The Romans were active in trade and commerce, and from the time of learning to write they needed a way to indicate numbers. The easiest way to note down a number is to make that many marks – little I’s. Thus I means 1, II means 2, III means 3.

What is provisional stenting technique?

Provisional or conditional stenting should be defined as the use of stents limited to those conditions and cases in which the operator, despite an aggressive balloon angioplasty technique with large balloons and high pressure, has been unable to obtain a result that ensures optimal chances of early and late patency.

What is bifurcation stent?

Open in a separate window. Mechanistically, bifurcation stents are divided into 2 types. Stents for provisional SB stenting that facilitate or maintain access to the SB after MB stenting, and do not require recrossing of MB stent struts. These stents allow placement of a second stent on the SB only if needed.

Why is 2 the best number?

The number 2 is called the “oddest” even prime number. 2 is a unique even prime number because all even numbers are divisible by 2. But any number apart from 2 that is divisible by 2 is not a prime number.

What is so special about the number 2?

Two is the smallest prime number, and the only even prime number (for this reason it is sometimes called “the oddest prime”). Two and three are the only two consecutive prime numbers. 2 is the first Sophie Germain prime, the first factorial prime, the first Lucas prime, and the first Ramanujan prime.

What is a bifurcation lesion?

A bifurcation lesion is a coronary artery narrowing occurring adjacent to, and/or involving, the origin of a significant side branch that you do not want to lose. The very simple Medina classification is intended for exchange and clinical research purposes.

How do you make a culotte stent?

The culotte technique consists of stenting one of two branches of the bifurcation lesion first, and after balloon dilatation of the stent meshes, stenting the uncovered branch through the first stent and leaving the proximal main vessel covered with two overlapped stents.

What is Carina in cardiology?

The carina is the inflection point at which the proximal MB bifurcates into the distal MB and SB. The European Bifurcation Club defines a bifurcation lesion as a significant stenosis (i.e., >50%) in a coronary artery adjacent to and/or involving the origin of an SB that is clinically significant.

What is a LAD stent?

Your doctor inserts a stent, a small metal tube made of tiny meshed wires, to help keep your LAD open so that blood can pass through and continue restoring oxygen to your heart muscles.

What is kissing balloon technique?

Kissing balloon is the standard technique used to tackle branch vessel stenosis . When a vessel branches out and both branches has a lesion, single balloon can not dilate a lesion optimally .

Where did number 2 originate?

The digit used in the modern Western world to represent the number 2 traces its roots back to the Indic Brahmic script, where “2” was written as two horizontal lines. The modern Chinese and Japanese languages still use this method. The Gupta script rotated the two lines 45 degrees, making them diagonal.

What does II mean?

Noun 1. II – the cardinal number that is the sum of one and one or a numeral representing this number 2, two, deuce digit, figure – one of the elements that… Ii – definition of ii by The Free Dictionary

What is Urban II?

Urban II, original name Odo of Châtillon-sur-Marne, orOdo of Lagery , or of Lagny , French Odon, orEudes, de Châtillon-sur-Marne, or de Lagery, or de Lagny, (born c. 1035, Châtillon-sur-Marne, or Lagery, or Lagny, Champagne, France—died July 29, 1099, Rome [Italy]), head of the Roman Catholic church (1088–99) who developed ecclesiastical reforms begun