Mother-child technique using a novel 4 Fr inner catheter

Ashikaga, Takashi; Sakurai, Kazuo; Satoh, Yasuhiro; Inagaki, Hiroshi; Yoshikawa, Shunji; Kurihara, Ken; Hirao, Kazuyuki; Isobe, Mitsuaki

doi:10.4244/eijy14m07_19

Cited by 4 publications

(2 citation statements)

References 14 publications

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“…The relative increase in the backup support was lower in the 4-in-6 system than 5-in-6 system, which was inversely associated with the size of mother guiding catheter [ 8 ]. Many studies demonstrated the efficacy of a 4 Fr inner catheter for stent delivery [ 6 , 7 , 9 ]. Although the backup support of 4F child catheter was significantly lower, the trackability of the 4F GEC was superior to that of 5F GEC.…”

Section: Discussionmentioning

confidence: 99%

A novel tapered guide extension catheter facilitated successful completion of complex percutaneous coronary intervention

Liao

et al. 2023

Eur J Med Res

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Background Guide extension catheters (GEC) are widely applied to cope with insufficient backup support in complex percutaneous coronary intervention (PCI). In the study, we aim to evaluate the feasibility and safety with a novel 5-4F tapered GEC used in complex lesion. Methods The single-center retrospective study enrolled a total of 615 patients, in whom the 5F or 5-4F Expressman GEC was used to facilitate PCI procedure. Demographic and procedural data were collected. Results 5F GEC was used in 295 patients and 5-4F tapered GEC in 320 patients. The average age was 63.6 ± 11.0 years and 81.6% of the patients were male. Severe calcification and chronic total occlusion (CTO) were the commonest indication for the GEC use. The 5-4F tapered GEC was frequently used in active greeting technique (AGT) during CTO intervention procedure than 5F GEC (6.1% vs. 13.1%, p < 0.001). The average depth of intubation was 41.5 ± 19.6 mm for the 5-4F tapered GEC and 24.4 ± 15.1 mm for 5F GEC (p < 0.001). The rate of successful device delivery with 5-4F GEC was higher than 5F GEC (95.6% vs. 98.4%, p = 0.037). Pressure damping with 5F GEC occurred frequently than 5-4F GEC (7.4% vs. 2.5%, p < 0.05). Similarly, the incidence of intraoperative hypotension was higher in 5F GEC than 5-4F GEC (4.7% vs.1.9%, p < 0.05). Conclusions The novel 5-4F tapered GEC was superior to the 5F GEC in facilitating successful completion of PCI in the majority of patients with complex lesions via transradial approach.

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Section: Discussionmentioning

confidence: 99%

A novel tapered guide extension catheter facilitated successful completion of complex percutaneous coronary intervention

Liao

et al. 2023

Eur J Med Res

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“…3 4 The telescoping approach with a "mother and child" technique might be useful but sometimes twisting of the guidewire could present. 5,6 The use of microcatheters on complex PCI might also increase success angioplasty. 7 Most of these techniques require a 6-French catheter or larger, which is sometimes difficult to use by radial approach.…”

Section: Introductionmentioning

confidence: 99%