電子製品監視システムとインプラント可能なカーディオバーター-デフィブリレーターとの相互作用
W J Groh1, S A Boschee, E D Engelstein
1Krannert Institute of Cardiology, Indiana University, Indianapolis, IN, USA.
Circulation
|July 27, 1999
まとめ
埋め込み式心動除細動器 (ICD) を搭載した患者は,電子物品監視システムを通って安全に歩くことができます. しかし,これらのシステムの近くに留まると,不適切なICDショックが発生し,患者の安全を脅かす可能性があります.
科学分野:
- 心臓病学 心臓病学
- バイオメディカルエンジニアリング
- 医療機器 医療機器について
背景:
- implantable cardioverter-defibrillators (ICDs) による不適切なショックは,電子物品監視システム (EAS) と関連付けられている.
- 患者がEASシステムを通過したり,EASシステムに近寄ったりする際のICDに関連する特定のリスクについては,さらなる明確化が必要である.
研究 の 目的:
- ICD機能の安全性を評価するために,患者がEASシステムを通過したり,EASシステムに晒されているとき.
- ICDとEASシステムの間の潜在的な相互作用を調査し,有害事象につながる可能性があります.
主な方法:
- ICDを持つ170人の被験者は,短いウォーク・スルーと3つの一般的なEASシステムへの長期曝露 (6インチ以内の2分) の間に評価されました.
- ICD機能は,ICDペースのシナリオを含む,これらの曝露の間に監視されました.
主要な成果:
- EASシステムの10〜15秒のウォークスルーでは,ICD機能に対する悪影響は観察されなかった.
- 長期曝露中の169人のうち19人の被験者に相互作用が発生し,そのうち7人が臨床的に重要で,不適切なICDショックの可能性がありました.
- 12人の被験者は軽微な相互作用を経験しました.
結論:
- EASシステムを通過することは,ICDの患者にとって安全です.
- 長期にわたる曝露またはEASシステムの近くに留まることは,潜在的に不適切なICDショックを引き起こす可能性があります.
さらに関連する動画
関連する概念動画
Pulse rhythm
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...
Instrumentation Amplifier
An electrocardiography (ECG) machine is an essential piece of medical equipment used to monitor the electrical activity of the heart. It operates by detecting small electrical changes on the skin that result from the depolarization of the heart muscle during each heartbeat. However, these signals are in the microvolt range and can be easily overwhelmed by noise or interference.
To overcome this challenge, an ECG machine utilizes an instrumentation amplifier. This specialized amplifier is...
To overcome this challenge, an ECG machine utilizes an instrumentation amplifier. This specialized amplifier is...
Instrument Transformers
Instrument transformers, comprising voltage transformers (VTs) and current transformers (CTs), play crucial roles in power substations by providing isolated replicas of current or voltage for measurement and protection purposes. Voltage transformers reduce the primary voltage to levels suitable for relay operation and measurement, while current transformers scale down the primary current. The primary winding of a current transformer often consists of a single turn, achieved by threading the...
Differential Relays
Differential relays are used to protect generators, buses, and transformers by comparing electrical quantities at different points. When a fault occurs, the difference in current between the two points triggers the relay to operate, opening the circuit breaker. Under normal conditions, the current entering (i1) and leaving (i2) a generator are equal. When a fault occurs, however, these currents become unequal, and the difference current flows in the relay operating coil, causing the relay to...
Holter Monitor: 24-Hour Monitoring
Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...


