
心室纖維性顫動
A: In most cases, it's probably ventricular fibrillation that causes these sudden deaths from fear.
答:大多數情況下,很可能是由于心室顫動導緻恐懼引發的突然死亡。
AIM:To observe the effect of low dose pirenzepine (PZP) on the ventricular fibrillation threshold(VFT) in myocardial ischemia model of rabbits and its mechanism.
目的:觀察小劑量哌侖西平對兔急性心肌缺血心室顫動阈值的影響。 探讨自主神經作用及其機制。
Possible effects range from minor changes in heartbeat to an increase in the risk of abnormal heart rhythms (arrhythmia) that might be life-threatening (such as ventricular fibrillation).
可能産生的影響從輕微改變心跳率到增加不正常心髒節率(心率不齊)的危險,這可能對生命有威脅(例如心室纖維顫動)。
Objective:To observe the effects of Diemailing on ET 1 in plasma and heart tissues of rabbits with ventricular fibrillation.
目的:觀察碟脈靈注射液對心室顫動(簡稱室顫)家兔血漿及心肌組織内皮素1 ( ET- 1 )含量的影響。
Objective: To explore the mechanism of ventricular fibrillation(VF) and whether the properties of chaotic nonlinear dynamics exist during VF.
目的:探讨心室顫動(VF)的旋波機制,研究室顫過程中是否遵循混沌的非線性動力學特性。
ICD can significantly reduce the cardical mortality of the patients with resuscitative cardiac arrest or ventricular fibrillation too.
對心跳驟停或心室顫動等成功複蘇的病人,ICD同樣可顯著減少心源性死亡;
To investigate the relation between hypertrophied myocardium and the ventricular fibrillation threshold in spontaneously hypertensive rats(SHR).
目的探讨自發高血壓大鼠心肌肥厚與心室顫動阈值的關系。
Reperfusion of the ischemic myocardium, however, can trigger the onset of various cardiac arrhythmias especially ventricular fibrillation.
然而,缺血心肌再灌注能觸發包括心室顫動在内的各種心律失常。
Objective To observe the effect of carvedilol on sympathetic innervation and ventricular fibrillation threshold in rabbit models with dilated cardiomyopathy (DCM).
目的觀察卡維地洛對家兔擴張型心肌病交感神經分布和室顫阈值的作用。
The indications forvalve replacement, causes of ventricular fibrillation, application of mechanical respiration in critical patients, and postoperative endocarditis were discussed.
本文還就換瓣手術指征,心室顫動的原因,重症患者機械呼吸的應用,術後心内膜炎等問題進行讨論。
In most cases, it's probably ventricular fibrillation that causes these sudden deaths from fear.
在大多數情況下,可能是心室顫動引起人在恐懼中暴亡。
Objective To investigate the correlation between the degree of phase coupling among orthogonal electrocardiogram(ECG) during ventricular fibrillation(VF) and the defibrillation shock outcome.
目的為探讨心室顫動時正交心電圖(ECG)相位耦聯程度與心室電除顫結果之間的相關性。
Acute myocardial infarction; Incidence of ventricular fibrillation; Rat model.
急性心肌梗死;室顫發生率;大鼠模型。
In both models, this was accompanied by ventricular fibrillation.
在這兩個模型中,這樣的現象均伴隨着室顫。
Conclusion Carvedilol can increase ventricular fibrillation threshold in rabbit with DCM, but doesn't influence sympathetic innervation significantly.
結論卡維地洛能提高擴張型心肌病室顫阈值,對交感神經分布無明顯影響。
Objective: To study the spiral wave dynamics in controlling ventricular fibrillation.
目的:探讨控制與消除心室顫動的方法。
Ventricular fibrillation is a serious arrhythmia that can cause death if not treated quickly.
心室顫動是嚴重的心律失常,如果不給予快速的治療可緻人死亡。
In the defibrillator, 80C196KC microcontroller is utilized to identify ventricular fibrillation accurately and double pulses of low energy are applied to get rid of the quivers effectively.
提出一種采用80C196KC單片機識别心室纖顫的設計思想,并采用低能量的雙相脈沖技術實現去纖顫,突破了傳統去纖顫器在技術與應用方面的局限性。
Among patients who received a permanent subcutaneous ICD, ventricular fibrillation was successfully detected in 100% of 137 induced episodes.
在接受永久性植入式心髒除顫器的患者中,137次誘發事件中心室顫動被100%成功發現。
The programmed stimulation induced sustained monomorphic ventricular tachycardia in 15 patients (30%) ventricular fibrillation in 4 (8%), no arrhythmias induced in 31 (62%).
程式電刺激誘發出單形持續性室速15例(30%),室顫4例(8%),無心律失常發生31例(62%)。
This study is to quantify time-varying dominant frequencies in electrocardiogram(ECG) during the ventricular fibrillation(VF).
研究心室顫動時主導頻率的動态性空間時間變化。
Objective To investigate whether the mutations in the cardiac sodium channel gene SCN 5 A can cause the idiopathic ventricular fibrillation (IVF).
目的研究心髒鈉離子通道基因SCN5A的突變是否能夠引起自發性心室纖顫(IVF),以幫助IVF的基因診斷和合理治療。
The main causes of death were ventricular fibrillation, bacterial and mycotic endocarditis and low cardiac output.
死亡原因主要為心室顫動,細菌性、黴菌性心内膜炎,低心輸出量綜合征等。
The major reasons of death in order were:cardiogenic shock, ventricular fibrillation, acute left heart failure, multiple organ failure, heart rupture and acute renal failure.
結論冠心病冠狀動脈支架置入術死亡主要原因是心源性休克、室顫、急性左心衰等。
Electrical defibrillation is the most effective method to treat the ventricular fibrillation(VF).
電擊除顫是最有效的治療室顫(VF)的方法。
He was diagnosed with frequent ventricular premature beats, ventricular fibrillation, drug-induced cardiac damage, and cardiac shock.
診斷為頻發室性早搏,室性顫動,藥物性心肌損害,心源性休克。
Programmed electric stimulation techniques were used to analyse the ventricular electrophysiological properties and to measure ventricular fibrillation thresholds.
應用心髒程式電刺激技術測定心室電生理參數及心室顫動阈值。
心室顫動(ventricular fibrillation,簡稱室顫)是一種緻命性心律失常,表現為心髒下腔室(心室)的電活動極度紊亂,導緻心肌無法協調收縮,進而喪失有效泵血功能。該病症是心髒驟停的主要原因之一,若不及時幹預,可在數分鐘内引發腦損傷或死亡。
從病理生理學角度看,心室顫動發生時,心室内多個區域的心肌細胞出現無序去極化,形成不協調的快速顫動(頻率通常超過300次/分鐘),而非正常的同步收縮。這種無效收縮使心髒排血量驟降,全身器官灌注中斷。
根據美國心髒協會(American Heart Association)的臨床指南,心室顫動的典型誘因包括急性心肌梗死、心肌病、電解質失衡(如低鉀血症)以及電擊傷等。臨床表現以突然意識喪失、脈搏消失和呼吸停止為特征,心電圖顯示紊亂的波浪形基線,無明确QRS波群。
治療方面,立即進行心肺複蘇(CPR)聯合電除顫是搶救關鍵。《新英格蘭醫學雜志》指出,在室顫發生3分鐘内實施除顫可使存活率提升至50%-70%[參考自權威醫學教材《Harrison's Principles of Internal Medicine》]。長期管理則需植入心律轉複除顫器(ICD)或使用抗心律失常藥物預防複發。
ventricular fibrillation(心室顫動)是醫學領域的重要術語,其含義和相關内容可綜合多個權威來源解釋如下:
ventricular fibrillation(簡稱VF)指心室肌肉發生快速且不協調的顫動,導緻心髒無法有效泵血,屬于緻命性心律失常。這種狀态下,心室收縮雜亂無章,心電圖表現為無規律的波動,患者可能在短時間内失去意識甚至猝死。
VF發生時,心髒無法向全身輸送足夠血液,患者可能出現意識喪失、抽搐、呼吸驟停等症狀。若未在數分鐘内進行急救,可迅速導緻死亡。某些情況下,劇烈情緒刺激(如恐懼)可能誘發VF。
VF是ventricular fibrillation的縮寫,廣泛用于醫學文獻和臨床場景。需注意與“心房顫動(Atrial Fibrillation, AF)”區分,後者危險性相對較低。
如需更專業的醫學解釋,可參考權威詞典或臨床指南(如來源1、2、9)。
【别人正在浏覽】