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hereditary haemorrhagic telangiectasia

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https://www.readbyqxmd.com/read/30337360/low-serum-haptoglobin-and-blood-films-suggest-intravascular-haemolysis-contributes-to-severe-anaemia-in-hereditary-haemorrhagic-telangiectasia
#1
Lieze Thielemans, D Mark Layton, Claire L Shovlin
No abstract text is available yet for this article.
October 18, 2018: Haematologica
https://www.readbyqxmd.com/read/30336550/pulmonary-arterial-hypertension-and-hereditary-haemorrhagic-telangiectasia
#2
REVIEW
Veronique M M Vorselaars, Anna E Hosman, Cornelis J J Westermann, Repke J Snijder, Johannes J Mager, Marie-Jose Goumans, Marco C Post
Hereditary haemorrhagic telangiectasia (HHT) is an autosomal dominant inherited disease characterised by multisystemic vascular dysplasia. Heritable pulmonary arterial hypertension (HPAH) is a rare but severe complication of HHT. Both diseases can be the result of genetic mutations in ACVLR1 and ENG encoding for proteins involved in the transforming growth factor-beta (TGF-β) superfamily, a signalling pathway that is essential for angiogenesis. Changes within this pathway can lead to both the proliferative vasculopathy of HPAH and arteriovenous malformations seen in HHT...
October 17, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/30295705/hereditary-haemorrhagic-telangiectasia-with-multiple-complications-presenting-in-an-older-patient
#3
Rano Abdulla Kyzy, Victoria Durojaiye, Jason Leo Walsh
Hereditary haemorrhagic telangiectasia (HHT) is a rare autosomal dominant multi-organ vascular disorder associated with bleeding and a reduced life expectancy. We present a 91-year-old woman with complications of previously undiagnosed HHT. This case demonstrates three potential complications: pulmonary arteriovenous malformation (AVM) resulting in a right to left shunt, cerebral infarctions and pericardial effusion. Despite these potentially life-threatening complications and the reduced life-expectancy associated with HHT the patient has survived to an advanced age...
October 5, 2018: Age and Ageing
https://www.readbyqxmd.com/read/30288899/absence-of-renal-phenotype-in-hereditary-haemorrhagic-telangiectasia
#4
Lachlan Healy, Kathleen Nicholls, Robert Gibson, Damien Stella, Michael Bogwitz, Jessica Taylor, Maie Walsh, Liz Donaldson, Ingrid Winship
Hereditary haemorrhagic telangiectasia is characterised by abnormal blood vessel formation, producing telangiectasia and arteriovenous malformations in multiple organs. Information regarding possible renal involvement in hereditary haemorrhagic telangiectasia is limited. This study assessed renal structure and function in 11 patients with genetically confirmed diagnosis and known arteriovenous malformations in lung, liver, gastrointestinal tract or brain. All had significant current or past epistaxis. Despite the vascularity of the kidneys, we found no evidence of renal involvement...
October 2018: Internal Medicine Journal
https://www.readbyqxmd.com/read/30251589/mutations-in-the-eng-acvrl1-and-smad4-genes-and-clinical-manifestations-of-hereditary-haemorrhagic-telangiectasia-experience-from-the-center-for-osler-s-disease-uppsala-university-hospital
#5
Torbjörn Karlsson, Honar Cherif
AIM: The aim of this retrospective single-centre study was to evaluate whether mutations in the ENG, ACVRL1, and SMAD4 genes were associated with different phenotypes in hereditary haemorrhagic telangiectasia (HHT). METHODS: The case records of 21 HHT patients with verified mutations in ENG, ACVRL1, or SMAD4 genes were reviewed. The numbers of HHT diagnostic criteria fulfilled for the three genotypes were compared, as was the prevalence of complications such as iron deficiency anaemia, gastrointestinal haemorrhage, stroke, and cerebral abscess...
September 2018: Upsala Journal of Medical Sciences
https://www.readbyqxmd.com/read/30244195/genome-sequencing-reveals-a-deep-intronic-splicing-acvrl1-mutation-hotspot-in-hereditary-haemorrhagic-telangiectasia
#6
Whitney L Wooderchak-Donahue, Jamie McDonald, Andrew Farrell, Gulsen Akay, Matt Velinder, Peter Johnson, Chad VanSant-Webb, Rebecca Margraf, Eric Briggs, Kevin J Whitehead, Jennifer Thomson, Angela E Lin, Reed E Pyeritz, Gabor Marth, Pinar Bayrak-Toydemir
INTRODUCTION: Hereditary haemorrhagic telangiectasia (HHT) is a genetically heterogeneous disorder caused by mutations in the genes ENG , ACVRL1 , and SMAD4. Yet the genetic cause remains unknown for some families even after exhaustive exome analysis. We hypothesised that non-coding regions of the known HHT genes may harbour variants that disrupt splicing in these cases. METHODS: DNA from 35 individuals with clinical findings of HHT and 2 healthy controls from 13 families underwent whole genome sequencing...
September 22, 2018: Journal of Medical Genetics
https://www.readbyqxmd.com/read/30232072/severe-pulmonary-hypertension-associated-with-hepatic-arteriovenous-malformation-in-a-patient-with-hereditary-haemorrhagic-telangiectasia
#7
Sakolwat Montrivade, Patinya Maneesow, Thamonwan Osotthanakorn, Pairoj Chattranukulchai
We report a case of 46-year-old Asian woman with a history of recurrent epistaxis who presented with dyspnoea on exertion. Physical examination revealed mucocutaneous telangiectasias and signs of heart failure. Further evaluation showed huge hepatic arteriovenous malformation and severe pulmonary hypertension. This case demonstrates an uncommon manifestation of hereditary haemorrhagic telangiectasia presented with severe pulmonary hypertension.
September 18, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/30191780/the-use-of-thalidomide-therapy-for-refractory-epistaxis-in-hereditary-haemorrhagic-telangiectasia-systematic-review
#8
L Harrison, A Kundra, P Jervis
BACKGROUND: Hereditary haemorrhagic telangiectasia is an autosomal dominant condition, characterised by mucocutaneous telangiectasia, aneurysm and arteriovenous malformations. Thalidomide has been used as a therapeutic strategy for refractory epistaxis in hereditary haemorrhagic telangiectasia patients. This review set out to examine the evidence for using thalidomide in the management of refractory epistaxis in hereditary haemorrhagic telangiectasia patients. METHODS: A systematic search of the available literature was performed using Medline, Embase, Cochrane Library and NHS Evidence databases, from inception to December 2017...
October 2018: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/30111344/european-reference-network-for-rare-vascular-diseases-vascern-outcome-measures-for-hereditary-haemorrhagic-telangiectasia-hht
#9
Claire L Shovlin, Elisabetta Buscarini, Anette D Kjeldsen, Hans Jurgen Mager, Carlo Sabba, Freya Droege, Urban Geisthoff, Sara Ugolini, Sophie Dupuis-Girod
Hereditary haemorrhagic telangiectasia (HHT) is a multisystemic vascular dysplasia that leads to nosebleeds, anaemia due to blood loss, and arteriovenous malformations (AVMs) in organs such as the lungs, liver and brain. HHT is estimated to affect 85,000 European citizens, but most health care providers have limited prior HHT exposure or training.Outcome Measures were developed and implemented by the HHT Working Group of the European Reference Network for Rare Vascular Diseases (VASCERN), in order to maximise the number of patients receiving good care...
August 15, 2018: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/30086858/pulmonary-arteriovenous-malformations-a-radiological-and-clinical-investigation-of-136-patients-with-long-term-follow-up
#10
P E Andersen, P M Tørring, S Duvnjak, O Gerke, H Nissen, A D Kjeldsen
AIM: To assess the clinical outcome of patients with and without hereditary haemorrhagic telangiectasia (HHT) after embolisation of pulmonary arteriovenous malformations (PAVM) from a single national centre. MATERIALS AND METHODS: The present register-based observational study including all patients with PAVM treated with embolisation at a reference centre for HHT and PAVM was undertaken over a 20-year period. Demographic data, HHT genotyping, clinical presentation, and outcome were registered...
November 2018: Clinical Radiology
https://www.readbyqxmd.com/read/30040069/the-impact-of-small-bowel-endoscopy-in-patients-with-hereditary-hemorrhagic-telangiectasia
#11
Stefania Chetcuti Zammit, David S. Sanders, Mark E. McAlindon, Reena Sidhu
No abstract text is available yet for this article.
November 13, 2018: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
https://www.readbyqxmd.com/read/29720405/-smad4-dpc4
#12
REVIEW
Aoife J McCarthy, Runjan Chetty
Smad4 or DPC4 belongs to a family of signal transduction proteins that are phosphorylated and activated by transmembrane serine-threonine receptor kinases in response to transforming growth factor beta (TGF-β) signaling via several pathways. The gene acts as a tumour suppressor gene and inactivation of smad4/DPC4 is best recognised in pancreatic cancer. However, smad4/DPC4 is also mutated in other conditions and cancers such as juvenile polyposis syndrome with and without hereditary haemorrhagic telangiectasia, colorectal and prostate cancers...
August 2018: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/29593876/life-threatening-hemoptysis-case-of-osler-weber-rendu-syndrome
#13
Ricardo Alicea-Guevara, Michael Cruz Caliz, Jose Adorno, Ricardo Fernandez, Kelvin Rivera, Gustavo Gonzalez, Ricardo Alan Hernandez-Castillo, Rosangela Fernandez, Christian Castillo Latorre
Hereditary haemorrhagic telangiectasia (HHT), also known as Osler-Weber-Rendu syndrome, is a rare autosomal dominant vascular disorder. Patients with HHT may present with a wide spectrum of clinical manifestations, some considered to be life-threatening. We present the case of a 53-year-old male who presented with massive haemoptysis. Chest computed tomography scan was remarkable for a large anterior, left lower lobe arteriovenous malformation. The patient underwent a pulmonary angiogram with embolization of a large left lung arteriovenous malformation, which proved to be successful in controlling the bleeding...
March 2018: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/29497946/reproducibility-of-right-to-left-shunt-quantification-using-transthoracic-contrast-echocardiography-in-hereditary-haemorrhagic-telangiectasia
#14
V M M Vorselaars, S Velthuis, M P Huitema, A E Hosman, C J J Westermann, R J Snijder, J J Mager, M C Post
AIM: Transthoracic contrast echocardiography (TTCE) is recommended for screening of pulmonary arteriovenous malformations (PAVMs) in hereditary haemorrhagic telangiectasia. Shunt quantification is used to find treatable PAVMs. So far, there has been no study investigating the reproducibility of this diagnostic test. Therefore, this study aimed to describe inter-observer and inter-injection variability of TTCE. METHODS: We conducted a prospective single centre study...
April 2018: Netherlands Heart Journal
https://www.readbyqxmd.com/read/29446520/lenalidomide-as-a-novel-therapy-for-gastrointestinal-angiodysplasia-in-von-willebrand-disease
#15
N V Khatri, B Patel, D R Kohli, S S Solomon, K Bull-Henry, C M Kessler
INTRODUCTION: Lenalidomide is a thalidomide analog with anti-angiogenic properties. Previous case reports suggest its efficacy in preventing gastrointestinal bleeding (GIB) secondary to angiodysplasia (AD) in hereditary haemorrhagic telangiectasia and potentially in reversing AD. We present the first case series to explore lenalidomide as a treatment for AD-related GIB in patients with von Willebrand disease (VWD). METHODS: A retrospective chart review was conducted to include patients with VWD, who were evaluated from 2010 to 2013 and who had received lenalidomide to treat recurrent GIB secondary to AD...
March 2018: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/29313587/hereditary-haemorrhagic-telangiectasia-with-severe-anemia-and-recurrent-cns-infections
#16
Nrushen Peesapati, Pbpr Naidu, S Sunitha, P V Sivaram
Hereditary Haemorrhagic Telangiectasia, also known as Osler-Rendu-Weber disease is a rare autosomal dominant disorder affecting small vessels of multiple systems whose main pathological change is the presence of abnormal arteriovenous communications. Usually presents as skin and mucosal telangiectasias, epistaxis, gastrointestinal bleeding and visceral arteriovenous malformations. Although the epistaxis and gastrointestinal blood loss can result in anaemia, patients with hereditary haemorrhagic telangiectasia rarely presents as severe anaemia1 or CNS infections...
September 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/29295777/hereditary-haemorrhagic-telangiectasia-in-pregnancy-regional-and-general-anaesthesia
#17
M Crawford, R Burns, S Cooper, T Mackay
Hereditary haemorrhagic telangiectasia, also known as Osler-Weber-Rendu disease, is a rare autosomal dominant multisystem disorder, characterised by mucocutaneous telangiectases and arteriovenous malformations affecting any organ. The physiological changes in pregnancy pose significant obstetric and anaesthetic challenges for women affected by the disease. The optimal timing and mode of delivery requires careful consideration; and the benefits and risks of both regional and general anaesthetic techniques must be carefully considered, depending on the organs affected...
February 2018: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/29196283/ringed-telangiectasias-an-unusual-presentation-of-telangiectasia-macularis-eruptiva-perstans
#18
Laila Siddique, Hadjh Ahrns, Elizabeth Seiverling
Telangiectasia macularis eruptiva perstans (TMEP) is a rare form of cutaneous mastocytosis. While most cutaneous mastocytoses occur in children and are asymptomatic, TMEP occurs predominantly in adults and is associated with systemic manifestations, requiring medical management. TMEP is typically characterised by scattered red-brown macules on the trunk and extremities, but must be differentiated from other telangiectatic conditions such as scleroderma, hereditary haemorrhagic telangiectasia and telangiectasias secondary to cirrhosis...
November 30, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29166422/intranasal-bevacizumab-in-the-treatment-of-hht-related-epistaxis-a-systematic-review
#19
REVIEW
P Stokes, J Rimmer
BACKGROUND: Hereditary haemorrhagic telangiectasia (HHT) remains a difficult disease for the ENT specialist to manage. Affected patients often report recurrent epistaxis as the most debilitating symptom. The pathogenesis of the disease is due to genetic mutations affecting angiogenesis. For this reason, the anti-angiogenic therapy bevacizumab has gained popularity in the local treatment of epistaxis in patients with HHT. OBJECTIVE: A systematic review of the efficacy of bevacizumab in local treatment of epistaxis in patients with HHT based on epistaxis duration, frequency, severity and impact on quality of life...
March 1, 2018: Rhinology
https://www.readbyqxmd.com/read/29141890/british-thoracic-society-clinical-statement-on-pulmonary-arteriovenous-malformations
#20
Claire L Shovlin, Robin Condliffe, James W Donaldson, David G Kiely, Stephen J Wort
Pulmonary arteriovenous malformations (PAVMs) are structurally abnormal vascular communications that provide a continuous right-to-left shunt between pulmonary arteries and veins. Their importance stems from the risks they pose (>1 in 4 patients will have a paradoxical embolic stroke, abscess or myocardial infarction while life-threatening haemorrhage affects 1 in 100 women in pregnancy), opportunities for risk prevention, surprisingly high prevalence and under-appreciation, thus representing a challenging condition for practising healthcare professionals...
December 2017: Thorax
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