1.Surgical Salvage of Acute Pulmonary Thronrboembolism Supported by a Percutaneous Cardiopulmonary Bypass System.
Yoshimori Araki ; Kazuyoshi Tajima ; Jiniti Iwase ; Tomonobu Abe ; Wataru Kato ; Keisuke Tanaka ; Akinori Io ; Yoshito Suenaga
Japanese Journal of Cardiovascular Surgery 2000;29(2):122-125
We report a 66-year-old woman with circulatory collapse due to acute pulmonary thromboembolism, in whom a left nephrectomy for a renal tumor was scheduled. Following preoperative renal angiography. The patient suffered sudden shock resulting from pulmonary thromboembolism (PTE) following release of compression of the puncture site. The patient was transported to the ICU, and percutaneous cardiopulmonary support (PCPS) was instituted immediately for resuscitation. Hemodynamics were stabilized by PCPS and percutaneous thrombectomy was attempted. However, perforation by a catheter inverted to the extracardiac space occurred, which neccesitated emergency surgical hemostasis. PCPS was converted to cardiopulmonary bypass (CPB). The injured right ventricle and right atrial walls were repaired, and pulmonary thrombectomy was performed via the pulmonary trunk. CPB was easily terminated and her postoperative course was uneventful with anticoagulant therapy. Left nephrectomy was performed two months later. PTE recurred due to the interruption of anticoagulation for surgical treatment of a renal tumor. Percutaneous pulmonary thrombectomy and thrombolysis therapy were effective and a Greenfield filter was inserted into the inferior vena cava to prevent recurrence.
2.In Situ Reconstruction with a Rifampicin-Bonded Gelatin-Sealed Dacron Graft for Pseudoaneurysm after Root Replacement
Wataru Kato ; Kazuyoshi Tajima ; Sachie Terasawa ; Keisuke Tanaka ; Jinnichi Iwase ; Akinori Io
Japanese Journal of Cardiovascular Surgery 2005;34(6):422-424
A 58-year-old man underwent aortic root replacement for annuloaortic ectasia (AAE) and aortic regurgitation (AR). The patient was readmitted because of chest discomfort 3 months after the first operation. Computed tomography showed a pseudoaneurysm of the ascending aorta. Re-aortic root replacement was done on an emergency basis. However, 16 days after the second operation, a pseudoaneurysm was revealed by computed tomography. The third operation was successfully performed using a rif ampicin-bonded gelatin-sealed Dacron graft (GELSEAL®; Sulzer Vascutek, Glasgow, UK). The postoperative course was uneventful.
3.Surgical anatomy of the common iliac veins during para-aortic and pelvic lymphadenectomy for gynecologic cancer.
Kazuyoshi KATO ; Shinichi TATE ; Kyoko NISHIKIMI ; Makio SHOZU
Journal of Gynecologic Oncology 2014;25(1):64-69
OBJECTIVE: Compression of the left common iliac vein between the right common iliac artery and the vertebrae is known to be associated with the occurrence of left iliofemoral deep vein thrombosis (DVT). In this study, we described the variability in vascular anatomy of the common iliac veins and evaluated the relationship between the degree of iliac vein compression and the presence of DVT using the data from surgeries for gynecologic cancer. METHODS: The anatomical variations and the degrees of iliac vein compression were determined in 119 patients who underwent systematic para-aortic and pelvic lymphadenectomy during surgery for primary gynecologic cancer. Their medical records were reviewed with respect to patient-, disease-, and surgery-related data. RESULTS: The degrees of common iliac vein compression were classified into three grades: grade A (n=28, 23.5%), with a calculated percentage of 0%-25% compression; grade B (n=47, 39.5%), with a calculated percentage of 26%-50% compression; and grade C (n=44, 37%), with a calculated percentage of more than 50% compression. Seven patients (5.9%) had common iliac veins with anomalous anatomies; three were divided into small caliber vessels, two with a flattened structure, and two had double inferior vena cavae. The presence of DVT was associated with the elevated D-dimer levels but not with the degree of iliac vein compression in this series. CONCLUSION: Although severe compression of the common iliac veins was frequently observed, the degree of compression might not be associated with DVT in surgical patients with gynecologic cancer. Anomalous anatomies of common iliac veins should be considered during systematic para-aortic and pelvic lymphadenectomy in the gynecologic cancer patients.
Humans
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Iliac Artery
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Iliac Vein*
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Lymph Node Excision*
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Medical Records
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Spine
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Vena Cava, Inferior
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Venous Thrombosis
4.Coronary Artery Bypass Grafting through Thoracoabdominal Spiral Incision in a Patient with Tracheotomy and Severe Obesity
Makoto Hibino ; Kazuyoshi Tajima ; Yoshiyuki Takami ; Ken-ichiro Uchida ; Kei Fujii ; Noritaka Okada ; Wataru Kato ; Yoshimasa Sakai
Japanese Journal of Cardiovascular Surgery 2013;42(1):54-58
A 60-year-old man with type 2 diabetes mellitus and severe obesity (height 170 cm, weight 160 kg, BMI 55) was admitted to our hospital because of acute inferior wall myocardial infarction due to acute thromboembolism of the right coronary artery (RCA). Because of three-vessel coronary diseases, we planned coronary artery bypass grafting after the medical therapy. The patient was intubated, then suffered congestive heart failure and pneumonia, and had a tracheotomy because of obesity hypoventilation syndrome. When his general condition improved after 14 months of medical therapy, we performed the operation. At that time, his weight had decreased to 107.5 kg, and BMI decreased to 37.2. We decided that tracheotomy was necessary to avoid respiratory complications. We chose a thoracoabdominal spiral incision for 2 reasons. Firstly we needed to avoid wound contamination by the tracheotomy stoma. Secondly we decided that the left internal thoracic artery (LITA) and the right gastroepiploic artery (RGEA) were sufficient for bypass grafts to the left anterior descending artery (LAD), the diagonal branches (D1), the posterolateral artery (PL) and the posterior descending artery (PD). Before the operation, epidural anesthesia was performed for postoperative analgesia to prevent respiratory dysfunction. In the right semi-lateral position at 30°, a 4th intercostal space thoracotomy was performed, and the LITA was harvested. The skin incision was extended to the midline of the abdomen and the RGEA was harvested. The end of the LITA was anastomosed with the free RGEA as I composite and the composite was anastomosed to the LAD, the D1, the 14 PL and the 4 PL without cardiopulmonary bypass. Without any perioperative blood transfusion, the patient was discharged with no perioperative complication, including mediastinitis. With this incision, we achieved secure prevention of wound contamination by the tracheotomy stoma, harvesting of a sufficient length of the LITA and RGEA and good visualization of the anastomotic sites with less cardiac displacement than median sternotomy.
5.Well-trained gynecologic oncologists can perform bowel resection and upper abdominal surgery safely
Kyoko NISHIKIMI ; Shinichi TATE ; Kazuyoshi KATO ; Ayumu MATSUOKA ; Makio SHOZU
Journal of Gynecologic Oncology 2020;31(1):e3-
Objective:
This study was performed to examine the safety of bowel resection and upper abdominal surgery in patients with advanced ovarian cancer performed by gynecologic oncologists after training in a monodisciplinary surgical team.
Methods:
We implemented a monodisciplinary surgical team consisting of specialized gynecologic oncologist for advanced ovarian cancer. In the initial learning period in 65 patients with International Federation of Gynecology and Obstetrics (FIGO) III/IV, a gynecologic oncologist who had a certification as a general surgeon trained 2 other gynecologic oncologists in bowel resection and upper abdominal surgery for 4 years. After the initial learning period, the trained gynecologic oncologists performed surgeries without the certificated general surgeon in 195 patients with FIGO III/IV. The surgical outcomes and perioperative complications during the 2 periods were evaluated.
Results:
The rates of achieving no gross disease after cytoreductive surgery were 80.0% in the initial learning period and 83.6% in the post-learning period (p=0.560). The incidence of anastomotic leakage after rectosigmoid resection, symptomatic pleural effusion or pneumothorax after right diaphragm resection, and pancreatic fistula after splenectomy with distal pancreatectomy in the 2 periods were 2 of 34 (6.0%), 1 of 33 (3.0%), and 3 of 15 (20.0%) patients in the initial learning period, and 12 of 147 (8.2%), 1 of 118 (0.8%), and 11 of 84 (13.1%) patients in the post-learning period, respectively. There were no significant differences between the 2 groups (p=0.270, p=0.440, p=0.520, respectively).
Conclusion
Bowel resection and upper abdominal surgery can be performed safely by gynecologic oncologists.
7.Tailored-dose chemotherapy with gemcitabine and irinotecan in patients with platinum-refractory/resistant ovarian or primary peritoneal cancer: a phase II trial
Shinichi TATE ; Kyoko NISHIKIMI ; Ayumu MATSUOKA ; Satoyo OTSUKA ; Kazuyoshi KATO ; Yutaka TAKAHASHI ; Makio SHOZU
Journal of Gynecologic Oncology 2021;32(1):e8-
Objective:
We investigated the efficacy and toxicity of tailored-dose chemotherapy with gemcitabine and irinotecan for platinum-refractory/resistant ovarian or primary peritoneal cancer.
Methods:
We enrolled patients with ovarian or primary peritoneal cancer who received ≥2 previous chemotherapeutic regimens but developed progressive disease during platinumbased chemotherapy or within 6 months post-treatment. All patients received gemcitabine (500 mg/m 2 ) and irinotecan (50 mg/m 2 ) on days 1 and 8 every 21 days at the starting dose. The dose was increased or decreased by 4 levels in subsequent cycles based on hematological or non-hematological toxicities observed. The primary endpoint was progression-free survival (PFS), and secondary endpoints were disease control rate (DCR), overall survival (OS), and adverse events.
Results:
We investigated 25 patients who received 267 cycles (median 8 cycles/patient) between October 2008 and May 2011. Tailored-dose gemcitabine was administered up to the 5th cycle as follows: 1,000 mg/m 2 in 1 (4%), 750 mg/m 2 in 16 (64%), 500 mg/m 2 in 6 (24%), and 250 mg/m 2 in 2 patients (8%). The median PFS and OS were 6.2 months (95% confidence interval [CI]=2.7–10.7) and 16.8 months (95% CI=9.4–30.7), respectively. The DCR was 76%, and PFS was >6 months in 12 of 25 patients (48%). Grade 3 hematological toxicities included leukopenia (9.4%), neutropenia (11.2%), anemia (9.8%), and thrombocytopenia (1.1%).Grade 3/4 non-hematological toxicities did not occur except for fatigue in one patient.
Conclusions
Tailored-dose chemotherapy with gemcitabine and irinotecan was effective and well tolerated in patients with platinum-refractory/resistant ovarian or primary peritoneal cancer.
8.Microscopic diseases remain in initial disseminated sites after neoadjuvant chemotherapy for stage III/IV ovarian, tubal, and primary peritoneal cancer
Shinichi TATE ; Kyoko NISHIKIMI ; Kazuyoshi KATO ; Ayumu MATSUOKA ; Michiyo KAMBE ; Takako KIYOKAWA ; Makio SHOZU
Journal of Gynecologic Oncology 2020;31(3):e34-
Objective:
This study aimed to evaluate the presence of pathological residual tumor (pRT) in each initial disseminated site after neoadjuvant chemotherapy (NACT) to assess the appropriate surgical margins during interval debulking surgery (IDS) for a favorable prognosis.
Methods:
This prospective descriptive study included patients with stage IIIC–IV epithelial ovarian, fallopian tubal, and peritoneal cancer. One hundred eleven patients underwent diagnostic exploratory laparotomy, and their initial intra-abdominal dissemination statuses were recorded. Any tumor >1 cm in diameter found during the exploratory laparotomy was resected during IDS even if it was macroscopically invisible after NACT. The pRT rate after NACT and negative predictive value (NPV; probability that sites with macroscopically invisible tumors have no pRT) during IDS were assessed in each disseminated site.
Results:
A median of 5 NACT cycles were performed. Sites with a high incidence of pRT and low NPV included the rectosigmoid colon (71.4%, 38.6%), transverse mesentery (70.3%, 50.0%), greater omentum (68.3%, 51.7%), right diaphragm (61.9%, 48.1%), paracolic gutters (61.1%, 50.0%), and vesicouterine pouch (56.6%, 50.0%). Organs/tissues with a high incidence of pRT featured a low NPV. The median progression-free survival and overall survival in this cohort were 27.7 and 71.9 months, respectively.
Conclusion
Even if a disseminated site >1 cm in diameter before NACT is invisible during IDS, microscopic disease remains present within it. The appropriate surgical margins for IDS with a favorable prognosis could be secured by resecting a lesion of >1 cm before NACT even if it is invisible during IDS.
9.Study of upfront surgery versus neoadjuvant chemotherapy followed by interval debulking surgery for patients with stage IIIC and IV ovarian cancer, SGOG SUNNY (SOC-2) trial concept
Rong JIANG ; Jianqing ZHU ; Jae-Weon KIM ; Jihong LIU ; Kazuyoshi KATO ; Hee-Seung KIM ; Yuqin ZHANG ; Ping ZHANG ; Tao ZHU ; Daisuke AOKI ; Aijun YU ; Xiaojun CHEN ; Xipeng WANG ; Ding ZHU ; Wei ZHANG ; Huixun JIA ; Tingyan SHI ; Wen GAO ; Sheng YIN ; Yanling FENG ; Libing XIANG ; Aikou OKAMOTO ; Rongyu ZANG
Journal of Gynecologic Oncology 2020;31(5):e86-
Background:
Two randomized phase III trials (EORTC55971 and CHORUS) showed similar progression-free and overall survival in primary or interval debulking surgery in ovarian cancer, however both studies had limitations with lower rate of complete resection and lack of surgical qualifications for participating centers. There is no consensus on whether neoadjuvant chemotherapy followed by interval debulking surgery (NACT-IDS) could be a preferred approach in the management of advanced epithelial ovarian cancer (EOC) in the clinical practice.
Methods
The Asian SUNNY study is an open-label, multicenter, randomized controlled, phase III trial to compare the effect of primary debulking surgery (PDS) to NACT-IDS in stages IIIC and IV EOC, fallopian tube cancer (FTC) or primary peritoneal carcinoma (PPC).The hypothesis is that PDS enhances the survivorship when compared with NACT-IDS in advanced ovarian cancer. The primary objective is to clarify the role of PDS and NACT-IDS in the treatment of advanced ovarian cancer. Surgical quality assures include at least 50% of no gross residual (NGR) in PDS group in all centers and participating centers should be national cancer centers or designed ovarian cancer section or those with the experience participating surgical trials of ovarian cancer. Any participating center should be monitored evaluating the proportions of NGR by a training set. The aim of the surgery in both arms is maximal cytoreduction. Tumor burden of the disease is evaluated by diagnostic laparoscopy or positron emission tomography/computed tomography scan. Patients assigned to PDS group will undergo upfront maximal cytoreductive surgery within 3 weeks after biopsy, followed by 6 cycles of standard adjuvant chemotherapy. Patients assigned to NACT group will undergo 3 cycles of NACT-IDS, and subsequently 3 cycles of adjuvant chemotherapy. The maximal time interval between IDS and the initiation of adjuvant chemotherapy is 8 weeks. Major inclusion criteria are pathologic confirmed stage IIIC and IV EOC, FTC or PPC; ECOG performance status of 0 to 2; ASA score of 1 to 2. Major exclusion criteria are non-epithelial tumors as well as borderline tumors; low-grade carcinoma; mucinous ovarian cancer. The sample size is 456 subjects. Primary endpoint is overall survival.