"Hospital survival of patients with pulmonary embolism in a country with limited resources case of the city of Kinshasa"

BACKGROUND

Pulmonary embolism is a frequent cause of intra-hospital mortality. The survival of patients depends not only on the speed of diagnosis but also on the treatment initiated.

OBJECTIVE

to evaluate the intra-hospital survival of patients with pulmonary embolism in the city of Kinshasa.

METHODOLOGY

analytical cross-sectional study based on non-probability convenience sampling carried out in the city of Kinshasa; three hospitals selected for convenience on the basis of their technical platforms. The patients were judged to have had a pulmonary embolism after a chest CT angiography proved it. The data recorded on the Kobocollect site were exported in Excel format and analyzed with SPSS software version 23. The comparison of the means was made using the Student test and that frequencies with the Yates Chi-square test. The association was attributed by the calculation of the odds ratio and the survival presented according to the Cox regression.

RESULTS

Eighty-nine cases or 63 women and 26 men were analyzed, the mean age was 64.4 ± 15.6 years. Individuals over 65 died more (ß=0.043 and p-Value of 0.01) the female sex multiplied by 1.38 the risk of death (DNS, p-Value = 0.478). Approximately 80% of patients were classified as PESI stage II or III. Starting Rivaroxaban from the outset does not show any difference with enoxaparin in terms of intra-hospital survival.

CONCLUSION

Pulmonary embolism is a real problem in our environment, the age of more than 65 years and the female sex are factors of poor prognosis and predicted survival.

A Global Geomorphologic Map of Saturn's Moon Titan

Titan has an active methane-based hydrologic cycle¹ that has shaped a complex geologic landscape², making its surface one of most geologically diverse in the solar system. Despite the different materials, temperatures, and gravity fields between Earth and Titan, many surface features are similar between the two worlds and can be interpreted as products of the same geologic processes³. However, Titan's thick and hazy atmosphere has hindered the identification of geologic features at visible wavelengths and the study of surface composition⁴. Here we identify and map the major geologic units on Titan's surface using radar and infrared data from the Cassini orbiter spacecraft. Correlations between datasets enabled us to produce a global map even where data sets were incomplete. The spatial and superposition relations between major geologic units reveals the likely temporal evolution of the landscape and gives insight into the interacting processes driving its evolution. We extract the relative dating of the various geological units by observing their spatial superposition in order to get information on the temporal evolution of the landscape. Dunes and lakes are relatively young, while hummocky/mountainous terrains are the oldest on Titan. Our results also show that Titan's surface is dominated by sedimentary/depositional processes with significant latitudinal variation, with dunes at the equator, plains at mid-latitudes and labyrinth terrains and lakes at the poles.