The results of intravascular ultrasound guided percutaneous coronary  intervention in patients with atherosclerotic coronary artery disease

Erdembileg Dandar; Oyunkhand Buyankhishig; Chingun Batmyagmar; Bum-Erdene Batbayar; Gereltuya Choijiljav; Ankhbayar Lundendorj; Munkhbat Batmunkh; Surenjav Chimed; Batmyagmar Khuyag

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The results of intravascular ultrasound guided percutaneous coronary intervention in patients with atherosclerotic coronary artery disease

VernacularTitle:Судас хатуурлын шалтгаант титэм судасны эмгэгийн үед хэт авиан хяналттай титэм судсан дотуурх эмчилгээг нэвтрүүлсэн үр дүн
Author: Erdembileg Dandar ¹ ; Oyunkhand Buyankhishig ² ; Chingun Batmyagmar ² ; Bum-Erdene Batbayar ³ ; Gereltuya Choijiljav ⁴ ; Ankhbayar Lundendorj ³ ; Munkhbat Batmunkh ⁵ ; Surenjav Chimed ⁶ ; Batmyagmar Khuyag ⁴
Author Information

1. Department of Cardiology, School of Medicine, MNUMS;Mongolian Interventional Cardiology Research Center
2. Department of Cardiology, Intermed Hospital
3. Department of Cardiology, First Central Hospital of Mongolia
4. Department of Cardiology, Intermed Hospital;Mongolian Interventional Cardiology Research Center
5. Graduate School, MNUMS
6. Mongolian Interventional Cardiology Research Center
Publication Type:Journal Article
Keywords: coronary artery disease; IVUS; PCI
From:Mongolian Medical Sciences 2024;210(4):35-44
CountryMongolia
Language:Mongolian
Abstract: Introduction :Intravascular ultrasound (IVUS) is an advanced technology used to guide percutaneous coronary intervention (PCI) in patients with stable coronary artery disease (CAD).
Goal:This study aims to describe the first successful implementation of IVUS in patients with stable CAD in Mongolia.
Materials and Methods :Patients with CAD who underwent either CAG or IVUS-guided PCI were prospectively selected. All patients provided informed consent, which was approved by the Ethical Committee of the Ministry of Health of Mongolia (March 17, 2023, №23/014). For patients who underwent CAG-guided PCI, stent deployment was performed under conventional CAG guidance, while stent implantation was performed under IVUS guidance in patients who underwent IVUS-guided PCI. Stent restenosis at 1-year follow-up was selected as the primary endpoint. The differences between the CAG-guided PCI and IVUS-guided PCI groups were compared using independent sample t-tests and chi-square tests. The association between treatment strategy (CAG-guided PCI vs. IVUS-guided PCI) and all cause restenosis (the study endpoint) was analyzed.
Results:A total of 51 patients with stable coronary artery disease (CAD) who underwent coronary angiography CAG guided PCI and intravascular ultrasound (IVUS)-guided PCI were included in the present study. The mean age was 63±9.44 years, with 88.2% male (n=45). In the IVUS-guided PCI group, the minimal lumen area (mm²) was 4.46±1.1, and after stenting, the minimal stent area was 8.59±0.5, showing a statistically significant difference (p<0.001). The stent restenosis rate at 1-year follow-up in the CAG-guided PCI group and the IVUS-guided PCI group were 16% and 3.84%, respectively. The restenosis rate in the IVUS-guided PCI group was lower than in the CAG-guided PCI group.
Conclusion:Complete expansion of the stent on the coronary artery wall is effective in improving long term outcomes of PCI, and IVUS guided coronary artery intervention has better long-term results compared to angiography-guided PCI group (96.1% vs 84%).
Full text:2025060517264193384MMS-2024-210(4)-35-44.pdf