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Angina bullosa haemorrhgica is a relatively uncommon condition characterized by blood-filled subepithelial lesions in the oral mucosa that is idiopathic and not caused by a systemic disease or a hemostatic abnormality. Middle-aged and elderly patients are usually affected and lesions heal spontaneously without scarring. A rapidly expanding hemorrhagic blister in the oropharynx can induce upper airway obstruction, so recognizing the lesion as soon as possible is essential. Because of its rarity, we wanted to highlight a 42-year-old male patient who presented with hemorrhagic bullae associated with insignificant local trauma in the oral mucosa and to emphasize that Angina bullosa haemorrhagica is a rare but recognizable lesion that clinicians should be aware of.

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Many countries have started their vaccination program against the ongoing COVID-19 pandemic. One of these countries, the Republic of Turkey began to use the CoronaVac® vaccine and a large number of people in the country have been vaccinated so far. The efficacy rate of CoronaVac® vaccine 14 days after two doses was reported as 83% for cases requiring medical treatment and 100% for hospitalization or severe- mortal cases. In addition, in a recent study, it was reported that Coronavac vaccine prevented 86.5% death due to covid-19 in the population over 60 years old, 14 days after receiving two doses of CoronaVac. The effectiveness of the vaccine in subgroups such as patients exposed to SARS- CoV-2 virus in less than 14 days, advanced age, comorbidity, and immunosuppression is not yet known. In addition, its effectiveness against different variants of the SARS-CoV-2 virus is not clear. An 85-year-old female patient with a positive SARS-CoV-2 Variant VOC-202012/01 Polymerase Chain Reaction test was admitted to the emergency department with dyspnea. The patient, whose tachycardia, tachypnea and auxiliary respiratory muscle use continued despite 60 L / min of 100% oxygen therapy with a high flow nasal cannula and whose PaO2 / fiO2 ratio was 63, was intubated. Bilateral widespread multifocal ground glass densities consistent with COVID-19 were observed in the thorax computed tomography. The patient, who was followed up in the intensive care unit, died on the 11th day of her follow-up. There are no cases of severe COVID-19 disease reported in the literature yet after the CoronaVac® vaccine. In this case report, we present a severe COVID-19 patient with a positive PCR test for SARS-CoV-2 Variant VOC-202012/01 11 days after the second dose of CoronaVac® administration.

This research aimed to show the role of the number of transferred embryos on pregnancy outcomes of the oocyte donation cycles (ODC). This retrospective cohort study included 122 ODCs performed at a private in vitro fertilization (IVF) center between 2020 June - 2021 January. Cases with severe male infertility, tuboperitoneal, and endometrial factors were not included in the study. The median (interquartile range) recipient age was 43 (30–54) years. ODC results revealed that 10.7% of the cases were negative, 4.9% were biochemical pregnancies, and 84.4% were clinical pregnancies. Pregnancy outcomes were checked; miscarriage, preterm, and term delivery rates were 5.7%, 3.9%, and 90.4%, respectively. The rate of recipients for the younger than 40 years was 32%, between the 40–44 years was 27%, and between 45–54 years was 41% respectively. Statistically significant difference was not observed between age groups in terms of endometrial thickness (p = 0.059), number of transferred embryos (p = 0.857), number of ODC attempt (p = 0.666), live birth rate (p = 0.1), and other pregnancy outcomes (p > 0.05, for all). A total of 96 (78.7%) embryo transfers (ET) resulted in a live birth. In 8.2% (n=10) of cases, single embryo transfer (SET) and in 91.8% (n=112) of cases, double embryo transfer (DET) was performed. The number of embryos transferred was statistically significantly higher among cases that resulted in live births compared to cases without live births (p = 0.002). Significant difference was not found in terms of the recipient age (p = 0.392), male age (p = 0.108), endometrial thickness (p = 0.478), and the number of attempt (p = 0.777) between cases resulted in live birth or not. The only parameter that affects the live birth rates in ODC is the number of transferred embryos.