scholarly journals THE COMPLEXITY OF THE TREATMENT OF CARDIAC ARRHYTHMIAS IN PREGNANT WOMEN. CASE OF RADIOFREQUENCY ABLATION OF ATRIAL TACHYCARDIA IN A PREGNANT WOMAN USING A THREE-DIMENSIONAL NONFLUOROSCOPIC NAVIGATION SYSTEM

2019 ◽  
Vol 34 (2) ◽  
pp. 106-112
Author(s):  
M. A. Kirgizova ◽  
A. A. Dedkova ◽  
I. V. Kisteneva ◽  
S. N. Krivolapov
Keyword(s):  
Radiofrequency Ablation ◽  
Pregnant Women ◽  
Radiation Exposure ◽  
Cardiac Arrhythmias ◽  
Atrial Tachycardia ◽  
Clinical Case ◽  
Three Dimensional ◽  
The Body ◽  
Paroxysmal Supraventricular Tachycardia ◽  
Navigation Systems

Purpose. Pregnant women, due to physiological changes in the body, are more prone to cardiac arrhythmias, the frequency of which ranges from 5 to 18%. Paroxysmal supraventricular tachycardia (SVT) occurs in 14% of pregnant women with cardiac arrhythmias. In the treatment of cardiac arrhythmias, radiofrequency ablation (RFA) is currently preferred over antiarrhythmic drugs. However, RFA is associated with radiation exposure to the mother and fetus. The current level of development of arrhythmology provides a unique opportunity to eliminate cardiac arrhythmias without the use of fluoroscopic technologies, which completely excludes radiation exposure.Clinical case. The article presents a clinical case of a 17-year-old patient diagnosed with idiopathic paroxysmal atrial tachycardia successfully treated in Cardiology Research Institute, Tomsk NRMC. When admitted to the hospital, the patient was at 31 weeks of pregnancy.Conclusion. The described case shows the possibility and necessity of using non-fluoroscopic navigation systems when performing RFA in pregnant women. RFA using electroanatomic mapping allows to remove the burden of receiving antiarrhythmic therapy in pregnant women without the use of X-ray.

scholarly journals Cardiac Electrophysiological Study & Radiofrequency Ablation: Our Experience in Nepal

1970 ◽  
Vol 1 (1) ◽  
pp. 4-7
Author(s):  
Sujeeb Rajbhandari ◽  
Man Bdr KC ◽  
Roshan Raut ◽  
Murari Dhungana ◽  
Rajesh Shaha ◽  
...  
Keyword(s):  
Internal Medicine ◽  
Radiofrequency Ablation ◽  
Success Rate ◽  
Complication Rate ◽  
Cardiac Arrhythmias ◽  
Electrophysiological Study ◽  
Paroxysmal Supraventricular Tachycardia ◽  
Radiofrequency Energy ◽  
Supraventricular Arrhythmias ◽  
Cardiac Intervention

Background and aim - Cardiac Electrophysiological Study and Radiofrequency ablation is a form of cardiac intervention for diagnosing and treating cardiac arrhythmias. Various catheters are placed in the various parts of the heart to record signals and radiofrequency energy is used for the ablation. Methods - A total of 768 patients with paroxysmal supraventricular arrhythmias underwent the procedure at Shahid Gangalal National Heart Centre, Kathmandu, Nepal in a period between October 2003 to September 2011. Results - The success rate is high (92%) and the complication rate is low (0.8%) which is comparable to the results shown in various literatures. Conclusion - Cardiac Electrophysiological study and Radiofrequency ablation is fairly safe and provides a definitive cure to the patients with paroxysmal supraventricular tachycardia. DOI: http://dx.doi.org/10.3126/jaim.v1i1.5831 Journal of Advances in Internal Medicine. 2012; 1(1): 4-7

Catheter ablation of focal atrial tachycardia in children using three-dimensional electroanatomic mapping system: a 6-year single-centre experience

2020 ◽  
pp. 1-7
Author(s):  
Gulhan Tunca Sahin ◽  
Hasan Candas Kafali ◽  
Erkut Ozturk ◽  
Alper Guzeltas ◽  
Yakup Ergul
Keyword(s):  
Radiofrequency Ablation ◽  
Catheter Ablation ◽  
Success Rate ◽  
Atrial Tachycardia ◽  
Three Dimensional ◽  
Electroanatomic Mapping ◽  
Electroanatomic Mapping System ◽  
Mapping System ◽  
Electrophysiological Procedures ◽  
Focal Atrial Tachycardia

Abstract Objective: This study demonstrates the clinical and electrophysiological details of catheter ablation conducted in children with focal atrial tachycardia using three-dimensional electroanatomic mapping systems. Patients and methods: Electrophysiological procedures were performed using the EnSite™ system. Results: Between 2014 and 2020, 60 children (median age 12.01 years [16 days–18 years]; median weight 41.5 kg [3–98 kg]) with focal atrial tachycardia and treated with catheter ablation were evaluated retrospectively. Tachycardia-induced cardiomyopathy was developed in 15 patients (25%). Most of the focal atrial tachycardia foci were right-sided (75%), and more than one focus was found in four patients. Radiofrequency ablation was performed in 47 patients (irrigated radiofrequency ablation in seven cases), cryoablation in 9, and radiofrequency ablation and cryoablation in the same session in 4 patients. The median procedural time was 163.5 minutes (82–473 minutes). Fluoroscopy was used in 29 of (48.3%) patients (especially for left-side substrate) with a mean time of 8.6 ± 6.2 minutes. The acute success rate was 95%. The procedure failed in three patients, and recurrence was observed in 3.5% of patients (2/57) during a median follow-up of 17 months (2–69 months). The second ablation was performed in four cases, of which three were successful. Overall success rate was 96.6% with no major complications observed, except in one patient with minimal pericardial effusion. Conclusion: Catheter ablation seems to be an effective and safe treatment in focal atrial tachycardia. Electroanatomic mapping system can facilitate the ablation procedure and minimise radiation exposure.

scholarly journals Six-months success of radiofrequency ablation in cardiac arrhythmias treatment: Experience of our centre

2019 ◽  
Vol 76 (4) ◽  
pp. 398-403
Author(s):  
Ruzica Jurcevic-Mudric ◽  
Lazar Angelkov ◽  
Milosav Tomovic ◽  
Dejan Kojic ◽  
Predrag Milojevic
Keyword(s):  
Atrial Fibrillation ◽  
Ventricular Tachycardia ◽  
Radiofrequency Ablation ◽  
Atrial Flutter ◽  
Cardiac Arrhythmias ◽  
Paroxysmal Atrial Fibrillation ◽  
Atrial Tachycardia ◽  
Pulmonary Veins ◽  
Av Node

Background/Aim. Numerous trials have shown a high success of radiofrequency ablation (RFA) in the treatment of the patients with cardiac arrhythmias. We aimed to examine the RFA initial success in treatment of different cardiac arrhythmias and the RFA success after 6 months of followup. Second aim was to evaluate influence of all clinical and echocardiography parameters on initial and 6-month success and failure of RFA. Methods. The present study included 320 consecutive patients with atrial and ventricular arrhythmias in which RFA was performed during 2014 in the Institute for Cardiovascular Diseases ?Dedinje?, Belgrade, Serbia. We evaluated the initial RFA success and success of this procedure after 6-month follow-up. We also investigated the prognostic role of clinical and echocardiography parameters on initial and 6-month success and failure of RFA. Results. The RFA initial success for RFA of atrioventriculas (AV) node and AV nodal reentrant tachycardia (AVNRT) was 100%, RFA of pulmonary veins 99%, RFA of atrial flutter 92%, RFA of premature ventricular complexes (PVC) and the Wolf-Parkinson-White (WPW) syndrome 87%, RFA of ventricular tachycardia 85% and RFA of atrial tachycardia 78%. The success of RFA after 6 months of follow-up for RFA of the AV node was 100%, RFA of AVNRT 94%, RFA of atrial flutter 90%, RFA of WPW syndrome 86%, RFA of pulmonary veins 79% (paroxysmal atrial fibrillation 88% and persistent atrial fibrillation 63% with a significant difference p < 0.05), RFA of PVC 78%, RFA of ventricular tachycardia 77% and RFA of atrial tachycardia 67%. Conclusion. This study proved a very high RFA initial success in treatment of cardiac arrhythmias and a satisfactory RFA success after 6 months of follow-up. Only the prognostic value had the type of atrial fibrillation in the group with catheter ablated pulmonary veins: after 6-month follow-up, the patients with paroxysmal atrial fibrillation had a significantly better outcome than those with persistent form.

scholarly journals RADIOFREQUENCY ABLATION IN ATRIAL TACHYCARDIA PAROXYSM ON EXAMPLE OF CLINICAL CASE

2018 ◽  
Keyword(s):  
Radiofrequency Ablation ◽  
Catheter Ablation ◽  
Left Atrium ◽  
Radiofrequency Catheter Ablation ◽  
Atrial Tachycardia ◽  
Clinical Case ◽  
Gradual Increase ◽  
Total Power

The disappearance of atrial tachycardia paroxysms after radiofrequency catheter ablation (RFA) of ectopic focus in a left atrium is presented on example of clinical case. Atrial tachycardia paroxysms disappeared after ablation completely. In this case, the RFA of atrial tachycardia was effective. The initial high total power of the HRV spectrum in the patient after ablation decreased by 5 times, but may predict rhythm disturbances in future. In pharmacotherapy, which included cardiomagnil and bisoprolol, the reduction in HRV suggested a gradual increase of the bisoprolol dose.

Radiofrequency Ablation of Cardiac Arrhythmias Using a Three-Dimensional Real-Time Position Management and Mapping System

2002 ◽  
Vol 25 (12) ◽  
pp. 1699-1707 ◽  
Author(s):  
JURGEN SCHREIECK ◽  
GJIN NDREPEPA ◽  
BERNHARD ZRENNER ◽  
MICHAEL A.E. SCHNEIDER ◽  
SONJA WEYERBROCK ◽  
...  
Keyword(s):  
Radiofrequency Ablation ◽  
Real Time ◽  
Cardiac Arrhythmias ◽  
Three Dimensional ◽  
Mapping System ◽  
Time Position ◽  
Position Management

scholarly journals Three-Dimensional Kinetic Adaptations of Gait throughout Pregnancy and Postpartum

Scientifica ◽  
2015 ◽  
Vol 2015 ◽  
pp. 1-14 ◽  
Author(s):  
Marco Branco ◽  
Rita Santos-Rocha ◽  
Filomena Vieira ◽  
Liliana Aguiar ◽  
António Prieto Veloso
Keyword(s):  
Pregnant Women ◽  
Kinetic Parameters ◽  
Hip Joint ◽  
Mechanical Load ◽  
Three Dimensional ◽  
Eccentric Contraction ◽  
The Body ◽  
Plantar Flexors ◽  
Pregnancy And Postpartum ◽  
Reaction Forces

Biomechanical adaptations that occur during pregnancy can lead to changes on gait pattern. Nevertheless, these adaptations of gait are still not fully understood. The purpose was to determine the effect of pregnancy on the biomechanical pattern of walking, regarding the kinetic parameters. A three-dimensional analysis was performed in eleven participants. The kinetic parameters in the joints of the lower limb during gait were compared at the end of the first, second, and third trimesters of pregnancy and in the postpartum period, in healthy pregnant women. The main results showed a reduction in the normalized vertical reaction forces, throughout pregnancy, particularly the third peak. Pregnant women showed, during most of the stance phase, medial reaction forces as a motor response to promote the body stability. Bilateral changes were observed in hip joint, with a decrease in the participation of the hip extensors and in the eccentric contraction of hip flexors. In ankle joint a decrease in the participation of ankle plantar flexors was found. In conclusion, the overall results point to biomechanical adjustments that showed a decrease of the mechanical load of women throughout pregnancy, with exception for few unilateral changes of hip joint moments.

scholarly journals Clinical case of sharp bowel obstruction during pregnancy for a patient with an extracorporal impregnation and large intergenic interval

2021 ◽  
pp. 77-82
Author(s):  
V.L. Dronova ◽  
◽  
O.I. Dronov ◽  
O.M. Mokrik ◽  
P.P. Bakunets ◽  
...  
Keyword(s):  
Pregnant Woman ◽  
Intestinal Obstruction ◽  
Pregnant Women ◽  
Bowel Obstruction ◽  
Clinical Case ◽  
Acute Intestinal Obstruction ◽  
The Body ◽  
Biologically Active ◽  
Surgical Pathology ◽  
Septic Complications

The great importance in the development of acute intestinal obstruction (AIO) is the change in intestinal kinetics during pregnancy. In pregnant women, the rhythmic function of the intestine slows down due to an increase in the threshold of excitability of its receptors to biologically active substances. The article provides an overview of modern literary sources on the problem of acute intestinal obstruction in pregnant women. According to foreign literature sources, the incidence of intestinal obstruction in pregnant women is 1:3600–1:66000, and complications of diseases of the digestive system rank 4th among the causes of maternal mortality during pregnancy — 9%. According to domestic scientific sources, the frequency with which intestinal obstruction occurs in pregnant women is 1:40000–1:50000 births, mortality reaches 35–50%, stillbirth — 60–75%. The development of the disease is caused by physiological changes in the body of a pregnant woman. With increasing gestational age there are changes in the anatomical arrangement of the abdominal organs. From the second trimester of pregnancy, the uterus extends beyond the pelvis and gradually occupies the entire abdominal cavity. The increase in the size of the uterus due to hypertrophy and hyperplasia of muscle fibers, amniotic fluid, fetal growth, leads to increased intraabdominal pressure, displacement of the small intestine and lumbar colon up, thereby creating conditions for compression of intestinal loops, nodules, development. The modern classification, clinic, diagnostics and methods of treatment of this surgical pathology are presented. The author presents his own clinical case of acute intestinal obstruction in a 51-year-old pregnant woman with the sixth desired pregnancy, which occurred as a result of assisted reproductive technologies and a large intergenetic interval. Both surgeon and obstetrician-gynecologist treat intestinal obstruction in pregnant women. Conservative treatment is carried out simultaneously with diagnostic procedures. No effect of conservative therapy for 2 hours is an indication for surgery. The main purpose of surgery is to eliminate the causes of intestinal obstruction and restore bowel function. The scope of surgery is determined in each case individually and depends on the type of AIO and the age of the disease. The chosen tactics of the preoperative period, the volume of surgery, anesthesia and adequate management of the postoperative period can cure acute surgical pathology, maintain the desired pregnancy, avoid the development of obstetric and surgical purulent-septic complications. The research was carried out in accordance with the principles of the Helsinki declaration. The informed consent of the patient was obtained for conducting the studies. No conflict of interest was declared by the authors. Key words: sharp bowel obstruction, pregnancy, extracorporal impregnation, large intergenic interval.

Scanning electron microscopy of freeze-fractured prescapular lymph node of caprine

1984 ◽  
Vol 42 ◽  
pp. 244-245
Author(s):  
O. Faroon ◽  
F. Al-Bagdadi ◽  
T. G. Snider ◽  
C. Titkemeyer
Keyword(s):  
Lymph Node ◽  
Lymph Nodes ◽  
Lymphatic System ◽  
Three Dimensional ◽  
Meat Products ◽  
The Body ◽  
Morphological Data ◽  
The World ◽  
Cellular Constituent ◽  
Scanning Electron

The lymphatic system is very important in the immunological activities of the body. Clinicians confirm the diagnosis of infectious diseases by palpating the involved cutaneous lymph node for changes in size, heat, and consistency. Clinical pathologists diagnose systemic diseases through biopsies of superficial lymph nodes. In many parts of the world the goat is considered as an important source of milk and meat products.The lymphatic system has been studied extensively. These studies lack precise information on the natural morphology of the lymph nodes and their vascular and cellular constituent. This is due to using improper technique for such studies. A few studies used the SEM, conducted by cutting the lymph node with a blade. The morphological data collected by this method are artificial and do not reflect the normal three dimensional surface of the examined area of the lymph node. SEM has been used to study the lymph vessels and lymph nodes of different animals. No information on the cutaneous lymph nodes of the goat has ever been collected using the scanning electron microscope.

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