(心臓疾患)二束ブロック、二枝ブロック、両脚ブロック

WordNet

a three-dimensional shape with six square or rectangular sides (同)cube
(computer science) a sector or group of sectors that function as the smallest data unit permitted; "since blocks are often defined as a single sector, the terms `block and `sector are sometimes used interchangeably"
support, secure, or raise with a block; "block a plate for printing"; "block the wheels of a car"
a solid piece of something (usually having flat rectangular sides); "the pyramids were built with large stone blocks"
housing in a large building that is divided into separate units; "there is a block of classrooms in the west wing"
a rectangular area in a city surrounded by streets and usually containing several buildings; "he lives in the next block" (同)city block
an inability to remember or think of something you normally can do; often caused by emotional tension; "I knew his name perfectly well but I had a temporary block" (同)mental_block
a number or quantity of related things dealt with as a unit; "he reserved a large block of seats"; "he held a large block of the companys stock"
interrupt the normal function of by means of anesthesia; "block a nerve"; "block a muscle"
run on a block system; "block trains"
shape by using a block; "Block a hat"; "block a garment"
shape into a block or blocks; "block the graphs so one can see the results clearly"
stamp or emboss a title or design on a book with a block; "block the book cover"
completely obstructed or closed off; "the storm was responsible for many blocked roads and bridges"; "the drain was plugged" (同)plugged
closed to traffic; "the repaving results in many blocked streets" (同)out of use
a group of countries in special alliance (同)axis
the act of obstructing or deflecting someones movements (同)block

PrepTutorEJDIC

(木・石などの,通例平らな面のある)『かたまり』 / 《米》(四団を街路に囲まれた)『区画』,街区 / 街区の1辺の距離(一般に40メートル前後) / 《英》ブロック(アパート・事務所・商店などに区切られている大きな建物) / 『妨害物』,障害物(obstacle);(障害によって生じた)停滞,渋滞 / 台木,台(まないた・肉切り台・まき割り台・せり売り台・帽子の木型など);《the~》炭頭台 / (特にアメリカンフットボールで)ブロック(相手の選手の突進を阻止する) / 滑車(pulley) / (座席券・株券などの)一組《+『of』+『名』》 / 〈通路など〉'を'『ふさぐ』,〈通行・進行など〉'を'妨げる / 〈帽子など〉の型取りをする / (特にアメリカンフットボールで)〈相手選手の突進〉'を'ブロックする;(ボクシングで)〈相手のパンチ〉'を'ブロックする
ブロック,圏(地理・共通の利害・政治・経済上の目的などのために団結した団体・国家などの結合体)

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/11/09 22:47:30」(JST)

wiki en

Bifascicular block is a conduction abnormality in the heart where two of the three main fascicles of the His/Purkinje system are blocked.

Most commonly, it refers to a combination of right bundle branch block (RBBB) and either left anterior fascicular block (LAFB) or left posterior fascicular block (LPFB), with the former being more common.^[1]

Some authors consider left bundle branch block (LBBB) to be a technical bifascicular block, since the block occurs above the bifurcation of the left anterior and left posterior fascicles of the left bundle branch.

Treatment

In those with bifascicular block and no symptoms, little with respect to treatment is needed. In those with syncope, a pacemaker is recommended.

References

^ "Lesson VI - ECG Conduction Abnormalities". Archived from the original on 16 January 2009. Retrieved 2009-01-07.

External links

1584070658 at GPnotebook

This article about a medical condition affecting the circulatory system is a stub. You can help Wikipedia by expanding it.

UpToDate Contents

全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.

1. 慢性二枝ブロックの経過および治療 course and treatment of chronic bifascicular block
2. 心室内伝導遅延への基本的アプローチ basic approach to delayed intraventricular conduction
3. 恒久的心臓ペースメーカーの適応 indications for permanent cardiac pacing
4. 左脚前枝ブロック left anterior fascicular block
5. 心筋梗塞後の伝導異常 conduction abnormalities after myocardial infarction

English Journal

Cardiologic predictors of sudden death in patients with myotonic dystrophy type 1.

Rakocevic Stojanovic V1, Peric S, Paunic T, Pavlovic S, Cvitan E, Basta I, Peric M, Milicev M, Lavrnic D.Author information 1Neurology Clinic, Clinical Centre of Serbia, School of Medicine, University of Belgrade, Dr Subotica 6, 11000 Belgrade, Serbia.AbstractThe aim of this study was to analyze survival, causes of death and cardiologic predictors of sudden death in a large cohort of patients with myotonic dystrophy type 1 (DM1). The study was comprised of 171 adult DM1 patients hospitalized at the Neurology Clinic in a 20-year period. Severe electrocardiographic (ECG) abnormality included at least one of the following: rhythm other than sinus, PR interval of ≥240 ms, QRS complex duration of 120 ms or more, and second-degree or third-degree atrioventricular (AV) block. Survival data were analyzed by the Kaplan-Meier test, log-rank test and Cox regression analysis. During the mean follow-up period of 9.4±5.4 years, a pacemaker was implanted in 5.8% of DM1 patients and 14% of patients died. The mean age at death was 55.6±12.5 years. The most common causes of death in our cohort were sudden death (41.7%) and respiratory failure (29.2%). The presence of palpitations (hazard ratio [HR]=4.7, p<0.05) and increased systolic blood pressure (HR=9.8, p<0.05) were significant predictors of sudden death. Among ECG parameters, severe ECG abnormality (HR=4.7, p<0.05), right bundle branch block (RBBB; HR=3.9, p<0.05) and bifascicular block (HR=5.8, p<0.05) were significant predictors of sudden death.
Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia.J Clin Neurosci.2013 Jul;20(7):1002-6. doi: 10.1016/j.jocn.2012.09.014. Epub 2013 May 15.
The aim of this study was to analyze survival, causes of death and cardiologic predictors of sudden death in a large cohort of patients with myotonic dystrophy type 1 (DM1). The study was comprised of 171 adult DM1 patients hospitalized at the Neurology Clinic in a 20-year period. Severe electrocard
PMID 23683744

Clinical impact of the implantable loop recorder in patients with isolated syncope, bundle branch block and negative workup: a randomized multicentre prospective study.

Da Costa A1, Defaye P, Romeyer-Bouchard C, Roche F, Dauphinot V, Deharo JC, Jacon P, Lamaison D, Bathélemy JC, Isaaz K, Laurent G.Author information 1Division of Cardiology, University Jean-Monnet, Saint-Étienne, France. antoine.dacosta@univ-st-etienne.frAbstractBACKGROUND: Few studies have compared conventional testing with prolonged monitoring using an implantable loop recorder (ILR) following the first syncope episode in patients with bundle branch block (BBB) and negative workup.
Archives of cardiovascular diseases.Arch Cardiovasc Dis.2013 Mar;106(3):146-54. doi: 10.1016/j.acvd.2012.12.002. Epub 2013 Feb 23.
BACKGROUND: Few studies have compared conventional testing with prolonged monitoring using an implantable loop recorder (ILR) following the first syncope episode in patients with bundle branch block (BBB) and negative workup.OBJECTIVES: To compare two syncope evaluation strategies-primary use of an
PMID 23582676

Prevention of syncope through permanent cardiac pacing in patients with bifascicular block and syncope of unexplained origin: the PRESS study.

Santini M1, Castro A, Giada F, Ricci R, Inama G, Gaggioli G, Calò L, Orazi S, Viscusi M, Chiodi L, Bartoletti A, Foglia-Manzillo G, Ammirati F, Loricchio ML, Pedrinazzi C, Turreni F, Gasparini G, Accardi F, Raciti G, Raviele A.Author information 1Azienda Ospedaliera S. Filippo Neri, Roma, Italy. m.santini@rmnet.itAbstractBACKGROUND: Syncope in patients with bifascicular block (BFB) is a common event whose causes might be difficult to assess.
Circulation. Arrhythmia and electrophysiology.Circ Arrhythm Electrophysiol.2013 Feb;6(1):101-7. doi: 10.1161/CIRCEP.112.975102. Epub 2013 Feb 6.
BACKGROUND: Syncope in patients with bifascicular block (BFB) is a common event whose causes might be difficult to assess.METHODS AND RESULTS: Prevention of syncope through permanent cardiac pacing in patients with bifascicular block (PRESS) is a multicenter, prospective, randomized, single-blinded
PMID 23390123