[The prognosis and prevention of syncopal states and sudden death in patients with a complete atrioventricular block in disorders of permanent cardiac electrostimulation]. / Prognozirovanie i profilaktika sinkopal'nykh sostoianii i vnezapnoi smerti u bol'nykh s polnoi atrioventrikuliarnoi blokadoi pri narusheniiakh postoiannoi élektrikardiostimuliatsii.

A total of 105 patients with implantable pacemakers were examined. Whether the pacemaker disconnection test can be used to predict syncopes in failure of permanent cardiac pacing was studied. The spontaneous ventricular activity was evaluated in 62 patients with acquired complete atrioventricular block (CAVB) and in 43 patients with artificial CAVB. The patients with varying pacemaker dependence were grouped. It was ascertained that 7% of patients with artificial CAVB and 19% of those with acquired CAVB were dependent on pacemakers. In possible failure of stimulation or in reimplantation of a pacemaker on its disconnection, 93% of patients with artificial CAVB and 81% with acquired CAVB could develop their own cardiac rhythm. Lowering the frequency of pacing enabled the duration of asystole to be decreased. The usage of isadrin was demonstrated to enhance spontaneous ventricular activity.

[Equipment and possibilities of dynamic monitoring of arrhythmia during permanent electrocardiostimulation]. / Apparatura i vozmozhnosti dinamicheskogo monitoringa aritmii pri postoiannoi élektrokardiostimuliatsii.

The APKA cardiocomplex was developed, which diagnoses short intermittent arrhythmias in patients with and without cardiocomplexes. The cardiocomplex may operate in inpatient conditions of the cardiosurgical and cardiological units which are engaged in cardiac rhythms and in outpatient conditions of the outpatient monitoring and functional diagnosis rooms.

[Clinical experience with the first 100 operations to implant programmed electrocardiostimulators]. / Klinicheskii opyt pervykh 100 operatsii implantatsii programmiruemykh élektrokardiostimuliatorov.

The implantation of a home programmed device "ECS-500" was performed in 121 patients with different disturbances of the cardiac rhythm. Programmed ECSs were used in 103 patients with echocardiography and integral rheography. Seventy six patients were observed in terms from 2 months to 1.5 year. Optimum frequencies of electrostimulation (ES) were determined for different groups of patients. Lower frequencies of ES allowed to lessen manifestations of angina pectoris in patients with ischemic heart disease. Higher amplitude of the impulse prevented reoperations in 4 patients with "block of output" of electrodes. The experience allows "ECS-500" to be recommended for introduction into clinical practice.

[A case of a iatrogenic defect of the tricuspid valve caused by endocardial electrodes]. / Nabliudenie iatrogennogo poroka trekhstvorchatogo klapana, obuslovlennogo éndokardial'nymi élektrodami.

One case of a rare complication of the permanent heart electrostimulation is observed among many patients treated with such method for many years. A 77-year-old man having a permanent electrostimulation during 13 years because of a complete atrioventricular heart blockade, developed a defect of the tricuspid valve resulting from two endocardial electrodes. Narrowing of the right atrioventricular aperture and a severe dilatation of the right atrium worsened the circulation deficiency. More frequent use of various methods of the nonfunctioning endocardial electrode elimination is recommended. Transvenous destruction of the fibrous capsule at the end of endocardial electrodes is an efficient method developed by the authors for their elimination.

[Physiologic electrostimulation of the heart ventricles in disorders of atrioventricular conduction]. / Fiziologicheskaia elektrostimuliatsiia zheludochkov pri narusheniiakh atrioventrikuliarnogo provedeniia.

Thirty-two patients with disturbed atrioventricular conduction underwent operation for continuous P-wave electrostimulation (ES) with implantation of Soviet-made serial KC-320 apparatuses by the myocardial (28 patients) and endocardial (4 patients) methods. The patients were examined in postoperative periods of 3 to 15 months. Stable bio-controlled ES with a good clinical result was recorded in 29 patients, dislocation of the atrial endocardial electrode--in one patient; the development of frequent paroxysms of atrial flutter-fibrillation made it necessary to change the ES regimen. The authors' experience allows KC-320 to be recommended in wide clinical practice.

[Experience in using transesophageal electrocardiostimulation in emergency heart rhythm disorders]. / Opyt primeneniia chrespishchevodnoi élektrokardiostimuliatsii v urgentnoi kardioritmologii.

The paper is concerned with the results and analysis of transesophageal electrocardiostimulation in 383 patients before and in hospital over 6 years for urgent therapy of brady- and tachyarrhythmias. The method was assessed using a simple, recoverable and effective first aid element in combined resuscitation measures, in therapy of paroxysms of supraventricular tachycardia, in patients with the sinoatrial node weakness syndrome during cardioversion and narcosis, in primary and repeated pacemaker implantations, in acute myocardial infarctions complicated by bradyarrhythmias. Transesophageal electrocardiostimulation in urgent therapy of bradyarrhythmias, the sinoatrial node weakness syndrome, disorders of permanent electrocardiostimulation with fits of Morgagni-Adams-Stokes syndrome is an uncomplicated method of choice and a stage before temporary endocardial and permanent electrocardiostimulation.