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  • 1
    Electronic Resource
    Electronic Resource
    Complications Related to Permanent Pacemaker Therapy (1999)
    Oxford, UK : Blackwell Publishing Ltd
    Pacing and clinical electrophysiology 22 (1999), S. 0 
    Details
    ISSN: 1540-8159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: This study evaluates complications related to permanent endocardial pacing in the era of modern pacemaker therapy. There is only limited information available about the complications related to modern cardiac pacing. Most of the existing data are based on the 1970s and are no longer valid for current practice. The recent reports on pacemaker complications are focused on some specific complication or are restricted to early complications. Thus, there are no reports available providing a comprehensive view of complications related to modern cardiac pacing. Four hundred forty-six patients, who received permanent endocardial pacemakers between January 1990 and December 1995 at Kuopio University Hospital, were reviewed retrospectively using patient records. Attention was paid to the occurrence of any complication during the implantation or follow-up. An early complication was detected in 6.7%, and 4.9% of patients were treated invasively due to the early complication. Late complication developed in 7.2% and reoperation was required in 6.3% of the patients. Complications related to the implantation procedure occurred in 3.1%. Inadequate capture or sensing was observed in 7.4% of the patients. Pacemaker infection was detected in 1.8% and erosion in 0.9% of the patients. An AV block developed in 3.6% (1.6%/year) patients who received an AAI(R)-pacemaker due to sick sinus syndrome. There was no mortality attributable to pacemaker therapy. A great majority (68%) of the complications occurred within the first 3 months after the implantation. Complications associated to modern permanent endocardial pacemaker therapy are not in-frequent.Elevan percent of patients needed an invasive procedure due to an early or late complication.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1540-8159.1999.tb00534.x
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  • 2
    Electronic Resource
    Electronic Resource
    Similar effect of revascularization on technetium-99msestamibi and 15-(p-iodophenyl)pentadecanoic acid uptake in myocardial infarction patients (1999)
    Springer
    European journal of nuclear medicine 26 (1999), S. 1304-1309 
    Details
    ISSN: 1619-7089
    Keywords: Key words: Coronary bypass operation ; Perfusion ; Single-photon emission tomography ; Viability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. To study its usefulness as a tracer for assessment of the perfusion and viability of myocardium, 15-(p-iodophenyl)pentadecanoic acid (IPPA) was compared with technetium-99m sestamibi (MIBI). Dual-tracer single-photon emission tomography rest imaging was performed no more than 2 months before and 3 months after coronary artery bypass grafting in 28 patients with previous anterior (n=13) or inferior (n=15) infarction. The size of MIBI and IPPA defects decreased from 14%±12% and 13%±9% to 10%±11% and 9%±7%, respectively (P〈0.001 for both). The MIBI uptake increased in the infarct zones from 35%±11% to 43%±8% (P〈0.001), and in the peri-infarct zones from 50%±11% to 55%±10% (P〈0.05). The IPPA uptake increased in the infarct zones from 37%±11% to 44%±13% (P〈0.001), and in the peri-infarct zones from 51%±11% to 57%±12% (P〈0.05). In nine patients with improved regional echocardiographic wall motion score after bypass surgery, the pre-operative uptake values of both MIBI and IPPA in the infarct and peri-infarct zones were on average slightly but not significantly higher than in 19 patients with no observed improvement in regional wall motion score. In patients with improved regional wall motion, the MIBI scans and the IPPA scans showed (non-significant) decreases in defect size and increases in infarct and peri-infarct zone uptake after bypass surgery. Similar (in some cases significant) changes were observed in the patients without improvement in wall motion. Thus IPPA and MIBI provided similar information about perfusion and viability in pre- and postoperative evaluation of patients with clinically evident myocardial infarction and with normal global ejection fraction. Regardless of the tracer used, the resolution capability of the dual-tracer method with a rest imaging protocol was not sufficient to differentiate viable from non-viable infarction defects in unselected individual patients with a normal ejection fraction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002590050587
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    Paper (German National Licenses)
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