Kardiol Pol
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Clinical studies in humans have shown the site of atrial stimulation to influence atrioventricular (AV) conduction times and refractory periods, the demonstration of dual AV nodal (AVN) pathways, and induction of AVN reentry. These studies often found conflicting results. Moreover, among enrolled patients a minority of them were found to have AVN reentrant tachycardia (AVNRT). ⋯ Rightward and leftward AVN extensions are regular features of the AV node. Their different electrophysiological properties lead to variation in the demonstration of discontinuous AVN conduction and AVNRT during right and left atrial pacing. Despite the observation that the left AVN extensions could compose the entry point to the reentrant circuit, there is no evidence that they constitute the critical component of sustained typical AVNRT.
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The aetiology of sudden cardiac arrest in infants is different from that in adults, with respiratory failure, sudden infant death syndrome, and drowning being the primary causes in the former. According to the European Resuscitation Council (ERC) and American Heart Association (AHA) recommendations, the quality of chest compressions (CC) is a key element affecting the effectiveness of cardiopulmonary resuscitation (CPR). The current ERC and AHA guidelines recommend the 'two-finger technique' (TFT) or 'two-thumb encircling hands technique' (TTHT) for external CCs during infant CPR. ⋯ Our novel infant CC method provides the highest percentage of CCs with the frequency recommended by the ERC guidelines as compared with standard techniques. It also allows optimal CC depth.
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Multicenter Study Observational Study
Hospitalisation length and prognosis in heart failure patients.
Heart failure (HF) is a chronic disease with poor prognosis, being the final stage of many cardiovascular conditions and often requiring hospitalisation. ⋯ Patients with HF hospitalised for 22 or more days, in comparison to patients hospitalised for less than eight days, had double the risk of death during FU. We believe that prolonged hospitalisation might be regarded as a marker of poor prognosis in patients with acute HF.
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Multicenter Study Observational Study
Current patterns of antithrombotic and revascularisation therapy in patients hospitalised for acute coronary syndromes. Data from the Polish subset of the EPICOR study.
Cardiovascular disease is the leading cause of mortality and morbidity in developed countries, including Poland. Antithrom-botic drugs play a crucial role in the management of acute coronary syndromes (ACS). Recent clinical trials have demonstrated the efficacy and safety profiles of new antiplatelet and anticoagulant agents, which may be used as add-on therapy or replacements for older drugs. The long-t E: rm follow-u P: of antithrombotic management patterns I: n acute COR: onary syndrome patients (EPICOR) is a prospective international observational study (NCT01171404) designed to describe the use of antithrombotic management strategies for the treatment of ACS during the acute phase and over a follow-up period of up to two years from the index event. A total of 608 patients from 26 hospitals in Poland were enrolled into the registry between September 2010 and March 2011. ⋯ Among patients with ACS enrolled to the EPICOR study in Poland, antiplatelet therapy was started in the pre-hospital phase in approximately one-third of the STEMI patients and in one out of ten of the NSTEMI/UA patients. The initial antiplatelet therapy was mostly based on ASA + clopidogrel and was followed by a combination of ASA + clopidogrel + GPIIb/IIIa inhibitor. Other drugs or combinations, as well as novel antiplatelet drugs, were only used exceptionally. Almost 10% of NSTEMI/UA patients did not receive dual antiplatelet therapy at discharge. PCI plays a dominating role in the first-line treatment for the patients enrolled to this registry in Poland.
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Case Reports
Transapical off-pump mitral valve repair. First experience with the NeoChord system in Poland (report of two cases).
Artificial chord implantation to repair a flail or prolapsing mitral valve leaflet requires open heart surgery and cardiopulmonary bypass. ⋯ The NeoChord DS1000 system allows both implantation and lenght adjustment of artificial chordae under 2D and 3D TEE guidance on a beating heart. Our initial experience in 2 patients with posterior mitral leaflet prolapse indicates that the procedure is feasible and safe.