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排序方式: 共有2398条查询结果,搜索用时 93 毫秒
41.
Naoko Ohtani M.D. Kunihiko Kimoto Shunichi Yoshida Tsuguo Tanaka Hideto Inokuchi Keiichi Kawai 《Journal of gastroenterology》1992,27(1):115-120
An arteriovenous malformation of the pancreas is a very rare disease, but its presentation is distinct and unique. In this
report, we describe a patient who presented with this malformation which was localized in the tail of pancreas and demonstrated
by abnormal angiography findings. The patient was a 60-year-old male with severe left hypochondralgia. Angiography revealed
an increased blood volume in the tail of the pancreas with arteriovenous shunting. Secondary pancreatitis caused by the arteriovenous
malformation was suspected by abnormal laboratory data, and confirmed by histology from the resected tail of the pancreas.
This is a very rare report in which pancreatic arteriovenous malformation involving a pancreaticovenous fistula was confirmed
by endoscopic retrograde cholangiopancreatography (ERCP). 相似文献
42.
H Itoh S Shimasaki A Nakashima K Ohsato N Tokikuni C Kitajima 《Internal medicine (Tokyo, Japan)》1992,31(5):686-689
A 34-year-old man with Sweet's syndrome associated with subacute necrotizing lymphadenitis is reported. Histological examination of an erythematous, painful, cutaneous plaque revealed a dermal interstitial neutrophilic infiltrate. A biopsy specimen obtained from an inguinal lymph node showed granulomatous formation, consisting of histiocytes, with central necrosis in the paracortex and macrophages in the sinus. Although the causes of the two diseases remain obscure, this appears to be the first report of Sweet's syndrome associated with subacute necrotizing lymphadenitis. 相似文献
43.
Kazuko Shiozawa Yasushi Tanaka Shigeaki Imura Shunichi Shiozawa 《Modern rheumatology / the Japan Rheumatism Association》1997,7(2):103-114
To study the contribution of age to the outcome of rheumatoid arthritis (RA), 133 elderly-onset RA (ERA) patients (onset above
60-year-old) were selected out of 2164 out-patients with RA who (i) first visited the hospital within 2 years after onset
of the disease, (ii) received no remission inducing drugs previously and (iii) who were treated in this hospital regularly
without interruption for more than 2 years. The joint score of ERA patients between initial visit and final visit to the hospital
was compared with that of matched 133 younger-onset RA (YRA) patients (onset below 60-year-old). Results indicated that, in
ERA, the patients with no active joints requiring no remission inducing drugs were increased on final visit (P<0.001). Joint score at disease onset or on initial visit to the hospital was similar in the two groups, whereas joint score
on final visit was significantly decreased in ERA (P=0.0001). In ERA, progression of the small joint disease and joint erosion was not accelerated, and the small joint disease
was in fact decelerated as compared with YRA (P<0.0001) during initial visit and final visit. Discriminant function analysis of patients with or without no active joints
on final visit reveals that joint erosion, in small joints on initial visit is a predictor of joint prognosis in ERA. The
two groups were similar with regards to sex, disease duration, onset type and rheumatoid factor/antinuclear antibody positivity.
Thus, older age is an independent marker of better joint prognosis of RA 相似文献
44.
Hepatic resection under in situ hypothermic hepatic perfusion 总被引:2,自引:0,他引:2
Kaiho T Tanaka T Tsuchiya S Yanagisawa S Takeuchi O Miura M Saigusa N Kitakata Y Miyazaki M 《Hepato-gastroenterology》2003,50(51):761-765
BACKGROUND/AIMS: Temporary inflow occlusion of the portal triad has been used frequently in hepatectomy to minimize bleeding. On the other hand, Pringle's maneuver produces ischemic-reperfusion injury especially in patients with underlying liver disease. METHODOLOGY: Thirty-seven cases of hepatic resections were performed with intermittent Pringle's maneuver (IP group; n = 17) and in situ hypothermic perfusion (CP group; n = 20). In the CP group, hepatic inflow was continuously occluded, and 4-degree Centigrade Ringer's lactate was administered by drip during resection. Hepatic outflow occlusion was not performed. RESULTS: All patients tolerated the procedures well. Cold perfusion technique significantly decreased both the times required and the blood loss in hepatectomy (p < 0.05). Serum hyaluronic acid levels gradually increased after the induction of hepatectomy and peaked 10 minutes after reperfusion in the both groups. Thereafter, it decreased and showed a significantly lower level in the CP group until 60 minutes after reperfusion (p < 0.05). Hepaplastin levels remained significantly higher in the CP group one week after operation (p < 0.05). CONCLUSIONS: Using the technique of in situ hypothermic perfusion, we can prolong the ischemic time safely with minimal systemic influence even in cases with underlying liver diseases. This may compare favorably with intermittent Pringle's maneuver in terms of reducing hepatic sinusoidal endothelial cell damage during hepatectomy and reperfusion. 相似文献
45.
Nakamura Nobuo Nonogi Hiroshi Miyazaki Shunichi Nakanishi Norifumi Yoshioka Kimio Haze Kazuo Hiramori Katsuhiko 《Heart and vessels》1993,8(1):23-32
Summary To assess left ventricular diastolic properties in response to dynamic exercise, mitral inflow velocity integrals were measured
by pulsed-wave Doppler echocardiography in ten patients with myocardial infarction and in ten normal subjects, and simultaneous
left ventricular pressure was obtained with micromanometry in the patients. Early filling velocity integrals were maintained
in the patients during exercise. Late filling velocity integrals were not augmented during exercise in the patients, but were
increased in the normal subjects. In the patients, there was an increase in mitral valve opening pressure, left ventricular
end-diastolic pressure, and the time constant of left ventricular isovolumic pressure decay. The lowest diastolic pressure
and the number of time constants that had elapsed before the lowest diastolic pressure remained unchanged.
These results show that in patients with myocardial infarction, early filling is maintained by an increase in driving pressure
during exercise, despite incomplete relaxation. Augmentation of late filling, seen in normal subjects, is impaired in patients
with myocardial infarction, probably due to an increase in left ventricular stiffness. 相似文献
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49.
Harutoshi Asakawa Gen Sazaki Ken Nagashima Shunichi Nakatsubo Yoshinori Furukawa 《Proceedings of the National Academy of Sciences of the United States of America》2016,113(7):1749-1753
Surfaces of ice are covered with thin liquid water layers, called quasi-liquid layers (QLLs), even below their melting point (0 °C), which govern a wide variety of phenomena in nature. We recently found that two types of QLL phases appear that exhibit different morphologies (droplets and thin layers) [Sazaki G. et al. (2012) Proc Natl Acad Sci USA 109(4):1052−1055]. However, revealing the thermodynamic stabilities of QLLs remains a longstanding elusive problem. Here we show that both types of QLLs are metastable phases that appear only if the water vapor pressure is higher than a certain critical supersaturation. We directly visualized the QLLs on ice crystal surfaces by advanced optical microscopy, which can detect 0.37-nm-thick elementary steps on ice crystal surfaces. At a certain fixed temperature, as the water vapor pressure decreased, thin-layer QLLs first disappeared, and then droplet QLLs vanished next, although elementary steps of ice crystals were still growing. These results clearly demonstrate that both types of QLLs are kinetically formed, not by the melting of ice surfaces, but by the deposition of supersaturated water vapor on ice surfaces. To our knowledge, this is the first experimental evidence that supersaturation of water vapor plays a crucially important role in the formation of QLLs.Ice is one of the most abundant materials on Earth, and its surfaces are covered with thin liquid water layers even below their melting point (0 °C) (1–4). Such thin liquid water layers are called “quasi-liquid layers” (QLLs). Because QLLs govern the surface properties of ice just below the melting point, it is well acknowledged that surface melting of ice governs a wide variety of phenomena, such as electrification of thunderclouds (4, 5), regelation (4, 6), frost heave (4, 7), conservation of foods, ice skating (1, 8), preparation of a snowman (1), and growth of ice crystals (2, 4). Therefore, it is essential to understand the surface melting of ice crystals at the molecular level.After Michael Faraday proposed the existence of QLLs in 1842 (1), many studies experimentally confirmed the formation of QLLs by various methods (Measurement method Reference First author (experimental condition) Proton channeling (24, 25) G (S) Proton backscattering (26, 27) F (U) Ellipsometry (23, 28) F (U), B (E) X-ray diffraction (29) K (E) Glancing-angle X-ray scattering (30, 31) D (U) Quasi-elastic neutron scattering (32) M (E) Photoelectron spectroscopy (33, 34) N (E), B (E) NMR (35, 36) K (E), M (U) Optical microscopy (37, 38) E (S), G (S) Optical displacement sensor (39) K (U) Infrared spectroscopy (40) S (S) Sum-frequency vibrational spectroscopy (41, 42) W (E) Atomic force microscopy (43–46) B (S), D (U), S (U, E, S), P (E)