Catheter News and Research

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In medicine, a catheter is a tube that can be inserted into a body cavity, duct, or vessel. Catheters . In most uses, a catheter is a thin, flexible tube ("soft" catheter), though in some uses, it is a larger, solid ("hard") catheter. A catheter left inside the body, either temporarily or permanently, may be referred to as an indwelling catheter. A permanently inserted catheter may be referred to as a permcath.

New guidelines and follow-up standards improve pulmonary embolism outcomes

Pulmonary embolism, or PE, is a serious and sometimes life-threatening condition that occurs when a blood clot travels to the lungs and blocks blood flow.

8 Apr 2026

Study explores how a powerful antiseptic affects bacteria in hospital environments

Just because a topical antiseptic is swabbed on the skin doesn't mean it stays on the skin.

2 Apr 2026

Digital twin hearts improve outcomes in arrhythmia ablation procedures

Working with "digital twins" of patients' hearts, doctors improved cardiac ablation outcomes for patients with life-threatening arrythmias.

1 Apr 2026

Dual imaging reveals hidden causes of heart attacks without blockages

When Ashley Perlow felt a sharp pain shoot across her chest and into both wrists, she didn't think it could be a heart attack. She was 36, a new mom, and otherwise healthy.

30 Mar 2026

Study links atrial fibrillation to poorer brain clearance and cognitive decline

Researchers found that people with atrial fibrillation had lower MRI-based glymphatic activity and poorer cognitive performance than healthy controls, with the greatest impairment seen in non-paroxysmal AF. In patients who underwent catheter ablation, glymphatic activity improved after sinus rhythm was restored, suggesting a possible link between heart rhythm, brain waste clearance, and cognition.

30 Mar 2026

Deferring PCI before TAVR shows comparable outcomes in elderly patients

Older patients with coronary artery disease scheduled for transcatheter aortic valve replacement (TAVR) had comparable outcomes regardless of whether they underwent percutaneous coronary intervention (PCI) before TAVR, according to findings from the PRO-TAVI study presented at the American College of Cardiology's Annual Scientific Session (ACC.26).

29 Mar 2026

Transcatheter valve-in-valve procedure improves short-term outcomes in high-risk patients

In patients with a poorly functioning bioprosthetic mitral valve in the heart, a minimally invasive procedure to insert a new valve was associated with a lower rate of death or disabling stroke within one year, compared with patients who underwent standard repeat mitral valve replacement surgery, according to a study presented at the American College of Cardiology's Annual Scientific Session (ACC.26).

29 Mar 2026

Minimally invasive valve repair lowers hospitalizations in heart failure patients

At two years of follow-up, patients with a poorly functioning tricuspid valve in the heart who received optimal medical therapy plus a minimally invasive procedure using a clip to repair the valve were significantly less likely to die, have a heart attack or stroke and 40% less likely to be hospitalized for heart failure compared with similar patients who were randomly assigned to optimal medical therapy alone.

29 Mar 2026

Novel vFFR method performs similar to invasive coronary assessment

A novel, minimally invasive method of determining whether fatty deposits in a coronary artery are restricting blood flow to a patient's heart performed similarly to the standard, more-invasive procedure in a large multi-country European randomized trial presented at the American College of Cardiology's Annual Scientific Session (ACC.26).

29 Mar 2026

AI-based tool matches standard method for coronary blood flow assessment

A novel, minimally invasive computer software-based method that uses artificial intelligence to determine whether plaques in a coronary artery are restricting blood flow to the patient's heart performed similarly to the standard, more invasive wire-based procedure, according to a large international randomized trial presented at the American College of Cardiology's Annual Scientific Session (ACC.26).

29 Mar 2026

Microaxial flow pump fails to reduce heart damage in STEMI trial

Using a microaxial flow pump prior to and during cardiac stenting procedures for patients with severe heart attacks who don't have cardiogenic shock does not significantly reduce heart damage.

28 Mar 2026

Catheter-based approach improves prognosis in pulmonary embolism patients

Patients who had low doses of clot-buster drugs delivered directly to the site of a pulmonary embolism (PE) via a catheter using ultrasound to enhance their effect had significantly better outcomes than those who received standard systemic anticoagulants, according to a study presented at the American College of Cardiology's Annual Scientific Session (ACC.26).

28 Mar 2026

Temporary heart pump before PCI shows no significant benefit

The first randomized trial to test whether adding a small, temporary pump to allow the heart to rest and intentionally delaying percutaneous coronary intervention (PCI), also known as coronary angioplasty, for 30 minutes to reduce heart damage compared with standard immediate PCI in patients with heart attacks at risk for a large amount of heart damage found no significant difference between the two groups, the study's primary endpoint. The research was presented at the American College of Cardiology's Annual Scientific Session (ACC.26).

28 Mar 2026

Left atrial appendage closure matches anticoagulants in AFib patients

For patients with non-valvular atrial fibrillation (AFib) who had no contraindications to taking oral anticoagulants, the use of a device to close off the left atrial appendage in the heart—a small pouch where blood can pool and form dangerous clots—was comparable to standard medication therapy in reducing the combined rate of all-cause stroke, cardiovascular death and systemic embolism at three years.

28 Mar 2026