scholarly journals Hippocampal Necrosis in a Cat from Australia

2014 ◽  
Vol 2014 ◽  
pp. 1-4
Author(s):  
Carl Adagra ◽  
Susan Amanda Piripi

This paper reports findings from a feline case of hippocampal necrosis. A seven-year-old neutered female cat was seen with a history of behavioural change followed by complex focal seizures. The cat was severely pyrexic on presentation and anisocoria was present. It was treated with cooling, intravenous fluid, and phenobarbitone administration which was later changed to levetiracetam. An MRI was performed and revealed findings of a hypointense T1 and hyperintense T2 signal in the hippocampus and inferior temporal gyrus with mild gadolinium uptake, findings which were consistent with previous cases of hippocampal necrosis. The cat was witnessed to vomit and aspirate 24 hours after diagnosis leading to cardiac arrest and death. Postmortem examination revealed a subacute degenerative encephalopathy involving the hippocampus.

2018 ◽  
Vol 1 (46) ◽  
pp. 43-48
Author(s):  
Maria Posadowska ◽  
Maria Miszczak-Knecht ◽  
Alicja Mirecka-Rola ◽  
Katarzyna Bieganowska

We present a case of a 15-year-old girl after sudden cardiac arrest because of ventricular fibrillation. Hypertrophic cardiomyopathy was diagnosed. Family history of patient was positive – her uncle (mother’s brother) died suddenly at the age of 21, postmortem examination showed hypertrophic cardiomyopathy. The deceased man’s family was not under cardiac care. The presented case proves, that due to genetically determined cardiac diseases such as cardiomyopathies and channelopathies, all related family members should be examined cardiologically. Diagnosis of the disease in asymptomatic patients would allow the implementation of treatment and reduce the risk of a sudden cardiac arrest / sudden cardiac death.


2021 ◽  
Vol 33 (2) ◽  
pp. 336-339
Author(s):  
Julia Blakey ◽  
Carmen Jerry ◽  
Ana da Silva ◽  
Simone Stoute

A 7-y-old backyard Leghorn chicken ( Gallus domesticus) was submitted to the California Animal Health and Food Safety Laboratory System (CAHFS)–Turlock branch for postmortem examination, with a history of unexpected death. At postmortem examination, a hemorrhagic soft tissue mass was observed in the cervical region. Microscopically, a densely cellular neoplasm of polygonal epithelial cells and small lymphocytes was observed. The microscopic features of the neoplasm in combination with positive immunohistochemistry for pancytokeratin and CD3 were used to classify the lesion as a thymoma. Thymoma was diagnosed in only 5 birds submitted to CAHFS from 1990 to 2019. Thymoma has been described only rarely in birds, and is an unusual diagnosis in backyard chickens.


2021 ◽  
pp. 089719002110048
Author(s):  
Gregory G. Jackson ◽  
Christine R. Lopez ◽  
Elizabeth S. Bermudez ◽  
Nina E. Hill ◽  
Dan M. Roden ◽  
...  

Purpose: A case of loperamide-induced recurrent torsades de pointes is reported to raise awareness of an increasingly common phenomenon that could be encountered by medical providers during the current opioid epidemic. Summary: A 40 year-old-man with a prior history of opioid abuse who presented to the emergency department after taking up to 100 tablets of loperamide 2 mg daily for 5 years to blunt opioid withdrawal symptoms and was subsequently admitted to the intensive care unit for altered mental status and hyperthermia. The patient had prolonged QTc and 2 episodes of torsades de pointes (TdP) that resulted in cardiac arrest with return of spontaneous circulation. He was managed with isoproterenol, overdrive pacing, and methylnatrexone with no other events of TdP or cardiac arrest. Conclusion: A 40-year-old male who developed torsades de pointes from loperamide overdose effectively treated with overdrive pacing, isoproterenol, and methylnatrexone.


PEDIATRICS ◽  
1990 ◽  
Vol 86 (4) ◽  
pp. 624-624
Author(s):  
JOHN M. FREEMAN

A seizure, even a febrile seizure, is terrifying to the family. Seeking reassurance that their child will not die and does not have epilepsy, parents turn to their physician. What is he or she to do? Often the physician prescribes medication "to prevent further seizures" and then reassures the family that the child will be fine if the medicine is given daily as directed. Both the recommendation and the reassurance are wrong. A Consensus Development Conference on Febrile Seizures held by the National Institutes of Health in 19801 concluded that they would only "consider" anticonvulsant prophylaxis when the child (1) had abnormal neurologic development, (2) had long or focal seizures, (3) had more than two seizures in 24 hours, (4) had a history of nonfebrile seizures in parent or sibling, or (5) was younger than 1 years of age.


EP Europace ◽  
2021 ◽  
Author(s):  
Xuehui Fan ◽  
Guoqiang Yang ◽  
Jacqueline Kowitz ◽  
Firat Duru ◽  
Ardan M Saguner ◽  
...  

Abstract Cardiovascular diseases are the main cause of sudden cardiac death (SCD) in developed and developing countries. Inherited cardiac channelopathies are linked to 5–10% of SCDs, mainly in the young. Short QT syndrome (SQTS) is a rare inherited channelopathy, which leads to both atrial and ventricular tachyarrhythmias, syncope, and even SCD. International European Society of Cardiology guidelines include as diagnostic criteria: (i) QTc ≤ 340 ms on electrocardiogram, (ii) QTc ≤ 360 ms plus one of the follwing, an affected short QT syndrome pathogenic gene mutation, or family history of SQTS, or aborted cardiac arrest, or family history of cardiac arrest in the young. However, further evaluation of the QTc ranges seems to be required, which might be possible by assembling large short QT cohorts and considering genetic screening of the newly described pathogenic mutations. Since the mechanisms underlying the arrhythmogenesis of SQTS is unclear, optimal therapy for SQTS is still lacking. The disease is rare, unclear genotype–phenotype correlations exist in a bevy of cases and the absence of an international short QT registry limit studies on the pathophysiological mechanisms of arrhythmogenesis and therapy of SQTS. This leads to the necessity of experimental models or platforms for studying SQTS. Here, we focus on reviewing preclinical SQTS models and platforms such as animal models, heterologous expression systems, human-induced pluripotent stem cell-derived cardiomyocyte models and computer models as well as three-dimensional engineered heart tissues. We discuss their usefulness for SQTS studies to examine genotype–phenotype associations, uncover disease mechanisms and test drugs. These models might be helpful for providing novel insights into the exact pathophysiological mechanisms of this channelopathy and may offer opportunities to improve the diagnosis and treatment of patients with SQT syndrome.


Circulation ◽  
2020 ◽  
Vol 142 (Suppl_4) ◽  
Author(s):  
Benjamin J Meyer ◽  
Samuel Jacobson ◽  
David Roh ◽  
Soojin Park ◽  
Jan Claassen ◽  
...  

Introduction: Patients with cardiovascular disease conditions are at high risk for direct and indirect impacts of COVID-19 on morbidity and mortality. In light of this, we aimed to assess the extent to which COVID-19-related anxiety in patients with a history of cardiac arrest (CA) correlates with the desire to change or discuss advanced directives. Methods: Between May 15-28, 2020, a month after the New York City (NYC) COVID-19 pandemic peak, CA survivors from a prospective cohort were invited to participate in a telephone-based assessment of the pandemic’s impact on psychological and other survivorship dimensions. COVID-19-related anxiety was measured by the Generalized Anxiety Disorder-3 scale, which asks how often respondents felt (1) anxious, (2) unable to stop worrying, and (3) excessively worried over two weeks, and was keyed to the COVID-19 pandemic. Desire to discuss or to change financial and/or health-related advanced directives were reported on a yes-or-no basis. Results: 100 approached, 69 CA survivors participated (53% male; age 61±15 years; 44% White, 20% Black, and 31% Latinx). A majority, 58 of 69 (84%), had no COVID-19 symptoms and/or were not tested. Only 12 of the 69 respondents (17%) showed interest in discussing or changing advanced directives. There were no significant differences in the age, sex, race, or COVID-19 symptoms status between those who showed desire versus those who did not. Desire to change advance directives was significantly associated with increased COVID-19-related anxiety (OR 1.5, CI 95% [1.2-1.9] p<0.002). Conclusions: In CA survivors, a desire to change financial or healthcare-related advanced directives during the COVID-19 outbreak was associated with increased pandemic-related anxiety. The causality and directionality of this relationship require further, qualitative study.


2020 ◽  
Vol 2020 ◽  
pp. 1-5
Author(s):  
Sumit Sohal ◽  
Akhilesh Thakur ◽  
Aleena Zia ◽  
Mina Sous ◽  
Daniela Trelles

Disseminated Intravascular Coagulation (DIC) is a disorder of coagulation which is commonly seen as a complication of infections, traumas, obstetric diseases, and cancers especially hematological and rarely solid cancers. DIC may rarely be the presenting feature of an undiagnosed malignancy. It may present in the form of different phenotypes which makes its diagnosis difficult and leads to high mortality. The treatment comprises supportive, symptomatic treatment and removal of the underlying source. Here, we present a patient with history of being on warfarin for atrial fibrillation and other comorbidities who presented with elevated INR of 6.3 and increasing dyspnea on exertion. Over the course of her stay, her platelet counts started dropping with a concurrent decrease in fibrinogen levels. She eventually developed pulmonary embolism, followed by stroke and limb ischemia, which was indicative of the thrombotic phenotype of DIC. Her pleural fluid analysis showed huge burden of malignant cells in glandular pattern suggestive of adenocarcinoma and was started on heparin drip. However, the patient had cardiac arrest and expired on the same day of diagnosis.


2019 ◽  
Vol 33 (3) ◽  
pp. 364-367 ◽  
Author(s):  
Yoonsun Mo ◽  
Shiv Gandhi ◽  
Jose Orsini

Purpose: To report a case of sudden cardiac arrest possibly associated with the administration of GoLytely® (polyethylene glycol 3350 and electrolytes). Summary: A 60-year-old male with a history of hypertension, hyperlipidemia, type 2 diabetes, and coronary artery disease presented to the emergency department with complaints of constipation and lower abdominal pain over the past week, and the inability to urinate over the past day. The patient had received GoLytely as treatment to alleviate symptoms of constipation and abdominal pain. However, several hours after administration of the bowel prep solution, the patient suffered an episode of cardiac arrest. After ruling out other possible etiologies, GoLytely was suspected as a possible cause of cardiac arrest. The patient had suffered an anoxic brain injury and remained intubated and unconscious until he eventually expired, 20 days after the event. Conclusion: Although GoLytely appears to be a safe agent with fewer side effects, clinicians need to be mindful of potential life-threatening adverse events following GoLytely administration and monitor patients closely during and after administration.


2005 ◽  
Vol 8 (2) ◽  
pp. 240-244 ◽  
Author(s):  
Chris Wixom ◽  
Amy E. Chadwick ◽  
Henry F. Krous

We report a case of sudden, unexpected death associated with meningioangiomatosis in a 13-year-old, previously healthy male without a history of seizures, neurologic deficits, or clinical stigmata of neurofibromatosis. There was no family history of neurofibromatosis. The postmortem examination showed a 5-cm mass involving the right posterior frontal and orbital frontal cortex that had microscopic features diagnostic of meningioangiomatosis. Because no other cause of death was found, we postulate that he likely died as a result of a seizure secondary to meningioangiomatosis.


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