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Treves B, Sonnini E, La Russa R, Del Duca F, Ghamlouch A, De Matteis A, Trignano C, Marchal JA, Carrillo E, Napoletano G, Maiese A. Can Hemorrhagic Stroke Genetics Help Forensic Diagnosis in Pediatric Age (<5 Years Old)? Genes (Basel) 2024; 15:618. [PMID: 38790247 PMCID: PMC11120992 DOI: 10.3390/genes15050618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 05/06/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
When stroke occurs in pediatric age, it might be mistakenly interpreted as non-accidental head injury (NAHI). In these situations, a multidisciplinary approach is fundamental, including a thorough personal and familial history, along with accurate physical examination and additional investigations. Especially when the clinical picture is uncertain, it is important to remember that certain genetic conditions can cause bleeding inside the brain, which may resemble NAHI. Pediatric strokes occurring around the time of birth can also be an initial sign of undiagnosed genetic disorders. Hence, it is crucial to conduct a thorough evaluation, including genetic testing, when there is a suspicion of NAHI but the symptoms are unclear. In these cases, a characteristic set of symptoms is often observed. This study aims to summarize some of the genetic causes of hemorrhagic stroke in the pediatric population, thus mimicking non-accidental head injury, considering elements that can be useful in characterizing pathologies. A systematic review of genetic disorders that may cause ICH in children was carried out according to the Preferred Reporting Item for Systematic Review (PRISMA) standards. We selected 10 articles regarding the main genetic diseases in stroke; we additionally selected 11 papers concerning patients with pediatric stroke and genetic diseases, or studies outlining the characteristics of stroke in these patients. The disorders we identified were Moyamoya disease (MMD), COL4A1, COL4A2 pathogenic variant, Ehlers-Danlos syndrome (E-D), neurofibromatosis type 1 (Nf1), sickle cell disease (SCD), cerebral cavernous malformations (CCM), hereditary hemorrhagic telangiectasia (HHT) and Marfan syndrome. In conclusion, this paper provides a comprehensive overview of the genetic disorders that could be tested in children when there is a suspicion of NAHI but an unclear picture.
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Affiliation(s)
- Biancamaria Treves
- Department of Anatomical, Histological, Forensic and Orthopaedic Sciences, Sapienza University of Rome, 00161 Rome, Italy; (B.T.); (F.D.D.); (A.G.); (A.D.M.); (G.N.)
| | - Elena Sonnini
- Dipartimento Scienze della Vita e Sanità Pubblica, Medicina Genomica, Università Cattolica del Sacro Cuore, 00168 Rome, Italy;
| | - Raffaele La Russa
- Department of Clinical Medicine, Public Health, Life Sciences, and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy
| | - Fabio Del Duca
- Department of Anatomical, Histological, Forensic and Orthopaedic Sciences, Sapienza University of Rome, 00161 Rome, Italy; (B.T.); (F.D.D.); (A.G.); (A.D.M.); (G.N.)
| | - Alessandro Ghamlouch
- Department of Anatomical, Histological, Forensic and Orthopaedic Sciences, Sapienza University of Rome, 00161 Rome, Italy; (B.T.); (F.D.D.); (A.G.); (A.D.M.); (G.N.)
| | - Alessandra De Matteis
- Department of Anatomical, Histological, Forensic and Orthopaedic Sciences, Sapienza University of Rome, 00161 Rome, Italy; (B.T.); (F.D.D.); (A.G.); (A.D.M.); (G.N.)
| | - Claudia Trignano
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43c, 07100 Sassari, Italy;
| | - Juan Antonio Marchal
- Centre for Biomedical Research (CIBM), Biopathology and Regenerative Medicine Institute (IBIMER), University of Granada, 18016 Granada, Spain; (J.A.M.); (E.C.)
- Instituto de Investigación Biosanitaria ibs. GRANADA, University of Granada, 18071 Granada, Spain
- Excellence Research Unit “Modeling Nature” (MNat), University of Granada, 18016 Granada, Spain
- Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, 18016 Granada, Spain
| | - Esmeralda Carrillo
- Centre for Biomedical Research (CIBM), Biopathology and Regenerative Medicine Institute (IBIMER), University of Granada, 18016 Granada, Spain; (J.A.M.); (E.C.)
- Instituto de Investigación Biosanitaria ibs. GRANADA, University of Granada, 18071 Granada, Spain
- Excellence Research Unit “Modeling Nature” (MNat), University of Granada, 18016 Granada, Spain
- Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, 18016 Granada, Spain
| | - Gabriele Napoletano
- Department of Anatomical, Histological, Forensic and Orthopaedic Sciences, Sapienza University of Rome, 00161 Rome, Italy; (B.T.); (F.D.D.); (A.G.); (A.D.M.); (G.N.)
| | - Aniello Maiese
- Department of Surgical Pathology, Medical, Molecular and Critical Area, Institute of Legal Medicine, University of Pisa, 56126 Pisa, Italy
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Trevise LA, Lopes Vieira Pinto MP, Hasselmann G, Lammoglia BC, Leal TP, Salles Rosa Neto N. Multifocal Abscesses, Necrotizing Fasciitis, Iron Deficiency Anemia, and Hypophosphatemia Induced by Ferric Carboxymaltose Infusions: Report of a Case of Hereditary Hemorrhagic Telangiectasia. Cureus 2023; 15:e44020. [PMID: 37746404 PMCID: PMC10517736 DOI: 10.7759/cureus.44020] [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: 08/23/2023] [Indexed: 09/26/2023] Open
Abstract
Hereditary hemorrhagic telangiectasia (HHT) is a rare autosomal dominant vascular dysplasia in which disrupted angiogenesis leads to increased formation of mucocutaneous telangiectasias or major vascular malformations. Iron deficiency anemia and recurrent abscesses are commonly reported in these patients, reinforcing screening and targeted therapies for these conditions. We report a 50-year-old man with HHT affected by repeated episodes of iron deficiency anemia secondary to recurrent epistaxis requiring frequent intravenous iron infusions. He eventually developed hypophosphatemia and hyperphosphaturia secondary to ferric carboxymaltose. He also had a history of recurrent multifocal abscesses, including a severe presentation of necrotizing fasciitis, requiring multiple surgical interventions. Despite the identification of hypogammaglobulinemia, only after consistent dental treatment and antibiotic prophylaxis did the abscesses stop recurring. We highlight the need for careful consideration of all possible complications inherent to the disease itself but also those related to comorbidities or existing treatments.
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Affiliation(s)
| | | | | | | | | | - Nilton Salles Rosa Neto
- Center for Rare and Immune Disorders, Hospital Nove de Julho, São Paulo, BRA
- Rheumatology, Universidade Santo Amaro, São Paulo, BRA
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Matsuo M, Doi T, Katsuki M, Yoshimura Y, Ito H, Fukahara K, Yoshimura N, Yamazaki M. Association between intraoperative pulmonary artery pressure and cardiovascular complications after off-pump coronary artery bypass surgery: a single-center observational study. BMC Anesthesiol 2023; 23:114. [PMID: 37024786 PMCID: PMC10077666 DOI: 10.1186/s12871-023-02057-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 03/20/2023] [Indexed: 04/08/2023] Open
Abstract
BACKGROUND The impact of intraoperative pulmonary hemodynamics on prognosis after off-pump coronary artery bypass (OPCAB) surgery remains unknown. In this study, we examined the association between intraoperative vital signs and the development of major adverse cardiovascular events (MACE) during hospitalization or within 30 days postoperatively. METHODS This retrospective study analyzed data from a university hospital. The study cohort comprised consecutive patients who underwent isolated OPCAB surgery between November 2013 and July 2021. We calculated the mean and coefficient of variation of vital signs obtained from the intra-arterial catheter, pulmonary artery catheter, and pulse oximeter. The optimal cut-off was defined as the receiver operating characteristic curve (ROC) with the largest Youden index (Youden index = sensitivity + specificity - 1). Multivariate logistic regression analysis ROC curves were used to adjust all baseline characteristics that yielded P values of < 0.05. RESULTS In total, 508 patients who underwent OPCAB surgery were analyzed. The mean patient age was 70.0 ± 9.7 years, and 399 (79%) were male. There were no patients with confirmed or suspected preoperative pulmonary hypertension. Postoperative MACE occurred in 32 patients (heart failure in 16, ischemic stroke in 16). The mean pulmonary artery pressure (PAP) was significantly higher in patients with than without MACE (19.3 ± 3.0 vs. 16.7 ± 3.4 mmHg, respectively; absolute difference, 2.6 mmHg; 95% confidence interval, 1.5 to 3.8). The area under the ROC curve of PAP for the prediction of MACE was 0.726 (95% confidence interval, 0.645 to 0.808). The optimal mean PAP cut-off was 18.8 mmHg, with a specificity of 75.8% and sensitivity of 62.5% for predicting MACE. After multivariate adjustments, high PAP remained an independent risk factor for MACE. CONCLUSIONS Our findings provide the first evidence that intraoperative borderline pulmonary hypertension may affect the prognosis of patients undergoing OPCAB surgery. Future large-scale prospective studies are needed to verify the present findings.
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Affiliation(s)
- Mitsuhiro Matsuo
- Department of Anesthesiology, Faculty of Medicine, University of Toyama, 2630 Sugitani, 930-0194, Toyama, Japan.
| | - Toshio Doi
- First Department of Surgery, University of Toyama, Toyama, Japan
| | - Masahito Katsuki
- Department of Neurosurgery, Itoigawa General Hospital, Itoigawa, Japan
| | | | - Hisakatsu Ito
- Department of Anesthesiology, Faculty of Medicine, University of Toyama, 2630 Sugitani, 930-0194, Toyama, Japan
| | - Kazuaki Fukahara
- First Department of Surgery, University of Toyama, Toyama, Japan
| | - Naoki Yoshimura
- First Department of Surgery, University of Toyama, Toyama, Japan
| | - Mitsuaki Yamazaki
- Department of Anesthesiology, Faculty of Medicine, University of Toyama, 2630 Sugitani, 930-0194, Toyama, Japan
- Department of Anesthesiology, Toyama Nishi General Hospital, Toyama, Japan
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4
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Defarges A, Stiller J, Solomon JA. Gastrointestinal angiodysplasias diagnosed using video capsule endoscopy in 15 dogs. J Vet Intern Med 2023; 37:428-436. [PMID: 36866722 DOI: 10.1111/jvim.16677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 02/16/2023] [Indexed: 03/04/2023] Open
Abstract
BACKGROUND Angiodysplasia (AGD) is rarely diagnosed in dogs with gastrointestinal bleeding (GIB) and is reported in case reports in dogs. OBJECTIVE Describe signalment, clinical and diagnostic features of dogs with gastrointestinal (GI) AGD diagnosed by video capsule endoscopy (VCE). ANIMALS Dogs with overt or suspected GIB which underwent VCE. METHODS Dogs for which a VCE was submitted for overt or suspected GIB from 2016 to 2021 were selected retrospectively. Medical records and full-length VCE recordings where AGDs were initially detected, were reviewed by 2 trained internists. AGD was considered definitive if 2 readers detected it. Signalment, clinical signs, blood work, medications, concurrent diseases, findings of previous conventional endoscopy, and surgical exploration (if applicable) of dogs with AGD were recorded. RESULTS Definitive AGD was diagnosed in 15 of 291 (5%) dogs (12 males, 3 females). Twelve (80%) had overt GIB, 11 (73%) had hematochezia, and 6 (40%) had microcytic and hypochromic anemia. AGD was missed by conventional endoscopy in 9/9 dogs and exploratory surgery in 3/3 dogs. Thirteen capsules were administered by mouth (1 incomplete study), and 2 via endoscopy directly into the duodenum. AGD was visualized in the stomach of 3 dogs, in the small intestine of 4, and in the colon of 13 dogs. CONCLUSION AND CLINICAL IMPORTANCE Although rare, AGD should be considered in dogs with suspected GIB after a negative conventional endoscopy or surgical exporation. Video capsuel endoscopy appears to be a sensitive test to identify AGD within the GI tract.
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Affiliation(s)
- Alice Defarges
- University of Guelph, Ontario Veterinary College, Guelph, Ontario, Canada
| | - Jenny Stiller
- Universität Leipzig Veterinärmedizinische Fakultät Klinik, Leipzig, Germany
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5
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Abstract
Vascular and lymphatic malformations represent a challenge for clinicians. The identification of inherited and somatic mutations in important signaling pathways, including the PI3K (phosphoinositide 3-kinase)/AKT (protein kinase B)/mTOR (mammalian target of rapamycin), RAS (rat sarcoma)/RAF (rapidly accelerated fibrosarcoma)/MEK (mitogen-activated protein kinase kinase)/ERK (extracellular signal-regulated kinases), HGF (hepatocyte growth factor)/c-Met (hepatocyte growth factor receptor), and VEGF (vascular endothelial growth factor) A/VEGFR (vascular endothelial growth factor receptor) 2 cascades has led to the evaluation of tailored strategies with preexisting cancer drugs that interfere with these signaling pathways. The era of theranostics has started for the treatment of vascular anomalies. Registration: URL: https://www.clinicaltrialsregister.eu; Unique identifier: 2015-001703-32.
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Affiliation(s)
- Angela Queisser
- Human Molecular Genetics, de Duve Institute, University of Louvain, Brussels, Belgium (A.Q., L.M.B., M.V.), University of Louvain, Brussels, Belgium (M.V.)
| | - Emmanuel Seront
- Centre for Vascular Anomalies, Division of Plastic Surgery, Cliniques Universitaires Saint-Luc Brussels, Belgium (E.S., L.M.B., M.V.).,Institut Roi Albert II, Department of Medical Oncology, Cliniques Universitaires Saint-Luc, Brussels, Belgium (E.S.).,VASCERN VASCA European Reference Centre Cliniques Universitaires Saint-Luc, Brussels, Belgium (E.S., L.M.B., M.V.)
| | - Laurence M Boon
- Human Molecular Genetics, de Duve Institute, University of Louvain, Brussels, Belgium (A.Q., L.M.B., M.V.), University of Louvain, Brussels, Belgium (M.V.).,Centre for Vascular Anomalies, Division of Plastic Surgery, Cliniques Universitaires Saint-Luc Brussels, Belgium (E.S., L.M.B., M.V.).,VASCERN VASCA European Reference Centre Cliniques Universitaires Saint-Luc, Brussels, Belgium (E.S., L.M.B., M.V.)
| | - Miikka Vikkula
- Human Molecular Genetics, de Duve Institute, University of Louvain, Brussels, Belgium (A.Q., L.M.B., M.V.), University of Louvain, Brussels, Belgium (M.V.).,Centre for Vascular Anomalies, Division of Plastic Surgery, Cliniques Universitaires Saint-Luc Brussels, Belgium (E.S., L.M.B., M.V.).,University of Louvain, Brussels, Belgium (M.V.).,University of Louvain, Brussels, Belgium (M.V.).,Walloon Excellence in Life Sciences and Biotechnology (WELBIO), University of Louvain, Brussels, Belgium (M.V.).,VASCERN VASCA European Reference Centre Cliniques Universitaires Saint-Luc, Brussels, Belgium (E.S., L.M.B., M.V.)
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6
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Guest W, Krings T. Brain Arteriovenous Malformations: The Role of Imaging in Treatment Planning and Monitoring Response. Neuroimaging Clin N Am 2021; 31:205-222. [PMID: 33902875 DOI: 10.1016/j.nic.2020.12.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Brain arteriovenous malformations (AVMs) are characterized by shunting between pial arteries and cortical or deep veins, with the presence of an intervening nidus of tortuous blood vessels. These lesions present a therapeutic challenge, because their natural history entails a risk of intracranial hemorrhage, but treatment may cause significant morbidity. In this article, imaging features of AVMs on MR imaging and catheter angiography are reviewed to stratify the risk of hemorrhage and guide appropriate management. The angioarchitecture of AVMs may evolve over time, spontaneously or in response to treatment, necessitating ongoing imaging surveillance.
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Affiliation(s)
- Will Guest
- Department of Neuroradiology, University of Toronto, Toronto Western Hospital, 399 Bathurst Street, Toronto, Ontario M5T 2S8, Canada
| | - Timo Krings
- Department of Neuroradiology, University of Toronto, Toronto Western Hospital, 399 Bathurst Street, Toronto, Ontario M5T 2S8, Canada.
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7
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Endoglin in the Spotlight to Treat Cancer. Int J Mol Sci 2021; 22:ijms22063186. [PMID: 33804796 PMCID: PMC8003971 DOI: 10.3390/ijms22063186] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/06/2021] [Accepted: 03/17/2021] [Indexed: 01/02/2023] Open
Abstract
A spotlight has been shone on endoglin in recent years due to that fact of its potential to serve as both a reliable disease biomarker and a therapeutic target. Indeed, endoglin has now been assigned many roles in both physiological and pathological processes. From a molecular point of view, endoglin mainly acts as a co-receptor in the canonical TGFβ pathway, but also it may be shed and released from the membrane, giving rise to the soluble form, which also plays important roles in cell signaling. In cancer, in particular, endoglin may contribute to either an oncogenic or a non-oncogenic phenotype depending on the cell context. The fact that endoglin is expressed by neoplastic and non-neoplastic cells within the tumor microenvironment suggests new possibilities for targeted therapies. Here, we aimed to review and discuss the many roles played by endoglin in different tumor types, as well as the strong evidence provided by pre-clinical and clinical studies that supports the therapeutic targeting of endoglin as a novel clinical strategy.
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8
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Bulwa Z, Dresser LP, Clarke J, Mendelson S. Mystery Case: Clinical Reasoning: Recurrent cerebral ischemia during pregnancies. Neurology 2020; 95:e2453-e2457. [PMID: 32907962 DOI: 10.1212/wnl.0000000000010829] [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)
- Zachary Bulwa
- From the Department of Neurology (Z.B., L.P.D., S.M), University of Chicago, IL; and Leonard M. Miller School of Medicine (J.C.), University of Miami, FL.
| | - Laura P Dresser
- From the Department of Neurology (Z.B., L.P.D., S.M), University of Chicago, IL; and Leonard M. Miller School of Medicine (J.C.), University of Miami, FL
| | - Jamie Clarke
- From the Department of Neurology (Z.B., L.P.D., S.M), University of Chicago, IL; and Leonard M. Miller School of Medicine (J.C.), University of Miami, FL
| | - Scott Mendelson
- From the Department of Neurology (Z.B., L.P.D., S.M), University of Chicago, IL; and Leonard M. Miller School of Medicine (J.C.), University of Miami, FL
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9
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Kang HC, Martins Pereira MA, Silva LNL, Oliveira LC, Márvila IS. Hereditary Hemorrhagic Telangiectasia in a Sickle Cell Trait Patient: A Report of a Rare Case with Use of Nuclear Medicine, and a Literature Review. AMERICAN JOURNAL OF CASE REPORTS 2020; 21:e923355. [PMID: 32614805 PMCID: PMC7347035 DOI: 10.12659/ajcr.923355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Patient: Female, 49-year-old Final Diagnosis: Hereditary haemorrhagic telangiectasia Symptoms: Anemia • dyspnea • epistaxis • lipothymia • melena • weakness Medication:— Clinical Procedure: Electrofulguration Specialty: Gastroenterology and Hepatology • Genetics • Radiology
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Affiliation(s)
- Hye Chung Kang
- Department of Pathology, Fluminense Federal University, Niterói, RJ, Brazil
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10
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Sancho Saldaña A, Lambea Gil Á, Sánchez Marín B, Gazulla J. Convexity subarachnoid haemorrhage secondary to hereditary haemorrhagic telangiectasia. NEUROLOGÍA (ENGLISH EDITION) 2020. [DOI: 10.1016/j.nrleng.2018.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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11
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Hemorragia subaracnoidea de la convexidad cerebral causada por telangiectasia hereditaria hemorrágica. Neurologia 2020; 35:432-433. [DOI: 10.1016/j.nrl.2018.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 03/28/2018] [Accepted: 04/15/2018] [Indexed: 11/20/2022] Open
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12
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McCann MD, Newlon C, Krawiec C. Hypoxemia without Respiratory Distress: Hereditary Hemorrhagic Telangiectasia in a Child. J Pediatr Intensive Care 2020; 10:155-158. [PMID: 33884218 DOI: 10.1055/s-0040-1710499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 04/08/2020] [Indexed: 10/24/2022] Open
Abstract
Hereditary hemorrhagic telangiectasia (HHT) is an underrecognized genetic disorder of vascular development in pediatric patients. Its presentation can range from mild cutaneous findings to life-threatening hemorrhage from arteriovenous malformations. Clinical diagnosis can be challenging in the pediatric population as disease manifestations evolve over time and may be difficult to identify in younger patients. This case highlights how nonspecific symptoms and signs in the preanesthesia period can be misleading, potentially placing a patient with unrecognized HHT at risk for significant morbidity and mortality.
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Affiliation(s)
- Michael D McCann
- Department of Pediatrics, Penn State Hershey Children's Hospital, Pennsylvania, United States
| | - Claire Newlon
- Department of Pediatrics, Penn State Hershey Children's Hospital, Pennsylvania, United States
| | - Conrad Krawiec
- Department of Pediatrics, Pediatric Critical Care Medicine, Penn State Hershey Children's Hospital, Pennsylvania, United States
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13
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Brinjikji W, Wood CP, Iyer VN. Mystery Case: Missed diagnosis of hereditary hemorrhagic telangiectasia presenting with recurrent ischemia. Neurology 2019; 92:1068-1069. [PMID: 31133563 DOI: 10.1212/wnl.0000000000007568] [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)
- Waleed Brinjikji
- From the Departments of Radiology (W.B., C.P.W.), Neurosurgery (W.B.), and Pulmonary and Critical Care Medicine (V.N.I.), Mayo Clinic, Rochester, MN.
| | - Christopher P Wood
- From the Departments of Radiology (W.B., C.P.W.), Neurosurgery (W.B.), and Pulmonary and Critical Care Medicine (V.N.I.), Mayo Clinic, Rochester, MN
| | - Vivek N Iyer
- From the Departments of Radiology (W.B., C.P.W.), Neurosurgery (W.B.), and Pulmonary and Critical Care Medicine (V.N.I.), Mayo Clinic, Rochester, MN
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14
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Dichgans M, Pulit SL, Rosand J. Stroke genetics: discovery, biology, and clinical applications. Lancet Neurol 2019; 18:587-599. [PMID: 30975520 DOI: 10.1016/s1474-4422(19)30043-2] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 01/21/2019] [Accepted: 01/24/2019] [Indexed: 02/07/2023]
Abstract
Stroke, a leading cause of long-term disability and death worldwide, has a heritable component. Recent gene discovery efforts have expanded the number of known single-gene disorders associated with stroke and have linked common variants at approximately 35 genetic loci to stroke risk. These discoveries have highlighted novel mechanisms and pathways implicated in stroke related to large artery atherosclerosis, cardioembolism, and small vessel disease, and defined shared genetic influences with related vascular traits. Genetics has also successfully established causal relationships with risk factors and holds promise for prioritising targets for exploration in clinical trials. Genome-wide polygenic scores enable the identification of high-risk individuals before the emergence of vascular risk factors. Challenges ahead include a better understanding of rare variants and ancestral differences for integration of genetics into precision medicine, integration with other omics data, uncovering the genetic factors that govern stroke recurrence and stroke outcome, and the conversion of genetic discoveries to novel therapies.
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Affiliation(s)
- Martin Dichgans
- Institute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians-Universität, Munich, Germany; German Center for Neurodegenerative Diseases, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany.
| | - Sara L Pulit
- Department of Genetics, Centre for Molecular Medicine, University Medical Centre Utrecht, Utrecht, Netherlands; Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Oxford University, Oxford, UK; Program in Medical Population and Genetics, Broad Institute, Cambridge, MA, USA
| | - Jonathan Rosand
- Program in Medical Population and Genetics, Broad Institute, Cambridge, MA, USA; Henry and Allison McCance Center for Brain Health, and Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
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15
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Spinal Cord Hemorrhage. J Stroke Cerebrovasc Dis 2018; 27:1435-1446. [DOI: 10.1016/j.jstrokecerebrovasdis.2018.02.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 01/31/2018] [Accepted: 02/08/2018] [Indexed: 12/13/2022] Open
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16
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Bari O, Cohen PR. Hereditary hemorrhagic telangiectasia and pregnancy: potential adverse events and pregnancy outcomes. Int J Womens Health 2017; 9:373-378. [PMID: 28603431 PMCID: PMC5457180 DOI: 10.2147/ijwh.s131585] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Hereditary hemorrhagic telangiectasia (HHT) is an autosomal dominant condition with a prevalence of ~1 in 5,000 individuals. The pathophysiology of this condition centers on the lack of capillary beds between arterioles and venules, leading to direct contact between these vessels. This results in telangiectases on characteristic locations such as the face, fingers, mouth, and nasal mucosa. Visceral arteriovenous malformations (AVMs) are also observed in many patients, and these are most commonly seen in the brain, gastrointestinal tract, and lungs. Liver AVMs are present in many patients with HHT, though these individuals are usually asymptomatic; however, liver AVMs may lead to serious complications, such as high output cardiac failure. Diagnosis of HHT hinges upon fulfilling three out of four criteria: family history of the condition, mucocutaneous telangiectases, spontaneous and recurrent episodes of epistaxis, and visceral AVMs. Management is guided by international consensus guidelines and targets patients’ specific AVMs. Prognosis is good, though severe complications including hemorrhage and paradoxical emboli are possible. Novel therapeutics are being explored in clinical trials; bevacizumab and pazopanib inhibit angiogenesis, while thalidomide bolsters blood vessel maturation. Pregnancy in patients with HHT is considered high risk. While the majority of pregnancies proceed normally, severe complications have been reported in some women with HHT; these include heart failure, intracranial hemorrhage, pulmonary hemorrhage, and stroke. Such complications occur most often in the second and third trimesters when maternal changes such as peripheral vasodilation and increased cardiac output are at their maximum. Awareness of the diagnosis of HHT has been associated with improved outcomes in pregnancy. Management guidelines for pregnant patients with HHT are reviewed.
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Affiliation(s)
- Omar Bari
- School of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Philip R Cohen
- Department of Dermatology, University of California San Diego, La Jolla, CA, USA
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Khincha PP, Bertuch AA, Agarwal S, Townsley DM, Young NS, Keel S, Shimamura A, Boulad F, Simoneau T, Justino H, Kuo C, Artandi S, McCaslin C, Cox DW, Chaffee S, Collins BF, Giri N, Alter BP, Raghu G, Savage SA. Pulmonary arteriovenous malformations: an uncharacterised phenotype of dyskeratosis congenita and related telomere biology disorders. Eur Respir J 2017; 49:13993003.01640-2016. [PMID: 27824607 DOI: 10.1183/13993003.01640-2016] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 09/07/2016] [Indexed: 11/05/2022]
Affiliation(s)
- Payal P Khincha
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | | | - Suneet Agarwal
- Division of Haematology/Oncology, Boston Children's Hospital, Boston, MA, USA
| | - Danielle M Townsley
- Hematology Branch, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD, USA
| | - Neal S Young
- Hematology Branch, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD, USA
| | - Siobán Keel
- Division of Haematology, Dept of Medicine, University of Washington, Seattle, WA, USA
| | - Akiko Shimamura
- Division of Haematology/Oncology, Boston Children's Hospital, Boston, MA, USA
| | - Farid Boulad
- Paediatric Oncology and Bone Marrow Transplant Service, Dept of Paediatrics, Memorial Sloan Kettering Cancer Centre, New York, NY, USA
| | - Tregony Simoneau
- Dept of Pulmonology, Connecticut Children's Medical Centre, Hartford, CT, USA
| | | | - Christin Kuo
- Dept of Pulmonology, Lucile Packard Children's Hospital Stanford, Palo Alto, CA, USA
| | - Steven Artandi
- Cancer Biology Program, Stanford University School of Medicine, Palo Alto, CA, USA
| | | | - Des W Cox
- Paediatric Respiratory Medicine, Our Lady's Children's Hospital, Dublin, Ireland
| | - Sara Chaffee
- Paediatric Haematology Oncology, Children's Hospital at Dartmouth, Dartmouth-Hitchcock Medical Centre, Lebanon, NH, USA
| | - Bridget F Collins
- Centre for Interstitial Lung Diseases, Division of Pulmonary and Critical Care Medicine/Dept of Medicine, University of Washington, Seattle, WA, USA
| | - Neelam Giri
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Blanche P Alter
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ganesh Raghu
- Centre for Interstitial Lung Diseases, Division of Pulmonary and Critical Care Medicine/Dept of Medicine, University of Washington, Seattle, WA, USA.,Both authors contributed equally
| | - Sharon A Savage
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.,Both authors contributed equally
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