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"
a plane figure with rounded sides curving inward at the top and intersecting at the bottom; conventionally used on playing cards and valentines; "he drew a heart and called it a valentine"
the courage to carry on; "he kept fighting on pure spunk"; "you havent got the heart for baseball" (同)mettle, nerve, spunk
an inclination or tendency of a certain kind; "he had a change of heart" (同)spirit
a playing card in the major suit that has one or more red hearts on it; "he led the queen of hearts"; "hearts were trumps"
the locus of feelings and intuitions; "in your heart you know it is true"; "her story would melt your bosom" (同)bosom
the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body; "he stood still, his heart thumping wildly" (同)pump, ticker
a firm rather dry variety meat (usually beef or veal); "a five-pound beef heart will serve six"
able to perceive sound
an opportunity to state your case and be heard; "they condemned him without a hearing"; "he saw that he had lost his audience" (同)audience
(law) a proceeding (usually by a court) where evidence is taken for the purpose of determining an issue of fact and reaching a decision based on that evidence
the ability to hear; the auditory faculty; "his hearing was impaired" (同)audition, auditory sense, sense of hearing, auditory modality
a session (of a committee or grand jury) in which witnesses are called and testimony is taken; "the investigative committee will hold hearings in Chicago"
receive a communication from someone; "We heard nothing from our son for five years"
examine or hear (evidence or a case) by judicial process; "The jury had heard all the evidence"; "The case will be tried in California" (同)try
perceive (sound) via the auditory sense
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

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
〈C〉『心臓』;胸 / 〈C〉(感情の中心をなす)『心』,気持ち / 〈U〉愛情,同情 / 〈U〉『勇気』,元気,熱意 / 《the ~》『中心』,内部,(物事の)本質,核心 / 〈C〉ハート形の物;(カードの)ハートの札
〈U〉『聴力』,聴覚〈U〉〈C〉(…を)『聞くこと』,(…の)聞き取り《+『of』+『名』》・〈C〉聞いてもらう機会,聞いてやること・聴取・聴聞会〈C〉(法廷などでの)尋問,審問,;(刑罰の減免を求める)釈明,意見陳述 / 〈U〉聞こえる距離(範囲)
〈音〉‘が'『聞こえる』,‘を'聞く(進行形にできない) / 〈人の言うこと〉‘に'『耳を傾ける』,‘を'注意深く聞く(listen);(裁判官などが)…の申し立てを聞く / 〈うわさ・ニュースなど〉‘を'『耳にしている』,聞いている / 『耳が聞こえる』 / 《しばしば命令形で》耳を傾ける,注意を向ける / 『うわさ』(『消息』)『を聞く』

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/06/27 15:22:35」(JST)

wiki en

A heart block is a disease in the electrical system of the heart. This is opposed to coronary artery disease, which is disease of the blood vessels of the heart. While coronary artery disease can cause angina (chest pain) or myocardial infarction (heart attack), heart block can cause lightheadedness, syncope (fainting), and palpitations.

Types

Sinus rhythm with acute inferior infarction complicated by Type I A-V block manifest in the form of 5:4 Wenckebach periods; R-P/P-R reciprocity.

Sinus rhythm(rate = 100/min) with 3:2 and 2:1 Type II A-V block;RBBB

Sinus tachycardia with complete A-V block and resulting junctional escape

A heart block can be a blockage at any level of the electrical conduction system of the heart (shown in the diagram on the right).

Blocks that occur within the sinoatrial node (SA node) are described as SA nodal blocks.
Blocks that occur within the atrioventricular node (AV node) are described as AV nodal blocks.
Blocks that occur below the AV node are known as infra-Hisian blocks (named after the bundle of His).
Blocks that occur within the left or right bundle branches are known as bundle branch blocks.
Blocks that occur within the fascicles of the left bundle branch are known as hemiblocks.

Clinically speaking, most of the important heart blocks are AV nodal blocks and infra-Hisian blocks.

SA nodal blocks

The SA nodal blocks rarely give symptoms. This is because if an individual had complete block at this level of the conduction system (which is uncommon), the secondary pacemaker of the heart would be at the AV node, which would fire at 40 to 60 beats a minute, which is enough to retain consciousness in the resting state.

Types of SA nodal blocks include:

SA node Wenckebach (Mobitz I)^[1]
SA node Mobitz II
SA node exit block

In addition to the above blocks, the SA node can be suppressed by any other arrhythmia that reaches it. This includes retrograde conduction from the ventricles, ectopic atrial beats, atrial fibrillation, and atrial flutter.

The difference between SA node block and SA node suppression is that in SA node block an electrical impulse is generated by the SA node that doesn't make the atria contract. In SA node suppression, on the other hand, the SA node doesn't generate an electrical impulse because it is reset by the electrical impulse that enters the SA node.

AV nodal blocks

There are three basic types of AV nodal block:

First degree AV block
Second degree AV block
- Type I second degree AV block (Mobitz I) (also known as Wenckebach block)
- Type 2 second degree AV block (Mobitz II) - usually but not always below the AV node and therefore infraHisian - see below^{[citation needed]}
Third degree AV block (Complete heart block)

Infra-Hisian block

Infrahisian block describes block of the distal conduction system. Types of infrahisian block include:

Type 2 second degree heart block (Mobitz II)^{[dubious – discuss]}
Left bundle branch block
- Left anterior fascicular block
- Left posterior fascicular block
Right bundle branch block

Of these types of infrahisian block, Mobitz II heart block is considered most important because of the possible progression to complete heart block.

References

^ Valentin Fuster, R. Wayne Alexander, Robert A. O'Rourke, Robert Roberts, et al. (November 2000). Hurst's The Heart, 10th Edition. McGraw-Hill Professional Publishing. Figure 24–60b. ISBN 0-07-135695-9.

UpToDate Contents

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1. 第2度房室ブロック：モビッツII型 second degree atrioventricular block mobitz type ii
2. 房室ブロックの原因 etiology of atrioventricular block
3. 第1度房室ブロック first degree atrioventricular block
4. 第3度（完全）房室ブロック third degree complete atrioventricular block
5. 第2度房室ブロック：モビッツI型（ウェンケバッハブロック） second degree atrioventricular block mobitz type i wenckebach block

English Journal

Alterations in autonomic cardiac modulation in response to normobaric hypoxia.

Giles D1, Kelly J2, Draper N1,3.
European journal of sport science.Eur J Sport Sci.2016 Nov;16(8):1023-31. doi: 10.1080/17461391.2016.1207708. Epub 2016 Jul 26.
PURPOSE: The present study aimed to determine if autonomic cardiac modulation was influenced by acute exposure to normobaric hypoxia.METHOD: Ten healthy male lowland dwellers completed five block-randomised single-blinded, crossed-over acute exposures to a normobaric hypoxic environment, each separa
PMID 27460635

Quality of Life Changes Following Surgery for Hyperhidrosis.

de Campos JR1, da Fonseca HV2, Wolosker N3.
Thoracic surgery clinics.Thorac Surg Clin.2016 Nov;26(4):435-443. doi: 10.1016/j.thorsurg.2016.06.008. Epub 2016 Aug 31.
The best way to evaluate the impact of primary hyperhidrosis on quality of life (QL) is through specific questionnaires, avoiding generic models that do not appropriately evaluate individuals. QL improves significantly in the short term after sympathectomy. In the longer term, a sustained and stable
PMID 27692202