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Anatomically defined re-entry has a fixed anatomic pathway. Anomalous conduction via accessory pathways (APs) creates the re-entry circuit (which are also called bypass tracts), that exists between the atria and ventricles. Wolff–Parkinson–White syndrome (WPW) is an example of anatomically defined re-entry.
Ventricular tachycardia (V-tach or VT) is a cardiovascular disorder in which fast heart rate occurs in the ventricles of the heart. [3] Although a few seconds of VT may not result in permanent problems, longer periods are dangerous; and multiple episodes over a short period of time are referred to as an electrical storm.
VT 9030: 2.414: 3.885 Edward F. Knapp State Airport: US 302 in Berlin: Berlin State Highway — — Includes Airport Road, 0.134-mile-long (0.216 km) concurrency with VT 62, and ramps from VT 62 to US 302: VT 9090: 0.135: 0.217 I-91: US 5 / VT 9 in Brattleboro: Brattleboro State Highway — — I-91 exit 3 VT 9150: 0.398: 0.641 VT 4A: East ...
Because the accessory pathway initiates conduction in the ventricles outside of the bundle of His, the QRS complex in antidromic AVRT is wider than usual. A delta wave is an initial slurred deflection seen in the initial part of an otherwise narrow QRS of a patient at risk for WPW and is an indicator of the presence of an accessory pathway ...
In-between episodes there is normal electrical conduction in the heart. During an episode of AVRT caused by PJRT, the accessory pathway conducts electrical activity from the ventricles directly back to the atria at the end of systole, which triggers the atria to contract, and the current to pass back to the ventricles again via the atrioventricular node (AV node); see diagram.
Vermont Route 100B (VT 100B) is a spur route that branches off of VT 100 in Moretown. The designation is about eight miles (13 km) long. The designation is about eight miles (13 km) long. The route, which runs in a northeast–southwest direction, connects VT 100 to U.S. Route 2 in Middlesex .
Vermont Route 103 (VT 103) is a 42.036-mile-long (67.650 km) north–south state highway in southern Vermont, United States. It runs from U.S. Route 5 (US 5) in Rockingham in the east to US 7 in Clarendon near Rutland in the west.
Vermont Route 11 (VT 11) is a 42.154-mile-long (67.840 km) east–west state highway in Vermont, United States.The western end of the highway is at VT 7A in Manchester.The eastern end is at the New Hampshire border at the Cheshire Bridge over the Connecticut River, connecting Springfield and Charlestown, New Hampshire.