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Kumar P, Sinha SK, Sofi NU, Razi M, Sharma AK, Pandey U, Shukla P, Thakur R, Varma CM, Krishna V. Balloon Deflection Technique to Facilitate Stent Delivery in Impassable Situations During Percutaneous Coronary Intervention. Cardiol Res 2021; 12:201-207. [PMID: 34046115 PMCID: PMC8139751 DOI: 10.14740/cr1036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 06/15/2020] [Indexed: 11/24/2022] Open
Abstract
Background Long and multiple lesions especially in the background of tortuous coronary artery often require multiple stents. The entry and passage of another stent through an already deployed stent becomes challenging because of poorly expanded stent struts, calcified tissue, underlying tortuosity, highly angulated takeoff of the vessel, and lack of coaxiality. It can be facilitated by balloon deflection technique (BDT) where balloon at proximal edge of main vessel stent over a buddy wire helps to deflect second stent either distally or into side branch by blocking potential dead. Methods The present retrospective, single-center study included 16,189 consecutive patients who underwent percutaneous coronary intervention (PCI) either through transfemoral or transradial route from January 2014 to August December 2019 at LPS Institute of Cardiology, GSVM Medical College, Kanpur, UP, India where BDT was used in situation of impassable stent among 37 patients. Results The mean age of patients was 75.4 ± 6.5 years. The commonest clinical presentation was chronic coronary syndrome (n = 19; 51.3%) followed by non-ST-segment elevation myocardial infarction (NSTEMI) (n = 9; 24.4%), ST-segment elevation myocardial infarction (STEMI) (n = 5; 13.5%), and unstable angina (UA) (n = 10; 10.8%). Type B2 lesion was commonest (45.9%) followed by type C (35.2%) and B1 (18.9%). The commonest indication for BDT was angulation (n = 10; 27.1%) followed by tortuosity (n = 9; 24.3%), chronic total occlusion (n = 8; 17.9%), calcification (n = 7; 18.9%), and distally located lesion (n = 3; 8.1%). The left circumflex artery (LCX) was the most commonly intervened artery (n = 16; 43.2%) followed by left anterior descending (n = 11; 29.7%) and right coronary artery (n = 10; 27.1%). Mean diameter and mean length of stents were 3.3 ± 0.9 mm and 18 ± 6 mm respectively. The mean diameter and mean length of deflection balloon were 3 ± 0.5 mm and 20 ± 5 mm respectively. Lesions were modified using aggressive pre-dilatation in all cases while 19.4% of lesion required cutting balloon for additional modification. Additional wire as buddy wire was used in 54% of cases while wire in main vessel acted as buddy wire in dedicated bifurcation stenting. Stent implantation was successful in 36 cases with success rate of 97.3%; while in one case, stent could not be delivered using BDT. Stent was finally delivered using GuideZilla mother-in-child catheter. Overall failure rate was 2.7% which was contributed by extreme tortuosity, angulation, and severe calcification. Conclusions In selected cases of impassable lesions; the deflection balloon technique may provide a simple, convenient, and inexpensive solution without further need of additional hardwares except a buddy wire and a balloon.
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Affiliation(s)
- Prakash Kumar
- Department of Cardiology, Rajendra Institute of Medical Science, Ranchi, Jharkhand, India
| | - Santosh Kumar Sinha
- Department of Cardiology, LPS Institute of Cardiology, G.S.V.M. Medical College, Kanpur, Uttar Pradesh 208002, India
| | - Najeeb Ullah Sofi
- Department of Cardiology, LPS Institute of Cardiology, G.S.V.M. Medical College, Kanpur, Uttar Pradesh 208002, India
| | - Mahmodullah Razi
- Department of Cardiology, LPS Institute of Cardiology, G.S.V.M. Medical College, Kanpur, Uttar Pradesh 208002, India
| | - Awdesh Kumar Sharma
- Department of Cardiology, LPS Institute of Cardiology, G.S.V.M. Medical College, Kanpur, Uttar Pradesh 208002, India
| | - Umeshwar Pandey
- Department of Cardiology, LPS Institute of Cardiology, G.S.V.M. Medical College, Kanpur, Uttar Pradesh 208002, India
| | - Praveen Shukla
- Department of Cardiology, LPS Institute of Cardiology, G.S.V.M. Medical College, Kanpur, Uttar Pradesh 208002, India
| | - Ramesh Thakur
- Department of Cardiology, LPS Institute of Cardiology, G.S.V.M. Medical College, Kanpur, Uttar Pradesh 208002, India
| | - Chandra Mohan Varma
- Department of Cardiology, LPS Institute of Cardiology, G.S.V.M. Medical College, Kanpur, Uttar Pradesh 208002, India
| | - Vinay Krishna
- Department of Cardiology, LPS Institute of Cardiology, G.S.V.M. Medical College, Kanpur, Uttar Pradesh 208002, India
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