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Masato Sasaki Seiya Hirai Masakazu Kawabe Takahiko Uesaka Kouichi Morioka Akio Ihaya Kuniyoshi Tanaka 《European journal of cardio-thoracic surgery》2005,27(2):307-312
OBJECTIVE: The baseball-diamond principle is generally used for trocar placement during video-assisted thoracic surgery; however, we are unable to treat all peripheral lung lesions using this principle. Therefore, we have developed another method for determining trocar placement based on a modification of the conventional principle. We have termed this method the triangle target principle. This report describes the instrument positioning that we now use for many video-assisted thoracic surgical procedures. METHODS: We position 3 trocars in an equilateral triangle, with the target lesion at the apex. One vertex of the base becomes the site of the first trocar placement for introduction of the thoracoscopic camera. Another vertex of the base becomes the site for the second trocar for forceps or the endoscopic stapler. The third trocar is for forceps and is inserted to create the vicinity of target lesion. Four types of the triangle target principle were developed according to sites of the target lesion. RESULTS: Between January 2000 and December 2002, we used this principle for 161 patients who underwent video-assisted thoracic surgery and all intrathoracic lesions were accessible except in 3 patients requiring intraoperative modifications. CONCLUSIONS: We conclude that video-assisted thoracic surgery by this principle is more effective and easier than the conventional principle to treat intrathoracic disease. 相似文献
3.
Koichi Murata Yasuaki Nakagawa Takashi Suzuki Masahiko Kobayashi Seiya Kotani Takashi Nakamura 《Knee surgery, sports traumatology, arthroscopy》2007,15(10):1261-1263
Intraosseous ganglia of the glenoid are rare, and their etiology is unknown. This report describes a case of an intraosseous
ganglion about to cause fracture of the glenoid. The patient was a 61-year-old woman with a painful left shoulder with a limited
range of motion. Her symptoms did not improve after non-operative treatment. Arthroscopic examination showed a cartilage defect
and erosion in the posteroinferior portion of the glenoid, behind which computed tomography (CT) showed a cystic lesion of
the glenoid. There was no communication between the cyst and the joint space. The patient was treated by curettage and an
autogenous cancellous bone graft from the iliac crest. Two years after the operation, the patient was almost free from pain,
and CT showed good integration of the bone graft. 相似文献
4.
Isolation of a renal function-facilitating constituent from the Oriental drug, salviae miltiorrhizae radix 总被引:2,自引:0,他引:2
An attempt was made to isolate the active component which exhibits an improving effect on renal function from Salviae Miltiorrhazae Radix (Chinese crude drug). Systematic isolation from aqueous extract of Salviae Miltiorrhizae Radix was carried out, and Compound 1 was found to be more effective than any of the other constituents in improving renal functional parameters; that is, a marked reduction of glomerular filtration rate following adenine ingestion was improved by administration of this substance. The renal plasma flow and renal blood flow were also increased in renal failure rats. On the basis of chemical and spectroscopic data, Compound 1 was shown to be identical with magnesium lithospermate B. 相似文献
5.
6.
Seiya Kikuchi Akira Ingu Masayoshi Ito 《Annals of thoracic and cardiovascular surgery》2005,11(5):320-323
We report an 18-month-old boy with the association of pectus excavatum and tetralogy of Fallot (TOF). We successfully performed simultaneous pectus repair using sternal elevation without any prosthetic support and total correction of TOF after a prior modified Blalock-Taussig shunt. Retracting a divided costo-sternal complex with a rectus abdominal flap away from the operative field before the cardiac operation provided excellent surgical exposure. The modified Blalock-Taussig shunt prior to the combined repair prevented life-threatening hypoxic spells during dissection of the deformed sternum and costochondral cartilages before institution of cardiopulmonary bypass. 相似文献
7.
8.
Renal responses to magnesium lithospermate B 总被引:5,自引:0,他引:5
T Yokozawa T W Lee H Y Chung H Oura G Nonaka I Nishioka 《The Journal of pharmacy and pharmacology》1990,42(10):712-715
Renal responses to magnesium lithospermate B isolated from Salviae miltiorrhizae radix were examined in normal rats. Urinary sodium, potassium, prostaglandin E2 and kallikrein excretion was significantly increased after magnesium lithospermate B administration, whereas excretion of urinary 6-keto-prostaglandin F1 alpha and thromboxane B2 was unchanged. Rats administered with the drug also revealed a slight elevation of plasma renin activity and the levels of angiotensins I and II. Plasma aldosterone was decreased slightly. No significant changes were observed in angiotensin-converting enzyme or blood pressure. 相似文献
9.
The glomerular filtration rate (GFR), renal plasma flow (RPF) and renal blood flow (RBF) were all markedly decreased in rats given an adenine diet as the period of adenine administration lengthened. Concurrently, the urinary excretions of prostaglandin E2 (PGE2) and 6-keto-prostaglandin F1 alpha(6-keto-PGF1 alpha) decreased gradually in parallel with the renal function parameters, whereas the urinary excretion of thromboxane B2 (TXB2) increased markedly. These findings suggest the involvement of prostaglandin in the renal circulation. 相似文献
10.
Bunichiro Yamada Seiya Kobatake Shuzo Aoki 《Macromolecular chemistry and physics.》1994,195(2):581-590
The synthesis of methyl methacrylate/styrene copolymer bearing overwhelmingly bromine and the 2-carbomethoxyallyl group (CH2?C(COOCH3)CH2? ) at the α- and ω-termini instead of the fragment of the initiator with reduced molecular weight was investigated by using methyl α-(bromomethyl)acrylate as chain transfer agent through the addition-fragmentation mechanism. The molecular weight of the copolymer was effectively decreased with bromomethylacrylate, and the unsaturated end groups quantitatively bound to two types of the monomeric units were differentiated by means of 1H NMR spectroscopy. Equations estimating the reactivities of methyl α-(bromomethyl)acrylate towards polystyrene and poly(methyl methacrylate) radicals were derived. Methyl α-(bromomethyl)acrylate was found to be more reactive toward the poly(methyl methacrylate) radical than the polystyrene radical by a factor of 0,62. 相似文献