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Grombirikova H, Bily V, Soucek P, Kramarek M, Hakl R, Ballonova L, Ravcukova B, Ricna D, Kozena K, Kratochvilova L, Sobotkova M, Zachova R, Kuklinek P, Kralickova P, Krcmova I, Hanzlikova J, Vachova M, Krystufkova O, Dankova E, Jesenak M, Novackova M, Svoboda M, Litzman J, Freiberger T. Systematic Approach Revealed SERPING1 Splicing-Affecting Variants to be Highly Represented in the Czech National HAE Cohort. J Clin Immunol 2023; 43:1974-1991. [PMID: 37620742 PMCID: PMC10661775 DOI: 10.1007/s10875-023-01565-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 08/02/2023] [Indexed: 08/26/2023]
Abstract
Hereditary angioedema due to C1 inhibitor deficiency (C1-INH-HAE) is a rare and life-threatening condition characterized by recurrent localized edema. We conducted a systematic screening of SERPING1 defects in a cohort of 207 Czech patients from 85 families with C1-INH-HAE. Our workflow involved a combined strategy of sequencing extended to UTR and deep intronic regions, advanced in silico prediction tools, and mRNA-based functional assays. This approach allowed us to detect a causal variant in all families except one and to identify a total of 56 different variants, including 5 novel variants that are likely to be causal. We further investigated the functional impact of two splicing variants, namely c.550 + 3A > C and c.686-7C > G using minigene assays and RT-PCR mRNA analysis. Notably, our cohort showed a considerably higher proportion of detected splicing variants compared to other central European populations and the LOVD database. Moreover, our findings revealed a significant association between HAE type 1 missense variants and a delayed HAE onset when compared to null variants. We also observed a significant correlation between the presence of the SERPING1 variant c.-21 T > C in the trans position to causal variants and the frequency of attacks per year, disease onset, as well as Clinical severity score. Overall, our study provides new insights into the genetic landscape of C1-INH-HAE in the Czech population, including the identification of novel variants and a better understanding of genotype-phenotype correlations. Our findings also highlight the importance of comprehensive screening strategies and functional analyses in improving the C1-INH-HAE diagnosis and management.
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Affiliation(s)
- Hana Grombirikova
- Centre for Cardiovascular Surgery and Transplantation, Brno, Czech Republic
- Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Viktor Bily
- Centre for Cardiovascular Surgery and Transplantation, Brno, Czech Republic
- Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Premysl Soucek
- Centre for Cardiovascular Surgery and Transplantation, Brno, Czech Republic
- Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Michal Kramarek
- Centre for Cardiovascular Surgery and Transplantation, Brno, Czech Republic
- Faculty of Medicine, Masaryk University, Brno, Czech Republic
- Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Roman Hakl
- Faculty of Medicine, Masaryk University, Brno, Czech Republic
- Department of Allergology and Clinical Immunology, St. Anne's University Hospital in Brno, Brno, Czech Republic
| | - Lucie Ballonova
- Centre for Cardiovascular Surgery and Transplantation, Brno, Czech Republic
- Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Barbora Ravcukova
- Centre for Cardiovascular Surgery and Transplantation, Brno, Czech Republic
| | - Dita Ricna
- Centre for Cardiovascular Surgery and Transplantation, Brno, Czech Republic
| | - Karolina Kozena
- Centre for Cardiovascular Surgery and Transplantation, Brno, Czech Republic
- Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | | | - Marta Sobotkova
- Department of Immunology, 2nd Medical School, Charles University and University Hospital Motol, Prague, Czech Republic
| | - Radana Zachova
- Department of Immunology, 2nd Medical School, Charles University and University Hospital Motol, Prague, Czech Republic
| | - Pavel Kuklinek
- Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Pavlina Kralickova
- Institute of Clinical Immunology and Allergy, University Hospital Hradec Kralove, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Irena Krcmova
- Institute of Clinical Immunology and Allergy, University Hospital Hradec Kralove, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Jana Hanzlikova
- Department of Immunology and Allergology, University Hospital Pilsen, Pilsen, Czech Republic
| | - Martina Vachova
- Department of Immunology and Allergology, University Hospital Pilsen, Pilsen, Czech Republic
- Department of Immunology and Allergology, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Olga Krystufkova
- Institute of Rheumatology and Department of Rheumatology, 1st Faculty of Medicine, Charles University, Prague, Czech Republic
| | | | - Milos Jesenak
- National Centre for Hereditary Angioedema, Department of Pediatrics, Department of Pulmonology and Pathophysiology, Department of Clinical Immunology and Allergology, Comenius University in Bratislava, Jessenius Faculty of Medicine, University Teaching Hospital in Martin, Martin, Slovakia
| | | | - Michal Svoboda
- Institute of Biostatistics and Analyses, Ltd., Brno, Czech Republic
| | - Jiri Litzman
- Faculty of Medicine, Masaryk University, Brno, Czech Republic
- Department of Allergology and Clinical Immunology, St. Anne's University Hospital in Brno, Brno, Czech Republic
| | - Tomas Freiberger
- Centre for Cardiovascular Surgery and Transplantation, Brno, Czech Republic.
- Faculty of Medicine, Masaryk University, Brno, Czech Republic.
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Wilkerson RG, Winters ME. Angiotensin-Converting Enzyme Inhibitor-Induced Angioedema. Immunol Allergy Clin North Am 2023; 43:513-532. [PMID: 37394257 DOI: 10.1016/j.iac.2022.10.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Angioedema is a well-recognized and potentially lethal complication of angiotensin-converting enzyme inhibitor (ACEi) therapy. In ACEi-induced angioedema, bradykinin accumulates due to a decrease in its metabolism by ACE, the enzyme that is primarily responsible for this function. The action of bradykinin at bradykinin type 2 receptors leads to increased vascular permeability and the accumulation of fluid in the subcutaneous and submucosal space. Patients with ACEi-induced angioedema are at risk for airway compromise because of the tendency for the face, lips, tongue, and airway structures to be affected. The emergency physician should focus on airway evaluation and management when treating patients with ACEi-induced angioedema.
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Affiliation(s)
- R Gentry Wilkerson
- Department of Emergency Medicine, University of Maryland School of Medicine, 110 South Paca Street, 6th Floor, Suite 200, Baltimore, MD 21201, USA.
| | - Michael E Winters
- Department of Emergency Medicine, University of Maryland School of Medicine, 110 South Paca Street, 6th Floor, Suite 200, Baltimore, MD 21201, USA. https://twitter.com/critcareguys
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Yeich A, Elhatw A, Ashoor Z, Park K, Craig T. Safety of medications for hereditary angioedema during pregnancy and lactation. Expert Opin Drug Saf 2023; 22:17-24. [PMID: 36744397 DOI: 10.1080/14740338.2023.2177269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Hereditary Angioedema (HAE) attacks show an increased frequency and severity for pregnant and lactating females secondary to the hormonal changes. The diagnosis and management of HAE in pregnant and lactating females pose a challenge for physicians due to the rarity of the disease and the paucity of the data for specific management. AREAS COVERED In this manuscript, we discuss the diagnosis and special presentation of HAE types 1 and 2 in pregnant and lactating females, including acute management, short-term prophylaxis, long-term prophylaxis, and drugs that should be avoided. Relevant publications were found through key word search of papers indexed in both Google Scholar and PubMed on 1 July 2022. EXPERT OPINION Treatment of HAE in the past has been mainly provided by experts; however, with more medications and an increasing number of patients, knowledge of how to care for HAE patients during pregnancy and lactation is important to review. Despite approval of additional medications in many countries, plasma-derived C1-inhibitor remains the drug of first choice for treatment in this unique population. Additional research is needed to increase safe access to other therapy options. We hope that future clinical studies, registries, and databases will shed additional light on this subject.
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Affiliation(s)
- Andrew Yeich
- Department of Allergy, Asthma and Immunology, Medical Student, Penn State College of Medicine, Hershey, PA, USA
| | - Ahmed Elhatw
- Department of Allergy, Asthma and Immunology, Resident, Cairo University School of Medicine, Giza, Egypt
| | - Zaynab Ashoor
- Department of Allergy, Asthma and Immunology, Medical Student, Cairo University School of Medicine, Giza, Egypt
| | - Kristen Park
- Department of Allergy, Asthma and Immunology, Medical Student, Penn State College of Medicine, Hershey, PA, USA
| | - Timothy Craig
- Department of Allergy, Asthma, and Immunology, Professor of Medicine, Pediatrics, and Biomedical Sciences, Hershey, PA, USA
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Abstract
Angioedema is a well-recognized and potentially lethal complication of angiotensin-converting enzyme inhibitor (ACEi) therapy. In ACEi-induced angioedema, bradykinin accumulates due to a decrease in its metabolism by ACE, the enzyme that is primarily responsible for this function. The action of bradykinin at bradykinin type 2 receptors leads to increased vascular permeability and the accumulation of fluid in the subcutaneous and submucosal space. Patients with ACEi-induced angioedema are at risk for airway compromise because of the tendency for the face, lips, tongue, and airway structures to be affected. The emergency physician should focus on airway evaluation and management when treating patients with ACEi-induced angioedema.
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Minafra FG, Gonçalves TR, Alves TM, Pinto JA. The Mortality from Hereditary Angioedema Worldwide: a Review of the Real-World Data Literature. Clin Rev Allergy Immunol 2021; 62:232-239. [PMID: 34687444 DOI: 10.1007/s12016-021-08897-8] [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] [Accepted: 08/26/2021] [Indexed: 11/25/2022]
Abstract
This study aims to review the global mortality secondary to laryngeal edema in patients diagnosed with hereditary angioedema and their relatives over the years, as well as to describe epidemiological and clinical findings associated with this outcome. An extensive search of the literature was made in PubMed, Scopus, and Embase to identify mortality rates secondary to laryngeal edema in patients with hereditary angioedema. The search was carried out in September of 2020 and in April of 2021, and keywords based on the MeSH terms were searched in three databases. The filter of language was used for finding only articles in English, and there was no limit to the year of publication. A total of twenty-three articles fulfilled the inclusion criteria for review and data extraction. The analyzed studies included 3292 patients and 411 deaths from asphyxia due to laryngeal edema. One hundred and three deaths in close relatives were described as secondary to the same cause. The main findings were summarized in tables: year and place of publication, the number of patients and deaths from laryngeal edema, patients previously diagnosed, and death age. Death rates from laryngeal edema had an average of one death for every 20 patients. Eight studies reported deaths in relatives. For every 7.4 patients in these studies, one relative died. The percentage among deaths in general associated with laryngeal edema was evaluated in three studies (32.7%, 44.4%, and 56%). The high frequency of this outcome suggests that deaths still occur, and improvement of hereditary angioedema treatment still needs to be met.
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Affiliation(s)
- Fernanda Gontijo Minafra
- Department of Pediatrics, Universidade Federal de Minas Gerais, Belo Horizonte, Av. Professor Alfredo Balena, 190/267, Minas Gerais, Brazil.
| | | | - Thaís Martins Alves
- Medical School, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Jorge Andrade Pinto
- Department of Pediatrics, Universidade Federal de Minas Gerais, Belo Horizonte, Av. Professor Alfredo Balena, 190/267, Minas Gerais, Brazil
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Maurer M, Caballero T, Aberer W, Zanichelli A, Bouillet L, Bygum A, Grumach AS, Botha J, Andresen I, Longhurst HJ. Variability of disease activity in patients with hereditary angioedema type 1/2: longitudinal data from the Icatibant Outcome Survey. J Eur Acad Dermatol Venereol 2021; 35:2421-2430. [PMID: 34506666 DOI: 10.1111/jdv.17654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 08/13/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Hereditary angioedema due to C1 inhibitor deficiency (HAE-1/2) is a chronic and debilitating disease. The unpredictable clinical course represents a significant patient burden. OBJECTIVE To analyse longitudinal registry data from the Icatibant Outcome Survey (IOS) in order to characterize temporal changes in disease activity in patients with HAE-1/2. METHODS Icatibant Outcome Survey (NCT01034969) is an international observational registry monitoring the clinical outcomes of patients eligible for icatibant treatment. The current analyses are based on data collected between July 2009 and July 2019. Retrospective data for attacks recorded in the 12 months prior to IOS enrolment and for each 12-month period up to 7 years were analysed. RESULTS Included patients reported angioedema attacks without long-term prophylaxis (LTP; n = 315) and with LTP (n = 292) use at the time of attack onset. Androgens were the most frequently used LTP option (80.8%). At the population level, regardless of LTP use, most patients (52-80%) reporting <5 attacks in Year 1 continued experiencing this rate; similarly, many patients (25-76%) who reported high attack frequency continued reporting ≥10 attacks/year. However, year on year, 31-51% of patients experienced notable changes (increase/decrease of ≥5 attacks) in annual attack frequency. Of patients who reported an absolute change of ≥10 attacks from Year 1 to 2, 17-50% continued to experience a change of this magnitude in subsequent years. CONCLUSION At the population level, attack frequency was generally consistent over 7 years. At the small group level, 28.8-34.5% of patients reported a change in attack frequency of ≥5 attacks from Year 1 to Year 2; up to half of these patients continued to experience this magnitude of variation in disease activity in later years, reflecting high intra-patient variability.
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Affiliation(s)
- M Maurer
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Allergology and Immunology, Berlin, Germany
| | - T Caballero
- Department of Allergy, Hospital Universitario La Paz, Hospital La Paz Institute for Health Research (IdiPaz), Biomedical Research Network on Rare Diseases (CIBERER, U754), Madrid, Spain
| | - W Aberer
- Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria
| | - A Zanichelli
- Department of Internal Medicine, Ospedale Luigi Sacco, ASST Fatebenefratelli Sacco, University of Milan, Milan, Italy
| | - L Bouillet
- National Reference Centre for Angioedema, Internal Medicine Department, Grenoble University Hospital, Grenoble, France
| | - A Bygum
- Department of Dermatology and Allergy Centre, Odense University Hospital, Odense, Denmark.,Department of Clinical Research, University of Southern Denmark, Odense, Denmark.,Clinical Institute, University of Southern Denmark, Odense, Denmark
| | - A S Grumach
- Clinical Immunology, Medical School, University Center Health ABC, Santo Andre, Brazil
| | - J Botha
- Takeda Pharmaceuticals International AG, Zurich, Switzerland
| | - I Andresen
- Takeda Pharmaceuticals International AG, Zurich, Switzerland
| | - H J Longhurst
- Formerly Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK.,Formerly University College London Hospitals, London, UK.,Auckland District Health Board, Auckland, New Zealand
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Ocak M, Nain E, Şahiner ÜM, Akin MŞ, Karabiber E, Şekerel BE, Soyer Ö. Recurrent angioedema in childhood: hereditary angioedema or histaminergic angioedema? Pediatr Dermatol 2021; 38:143-148. [PMID: 33275322 DOI: 10.1111/pde.14467] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 10/06/2020] [Accepted: 10/31/2020] [Indexed: 01/03/2023]
Abstract
BACKGROUND Recurrent angioedema is a rare entity during childhood. This study aimed to clarify differences between hereditary angioedema (HAE) and histaminergic angioedema (HA) in children. METHODS Fifty-seven children with HAE (male 36.8%, 8.9 years [5.4-12.5]) and 42 children with recurrent HA (male 42.9%, 11.5 years [8.1-16.8]) were analyzed. RESULTS The median age at symptom onset (6 [3-10]; 7.8 [4.5-13] years), frequency of angioedema episodes within last year (3 [2-5]; 5 [2-10]), and duration of symptoms (48 [24-48]; 24 [12-48] hours) were similar in the HAE and HA group, respectively. Recurrent urticaria was observed in 7.3% (n = 3) of patients in the HAE group and in 45.2% (n = 19) of the HA group (P < .001). While angioedema episodes involving the lips (n = 30; 71.4%; P = .035) and eyelids (n = 28; 66.7%; P = .012) were observed more frequently in the HA group, gastrointestinal involvement/abdominal pain (n = 15; 36.6%) was more common in HAE (P < .001). Itching as a prodromal symptom was detected in 47.6% (n = 20) of HA patients versus 14.6% (n = 6) of those with HAE (P = .002). In the logistic regression analysis for the diagnosis of HAE, a family history of angioedema (OR = 58.289 [95% CI 10.656-318.853], P < 001) and trauma (OR = 35.208 [95% CI [4.368-283.794]], P = .001) as a triggering factor were determined to be independent variables. CONCLUSION A family history of angioedema, trauma as a triggering factor, and abdominal pain should suggest the diagnosis of HAE and the need for further investigation.
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Affiliation(s)
- Melike Ocak
- Department of Pediatric Allergy, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ercan Nain
- Department of Pediatric Allergy, Sanliurfa Training and Research Hospital, Sanliurfa, Turkey
| | - Ümit Murat Şahiner
- Department of Pediatric Allergy, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Mustafa Şenol Akin
- Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Esra Karabiber
- Department of Pediatric Allergy, Sanliurfa Training and Research Hospital, Sanliurfa, Turkey
| | - Bülent Enis Şekerel
- Department of Pediatric Allergy, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Özge Soyer
- Department of Pediatric Allergy, Hacettepe University Faculty of Medicine, Ankara, Turkey
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Riedl MA, Banerji A, Gower R. Current medical management of hereditary angioedema: Follow-up survey of US physicians. Ann Allergy Asthma Immunol 2020; 126:264-272. [PMID: 33122123 DOI: 10.1016/j.anai.2020.10.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 09/29/2020] [Accepted: 10/22/2020] [Indexed: 11/17/2022]
Abstract
BACKGROUND Physician surveys on hereditary angioedema (HAE) management in 2010 and 2013 revealed important trends in HAE care. OBJECTIVE To evaluate current HAE management and the impact of new treatment options on physician practice patterns over time. METHODS During June and July 2019, 5382 physicians were contacted by means of postal mail to complete a 47-question survey; 177 responded (3%). RESULTS Across the 3 surveys, the home replaced the emergency department as the most typically reported setting for HAE attack treatment (54.3% vs 11.6% in 2010 and 32.5% in 2013; P < .001). Physicians reported C1 esterase inhibitor (C1-INH) as the most typically prescribed long-term prophylactic treatment (LTP) (60.0% vs 20.4% in 2010 and 56.7% in 2013; P < .001). Subcutaneous LTP medications were most typically prescribed over intravenous (C1-INH, 41.4%; subcutaneous lanadelumab, 21%; intravenous C1-INH, 18.6%). Danazol, the most frequently prescribed LTP treatment, dropped to 6.4% (55.8% in 2010 and 23.4% in 2013; P < .001). The strongest nonefficacy factor influencing clinician treatment choice changed over time, with cost and (or) insurance coverage increasing to 43.7% (from 24.4% in 2010 and 40.5% in 2013; P = .001), whereas the concern over adverse effects dropped to 16.2% (from 55.8% in 2010 and 29.5% in 2013; P < .001). Physician-reported patient satisfaction remains high, with only 1.5% of physicians indicating patients are not satisfied with treatment. CONCLUSION The US physician survey data reflect improvements in the HAE management in recent years. Therapeutic advances in HAE have led to reported higher rates of home treatment of HAE attacks, reduced concern for adverse treatment effects, and high levels of patient satisfaction.
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Affiliation(s)
- Marc A Riedl
- Division of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego School of Medicine, San Diego, California.
| | - Aleena Banerji
- Division of Rheumatology, Allergy and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Richard Gower
- Department of Medicine, University of Washington, Spokane, Washington
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Nasca MR, Giuffrida G, Micali G. The Influence of Pregnancy on the Clinical Evolution and Prognosis of Pre-Existing Inflammatory and Autoimmune Skin Disorders and Their Management. Dermatology 2020; 237:771-785. [PMID: 32950977 DOI: 10.1159/000509726] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 06/24/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Although the possible occurrence of typical dermatoses during pregnancy is well recognized, little is known about the influence of pregnancy on the clinical evolution and prognosis of different pre-existing chronic dermatological disorders. SUMMARY In this study a comprehensive search of the available literature and reviews has been undertaken in order to collect and analyze articles reporting pre-existing chronic skin disorders in pregnant women and report current knowledge on their particular clinical and therapeutic aspects.
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Hide M, Fukunaga A, Maehara J, Eto K, Hao J, Vardi M, Nomoto Y. Efficacy, pharmacokinetics, and safety of icatibant for the treatment of Japanese patients with an acute attack of hereditary angioedema: A phase 3 open-label study. Allergol Int 2020; 69:268-273. [PMID: 31672405 DOI: 10.1016/j.alit.2019.08.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 08/19/2019] [Accepted: 08/26/2019] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Hereditary angioedema (HAE) is a genetic disease characterized by recurrent swelling episodes affecting the skin, gastrointestinal mucosa, and upper respiratory tract. METHODS A phase 3, single-arm, open-label study was performed to evaluate a selective bradykinin B2 receptor antagonist, icatibant, for the treatment of acute attacks in Japanese patients with HAE Type I or II. After the onset of an acute attack, icatibant 30 mg was administered by the patient or a healthcare professional via subcutaneous injection in the abdomen. RESULTS Eight patients who had an attack affecting the skin (n = 4), abdomen (n = 3), or larynx (n = 1) were treated with icatibant (3 of the injections were self-administered). The median time to onset of symptom relief was 1.75 h (95% confidence interval, 1.00-2.50), and all patients had symptom relief within 5 h after administration. The time to maximum plasma concentration of icatibant was 1.79 h, and the maximum plasma concentration was 405 ng/ml. Seven patients experienced an injection site reaction, and 3 patients had adverse events (2 patients had a worsening or repeat HAE attack 29.0 and 18.3 h after icatibant administration, respectively, and 1 had headache). CONCLUSIONS Although the number of patients is small, the efficacy and tolerability of icatibant for acute attacks were demonstrated in Japanese patients with HAE, regardless of self-administration or administration by healthcare professional.
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Affiliation(s)
- Michihiro Hide
- Department of Dermatology, Institute of Biomedical & Health Sciences, Hiroshima University, Kasumi 1-2-3 Minami-ku, Hiroshima 734-8551, Japan.
| | - Atsushi Fukunaga
- Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Junichi Maehara
- Emergency and General Medicine Center, Saiseikai Kumamoto Hospital, Kumamoto, Japan
| | - Kazunori Eto
- Gastroenterology, Tomakomai City Hospital, Tomakomai, Japan
| | - James Hao
- Shire, a Takeda Company, Lexington, MA, USA
| | | | - Yuji Nomoto
- Department of Palliative Care Internal Medicine, Niigata City General Hospital, Niigata, Japan
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A hereditary angioedema screening in two villages, based on an index case, and identification of a novel mutation, "1033G>T", at the SERPING1 gene. Postepy Dermatol Alergol 2019; 36:403-411. [PMID: 31616213 PMCID: PMC6791162 DOI: 10.5114/ada.2018.78898] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 05/01/2018] [Indexed: 11/17/2022] Open
Abstract
Introduction Hereditary angioedema (HAE) may be fatal and diagnosis can be delayed up to 10 years. We aimed to screen HAE in two villages based on an index case of HAE and to investigate for the mutation of the C1 esterase inhibitor (C1-INH) gene. Material and methods A total of 124 people were screened in two villages. The frequency and severity of symptoms were scored. C4, C1-INH levels and C1-INH activity were measured. We investigated for mutations of the C1-INH gene. Results Thirty-five cases of type I HAE and 7 cases of type II HAE were determined. Thirty-one (73.8%) patients diagnosed with HAE were 18 years old or younger. There was a positive correlation between C4 levels, C1-INH levels (p < 0.0001, r = 0.81), and C1-INH activity levels (p < 0.0001, r = 0.631) and between the age at diagnosis and severity score (p < 0.0001, r = 0.651). A positive correlation was found between the age at first symptom onset and C4 levels (p = 0.002, r = 0.774), and C1-INH levels (p = 0.006, r = 0.714). A marginally significant negative correlation was found between C1-INH activity levels and severity scores (p = 0.1, r = -0.515). We identified a novel heterozygous 1033G>T missense variant of the C1-INH gene, SERPING1, in patients with type I HAE. Conclusions There are long delay periods in the diagnosis of HAE and when the index case is present, family screening may be very important and even life-saving, in particular, in paediatric patients without symptoms. Furthermore, the present study provides evidence to link a novel mutation, c.1033G>T, to the development of HAE in a large HAE family from Turkey.
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Wentzel N, Panieri A, Ayazi M, Ntshalintshali SD, Pourpak Z, Hawarden D, Potter P, Levin ME, Fazlollahi MR, Peter J. Fresh frozen plasma for on-demand hereditary angioedema treatment in South Africa and Iran. World Allergy Organ J 2019; 12:100049. [PMID: 31641402 PMCID: PMC6796769 DOI: 10.1016/j.waojou.2019.100049] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 05/07/2019] [Accepted: 07/22/2019] [Indexed: 11/16/2022] Open
Abstract
Background International guideline-recommended on-demand treatments for hereditary angioedema (HAE) include: C1-esterase inhibitor (plasma-derived or recombinant), or bradykinin-receptor antagonists. In most low- and middle-income countries (LMIC) these products are not registered or are unaffordable. Solvent-detergent, fresh or freeze-dried plasma therapy is thus the only available on-demand treatment in these settings; but published data on efficacy and safety are limited. This study evaluated the efficacy and safety of on-demand plasma treatment of acute HAE in two LMICs. Methods A retrospective folder or patient registry review of acute swelling episodes necessitating emergency room attendance amongst known HAE patients was conducted at treatment centers in South Africa and Iran. Data collected included the site of angioedema, timing and amount of fresh frozen plasma (FFP) administered, time-to-resolution, hospital length of stay and adverse events. Results There were 176 acute swelling episodes amongst 43 HAE patients; 98 were treated with FFP. The face, upper airway, and abdomen were involved in 15.3% (15/98), 53.1% (52/98) and 29.6% (29/98) of episodes treated with FFP respectively. Median (interquartile range ([IQR]) of FFP administered was 400 (280–560) mLs. In all episodes except two, FFP led to resolution, with median (IQR) hours to resolution 4 (2–12). Five transfusion reactions occurred, with one case of anaphylaxis and no deaths; giving an adverse reaction rate of 5%. Differences between South Africa and Iran included: (1) proportion of HAE type II(2) median (IQR) hours to FFP administration and hospitalization, (3) number of intubations after FFP infusion. Healthcare cost for FFP treatment was USD369- 791 in South Africa and USD275-550 in Iran, largely influenced by hospital length of stay. Conclusions Plasma (fresh-frozen) remains the only available effective on-demand treatment for acute HAE in many countries. FFP is effective and safe, but time-to-resolution is slower and adverse events are more frequent than published data on targeted therapies. Overall healthcare cost of FFP approaches that of targeted therapies – now available through global access programs – when hospitalization is prolonged.
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Key Words
- C1–INH, C1-esterase inhibitor
- CTCAE, common terminology criteria for adverse events
- FAST, for angioedema subcutaneous treatment
- FFP, fresh frozen plasma
- Fresh frozen plasma
- HAE, hereditary angioedema
- Hereditary angioedema
- IQR, interquartile range
- LMIC, low- and middle-income country
- SA, South Africa(n)
- SAE, serious adverse event
- TEAE, treatment-emergent adverse event
- Treatment
- USA, United States of America
- USD, United States dollar
- WAO, World Allergy Organisation
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Affiliation(s)
- Nicole Wentzel
- Faculty of Health Sciences, University of Cape Town, South Africa
| | - Angelica Panieri
- Faculty of Health Sciences, University of Cape Town, South Africa
| | - Maryam Ayazi
- Immunology, Asthma and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Zahra Pourpak
- Immunology, Asthma and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Di Hawarden
- Allergy and Clinical Immunology, Department of Medicine, University of Cape Town, South Africa & Allergy and Immunology Unit, University of Cape Town Lung Institute, Cape Town, South Africa
| | - Paul Potter
- Allergy and Clinical Immunology, Department of Medicine, University of Cape Town, South Africa & Allergy and Immunology Unit, University of Cape Town Lung Institute, Cape Town, South Africa
| | - Michael E Levin
- Division of Allergy, Department of Paediatrics, University of Cape Town, South Africa
| | - Mohammad Reza Fazlollahi
- Immunology, Asthma and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Jonathan Peter
- Allergy and Clinical Immunology, Department of Medicine, University of Cape Town, South Africa & Allergy and Immunology Unit, University of Cape Town Lung Institute, Cape Town, South Africa
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13
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Uzun T. Management of patients with hereditary angio-oedema in dental, oral, and maxillofacial surgery: a review. Br J Oral Maxillofac Surg 2019; 57:992-997. [PMID: 31591028 DOI: 10.1016/j.bjoms.2019.09.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 09/11/2019] [Indexed: 01/13/2023]
Abstract
Hereditary angio-oedema (HEA) is an autosomal dominant, life-threatening genetic disorder that is caused by insufficiency or dysfunction of the C1 esterase inhibitor that develops coincidentally with recurrent oedema in the skin, internal organs, and upper respiratory tract. Increased production of bradykinin secondary to increased plasma kallikrein activity is the primary cause of attacks. Dental procedures cause emotional stress and mechanical trauma and may also initiate attacks. The most feared complication is asphyxiation as a result of laryngeal oedema. Cases that resulted in death after tooth extraction have been reported, so dentists and oral and maxillofacial surgeons should take maximum care in the treatment of patients with HAO, consult with the patient's doctor, and ensure that prophylaxis is given before the procedure. They should work as atraumatically as possible and use procedures to minimise stress. In the event of an attack of HAO, despite all the correct measures having been taken, the procedure should be terminated immediately and treatment of the attack started as soon as possible. The first drugs for the treatment of acute attacks are C1-INH (C1 inhibitor), ecallantide, or icatibant.
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Affiliation(s)
- T Uzun
- Trabzon Oral and Dental Health Hospital, Department of Oral and Maxillofacial Surgery, DDS, Trabzon, Turkey. tugce--
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14
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Bygum A. Hereditary Angio-Oedema for Dermatologists. Dermatology 2019; 235:263-275. [PMID: 31167185 DOI: 10.1159/000500196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 04/08/2019] [Indexed: 11/19/2022] Open
Abstract
Among angio-oedema patients, hereditary angio-oedema (HAE) should not be overlooked. Besides skin swellings, these patients might have very painful abdominal attacks and potentially life-threatening angio-oedema of the upper airway. They will not respond to traditional anti-allergic therapy with antihistamines, corticosteroids, and adrenaline, and instead need specific drugs targeting the kallikrein-kinin pathway. Classically, patients with HAE have a quantitative or qualitative deficiency of the C1 inhibitor (C1INH) due to different mutations in SERPING1, although a new subtype with normal C1INH has been recognised more recently. This latter variant is diagnosed based on clinical features, family history, or molecular genetic testing for mutations in F12, ANGPT1,or PLG.The diagnosis of HAE is often delayed due to a general unfamiliarity with this orphan disease. However, undiagnosed patients are at an increased risk of unnecessary surgical interventions or life-threatening laryngeal swellings. Within the last decade, new and effective therapies have been developed and launched for acute and prophylactic therapy. Even more drugs are under evaluation in clinical trials. It is therefore of utmost importance that patients with HAE are diagnosed as soon as possible and offered relevant therapy with orphan drugs to reduce morbidity, prevent mortality, and improve quality of life.
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Affiliation(s)
- Anette Bygum
- Department of Dermatology and Allergy Centre, Odense University Hospital, Odense, Denmark,
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15
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Neutrophils Are Dysregulated in Patients with Hereditary Angioedema Types I and II in a Symptom-Free Period. Mediators Inflamm 2019; 2019:9515628. [PMID: 31236065 PMCID: PMC6545807 DOI: 10.1155/2019/9515628] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 03/06/2019] [Accepted: 03/18/2019] [Indexed: 12/23/2022] Open
Abstract
Neutrophils impact on processes preceding the formation of bradykinin, a major swelling mediator in hereditary angioedema (HAE), yet their potential role in HAE pathogenesis has not been sufficiently studied. We assessed the relative mRNA expression of 10 genes related to neutrophil activation using RNA extracted from the peripheral blood neutrophils of 23 HAE patients in a symptom-free period and 39 healthy donors. Increased relative mRNA expression levels of CD274, IL1B, IL1RN, IL8, MMP9, and TLR4, together with a lack in their mutual correlations detected in HAE patients compared to healthy controls, suggested a preactivated state and dysregulation of patients' neutrophils. Patients' neutrophil-alerted state was further supported by increased CD11b, decreased CD16 plasma membrane deposition, and increased relative CD274+ and CD87+ neutrophil counts, but not by increased neutrophil elastase or myeloperoxidase plasma levels. As CD274 mediates inhibitory signals to different immune cells, neutrophils were cocultured with T-cells/PBMC. The decrease in CD25+ and IFN-γ + T-cell/PBMC ratio in patients indicated the patients' neutrophil suppressive functions. In summary, the results showed neutrophils' alerted state and dysregulation at the transcript level in patients with HAE types I and II even in a symptom-free period, which might make them more susceptible to edema formation. Neutrophils' T-cell suppressive capacity in HAE patients needs to be further investigated.
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16
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Jung JW, Suh DI, Park HJ, Kim S, Kwon HS, Yang MS, Park CS, Kim JH, Kim SH, Lee YW, Hur GY, Ye YM, Kwon YE, Park HK, Kim CW, Koh YI, Park JW, Lee JM, Min KU, Wickner P, Kang HR. Clinical Features of Hereditary Angioedema in Korean Patients: A Nationwide Multicenter Study. Int Arch Allergy Immunol 2018; 176:272-279. [PMID: 29694969 DOI: 10.1159/000488350] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 03/13/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Hereditary angioedema (HAE) is a genetically heterogeneous autosomal dominant disorder characterized by recurrent episodes of nonpruritic, nonpitting edema increasing after puberty. It can be fatal due to laryngeal or gastrointestinal (GI) involvement with varied and changing frequency of mortality according to studies published from the Western countries. Epidemiological and clinical data of HAE in Asian countries are sparse. We sought to examine the clinical characteristics of HAE patients in Korea. METHODS Patients diagnosed with HAE at 15 tertiary hospitals across the country until 2016 were retrospectively reviewed. RESULTS A total of 65 patients diagnosed with HAE by 2016 were identified. The prevalence of HAE was estimated at 1.3/1,000,000 in Korea. Of the 65 patients, 21 (32.3%) were males. A total of 90.8% patients had type I HAE, while the remaining 9.2% patients had type II HAE. The first symptom developed after 20 years in 73.8% of patients, with a mean age 28.4 ± 14.1 years. The age at diagnosis was 36.5 ± 15.8 years, with a mean time delay of 7.8 ± 10.5 years. While the face (82.3%) and extremities (upper 71.0%, lower 62.9%) were the most frequently involved, the GI tract was affected in 40.5% of Korean HAE patients. Prophylaxis was maintained in 62.5% of patients. There was no reported case of death from HAE so far. CONCLUSIONS The clinical manifestation and severity of HAE may vary according to ethnicity. HAE is more infrequent and GI involvement is less likely in Korea compared with Western countries.
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Affiliation(s)
- Jae-Woo Jung
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Republic of Korea.,Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Dong In Suh
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hye Jung Park
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sujeong Kim
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Hyouk Soo Kwon
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Min Suk Yang
- Department of Internal Medicine, SMG-SNU Boramae Medical Center, Seoul, Republic of Korea
| | - Chan Sun Park
- Department of Internal Medicine, Inje University Haeundae Paik Hospital, Busan, Republic of Korea
| | - Joo-Hee Kim
- Department of Internal Medicine, Hallym University Sacred Heart Hospital, Anyang, Republic of Korea
| | - Sae-Hoon Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Yong Won Lee
- Department of Internal Medicine, Catholic Kwandong University College of Medicine, Incheon, Republic of Korea
| | - Gyu Young Hur
- Department of Internal Medicine, Korea University Guro Hospital, Seoul, Republic of Korea
| | - Young-Min Ye
- Department of Internal Medicine, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Yong Eun Kwon
- Department of Internal Medicine, Chosun University Hospital, Gwangju, Republic of Korea
| | - Hye-Kyung Park
- Department of Internal Medicine, Pusan National University School of Medicine, Busan, Republic of Korea
| | - Cheol Woo Kim
- Department of Internal Medicine, Inha University Hospital, Incheon, Republic of Korea
| | - Young-Il Koh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Jung Wong Park
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jong-Myung Lee
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Kyung-Up Min
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Republic of Korea.,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Paige Wickner
- Department of Rheumatology Allergy and Immunology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Hye-Ryun Kang
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Republic of Korea.,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
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17
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Riedl MA, Banerji A, Busse PJ, Johnston DT, Davis-Lorton MA, Patel S, Parr H, Chiao J, Watson DJ, Burrell E, Machnig T. Patient satisfaction and experience with intravenously administered C1-inhibitor concentrates in the United States. Ann Allergy Asthma Immunol 2017; 119:59-64. [PMID: 28668241 DOI: 10.1016/j.anai.2017.05.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 05/12/2017] [Accepted: 05/18/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND Hereditary angioedema (HAE) is a rare genetic disorder with substantial morbidity and mortality. Despite expanded choices for effective acute treatment, prophylactic options are more limited. Intravenous C1 esterase inhibitor (C1-INH[IV]) is licensed and used to prevent HAE symptoms. OBJECTIVE To better understand patient experiences with using C1-INH(IV), including level of satisfaction and types and frequency of complications. METHODS Fifty adult members (≥18 years of age) of the US HAE Association who had HAE type I or II completed a self-administered internet survey. Eligible participants were experiencing at least 1 HAE attack per month and must have been receiving treatment with C1-INH(IV) as prophylaxis or acute therapy. RESULTS Almost all respondents (n = 47; 94%) were using C1-INH(IV) for HAE prophylaxis. Most patients reported administration of C1-INH(IV) through a peripheral vein (n = 34) and 19 were currently (n = 17) or previously (n = 2) using a central venous port. Most respondents (62%) who used a peripheral vein to administer treatment reported having difficulty finding a usable vein or getting the infusion to work properly at least some of the time. Issues accessing veins, exhausted veins, and frequency of attacks were the main reasons physicians recommended ports to respondents. Although ports allow easier administration of therapy, 47% of respondents with ports experienced problems such as occlusion, thrombosis, and infection. Respondents using C1-INH prophylaxis reported a mean of 2.3 attacks per month during the previous 6 months. CONCLUSION The survey results identified clinical challenges with IV HAE medication use, including venous access issues and ongoing monthly attack occurrence despite prophylactic C1-INH(IV) administration.
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Affiliation(s)
- Marc A Riedl
- University of California-San Diego, La Jolla, California.
| | | | - Paula J Busse
- Icahn School of Medicine at Mount Sinai, New York, New York
| | | | | | | | - Howard Parr
- Phoenix Healthcare, Darlington, United Kingdom
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18
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Steiner UC, Weber-Chrysochoou C, Helbling A, Scherer K, Grendelmeier PS, Wuillemin WA. Hereditary angioedema due to C1 - inhibitor deficiency in Switzerland: clinical characteristics and therapeutic modalities within a cohort study. Orphanet J Rare Dis 2016; 11:43. [PMID: 27101900 PMCID: PMC4839073 DOI: 10.1186/s13023-016-0423-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Accepted: 04/12/2016] [Indexed: 11/25/2022] Open
Abstract
Background Registration of trigger factors, prodromal symptoms, swelling localization, therapeutic behavior and gender-specific differences of the largest cohort of patients with hereditary angioedema due to C1-Inhibitor deficiency (C1-INH-HAE) in Switzerland. Methods Questionnaire survey within a cohort study: Consenting eligible patients with diagnosed HAE according to clinical history, physical examination and laboratory results, including plasma values for C1-INH and C4 were selected. To each participant we sent a questionnaire assessing patients’ birthday, sex, date of first symptoms and diagnosis, trigger factors, prodromal symptoms, frequency and localization of angioedema, medication use and co-morbidities. Clinical information was collected in each center and then transmitted to the cohort database. Frequencies and distributions were summarized. Associations between gender and trigger factors or prodromal symptoms or localization of angioedema were assessed in multivariate analyses correcting for patients’ age. Results Of 135 patients, data from 104 patients (77 %) were available for analysis. Fifty- four percent were female, mean age at diagnosis was 19.5 years (SD 14.1), Mean age when completing the questionnaire was 44.0 (SD 19.8). More women than men were symptomatic (44/57 vs. 36/47; p = 0.005). This association remained when correcting for age at diagnosis (16.10. 95%CI (5.17 to 26.70); p = 0.004). Swelling episodes ranged between 1 and 136 episodes/year. Swelling was more common among female than among male (-13.15 (95 % CI; -23.10 to -3.22), p = 0.010). Age at diagnosis was inversely associated with the total number of attacks 0.50 (-0.88 to -.011); p = 0.012). One third of patients were on danazol prophylaxis. Conclusion We found large differences of HAE in male and female both in terms of symptom number and swelling episodes. Women are more affected by intensity and frequency of angioedema episodes than men. Danazol treatment remains widely used as effective prophylaxis despite its side effects. New therapies which selectively influence the hormonal estrogen balance could open new therapeutic options mainly for women and maybe also for men.
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Affiliation(s)
- Urs C Steiner
- Division of Clinical Immunology, University Hospital Zurich, Zurich, Switzerland.
| | | | - Arthur Helbling
- Division of Allergology, University Clinic of Rheumatology, Immunology and Allergology, Inselspital Bern, Bern, Switzerland
| | - Kathrin Scherer
- Allergy Unit, Department of Dermatology, University Hospital Basel, Basel, Switzerland
| | | | - Walter A Wuillemin
- Division of Heamatology and Central Heamatology Laboratory, Department of Internal Medicine, Kantonsspital Lucerne and University of Berne, Berne, Switzerland
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19
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Zuraw BL, Christiansen SC. How we manage persons with hereditary angioedema. Br J Haematol 2016; 173:831-43. [DOI: 10.1111/bjh.14059] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Bruce L. Zuraw
- University of California, San Diego; La Jolla CA USA
- San Diego VA Health System; San Diego CA USA
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20
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Complements Are Not Always a Good Thing. Adv Emerg Nurs J 2016; 38:93-108. [DOI: 10.1097/tme.0000000000000097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Malbrán A, Riedl M, Ritchie B, Smith WB, Yang W, Banerji A, Hébert J, Gleich GJ, Hurewitz D, Jacobson KW, Bernstein JA, Khan DA, Kirkpatrick CH, Resnick D, Li H, Fernández Romero DS, Lumry W. Repeat treatment of acute hereditary angioedema attacks with open-label icatibant in the FAST-1 trial. Clin Exp Immunol 2014; 177:544-53. [PMID: 24749847 DOI: 10.1111/cei.12358] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/15/2014] [Indexed: 11/30/2022] Open
Abstract
Hereditary angioedema (HAE) is characterized by potentially life-threatening recurrent episodes of oedema. The open-label extension (OLE) phase of the For Angioedema Subcutaneous Treatment (FAST)-1 trial (NCT00097695) evaluated the efficacy and safety of repeated icatibant exposure in adults with multiple HAE attacks. Following completion of the randomized, controlled phase, patients could receive open-label icatibant (30 mg subcutaneously) for subsequent attacks. The primary end-point was time to onset of primary symptom relief, as assessed by visual analogue scale (VAS). Descriptive statistics were reported for cutaneous/abdominal attacks 1-10 treated in the OLE phase and individual laryngeal attacks. Post-hoc analyses were conducted in patients with ≥ 5 attacks across the controlled and OLE phases. Safety was evaluated throughout. During the OLE phase, 72 patients received icatibant for 340 attacks. For cutaneous/abdominal attacks 1-10, the median time to onset of primary symptom relief was 1·0-2·0 h. For laryngeal attacks 1-12, patient-assessed median time to initial symptom improvement was 0·3-1·2 h. Post-hoc analyses showed the time to onset of symptom relief based on composite VAS was consistent across repeated treatments with icatibant. One injection of icatibant was sufficient to treat 88·2% of attacks; rescue medication was required in 5·3% of attacks. No icatibant-related serious adverse events were reported. Icatibant provided consistent efficacy and was well tolerated for repeated treatment of HAE attacks.
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Affiliation(s)
- A Malbrán
- Hospital Británico de Buenos Aires, Buenos Aires, Argentina
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Caballero T, Canabal J, Rivero-Paparoni D, Cabañas R. Management of hereditary angioedema in pregnant women: a review. Int J Womens Health 2014; 6:839-48. [PMID: 25228822 PMCID: PMC4164109 DOI: 10.2147/ijwh.s46460] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
THREE TYPES OF HEREDITARY ANGIOEDEMA (HAE) HAVE BEEN DESCRIBED two are due to C1 inhibitor (C1-INH) deficiency (C1-INH-HAE types I and II) and one is characterized by normal C1-INH (nC1-INH-HAE). The management of pregnancy in patients with HAE is often a clinical challenge owing to potential worsening of the disease in relation to the physiological increase in estrogens and the limited treatment options. This review addresses the potential influence of pregnancy on the clinical severity of hereditary angioedema and the management of this disease during pregnancy with currently available treatments.
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Affiliation(s)
- Teresa Caballero
- Hospital La Paz Institute for Health Research, (IdiPaz), Madrid, Spain
- Biomedical Research Network on Rare Diseases-U754 (CIBERER), Madrid, Spain
| | - Julio Canabal
- Hospital La Paz Institute for Health Research, (IdiPaz), Madrid, Spain
| | | | - Rosario Cabañas
- Hospital La Paz Institute for Health Research, (IdiPaz), Madrid, Spain
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23
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Abstract
Hereditary angioedema (HAE) is a lifelong illness characterized by recurrent swelling of the skin, intestinal tract, and, ominously, the upper airway. It is caused by inadequate activity of the protein C1-inhibitor, with dysfunction in the kallikrein/bradykinin pathway underlying the clinical symptoms. In addition to the physical symptoms, patients experience significant decrements in vocational and school achievement as well as in overall quality of life. Symptoms often begin in childhood and occur by age 20 in most patients, but life-threatening attacks are uncommon in the pediatric population. The availability of new therapies has transformed the management of HAE.
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Affiliation(s)
- Andrew J MacGinnitie
- Division of Immunology, Boston Children's Hospital, Boston, MA, USA; Department of Pediatrics, Harvard Medical School, Boston, MA, USA
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24
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Abstract
Urticaria is part of the management of pregnancy, labor, delivery, and the puerperium in some women. The urticaria can be acute, chronic, or physical, presenting with whealing, angioedema, or both. Contact urticaria can occur. Acquired angioedema, usually with urticaria, must be differentiated from hereditary angioedema. An approach to management of these conditions in pregnancy is proposed.
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25
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Banerji A. The burden of illness in patients with hereditary angioedema. Ann Allergy Asthma Immunol 2013; 111:329-36. [DOI: 10.1016/j.anai.2013.08.019] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Revised: 08/02/2013] [Accepted: 08/22/2013] [Indexed: 10/26/2022]
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26
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Zuraw BL, Banerji A, Bernstein JA, Busse PJ, Christiansen SC, Davis-Lorton M, Frank MM, Li HH, Lumry WR, Riedl M. US Hereditary Angioedema Association Medical Advisory Board 2013 recommendations for the management of hereditary angioedema due to C1 inhibitor deficiency. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2013; 1:458-67. [PMID: 24565617 DOI: 10.1016/j.jaip.2013.07.002] [Citation(s) in RCA: 121] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 07/10/2013] [Accepted: 07/12/2013] [Indexed: 11/26/2022]
Abstract
BACKGROUND The treatment of hereditary angioedema (HAE) has undergone dramatic changes as newer medicines have become available in recent years. Optimal care of these patients requires a comprehensive management plan. Although several consensus papers have been published concerning the diagnosis and treatment of HAE, guidelines for a comprehensive management plan have not been developed. OBJECTIVE To develop state-of-the-art recommendations for the treatment and management of HAE due to C1 inhibitor (C1INH) deficiency in the United States. METHODS Members of the US Hereditary Angioedema Association Medical Advisory Board began by reviewing the literature concerning treatment of HAE. Preliminary recommendations were developed based on the literature review, discussions in a face-to-face meeting, and refinements in a series of drafts. Final recommendations reflect the unanimous consensus of the medical advisory board and the US Hereditary Angioedema Association leadership. RESULTS Recommendations are provided regarding a comprehensive care plan for HAE, including the following: development of an overall management plan, treatment of angioedema attacks, prophylactic treatment, and patient monitoring. CONCLUSION A comprehensive individualized management plan developed between an expert HAE physician and the patient, in collaboration with local medical providers and emergency departments, can provide patients with the best opportunity to lead a normal life.
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Affiliation(s)
- Bruce L Zuraw
- Division of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, La Jolla, Calif; Medicine Service, San Diego Veterans Administration Healthcare, San Diego, Calif.
| | - Aleena Banerji
- Division of Allergy and Immunology, Department of Medicine, Harvard Medical School, Boston, Mass
| | - Jonathan A Bernstein
- Division of Immunology/Allergy, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Paula J Busse
- Division of Clinical Immunology, Department of Medicine, Mount Sinai School of Medicine, New York, NY
| | - Sandra C Christiansen
- Division of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, La Jolla, Calif; Allergy Department, Southern California Kaiser Permanente, San Diego, Calif
| | - Mark Davis-Lorton
- Division of Rheumatology & Immunology, Winthrop University Hospital, Mineola, NY
| | - Michael M Frank
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, Duke University Medical Center, Durham, NC
| | - Henry H Li
- Institute for Asthma and Allergy, Chevy Chase, Md
| | | | - Marc Riedl
- Clinical Immunology and Allergy, Department of Medicine, University of California Los Angeles, Los Angeles, Calif
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Aygören‐Pürsün E, Martinez Saguer I, Kreuz W, Klingebiel T, Schwabe D. Risk of angioedema following invasive or surgical procedures in HAE type I and II--the natural history. Allergy 2013; 68:1034-9. [PMID: 23968383 PMCID: PMC4223932 DOI: 10.1111/all.12186] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2013] [Indexed: 01/28/2023]
Abstract
Background Hereditary angioedema (HAE), caused by deficiency in C1-inhibitor (C1-INH), leads to unpredictable edema of subcutaneous tissues with potentially fatal complications. As surgery can be a trigger for edema episodes, current guidelines recommend preoperative prophylaxis with C1-INH or attenuated androgens in patients with HAE undergoing surgery. However, the risk of an HAE attack in patients without prophylaxis has not been quantified. Objectives This analysis examined rates of perioperative edema in patients with HAE not receiving prophylaxis. Methods This was a retrospective analysis of records of randomly selected patients with HAE type I or II treated at the Frankfurt Comprehensive Care Centre. These were examined for information about surgical procedures and the presence of perioperative angioedema. Results A total of 331 patients were included; 247 underwent 700 invasive procedures. Of these procedures, 335 were conducted in 144 patients who had not received prophylaxis at the time of surgery. Categories representing significant numbers of procedures were abdominal (n = 113), ENT (n = 71), and gynecological (n = 58) procedures. The rate of documented angioedema without prophylaxis across all procedures was 5.7%; in 24.8% of procedures, the presence of perioperative angioedema could not be excluded, leading to a maximum potential risk of 30.5%. Predictors of perioperative angioedema could not be identified. Conclusion The risk of perioperative angioedema in patients with HAE type I or II without prophylaxis undergoing surgical procedures ranged from 5.7% to 30.5% (CI 3.5–35.7%). The unpredictability of HAE episodes supports current international treatment recommendations to consider short-term prophylaxis for all HAE patients undergoing surgery.
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Affiliation(s)
- E. Aygören‐Pürsün
- Hospital of the Goethe‐University Frankfurt Pediatric Clinic Angioedema Centre Frankfurt Germany
| | - I. Martinez Saguer
- Hospital of the Goethe‐University Frankfurt Pediatric Clinic Angioedema Centre Frankfurt Germany
| | - W. Kreuz
- Internationales Forschungsinstitut für Gerinnungsstörungen und Immundefekte Mörfelden‐Walldorf Germany
| | - T. Klingebiel
- Hospital of the Goethe‐University Frankfurt Pediatric Clinic Angioedema Centre Frankfurt Germany
| | - D. Schwabe
- Hospital of the Goethe‐University Frankfurt Pediatric Clinic Angioedema Centre Frankfurt Germany
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Caballero T, Farkas H, Bouillet L, Bowen T, Gompel A, Fagerberg C, Bjökander J, Bork K, Bygum A, Cicardi M, de Carolis C, Frank M, Gooi JH, Longhurst H, Martínez-Saguer I, Nielsen EW, Obtulowitz K, Perricone R, Prior N. International consensus and practical guidelines on the gynecologic and obstetric management of female patients with hereditary angioedema caused by C1 inhibitor deficiency. J Allergy Clin Immunol 2012; 129:308-20. [DOI: 10.1016/j.jaci.2011.11.025] [Citation(s) in RCA: 123] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2011] [Revised: 10/27/2011] [Accepted: 11/21/2011] [Indexed: 10/14/2022]
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No Evidence for Linkage between the Hereditary Angiooedema Clinical Phenotype and the BDKR1, BDKR2, ACE or MBL2 gene. Scand J Immunol 2011; 74:100-6. [DOI: 10.1111/j.1365-3083.2011.02547.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Bork K, Hardt J, Staubach-Renz P, Witzke G. Risk of laryngeal edema and facial swellings after tooth extraction in patients with hereditary angioedema with and without prophylaxis with C1 inhibitor concentrate: a retrospective study. ORAL SURGERY, ORAL MEDICINE, ORAL PATHOLOGY, ORAL RADIOLOGY, AND ENDODONTICS 2011; 112:58-64. [PMID: 21601496 DOI: 10.1016/j.tripleo.2011.02.034] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2010] [Revised: 02/16/2011] [Accepted: 02/19/2011] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Tooth extractions may trigger clinical symptoms of hereditary angioedema due to C1 inhibitor deficiency (HAE-C1-INH). The aim of this study was to determine how many tooth extractions were followed by symptoms of HAE-C1-INH in patients with and without preoperative short-term prophylaxis with C1 inhibitor concentrate. STUDY DESIGN Tooth extractions and clinical symptoms of HAE-C1-INH were determined from clinical record files of 171 patients with HAE-C1-INH. RESULTS Facial swelling or potentially life-threatening laryngeal edema, or both, occurred in 124/577 tooth extractions (21.5%) without prophylaxis. Similar symptoms occurred in a fewer proportion of patients undergoing extractions (16/128; 12.5%) after short-term prophylaxis with C1 inhibitor concentrate. The graded dose-response relationship was significant at P < .05. CONCLUSIONS Short-term prophylaxis with C1 inhibitor concentrate significantly reduces the risk of HAE-C1-INH symptoms after tooth extraction. In some patients, however, facial swellings and laryngeal edema symptoms may occur despite prophylaxis.
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Affiliation(s)
- Konrad Bork
- Department of Dermatology, Johannes Gutenberg University, Mainz, Germany.
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Riedl M, Gower RG, Chrvala CA. Current medical management of hereditary angioedema: results from a large survey of US physicians. Ann Allergy Asthma Immunol 2011; 106:316-322.e4. [PMID: 21457880 DOI: 10.1016/j.anai.2010.12.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Revised: 11/29/2010] [Accepted: 12/14/2010] [Indexed: 10/18/2022]
Abstract
BACKGROUND Hereditary angioedema (HAE) is a potentially life-threatening condition that affects approximately 1 in 50,000 persons. There are no known surveys of US physicians' knowledge and experience regarding the epidemiology, diagnosis, and management of HAE. OBJECTIVE This survey of physicians treating patients with HAE assessed physician characteristics, diagnostic and treatment practices, factors that influence physician and patient treatment choices, and physician awareness of new therapies. METHODS From October 2009 to February 2010, physicians (N = 172) voluntarily completed an online survey developed by physician-investigators. Data were analyzed with descriptive statistics. RESULTS Most physicians (73.8%) managed 5 patients or fewer in diverse practice settings. Laboratory testing was considered most important in establishing a diagnosis. Fresh frozen plasma and C1 esterase inhibitors were the most frequently administered treatments for acute events; nearly 50% of respondents prescribed C1 esterase inhibitor for acute attacks. More than 80% of respondents prescribed androgens for long-term prophylaxis. Approximately half of respondents were aware of, and likely to use, new therapies for HAE. Other than efficacy, adverse effects were the most important factor that influenced physicians' treatment recommendations, whereas physicians perceived that patients were most influenced by adverse effects and cost. CONCLUSIONS Wide variability exists in the treatment of patients with HAE. Many patients experience acute attacks that require emergency care or hospitalization. Androgens and fresh frozen plasma are frequently used despite recent availability of effective condition-specific agents, and many physicians are only somewhat aware of medications newly approved by the US Food and Drug Administration. Because the survey was completed shortly after approval of additional HAE therapies by the US Food and Drug Administration, these data will be useful for tracking changes in HAE treatment over time.
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Affiliation(s)
- Marc Riedl
- Section of Clinical Immunology and Allergy, Department of Medicine, University of California, Los Angeles, David Geffen School of Medicine, 90095, USA.
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Giavina-Bianchi P, França AT, Grumach AS, Motta AA, Fernandes FR, Campos RA, Valle SO, Rosário NA, Sole D. Brazilian guidelines for the diagnosis and treatment of hereditary angioedema. Clinics (Sao Paulo) 2011; 66:1627-36. [PMID: 22179171 PMCID: PMC3164416 DOI: 10.1590/s1807-59322011000900021] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2011] [Accepted: 05/01/2011] [Indexed: 01/16/2023] Open
Abstract
Hereditary angioedema is an autosomal dominant disease characterized by edema attacks with multiple organ involvement. It is caused by a quantitative or functional deficiency of the C1 inhibitor, which is a member of the serine protease inhibitor family. Hereditary angioedema is unknown to many health professionals and is therefore an underdiagnosed disease. The causes of death from hereditary angioedema include laryngeal edema with asphyxia. The estimated mortality rate in patients in whom the disease goes undetected and who are therefore incorrectly treated is 25-40%. In addition to edema of the glottis, hereditary angioedema often results in edema of the gastrointestinal tract, which can be incapacitating. Patients with hereditary angioedema may undergo unnecessary surgical interventions because the digestive tract can be the primary or only organ system involved, thus mimicking acute surgical abdomen. It is estimated that patients with hereditary angioedema experience some degree of disability 20-100 days per year. The Experts in Clinical Immunology and Allergy of the "Associação Brasileira de Alergia e Imunopatologia -ASBAI" developed these guidelines for the diagnosis, therapy, and management of hereditary angioedema.
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Nzeako UC. Diagnosis and management of angioedema with abdominal involvement: A gastroenterology perspective. World J Gastroenterol 2010; 16:4913-21. [PMID: 20954277 PMCID: PMC2957599 DOI: 10.3748/wjg.v16.i39.4913] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Abdominal involvement in angioedema is often a challenge to diagnose. Acute onset abdominal pain is its most common presenting symptom, and misdiagnosis may lead to unnecessary surgical intervention. Familiarity with the types and presentations of angioedema can be invaluable to clinicians as they consider the differential diagnoses of a patient presenting with abdominal pain. Detailed personal and family histories, careful physical examination of the patient, combined with knowledge of angioedema types, can help clinicians perform their diagnostic evaluation. An accurate diagnosis is essential in order to provide appropriate treatment to patients with angioedema. Depending upon the diagnosis, treatment may be the avoidance of provoking factors (such as allergens or medications), inhibiting histamine-provoked reactions, or treating C1 esterase inhibitor deficiency.
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Ebo DG, Verweij MM, De Knop KJ, Hagendorens MM, Bridts CH, De Clerck LS, Stevens WJ. Hereditary angioedema in childhood: an approach to management. Paediatr Drugs 2010; 12:257-68. [PMID: 20593909 DOI: 10.2165/11532590-000000000-00000] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Hereditary angioedema (HAE) is an inherited disorder characterized by recurrent, circumscribed, non-pitting, non-pruritic, and rather painful subepithelial swelling of sudden onset, which fades during the course of 48-72 hours, but can persist for up to 1 week. Lesions can be solitary or multiple, and primarily involve the extremities, larynx, face, esophagus, and bowel wall. Patients with HAE experience angioedema because of a defective control of the plasma kinin-forming cascade that is activated through contact with negatively charged endothelial macromolecules leading to binding and auto-activation of coagulation factor XII, activation of prekallikrein to kallikrein by factor XIIa, and cleavage of high-molecular-weight kininogen by kallikrein to release the highly potent vasodilator bradykinin. Three forms of HAE have currently been described. Type I and type II HAE are rare autosomal dominant diseases due to mutations in the C1-inhibitor gene (SERPING1). C1-inhibitor mutations that cause type I HAE occur throughout the gene and result in truncated or misfolded proteins with a deficiency in the levels of antigenic and functional C1-inhibitor. Mutations that cause type II HAE generally involve exon 8 at or adjacent to the active site, resulting in an antigenically intact but dysfunctional mutant protein. In contrast, type III HAE (also called estrogen-dependent HAE) is characterized by normal C1-inhibitor activity. The diagnosis of HAE is suggested by a positive family history, the absence of accompanying pruritus or urticaria, the presence of recurrent gastrointestinal attacks of colic, and episodes of laryngeal edema. Estrogens may exacerbate attacks, and in some patients attacks are precipitated by trauma, inflammation, or psychological stress. For type I and type II HAE, diminished C4 concentrations are highly suggestive for the diagnosis. Further laboratory diagnosis depends on demonstrating a deficiency of C1-inhibitor antigen (type I) in most kindreds, but some kindreds have an antigenically intact but dysfunctional protein (type II) and require a functional assay to establish the diagnosis. There are no particular laboratory findings in type III HAE. Prophylactic administration of either 17alpha-alkylated androgens or synthetic antifibrinolytic agents has proven useful in reducing the frequency or severity of attacks. Plasma-derived C1-inhibitor concentrate, recombinant C1-inhibitor, ecallantide (DX88; a plasma kallikrein inhibitor) and icatibant (a bradykinin B(2) receptor antagonist) have demonstrated significant efficacy in the treatment of acute attacks, whereas the C1-inhibitor concentrate has also provided a significant benefit as long-term prophylaxis. However, these drugs are not licensed in all countries and are not always readily available.
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Affiliation(s)
- Didier G Ebo
- Department of Immunology, Allergology and Rheumatology, University Hospital Antwerp, Antwerp University, Universiteitsplein 1, Antwerp, Belgium
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Affiliation(s)
- Bruce L Zuraw
- University of California at San Diego and the Veterans Affairs Medical Center, San Diego, USA.
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Montalto M, Ancarani F, Santoro L, Curigliano V, Rotondi F, Gallo A, Gasbarrini G. Gastrointestinal Involvement in a Case of Hereditary Angioedema: Could the Early Weaning Have Had a Role? Am J Med Sci 2007; 334:231-3. [PMID: 17873543 DOI: 10.1097/maj.0b013e3181425289] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Hereditary angioedema (HAE) is a noninflammatory disorder due to reduced C1-inhibitor level and/or function and characterized by recurrent, circumscribed, and self-limiting episodes of cutaneous and mucous membrane swellings involving different organs. A heterogeneous group of mutations in the C1-inhibitor gene have been found. HAE might present with diverse clinical pictures, even within families with the same mutation, but the cause of this variability is not known yet. We describe the case of type II HAE in a young adult presenting with recurrent abdominal pain for many years, occasionally associated with ascites. We suppose that an early weaning might have influenced his phenotype, making his gastrointestinal tract a "vulnerable organ," in which hereditary angioedema could express itself.
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Affiliation(s)
- Massimo Montalto
- Department of Internal Medicine, Catholic University, Rome, Italy.
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Ricketti AJ, Cleri DJ, Ramos-Bonner LS, Vernaleo JR. Hereditary angioedema presenting in late middle age after angiotensin-converting enzyme inhibitor treatment. Ann Allergy Asthma Immunol 2007; 98:397-401. [PMID: 17458439 DOI: 10.1016/s1081-1206(10)60889-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND Angioedema due to Cl esterase inhibitor (CI-INH) deficiency may be hereditary (HAE), commonly first occurring in childhood, or acquired (AAE), with onset usually in middle age. Type I HAE exhibits low levels of functionally normal C1-INH. Dysfunctional Cl-INH typifies type II HAE. Patients with type I AAE have low levels of Cl-INH, Clq complement, and C4 complement. In type II AAE, there is immune blockade of C1-INH. OBJECTIVE To describe a man who first presented at the age of 52 years with type I HAE triggered by the administration of an angiotensin-converting enzyme (ACE) inhibitor. METHODS The patient had C1-INH levels, a complement profile, and a lack of underlying co-pathology that led to the diagnosis of type I HAE triggered by the administration of an ACE inhibitor. RESULTS The patient presented with life-threatening angioedema. His C4 complement and Cl-INH serum levels were below the reference ranges, and his C3 complement, total hemolytic complement assay, and Clq complement levels remained within the reference ranges. During the 10 years between his initial episode of angioedema and the second, he had not developed any secondary medical conditions, and he had been taking the ACE inhibitor lisinopril for 7 years. CONCLUSION Physicians must remain aware of the possibility of unmasking HAE in the adult and geriatric population with the common use of ACE inhibitors for the treatment of hypertension, cardiovascular diseases, and metabolic diseases.
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Affiliation(s)
- Anthony J Ricketti
- Department of Medicine and Section of Allergy and Immunology, St Francis Medical Center, Trenton, New Jersey 08629, USA
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Prematta M, Gibbs JG, Pratt EL, Stoughton TR, Craig TJ. Fresh frozen plasma for the treatment of hereditary angioedema. Ann Allergy Asthma Immunol 2007; 98:383-8. [PMID: 17458436 DOI: 10.1016/s1081-1206(10)60886-1] [Citation(s) in RCA: 108] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Fresh frozen plasma (FFP) has been used as a treatment option for patients with hereditary angioedema (HAE) because it contains Cl esterase inhibitor, and alternate therapies are not yet available in the United States. However, because FFP also contains other substrates, it has been hypothesized to have the potential to worsen or precipitate an acute attack of HAE. OBJECTIVE To research patient records and the medical literature to determine whether FFP can exacerbate symptoms or precipitate an attack of HAE. METHODS The following keywords were searched in PubMed and OVID: hereditary angioedema, angioedema and fresh frozen plasma, angioedema and FFP, and hereditary angioneurotic edema. English-language articles were searched from 1966 to the present. Also, after institutional review board approval, the medical records of patients with HAE at our institution who have received FFP since 1990 were reviewed to determine if there was evidence that FFP exacerbated the symptoms of HAE. RESULTS The English-language literature review and our patient medical record review failed to identify instances when FFP exacerbated symptoms of HAE or precipitated an attack. Several reports and our experience suggest that FFP is an effective prophylactic agent before surgery and for treatment of acute HAE attacks without evidence of exacerbation or initiation of symptoms. CONCLUSIONS FFP seems to be safe and effective in preventing exacerbations of HAE before surgery and for acute exacerbations of HAE without evidence of it initiating an attack or worsening a preexisting attack.
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Affiliation(s)
- Michael Prematta
- Allergy, Asthma and Immunology Section, Penn State University, Hershey Medical Center, Hershey, Pennsylvania, USA.
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Hermans C. Successful management with C1-inhibitor concentrate of hereditary angioedema attacks during two successive pregnancies: a case report. Arch Gynecol Obstet 2007; 276:271-6. [PMID: 17653743 DOI: 10.1007/s00404-007-0329-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2006] [Accepted: 01/16/2007] [Indexed: 10/23/2022]
Abstract
BACKGROUND [corrected] Hereditary angioedema (HAE) is a rare genetic disorder caused by a deficiency of the plasma protein C1 inhibitor (C1-INH). HAE is characterised by the onset of angioedema, which may develop in one or several organs, and may last from a few hours to several days. Oedema of the upper airway can be life-threatening. As a result of hormonal changes, some women experience more frequent angioedema attacks during pregnancy. During pregnancy, antifibrinolytic agents should only be used with caution, and attenuated androgens are contraindicated; therefore, replacement therapy with C1-INH concentrate represents one of few therapeutic options, but it is not widely documented. CASE STUDY We report the first case study of the successful management with regular infusions of C1-INH concentrate, of two successive pregnancies in a patient with HAE. During the second half of the first pregnancy, C1-INH was administered on demand at home. For the second pregnancy, on demand treatment was intensified to prophylactic therapy, with once or twice weekly infusions from the middle of the second trimester in order to efficiently control the frequent attacks. CONCLUSIONS This report illustrates that HAE can be successfully managed during pregnancy with C1-INH infusions at home. Since the number of crises may vary between pregnancies, the treatment regimen must be adapted to the patient's need.
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Affiliation(s)
- Cedric Hermans
- Haemostasis and Thrombosis Unit, Department of Haematology, Cliniques Universitaires Saint-Luc, Catholic University of Louvain, Avenue Hippocrate 10, 1200, Brussels, Belgium.
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Levy JH, O'Donnell PS. The therapeutic potential of a kallikrein inhibitor for treating hereditary angioedema. Expert Opin Investig Drugs 2007; 15:1077-90. [PMID: 16916274 DOI: 10.1517/13543784.15.9.1077] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Hereditary angioedema (HAE) manifests as intermittent, painful attacks of submucosal oedema affecting the larynx, gastrointestinal tract or limbs. Currently, acute treatment is available in Europe but not USA, and requires intravenous administration of a pooled blood product. HAE is most likely caused by dysinhibition of the contact cascade, resulting in overproduction of bradykinin. DX-88 (ecallantide, Dyax Corp.) is a highly specific recombinant plasma kallikrein inhibitor that halts the production of bradykinin and can be dosed subcutaneously. In a placebo-controlled Phase II trial in patients with HAE, DX-88 resulted in significant improvement in symptoms compared with placebo. A Phase III trial is ongoing. This review explains the pathophysiology of HAE and the mechanism by which DX-88, a non-intravenous, nonplasma-derived therapy, might improve the disease, and discusses the clinical course of HAE and available treatments. Finally, it explores the potential value and efficacy of DX-88 in treating HAE.
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Affiliation(s)
- Jerrold H Levy
- Emory University Hospital, 1364 Clifton Road, North East Atlanta, GA 30322, USA.
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Bork K, Staubach P, Eckardt AJ, Hardt J. Symptoms, course, and complications of abdominal attacks in hereditary angioedema due to C1 inhibitor deficiency. Am J Gastroenterol 2006; 101:619-27. [PMID: 16464219 DOI: 10.1111/j.1572-0241.2006.00492.x] [Citation(s) in RCA: 186] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Recurrent abdominal attacks belong to the cardinal and most distressing symptoms of hereditary angioedema (HAE) due to C1 inhibitor deficiency. They are characterized by crampy pain, but may include vomiting, diarrhea, and other features. Detailed clinical data about the symptoms and course of abdominal attacks have not been reported. METHODS We retrospectively observed a total of 33,671 abdominal attacks in 153 patients with HAE including a prospectively examined subgroup of 23 patients. Symptoms, course, frequency of attacks, and complications were analyzed. RESULTS The relation of mild, moderate, and severe attacks was 1:1.4:5.6 in the prospective part of the study. Extra-abdominal symptoms preceded the abdominal symptoms. The mean maximal pain score was 8.4 (range 1-10). Vomiting occurred in 73% (24,696) and diarrhea in 41% (13,682) of the attacks. Circulatory collapse accompanied 4.4% (1,468) of the attacks, with loss of consciousness (LOC) occurring in 2.2% (739). Nine patients could clearly distinguish two types of abdominal attacks: vomiting and diarrhea. Rare complications included tetany, hemorrhagic stools, and intussusception of the colon. In 28% (43) of the patients, recurrent abdominal attacks had started before the characteristic swelling of the skin had ever occurred. A model is proposed to classify the severity of the attacks and to describe the clinical course. CONCLUSIONS Abdominal attacks in HAE constitute a more disabling and complex syndrome than previously assumed. Our results add to the understanding of symptoms and course of HAE and may aid in the early recognition of an impending attack and improve clinical management.
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Affiliation(s)
- Konrad Bork
- Department of Dermatology, Johannes Gutenberg University, Langenbeckstrasse 1, 55131 Mainz, Germany
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Agostoni A, Aygören-Pürsün E, Binkley KE, Blanch A, Bork K, Bouillet L, Bucher C, Castaldo AJ, Cicardi M, Davis AE, De Carolis C, Drouet C, Duponchel C, Farkas H, Fáy K, Fekete B, Fischer B, Fontana L, Füst G, Giacomelli R, Gröner A, Hack CE, Harmat G, Jakenfelds J, Juers M, Kalmár L, Kaposi PN, Karádi I, Kitzinger A, Kollár T, Kreuz W, Lakatos P, Longhurst HJ, Lopez-Trascasa M, Martinez-Saguer I, Monnier N, Nagy I, Németh E, Nielsen EW, Nuijens JH, O'grady C, Pappalardo E, Penna V, Perricone C, Perricone R, Rauch U, Roche O, Rusicke E, Späth PJ, Szendei G, Takács E, Tordai A, Truedsson L, Varga L, Visy B, Williams K, Zanichelli A, Zingale L. Hereditary and acquired angioedema: problems and progress: proceedings of the third C1 esterase inhibitor deficiency workshop and beyond. J Allergy Clin Immunol 2004; 114:S51-131. [PMID: 15356535 PMCID: PMC7119155 DOI: 10.1016/j.jaci.2004.06.047] [Citation(s) in RCA: 437] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2004] [Revised: 06/24/2004] [Accepted: 06/24/2004] [Indexed: 01/13/2023]
Abstract
Hereditary angioedema (HAE), a rare but life-threatening condition, manifests as acute attacks of facial, laryngeal, genital, or peripheral swelling or abdominal pain secondary to intra-abdominal edema. Resulting from mutations affecting C1 esterase inhibitor (C1-INH), inhibitor of the first complement system component, attacks are not histamine-mediated and do not respond to antihistamines or corticosteroids. Low awareness and resemblance to other disorders often delay diagnosis; despite availability of C1-INH replacement in some countries, no approved, safe acute attack therapy exists in the United States. The biennial C1 Esterase Inhibitor Deficiency Workshops resulted from a European initiative for better knowledge and treatment of HAE and related diseases. This supplement contains work presented at the third workshop and expanded content toward a definitive picture of angioedema in the absence of allergy. Most notably, it includes cumulative genetic investigations; multinational laboratory diagnosis recommendations; current pathogenesis hypotheses; suggested prophylaxis and acute attack treatment, including home treatment; future treatment options; and analysis of patient subpopulations, including pediatric patients and patients whose angioedema worsened during pregnancy or hormone administration. Causes and management of acquired angioedema and a new type of angioedema with normal C1-INH are also discussed. Collaborative patient and physician efforts, crucial in rare diseases, are emphasized. This supplement seeks to raise awareness and aid diagnosis of HAE, optimize treatment for all patients, and provide a platform for further research in this rare, partially understood disorder.
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Key Words
- aae
- acquired angioedema
- angioedema
- c1 esterase inhibitor
- c1-inh
- hae
- hane
- hano
- hereditary angioedema
- hereditary angioneurotic edema
- angioneurotic edema
- chemically induced angioedema
- human serping1 protein
- aae, acquired angioedema
- aaee, (italian) voluntary association for the study, therapy, and fight against hereditary angioedema
- ace, angiotensin-converting enzyme
- app, aminopeptidase p
- at2, angiotensin ii
- b19v, parvovirus b19
- bmd, bone mineral density
- bvdv, bovine viral diarrhea virus
- c1, first component of the complement cascade
- c1-inh, c1 esterase inhibitor
- c1nh, murine c1 esterase inhibitor gene
- c1nh, human c1 esterase inhibitor gene
- c2, second component of the complement cascade
- c3, third component of the complement cascade
- c4, fourth component of the complement cascade
- c5, fifth component of the complement cascade
- ccm, chemical cleavage of mismatches
- ch50, total hemolytic complement, 50% cell lysis
- cmax, maximum concentration
- cpmp, committee for proprietary medicinal products
- cpv, canine parvovirus
- dhplc, denaturing hplc
- ff, (ovarian) follicular fluid
- ffp, fresh frozen plasma
- hae, hereditary angioedema
- hae-i, hereditary angioedema type i
- hae-ii, hereditary angioedema type ii
- haea, us hae association
- hav, hepatitis a virus
- hbsag, hepatitis b surface antigen
- hbv, hepatitis b virus
- hcv, hepatitis c virus
- hk, high molecular weight kininogen
- hrt, hormone replacement therapy
- huvs, hypocomplementemic urticaria-vasculitis syndrome
- lh, luteinizing hormone
- masp, mannose-binding protein associated serine protease
- mbl, mannan-binding lectin
- mfo, multifollicular ovary
- mgus, monoclonal gammopathies of undetermined significance
- mr, molecular mass
- nat, nucleic acid amplification technique
- nep, neutral endopeptidase
- oc, oral contraceptive
- omim, online mendelian inheritance in man (database)
- pco, polycystic ovary
- pct, primary care trust
- prehaeat, novel methods for predicting, preventing, and treating attacks in patients with hereditary angioedema
- prv, pseudorabies virus
- rhc1-inh, recombinant human c1 esterase inhibitor
- rtpa, recombinant tissue-type plasminogen activator
- shbg, sex hormone binding globulin
- ssca, single-stranded conformational analysis
- tpa, tissue-type plasminogen activator
- uk, united kingdom
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Amar L, Lidove O, Kahn JE, Cordoliani F, Frémeaux-Bacchi V, Dragon-Durey MA, Chauveheid MP, Blétry O. Hereditary angio-oedema: effective treatment with the progestogen-only pill in a young woman. Br J Dermatol 2004; 151:713-4. [PMID: 15377369 DOI: 10.1111/j.1365-2133.2004.06152.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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A tracheostomy obturator for a patient with hereditary angioneurotic edema. J Prosthet Dent 2004. [DOI: 10.1016/j.prosdent.2004.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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De Serres J, Gröner A, Lindner J. Safety and efficacy of pasteurized C1 inhibitor concentrate (Berinert P) in hereditary angioedema: a review. jean.de.serres@aventis.com. Transfus Apher Sci 2004; 29:247-54. [PMID: 14572817 DOI: 10.1016/j.transci.2003.08.006] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
BACKGROUND Hereditary angioedema caused by C1 inhibitor deficiency can be life threatening. Acute exacerbations are treated with intravenous purified, pasteurized C1 esterase inhibitor concentrate at doses of 500-1000 IU. METHODS We reviewed the literature about safety and efficacy of the C1 inhibitor concentrate used in Canada (Berinert P) or relevant to it. RESULTS Post-marketing experience since 1985 is reassuring. There were few adverse events and no transmission of infection with the pasteurized product. A number of case reports, retrospective studies and few randomized or non-randomized prospective studies have shown good efficacy measured as clinical resolution of symptoms or in time to resolution, time to relief or time to improvement. CONCLUSIONS There are numerous observational studies showing good efficacy and safety and a long post-marketing experience although few randomized placebo-controlled trials.
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Affiliation(s)
- Jean De Serres
- Aventis Behring Canada, 55-1200 Metcalfe St., Suite 1200, Ottawa, ON K1P-6L5, Canada.
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47
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Bork K, Barnstedt SE. Laryngeal edema and death from asphyxiation after tooth extraction in four patients with hereditary angioedema. J Am Dent Assoc 2003; 134:1088-94. [PMID: 12956349 DOI: 10.14219/jada.archive.2003.0323] [Citation(s) in RCA: 125] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Recurrent angioedema is the hallmark of various inherited or acquired angioedema diseases. Hereditary angioedema, or HAE, due to C1 inhibitor, or C1NH, deficiency has considerable implications for dental health care providers because dental surgery may trigger distressing and even life-threatening episodes. CASE DESCRIPTION The authors reviewed the literature, focusing on the pathogenesis, clinical signs and treatment of HAE. They also provided case reports of four patients who died from laryngeal edema induced by tooth extraction. In patients with HAE, dental surgery--including tooth extraction--may be followed by self-limiting edema episodes, including lip swelling, facial swelling, tongue edema and laryngeal edema with upper airway obstruction. Preoperative prophylaxis has been performed with attenuated androgens, fresh frozen plasma, C1NH concentrate and antifibrinolytics. The four patients described underwent tooth extraction, which, after a symptom-free latency of four to 30 hours, provoked laryngeal edema. Three of the patients died of asphyxiation the night after surgery, and the fourth died on the second night. In three of the patients, laryngeal edema had not occurred previously. CLINICAL IMPLICATIONS Before undergoing dental surgery, patients with a history of recurrent angioedema should be evaluated for C1NH deficiency. If it is present, they are at risk of developing life-threatening laryngeal edema.
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Bork K, Fischer B, Dewald G. Recurrent episodes of skin angioedema and severe attacks of abdominal pain induced by oral contraceptives or hormone replacement therapy. Am J Med 2003; 114:294-8. [PMID: 12681457 DOI: 10.1016/s0002-9343(02)01526-7] [Citation(s) in RCA: 128] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE Recurrent angioedema, characterized by skin swelling, colicky attacks of abdominal pain, and life-threatening laryngeal edema, can be either hereditary or acquired. According to anecdotal reports, it may be associated with use of oral contraceptives and hormone replacement therapy. We investigated potential interactions between these medications and various types of recurrent angioedema in a large cohort of women. METHODS Women with recurrent angioedema (n = 516) underwent a thorough medical evaluation. They were then classified by type of angioedema, using standard criteria. RESULTS Of the 516 women, 228 (44%) had used oral contraceptives or hormone replacement therapy, including 103 (45%) with urticaria-related angioedema, 50 (22%) with idiopathic angioedema, 39 (17%) with hereditary angioedema type III, 32 (14%) with hereditary angioedema type I, and 4 (2%) with angioedema induced by angiotensin-converting enzyme inhibitors. Oral contraceptives or hormone replacement therapy led to angioedema attacks in 46 women (20%), including 20 (63%) of the women with hereditary angioedema type I, 24 (62%) of those with hereditary angioedema type III, and 2 (4%) of those with idiopathic angioedema. These 46 women included 26 in whom symptoms occurred for the first time after use of these medications and 20 in whom pre-existing recurrent angioedema worsened considerably. CONCLUSION Oral contraceptives or hormone replacement therapy can either induce or exacerbate symptoms of hereditary angioedema type I or type III, or idiopathic angioedema. However, many women with these diseases tolerate these medications without having any effects on their angioedema.
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Affiliation(s)
- Konrad Bork
- Department of Dermatology, Johannes-Gutenberg University, Langenbeckstrasse 1, 55131 Mainz, Germany.
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Abstract
Osteoporosis is a systemic skeletal disease characterized by low bone mass and micro architectural deterioration of the bone scaffold that result in increased bone fragility and susceptibility to fracture. It is one of the most common disorders of the elderly and is estimated to effect 75 million people in Europe, Japan and the USA. The purpose of screening for osteoporosis is to identify individuals who are likely to benefit from treatment. The fact that dental radiographs are regularly made on a large fraction of the adult population makes their potential use as a marker of skeletal health an exciting avenue of research. In the last four decades numerous research teams have reported oral radiographic findings associated with osteoporosis. The preponderance of the evidence shows that the jaws of subjects with osteoporosis show reduced bone mass and altered morphology. Clinically useful predictions of individuals most likely to develop osteoporotic fractures will require a multifactorial model including both radiographic and clinical findings. Future efforts should continue to search for oral radiographic signs with high sensitivity and specificity for osteoporosis, identify clinical signs available in the dental office associated with osteoporosis, develop multidisciplinary classification methods including both radiographic and clinical parameters, and automate radiographic and clinical analyses as much as possible to minimize the involvement of the dentist as well as to standardize data collection.
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Affiliation(s)
- S C White
- Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, California 90095-1668, USA.
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Farkas H, Harmat G, Kaposi PN, Karádi I, Fekete B, Füst G, Fáy K, Vass A, Varga L. Ultrasonography in the diagnosis and monitoring of ascites in acute abdominal attacks of hereditary angioneurotic oedema. Eur J Gastroenterol Hepatol 2001; 13:1225-30. [PMID: 11711780 DOI: 10.1097/00042737-200110000-00016] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Hereditary angioneurotic oedema (HAE) is a rare cause of ascites. As acute abdominal attacks of the disease can mimic surgical emergencies, prompt and accurate diagnosis is essential. This study was undertaken to evaluate the usefulness of serial abdominal ultrasound (US) examinations. PATIENTS AND METHODS Seventy patients with HAE were followed up for almost a decade. All patients presenting with an acute oedematous attack underwent abdominal US, which was then repeated 24 and 48 h after appropriate therapy. RESULTS Twenty-two acute oedematous attacks with abdominal complaints severe enough to justify hospital admission occurred in the study population. Abdominal US performed during the attack showed oedematous thickening of the intestinal wall in 80% of cases and invariably demonstrated the presence of free peritoneal fluid in all patients. Rapid symptomatic relief achieved by treatment was accompanied by the significant regression of US abnormalities. CONCLUSIONS Transitory ascites demonstrated by abdominal US is a clue to the diagnosis of an acute abdominal attack of HAE. The possibility of HAE should always be considered whenever unexplained abdominal pain recurs with or without ascites.
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Affiliation(s)
- H Farkas
- Kútvölgyi Clinical Centre, Allergology and Angio-oedema Outpatient Clinic, Semmelweis University, Budapest, Hungary.
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