An upper stage Block DM has completed the orbital insertion of three navigation satellites belonging to the Russian GLOobal NAvigation Satellite System (GLONASS) into their target low-Earth orbit. The ...

Heart block is a disruption in the electrical signals that control your heart. Your heart depends on a steady flow of electrical signals that start in the heart’s upper chambers (atria). The signals ...

Complete heart block means that there’s a complete separation of electrical activity between the upper and lower chambers of the heart. Without prompt medical attention, it can be fatal. Your heart ...

A new study finds that ultrasound-guided thoracic paravertebral block (TPVB) is more effective than stellate ganglion block (SGB) for treating chronic upper arm pain, providing better pain relief and ...

NASA will likely launch its first astronauts into deep space since the Apollo program on a less powerful version of its Space Launch System rocket than originally planned. Although it has not been ...

The stellate ganglion are sympathetic nerves in your neck. They're found on either side of your voice box. You can get an injection called a stellate ganglion block (sympathetic nerve block) to ease ...