Hereditary Angioedema: Management of Laryngeal Attacks

2011 ◽  
Vol 25 (6) ◽  
pp. 379-382 ◽  
Author(s):  
Sandra C. Christiansen ◽  
Bruce L. Zuraw

Background Hereditary angioedema (HAE) patients suffering from laryngeal attacks in the United States faced severely limited treatment options until 2008. These potentially life-threatening episodes occur in over one-half of the patients affected by HAE during their lifetimes. Acute therapy had been relegated to supportive care, intubation, and consideration of fresh frozen plasma (FFP)–-the latter with the potential for actually accelerating the speed and severity of the swelling. Methods In this article we will review the recently approved and emerging HAE treatments that have evolved from the recognition that bradykinin generation is the fundamental abnormality leading to attacks of angioedema. Results Acute therapy for laryngeal attacks will be discussed including purified plasma–derived C1 inhibitor (C1INH), recombinant C1INH, an inhibitor of plasma kallikrein (ecallantide), and a B2 receptor antagonist (icatibant). Prophylactic care has also been transformed from a reliance on attenuated androgens with their attendant side effects to C1INH replacement. Conclusion The arrival of these novel therapies promises to transform the future management of HAE.

2016 ◽  
Vol 2016 ◽  
pp. 1-3
Author(s):  
Katherine L. March ◽  
Kruti S. Patel ◽  
Jennifer D. Twilla

Treatment strategies for acute toxicity following massive ingestion of warfarin are not well described in the literature. Warfarin is the primary oral anticoagulation agent used in the treatment of thromboembolic disease, and patients with acute toxicity are at risk for life-threatening hemorrhages. Treatment options include phytonadione (vitamin K1), fresh frozen plasma (FFP), and prothrombin complex concentrates (PCCs) used alone or in combination. FFP and PCC can be associated with volume complications, undesirable thromboembolic events, and increased costs. We describe the case of a 63-year-old female with acute warfarin toxicity following a massive ingestion of warfarin (420 mg–450 mg) in an attempt to commit suicide. Upon arrival to the emergency department, serial INR checks were initiated to help guide dosing strategy and later adjusted based on INR response to treatment using only phytonadione.


2021 ◽  
Vol 42 (3) ◽  
pp. 205-213
Author(s):  
Oyindamola Ajewole ◽  
Mosopefoluwa Lanlokun ◽  
Stevenson Dimanche ◽  
Timothy Craig

Background: Hereditary Angioedema (HAE) is a rare, autosomal dominant, life threatening disease, secondary to the deficiency of C1-inhibitor, dysfunction of C1-inhibitor or inadequate control of the contact pathway. Presentation includes recurrent swelling of the skin, upper airway and the abdomen. Trauma can precipitate attacks, which in the airway can lead to asphyxia. For this reason, short term prophylaxis (STP) may be indicated before medical, surgical and dental procedures. The goal of the manuscript is to review short term prophylaxis for children of all ages. Methods: We searched the following search words: children, pediatric, adolescent, plasma derived C1-inhibitor, recombinant C1-inhibitor, surgery, medical procedures, prophylaxis, dental, Hereditary Angioedema, tranexamic acid, androgens, fresh frozen plasma, short term prophylaxis, lanadelumab, subcutaneous C1-inhibitor in Google Scholar and in PubMed to develop our results. Results: STP should be discussed at every visit. Plans should be individualized based upon the procedure, therapies available and shared decision making with patient/parent. For high risk procedures plasma derived C1-inhibitor should be used at 20 units/kg just prior to the procedure. Alternative agents for STP include recombinant C1-inhibitor, fresh frozen plasma, androgens, or tranexamic acid. In all cases, with or without the use of STP, 2 doses of on-demand therapy should be available in case of an attack. Conclusion: Herein, we review the published data on STP for pediatric patients with HAE and discuss first-line options, and off label use of medications, as well as review the guidelines pertaining to short term prophylaxis.


1976 ◽  
Vol 36 (01) ◽  
pp. 071-077 ◽  
Author(s):  
Daniel E. Whitman ◽  
Mary Ellen Switzer ◽  
Patrick A. McKee

SummaryThe availability of factor VIII concentrates is frequently a limitation in the management of classical hemophilia. Such concentrates are prepared from fresh or fresh-frozen plasma. A significant volume of plasma in the United States becomes “indated”, i. e., in contact with red blood cells for 24 hours at 4°, and is therefore not used to prepare factor VIII concentrates. To evaluate this possible resource, partially purified factor VIII was prepared from random samples of fresh-frozen, indated and outdated plasma. The yield of factor VIII protein and procoagulant activity from indated plasma was about the same as that from fresh-frozen plasma. The yield from outdated plasma was substantially less. After further purification, factor VIII from the three sources gave a single subunit band when reduced and analyzed by sodium dodecyl sulfate polyacrylamide gel electrophoresis. These results indicate that the approximately 287,000 liters of indated plasma processed annually by the American National Red Cross (ANRC) could be used to prepare factor VIII concentrates of good quality. This resource alone could quadruple the supply of factor VIII available for therapy.


2021 ◽  
Vol 14 (8) ◽  
pp. e239901
Author(s):  
Faheema Hasan ◽  
Anshul Gupta ◽  
Dinesh Chandra ◽  
Soniya Nityanand

Thrombotic thrombocytopenic purpura (TTP) is a life-threatening disease characterised by thrombocytopenia, microangiopathic haemolytic anaemia and microvascular thrombosis. Congenital TTP accounting for less than 5% of all TTP cases can have a late presentation in adulthood mostly triggered by predisposing factors such as infection, pregnancy and inflammation. We present a case of a 23-year-old woman who presented to us in the postpartum period with mesenteric artery thrombosis with infarcts and later was diagnosed as a case of TTP based on congenital a disintegrin and metalloproteinase with thrombospondin type 1 repeats 13 (ADAMTS-13) deficiency detected on ADAMTS-13 levels and gene sequencing. She was successfully managed initially with therapeutic plasma exchanges and is now on prophylactic fortnightly fresh frozen plasma infusions at 15 mL/kg body weight and continues to be in remission.


Author(s):  
Sufia Athar ◽  
Noureddine Korichi ◽  
Yousra Shehada Siam

Hereditary angioedema (HAE) caused by C1-esterase inhibitor deficiency is an autosomal-dominant disease caused by a mutation in the C1-inhibitor gene. It is a rare disease that is often worsened during pregnancy and childbirth. HAE, though uncommon but if untreated it may lead to maternal death.  The case report presents the successful management of a 24 years old, G2P1, with hereditary angioedema caused by C1-esterase inhibitor deficiency. This patient was managed with a multidisciplinary approach by an obstetrician, an immunologist, an anaesthesiologist and a pediatrician. She had an uneventful antenatal period, labor was induced. She had precipitate delivery and soon after delivery had a flare up of the disease. It was successfully managed with fresh frozen plasma and close observation. 


Author(s):  
Jay Berger

Massive transfusion is defined as transfusion of 3 units of packed red blood cells in less than 1 hour in an adult, replacement of more than 1 blood volume in 24 hours, or replacement of more than 50% of blood volume in 3 hours. Massive transfusion protocols are implemented in cases of life-threatening hemorrhage after trauma, during a surgical procedure, or during childbirth. These protocols are intended to minimize the adverse effects of hypovolemia, dilutional anemia, metabolic complications, and coagulopathy with early empiric replacement of blood products and transfusion of fresh frozen plasma, platelets, and packed red blood cells in a composition that approximates that of whole blood.


2019 ◽  
Vol 12 (9) ◽  
pp. 100049 ◽  
Author(s):  
Nicole Wentzel ◽  
Angelica Panieri ◽  
Maryam Ayazi ◽  
Sipho Duncan Ntshalintshali ◽  
Zahra Pourpak ◽  
...  

Transfusion ◽  
2004 ◽  
Vol 44 (11) ◽  
pp. 1674-1675 ◽  
Author(s):  
Jonathan P. Wallis ◽  
Sunny Dzik

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