block

(redirected from AV block)
Also found in: Dictionary, Thesaurus, Medical, Legal, Encyclopedia.
Related to AV block: Third degree AV block

Block

Large quantity of stock or large dollar amount of bonds held or traded. As a rule of thumb, 10,000 shares or more of stock and $200,000 or more worth of bonds would be described as a block.

Block

An exceptionally large amount or value of securities. While there is no specific definition of how many shares constitute a block, most people using the term refer to holding or trading more than 10,000 shares and/or shares worth more than $200,000. Almost invariably, trades of this magnitude involve institutional investors. See also: Block trade, Secondary issue.

block

A large amount of a security, usually 10,000 shares or more.

block

An area bounded by perimeter streets.Many subdivision descriptions employ a subdivision name,and then a block number and a lot number to identify particular properties.The numbers are assigned when the subdivision developer files its plat plan with local authorities.

References in periodicals archive ?
Complete AV block and torsades de pointes in a case of primary cardiac T-cell lymphoma.
After a mean follow-up of months, third-degree AV block persisted in 13/16 (81%) patients treated medically and in 27/37 (73%) of the re-vascularized patients.
Though the patient had significantly improved cardiac systolic function after 3 days of ECMO support, third-degree AV block was continuously present.
Despite the given treatment, complete AV block developed in one patient.
For AFL and AT, transient AV block may reveal underlying P waves or flutter waves.
Also known as Wenckebach, Mobitz Type I seconddegree AV block results when there is an intermittent block of SA node-originated impulse conduction within the AV node (nodal) followed by complete failure of the impulse conduction from the atria to the ventricles.
Exposure to 100 [micro]M BPA resulted in third-degree AV block.
While RV pacing via a single or dual chamber pacemaker helps restore heart function in patients with AV block (in which the electrical signals do not travel between the top and bottom chambers of the heart), smaller studies suggest that in patients with both AV block and LV dysfunction, RV pacing may escalate the progression of heart failure.
Their ECGs showed prolonged QT interval, AV block and TdP.
A twenty-four hour cardiac holter monitor revealed baseline sinus rhythm and confirmed the presence of second degree AV block of the Wenckebach type.
Now a study in the June 24, 2009 issue of the Journal of the American Medical Association (JAMA) has found first-degree AV block may increase the risk for atrial fibrillation (AF), need for pacemaker or death.