Search for: [Abstract = "2. Operational protocols from the surgery book\;3. ECG records during hospitalization and the long\-termfollow\-up\;4. Descriptions of X\-ray pictures taken duringhospitalization\;5. Patient medical information letters\;6. Archival medical information letters\;7. Outpatient medical information letters from thefollow\-up of patients with pacemakers.The following data was analyzed in patients assigned to acertain group\: gender, age, length of hospitalization, type ofpacemaker, type of electrode, place of pacing, indicationsfor permanent pacing, co\-existing diseases, periproceduralcomplications, early complications, late complications,technique of electrode implantation and the type of electrodefixation.A 24\-hour period after pacemaker implantation wasthoroughly controlled \(patient’s condition, ECG, electricalparameters of stimulation\). The following pacemakercontrol parameters were analyzed during the follow\-up\: thestimulation threshold of atrial or ventricular electrode,sensing in the atrial or ventricular channel, impedance of anatrial or ventricular electrode, the percentage of atrial orventricular stimulation, battery life \(in months\) and thecompliance with the follow\-up schedule. Quantitative traitssuch as age, duration of hospitalization and patient controlparameters were described using arithmetic mean \( x \),standard deviation \(s\), median \(Me\), minimum \(Min\) andmaximum \(Max\). Differences between hospitals or patientswith and without complications in terms of the analyzedquantitative traits were verified using the Student's t\-test orMann\-Whitney test. Qualitative characteristics were verifiedusing the chi\-square test or Fisher's exact test. The impact ofage on the length of hospitalization was assessed using theSpearman coefficient \(rs\). Multivariate risk factors analysisfocused on the complications that appear up to three monthsafter surgery. For this purpose, logistic regression withstepwise characteristics elimination was used.Complications were adopted as the dependent Y variabledichotomy type. Calculations were done using the statisticalpackage STATISTICA. A database was created usingMicrosoft Office Excel. Statistical hypotheses were verifiedat a significance level =0.05.RESULTSPatients who underwent implantation of a single or dual"]

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