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Vasa praevia or vasa previa is a complication of obstetrics in which fetal blood vessels cross or run near the internal opening of the uterus. Since these vessels are not protected by the umbilical cord or placental tissue , the rupture of the fetal membranes during birth causes them also to rupture, leading rapidly to death of the fetus.
A standardized (or in some cases de facto standard) video file type such as .webm is a profile specified by a restriction on which container format and which video and audio compression formats are allowed. The coded video and audio inside a video file container (i.e. not headers, footers, and metadata) is called the essence.
[2] [25] This can result in increased risk of caesarean delivery, fetal hypoxia, and perinatal death in pregnancies with velamentous cord insertion. [2] Damage to the umbilical cord vessels can occur when the amniotic membranes are ruptured, particularly in the case of vasa previa, potentially leading to fetal exsanguination.
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WebM is an audiovisual media file format. [5] It is primarily intended to offer a royalty-free alternative to use in the HTML video and the HTML audio elements. It has a sister project, WebP, for images.
Any Video Converter is a video converter developed by Anvsoft Inc. for Microsoft Windows and macOS. [3] It is available in both a free and paid version. Any Video Converter Windows version won the CNET Downloads 5 star award in 2012.
In overt cord prolapse, the cord can be seen or felt on the vulva or vagina. [1] The main issue with cord prolapse is that, once the cord is prolapsed, it is prone to compression by the foetus and the womb. This can cause decrease in oxygen supply to the foetus which can be fatal.
Matroska (styled Matroška) is a project to create a container format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file. [4] The Matroska Multimedia Container is similar in concept to other containers like AVI, MP4, or Advanced Systems Format (ASF), but is an open standard.