Dobutamine-induced Takotsubo syndrome in a paediatric heart transplant patient.

Takotsubo syndrome is a potentially reversible cause of acute systolic dysfunction. Takotsubo syndrome is rare in children, with no reported dobutamine-induced cases to date. We present a 14-year-old male with prior history of heart transplantation, who developed Takotsubo syndrome during dobutamine stress echocardiography. We highlight the importance of its early recognition to ensure supportive measures with avoidance of inotropic medications.

Protein-losing enteropathy recurrence after pediatric heart transplantation: Multicenter case series.

BACKGROUND: Protein-losing enteropathy (PLE) is a devastating complication of the Fontan circulation. Although orthotopic heart transplantation (HTx) typically results in resolution of PLE symptoms, isolated cases of PLE relapse have been described after HTx. METHODS: Patients with Fontan-related PLE who had undergone HTx at participating centers and experienced relapse of PLE during follow-up were retrospectively identified. Available data related to pre- and post-HTx characteristics and PLE events were collected. RESULTS: Eight patients from four different centers were identified. Median time from Fontan procedure to the development of PLE was 8 years, and median age at HTx was 17 years (range 7.7-21). In all patients, PLE resolved at a median time of 1 month after HTx (0.3-5). PLE recurrences occurred at a median time of 7.5 months after HTx (2-132). Each occurrence was associated with one or more significant clinical events; most commonly cellular- or antibody-mediated rejection; and less commonly graft dysfunction, infection, thrombosis, and posttransplant lymphoproliferative disease. PLE recurrences resolved after the successful treatment of the concomitant event, after a median time of 2 months in seven cases, while persisted and recurred in one patient in association with atypical mycobacterium infection and subsequent PTLD onset and relapses. Six patients were alive during follow-up at a median time of 4 years (1.3-22.5) after HTx. CONCLUSIONS: This is the largest series of PLE recurrence after HTx. All cases were associated with one or more concomitant and significant clinical events. PLE typically resolved after resolution of the inciting clinical event.

How Does Cross-Sectional Imaging Impact the Management of Patients With Single Ventricle After Bidirectional Cavopulmonary Connection?

BACKGROUND: There is currently no consensus regarding the use of surveillance cross-sectional imaging in pediatric patients after bidirectional cavopulmonary connection (BDCPC). We sought to determine how computed tomography with angiography (CTA) and cardiac magnetic resonance (CMR) imaging impacted the clinical management of pediatric patients after BDCPC. METHODS: A single-center retrospective study including patients with single ventricle who had BDCPC between 2010 and 2019, and CTA/CMR studies obtained in these patients, at ≤5 years of age, and with Glenn physiology. Repeat studies on the same patient were included if the clinical situation had changed. The impact of CTA/CMR studies was categorized as major, minor, or none. RESULTS: Twenty-four patients (63% male) and 30 imaging studies (22 CTAs) were included. 60% were obtained in patients with hypoplastic left heart syndrome (HLHS); most common indication was Follow-up after an intervention (23%). 6 CMRs were performed on stable HLHS patients as part of a research protocol, with no clinical concerns. The overall impact of CTA/CMR studies was major in 13 cases (43.3%). CTA/CMR studies performed ≥1 year of age (62.5% vs 21.4%, P = .02) and in non-HLHS patients (66.7% vs 27.8%, P = .035) were associated with major impact. Also, 2/6 Research studies were associated with a major impact. CONCLUSIONS: CTA/CMR imaging in pediatric patients with SV after BDCPC was associated with significant clinical impact in over 40% of cases, with a higher impact if obtained in patients ≥1 year of age and in non-HLHS patients. We cannot disregard the possibility of CMR as a surveillance imaging modality in this population.

Acute arterial embolism as the clinical presentation of a disseminated hydatidosis: case report. / Embolismo arterial agudo como forma de presentación clínica inicial de una hidatidosis diseminada: reporte de un caso.

Hydatidosis is a parasitic infection caused by the Echinococcus granulosus larvae, transmitted by the ingestion of infected food, characterized by the formation of cysts in vital organs. In Argentina, the disease is spread throughout the territory, constituting an important public health issue. The disease usually affects the liver and lungs. The affection of other organs is rare, and even more uncommon the affection of the heart. We present the case of a disseminated hydatidosis in a pediatric patient, whose initial clinical manifestation was an acute arterial embolism of the right limb caused by the rupture of a hydatidic cardiac cyst.

La hidatidosis es una zoonosis producida por el parásito Echinococcus granulosus. En el ciclo zoonótico del parásito, el hombre es un huésped intermediario y sufre la enfermedad tras la ingesta de alimentos y agua contaminados por la materia fecal de animales infectados. En Argentina, la enfermedad constituye un problema importante de salud pública. Suele manifestarse con compromiso hepático y pulmonar. La afectación de otros órganos, que incluyen el corazón, es infrecuente. Se presenta un caso de embolia arterial aguda como manifestación clínica inicial de una hidatidosis diseminada en un paciente pediátrico, a partir de la ruptura de un quiste hidatídico cardíaco.

Embolismo arterial agudo como forma de presentación clínica inicial de una hidatidosis diseminada: reporte de un caso / Acute arterial embolism as the clinical presentation of a disseminated hydatidosis: case report

La hidatidosis es una zoonosis producida por el parásito Echinococcus granulosus. En el ciclo zoonótico del parásito, el hombre es un huésped intermediario y sufre la enfermedad tras la ingesta de alimentos y agua contaminados por la materia fecal de animales infectados. En Argentina, la enfermedad constituye un problema importante de salud pública. Suele manifestarse con compromiso hepático y pulmonar. La afectación de otros órganos, que incluyen el corazón, es infrecuente.

Hydatidosis is a parasitic infection caused by the Echinococcus granulosus larvae, transmitted by the ingestion of infected food, characterized by the formation of cysts in vital organs. In Argentina, the disease is spread throughout the territory, constituting an important public health issue. The disease usually affects the liver and lungs. The affection of other organs is rare, and even more uncommon the affection of the heart. We present the case of a disseminated hydatidosis in a pediatric patient, whose initial clinical manifestation was an acute arterial embolism of the right limb caused by the rupture of a hydatidic cardiac cyst.