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排序方式: 共有98条查询结果,搜索用时 31 毫秒
1.
Clinical parameters that predict histology of postchemotherapy retroperitoneal lymph node mass in testicular cancer 总被引:2,自引:0,他引:2
MIZUKI ONOZAWA KOJI KAWAI TAKAHIRO YAMAMOTO SHIRO HINOTSU SADAMU TSUKAMOTO KAZUNORI HATTORI NAOTO MIYANAGA TORU SHIMAZUI HIDEYUKI AKAZA 《International journal of urology》2004,11(7):535-541
BACKGROUND: Since the advent of cisplatin-based chemotherapy, the majority of metastatic testicular cancers can be cured by chemotherapy followed by retroperitoneal lymph node dissection (RPLND). However, postchemotherapy RPLND confers no therapeutic benefit if the residual mass contains no viable cells. Therefore, to determine which parameters predict a patient's likelihood of having only necrosis in the residual mass, we retrospectively analyzed clinical parameters of patients who underwent postchemotherapy RPLND. METHODS: Data from 27 patients with metastatic testicular cancer were analyzed. The histology of the primary tumor was seminoma in 11 cases and non-seminoma in 16 cases. All of the patients with non-seminoma showed a normalization of tumor markers after chemotherapy. Analysis of clinical parameters included data for the initial histology, pretreatment tumor marker levels, postchemotherapy retroperitoneal mass size, and the histology of the dissected RPLNs. RESULTS: Histological examination of dissected RPLNs showed residual tumor in 27% of seminoma patients and 38% of non-seminoma patients. In seminoma patients, no viable cells were found in all six patients with pretreatment lactate dehydrogenase (LDH) levels below 7.5 times the upper limit of normal, or in all five of the patients with postchemotherapy RPLNs less than 2.5 cm. In non-seminoma patients, no viable cells were found in nine of 10 patients with pretreatment alpha-fetoprotein (AFP) levels less than 2700 ng/mL, or in eight of nine patients with residual mass less than 2.5 cm. CONCLUSIONS: Both postchemotherapy RPLN mass size and pretreatment tumor marker levels are possible predictors for necrosis of the residual mass in testicular cancer patients. 相似文献
2.
DAISUKE ISHII AKIRA IRIE KAZUMASA MATSUMOTO TAKANORI TOJO YOSHINORI TAOKA MASATSUGU IWAMURA KAZUNARI YOSHIDA SHIRO BABA 《International journal of urology》2006,13(7):1009-1011
Laparoscopic cystectomy and bilateral ureteric ligation were performed on a 52-year-old woman with end-stage renal disease on hemodialysis (HD) for muscle-invasive bladder cancer. Her volume of urine production was approximately 100 mL/day. Excisions of the bladder and uterus with ligation of the bilateral ureter were conducted completely laparoscopically. Total operative time was 280 min and the amount of blood loss was 60 mL. No complications were seen perioperatively and no adverse events regarding ureteric ligation arose. HD was performed on the second postoperative day. At a 12-month follow-up, the patient showed no evidence of disease. 相似文献
3.
HISAKI MAKIMOTO M.D. Ph.D. IKUTARO NAKAJIMA M.D. KOJI MIYAMOTO M.D. YUKO YAMADA M.D. HIDEO OKAMURA M.D. TAKASHI NODA M.D. Ph.D. TAKESHI AIBA M.D. Ph.D. SHIRO KAMAKURA M.D. Ph.D. KENGO KUSANO M.D. Ph.D. WATARU SHIMIZU M.D. Ph.D. KAZUHIRO SATOMI M.D. Ph.D. 《Pacing and clinical electrophysiology : PACE》2015,38(5):630-640
4.
TAKESHI AIBA M.D. KAZUHIRO SUYAMA M.D. KIYOTAKA MATSUO M.D. ATSUSHI TAGUCHI M.D. WATARU SHIMIZU M.D. TAKASHI KURITA M.D. NAOHIKO AIHARA M.D. SHIRO KAMAKURA M.D. 《Journal of cardiovascular electrophysiology》1998,9(9):1004-1007
Mid-Diastolic Potential in Idiopathic VT. We report a case of verapamil-sensitive idiopathic ventricular tachycardia in which a mid-diastolic potential (MDP) 45 msec preceding the Purkinje potential ( P potential) was recorded. Pacing during the tachycardia caused concealed entrainment, and the stimulus–QRS interval was equal to the P potential–QRS interval. The interval between the last pacing stimulus and the next P potential (postpacing interval) was longer than the ventricular tachycardia cycle length, but the MDP was orthodromically activated. These findings suggest that the MDP was on the reentrant circuit and the P potential was not on the reentrant circuit, but a bystander. 相似文献
5.
KOJI KAWAI TAKAHIRO KOJIMA NAOTO MIYANAGA KAZUNORI HATTORI SHIRO HINOTSU TORU SHIMAZUI HIDEYUKI AKAZA 《International journal of urology》2005,12(3):284-289
BACKGROUND: Lens culinaris agglutin (LCA)-affinity electrophoresis resolves serum alpha-fetoprotein (AFP) into three isoforms, AFP-L1, -L2 and -L3. The ratio of AFP-L3 to total AFP (AFP-L3%) is frequently high in hepatocellular carcinoma (HCC) patients, and thus, it is widely used for early diagnosis of HCC. In the present study, we used the subfraction profile of LCA-binding AFP to diagnose and monitor testicular tumor activity. METHODS: Serum samples were collected from 21 testicular tumor patients, and the LCA-reactive fractions were determined by LCA-affinity electrophoresis coupled with antibody-affinity blotting. The histological diagnosis was non-seminomatous germ cell tumor (NSGCT) in 15 patients and pure seminoma in six patients. RESULTS: Serum AFP levels were abnormally elevated (>20 ng/mL) in 10 of 15 NSGCT patients. One NSGCT patient and two seminoma patients showed borderline AFP levels between 10 and 20 ng/mL. LCA-reactive AFP was detected in all 11 NSGCT patients with serum AFP levels above 10 ng/mL, but not in the two seminoma patients with serum AFP levels above 10 ng/mL. In testicular tumor patients, the broad band of AFP-L2 could not be completely separated from AFP-L3. The mean ratio of AFP-L3 plus AFP-L2 (AFP-L2 + 3%) was as high as 94% (range 80-99%) in these patients. Serial determinations of LCA-reactive fractions were performed in eight of the 11 LCA-reactive AFP-positive patients. They included five patients who received chemotherapy, and three patients who underwent orchiectomy for stage I NSGCT. In three of eight patients, LCA-reactive AFP was detected even after normalization of total AFP levels. All three patients relapsed, with elevation of serum AFP within several months. CONCLUSION: Determination of LCA-reactive AFP might be a useful marker for testicular tumor activity in patients with lower AFP levels. 相似文献
6.
IKUO SAITO EIKO TAKESHITA TAKAO SARUTA SHIRO NAGANO TOSHIO SEKIHARA 《Clinical endocrinology》1986,24(5):565-570
The effects of the calcium entry blocker nifedipine on blood pressure, heart rate, plasma renin activity, aldosterone, noradrenaline and adrenaline were studied in 23 normotensive subjects in the supine and upright positions. Nifedipine, 10 mg administered sublingually, lowered mean blood pressure and increased heart rate, plasma noradrenaline and renin activity without increasing plasma aldosterone in the supine position. The increase in plasma aldosterone in response to upright posture was inhibited by nifedipine, whereas the rise in plasma noradrenaline was augmented. These results suggest that intracellular calcium is important as a regulator of aldosterone secretion as well as of vascular tone in normotensive subjects. 相似文献
7.
KAZUHIRO SUYAMA TAKASHI KURITA WATARU SHIMIZU KIYOTAKA MATSUO ATSUSHI TAGUCHI NAOHIKO AIHARA SHIRO KAMAKURA KATSURO SHIMOMURA 《Pacing and clinical electrophysiology : PACE》1998,21(9):1693-1699
The retrograde atrial potential at a successful ablation site is usually obscured by the wide and large ventricular potential during atrioventricular reentrant tachycardia or ventricular pacing, which makes it difficult to determine the appropriate ablation site for concealed accessory pathway. A pacing maneuver named the “simultaneous pacing method” is proposed herein to differentiate the retrograde atrial potential from the ventricular potential for a successful ablation of the concealed accessory pathway. Catheter ablation was performed in 12 patients with a single left free-wall concealed accessory pathway. The atrial insertion site was determined by the simultaneous pacing method in six patients (group I) and by ventricular pacing in six patients (group II), In the simultaneous pacing method, electrograms recorded during ventricular pacing in the earliest retrograde atrial activation site are a fusion of the ventricular potential and the following retrograde atrial potential. When atrial and ventricular pacings are performed simultaneously (simultaneous pacing), the end portion of the electrograms recorded at the same site is solely the ventricular component, because atrial is activated earlier. The atrial potential can be confirmed during ventricular pacing in comparison with the electrograms during the “simultaneous pacing.” Radiofrequency catheter ablation was successful in eliminating conduction through the accessory pathway in all 12 patients. The radiofrequency applications in group I were significantly fewer than those in group II (1.7 ± 1.0 in group I, 5.3 ± 3.2 in group II, P < 0.05). The total procedure time in group I was significantly shorter than in group II (57.8± 15.7 vs 106.7 ± 41.6 mins in group II. respectively, P < 0.05). The fluoroscopy time in group I was significantly shorter than in group II (54.0 ± 7.9 vs 81.3± 26.3 mins, respectively, P < O.05). We were able to determine the atrial insertion site of accessory pathways by the simultaneous pacing method. The simultaneous pacing method was useful in eliminating concealed left free-wall accessory pathways. 相似文献
8.
KAZUHIRO SUYAMA TOHRU OHE TAKASHI KURITA TAKAHISA MARUYAMA HIROSHI TAKAKI NAOHIKO AIHARA SHIRO KAMAKURA WATARU SHIMIZU MOKUO MATSUHISA KATSURO SHIMOMURA 《Pacing and clinical electrophysiology : PACE》1992,15(8):1114-1121
We examined entrainment by ventricular pacing in six patients during orthodromic atrioventricular reentrant tachycardia (AVRT) utilizing a left-sided lateral accessory pathway. Constant fusion and progressive fusion were demonstrated in all patients by left ventricular pacing during tachycardia, but in none of the patients by right ventricular pacing. When left ventricular pacing was performed during AVRT, the antidromic wave front from the pacing impulse (n) collided with the orthodromic wave front of the previous pacing beat (n - 1) within the ventricle, therefore, constant fusion and progressive fusion were demonstrated in the surface electrocardiographic QRS complexes. On the other hand, when right ventricular pacing was performed during orthodromic AVRT, the antidromic wave front from the pacing impulse (n) collided with the orthodromic wave front of the previous paced beat (n - 1) within the normal atrioventricular pathway, and constant fusion and progressive fusion were therefore not demonstrated. These phenomena were explained by the relationship of the ventricular pacing site and the reentrant circuit. This study demonstrates the importance of the pacing site in manifest entrainment of orthodromic AVRT during ventricular pacing. 相似文献
9.
AKIRA IRIE TOYOAKI UCHIDA HIDEYUKI YAMASHITA KAZUMASA MATSUMOTO TAKEFUMI SATOH HIDESHIGE KOH SATORU SHIMURA MASATSUGU IWAMURA SHIRO BABA 《International journal of urology》2003,10(4):183-189
BACKGROUND: Intravesical instillation of bacillus Calmette-Guérin (BCG) is the most efficient strategy for prophylaxis of superficial bladder cancer recurrence. Adverse effects of BCG are major obstacles, but the reduction of BCG dose could minimize these effects. The efficacy and adverse effects of half-dose (40 mg) BCG, Tokyo 172 strain, were prospectively evaluated. METHODS: A total of 93 patients with superficial bladder cancer (pTa or pT1) were sequentially assigned to receive either 40 or 80 mg of BCG after transurethral resection. BCG was administered weekly for 6 weeks postoperatively. Eighty patients observed longer than 12 months after BCG therapy (41, 40 mg group; 39, 80 mg group) were analyzed. RESULTS: BCG therapy course was completed in 71 patients. Tumor recurrence was recognized in 11 of 40 patients in the 40 mg group and in 5 of 31 patients in the 80 mg group. There was no significant difference in tumor recurrence rate between the two groups (P = 0.547). BCG therapy was withdrawn in 1 patient in the 40 mg group and in 8 patients in the 80 mg-group because of BCG-related adverse effects. The morbidity of BCG-related toxicity was significantly higher in the 80 mg group. CONCLUSION: Half-dose of BCG Tokyo 172 strain had a similar efficacy and its toxicity was significantly lower compared to the standard dose. Thus, half-dose of this strain might be suitable, at least for initial BCG therapy, for the prophylaxis of bladder cancer recurrence. Further study would be necessary to clarify the efficacy of low-dose instillation in high-risk patients. 相似文献
10.
MOKUO MATSUHISA KATSURO SHIMOMURA TOHRU OHE SHIRO KAMAKURA NAOHIKO AIHARA 《Pacing and clinical electrophysiology : PACE》1990,13(4):443-452
The purpose of this study is to elucidate electrophysiological determinants of double ventricular response (DVR) to a single atrial extrastimulus in Wolff-Parkinson-White (WPW) syndrome. DVR was observed in 5 (3.4%) out of 146 consecutive patients with WPW syndrome. The site of accessory pathway was located in left lateral free wall in four patients and posterior septum in one. DVR was induced by extrastimulus from coronary sinus in four patients with left-sided accessory pathway, and from both coronary sinus and high right atrium in a patient with septal accessory pathway. However, it was not possible to induce DVR from high right atrium in patients with left-sided accessory pathway, because 50 to 80 ms are needed for intra-atrial conduction from high right atrium to coronary sinus. Critical prolongation of normal AV conduction allowing DVR was seen in the slow pathway of AV node in four patients. In the remaining patients requisite conduction delay occurred in both AV node and His-Purkinje system. Single right ventricular extrastimulus could easily elicit orthodromic AV reciprocating tachycardia or echo beat in four out of five patients and incremental ventricular stimulation induced it in the remaining patient, indicating the presence of retrograde block in the normal AV pathway. As requisites of DVR to a single atrial extrastimulus in WPW syndrome: (1) slow antegrade conduction and retrograde block in the normal AV pathway; and (2) stimulation site in the vicinity of accessory pathway, are needed. 相似文献