Author + information
- Azuolas Sirtautas1,
- Robertas Pranevicius2,
- Kasparas Briedis2,
- Norvydas Zapustas2,
- Ramunas Unikas2 and
- Zivile Valuckiene2
Bioabsorbable stents - bioabsorbable vascular scaffolds (BVS) are a relatively new technology, which has many upsides when comparing it to metallic stents. After doing its function (revascularization) it also repairs the wall of the artery and then absorbs. It basically overcomes all of the downsides, which come from using metallic stents. This study was done to evaluate results and complications of one year treatment and also the need of revascularization for patients that have been treated with BVS.
Data of patients, who have been treated with BVS stents is stored and analyzed using retrospective survey. There were 46 consecutive patients, who have suffered from ischemic heart disease in our survey. First of all, risk factors of our patients were collected (diabetes, hypertension, smoking). Coronary artery angiography and stenting with bioabsorbable stents were performed on all of these patients. Patients were observed while still in hospital, after six months, after one year and after two years after discharge from the hospital in case of complications - major adverse cardiac events (MACE - death, thrombosis, myocardial infarction, stroke). Also, we evaluated length of hospitalization and the need for repeated revascularization.
Age mean of patients which participated in the study was 58 years of which 26 were males and 20 were females. More than half (73,9%) of participants had stable angina pectoris with one vessel disease (47.8%), two vessel disease (24%), three vessel disease (28.7%). To determine the complexity of coronary artery disease we used the Syntax score and 47.8% of study participants had a score of more than 10 points. Risk factors - such as arterial hypertension (95,6%) , diabetes (4,34%) , smoking (15,2%) , dyslipidemia (76%) were also evaluated. The study analyzed the most suitable technique aspects : 47.8% of patients had a long 28 x 3.5 mm stent. During the one year period there were no complications whatsoever. During the second year - there were 3 myocardial infarctions and 1 revascularization. The mean of hospitalization time was 6.25 ± 2.58 days.
Patients of this study have had none of the MACE complications during one year period. Also there was no need for repeated revascularization for patients who had been treated using bioabsorbable stents during that year. During the second year, 4 patients had complications. This study suggests that this technology might be more effective than the traditional metallic stents, but longer follow up is needed.