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Diagnosis and management of cold urticaria in cryoablation of atrial fibrillation: a case report.

ABSTRACT: Background:Cold-induced urticaria is triggered by exposure to local or environmental cold and manifests as localized or systemic pruritic papules, sometimes accompanied by angio-oedema and anaphylaxis representing a life-threatening condition. Therapy options of atrial fibrillation (AF) include catheter ablation with different energy sources, of which cryoenergy may be superior to other energy sources regarding safety and efficacy. Case summary:We report the case of a 60-year-old man suffering from symptomatic paroxysmal AF. The patient had a history of cold-induced urticaria without occurrence of systemic reactions to date. After successful pulmonary vein isolation (PVI) using cryoenergy, post-interventional oesophagogastroduodenoscopy and endosonography revealed newly occurred oedema in the middle oesophagus with inclusion of all oesophageal wall layers. Due to missing peri-atrial lesions, activation of cold urticaria during cryoablation rather than procedure-associated alterations was diagnosed. The patient reported no systemic or gastrointestinal symptoms after PVI. Discussion:We could demonstrate that cold urticaria can manifest as oesophageal angio-oedema in AF patients undergoing cryoablation. Therefore, these patients should be carefully considered for an alternative energy source for PVI or premedication with antihistamines when using cryoenergy.

SUBMITTER: Cordes F

PROVIDER: S-EPMC6939821 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature

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Diagnosis and management of cold urticaria in cryoablation of atrial fibrillation: a case report.

Cordes Friederike F Ellermann Christian C Ehrchen Jan J Ullerich Hansjoerg H Eckardt Lars L

European heart journal. Case reports 20191216 4

<h4>Background</h4>Cold-induced urticaria is triggered by exposure to local or environmental cold and manifests as localized or systemic pruritic papules, sometimes accompanied by angio-oedema and anaphylaxis representing a life-threatening condition. Therapy options of atrial fibrillation (AF) include catheter ablation with different energy sources, of which cryoenergy may be superior to other energy sources regarding safety and efficacy.<h4>Case summary</h4>We report the case of a 60-year-old ...[more]

PMID: 31912003

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Project description:RationaleAtrial fibrillation (AF) is encountered rarely in pregnancy. Management of maternal AF is challenging as it poses a threat to both maternal and fetal well-being.Patient concernsWe report a case of a 35 weeks pregnant woman who presented in emergency with sudden-onset palpitations and mild shortness of breath with no personal/family history of cardiac diseases.DiagnosesPatient's pulse was irregularly irregular with an average rate of 179 beats per minute. The obstetric examination was normal.DiagnosisHigh-sensitive cardiac troponin T (hs-cTnT) was elevated. The 12 lead electrocardiogram (ECG) confirmed AF. The obstetric ultrasound, electronic fetal heart rate (EFHR) trace, and maternal echocardiography were normal.InterventionsThe patient was admitted under joint cardiology and obstetric care and monitored with continuous telemetry. She was commenced on a therapeutic dose of low-molecular weight heparin (LMWH) and intravenous fluid. She received a single 200 Joule synchronized direct current (DC) shock under general anesthesia in operation theater, which reverted the rhythm back to normal. EFHR monitoring was normal pre- and post-DC cardioversion. We acknowledge the unwise use of therapeutic dose of LMWH before DC cardioversion (DCCV) because of a potential need for emergency cesarean delivery for maternal and/or fetal compromise.OutcomeThe patient remained well and in sinus rhythm after cardioversion. She was discharged home the following day on Flecainide (anti-arrhythmic) and therapeutic dose of low molecular weight heparin (LMWH) and followed up in outpatient clinics frequently. She had a baby at term and received prophylactic LMWH for 10 days post-cesarean. She was discharged from cardiology clinic when she was 10 weeks postnatal, and Flecainide was discontinued.LessonsWe are reporting this case because of the rarity of the condition and successful use of DCCV for treating maternal AF. High-sensitive cardiac troponin T (hs-cTnT) level is a useful laboratory indicator to gauge the severity of AF in pregnancy. We emphasize to make the arrangements for EFHR monitoring and potential cesarean delivery and advocate cautious use of thromboprophylaxis while planning for electrical cardioversion (ECV) for maternal AF.

Dataset Information

Diagnosis and management of cold urticaria in cryoablation of atrial fibrillation: a case report.

Publications

Diagnosis and management of cold urticaria in cryoablation of atrial fibrillation: a case report.

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