2.A Case of Hemolytic Anemia Caused by a Kinked Graft after Surgery for Acute Aortic Dissection
Takafumi HIROTA ; Keijiro INOUE ; Kosuke NAKATA ; Tatsuya HORIBE ; Jun TAKAKI ; Takashi YOSHINAGA ; Ken OKAMOTO ; Toshihiro FUKUI
Japanese Journal of Cardiovascular Surgery 2025;54(5):243-246
The patient was a 63-year-old man. He underwent total arch replacement for Stanford type A acute aortic dissection. Eleven years after surgery, blood tests showed anemia, elevated LDH and direct bilirubin levels, and a visual blood test detected crushed red blood cells, leading to a diagnosis of hemolytic anemia. The Computed tomography showed a highly kinked graft, and the catheter test showed an increase in the pressure gradient before and after the kinked graft, suggesting that the patient had hemolytic anemia caused by the kinked graft. Because he also had moderate aortic regurgitation and a patent foramen ovale, he underwent resection of the kinked graft, ascending aortic replacement, aortic valve replacement, and closure of the foramen ovale. The postoperative course was good, and hemolytic anemia was not observed.
3.Comparison of bispectral index-guided endoscopic ultrasonography with continuous vs. intermittent infusion of propofol: a retrospective study in Japan
Ayana OKAMOTO ; Ken KAMATA ; Tomohiro YAMAZAKI ; Shunsuke OMOTO ; Kosuke MINAGA ; Mamoru TAKENAKA ; Masatoshi KUDO
Clinical Endoscopy 2024;57(6):814-820
Background/Aims:
This study aimed to evaluate the safety and efficacy of continuous propofol infusion for anesthesia during endoscopic ultrasonography (EUS).
Methods:
A total of 427 consecutive patients who underwent EUS between May 2018 and February 2019 were enrolled in this study. The patients were divided into two propofol infusion groups: continuous (n=207) and intermittent (n=220). The following parameters were compared: (1) propofol dose, (2) respiratory and circulatory depression, (3) body movement requiring discontinuation of the examination, (4) awakening score, and (5) patient satisfaction.
Results:
The median total maintenance dose of propofol was significantly higher in the continuous group than in the intermittent group (160.0 mg vs. 130.0 mg, respectively); however, the reduction in SpO2 was significantly lower in the continuous group (2.9% vs. 13.2%). Body movements occurred less frequently in the continuous group than in the intermittent group (40.1% vs. 49.5%, respectively). The rate of complete awakening was significantly higher in the continuous group than in the intermittent group. Finally, there was a significant difference in the percentage of patients who answered “absolutely yes” when asked about receiving EUS again: 52.7% in the continuous group vs. 34.3% in the intermittent group.
Conclusions
Continuous infusion resulted in stable sedation and reduced propofol-associated risks.
4.Comparison of bispectral index-guided endoscopic ultrasonography with continuous vs. intermittent infusion of propofol: a retrospective study in Japan
Ayana OKAMOTO ; Ken KAMATA ; Tomohiro YAMAZAKI ; Shunsuke OMOTO ; Kosuke MINAGA ; Mamoru TAKENAKA ; Masatoshi KUDO
Clinical Endoscopy 2024;57(6):814-820
Background/Aims:
This study aimed to evaluate the safety and efficacy of continuous propofol infusion for anesthesia during endoscopic ultrasonography (EUS).
Methods:
A total of 427 consecutive patients who underwent EUS between May 2018 and February 2019 were enrolled in this study. The patients were divided into two propofol infusion groups: continuous (n=207) and intermittent (n=220). The following parameters were compared: (1) propofol dose, (2) respiratory and circulatory depression, (3) body movement requiring discontinuation of the examination, (4) awakening score, and (5) patient satisfaction.
Results:
The median total maintenance dose of propofol was significantly higher in the continuous group than in the intermittent group (160.0 mg vs. 130.0 mg, respectively); however, the reduction in SpO2 was significantly lower in the continuous group (2.9% vs. 13.2%). Body movements occurred less frequently in the continuous group than in the intermittent group (40.1% vs. 49.5%, respectively). The rate of complete awakening was significantly higher in the continuous group than in the intermittent group. Finally, there was a significant difference in the percentage of patients who answered “absolutely yes” when asked about receiving EUS again: 52.7% in the continuous group vs. 34.3% in the intermittent group.
Conclusions
Continuous infusion resulted in stable sedation and reduced propofol-associated risks.
5.Comparison of bispectral index-guided endoscopic ultrasonography with continuous vs. intermittent infusion of propofol: a retrospective study in Japan
Ayana OKAMOTO ; Ken KAMATA ; Tomohiro YAMAZAKI ; Shunsuke OMOTO ; Kosuke MINAGA ; Mamoru TAKENAKA ; Masatoshi KUDO
Clinical Endoscopy 2024;57(6):814-820
Background/Aims:
This study aimed to evaluate the safety and efficacy of continuous propofol infusion for anesthesia during endoscopic ultrasonography (EUS).
Methods:
A total of 427 consecutive patients who underwent EUS between May 2018 and February 2019 were enrolled in this study. The patients were divided into two propofol infusion groups: continuous (n=207) and intermittent (n=220). The following parameters were compared: (1) propofol dose, (2) respiratory and circulatory depression, (3) body movement requiring discontinuation of the examination, (4) awakening score, and (5) patient satisfaction.
Results:
The median total maintenance dose of propofol was significantly higher in the continuous group than in the intermittent group (160.0 mg vs. 130.0 mg, respectively); however, the reduction in SpO2 was significantly lower in the continuous group (2.9% vs. 13.2%). Body movements occurred less frequently in the continuous group than in the intermittent group (40.1% vs. 49.5%, respectively). The rate of complete awakening was significantly higher in the continuous group than in the intermittent group. Finally, there was a significant difference in the percentage of patients who answered “absolutely yes” when asked about receiving EUS again: 52.7% in the continuous group vs. 34.3% in the intermittent group.
Conclusions
Continuous infusion resulted in stable sedation and reduced propofol-associated risks.
6.The Consideration for an Unlikely Culprit Drug (Betahistine) Inducing Toxic Epidermal Necrolysis: A Case Report
Tetsuharu IKEGAMI ; Shujiro HAYASHI ; Maki OKAMOTO ; Junko KANAI ; Yuki KANEKO ; Yuki SAITO ; Tomoko KAMINAGA ; Youichiro HAMASAKI ; Ken IGAWA
Annals of Dermatology 2023;35(Suppl1):S135-S136
7.Phase I/II prospective clinical trial for the hybrid of intracavitary and interstitial brachytherapy for locally advanced uterine cervical cancer
Naoya MURAKAMI ; Miho WATANABE ; Takashi UNO ; Shuhei SEKII ; Kayoko TSUJINO ; Takahiro KASAMATSU ; Yumiko MACHITORI ; Tomomi AOSHIKA ; Shingo KATO ; Hisako HIROWATARI ; Yuko KANEYASU ; Tomio NAKAGAWA ; Hitoshi IKUSHIMA ; Ken ANDO ; Masumi MURATA ; Ken YOSHIDA ; Hiroto YOSHIOKA ; Kazutoshi MURATA ; Tatsuya OHNO ; Noriyuki OKONOGI ; Anneyuko I. SAITO ; Mayumi ICHIKAWA ; Takahito OKUDA ; Keisuke TSUCHIDA ; Hideyuki SAKURAI ; Ryoichi YOSHIMURA ; Yasuo YOSHIOKA ; Atsunori YOROZU ; Naonobu KUNITAKE ; Hiroyuki OKAMOTO ; Koji INABA ; Tomoyasu KATO ; Hiroshi IGAKI ; Jun ITAMI
Journal of Gynecologic Oncology 2023;34(3):e24-
Objective:
The purposes of this trial were to demonstrate the feasibility and effectiveness of the hybrid of intracavitary and interstitial brachytherapy (HBT) for locally advanced cervical cancer patients in the phase I/II prospective clinical trial.
Methods:
Patients with FIGO stage IB2-IVA uterine cervical cancer pretreatment width of which was ≥5 cm measured by magnetic resonance imaging were eligible for this clinical trial. The protocol therapy included 30–30.6 Gy in 15–17 fractions of whole pelvic radiotherapy concurrent with weekly CDDP, followed by 24 Gy in 4 fractions of HBT and pelvic radiotherapy with a central shield up to 50–50.4 Gy in 25–28 fractions. The primary endpoint of phase II part was 2-year pelvic progression-free survival (PPFS) rate higher than historical control of 64%.
Results:
Between October 2015 and October 2019, 73 patients were enrolled in the initial registration and 52 patients proceeded to the secondary registration. With the median follow-up period of 37.3 months (range, 13.9–52.9 months), the 2- PPFS was 80.7% (90% confidence interval [CI]=69.7%–88%). Because the lower range of 90% CI of 2-year PPFS was 69.7%, which was higher than the historical control ICBT data of 64%, therefore, the primary endpoint of this study was met.
Conclusion
The effectiveness of HBT were demonstrated by a prospective clinical study. Because the dose goal determined in the protocol was lower than 85 Gy, there is room in improvement for local control. A higher dose might have been needed for tumors with poor responses.
8.Bispectral index-guided propofol sedation during endoscopic ultrasonography
Ayana OKAMOTO ; Ken KAMATA ; Takeshi MIYATA ; Tomoe YOSHIKAWA ; Rei ISHIKAWA ; Tomohiro YAMAZAKI ; Atsushi NAKAI ; Shunsuke OMOTO ; Kosuke MINAGA ; Kentaro YAMAO ; Mamoru TAKENAKA ; Yasutaka CHIBA ; Toshiharu SAKURAI ; Naoshi NISHIDA ; Masayuki KITANO ; Masatoshi KUDO
Clinical Endoscopy 2022;55(4):558-563
Background/Aims:
Bispectral index (BIS) monitors process and display electroencephalographic data are used to assess the depth of anesthesia. This study retrospectively evaluated the usefulness of BIS monitoring during endoscopic ultrasonography (EUS).
Methods:
This study included 725 consecutive patients who underwent EUS under sedation with propofol. BIS monitoring was used in 364 patients and was not used in 361. The following parameters were evaluated: (1) median dose of propofol; (2) respiratory and circulatory depression; (3) occurrence of body movements; (4) awakening score >8 at the time; and (5) awakening score 2 hours after leaving the endoscopy room.
Results:
The BIS group received a significantly lower median dose of propofol than the non-BIS group (159.2 mg vs. 167.5 mg; p=0.015) in all age groups. For patients aged ≥75 years, the reduction in heart rate was significantly lower in the BIS group than in the non-BIS group (1.2% vs. 9.1%; p=0.023). Moreover, the occurrence of body movements was markedly lower in the BIS group than in the non-BIS group (8.5% vs. 39.4%; p<0.001).
Conclusions
During EUS examination, BIS monitoring is useful for maintaining a constant depth of anesthesia, especially in patients 75 years of age or older.
10.A Modified Under-Vastus Approach for Knee Arthroplasty with Anatomical Repair of Soft Tissue
Takafumi HIRANAKA ; Toshikazu TANAKA ; Takaaki FUJISHIRO ; Kensuke ANJIKI ; Naosuke NAGATA ; Daiya KITAZAWA ; Ken KOTOURA ; Koji OKAMOTO
Clinics in Orthopedic Surgery 2019;11(4):490-494
The under-vastus approach (UVA) is a modification of the conventional subvastus approach for knee arthroplasty. Our modified UVA allows the muscles to be spared while offering good exposure of the operative field and facilitating anatomical repair of the capsule and fascia. A medial parapatellar incision is made and the vastus medialis fascia is incised along the same line. The muscle belly is not incised but detached from the surrounding fascia and retracted laterally. The suprapatellar pouch capsule is then laterally incised under the vastus muscles. The patella can then be easily retracted laterally and adequate exposure is possible. After the procedure, both capsule and fascia can be anatomically repaired. We use this approach for all primary arthroplasties in our practice. There has been no case in which an additional muscle incision was required, and there were no intraoperative complications. The modified UVA allows for excellent exposure of the operative field as well as muscle retention in both primary total and unicompartmental knee arthroplasties.
Arthroplasty
;
Arthroplasty, Replacement, Knee
;
Fascia
;
Intraoperative Complications
;
Knee
;
Muscles
;
Osteoarthritis
;
Patella
;
Quadriceps Muscle


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