Michał Waśniewski

Publications (11)6.46 Total impact

• Article: [Unusual picture of pacemaker leads in patient after Senning procedure].

  Michał Waśniewski, Aleksander Araszkiewicz, Zofia Oko Sarnowska, Olga Trojnarska, Przemysław Mitkowski, Krzysztof Błaszyk, Stefan Grajek
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  ABSTRACT: We present a case of a 21-year-old man after Senning operation admitted to our hospital for transvenous implantation of a dual chamber pacemaker. The presence of persistent left superior vena cava enabled us to implant the desired dual chamber pacemaker. It is an extremely unusual situation when two pacemaker leads utilise two different routes to the heart: superior caval vein - atrial baffle - ventricle and persistent left superior caval vein - atrium.
  Kardiologia polska 01/2013; 71(1):102-3. · 0.51 Impact Factor
• Article: [Mild type of the Ebstein anomaly].

  Ireneusz Jedliński, Maria Jamrozek-Jedlińska, Paweł Bugajski, Michał Waśniewski, Kajetan Poprawski, Marek Słomczyński
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  ABSTRACT: Ebstein anomaly is a congenital malformation of the heart that is characterised by apical displacement of the septal and posterior tricuspid valve leaflets, leading to atrialisation of the right ventricle with a variable degree of malformation and displacement of the anterior leaflet. We present a case of a mild type Ebstein anomaly leading to moderate tricuspid valve regurgitation and some degree of right ventricular dysfunction.
  Kardiologia polska 01/2011; 69(1):48-50. · 0.51 Impact Factor
• Article: [Fascicular tachycardia - a rare case of ventricular tachycardia].

  Michał Waśniewski, Romuald Ochotny, Aneta Klotzka, Ewa Straburzyńska-Migaj, Stefan Grajek
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  ABSTRACT: It is described a case of an 18 years old woman admitted to the hospital with tachycardia 160/min. Drugs routinely used for supraventricular arrhythmias and cardioversion were ineffective. Patient were transferred to the reference center. Based on careful ECG examination diagnosis was established as fascicular tachycardia. Verapamil given intravenously stopped tachycardia immediately. Location of reentry circuit within left ventricle and differential diagnosis of fascicular tachycardia as well as ECG features are described in discussion.
  Kardiologia polska 05/2010; 68(5):588-90; discussion 591. · 0.51 Impact Factor
• Article: [Contribution of atrioventricular node inputs on orthodromic atrioventricular reentrant tachycardia cycle length].

  Krzysztof Błaszyk, Michał Waśniewski, Stefan Grajek
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  ABSTRACT: We describe a 21-year-old woman with a previous history of orthodromic AVRT and overt preexcitation. Electrophysiological study revealed the presence of a left-sided accessory pathway. During an orthodromic AVRT a spontaneous sudden change in heart rate (141 to 202 beats/min) without any change of the QRS morphology was noted due to a decrease in AH interval (from AH=227 ms to AH=100 ms). We explained this phenomenon as the sudden change of the inferior inputs to superior in the AV node.
  Kardiologia polska 02/2010; 68(2):232-6. · 0.51 Impact Factor
• Article: [Myocarditis--the first symptom of adult Still's disease].

  Anna Miczke, Michał Waśniewski, Ewa Straburzyńska-Migaj, Piotr Leszczyński, Romuald Ochotny, Stefan Grajek
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  ABSTRACT: Myocardial involvement during the course of adult Still's disease is very rare. We present a case of a 34-year-old man admitted with fever, tachycardia, weakness and chest discomfort. The electrocardiogram showed non-specific diffuse ST-T changes, troponin level was slightly elevated and echocardiography did not reveal any abnormalities. After ruling out other relevant diseases, the adult Still's disease was diagnosed.
  Kardiologia polska 08/2009; 67(8):884-6. · 0.51 Impact Factor
• Article: The 64-slice computed tomography of a coronary artery fistula communicating with the right ventricle.

  Michał Waśniewski, Dariusz Angerer, Romuald Ochotny, Olga Trojnarska, Andrzej Szyszka, Stefan Grajek
  Cardiology journal 02/2008; 15(4):384-5. · 1.31 Impact Factor
• Article: ["Benign" atrial arrhythmias exacerbated by physical activity as a cause of cardiomyopathy].

  Krzysztof Błaszyk, Artur Baszko, Michał Waśniewski, Paweł Derejko, Małgorzata Popiel, Stefan Grajek
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  ABSTRACT: We describe a 39-year-old man with premature atrial contractions at rest, in whom tachycardia was exacerbated by exercise into long-lasting atrial tachycardia of 150 beats/min with changeable grade of AV conduction. The feeling of irregular heart beating was the only symptom of arrhythmia and was well tolerated for many years. However, the signs of tachycardia-mediated cardiomyopathy with heart failure developed over several years. Successful RF ablation of focal atrial tachycardia using the CARTO system was performed. After 5 months of follow-up the patient is free from arrhythmia with a significant improvement of the HF.
  Kardiologia polska 12/2007; 65(11):1392-5. · 0.51 Impact Factor
• Article: [Atrioventricular nodal tachycardia with left-sided slow pathway treated with RF ablation].

  Artur Baszko, Waldemar Bobkowski, Krzysztof Błaszyk, Michał Waśniewski, Ireneusz Stachecki
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  ABSTRACT: We present a case of 10-year-old boy with AVNRT. The tachycardia had prolonged RP interval (160 ms) and HA time (135 ms). The application at the rim of the coronary sinus resulted in accelerated junctional rhythm and retrograde block followed by transiently prolonged atrioventricular conduction. The mapping of the mitral annulus transeptally presented no 'slow potentials'. The electrode was then inserted retrogradely through the aorta and slow potentials were recorded on the septal aspect of the left atrium. Two RF applications at this site were successful. The patient was followed for three years without recurrence of arrhythmia.
  Kardiologia polska 10/2007; 65(9):1126-30. · 0.51 Impact Factor
• Article: [Twiddler syndrome: a rare complication of ICD implantation].

  Michał Waśniewski, Przemysław Mitkowski, Krystian Stanek, Romuald Ochotny, Andrzej Cieśliński
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  ABSTRACT: Twiddler syndrome is a rare complication after pacemaker or ICD implantation. We present a case of a man who experienced 7 inappropriate ICD shocks because of this complication. Treatment included total system removal and new device implantation on the right side.
  Kardiologia polska 10/2007; 65(9):1094-6. · 0.51 Impact Factor
• Article: [Presyncope caused by non-sustained ventricular tachycardia. Significance of RF ablation].

  Krzysztof Błaszyk, Michał Waśniewski, Artur Baszko, Paweł Derejko, Andrzej Cieśliński
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  ABSTRACT: We describe a case of a 55-year-old man with episodes of presyncope caused by non-sustained ventricular tachycardia (ns-VT). Symptoms of significant weakness started when he was 30-year-old. In the last 2 years there was a substantial increase in frequency of presyncope from 2 per month to 8 per week. He does not have palpitations. Standard ECG, echocardiography and coronary angiography were normal. During an exercise test ns-VT 220/min (5 s, 20 x QRS) with LBBB morphology was documented. Successful RF ablation of ns-VT using the CARTO system was performed. During 4-month follow-up the patient remains free from ventricular arrhythmia.
  Kardiologia polska 05/2007; 65(4):455-8. · 0.51 Impact Factor
• Article: [Long-term effects of radiofrequency ablation of ventricular tachycardia originating from the aortic cusps].

  Artur Baszko, Krzysztof Błaszyk, Michał Waśniewski, Ewa Straburzyńska-Bugaj, Olga Trojnarska, Romuald Ochotny, Andrzej Cieśliński
  Kardiologia polska 04/2005; 62(3):289-93. · 0.51 Impact Factor