1.Clip ligation for treatment of patent ductus arteriosus occlusion in three cats
Yusuke OZAI ; Akiko UEMURA ; Ryou TANAKA ; Aki TAKEUCHI ; Lina HAMABE ; Kazumi SHIMADA ; Aimi YOKOI ; Miki HIROSE ; Momoko WATANABE ; Katsumi UEHARA
Journal of Veterinary Science 2022;23(4):e39-
Patent ductus arteriosus (PDA) is a rare congenital cardiovascular anomaly in cats. Due to their small body, intercostal thoracotomy is the most common option to close the PDA.However, few reports detail the surgical technique for ligating PDA in kittens. In this case report, three cats weighing 1.4 kg, 1.2 kg, and 2.9 kg were diagnosed PDA. Clip ligation via left fourth intercostal thoracotomy was performed and the cats were successfully treated.Postoperative echocardiography showed no residual flow in any of the cases. This case report highlights clip occlusion for small cats with PDA could be safe and effective.
2.Usefulness of Endoscopic Transpapillary Tissue Sampling for Malignant Biliary Strictures and Predictive Factors of Diagnostic Accuracy.
Hiroki TANAKA ; Shimpei MATSUSAKI ; Youichirou BABA ; Yoshiaki ISONO ; Tomohiro SASE ; Hiroshi OKANO ; Tomonori SAITO ; Katsumi MUKAI ; Tetsuya MURATA ; Hiroki TAOKA
Clinical Endoscopy 2018;51(2):174-180
BACKGROUND/AIMS: It is sometimes difficult to distinguish between malignant and benign biliary strictures using imaging studies alone, and pathological diagnosis is necessary. The aim of this study was to determine the usefulness of endoscopic transpapillary tissue sampling and factors predictive of diagnostic accuracy. METHODS: From April 2008 to December 2014, 136 patients underwent endoscopic transpapillary tissue sampling for malignant biliary strictures. The cytological and histological findings were reported as negative, suspicious, or positive. Suspicious and positive findings were defined as pathologically positive. RESULTS: The sensitivity was 65.0% for forceps biopsy, 49.5% for brush cytology, 46.2% for bile aspiration cytology, and 21.9% for endoscopic nasobiliary drainage cytology. The combination of these procedures improved the sensitivity (72.8%). Endoscopic transpapillary tissue sampling was more sensitive for lesions of biliary origin (91.4%) than for extrabiliary lesions (66.3%). In surgical cases, the sensitivity for tumors with an infiltrative growth pattern (53.3%) was significantly lower than for a tumor with an expanding or intermediate growth pattern (87.5%). CONCLUSIONS: Combining procedures can improve diagnostic accuracy. It may be possible to predict the sensitivity of endoscopic transpapillary tissue sampling by evaluating the etiology and tumor growth pattern using preoperative imaging studies.
Bile
;
Biliary Tract Neoplasms
;
Biopsy
;
Constriction, Pathologic*
;
Diagnosis
;
Drainage
;
Humans
;
Pancreatic Neoplasms
;
Surgical Instruments
3.Comparison of Predictive Factors for Postoperative Incontinence of Holmium Laser Enucleation of the Prostate by the Surgeons' Experience During Learning Curve.
Katsumi SHIGEMURA ; Kazushi TANAKA ; Fukashi YAMAMICHI ; Koji CHIBA ; Masato FUJISAWA
International Neurourology Journal 2016;20(1):59-68
PURPOSE: To detect predictive factors for postoperative incontinence following holmium laser enucleation of the prostate (HoLEP) according to surgeon experience (beginner or experienced) and preoperative clinical data. METHODS: Of 224 patients, a total of 203 with available data on incontinence were investigated. The potential predictive factors for post-HoLEP incontinence included clinical factors, such as patient age, and preoperative urodynamic study results, including detrusor overactivity (DO). We also classified the surgeons performing the procedure according to their HoLEP experience: beginner (<21 cases) and experienced (≥21 cases). RESULTS: Our statistical data showed DO was a significant predictive factor at the super-short period (the next day of catheter removal: odds ratio [OR], 3.375; P=0.000). Additionally, patient age, surgeon mentorship (inverse correlation), and prostate volume were significant predictive factors at the 1-month interval after HoLEP (OR, 1.072; P=0.004; OR, 0.251; P=0.002; and OR, 1.008; P=0.049, respectively). With regards to surgeon experience, DO and preoperative International Prostate Symptom Score (inverse) at the super-short period, and patient age and mentorship (inverse correlation) at the 1-month interval after HoLEP (OR, 3.952; P=0.002; OR, 1.084; P=0.015; and OR,1.084; P=0.015; OR, 0.358; P=0.003, respectively) were significant predictive factors for beginners, and first desire to void (FDV) at 1 month after HoLEP (OR, 1.009; P=0.012) was a significant predictive factor for experienced surgeons in multivariate analysis. CONCLUSIONS: Preoperative DO, IPSS, patient age, and surgeon mentorship were significant predictive factors of postoperative patient incontinence for beginner surgeons, while FDV was a significant predictive factors for experienced surgeons. These findings should be taken into account by surgeons performing HoLEP to maximize the patient's quality of life with regards to urinary continence.
Catheters
;
Holmium*
;
Humans
;
Lasers, Solid-State*
;
Learning Curve*
;
Learning*
;
Mentors
;
Multivariate Analysis
;
Odds Ratio
;
Prostate*
;
Quality of Life
;
Transurethral Resection of Prostate
;
Urinary Incontinence
;
Urodynamics
4.Efficacy of Using Three-Tesla Magnetic Resonance Imaging Diagnosis of Capsule Invasion for Decision-Making About Neurovascular Bundle Preservation in Robotic-Assisted Radical Prostatectomy.
Kazushi TANAKA ; Katsumi SHIGEMURA ; Mototsugu MURAMAKI ; Satoru TAKAHASHI ; Hideaki MIYAKE ; Masato FUJISAWA
Korean Journal of Urology 2013;54(7):437-441
PURPOSE: To evaluate the efficacy of using 3-tesla (T) magnetic resonance imaging (MRI) diagnosis of extracapsular extension (ECE) for decision-making about neurovascular bundle (NVB) preservation in robot-assisted radical prostatectomy (RARP) for prostate cancer (PC). MATERIALS AND METHODS: We prospectively collected data on PC patients (n=67) who underwent preoperative 3-T MRI before RARP. The choice between nerve sparing or resection was based on 3-T MRI findings of ECE. We compared the MRI findings with the pathological data on surgical margins. Our clinical staging in this study was defined only by MRI. RESULTS: When the data were divided by prostate lobe (right lobe or left lobe, n=134), 3-T MRI showed 28 positive cases of ECE in 134 prostate lobes, allowing NVB preservation in 42 cases (31.3%). Nerve-sparing surgery was achieved in 38.7% of cases in which clinical T2 staging by MRI was reported. The pathological data revealed that 10 of 134 prostate lobes had positive ECE. The overall sensitivity, specificity, positive predictive value, and negative predictive value for predicting stage T3 (positive ECE) by side were 60.0% (12 of 20 sides), 86.0% (98 of 114 sides), 42.9% (12 of 28 sides), and 92.5% (98 of 106 sides), respectively. CONCLUSIONS: Three-T MRI prior to RARP enables the use of ECE diagnosis to guide decision-making about NVB preservation, with comparatively high specificity and negative predictive value. Further prospective studies are underway to reach more definitive conclusions.
Humans
;
Magnetic Resonance Imaging
;
Magnetic Resonance Spectroscopy
;
Magnetics
;
Magnets
;
Prospective Studies
;
Prostate
;
Prostatectomy
;
Prostatic Neoplasms
;
Robotics
;
Sensitivity and Specificity
5.Possible Role of Sonic Hedgehog and Epithelial-Mesenchymal Transition in Renal Cell Cancer Progression.
Hosny M BEHNSAWY ; Katsumi SHIGEMURA ; Fatma Y MELIGY ; Fukashi YAMAMICHI ; Masuo YAMASHITA ; Wen Chin HAUNG ; Xiangyan LI ; Hideaki MIYAKE ; Kazushi TANAKA ; Masato KAWABATA ; Toshiro SHIRAKAWA ; Masato FUJISAWA
Korean Journal of Urology 2013;54(8):547-554
PURPOSE: Sonic hedgehog (Shh) signaling and epithelial-mesenchymal transition (EMT) are both known to relate to cancer progression. The purpose of this study was to investigate the role of Shh signaling and EMT in renal cell carcinoma (RCC). MATERIALS AND METHODS: Cell proliferation was assayed in RCC cell lines in the presence or absence of a Shh signaling stimulator, recombinant Shh (r-Shh) protein, or a Shh signaling inhibitor, cyclopamine. Real-time reverse transcription-polymerase chain reaction (RT-PCR) was performed to study the expression of EMT markers (E-cadherin, N-cadherin, and vimentin) and osteonectin. The expression of Ki-67, Gli-1, osteonectin, and EMT markers in nephrectomy specimens from RCC patients was also measured by immunohistochemical (IHC) staining. RESULTS: RCC cells showed enhanced cell proliferation by r-Shh protein, whereas cell proliferation was suppressed by the addition of cyclopamine in RenCa cells. Real-time RT-PCR showed that r-Shh suppressed the expression of E-cadherin and that this suppression was partly blocked by cyclopamine alone in RenCa cells. In the IHC results, osteonectin significantly correlated with vein sinus invasion (p=0.0218), and the expression of vimentin significantly correlated with lymphatic invasion (p=0.0392). CONCLUSIONS: Shh signaling and EMT play roles in RCC progression, and the Shh signaling inhibitor cyclopamine might be a possible molecular targeted therapeutic strategy for RCC.
Cadherins
;
Carcinoma, Renal Cell
;
Cell Line
;
Cell Proliferation
;
Epithelial-Mesenchymal Transition
;
Hedgehogs
;
Humans
;
Nephrectomy
;
Osteonectin
;
Polymethacrylic Acids
;
Veins
;
Veratrum Alkaloids
;
Vimentin
6.Significance of Neoadjuvant Hormonal Therapy in Radical Retropubic Prostatectomy: A Retrospective Single-Surgeon Study.
Fukashi YAMAMICHI ; Katsumi SHIGEMURA ; Shinichi MORISHITA ; Kunito YAMANAKA ; Kazushi TANAKA ; Hideaki MIYAKE ; Masato FUJISAWA
Yonsei Medical Journal 2013;54(2):410-415
PURPOSE: The purpose of this study was to evaluate whether neo-adjuvant hormonal therapy (NHT) prior to radical retropubic prostatectomy (RRP) for prostate cancer (PCa) is beneficial in terms of surgical outcomes and for preventing or delaying biochemical recurrence via single-surgeon case series study. MATERIALS AND METHODS: Fifty-three men underwent RRP by a single surgeon. The patients were divided into two groups according to whether or not NHT was performed prior to RRP. The study was analyzed retrospectively. We evaluated clinical parameters, surgical parameters, and biochemical recurrence rate. Group 1 (n=34) was treated with RRP only, while Group 2 (n=19) underwent RRP along with NHT. RESULTS: There were no significant differences in clinical, operation-related and pathological factors between the two groups (p>0.05). There was also no significant difference in biochemical recurrence rate between the two groups at the last follow-up, although Group 2 tended to have a lower PCa recurrence rate than Group 1 and the initial prostate-specific antigen (PSA) level was significantly higher in Group 2 than Group 1 (p=0.0496). CONCLUSION: The present single-surgeon case series study revealed a trend toward a lower rate of PCa recurrence in NHT+RRP treated patients compared to those treated with RRP alone, but this did not reach statistical significance, despite the fact that NHT+RRP patients exhibited higher serum PSA levels preoperatively. Prospective studies with a longer duration of observation and a greater number of patients would be helpful in evaluating NHT more definitively.
Humans
;
Kallikreins/blood
;
Male
;
*Neoadjuvant Therapy
;
Preoperative Period
;
Prostate-Specific Antigen/blood
;
*Prostatectomy
;
Prostatic Neoplasms/*drug therapy/surgery
;
Recurrence
;
Retrospective Studies
7.Postoperative Infectious Complications in Our Early Experience With Holmium Laser Enucleation of the Prostate for Benign Prostatic Hyperplasia.
Katsumi SHIGEMURA ; Kazushi TANAKA ; Takahiro HARAGUCHI ; Fukashi YAMAMICHI ; Mototsugu MURAMAKI ; Hideaki MIYAKE ; Masato FUJISAWA
Korean Journal of Urology 2013;54(3):189-193
PURPOSE: The objective of this study was to retrospectively investigate postoperative infectious complications (PICs) in our early experience with holmium laser enucleation of the prostate (HoLEP) followed by mechanical morcellation for symptomatic benign prostatic hyperplasia. MATERIALS AND METHODS: A retrospective review was performed of the clinical data for 90 consecutive patients who underwent HoLEP at our institution between February 2008 and March 2011. All patients were evaluated for the emergence of PICs, including prophylactic antibiotic administration (PAA) and the influence of the kind or duration of PAA on PIC. The details of cases with PICs were also examined. RESULTS: The patients' mean age was 71 years (range, 50 to 95 years), and their mean prostate volume was 60 mL (range, 2 to 250 mL). There were 7 cases (7.78%) with PICs; in detail, 3 patients were diagnosed with prostatitis, 2 with pyelonephritis, and 2 with epididymitis. Three patients had positive urine cultures: 1 had Serratia marcescens/Proteus mirabilis, 1 had S. marcescens, and 1 had Klebsiella pneumonia; only one case had urological sepsis. Our statistical data showed no significant differences between 2 or fewer days and 3 or more days of PAA and PIC occurrence. There was also no significant effect on PIC occurrence of sulbactam/ampicillin compared with other antibiotics. CONCLUSIONS: The results of this retrospective study showed that PIC occurrence did not depend on the duration or the kind of PAA. Further prospective study is necessary for the evaluation and establishment of prophylactic measures for PICs.
Epididymitis
;
Holmium
;
Humans
;
Klebsiella
;
Lasers, Solid-State
;
Male
;
Mirabilis
;
Postoperative Complications
;
Prospective Studies
;
Prostate
;
Prostatectomy
;
Prostatitis
;
Pyelonephritis
;
Retrospective Studies
;
Sepsis
;
Serratia
8.Research on the situation of the employment needs of acupuncture, moxibustion, and massage practitioners in clinics
Hiroshi KONDO ; Ryosuke FUJII ; Katsumi KURIHARA ; Hideki TANAKA ; Satoshi KUROIWA ; Mitsunori HANDA
Journal of the Japan Society of Acupuncture and Moxibustion 2012;62(1):47-54
[Objective]To analyze the situation of clinics that want to employ acupuncturists and masseurs and to obtain basic data to find employment in the clinic in the future.
[Methods]The subjects were 52 clinics that responded to the questionnaire survey saying they wanted to employ acupuncture and massage therapists. They were divided into three groups according to the license (acupuncture group (n = 5), acupuncture &massage group (n = 25), massage group (n = 22)). The situation and the business realities of the clinic were analyzed.
[Results]Clinics with obstetrics and gynecology want to employ only acupuncturists. There were as many employment needs for both acupuncturists and masseurs in clinics with orthopedics and rehabilitation. The employment satisfaction rating is higher for the patient's need standpoint than cost-effectiveness.
[Conclusion]We analyzed the status of clinics that want to employ acupuncturists and masseurs. This study is expected to help promote the employment of medical acupuncturists and masseurs.
9.Efficacy of Combination Use of Beta-Lactamase Inhibitor with Penicillin and Fluoroquinolones for Antibiotic Prophylaxis in Transrectal Prostate Biopsy.
Katsumi SHIGEMURA ; Minori MATSUMOTO ; Kazushi TANAKA ; Masuo YAMASHITA ; Soichi ARAKAWA ; Masato FUJISAWA
Korean Journal of Urology 2011;52(4):289-292
PURPOSE: To investigate the efficacy of tazobactam/piperacillin (TAZ/PIPC) plus levofloxacin (LVFX) as a prophylactic administration in transrectal prostate biopsy (TPBX). MATERIALS AND METHODS: We investigated 201 consecutive patients who underwent TPBX in one Japanese hospital during the period of 2009-2010. The patients received TAZ/PIPC 4.5 g i.v. once just before and 3 hours after TPBX, plus oral LVFX 300 mg or 500 mg daily for 3 days. We examined the infectious adverse events and laboratory data (serum white blood cell [WBC] count and C-reactive protein [CRP]) before and 1 day after TPBX. RESULTS: Only one patient (0.50%) in 201 cases had febrile complications after TPBX. Serum WBC and CRP did not rise significantly on the day after TPBX compared with before TPBX (p>0.05). There was no significant difference in the rise of serum WBC and CRP before and after TPBX in the comparison of LVFX 500 mg with LVFX 300 mg in the TAZ/PIPC plus LVFX regimen. CONCLUSIONS: TAZ/PIPC plus LVFX can be considered as a prophylactic regimen for preventing infectious complications in TPBX.
Antibiotic Prophylaxis
;
Asian Continental Ancestry Group
;
beta-Lactamases
;
Biopsy
;
C-Reactive Protein
;
Fluoroquinolones
;
Humans
;
Leukocytes
;
Ofloxacin
;
Penicillins
;
Prostate
10.Diagnosis of Unstable Angina Patients with Significant Coronary Artery Stenosis by History-Taking and Electrocardiography.
Masahiko SODA ; Yasutaka SHIBATA ; Keiji FUNAHASHI ; Yumiko NODA ; Yumika NISHIO ; Takeo GOTO ; Katsumi TANAKA ; Fumio SAITO
Journal of the Japanese Association of Rural Medicine 1997;46(2):148-153
This study investigated whether significant coronary artery stenosis in 231 consecutive unstable angina patients can be diagnosed by thoroughgoing history-taking initial electorocardiography and symptom- or sign-limited treadmill exercise ECG after medication. The unstable angina patients were divided into those with accelerated angina, those with new-onset effort angina and those with angina at rest based on the findings of detailed inquiry. Initial ECG showed that the sensitivity and specificity of detecting significant coronary artery stenosis in all patients were 55.2% and 63.2%, respectively. In accelerated angina, sensitivity and specificity were 52.2% and 50.0%, respectively. In new-onset effort angina, sensitivity and specificity were 46.7% and 57.1%, respectively. In angina at rest, sensitivity and specificity were 69.0% and 68.3%, respectively. Initial ECG provided valuable diagnostic information about angina at rest. Treadmill exercise ECG offered 66.0% sensitivity and 89.2% specificity in all patients, respectively. In accelerated angina, sensitivity and specificity were 80.0% and 66.7%, respectively. In new-onset effort angina, sensitivity and specificity were 70.8% and 87.8%, respectively. In angina at rest, sensitivity and specificity were 48.3% and 91.4%, respectively. Thus, treadmill exercise electrocardiograms provided valuable diagnostic information in the case of unstable angina, especially accelerated angina and new-onset effort angina. For patients with angina at rest, this testing was very useful for excluding significant coronary artery stenosis.
In conclusion, detailed inquiry, initial ECG and symptom- or sign-limited treadmill exercise ECG after medical stabilization proved to be of great value for diagnosing unstable angina patients with significant coronary artery stenosis.


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