Versatility of Inoue balloon catheter

Area of Science:

• Cardiology
• Interventional Cardiology
• Medical Devices

Background:

• The Inoue balloon catheter is a widely adopted device for balloon mitral valvuloplasty (BMV).
• Its established benefits include self-positioning, size adjustability, and rapid inflation-deflation.
• This study explores its application beyond mitral valve interventions.

Purpose of the Study:

• To evaluate the efficacy and safety of the Inoue balloon catheter in non-mitral interventions.
• To assess its utility in treating diverse stenotic cardiovascular conditions.

Main Methods:

• Retrospective analysis of 17 patients with valvular pulmonic stenosis.
• Evaluation of 4 patients with inferior vena-cava obstruction.
• Application in 4 cases of recurrent pericardial collection, 1 case of coarctation of the aorta, 1 case of discrete subaortic membrane, and 1 case of critical valvular aortic stenosis.

Main Results:

• Significant reduction in peak systolic gradient from 125+/-28 to 32+/-16 mmHg in pulmonic stenosis patients (P<0.005).
• Symptomatic improvement in patients with inferior vena-cava obstruction.
• Successful alleviation of tamponade symptoms via percutaneous pericardial window creation.
• Immediate hemodynamic improvement in coarctation of the aorta, discrete subaortic membrane, and aortic stenosis cases.

Conclusions:

• The Inoue balloon catheter is effective for managing various non-mitral stenotic lesions.
• It offers a safe and versatile alternative for complex cardiovascular interventions.
• The device demonstrates broad applicability in interventional cardiology beyond its primary indication.