Background and Aim. The aim of study was to evaluate safety, feasibility, and procedural variables of transradial approach compared with transfemoral approach in a standard population of patients undergoing coronary catheterization as one of the major criticisms of the transradial approach is that it takes longer overall procedure and fluoroscopy time, thereby causing more radiation exposure. Method. Between January 2015 and December 2015, a total of 1,997 patients in LPS Institute of Cardiology, GSVM Medical College, Kanpur, UP, India, undergoing coronary catheterization were randomly assigned to the transradial or transfemoral approach. Result. Successful catheterization was achieved in 1045 of 1076 patients (97.1%) in the transradial group and in 918 of 921 patients (99.7%) in the transfemoral group (p = 0.001). Comparing the transradial and transfemoral approaches, fluoroscopy time (2.46 ± 1.22 versus 2.83 ± 1.31 min; p = 0.32), procedure time (8.89 ± 2.72 versus 9.33 ± 2.82 min; p = 0.56), contrast volume (67.52 ± 22.54 versus 71.63 ± 25.41 mL; p = 0.32), radiation dose as dose area product (24.2 ± 4.21 versus 22.3 ± 3.46 Gycm2; p = 0.43), and postprocedural rise of serum creatinine (6 ± 4.5% versus 8 ± 2.6%; p = 0.41) were not significantly different while vascular access site complications were significantly lower in transradial group than transfemoral group (3.9% versus 7.6%; p = 0.04). Conclusion. The present study shows that transradial access for coronary angiography is safe among patients compared to transfemoral access with lower rate of local vascular complications.
BackgroundLeft ventricular (LV) dyssynchrony frequently occurs in patients with heart failure (HF). QRS ≥ 120 ms is a surrogate marker of electrical dyssynchrony, which occurs in only 30% of HF patients. In contrary, in those with normal QRS (nQRS) duration, LV dyssynchrony has been reported in 20-50%. This study was carried out to investigate the role of fragmented QRS (fQRS) on the surface electrocardiography (ECG) as a marker of electrical dyssynchrony to predict the presence of significant intraventricular dyssynchrony (IVD) by subsequent echocardiographic assessment.MethodsA total of 226 consecutive patients with non-ischemic cardiomyopathy were assessed for fQRS on surface ECG as defined by presence of an additional R wave (R prime), notching in nadir of the S wave, notching of R wave, or the presence of more than one R prime (fragmentation) in two contiguous leads corresponding to a major myocardial segment. Tissue Doppler imaging (TDI) was performed in the apical views (four-chamber, two-chamber and long-axis) to analyze all 12 segments at both basal and middle levels. Time-to-peak myocardial sustained systolic (Ts) velocities were calculated. Significant systolic IVD was defined as Ts-SD > 32.6 ms as known as “Yu index”.ResultOf the total patients, 112 had fQRS (49.5%), while 114 had nQRS (50.5%) with male dominance (M/F = 71:29). Majority of patients were in NYHA class II (n = 122, 54%) followed by class III (n = 83; 37%), and class IV (n = 21; 9%). There were no significant differences among both groups for baseline parameters except higher QRS duration (102.42 ± 14.05 vs. 91.10 ± 13.75 ms; P = 0.001), higher Yu index (35.64 ± 12.79 vs. 20.45 ± 11.17; P = 0.01) and number of patients with positive Yu index (78.6% vs. 21.1%; P = 0.04) in group with fQRS compared with group with nQRS. fQRS complexes had 84.61% sensitivity and 80.32% specificity with positive predictive value of 78.6% and negative predictive value of 85.9% to detect IVD. On detailed segmental analysis for fQRS distribution, inferior segment had maximum (37%), followed by anterior (23%), lateral (19%), inferior and lateral (11%), anterior and inferior (8%), and anterior and lateral (2%). Among 104 patients with significant dyssynchrony, 88 patients (84.6%) had fQRS in the dyssynchronic segment.ConclusionFragmentation of QRS complex is an important predictor of electro-mechanical dyssynchrony. It is also helpful in localizing the dyssynchronous segment. In future, larger studies may be carried out to investigate the role of fQRS as a predictor of response to cardiac resynchronization therapy (CRT) in this subgroup of HF patients with narrow QRS.
ALCAPA syndrome (anomalous origin of the left coronary artery from the pulmonary artery) is a rare disease but lethal with clinical expression from myocardial infarction, congestive heart failure to death during early infancy and unusual survival to adulthood. We report a 73-year-old woman with ALCAPA who presented with exertional dyspnea (NYHA functional class II) over past 2 years. Physical examination revealed soft S, long mid diastolic rumbling murmur and apical pan-systolic murmur. Electrocardiography displayed biatrial enlargement and poor R progression and normal sinus rhythm. Echocardiography established calcified severe mitral stenosis (MS), presence of continuous flow entering the pulmonary trunk, turbulent continuous flow in inter-ventricular septum with left to right shunt in contrast echocardiography and normal systolic function. Coronary angiogram showed absence of left coronary artery (LCA) originating from aorta, dilated and tortuous right coronary artery (RCA) and abundant Rentrop grade 3 intercoronary collateral communicating with LCA originating from pulmonary trunk which was also confirmed on coronary CT angiogram thus establishing diagnosis of ALCAPA. It is exceedingly rare to be associated with severe MS. However, such a long survival in our patient can be explained by the severe pulmonary arterial hypertension which may be contributing to lesser coronary steal.
Successful percutaneous retrieval of a dislodged J-tip guide wire by a self-constructed snare in a 75-year-old patient: a safe and feasible approach Skuteczne usunięcie przemieszczonego prowadnika z końcówką w kształcie "J" za pomocą samodzielnie skonstruowanej pętli u 75-letniego pacjenta-bezpieczna i dostępna metoda Abstract Since the first report of percutaneous retrieval of intravascular foreign body in 1964, it has been accepted as a favourite approach for intravascular foreign body removal. Snares, biopsy forceps, dormia basket or tip deflecting wires are available in the armamentarium for this approach. Herein, we report percutaneous retrieval of a dislodged J-tip guide-wire by self-constructed snare. A patient was a 75-year-old woman who was admitted with capture failure following post pacemaker implantation. J-tip guide-wire was inadvertently left in her inferior vena cava during temporary pacemaker insertion. The guide wire was approached through right subclavian vein by a self-constructed snare and it was removed without any complications. Use of snares for intravascular foreign body removal is frequently reported and has been successful with low complication rates; also, the low cost of such snares makes it safe and economical.
23-year-old man presented with Stokes-Adams attacks due to sinus node dysfunction. He was being treated for malaria with chloroquine for the last two days. Temporary pacemaker was implanted. Subsequently he developed all spectrum of atrioventricular block following recovery of sinus node dysfunction which also recovered on the fifteenth day and was discharged. Cardiac damage, such as cardiomyopathy and conduction system disturbances, is regarded as uncommon consequences of acute chloroquines's toxicity. Here we present a case in which chloroquine used as acute therapy for malaria resulted in conduction disorder beginning from sinus node dysfunction to Mobitz I atrioventricular block to complete heart block with recovery to normal sinus rhythm in single patient.
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