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Related Experiment Videos

Transseptal catheterization without needle puncture.

K M Krishnamoorthy1, P K Dash

  • 1Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, India. saikm@sctimst.ker.nic.in

Scandinavian Cardiovascular Journal : SCJ
|August 23, 2001
PubMed
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Probing the fossa ovalis for transseptal puncture during balloon mitral valvuloplasty reduces procedure time and fluoroscopy exposure. This safe technique successfully achieves left atrial entry in 90% of patients, avoiding needle use.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Medical Devices

Background:

  • Balloon mitral valvuloplasty is a key procedure for treating mitral stenosis.
  • Transseptal puncture is a critical step requiring precise access to the left atrium.
  • Current methods for transseptal puncture can be time-consuming and involve fluoroscopic guidance.

Purpose of the Study:

  • To evaluate the efficacy of probing the fossa ovalis for transseptal puncture during balloon mitral valvuloplasty.
  • To determine if this technique reduces procedure time and fluoroscopy exposure.

Main Methods:

  • A comparative study involving two groups: Group I (25 patients) underwent fossa ovalis probing for left atrial entry, while Group II (30 patients) used standard needle puncture.
  • Puncture time, fluoroscopy time, and oxymetry were recorded.

Related Experiment Videos

  • A validation cohort of 60 patients subsequently underwent the probing technique.

    • Main Results:

    • Probing the fossa ovalis significantly reduced puncture time (84.7 ± 27.5 s vs. 116.1 ± 37.9 s, p < 0.02) and fluoroscopy time (51.2 ± 19.6 s vs. 73.6 ± 22.3 s, p < 0.03) compared to standard needle puncture.
    • The probing technique achieved successful left atrial entry in 90% (54/60) of patients during validation.
    • No atrial level shunts were observed.

    Conclusions:

    • Probing the fossa ovalis is a safe and effective method for achieving transseptal puncture in balloon mitral valvuloplasty.
    • This technique offers significant reductions in procedure and fluoroscopy times.
    • It provides a viable alternative to traditional needle puncture, enhancing procedural efficiency.