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"
- toward or on the left; also used figuratively; "he looked right and left"; "the political party has moved left"
- a turn toward the side of the body that is on the north when the person is facing east; "take a left at the corner"
- the hand that is on the left side of the body; "jab with your left" (同)left_hand
- those who support varying degrees of social or political or economic change designed to promote the public welfare (同)left wing
- location near or direction toward the left side; i.e. the side to the north when a person or object faces east; "she stood on the left"
- intended for the left hand; "I rarely lose a left-hand glove" (同)left-hand
- being or located on or directed toward the side of the body to the west when facing north; "my left hand"; "left center field"; "the left bank of a river is bank on your left side when you are facing downstream"
- of or belonging to the political or intellectual left
- a part of a forked or branching shape; "he broke off one of the branches" (同)leg, ramification
- divide into two or more branches so as to form a fork; "The road forks" (同)ramify, fork, furcate, separate
- a division of a stem, or secondary stem arising from the main stem of a plant
- a division of some larger or more complex organization; "a branch of Congress"; "botany is a branch of biology"; "the Germanic branch of Indo-European languages" (同)subdivision, arm
- a stream or river connected to a larger one
- make into a bundle; "he bundled up his few possessions" (同)bundle_up, roll_up
- sleep fully clothed in the same bed with ones betrothed (同)practice bundling
- a package of several things tied together for carrying or storing (同)sheaf
- the act of binding something into a bundle
- the act of shoving hastily; "she complained about bundling the children off to school"
- a onetime custom during courtship of unmarried couples occupying the same bed without undressing
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
- leaveの過去・過去分詞
- 《名詞の前にのみ用いて》『左の』,左方の / 《しばしばl-》(政治上の)左翼の,左派の,革新派の / 左に,左方に / 《通例 the ~》『左』,左方,左側 / 《しばしばthe L-》左翼の政党(団体),左派 / 〈U〉(野球で)左翼,レフト(left field);〈C〉左翼手(left fielder) / 〈C〉(ボクシングで)左手打ち
- 『枝』 / 『支流』,支脈,支線;分家 / 『支店』,『支部』,支局 / (学問の)『部門』,分科 / 枝を出す,枝を広げる / (川・道・鉄道などが)分岐する
- (…の)『束』,『包み』,巻いたもの(旅行者の荷物など)《+『of』+『名』》 / …'を'包みにする,束にする / (…に)…'を'ごっちゃに投げ込む《+『名』+『into』+『名』》 / 荷物をまとめてさっさと出て行く《+『off』(『out』,『away』)》
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/12/31 11:08:21」(JST)
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- 1. 左脚ブロック left bundle branch block
- 2. 左脚ブロックまたはペースメーカーによる心室リズムの患者における負荷試験 stress testing in patients with left bundle branch block or a paced ventricular rhythm
- 3. 心室内伝導遅延への基本的アプローチ basic approach to delayed intraventricular conduction
- 4. 心電図チュートリアル：心室内ブロック ecg tutorial intraventricular block
- 5. 脚ブロックまたはペーシング調律存在下での心筋梗塞の心電図による診断 electrocardiographic diagnosis of myocardial infarction in the presence of bundle branch block or a paced rhythm
English Journal
- Prehospital factors associated with an acute life-threatening condition in non-traumatic chest pain patients - A systematic review.
- Wibring K1, Herlitz J2, Christensson L3, Lingman M4, Bång A2.
- International journal of cardiology.Int J Cardiol.2016 Sep 15;219:373-9. doi: 10.1016/j.ijcard.2016.06.066. Epub 2016 Jun 21.
- BACKGROUND: Chest pain is a common symptom among patients contacting the emergency medical services (EMS). Risk stratification of these patients is warranted before arrival in hospital, regarding likelihood of an acute life-threatening condition (LTC).AIM: To identify factors associated with an incr
- PMID 27352210
- Usefulness of the Sum Absolute QRST Integral to Predict Outcomes in Patients Receiving Cardiac Resynchronization Therapy.
- Jacobsson J1, Borgquist R2, Reitan C1, Ghafoori E3, Chatterjee NA4, Kabir M3, Platonov PG1, Carlson J1, Singh JP4, Tereshchenko LG5.
- The American journal of cardiology.Am J Cardiol.2016 Aug 1;118(3):389-95. doi: 10.1016/j.amjcard.2016.05.017. Epub 2016 May 14.
- Cardiac resynchronization therapy (CRT) reduces mortality and morbidity in selected patients with heart failure (HF), but up to 1/3 of patients are nonresponders. Sum absolute QRST integral (SAI QRST) recently showed association with mechanical response on CRT. However, it is unknown whether SAI QRS
- PMID 27265674
- T wave amplitude in lead aVR as a novel diagnostic marker for cardiac sarcoidosis.
- Tanaka Y1, Konno T2,3, Yoshida S1, Tsuda T1, Sakata K1, Furusho H1, Takamura M1, Yoshimura K4, Yamagishi M1, Hayashi K1.
- Heart and vessels.Heart Vessels.2016 Jul 27. [Epub ahead of print]
- It is vital to identify cardiac involvement (CI) in patients with sarcoidosis as the condition could initially lead to sudden cardiac death. Although the T wave amplitude in lead aVR (TWAaVR) is reportedly associated with adverse cardiac events in various cardiovascular diseases, only scarce data ar
- PMID 27465594
Japanese Journal
- Abnormalities on myocardial perfusion images in patients with pacemaker implantation
- TANAKA Ryo
- 千葉科学大学紀要 (7), 59-68, 2014-02
- NAID 40020058377
- 小児の心房中隔欠損症におけるcrochetage パターンの年齢群別の 差異および血行動態との関係の検討
- 船田 裕昭,坂田 晋史,倉信 裕樹,橋田 祐一郎,美野 陽一,辻 靖博,神﨑 晋
- Pediatric Cardiology and Cardiac Surgery 30(1), 22-29, 2014
- 背景：小児期の心房中隔欠損症（atrial septal defect；ASD）は一般的に無症状で，心電図変化を認めない例も多い．ASD診断の心電図指標としてのcrochetageの有用性を検討した．方法：ASDの小児151例におけるcrochetageの頻度を年齢群別に検討し，さらに対照群と比較した．また肺体血流比とcrochetageの関係性を検討した．結果：CrochetageをⅡ，Ⅲ，aV …
- NAID 130003398231
- Impact of Pulmonary Vein Isolation on Left Bundle Branch Block Following Tachycardia-induced Cardiomyopathy in a Patient with Persistent Atrial Fibrillation
- Senoo Keitaro,Otsuka Takayuki,Suzuki Shinya,Sagara Koichi,Yamashita Takeshi
- Internal Medicine 53(7), 721-724, 2014
- … Electrocardiography showed atrial fibrillation (AF) with a heart rate of 116 bpm and left bundle branch block (LBBB). … Transthoracic echocardiography revealed a severely reduced left ventricular systolic function (ejection fraction: 32%), suggesting tachycardia-induced cardiomyopathy (TIC) due to AF. …
- NAID 130003392750
Related Links
- Left bundle branch block (LBBB) is a cardiac conduction abnormality seen on the electrocardiogram (ECG). In this condition, activation of the left ventricle is delayed, which results in the left ventricle contracting later than the right ventricle.
- A right bundle branch block (RBBB) is a defect in the heart's electrical conduction system. During a right bundle branch block, the right ventricle is not directly activated by impulses travelling through the right bundle branch. The left ventricle ...
Related Pictures
★リンクテーブル★
| リンク元 | 「II音」「奇異性分裂」「左脚ブロック」「fascicular block」「LBBB」 |
| 拡張検索 | 「incomplete left bundle branch block」 |
| 関連記事 | 「block」「branch」「left」「branched」「bundle」 |
「II音」
- 英
- second heart sounds, S2
- 関
- 心音
まとめ
| II音亢進 | IIA | 高血圧 | AR | 動脈硬化 |
| IIP | 肺高血圧 | PR | MS | |
| II音減弱 | IIA | 低血圧 | AS | |
| IIP | PS |
II音増大
- MSとASとでは、同じstenosisでも心音の大きさに関与の仕方が違うんですね。
- 拡張期における大動脈圧、肺動脈圧が高い → 弁に衝突する血液の流速が早い → 弁の閉鎖音が大きい
- 動脈硬化の強いとき
- 大動脈弁が閉じるとき、拡張期早期 back pressureが高い？
- 拡張期に大動脈弁を挟んだback pressureが高いから？
- 右室へのvolume load。PHで顕著
II音減弱
- 駆出できる血液量がへるから？
分裂音
呼吸性分裂
- PHD.33-35
- 生理的状態では、
| 横隔膜の相対的位置 | II音 | |||
| 呼気 | expiration | ￣ | ｜ | single sound |
| 吸気 | inspiration | ＿ | ｜ ｜ | splitting sound |
- (1)吸気時には、肺の血管抵抗性が低下 → 拡張期におけるP弁へのback pressureは呼気時と比べ比較的低下する →P弁の開放時間が延長
- (2)吸気時には、肺静脈が拡張 → 左房・左室への血液還流量が減少 → 左室を充満する血液量減少 → 一回拍出量減少 → 駆出時間の短縮 → A弁の開放時間が短縮
widened splitting
- right bundle branch block(RBBB), pulmonic stenosis(PS)
- IIAが早まる：MR, VSD
- IIPが遅れる：RBBB, PS, pulmonary hypertension
固定性分裂 fixed splitting
奇異性分裂 paradoxical splitting
- left bundle branch block(LBBB), advanced aortic stenosis(AS), 高血圧？
単一II音 single S2
- Eisenmenger症候群、Fallot四徴症、肺動脈狭窄・肺動脈弁閉鎖
「奇異性分裂」
概要
- 通常の心音はS1→A2→P2 だけど、奇異性分裂ではS1→P2→A2となる。
原因
- A弁閉鎖の遅延：(1)left bundle branch block(LBBB), (2)advanced aortic stenosis(AS), 高血圧？, (4)閉塞性肥大型心筋症 HOCM(YN.C-135).
- (1) left bundle branch block(LBBB)：心筋収縮の時間的な遅れによる。収縮が右室→左室の順に起これば、P弁→A弁の順に閉鎖する。
- (2)大動脈弁狭窄症：A弁の狭窄により大動脈側の押し戻す圧力(back pressure)が上がるのに時間がかかり、A2音のdelayとなる。
- (4)閉塞性肥大型心筋症：(2)のASと同じ理屈
呼吸性変動との関連
- 生理的分裂では、吸気時には、肺血管抵抗が下がる事によるP2の遅れ + 肺静脈拡張にともなうLVの拍出量減少によるA2の早期閉鎖により大きくA2→P2と広がっている。
- 呼気時：S2(P2→A2が打ち消されるため)
- 吸気時：P2→A2(A2のdelay)
「左脚ブロック」
分類
脚ブロックと心音、電気軸との関係
| 心機能の予後 | 心音 | 電気軸 | 原因 | ||
| 右脚ブロック | 良好 | 病的分裂(IIP遅延) | 不変(YN.C-50)/右軸偏位 | ||
| 左脚ブロック | 良好ではない | 奇異性分裂(IIA遅延) | 虚血性心疾患、高血圧、心筋症、心不全、左室肥大 | ||
| 左脚前枝ブロック | 左軸偏位 | ||||
| 左脚後枝ブロック | 右軸偏位 | ||||
「fascicular block」
- (心左脚の一枝に生じた伝導障害)束枝ブロック、分枝ブロック
「LBBB」
[★] 左脚ブロック left bundle branch block
「incomplete left bundle branch block」
「block」
- n.
- v.
- 遮断する、ブロックする、封鎖する、阻止する
- 関
- blockade、blockage、deter、inhibit、inhibition、lump、prevent、prevention、repress、repression、seal、turn off
「branch」
- n.
- v.
- 枝分れする、分枝する
- 関
- arbor、arborization、branched、branched chain、branching、class、department、division、ramification、ramus、section、sector
「left」
- adj.
- 左の、左方の
- n.
- 左、
- v.
- 関
- leave
「branched」
- adj.
- 分枝の
「bundle」
- n.
- v.