Oxaliplatin-Associated Takotsubo Cardiomyopathy in a Patient with Metastatic Gastric Cancer: A Case Report.

We present the case of a 64-year-old female with stage IV gastric adenocarcinoma, pulmonary, and abdominal wall metastases, and no history of cardiovascular disease. In palliative care, she received systemic cytotoxic treatment with fluorouracil, leucovorin, oxaliplatin, and docetaxel protocol, which was well tolerated over five cycles. During cycle 6, she presented with cardiovascular symptoms with hemodynamic consequences while receiving oxaliplatin injection without docetaxel or 5-fluorouracil. She was transferred to the emergency department and then to the intensive care unit. She developed no complications during the hospital stay and was discharged after 10 days with preserved systolic function and no structural changes at the myocardial level. The electrocardiogram, echocardiogram, cardiac catheterization, and magnetic resonance imaging findings indicated an oxaliplatin-associated Takotsubo syndrome. The immunochemistry analysis showed PD-L1 expression level TPS: 40% and the foundation one genomic profiling revealed high mutation load, microsatellite instability, and HER2 not found. The patient is currently asymptomatic and on pembrolizumab monotherapy with good tolerance and partial treatment response.

First case report of tumor lysis syndrome after third line systemic therapy with gemcitabine and pazopanib in a patient with lower extremity soft tissue sarcoma.

BACKGROUND: Tumor lysis syndrome (TLS) is recognized as an oncologic disorder with a variable incidence. TLS can cause the rapid destruction of tumor cells in response to oncologic therapy and is characterized by multiple electrolyte disturbances as well as its secondary complications, including death. This disease is common among patients with hematologic neoplasms, but very rare among those with solid tumors, as is the case with sarcomas. Such patients have a poor prognosis and increased risk of mortality. In the patient's particular case, this occurred after initiating third-line systemic therapy with gemcitabine associated with pazopanib, an event not previously described in the literature. CASE DESCRIPTION: We report the case of a patient with a history of high-grade sarcoma of the left lower limb T4N1M0 stage IIIB undergoing surgical management and exhibiting tumor progression with the need for third-line systemic therapy with pazopanib and gemcitabine. The patient presented with pain at the amputation site, inflammatory changes, and a tumor mass of large components on admission. They later developed electrolyte imbalance and acute renal injury compatible with TLS after systemic therapy was initiated. Pharmacological therapy, including rasburicase, was initiated based on the clinical and laboratory findings. Due to the progression of renal involvement, it was necessary to initiate haemodialysis, and during her hospital stay, the patient presented febrile syndrome associated with pancytopenia. The patient showed a favourable clinical response to the proposed antibiotic therapy and recovery of renal function, for which reason therapy was restarted with pazopanib and gemcitabine, the latter with a 20% reduction for the following cycles. Outpatient follow-up continued, completing eight cycles of treatment with good tolerance and partial clinical response; the patient died of respiratory complications eight months after discharge. CONCLUSIONS: There is limited evidence for TLS in patients with high-grade sarcoma in the literature related to the oncologic therapy used; this indicates that early risk evaluation along with prompt initiation of effective therapies is required to prevent the appearance of this type of complications in the short and long term.

Prevalence of Anti-SARS-CoV-2 Antibodies and Associated Factors Among Health Care Workers in Santiago De Cali, Colombia.

Purpose: This study aims to determine the seroprevalence of coronavirus disease (COVID-19) among health care workers and describe the associated sociodemographic and labor features. Patients and Methods: An observational study with an analytical component was conducted at a clinic in Cali, Colombia. The sample size was 708 health workers and they were selected by stratified random sampling. A Bayesian analysis was developed to determine the raw and adjusted prevalence. A Poisson regression model was used to estimate the prevalence ratios. Results: Overall seroprevalence of COVID-19 among healthcare workers was 29%. Miscellaneous services workers, healthcare, and administrative workers, was 38%, 33%, and 32%, respectively. Factors related to seropositivity were having a contact with a COVID-19 patient for >120 minutes and being diagnosed with COVID-19 by laboratory tests. Conclusion: The present study shows a adjusted seroprevalence of 29% in health workers, indicating a high level of disease transmission and an increased risk of infection in this population group.