The primary treatment during a bout of atrial tachycardia is considered to be rate control using AV nodal blocking agents, such as beta-blockers or calcium channel blockers (see Treatment and Medication).
Microsoft CEO Satya Nadella (left) and executive vice president of Microsoft Devices Group (and former Nokia CEO) Stephen Elop. Microsoft's acquisition of Nokia's Devices and Services business is now complete, both companies have announced. The $7.2 billion deal, originally announced in September 2013, was approved by Nokia shareholders one month later, and has now been approved by governmental regulatory agencies around the world. âToday we welcome the Nokia Devices and Services business to our family.
As a result, the Lumia line is now maintained by Microsoft Mobile. As part of the transition, Microsoft continued to use the Nokia brand on Lumia devices until October 2014, when it began to officially phase out the Nokia name in its promotion and production of smartphones in favor of Microsoft branding.