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Start Over Author "Imanaka A" Publisher elsevier b.v.
809 results on '"Imanaka A"'

32. The Japanese Respiratory Society Noninvasive Positive Pressure Ventilation (NPPV) Guidelines (second revised edition)

Author

Akashiba, Tsuneto, Ishikawa, Yuka, Ishihara, Hideki, Imanaka, Hideaki, Ohi, Motoharu, Ochiai, Ryoichi, Kasai, Takatoshi, Kimura, Kentaro, Kondoh, Yasuhiro, Sakurai, Shigeru, Shime, Nobuaki, Suzukawa, Masayuki, Takegami, Misa, Takeda, Shinhiro, Tasaka, Sadatomo, Taniguchi, Hiroyuki, Chohnabayashi, Naohiko, Chin, Kazuo, Tsuboi, Tomomasa, Tomii, Keisuke, Narui, Koji, Hasegawa, Nobuyuki, Hasegawa, Ryuichi, Ujike, Yoshihito, Kubo, Keishi, Hasegawa, Yoshinori, Momomura, Shin-ichi, Yamada, Yoshitsugu, Yoshida, Masahiro, Takekawa, Yukie, Tachikawa, Ryo, Hamada, Satoshi, and Murase, Kimihiko

Published
2017
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34. Intravascular flipping technique for end-to-side microvascular anastomosis.

Author

Tsumura, Takuya, Matsumoto, Taiichi, Imanaka, Toshihide, and Ito, Hiromu

Abstract

Recent advances in minimally invasive perforator flaps, such as the superficial circumflex iliac artery (SCIP) flap, have increased the demand for anastomosing vessels with diameters less than 0.8 mm. However, discrepancies in size can occur, underscoring the significance of end-to-side anastomosis. Nevertheless, the conventional interrupted end-to-side suturing technique with vessel turnover presents challenges in situations with a limited operative field, short vascular pedicle, and tiny vessels. Therefore, we developed an intravascular flipping technique for end-to-side microvascular anastomosis with an inside technique or rotation-outside technique. The study involved 20 rats and with 15 arteries in 10 rats undergoing the flipping technique with inside or outside rotation. Both the inside and rotation-outside techniques exhibited a 100% immediate patency rate in the rats; however, after 1 week, this decreased to 80% and 86%, respectively. The SCIP flap and replantation procedures were successfully performed. The flipping technique offers several advantages, including ease of vessel manipulation using nylon threads and vascular clips, improved vessel visualisation, and spontaneous widening of the vessel lumen. [ABSTRACT FROM AUTHOR]

Published
2024
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42. Dual intravascular stent flipping technique for microvascular anastomosis.

Author

Tsumura, Takuya, Matsumoto, Taiichi, Imanaka, Toshihide, and Ito, Hiromu

Abstract

The anastomosis of vessels <0.5 mm in diameter is challenging. We developed a supermicrosurgical anastomosis technique, the dual intravascular stent flipping technique with a double or single clip (dual flipping technique, double-clip technique, and single-clip technique). In the dual flipping technique, we used a 7–0 nylon intravascular stent and clipped the vessel along with the nylon. The double-clip technique was performed in 10 rats with 20 saphenous and 15 superficial inferior epigastric arteries. Immediate and 1-week patency rates were assessed. Subsequently, we examined ten epigastric arteries in five rats with the single-clip technique. The clinical application was performed in six cases involving finger/fingertip amputations, two cases involving radial artery superficial palmar branch flap, and one case involving superficial circumflex iliac artery perforator flap. Using the double-clip technique, the immediate patency rate was 90% and 93% in the saphenous and superficial epigastric arteries, respectively, whereas the 1-week patency rate was 81%. With the single-clip technique, the immediate patency rate was 100%. The replantation and flaps were successful. The advantages of the dual flipping technique included easy insertion, rare slipping-out possibility, and spontaneous vessel dilation by the flipped nylon. Additionally, the posterior vessel wall could be sutured more easily than could the anterior wall. By using the elasticity of the thread to invert the blood vessel, the posterior wall can be sutured without the double clip. When forceps tip insertion into the lumen is difficult, the dual flipping technique enables a relatively easy anastomosis if the 7–0 nylon is inserted into the vessel lumen. [ABSTRACT FROM AUTHOR]

Published
2023
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