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Biomedical subjects

J Orzelski

Publications and source records attributed to J Orzelski.

6 recordsLinked to original sources
PubMed1995

[Advantages and controversies regarding physiologic electrostimulation of the heart in sinus node disease].

UNLABELLED: Pacing mode in sinus node disease (SND) is one of controversies in cardiac pacing. We evaluated atrial pacing mode (AAI) in SND patients (pts). Between 1985 and 1994 AAI pacemaker was inserted in 179 pts due to symptomatic SND of varied etiology. RESULTS: The majority of pts (91.6%) were free from syncopal episodes after AAI implantation, in 15 pts (8.4%) syncopes were occasionally observed due to disturbances in pacemaker function, AVB III degrees, vaso-vagal syndrome, orthostatic hypotonia or atherosclerotic insufficiency of the cerebral circulation. In 49 (51%) out of 96 pts with brady-tachy syndrome (BTS), episodes of supraventricular tachyarrhythmia were not observed after AAI insertion and in the majority of the remaining pts the frequency of the episodes decreased significantly. Chronic atrial fibrillation developed in 5 (5.2%) pts. In some of the pts the symptoms related to chronic heart failure decreased or disappeared. A reoperation was performed in 44 (24%) pts due to electrode dislocation or fracture, atrio-ventricular conduction disturbances, an increase in pacing threshold or due to local infections. During the follow-up period 13 (7.3%) pts died of reasons unrelated to cardiac pacing therapy. CONCLUSION: In the majority of SND pts AAI pacing mode prevents from syncopal episodes caused by sinus node disfunction. It decreases the symptoms of heart failure in SND pts and stabilizes the sinus rhythm in the majority of BTS pts. Complications accompanying AAI do not post a major threat for the pts and can be easily resolved. They should by no means discourage from AAI implantation in SND.

Cardiac Pacing, Artificial↗
PubMed1989

[Our experience using continuous atrial stimulation in sick sinus syndrome].

Temporary atrial pacing (AAI) was applied in 31 patients with sick sinus syndrome (S.S.S.), including 20 with tachycardia-bradycardia syndrome (t.b.s.). In all patients before pacemaker implantation atrioventricular conduction was estimated using rapid left atrial, transoseophegeal stimulation assuming Wenckebach's point over 120 imp./min to be a physiological one. In all cases, but one ventricular electrodes were implanted and connected with multiprogrammable pacemakers (MP). Follow-up time ranged from 3 to 38 months (mean 18,4). Electrode dislodgment was not observed. In 9 persons sensing disorders were observed but thanks to programming the pacemaker sensitivity they could be resolved almost in all of them. Second degree Mobitz type I a-v block occurred in 3 patients during a long-term follow-up. In one of them changing the pacing mode to VVI was necessary. In persons with tachycardia-bradycardia syndrome cardiac pacing together with pharmacologic therapy allowed to almost eliminate tachycardia attacks. Authors positively estimated AAI pacing mode.

Electrodes, Implanted↗
PubMed1989

[Obstructive left colonic cancer. Retrospective analysis of the therapeutic attitude in a series of 40 recent cases].

In a series of 40 cancers involving the descending and sigmoid colon and producing true acute obstruction, the following were performed: 16 colostomies of first intention (including 11 palliative); 14 resections with colostomy (Hartmann type); 9 resection-anastomoses (including 3 protected); 1 attempt at laser treatment for non consent to surgery. Only 22 patients were theoretically suitable for anastomosis (18 contraindications due to invasive cancer or peritonitis); this was in fact carried out in 9 cases. Thus, if single stage surgery represents the ideal, it cannot be systematically applied; on the other hand, tumor resection can often be performed. It would seem that the use of per-operative colonic lavage can increase the percentage of single stage surgery, though there will always be a place for Hartmann or Bouilly-Volkmann type procedures, future reestablishment of continuity being facilitated by the use of surgical staples (EEA type).

Acute Disease↗