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The electrocardiogram findings in patients with LVOT and RVOT ventricular tachycardia
Farsavian Aa, Emkanjou Z, Shirali A,
Volume 69, Issue 8 (6 2011)
Abstract

Normal 0 false false false EN-US X-NONE AR-SA MicrosoftInternetExplorer4 Background: Distinguishing the origin of ventricular tachycardia (VT) by electrocardiogram (ECG) which is performed in all patients, helps to diagnose the cause of VT before trying invasive procedures. The aim of this study was to compare the ECG findings in patients with VT originating from Right or Left Ventricular Outflow Tracts (RVOT or LVOT).
Methods : Fifty nine patients with VT originating from LVOT or RVOT were selected for this cross-sectional study. The patients were recruited while they were attending Shahid Rajaei Hospital in Tehran, Iran in 2009-2010 for catheter ablation. The participants were evaluated for the prevalence of LVOT and RVOT and were compared for the success rate of radiofrequency catheter ablation.
Results : Out of 59 patients, 44.1% were male and 55.9% were female. The mean age of the participants was 41.67 (SD=13.76) years. QRS transition and notch in ECGs were significantly different (respectively, P=0.027 and P=0.007) between patients with LVOT and RVOT. R-to-QRS duration in precordial leads was significantly longer in patients with LVOT than those with RVOT [0.81 (SD=0.06) ms vs. 0.69 (SD=0.16), P=0.015]. Successful ablation was performed in 73.2% of patients with RVOT versus 93.3% of those with LVOT, but despite a higher rate the differences were not statistically significant (P=0.215).
Conclusion: In this study, RF catheter ablation was successful like other studies on patients with ventricular tachycardia and RVOT VT and LVOT VT had significant differences in notch, QRS transition and R-to-QRS duration in precordial leads which are important in differentiating between the two conditions.


Investigating of the time and rate of occurrence of hematoma after angiography and its related factors in Mazandaran heart center
Samad Golshani, Zahra Azizi, Aliasghar Farsavian, Abbas Alipour,
Volume 81, Issue 5 (August 2023)
Abstract
Background: Coronary angiography is an elective method to confirm or rule out coronary artery disease and to decide on the treatment plan but it is an invasive method and it has some complications. The most important and common complication was hematoma. It could be the cause of mortality and morbidity. The present study was conducted with the aim of investigating the time of hematoma occurrence after angioplasty and investigating the effect of various factors (for example age, sex, BMI, BP, hematocrit, anticoagulant agent, etc.) on the occurrence of hematoma.
Methods: This was a prospective cohort study from March 2022 to March 2023 in Mazandaran heart center. The study population was patients who underwent angioplasty through the femoral artery. If the ACT is less than 150-180, sheet removal was done by applying pressure with the hand on the proximal puncture site for 15-20 minutes and ensuring sufficient hemostasis. Then, the ultrasound of the puncture site was performed before pulling the sheet/one hour and six hours after pulling the sheet, and after collecting the data, the data were analyzed to study the effect of BMI, BP, sex, hematocrit, hemoglobin, age, time of sheet removal, anticoagulant agent, etc. on prevalence of hematoma and it size.
Results: 200 patients were examined, of which 44(22%) had hematoma. Women had hematoma more than men (P<0.05). BMI and blood pressure in patients with hematoma decreased and increased, respectively (P<0.05). Older age, female gender, lower hematocrit, and longer duration of sheet retention were effective factors in increasing hematoma size (P<0.05). In the logistic regression model, with increasing BMI, the chance of hematoma occurrence decreased (P=0.029, OR=0.831).
Conclusion: Controlling blood pressure and preventing of decreasing the hematocrit, reduces the incidence of hematoma in patients after angiography. Also, preventing hematocrit drop and removal of sheet at the appropriate time, can prevent of increasing in size of hematoma. There is some difference between nursing report and sonography finding. Nursing report overestimated the hematoma size.

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