1.Retroperitoneal Approach to Abdominal Aortic Aneurysms.
Takeshi NISHINA ; Hitoshi OKABAYASHI ; Ichirou SHIMADA ; Sakae ENOMOTO ; Nobuhisa OONO ; Kenji MINATOYA ; Takayuki KAMEYAMA ; Tadaomi MIYAMOTO
Japanese Journal of Cardiovascular Surgery 1993;22(4):319-321
To evaluate the efficacy of the retroperitoneal approach (RP) when compared with the transperitoneal approach (TP) in elective aortoiliac reconstruction, 41 cases were reviewed. From February 1987 through October 1991, 16 patients underwent aortoiliac reconstruction through the TP approach and 25 patients underwent operation through the RP approach for abdominal aortic aneurysms (AAA). The TP approach was associated with larger intraoperative blood loss (648.6±416.5ml) when compared with the RP approach (357.7±208.9ml) (p<0.01). The TP approach was associated with greater intraoperative blood transfusion (2093.8±1179.0ml) when compared with the RP approach (1010.4±905.3ml) (p<0.01). Both groups had similar operative times. Postoperative initiation of oral water intake was prolonged in the TP group (50.2±27.4hr) when compared with the RP group (22.3±8.9hr) (p<0.01). Postoperative initiation of walking training was prolonged in the TP group (88.7±37.1hr) when compared with the RP group (60.1±23.2) (p<0.01). This experience demonstrates that the RP approach is a preferable alternative to the TP approach in elective aortoiliac reconstruction.
2.Long-term Results with 90 Composite Graft Replacements of the Ascending Aorta and Aortic Valve.
Sakae Enomoto ; Tadaomi Miyamoto ; Hitoshi Okabayashi ; Ichiro Shimada ; Nobuhisa Ohno ; Takeshi Nishina ; Kenji Minatoya ; Takayuki Kameyama ; Toshihiko Ban
Japanese Journal of Cardiovascular Surgery 1994;23(6):399-403
From May 1975 to August 1991, 90 patients (56 males and 34 females) underwent Bentall's operations or its modified technique. In our modified technique the coronary ostium is cut out like a button and anastomosed to the aortic graft and aortic grafts are not wrapped by the aortic wall. Preoperative diagnoses were AAE (25 patients, 28%), Stanford type A dissection (19, 21%), Marfan's syndrome (16, 18%), aortitis syndrome (12, 13%), AR+ascending aortic aneurysm (6, 7%), syphilitic aortitis (5, 6%), AS+ascending aortic aneurysm (3, 3%), Valsalva's sinus aneurysm (2, 2%) and other diseases (2, 2%). The hospital mortality rate was 17% (15/90) for all cases. The hospital mortality for aortic dissection (37% (7/19)) and reoperation cases (75% (3/4)) were very high. There were 10 cases of late death and the 10 year actuarial survival rate was 66.3%. Among 11 cardiovascular events which occured in the late phase, 5 were dissection at other aortic sites in the type A dissection and Marfan syndrome cases, and 3 were pseudoaneurysm formation at the site of coronary or the aortic anastomosis in the aortitis syndrome cases, and a detachment of the composite graft in the Marfan's syndrome cases. The 10-year event-free rate was 92.0% for non-specific AAE, 68.8% for aortitis syndrome, 61.9% for Marfan's syndrome and 47.3% for Stanford type A dissection. Non-specific AAE had excellent long-term results, but Marfan's syndrome and dissection had poor results. The button technique for coronary reconstruction is effective for all cases and its long term results are good, but, even with this technique, coronary pseudo-aneurysm occured in cases of aortitis syndrome.
3.Comparison of the oncological outcomes of stenting as a bridge to surgery and surgery alone in stages II to III obstructive colorectal cancer: a retrospective study
Hiroaki UEHARA ; Toshiyuki YAMAZAKI ; Akira IWAYA ; Hitoshi KAMEYAMA ; Masaru KOMATSU ; Motoharu HIRAI
Annals of Coloproctology 2022;38(3):235-243
Purpose:
We evaluated the oncological outcomes of bridge to surgery (BTS) using stent compared with surgery alone for obstructive colorectal cancer.
Methods:
Consecutive patients who underwent curative resection for stages II to III obstructive colorectal cancer at our institution from January 2009 to March 2020, were registered retrospectively and divided into 43 patients in the BTS group and 65 patients in the surgery alone group. We compared the surgical and oncological outcomes between the 2 groups.
Results:
Stent-related perforation did not occur. One patient in whom the stent placement was unsuccessful underwent emergency surgery with poor decompression (clinical success rate, 97.7%). The pathological characteristics were not significantly different between the groups. The following surgical outcomes in the BTS group were superior to those in the surgery alone group; nonemergency surgery (P<0.001), surgical approach (P=0.006), and length of hospital stay (P=0.020). The median follow-up time was 44.9 months (range, 1.1–126.5 months). The 3-year relapse-free survival rates were 68.4% and 58.2% (P=0.411), and the overall survival rates were 78.3% and 88.2% (P=0.255) in the surgery alone and BTS groups, respectively. The 3-year locoregional recurrence rates were 10.2% and 8.0% (P=0.948), and distant metastatic recurrence rates were 13.3% and 30.4% (P=0.035) in the surgery alone and BTS groups, respectively.
Conclusion
This study revealed that BTS with stent may be associated with a higher frequency of distant metastatic recurrence. Stent for stages II to III obstructive colorectal cancer potentially worsens oncological outcomes.
4.Small Bowel Obstruction After Ileal Pouch-Anal Anastomosis With a Loop Ileostomy in Patients With Ulcerative Colitis.
Hitoshi KAMEYAMA ; Yoshifumi HASHIMOTO ; Yoshifumi SHIMADA ; Saki YAMADA ; Ryoma YAGI ; Yosuke TAJIMA ; Takuma OKAMURA ; Masato NAKANO ; Kohei MIURA ; Masayuki NAGAHASHI ; Jun SAKATA ; Takashi KOBAYASHI ; Shin ichi KOSUGI ; Toshifumi WAKAI
Annals of Coloproctology 2018;34(2):94-100
PURPOSE: Small bowel obstruction (SBO) remains a common complication after pelvic or abdominal surgery. However, the risk factors for SBO in ulcerative colitis (UC) surgery are not well known. The aim of the present study was to clarify the risk factors associated with SBO after ileal pouch-anal anastomosis (IPAA) with a loop ileostomy for patients with UC. METHODS: The medical records of 96 patients who underwent IPAA for UC between 1999 and 2011 were reviewed. SBO was confirmed based on the presence of clinical symptoms and radiographic findings. The patients were divided into 2 groups: the SBO group and the non-SBO group. We also analyzed the relationship between SBO and computed tomography (CT) scan image parameters. RESULTS: The study included 49 male and 47 female patients. The median age was 35.5 years (range, 14–72 years). We performed a 2- or 3-stage procedure as a total proctocolectomy and IPAA for patients with UC. SBO in the pretakedown of the loop ileostomy after IPAA occurred in 22 patients (22.9%). Moreover, surgical intervention for SBO was required for 11 patients. In brief, closure of the loop ileostomy was performed earlier than expected. A multivariate logistic regression analysis revealed that the 2-stage procedure (odds ratio, 2.850; 95% confidence interval, 1.009–8.044; P = 0.048) was a significant independent risk factor associated with SBO. CT scan image parameters were not significant risk factors of SBO. CONCLUSION: The present study suggests that a 2-stage procedure is a significant risk factor associated with SBO after IPAA in patients with UC.
Colitis, Ulcerative*
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Female
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Humans
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Ileostomy*
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Logistic Models
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Male
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Medical Records
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Risk Factors
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Tomography, X-Ray Computed
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Ulcer*