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Related to fibrillation: ventricular fibrillation


1. a local and uncontrollable twitching of muscle fibres, esp of the heart, not affecting the entire muscle. Atrial fibrillation results in rapid and irregular heart and pulse rate. In ventricular fibrillation, the heart stops beating
2. irregular twitchings of the muscular wall of the heart, often interfering with the normal rhythmic contractions



the destruction by mechanical action of the bonds between the tiny fibers (fibrils and microfibrils) making up the cell walls of plant fibers and the penetration by water of the space between the fibrils.

Fibrillation may occur both on the surface of and within the cell wall of the fibers. With surficial fibrillation fragments of fibrils and the cell wall are separated from the fibers and form a nap on the fibers. With internal fibrillation the weakening and partial destruction of the bonds between fibrils increase the flexibility and plasticity of the fibers. Internal fibrillation enables the fibers to form bonds without losing strength. Fibrillation, the main process in beating cellulose during paper production, increases the surface of the fibers and releases the hemicelluloses inside the fibers, making it possible for the hemicelluloses to take part in the formation of bonds between fibers in the sheet of paper. The splitting of the fibrils establishes conditions for improved intertwining of fibers, increasing the mechanical strength of the paper sheet yet reducing the absorbency. Rolls, conical and disk mills, and similar devices are used for fibrillation.


Ivanov, S. N. Tekhnologiia bumagi, 2nd ed. Moscow, 1970.



An independent, spontaneous, local twitching of muscle fibers.
A process in which yarn is extruded as a ribbon or a tape rather than as a fine filament.
References in periodicals archive ?
For each additional 10 pounds, the atrial fibrillation rate increases by 31% in men and by 18% in women,' Magnussen said by email.
GLORIA-AF (Global Registry on Long-Term Oral Antithrombotic Treatment in Patients with Atrial Fibrillation) is a large, multinational, prospective registry programme involving patients with newly diagnosed non-valvular atrial fibrillation.
The factors propelling growth in this market include increasing number of people suffering from atrial fibrillation and favorable regulations.
4) The present study is an attempt to assess the relation between left atrial size and atrial fibrillation in different diseases.
But quite often, little attention is paid to the heart rhythms of people who survive an unexplained stroke if they have no history of atrial fibrillation, says Hooman Kamel, a neurologist at Weill Cornell Medical College in New York City.
Some people with atrial fibrillation have no symptoms and are completely unaware that their heart rate is not regular.
We found that age-related declines in average cognitive test scores did occur faster after diagnosis of atrial fibrillation, even after accounting for other factors that can hasten cognitive decline," Thacker said.
The presumed mechanism of benefit lies in the mounting evidence suggesting that inflammation plays a role in both the initiation and maintenance of atrial fibrillation.
She and her coinvestigators undertook this exploratory analysis because other studies have yielded mixed results regarding statins and atrial fibrillation.
In the same light, the presence or absence of atrial fibrillation (particularly in the presence of valvular disease or heart failure) needs to be recognised, since the correct treatment for this is oral anticoagulant therapy with vitamin K antagonists.
1 Mission 1 Million EoACAo Getting to the Heart of Stroke is supported by leading health experts and patient organisations including the World Heart Federation (WHF), Atrial Fibrillation Association (AFA), AntiCoagulation Europe (ACE), and Stroke Alliance For Europe (SAFE) and is sponsored by Boehringer Ingelheim.
Use of bisphosphonates among women and risk of atrial fibrillation and flutter: population-based case-control study.