Chordal replacement for both minimally invasive and conventional mitral valve surgery using premeasured Gore-Tex loops

Oppell, Ulrich O. von; Mohr, Friedrich W.

doi:10.1016/s0003-4975(00)02047-6

Cited by 236 publications

(165 citation statements)

References 5 publications

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“…PML prolapse is a high-frequency lesion seen in mitral valve insufficiency, and although the resection and suture technique is a standard technique for posterior lesions with long-term durability, this surgical approach might induce anatomical and physiological defects of the mitral valve, resulting in mitral valve insufficiency or stenosis. 5 The loop technique was therefore introduced in 2000 to preserve the mitral valve apparatus, 13 and many surgeons have since used this technique with good long-term results. 6, 14 Advantages of the loop technique include ease of performance in minimally invasive cardiac size of mitral annuloplasty ring was chosen based on the area of the anterior leaflet.…”

Section: Discussionmentioning

confidence: 99%

Preservation of Mobility of the Posterior Mitral Leaflet After Mitral Valve Repair With Neochordae Using Loop Technique

Kuwabara

Murata

Okamoto

et al. 2016

Circ J

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Section: Discussionmentioning

confidence: 99%

Preservation of Mobility of the Posterior Mitral Leaflet After Mitral Valve Repair With Neochordae Using Loop Technique

Kuwabara

Murata

Okamoto

et al. 2016

Circ J

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“…4) Precisely measuring the chordae tendineae is rather difficult since the geometry of the left ventricle at the time of measurement differs from its geometry during the hydrostatic test or during a heart contraction. 5) If the hydrostatic test indicates that all of the artificial chordae tendineae should be changed, changing them with the loop technique is time consuming.…”

Section: Discussionmentioning

confidence: 99%

“…4) We, therefore, developed a technique that allows a surgeon to change the length of the chordae after the hydrostatic test. The technique consists of three basic components those are the "anchor," the "loop," and the "loop tip suture."…”

Section: Introductionmentioning

confidence: 99%

The “Loop with Anchor” Technique to Repair Mitral Valve Prolapse

Isoda¹,

Osako²,

Kimura³

et al. 2012

ATCS

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The current surgical technique of using an artificial chord (composed of expanded polytetrafluoroethylene [ePTFE] sutures) to repair mitral prolapse is technically difficult to perform. Slippery knot tying and the difficulty of changing the chordae length after the hydrostatic test are frustrating problems. The loop technique solves the problem of slippery knot tying but not the problem of changing the chordae length. Our "loop with anchor" technique consists of the following elements: construction of an anchor at the papillary muscle; determining the loop length; tying the loop to the anchor; suturing the loop to the mitral valve; the hydrostatic test; and re-suturing or changing the loop, if needed. Adjustments can be made for the entire procedure or for a portion of the procedure.

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“…Both ePTFE suture needles are passed back through the pledget twice and ligated, so that the knot does not add further length to the loop when anchored to the papillary muscle. 3 Four loops are made on one loop unit. In the U-Clip experiment, the loop unit was anchored to the papillary muscle by single-armed S105 U-clips.…”

Section: Methodsmentioning

confidence: 99%

Dynamic evaluation of the loop technique using the U-Clip

Moriyama

Tomita

Watanabe

2013

Asian Cardiovasc Thorac Ann

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Background: We set out to evaluate mitral valve repair with the loop technique under dynamic conditions, using a U-Clip to anchor the loop unit to a papillary muscle. Methods: Mitral valve prolapse was artificially developed by resecting 4 chordae tendineae of a resected porcine heart. The loop unit was anchored to the papillary muscle using U-Clips. Each chordal loop was fixed on the prolapsed leaflet. A roller pump perfused the left ventricle. The left ventricular pressure was maintained at 250 mm Hg. Morphological assessment of the loop reconstruction was performed using an endoscope. Results: 10 independent chordal reconstructions were performed. In all cases, the loop unit remained anchored against pressures exceeding 250 mm Hg. Upon increasing the water filling volume, rupture of a chorda tendinea occurred in 7 cases, rupture of the papillary muscle occurred in 2 cases, and left ventricle rupture occurred in 1 case. In all rupture cases, the loop unit remained anchored to the papillary muscle. Conclusion: This dynamic evaluation of the loop technique using U-Clips to anchor the loop unit to a papillary muscle showed that the loop technique using U-Clips is a safe method.

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Chordal replacement for both minimally invasive and conventional mitral valve surgery using premeasured Gore-Tex loops

Cited by 236 publications

References 5 publications

Preservation of Mobility of the Posterior Mitral Leaflet After Mitral Valve Repair With Neochordae Using Loop Technique

Preservation of Mobility of the Posterior Mitral Leaflet After Mitral Valve Repair With Neochordae Using Loop Technique

The “Loop with Anchor” Technique to Repair Mitral Valve Prolapse

Dynamic evaluation of the loop technique using the U-Clip

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