Atrial tachycardia is a supraventricular tachycardia (SVT) that does not require the atrioventricular (AV) junction, accessory pathways, or ventricular tissue for its initiation and maintenance.
Page Content. Northern Natural Gas Company (Northern) is a subsidiary of Berkshire Hathaway Energy based in Omaha, Nebraska and has been in business since 1930. Northern owns and operates the largest interstate natural gas pipeline system in the United States.
In 1988, Nantahala Power & Light Co., which served southwestern North Carolina, was purchased by Duke and is now operated under the Duke Power Nantahala Area brand. Duke Power merged with PanEnergy, a natural gas company, in 1997 to form Duke Energy.