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A post-marketing safety assessment of COVID-19 mRNA vaccination for serious adverse outcomes using administrative claims data linked with vaccination registry in a city of Japan
CONCLUSION: The findings suggested that the COVID-19 mRNA vaccine was generally safe, whilst a signal of pulmonary embolism following the first dose of the COVID-19 mRNA vaccine was observed.PMID:36371366 | DOI:10.1016/j.vaccine.2022.10.088
Source: Vaccine - November 12, 2022 Category: Allergy & Immunology Authors: Yoshinori Takeuchi Masao Iwagami Sachiko Ono Nobuaki Michihata Kohei Uemura Hideo Yasunaga Source Type: research

Incidence of thromboembolic complications in hospitalized COVID-19 patients in a medical ward in Japan: A single-center retrospective and prospective observational study
Conclusion: Thromboembolic complications of COVID-19 are rare even in severe cases in a medical ward in a Japanese hospital. Further studies are needed to identify severe COVID-19 patients with a higher risk for thromboembolic complications in Japan.
Source: Medicine - August 19, 2022 Category: Internal Medicine Tags: Research Article: Observational Study Source Type: research

Thrombotic and Cardiovascular Events and Treatment Patterns Among Patients Hospitalized with COVID-19 in Japan: An Analysis of a Nationwide Medical Claims Database
ConclusionsPatients with COVID-19 could experience thrombotic complications in every blood vessel. Further optimization of medication is crucial for preventing thrombotic complications and improving prognosis.
Source: Cardiology and Therapy - April 15, 2022 Category: Cardiology Source Type: research

Potential  adverse events in Japanese women who received tozinameran (BNT162b2, Pfizer-BioNTech)
AbstractReports of cerebral venous sinus thrombosis and intracranial hemorrhage (ICH) following the administration of coronavirus vaccines have raised concerns regarding their safety. Although no regulatory authority has recognized ICH as an adverse event associated with tozinameran (BNT162b2, Pfizer-BioNTech), fatal and non-fatal cases have been reported. In Japan, 10 fatal cases (five men and women) have been reported to date. Four of the five women died of ICH and the other died of aspiration pneumonia, whereas all five men died of causes other than stroke. This imbalance is incompatible with the mortality data on cardi...
Source: Journal of Pharmaceutical Policy and Practice - May 31, 2021 Category: Pharmaceuticals Source Type: research