Three new mosquito records for North Carolina.

Recently enhanced mosquito surveillance programs in northeastern North Carolina have resulted in the collection of Ochlerotatus aurifer, Oc. cantator, and Oc. grossbecki. These specimens represent the 1st confirmed North Carolina records of these species. Collection-site and species distribution data are included.

Rate dependent far-field R wave sensing in an atrial tachyarrhythmia therapy device.

A case is reported of far-field R wave (FFRW) oversensing resulting in inappropriate atrial tachycardia (AT) detection by a dual chamber pacemaker incorporating atrial autoadjusting sensitivity (AAS). FFRW oversensing occurred during periods of functional atrial undersensing (FAU) with PR interval prolongation. Limitations of the pacemaker's ability to reject FFRWs and programming considerations for addressing this unique behavior are discussed.