New device for compression of the radial artery after diagnostic and interventional cardiac procedures

Chatelain, P; Arceo, A; Rombaut, E; Verin, V.K.; Urban, Philip

doi:10.1002/(sici)1097-0304(199703)40:3<297::aid-ccd18>3.0.co;2-m

Cited by 41 publications

(33 citation statements)

References 10 publications

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“…In fact, in this study, no patients showed access site‐related complications [1]. In addition, no radial artery occlusions, which reportedly occur in 2–10% of cases receiving transradial coronary intervention [2, 6–10], were observed. As the number of study patients was limited, no definite conclusions can be made.…”

Section: Discussionmentioning

confidence: 73%

Reinforcing effect of silica on the properties of styrene butadiene rubber–reclaim rubber blend system

De¹,

Das²,

De³

et al. 2005

J of Applied Polymer Sci

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Incorporation of silica into styrene butadiene rubber (SBR)-reclaim rubber (RR) blend system was carried out by sol-gel technique and conventional method. A well known silica coupling agent bis(3-triethoxysilyl propyl) tetrasulfide was found to affect the curing characteristics and mechanical properties of SBR/RR vulcanizate. Here, the effect of RR on silica reinforcement was studied for different SBR/RR blend system. Silica incorporation by conventional mechanical mixing in absence of TESPT showed a much higher tensile properties than that of silica incorporated by the in situ sol-gel reaction of tetraethoxy silane both in presence and absence of TESPT. Studies of equilibrium swelling in a hydrocarbon solvent were also carried out. ATR study indicates that RR forms bond with silica particles due to the presence of active functional site on RR. The amount of silica incorporated by sol-gel reaction was determined through thermogravimetric analysis (TGA). Scanning electron microscopy (SEM) studies further indicate the coherency and homogeneity in the silica filled SBR/RR vulcanizate.

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Section: Discussionmentioning

confidence: 73%

Reinforcing effect of silica on the properties of styrene butadiene rubber–reclaim rubber blend system

De¹,

Das²,

De³

et al. 2005

J of Applied Polymer Sci

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show abstract

“…Some authors have emphasized that radial artery occlusion may be related to prolonged cannulation, small diameter of the radial artery, ratio of the radial artery diameter to the sheath outer diameter, and anticoagulation during arterial cannulation. [12][13][14][15] The diameter of the radial artery in Japanese patients has been reported to range from 2.35 to 3.4 mm in males and 2.41 to 3.0 mm in females. [15][16][17][18] In our study, the diameters of the radial artery in males and females were similar to those reported previously.…”

Section: Vol 45mentioning

confidence: 99%

Vasospasms of the Radial Artery After the Transradial Approach for Coronary Angiography and Angioplasty

et al. 2004

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SUMMARYWe examined vasospasms of the radial artery after a transradial approach was used for coronary angiography or angioplasty. In forty-eight patients (39 males and 9 females), arteriography of the radial artery was initially performed just after the transradial approach was used for coronary angiography and/or angioplasty. Then, five months later, a second arteriography of the radial artery was obtained after a transbrachial approach was used for coronary angiography. First and second arteriographies were compared to evaluate vasospasms of the radial artery. In the present study, more than 75% stenosis in the radial artery, 25-75% stenosis, and less than 25% stenosis were tentatively defined as severe spasms, moderate spasms, and mild spasms, respectively. In arteriographic studies on the radial artery, twenty-four patients (50%) had severe radial artery spasms, eleven patients (23%) had moderate spasms, and thirteen patients (27%) had mild spasms. The diameters of both the proximal and distal radial arteries in the severe spasm group were significantly smaller than those in the mild and moderate spasm groups (proximal site: severe group 2.39 ± 0.70 mm versus mild group 2.98 ± 0.46 mm, P < 0.05, and moderate group 2.96 ± 0.77 mm, P < 0.05, distal site: severe group 2.26 ± 0.60 mm versus mild group 2.73 ± 0.47 mm, P < 0.05, and moderate group 2.86 ± 0.71 mm, P < 0.05). We concluded that vasospasms of the radial artery occurred in most patients after the transradial approach. Furthermore, severe radial spasms were strongly correlated with the size of the diameter of the artery. ( 1,2) Thereafter, both transradial coronary intervention (TRI) and transradial coronary angiography (TRA) have been widely employed in Japan. It has been accepted among cardiologists that the transradial procedure produces fewer vascular complications than the convenFrom the

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“…These complications have been reported to occur in 2% to 10% of transradial cases, and a small radial artery and a large sheath/artery ratio correlated with the development of occlusion [7]. Other studies [8,9] have suggested that occlusion could be related to cannulation time, the size of the artery, and heparin regimen. Despite our relatively more prolonged procedural time (90 min) as compared to previous reports of transradial stenting [1][2][3][4], all our patients had preserved radial pulse the day after the procedure.…”

Section: Discussionmentioning

confidence: 99%

Coronary rotational atherectomy via transradial approach: A study using radial artery intravascular ultrasound

Gioia

Comito

Moreyra

2000

Cathet. Cardiovasc. Intervent.

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The use of coronary rotational atherectomy via radial artery (RA) has been limited because of the large diameter of guiding catheters. We studied the feasibility of this approach by sizing the RA by intravascular ultrasound (IVUS) and using 7 Fr (2.31 mm) guiding catheters. Seventeen transradial percutaneous transluminal coronary rotational atherectomy (PTCRA) procedures were performed in 16 patients, mean age 62 +/- 12 years, for a total of 19 vessels treated. The mean RA diameter was 2.9 +/- 0.36 mm and the mean reference diameter of the treated coronary vessels was 2.7 +/- 0.45 mm. The mean coronary percent stenosis was 74% +/- 10%, the mean minimum lumen diameter was 0.76 +/- 0.35 mm, and the mean lesion length was 16 +/- 19 mm. Ten vessels were treated with rotational atherectomy alone, or with adjunctive high pressure balloon angioplasty, achieving an acute lumen gain of 0.8 +/- 0.4 mm (P = 0. 001). Nine arteries had stent implantation in addition to rotational atherectomy, resulting in an acute lumen gain of 2.4 +/- 0.5 mm (P = 0.001). The success rate was 94%. There were no vascular complications. Two patients had a non-Q myocardial infarction. In conclusion, transradial PTCRA when used in conjunction with IVUS of the RA is a safe and feasible procedure in selected cases. This may be an alternative approach of revascularization technique especially for patients with limited vascular access and for those who require early ambulation or early discharge from the hospital.

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New device for compression of the radial artery after diagnostic and interventional cardiac procedures

Cited by 41 publications

References 10 publications

Reinforcing effect of silica on the properties of styrene butadiene rubber–reclaim rubber blend system

Reinforcing effect of silica on the properties of styrene butadiene rubber–reclaim rubber blend system

Vasospasms of the Radial Artery After the Transradial Approach for Coronary Angiography and Angioplasty

Coronary rotational atherectomy via transradial approach: A study using radial artery intravascular ultrasound

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