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Case of Recurrent Ventricular Fibrillations with Osborn Wave Developed during Therapeutic Hypothermia.

Kim CY, Bae MH, Kim NK, Yang YA, Kim KY, Lee JH, Eun JS, Cho Y - Korean Circ J (2015)

Bottom Line: Therapeutic hypothermia (TH) has been used to protect neurological functions in cardiac arrest patient.The cellular and ionic mechanisms of the Osborn wave have been suggested, and its relationship to tachyarrhythmias, such as ventricular tachycardia and ventricular fibrillation, is being explored.This case highlights the arrhythmogenic potential of Osborn wave and individual difference in response of TH.

View Article: PubMed Central - PubMed

Affiliation: Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea.

ABSTRACT
Therapeutic hypothermia (TH) has been used to protect neurological functions in cardiac arrest patient. Although Osborn wave is not pathognomonic of hypothermia, it is a well-known electrocardiogram finding of hypothermic patients. The cellular and ionic mechanisms of the Osborn wave have been suggested, and its relationship to tachyarrhythmias, such as ventricular tachycardia and ventricular fibrillation, is being explored. This case highlights the arrhythmogenic potential of Osborn wave and individual difference in response of TH.

No MeSH data available.


Related in: MedlinePlus

Changes after implantable cardioverter-defibrillator (ICD) insertion. A: after rewarming, the Osborn wave gradually disappears. B: an ICD is inserted.
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Figure 3: Changes after implantable cardioverter-defibrillator (ICD) insertion. A: after rewarming, the Osborn wave gradually disappears. B: an ICD is inserted.

Mentions: Two days after admission, the patient was extubated. He was alert and had no neurological deficit. Several days after, a coronary angiography revealed no significant narrowing in coronary vessels. An ergonovine provocation test was also done to see if coronary vasospasm had occurred. The result was negative. There was no induced ventricular tachycardia (VT) at electrophysiological study. The ECG several days after admission didn't show abnormality (Fig. 3A). He was diagnosed with idiopathic VF and discharged from our hospital after implantable cardioverter defibrillator insertion (Fig. 3B).


Case of Recurrent Ventricular Fibrillations with Osborn Wave Developed during Therapeutic Hypothermia.

Kim CY, Bae MH, Kim NK, Yang YA, Kim KY, Lee JH, Eun JS, Cho Y - Korean Circ J (2015)

Changes after implantable cardioverter-defibrillator (ICD) insertion. A: after rewarming, the Osborn wave gradually disappears. B: an ICD is inserted.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4310985&req=5

Figure 3: Changes after implantable cardioverter-defibrillator (ICD) insertion. A: after rewarming, the Osborn wave gradually disappears. B: an ICD is inserted.
Mentions: Two days after admission, the patient was extubated. He was alert and had no neurological deficit. Several days after, a coronary angiography revealed no significant narrowing in coronary vessels. An ergonovine provocation test was also done to see if coronary vasospasm had occurred. The result was negative. There was no induced ventricular tachycardia (VT) at electrophysiological study. The ECG several days after admission didn't show abnormality (Fig. 3A). He was diagnosed with idiopathic VF and discharged from our hospital after implantable cardioverter defibrillator insertion (Fig. 3B).

Bottom Line: Therapeutic hypothermia (TH) has been used to protect neurological functions in cardiac arrest patient.The cellular and ionic mechanisms of the Osborn wave have been suggested, and its relationship to tachyarrhythmias, such as ventricular tachycardia and ventricular fibrillation, is being explored.This case highlights the arrhythmogenic potential of Osborn wave and individual difference in response of TH.

View Article: PubMed Central - PubMed

Affiliation: Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea.

ABSTRACT
Therapeutic hypothermia (TH) has been used to protect neurological functions in cardiac arrest patient. Although Osborn wave is not pathognomonic of hypothermia, it is a well-known electrocardiogram finding of hypothermic patients. The cellular and ionic mechanisms of the Osborn wave have been suggested, and its relationship to tachyarrhythmias, such as ventricular tachycardia and ventricular fibrillation, is being explored. This case highlights the arrhythmogenic potential of Osborn wave and individual difference in response of TH.

No MeSH data available.


Related in: MedlinePlus