RESUMO
BACKGROUND: Sites of local abnormal ventricular activation (LAVA) are ventricular tachycardia (VT) ablation targets. In nonischemic cardiomyopathy (NICM), minute and sparse LAVA potentials are mapped with difficulty with direction-sensitive bipolar electrograms (EGM). A method for its optimal characterization independent of electrode orientation has not been explored. OBJECTIVE: Maximize voltages and calculate overall activation direction at LAVA sites, independent of catheter and wave direction, using omnipolar technology (OT) in NICM. METHODS: Four diseased isolated human hearts from NICM patients were mapped epicardially using a high-density grid. Bipolar EGMs with at least 2 activation segments separated by at least 25 ms were identified. We used OT to maximize voltages (LAVAMAX) and measured overall wave direction (LAVAFLOW) for both segments. Clinically relevant voltage proportion (CRVP) was used to estimate the proportion of directionally corrected bipoles. Concordance and changes in direction vectors were measured via mean vector length and angular change. RESULTS: OT provides maximal LAVA voltages (OT: 0.83 ± 0.09 mV vs Bi: 0.61 ± 0.06 mV, P < .05) compared to bipolar EGMs. OT optimizes LAVA voltages, with 32% (CRVP) of LAVA bipoles directionally corrected by OT. OT direction vectors at LAVA sites demonstrate general concordance, with an average of 62% ± 5%. A total of 72% of direction vectors change by more than 35° at LAVA sites. CONCLUSION: The omnipolar mapping approach allows maximizing voltage and determining the overall direction of wavefront activity at LAVA sites in NICM.
RESUMO
INTRODUCTION: There is an upsurge in the incidence of acute pancreatitis over the last few decades; although the case fatality rate has remained unchanged. This may either be due to increased incidence of gallstone disease or improvement in diagnostic modalities. It is a potentially life threatening disease with varying severity of presentation. METHODS: This observational analytical study was conducted in the Department of General Surgery in our hospital for a period of one year. All patients of acute pancreatitis were included in the study as per inclusion & exclusion criteria. OBSERVATIONS AND RESULTS: Total 62 Patients were included in the study. Gall stones disease is the most common cause of acute pancreatitis. The mean age of the patients in the study was 39 years. 28 females and 34 male patients were present. 22 patients of the patients had severe disease as per Atlanta classification. Four out of these 22 severe pancreatitis patients expired. All patients in the severe pancreatitis group had mild to life threatening complications and pleural effusion was the most common followed by necrosis. There was notable difference in terms of hospital stay between mild group and severe group of AP. CONCLUSION: The clinician should be aware that acute pancreatitis can occur in any age group and gender due to different etiology. The severity of AP does not depend on etiology, age or gender and it is associated with significant morbidity and mortality. SAP can be diagnosed on clinicoradiological basis and appropriate management can be done in those patients.
RESUMO
INTRODUCTION: Gallstone disease is one of the most common surgical diseases. Complications associated with cholelithiasis is not uncommon, but gallbladder perforation is a rare complication of acute cholecystitis with cholelithiasis. This gallbladder perforation may present in different ways like free perforation inside peritoneal cavity causing generalized peritonitis, localized collection around gallbladder fossa after perforation and in chronic cases cholecystoenteric fistula. Here we present our experience of this condition with a review of literature for a different presentation of this condition. MATERIALS AND METHODS: This study was done for 2 years, and patients who were diagnosed with gallbladder perforation either preoperatively or intraoperatively were included. RESULTS: There was a total of 16 patient included in the study during this period which were either diagnosed preoperatively or intraoperatively of gallbladder perforation (GBP). CONCLUSION: GBP, though a rare complication of cholecystitis with high morbidity and mortality, has no specific pathognomic feature and is often misdiagnosed or late diagnosed. Nowadays most cases can be managed with improved diagnostic means and therapeutic modalities (endoscopic, laparoscopic, endostaplers). HOW TO CITE THIS ARTICLE: Patel G, Jain A, et al. Gallbladder Perforation: A Prospective Study of Its Divergent Appearance and Management. Euroasian J Hepatogastroenterol 2019;9(1):14-19.
