Clinical Characteristics of Ventricular Premature Beats Originating from Right Ventricular Outflow Tract

Oh, Hye Lim; Choue, Chung Whee; Cho, Jin Man; Kang, Ho Jung; Kim, Kwon Sam; Song, Jung Sang; Bae, Jong Hoa

doi:10.4070/kcj.2003.33.12.1118

Cited by 2 publications

(3 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This arrhythmia has clinical importance because it is common in the general population 1) 2) 3) and because some individuals with the disorder develop sudden cardiac death or cardiomyopathy (CMP). 4) 5) 6) 7) 8) 9) 10) Idiopathic VPCs are often accompanied by a variety of symptoms. However, the understanding of the basis of the symptoms frequently observed in this disorder remains limited.…”

Section: Introductionmentioning

confidence: 99%

Coupling Interval Ratio Is Associated with Ventricular Premature Complex-Related Symptoms

Park

Chun

et al. 2015

Korean Circ J

View full text Add to dashboard Cite

Background and ObjectivesFrequent ventricular premature complex (VPC) is one of the most common arrhythmia syndromes. Symptoms observed frequently with this arrhythmia syndrome remain limited. We sought to identify predictors of VPC-related symptoms by analyzing demographic information, VPC burden, and VPC surface electrocardiogram characteristics.Subjects and MethodsWe prospectively enrolled 109 patients with idiopathic outflow tract VPCs (63 males, 49±16 years old). They were divided into Group A (n=30, without VPC-related symptoms of palpitations or "dropped beats") and Group B (n=79, with VPC-related symptoms). Measured parameters were sinus and VPC QRS width, coupling interval (CI) between the previous sinus beat and VPC, CI ratio (%, CI/sinus cycle length), post-VPC CI and CI ratio, and VPC amplitude.ResultsBoth groups had similar age (p=0.22), daily VPC burden (p=0.15), and VPC site of origin (p=0.36). The VPC CI ratio was higher in Group B (60±15%) than in Group A (49±22%) (p=0.01).ConclusionVPC-related symptoms are associated with a higher VPC CI ratio (>50%). The physiologic basis for these results deserves further study.

show abstract

Section: Introductionmentioning

confidence: 99%

Coupling Interval Ratio Is Associated with Ventricular Premature Complex-Related Symptoms

Park

Chun

et al. 2015

Korean Circ J

View full text Add to dashboard Cite

show abstract

“…Its symptoms are chest pain (13%), palpitations (39.8%), dizziness (3.7%), dyspnea (3.1%) and syncope (2.5%), and sometimes, it is asymptomatic (37.9%). [ 14 , 15 ] Even in this patient, there is a possibility of arrhythmia may cause Postoperation hypotension at the PACU. Another possibility is that the blood loss (400 mL) and the urine output (630 mL), together with the modest total volume of fluid replacement of 2100 mL, resulted in a relative hypovolemic state.…”

Section: Discussionmentioning

confidence: 95%

“…Idiopathic ventricular outflow tachycardia has 3 clinical forms: paroxysmal sustained monomorphic VT, repetitive non-sustained VT, or PVCs. Its symptoms are chest pain (13%), palpitations (39.8%), dizziness (3.7%), dyspnea (3.1%) and syncope (2.5%), and sometimes, it is asymptomatic (37.9%) [14,15] . Even in this patient, there is a possibility of arrhythmia may cause Postoperation hypotension at the PACU.…”

Section: Discussionmentioning

confidence: 99%

Ventricular tachycardia of right ventricular outflow tract origin during the perioperative period

et al. 2021

View full text Add to dashboard Cite

Rationale: Idiopathic ventricular tachycardia (VT) occurs in individuals without structural abnormalities in the heart, accounts for approximately 10% of total VTs. Furthermore, approximately 70% of idiopathic VTs originate from Right ventricular outflow tract (RVOT). However, among perioperative arrhythmias, incidence of VT after surgery is extremely rare and most arrhythmias are atrial origin . Patient concerns: A 69-year-old man with permanent pacemaker underwent colon surgery. Diagnoses: Patient suffered from low blood pressure and dizziness, sweating at post anesthetic care unit (PACU) and heart rate (HR) increased suddenly to 200 beats/min with monomorphic VT after bolus ephedrine administration and continuous dopamine infusion. Interventions: Pacemaker interrogation followed by DC cardioversion was done. Outcomes: Patient's vital signs became normal and symptoms are subsided. Lessons: RVOT VT can be caused by triggering activities, such as ephedrine, dopamine, and inadequate fluid management. These triggering activities are initiated by acceleration of HR from ventricles with infusion of catecholamine which lead monomorphic VT originating from RVOT. RVOT origin PVCs can be precipitated into monomorphic VT by administrating catecholamines such as ephedrine and dopamine even in patient with pacemaker. The mechanism of these VTs includes catecholamine induced acceleration of HR. Since RVOT PVCs can be recognize by 12 EKGs, we should be pay more attentions to the pre-operation EKG and be cautious using catecholamines.

show abstract

Clinical Characteristics of Ventricular Premature Beats Originating from Right Ventricular Outflow Tract

Cited by 2 publications

References 19 publications

Coupling Interval Ratio Is Associated with Ventricular Premature Complex-Related Symptoms

Coupling Interval Ratio Is Associated with Ventricular Premature Complex-Related Symptoms

Ventricular tachycardia of right ventricular outflow tract origin during the perioperative period

Contact Info

Product

Resources

About