecalis-infective endocarditis (IE). An elevated proteinase-3 (PR3)-ANCA and pauci-immune glomerulonephritis (GN) on renal biopsy were discovered, corresponding to ANCA-mediated GN. We conducted a literature review to assess the role of ANCA in IE and treatment implications. Methods: On systematic review of the literature, we found five previous cases whereby IE caused by streptococcus and bartonella species were related to ANCA vasculitis-associated GN. Results: Most reports of IE-related GN are mediated by immune complex deposition and resolve following microbial clearance. Of the 5 cases of ANCA GN in the setting of IE, all had markedly elevated levels of PR3-ANCA with either a subacute or chronic course of infection. Patients were treated with a combination of steroids and cyclophosphamide (2/5), steroids and antibiotics alone (1/5), or with valvular replacement (2/5). Renal function was recovered in 4/5 patients. Conclusion: Infection is a major etiologic player in the formation of ANCA; however, the role of PR3-ANCA in IE remains unclear. Kidney biopsy is essential in differentiating IE-related GN due to infection and immune complex deposition versus ANCA-associated vasculitis. A paucity of reports on the development of GN in IE-associated ANCA vasculitis exists, highlighting the rarity of our case and lack of clear therapeutic strategies in a patient with active infection requiring immunosuppression. In this case, the patient’s chronic hepatitis B and C coinfection presented a unique challenge.
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Jáni L, Mester A, Péter BO. Huge Vegetation on Aortic Valve in a Young Patient with Infective Endocarditis Caused by Enterococcus Faecalis. JOURNAL OF INTERDISCIPLINARY MEDICINE 2016. [DOI: 10.1515/jim-2016-0043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Laura Jáni
- Center of Advanced Research in Multimodality Cardiac Imaging, Cardio Med Medical Center, Tîrgu Mureș, Romania
| | - András Mester
- Center of Advanced Research in Multimodality Cardiac Imaging, Cardio Med Medical Center, Tîrgu Mureș, Romania
| | - Balázs Oltean Péter
- Clinic of Cardiology, University of Medicine and Pharmacy, Tîrgu Mureș, Romania
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Raybould JE, Raybould AL, Morales MK, Zaheer M, Lipkowitz MS, Timpone JG, Kumar PN. Bartonella Endocarditis and Pauci-Immune Glomerulonephritis: A Case Report and Review of the Literature. INFECTIOUS DISEASES IN CLINICAL PRACTICE 2016; 24:254-260. [PMID: 27885316 PMCID: PMC5098464 DOI: 10.1097/ipc.0000000000000384] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Among culture-negative endocarditis in the United States, Bartonella species are the most common cause, with Bartonella henselae and Bartonella quintana comprising the majority of cases. Kidney manifestations, particularly glomerulonephritis, are common sequelae of infectious endocarditis, with nearly half of all Bartonella patients demonstrating renal involvement. Although a pauci-immune pattern is a frequent finding in infectious endocarditis-associated glomerulonephritis, it is rarely reported in Bartonella endocarditis. Anti-neutrophil cytoplasmic antibody (ANCA) positivity can be seen with many pathogens causing endocarditis and has been previously reported with Bartonella species. In addition, ANCA-associated vasculitis can also present with renal and cardiac involvement, including noninfectious valvular vegetations and pauci-immune glomerulonephritis. Given the overlap in their clinical presentation, it is difficult to differentiate between Bartonella endocarditis and ANCA-associated vasculitis but imperative to do so to guide management decisions. We present a case of ANCA-positive Bartonella endocarditis with associated pauci-immune glomerulonephritis that was successfully treated with medical management alone.
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Affiliation(s)
- Jillian E Raybould
- Medstar Georgetown University Hospital, Georgetown University School of Medicine, Division of Infectious Diseases and Travel Medicine, Washington, DC; †The University of North Carolina at Chapel Hill Hospital, Chapel Hill, NC; and ‡Medstar Georgetown University Hospital, Georgetown University School of Medicine, Division of Nephrology and Hypertension, Washington, DC
| | - Alison L Raybould
- Medstar Georgetown University Hospital, Georgetown University School of Medicine, Division of Infectious Diseases and Travel Medicine, Washington, DC; †The University of North Carolina at Chapel Hill Hospital, Chapel Hill, NC; and ‡Medstar Georgetown University Hospital, Georgetown University School of Medicine, Division of Nephrology and Hypertension, Washington, DC
| | - Megan K Morales
- Medstar Georgetown University Hospital, Georgetown University School of Medicine, Division of Infectious Diseases and Travel Medicine, Washington, DC; †The University of North Carolina at Chapel Hill Hospital, Chapel Hill, NC; and ‡Medstar Georgetown University Hospital, Georgetown University School of Medicine, Division of Nephrology and Hypertension, Washington, DC
| | - Misbah Zaheer
- Medstar Georgetown University Hospital, Georgetown University School of Medicine, Division of Infectious Diseases and Travel Medicine, Washington, DC; †The University of North Carolina at Chapel Hill Hospital, Chapel Hill, NC; and ‡Medstar Georgetown University Hospital, Georgetown University School of Medicine, Division of Nephrology and Hypertension, Washington, DC
| | - Michael S Lipkowitz
- Medstar Georgetown University Hospital, Georgetown University School of Medicine, Division of Infectious Diseases and Travel Medicine, Washington, DC; †The University of North Carolina at Chapel Hill Hospital, Chapel Hill, NC; and ‡Medstar Georgetown University Hospital, Georgetown University School of Medicine, Division of Nephrology and Hypertension, Washington, DC
| | - Joseph G Timpone
- Medstar Georgetown University Hospital, Georgetown University School of Medicine, Division of Infectious Diseases and Travel Medicine, Washington, DC; †The University of North Carolina at Chapel Hill Hospital, Chapel Hill, NC; and ‡Medstar Georgetown University Hospital, Georgetown University School of Medicine, Division of Nephrology and Hypertension, Washington, DC
| | - Princy N Kumar
- Medstar Georgetown University Hospital, Georgetown University School of Medicine, Division of Infectious Diseases and Travel Medicine, Washington, DC; †The University of North Carolina at Chapel Hill Hospital, Chapel Hill, NC; and ‡Medstar Georgetown University Hospital, Georgetown University School of Medicine, Division of Nephrology and Hypertension, Washington, DC
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Abstract
Infective endocarditis is a life-threatening illness associated with significant morbidity and mortality. Previously a uniformly fatal disease, antibiotic therapy has reduced the mortality of native valve endocarditis to less than 20%. The incidence of infective endocarditis has not decreased, however, and 20,000 new cases are reported each year. Continued improvement in the prognosis of endocarditis is largely dependent on early and accurate diagnosis of the disease and its complications. Echocardiography has assumed an important role in the evaluation of infective endocarditis, both for the detection of vegetations and in the assessment of complications of the infectious process.
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Affiliation(s)
- Priscilla J. Peters
- Cooper University Hospital, Division of Cardiology, Echocardiography Laboratory, Camden, NJ,
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Brink J, d’Udekem Y. So, Vegetation Size in Right-sided Endocarditis does not Matter, or does It? Heart Lung Circ 2016; 25:419-20. [DOI: 10.1016/s1443-9506(16)30025-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Necrotizing ANCA-Positive Glomerulonephritis Secondary to Culture-Negative Endocarditis. Case Rep Nephrol 2015; 2015:649763. [PMID: 26819786 PMCID: PMC4706874 DOI: 10.1155/2015/649763] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 12/15/2015] [Indexed: 11/28/2022] Open
Abstract
Infective endocarditis (IE) and small-vessel vasculitis may have similar clinical features, including glomerulonephritis. Furthermore the association between IE and ANCA positivity is well documented, making differential diagnosis between IE- and ANCA-associated vasculitis particularly difficult, especially in case of culture-negative IE. We report on one patient with glomerulonephritis secondary to culture-negative IE caused by Bartonella henselae which illustrates this diagnostic difficulty.
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Abramczuk E, Stępińska J, Hryniewiecki T. Twenty-Year Experience in the Diagnosis and Treatment of Infective Endocarditis. PLoS One 2015; 10:e0134021. [PMID: 26230402 PMCID: PMC4521749 DOI: 10.1371/journal.pone.0134021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 07/04/2015] [Indexed: 12/30/2022] Open
Abstract
Aims The aim of this study was to compare the etiology, clinical course, selected diagnostic methods and efficacy of the treatment used in patients with infective endocarditis (IE) in the nineteen eighties and nineties. Material and Methods The study group comprised 300 patients with infective endocarditis hospitalized in the Institute of Cardiology in Warsaw in the following years: from 1982 to 1987 (150 patients: 75 successive patients with IE on the prosthetic valve and 75 successive patients with IE on the native valve), as well as from 1990 to 2003 (150 patients: 75 successive patients with IE on the prosthetic valve and 75 successive patients with IE on the native valve). Results In the nineties, immunological symptoms, embolism formation and progressive heart failure were diagnosed decidedly more frequently. Early prosthetic valve endocarditis (PVE) (up to 60 days after operation) occurred significantly more frequently in the eighties. The quantity of negative blood cultures in PVE has not decreased, it is still observed in over 20% of cases. For 20 years the etiology of PVE has remained the same, the dominant pathogen remains Staphylococcus. The frequency of PVE caused by Streptococci has markedly reduced. In both the decades analyzed the etiology of native valve endocarditis (NVE) was similar. In the eighties Streptococcus was predominant. In successive years the number of infections caused by Staphylococci was the same as that caused by Streptococci. Conclusions The incidence of early PVE decreased in the nineties. More patients were treated surgically with lesser peri-operative mortality. A lower incidence of infective endocarditis on prosthetic valves caused by streptococci may signify better prophylaxis against infective endocarditis. Infective endocarditis with sterile blood cultures continues to occur frequently.
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The unique clinical features and outcome of infectious endocarditis and vertebral osteomyelitis co-infection. Am J Med 2014; 127:669.e9-669.e15. [PMID: 24608019 DOI: 10.1016/j.amjmed.2014.02.023] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Revised: 01/28/2014] [Accepted: 02/10/2014] [Indexed: 11/21/2022]
Abstract
OBJECTIVE The clinical significance of vertebral osteomyelitis and infectious endocarditis co-infection is unclear. This study investigates the rate, clinical features, and outcome of vertebral osteomyelitis with and without concomitant infectious endocarditis. METHODS A retrospective study of all cases of osteomyelitis with spinal imaging (n = 176), from January 2007 to April 2013, that were diagnosed as vertebral osteomyelitis. Sixty-two patients with spontaneous vertebral osteomyelitis were identified after excluding postsurgical, decubitus ulcers and spinal metastases. Seventeen (27%) were identified with concomitant infectious endocarditis. RESULTS All patients presented with back pain and 59% were diagnosed with infectious endocarditis subsequent to vertebral osteomyelitis. Distinguishing features among the co-infection group include the increased use of transesophageal echocardiography (94% vs 58%, P = .004), predisposing cardiac conditions (59% vs 16%, P = .001), and Gram-positive bacteremia, of which Streptococcus sp. and Enterococcus sp. were more common (35% vs 11%, P = .026). Adverse neurologic events were increased significantly in the co-infection group (59% vs 22%, P = .006). On transesophageal echocardiography, 88% of co-infection patients had highly mobile vegetations, 9 of which measured 10 mm or more. The overall mortality was 41% and 29% in the co-infection and lone vertebral osteomyelitis groups, respectively (P = .356). One-year mortality was identical for both groups at 24% (P = .999), and higher than previously reported (11.3% for lone vertebral osteomyelitis). CONCLUSIONS Patients with vertebral osteomyelitis, in whom infectious endocarditis is not excluded, are at increased risk for adverse neurologic events and mortality. The prompt diagnosis of infectious endocarditis, and associated high-risk features that may benefit from surgical intervention, require early evaluation by transesophageal echocardiography.
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Khalighi MA, Nguyen S, Wiedeman JA, Palma Diaz MF. Bartonella Endocarditis–Associated Glomerulonephritis: A Case Report and Review of the Literature. Am J Kidney Dis 2014; 63:1060-5. [DOI: 10.1053/j.ajkd.2013.10.058] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Accepted: 10/23/2013] [Indexed: 11/11/2022]
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Optimal Timing for Cardiac Surgery in Infective Endocarditis: Is Earlier Better? Curr Infect Dis Rep 2014; 16:411. [DOI: 10.1007/s11908-014-0411-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Erba PA, Sollini M, Conti U, Bandera F, Tascini C, De Tommasi SM, Zucchelli G, Doria R, Menichetti F, Bongiorni MG, Lazzeri E, Mariani G. Radiolabeled WBC scintigraphy in the diagnostic workup of patients with suspected device-related infections. JACC Cardiovasc Imaging 2013; 6:1075-1086. [PMID: 24011775 DOI: 10.1016/j.jcmg.2013.08.001] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Revised: 07/26/2013] [Accepted: 08/01/2013] [Indexed: 12/24/2022]
Abstract
OBJECTIVES The aim of this study was to investigate the diagnostic performance of (99m)Tc-hexamethypropylene amine oxime labeled autologous white blood cell ((99m)Tc-HMPAO-WBC) scintigraphy in patients with suspected infections associated with cardiovascular implantable electronic devices (CIEDs). BACKGROUND Early, definite recognition of CIED-related infections combined with accurate localization and quantification of disease burden is a prerequisite for optimal treatment strategies. METHODS All 63 consecutive patients underwent clinical examination, blood chemistry, microbiology, and echography of the cardiac region/venous pathway of the device. Final diagnosis of infection was established in 32 of 63 patients and in 23 of 32 by microbiology. RESULTS Sensitivity of (99m)Tc-HMPAO-WBC single-photon emission computed tomography/computed tomography (SPECT/CT) was 94% for both detection and localization of CIED-associated infection. SPECT/CT imaging had a definite added diagnostic value over both planar and stand-alone SPECT. Pocket infection was often associated with lead(s) involvement; the intracardiac portion of the lead(s) more frequently exhibited (99m)Tc-HMPAO-WBC accumulation and presented the highest rate of complications, infectious endocarditis, and septic embolism. Two false negative cases and no false positive results were observed. None of the patients with negative (99m)Tc-HMPAO-WBC scintigraphy developed CIED-related infection during follow-up of 12 months. Echography of the cardiac region/venous pathway of the device had 90% specificity, but low sensitivity (81% when intracardiac lead[s] infection only was considered). The Duke criteria had 31% sensitivity for the definite category (100% specificity) and 81% for the definite and possible categories (77% specificity). CONCLUSIONS (99m)Tc-HMPAO-WBC scintigraphy enabled the confirmation of the presence of CIED-associated infection, definition of the extent of device involvement, and detection of associated complications. Moreover, (99m)Tc-HMPAO-WBC scintigraphy reliably excluded device-associated infection during a febrile episode and sepsis, with 95% negative predictive value.
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Affiliation(s)
- Paola A Erba
- Department of Translational Research and Advanced Technologies in Medicine, University of Pisa, Pisa, Italy; Regional Center of Nuclear Medicine, University of Pisa, Pisa, Italy.
| | - Martina Sollini
- Regional Center of Nuclear Medicine, University of Pisa, Pisa, Italy
| | - Umberto Conti
- Division of Cardiology, University Hospital of Pisa, Pisa, Italy
| | | | - Carlo Tascini
- Division of Infectious Diseases, University Hospital of Pisa, Pisa, Italy
| | | | - Giulio Zucchelli
- Division of Cardiology, University Hospital of Pisa, Pisa, Italy
| | - Roberta Doria
- Division of Infectious Diseases, University Hospital of Pisa, Pisa, Italy
| | | | | | - Elena Lazzeri
- Department of Translational Research and Advanced Technologies in Medicine, University of Pisa, Pisa, Italy; Regional Center of Nuclear Medicine, University of Pisa, Pisa, Italy
| | - Giuliano Mariani
- Department of Translational Research and Advanced Technologies in Medicine, University of Pisa, Pisa, Italy; Regional Center of Nuclear Medicine, University of Pisa, Pisa, Italy
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Malhotra A, Prendergast BD. Evaluating treatment options for patients with infective endocarditis: when is it the right time for surgery? Future Cardiol 2012; 8:847-61. [DOI: 10.2217/fca.12.46] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Infective endocarditis remains a life-threatening condition with an unchanging incidence and mortality of nearly 30% at 1 year. Surgery is required in 25–50% of acute infections and 20–40% of patients during convalescence. Operative procedures are often technically challenging and high-risk, often due to coexistent multisystem disease. However, international guidelines provide clear indications for surgical intervention, which are applicable for the majority of patients. These are not, however, supported by particularly robust clinical evidence and decision-making often needs to be tailored to the advancing age of the overall patient cohort, the presence of multisystem disease, comorbidities, prior antibiotic therapy of varying duration and the availability of surgical expertise. Native valve endocarditis will be the initial focus of this article, along with subgroups including prosthetic valve endocarditis. We present the treatment options for patients with infective endocarditis, evaluate the evidence-base that supports current clinical practice and attempt to provide an insight and subsequent recommendations for the timing of surgery.
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Affiliation(s)
- Aneil Malhotra
- Department of Cardiology, The John Radcliffe Hospital, Headley Way, Headington, Oxford, OX3 9DU, UK
| | - Bernard D Prendergast
- Department of Cardiology, The John Radcliffe Hospital, Headley Way, Headington, Oxford, OX3 9DU, UK
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Abstract
Postinfectious glomerulonephritis (PIGN) is an immunologically mediated glomerular injury triggered by an infection. Poststreptococcal glomerulonephritis (PSGN) is a classic example of PIGN with diffuse proliferative and exudative glomerular histology, dominant C3 staining and subepithelial "humps." Only the nephritogenic streptococcal infections cause PSGN and susceptibility to develop PSGN depends on both host and microbial factors. Over the last decade, two nephritogenic antigens, "nephritis-associated plasmin receptor" and "streptococcal pyrogenic exotoxin B" have been identified. PSGN is a self-limited disease, especially in children, but long-term follow-up studies indicate persistent low-grade renal abnormalities in a significant proportion of patients. PSGN continues to be a serious public health concern in third world countries, but the incidence of streptococcal infections has steadily declined in industrialized nations. PIGN in the western world is now primarily because of nonstreptococcal infections, often affecting older individuals with comorbidities such as diabetes mellitus or alcoholism, and is associated with poor outcomes. Although the acute PIGN has diffuse proliferative, focal segmental proliferative or mesangioproliferative patterns of glomerular injury, chronic or subacute infection-associated glomerulonephritis typically results in membranoproliferative appearance. PIGN has dominant C3 staining with frequent occurrence of subepithelial "humps" as well as subendothelial deposits. The immunoglobulin staining on immunofluorescence is typically weak, but immunoglobulin A-dominant PIGN is a recently defined entity often associated with staphylococcal infections. The wide spectrum of morphologic changes seen in PIGN poses a diagnostic challenge, especially if adequate clinical and serological data are lacking.
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Kaoutzanis C, Evangelakis E, Kokkinos C, Kaoutzanis G. Urgent aortic valve replacement for infective endocarditis during the 23rd week of pregnancy. Gen Thorac Cardiovasc Surg 2012; 61:296-300. [DOI: 10.1007/s11748-012-0140-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Accepted: 08/01/2012] [Indexed: 10/28/2022]
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Ghosh PS, Friedman NR, Ghosh D. Fever, lethargy, and leg weakness in a 9-month-old boy. Clin Pediatr (Phila) 2012; 51:808-11. [PMID: 22511192 DOI: 10.1177/0009922812441677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Partha S Ghosh
- Pediatric Neurology, Cleveland Clinic, Cleveland, OH 44195, USA.
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Leone S, Ravasio V, Durante-Mangoni E, Crapis M, Carosi G, Scotton PG, Barzaghi N, Falcone M, Chinello P, Pasticci MB, Grossi P, Utili R, Viale P, Rizzi M, Suter F. Epidemiology, characteristics, and outcome of infective endocarditis in Italy: the Italian Study on Endocarditis. Infection 2012; 40:527-35. [PMID: 22711599 DOI: 10.1007/s15010-012-0285-y] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2011] [Accepted: 06/05/2012] [Indexed: 12/30/2022]
Abstract
BACKGROUND The characteristics of patients with infective endocarditis (IE) vary significantly by region of the world. The aim of this study was to evaluate the contemporary epidemiology, characteristics, and outcome of IE in a large, nationwide cohort of Italian patients. METHODS We conducted a prospective, observational study at 24 medical centers in Italy, including all the consecutive patients with a definite or possible diagnosis of IE (modified Duke criteria) admitted from January 2004 through December 2009. A number of clinical variables were collected through an electronic case report form and analyzed to comprehensively delineate the features of IE. We report the data on patients with definite IE. RESULTS A total of 1,082 patients with definite IE were included. Of these, 753 (69.6%) patients had infection on a native valve, 277 (25.6%) on a prosthetic valve, and 52 (4.8%) on an implantable electronic device. Overall, community-acquired (69.2%) was more common than nosocomial (6.2%) or non-nosocomial (24.6%) health care-associated IE. Staphylococcus aureus was the most common pathogen (22.0%). In-hospital mortality was 15.1%. From the multivariate analysis, congestive heart failure (CHF), stroke, prosthetic valve infection, S. aureus, and health care-associated acquisition were independently associated with increased in-hospital mortality, while surgery was associated with decreased mortality. CONCLUSIONS The current mortality of IE remains high, and is mainly due to its complications, such as CHF and stroke.
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Affiliation(s)
- S Leone
- USC di Malattie Infettive, Ospedali Riuniti di Bergamo, Bergamo, Italy.
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Murakami T, Niwa K, Yoshinaga M, Nakazawa M. Factors associated with surgery for active endocarditis in congenital heart disease. Int J Cardiol 2012; 157:59-62. [PMID: 21176981 DOI: 10.1016/j.ijcard.2010.11.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2010] [Revised: 11/10/2010] [Accepted: 11/29/2010] [Indexed: 10/18/2022]
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Monagle P, Chan AKC, Goldenberg NA, Ichord RN, Journeycake JM, Nowak-Göttl U, Vesely SK. Antithrombotic therapy in neonates and children: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines. Chest 2012; 141:e737S-e801S. [PMID: 22315277 DOI: 10.1378/chest.11-2308] [Citation(s) in RCA: 950] [Impact Index Per Article: 79.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Neonates and children differ from adults in physiology, pharmacologic responses to drugs, epidemiology, and long-term consequences of thrombosis. This guideline addresses optimal strategies for the management of thrombosis in neonates and children. METHODS The methods of this guideline follow those described in the Methodology for the Development of Antithrombotic Therapy and Prevention of Thrombosis Guidelines: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines. RESULTS We suggest that where possible, pediatric hematologists with experience in thromboembolism manage pediatric patients with thromboembolism (Grade 2C). When this is not possible, we suggest a combination of a neonatologist/pediatrician and adult hematologist supported by consultation with an experienced pediatric hematologist (Grade 2C). We suggest that therapeutic unfractionated heparin in children is titrated to achieve a target anti-Xa range of 0.35 to 0.7 units/mL or an activated partial thromboplastin time range that correlates to this anti-Xa range or to a protamine titration range of 0.2 to 0.4 units/mL (Grade 2C). For neonates and children receiving either daily or bid therapeutic low-molecular-weight heparin, we suggest that the drug be monitored to a target range of 0.5 to 1.0 units/mL in a sample taken 4 to 6 h after subcutaneous injection or, alternatively, 0.5 to 0.8 units/mL in a sample taken 2 to 6 h after subcutaneous injection (Grade 2C). CONCLUSIONS The evidence supporting most recommendations for antithrombotic therapy in neonates and children remains weak. Studies addressing appropriate drug target ranges and monitoring requirements are urgently required in addition to site- and clinical situation-specific thrombosis management strategies.
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Affiliation(s)
- Paul Monagle
- Haematology Department, The Royal Children's Hospital, Department of Paediatrics, The University of Melbourne, Murdoch Children's Research Institute, Melbourne, VIC, Australia
| | - Anthony K C Chan
- Department of Pediatrics, McMaster University, Hamilton, ON, Canada
| | - Neil A Goldenberg
- Department of Pediatrics, Section of Hematology/Oncology/Bone Marrow Transplantation and Mountain States Regional Hemophilia and Thrombosis Center, University of Colorado, Aurora, CO
| | - Rebecca N Ichord
- Department of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA
| | - Janna M Journeycake
- Department of Pediatrics, University of Texas Southwestern Medical Center at Dallas, Dallas, TX
| | - Ulrike Nowak-Göttl
- Thrombosis and Hemostasis Unit, Institute of Clinical Chemistry, University Hospital Kiel, Kiel, Germany
| | - Sara K Vesely
- Department of Biostatistics and Epidemiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK.
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Nataloni M, Pergolini M, Rescigno G, Mocchegiani R. Prosthetic valve endocarditis. J Cardiovasc Med (Hagerstown) 2011; 11:869-83. [PMID: 20154632 DOI: 10.2459/jcm.0b013e328336ec9a] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Prosthetic valve endocarditis (PVE) is associated with a high mortality during the early and midterm follow-up despite diagnostic and therapeutic improvements; its incidence is increasing and reaches 20-30% of all infective endocarditis episodes. In this review, changes in epidemiology, microbiology, diagnosis and therapy that have evolved in the past few years are analyzed. Staphylococci (both Staphylococcus aureus and coagulase-negative Staphylococcus) have emerged as the most common cause of PVE and are associated with a severe prognosis. Moreover, diagnosis may often be difficult because of its complications and extracardiac manifestations; thus, a comprehensive assessment of the clinical, echocardiographic and laboratory data must be performed. Early PVE, comorbidity, severe heart failure and new prosthetic dehiscence are predictors of mortality. Therapy is not indicated by evidence-based recommendations but mostly on identification of the high-risk conditions. A PVE is a common indication for surgery, whereas medical treatment alone may be achieved in a few instances. Systematic prophylaxis should be used to prevent this severe complication of cardiac valve replacement.
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Affiliation(s)
- Maura Nataloni
- Outpatient Cardiology Service, Fabriano Hospital, Asur Marche, Italy
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Rao SL, Campbell DB, Haouzi-Judenherc AR. Echocardiographic recognition of mitral valve involvement in primary aortic valve endocarditis. Anesth Analg 2010; 112:59-61. [PMID: 20966435 DOI: 10.1213/ane.0b013e3181fe756b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Srikantha L Rao
- Department of Anesthesiology, Penn State Milton S. Hershey Medical Center, Penn State College of Medicine, Hershey, Pennsylvania 17033, USA.
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Abstract
Acute infective endocarditis is a complex disease with changing epidemiology and a rapidly evolving knowledge base. To consistently achieve optimal outcomes in the management of infective endocarditis, the clinical team must have an understanding of the epidemiology, microbiology, and natural history of infective endocarditis, as well as a grasp of guiding principles of diagnosis and medical and surgical management. The focus of this review is acute infective endocarditis, though many studies of diagnosis and treatment do not differentiate between acute and subacute disease, and indeed many principles of diagnosis and management of infective endocarditis for acute and subacute disease are identical.
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Affiliation(s)
- Jay R McDonald
- Infectious Disease Section, Specialty Care Service, St. Louis VA Medical Center, 915 N Grand Boulevard, Mailcode 151/JC, St. Louis, MO 63106, USA.
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Infective endocarditis caused by anaerobic bacteria. Arch Cardiovasc Dis 2008; 101:665-76. [DOI: 10.1016/j.acvd.2008.08.008] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2008] [Revised: 08/05/2008] [Accepted: 08/18/2008] [Indexed: 11/22/2022]
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Venkatesan C, Wainwright MS. Pediatric endocarditis and stroke: a single-center retrospective review of seven cases. Pediatr Neurol 2008; 38:243-7. [PMID: 18358401 PMCID: PMC2409276 DOI: 10.1016/j.pediatrneurol.2007.12.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2007] [Revised: 10/05/2007] [Accepted: 12/12/2007] [Indexed: 11/17/2022]
Abstract
The acute management of strokes in children with infective endocarditis is limited by the paucity of published data on their clinical course and outcomes. Our retrospective study at an urban tertiary-care academic center characterized the clinical course of seven pediatric patients with endocarditis and subsequent cerebral infarcts. Among 115 patients with endocarditis, a stroke occurred in seven. Four patients manifested congenital heart disease. In six patients, the stroke occurred in the distribution of the middle cerebral artery, with no preference for the left or right hemisphere. The most common presenting sign was focal weakness. Three patients manifested mycotic aneurysms, all of which were successfully repaired. Two patients received aspirin therapy, with no adverse effects. All patients survived, but neurologic recovery was variable. The two youngest patients (aged 3 and 14 weeks) demonstrated the longest periods of hospitalization, with the most severe neurologic impairment. These findings suggest that children may have better outcomes than adults after a stroke secondary to bacterial endocarditis. Routine surveillance for mycotic aneurysms in patients with new neurologic deficits, and the use of aspirin, should be considered in the medical management.
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Affiliation(s)
- Charu Venkatesan
- Division of Neurology, Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60614, USA.
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Abstract
Echocardiography is a most useful bedside tool to help in the diagnosis and subsequent management of patients with infective endocarditis. Transesophageal echocardiography provides complementary and often incremental information necessary in making a diagnosis, and in identifying associated intracardiac complications. This chapter will focus on the role of echocardiography in the diagnosis and management of infective endocarditis.
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Abstract
Infective endocarditis (IE) is estimated to have an incidence of five to seven cases per 100,000 person-years. Although not a common clinical entity, IE is associated with substantial morbidity and risk of mortality. IE, especially infections due to Staphylococcus aureus, are increasingly healthcare-associated infections. Despite significant advances in diagnosis and management, mortality from IE has changed little since the availability of penicillin; however, this lack of improvement in mortality is likely due to an increasing number of infections from more virulent and drug-resistant pathogens coupled with infections that occur in patients with other comorbidities and those associated with prosthetic valves. Surgery is an important part of therapy for many patients, but surprisingly, little evidence is available to help clinicians determine which patients will benefit most from surgical therapy for the management of IE.
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Affiliation(s)
- Patricia D Brown
- Wayne State University School of Medicine, Detroit Receiving Hospital, 5S, 4201 St. Antoine, Detroit, MI 48201, USA.
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Abstract
Most infective processes are straightforward and can be diagnosed from bacterial findings in a single test. IE does not always follow this tenet, so establishing the diagnosis can be difficult. The salient features of IE may present atypically or be obscured by the presence of preexisting and coexisting diseases. Flulike symptoms may mask the beginning of this devastating disease. Early diagnosis of IE is important because of its high risk of morbidity and mortality. Management of the patient who has IE is complex and requires interventions by infectious disease specialists, cardiologists, respiratory therapists, and critical care nurses to address the many multifaceted complications. Early evaluation, diagnostic validation, multidisciplinary management, prompt pharmaceutical initiation, and intense critical care nursing intervention are necessary to reduce the probability of long-standing complications and to improve patient outcomes.
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Affiliation(s)
- Maria A Smith
- School of Nursing, Middle Tennessee State University, 1500 Greenland Drive, P.O. Box 81, Murfreesboro, TN 37132, USA.
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Pritisanac A, Hannekum A, Gulbins H. A fibrous membrane causing left ventricular outflow tract stenosis as the result of endocarditis. J Thorac Cardiovasc Surg 2006; 131:1401-2. [PMID: 16733181 DOI: 10.1016/j.jtcvs.2005.11.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2005] [Accepted: 11/16/2005] [Indexed: 10/24/2022]
Affiliation(s)
- Anita Pritisanac
- Department of Cardiothoracic Surgery, University of Ulm, Germany.
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Baddour LM, Wilson WR, Bayer AS, Fowler VG, Bolger AF, Levison ME, Ferrieri P, Gerber MA, Tani LY, Gewitz MH, Tong DC, Steckelberg JM, Baltimore RS, Shulman ST, Burns JC, Falace DA, Newburger JW, Pallasch TJ, Takahashi M, Taubert KA. Infective endocarditis: diagnosis, antimicrobial therapy, and management of complications: a statement for healthcare professionals from the Committee on Rheumatic Fever, Endocarditis, and Kawasaki Disease, Council on Cardiovascular Disease in the Young, and the Councils on Clinical Cardiology, Stroke, and Cardiovascular Surgery and Anesthesia, American Heart Association: endorsed by the Infectious Diseases Society of America. Circulation 2006; 111:e394-434. [PMID: 15956145 DOI: 10.1161/circulationaha.105.165564] [Citation(s) in RCA: 912] [Impact Index Per Article: 50.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Despite advances in medical, surgical, and critical care interventions, infective endocarditis remains a disease that is associated with considerable morbidity and mortality. The continuing evolution of antimicrobial resistance among common pathogens that cause infective endocarditis creates additional therapeutic issues for physicians to manage in this potentially life-threatening illness. METHODS AND RESULTS This work represents the third iteration of an infective endocarditis "treatment" document developed by the American Heart Association under the auspices of the Committee on Rheumatic Fever, Endocarditis, and Kawasaki Disease, Council on Cardiovascular Disease of the Young. It updates recommendations for diagnosis, treatment, and management of complications of infective endocarditis. A multidisciplinary committee of experts drafted this document to assist physicians in the evolving care of patients with infective endocarditis in the new millennium. This extensive document is accompanied by an executive summary that covers the key points of the diagnosis, antimicrobial therapy, and management of infective endocarditis. For the first time, an evidence-based scoring system that is used by the American College of Cardiology and the American Heart Association was applied to treatment recommendations. Tables also have been included that provide input on the use of echocardiography during diagnosis and treatment of infective endocarditis, evaluation and treatment of culture-negative endocarditis, and short-term and long-term management of patients during and after completion of antimicrobial treatment. To assist physicians who care for children, pediatric dosing was added to each treatment regimen. CONCLUSIONS The recommendations outlined in this update should assist physicians in all aspects of patient care in the diagnosis, medical and surgical treatment, and follow-up of infective endocarditis, as well as management of associated complications. Clinical variability and complexity in infective endocarditis, however, dictate that these guidelines be used to support and not supplant physician-directed decisions in individual patient management.
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Nieminen MS, Böhm M, Cowie MR, Drexler H, Filippatos GS, Jondeau G, Hasin Y, López-Sendón J, Mebazaa A, Metra M, Rhodes A, Swedberg K. Guías de Práctica Clínica sobre el diagnóstico y tratamiento de la insuficiencia cardíaca aguda. Versión resumida. Rev Esp Cardiol 2005; 58:389-429. [PMID: 15847736 DOI: 10.1157/13073896] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Markku S Nieminen
- Division of Cardiology, Helsinki University Central Hospital, Helsinki, Finland. markku.nieminen.hus.fi
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Ruth AJ, Kitching AR, Li M, Semple TJ, Timoshanko JR, Tipping PG, Holdsworth SR. An IL-12-independent role for CD40-CD154 in mediating effector responses: studies in cell-mediated glomerulonephritis and dermal delayed-type hypersensitivity. THE JOURNAL OF IMMUNOLOGY 2004; 173:136-44. [PMID: 15210767 DOI: 10.4049/jimmunol.173.1.136] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Crescentic glomerulonephritis (GN) results from IL-12-driven Th1-directed cell-mediated responses (akin to delayed-type hypersensitivity (DTH)) directed against glomerular Ags. CD40-CD154 interactions are critical for IL-12 production and Th1 polarization of immune responses. Crescentic anti-glomerular basement membrane GN was induced in C57BL/6 (wild-type (WT)) mice (sensitized to sheep globulin) by planting this Ag (as sheep anti-mouse glomerular basement membrane globulin) in their glomeruli. Crescentic GN did not develop in CD40(-/-) mice due to significantly reduced nephritogenic Th1 responses. IL-12 was administered to CD40(-/-) mice with GN to dissect interactions between IL-12 and CD40 in inducing nephritogenic immunity and injury. Administration of IL-12 to CD40(-/-) mice restored Th cell IFN-gamma production, and up-regulated intrarenal chemokines and glomerular T cell and macrophage accumulation compared with WT control mice. Despite this, renal macrophages were not activated and renal injury and dermal DTH were not restored. Thus, CD40-directed IL-12 drives Th1 generation and effector cell recruitment but CD40 is required for activation. To test this hypothesis, activated OT-II OVA-specific CD4(+) cells and OVA(323-339)-loaded nonresponsive APCs were transferred into footpads of WT, CD40(-/-), and macrophage-depleted WT mice. WT mice developed significant DTH compared with CD40(-/-) and macrophage-depleted WT mice. This study demonstrated that CD40-induced IL-12 is required for generation of systemic Th1 immunity to nephritogenic Ags, and that IL-12 enhances Th1 effector cell recruitment to peripheral sites of Ag presentation via generation of local chemokines. Effector cell activation, renal DTH-like injury, and dermal DTH require direct Th1 CD154/macrophage CD40 interactions.
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Affiliation(s)
- Amanda-Jane Ruth
- Centre for Inflammatory Diseases, Department of Medicine, Monash University, Monash Medical Centre, 246 Clayton Road, Clayton, Victoria 3168, Australia
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