IMPLICATIONS OF POTENTIAL NEW REGULATORY MEASURES TO ADDRESS AVIATION EMISSIONS

This work is an analysis of the implications of the potential new regulatory policies being recently proposed in the European Union, in particular the mandatory blending of SAF (on top of the already existing CORSIA or ETS), to address aviation emissions from a technical, operational and economic perspective. As a continuation of previous work from the Department of Aerospace Systems, Air Transport and Airports from the ETSIAE (Universidad Politécnica de Madrid), the air traffic structure of the European Union in 2019 has been analysed based on publicly available data from EUROCONTROL and EUROSTAT. The output has been used as the reference scenario for the implementation of the mandatory blending of SAF, expected to take over at the beginning of 2025, since it is expected that by then, air traffic will reach the pre-COVID levels. The results show that all the policy options considered so far have uneven impact among the different stakeholders and that before deciding going forward with any of the presented options, extra work needs to be done to overcome the different challenges that would potentially arise. © 2022 ICAS. All Rights Reserved.

Maternal mortality in pregnant women with positive SARS-CoV-2 antibodies and severe preeclampsia. Report of 3 cases

Maternal mortality from COVID-19 is rare in developed countries, but its association with other obstetric complications increases the risk. It is also associated with fetal death. Postpartum women are at risk of thrombosis that increases with COVID-19 coagulopathy. Comorbidities such as obesity, diabetes, and hypertension increase the risk of death from COVID-19, and pregnant women have more complications during the third trimester than in the first trimester, with higher risk than nonpregnant women of entering the ICU and requiring mechanical ventilation. In this report, stroke, diabetes and intracerebral hemorrhage were the three causes of death described, all within the context of stillbirth, severe preeclampsia, eclampsia and/or HELLP syndrome.

Clinical characteristics of pregnant women in labor with SARS-CoV-2 infection at high altitude: A case series

Introduction: Fewer COVID-19 cases and less lethality have been observed at high altitude compared to cases reported at sea level. There are currently no publications reporting clinical behavior of pregnant women with COVID-19 at high altitude. Methods: This is a retrospective study with review of medical records between March 6, 2020 and June 15, 2020. The first thirteen cases of pregnant women with COVID-19 who were attended at Simon Bolivar COVID-19 Hospital, located at 2 750 meters above sea level, are described. The cases came from altitudes between 2 035 and 3 502 meters above sea level (masl). Statistical analysis used SPSS, version 19.0. Results: Thirteen cases of pregnant women with COVID-19 confirmed by IgM for SARS-CoV-2 were attended at 2 750 masl (9 022.31 feet) in the Peruvian Andes. Delivery by cesarean section occurred in eight cases (61.5%) and five (38.5%) delivered vaginally. There were two cases (15.4%) of preeclampsia, one with diagnosis of HELLP syndrome, prematurity and fetal death. Three cases (23.1%) developed uterine hypotonia that required Hayman or B-Lynch suture. Two cases (15.38%) were complicated with oligohydramnios and two with urinary infection. Hemoglobin levels were between 11.1 and 16 g/dL. Only one case (7.7%) was symptomatic, with mild pharyngeal pain. No vertical transmission was detected by IgM/IgG for SARS-CoV-2. Clinical evolution was favorable in the thirteen cases and they were discharged after 2 to 4 days hospitalization to continue home quarantine. Conclusions: Results in this short study show pregnant women in labor with COVID-19 by rapid IgM test for SARS-CoV-2 at high altitude were mostly asymptomatic;there was no vertical transmission, but high presence of other obstetrical complications.