1.Medial-to-lateral approach for laparoscopic right hepatectomy of the remnant liver: a safe technique for patients with a history of posterior segment resection (with video)
Hidetoshi GON ; Tadahiro GOTO ; Michihiko YOSHIDA ; Yuki AZUMI ; Kae KATSUMOTO ; Ryuju KAWASHIMA ; Yu KITAMURA ; Shunji NAKAYAMA ; Daisuke KURODA ; Yonson KU
Journal of Minimally Invasive Surgery 2026;29(2):86-89
Laparoscopic repeat hepatectomy (LRH) remains challenging when initial resection sites overlap with target areas. We report a safe surgical approach for LRH of the remnant right liver after prior posterior segment resection. An 83-year-old female with recurrent intrahepatic cholangiocarcinoma in segment 5, following segmentectomy 6, required right hepatectomy.Due to dense adhesions in the posterior segment making right lobe mobilization, including dissection around the inferior vena cava (IVC), difficult, we employed a medial-to-lateral approach for LRH. We initially performed parenchymal transection to expose the ventral side of the IVC, followed by a medial-to-lateral dissection around the IVC under a favorable operative field. Operative time was 469 minutes with 160 mL blood loss. The patient was discharged on postoperative day 17 without complications. In LRH after posterior segment resection, a medial-to-lateral approach using the parenchymal transection-first technique is effective for minimizing risks of collateral injury during right hepatectomy.
2.Effects of low-carbohydrate diet and resistance exercise training on physical characteristics and concentrations of plasma metabolites and hormones
Sho ITO ; Yasuaki KARASAWA ; Daisuke HOSHINO ; Masashi FUJII ; Miki ETO ; Junya TSURU ; Chieko KASHIWADO ; Shinya KURODA
Japanese Journal of Physical Fitness and Sports Medicine 2019;68(3):223-227
We clarify the effect of combination of low-carbohydrate diet and resistance exercise training on physical characteristics and plasma concentrations of metabolites and hormones in humans. Intervention of low-carbohydrate diet and resistance exercise training were performed on 7 healthy men and 3 women (age 39.6 ± 7.0 year; BMI 25.1 ± 3.6 kg/m2) for 8 - 12 weeks. Physical characteristics and 106 test items including and blood concentrations of metabolites and hormones were measured before and after the intervention. The effects of intervention were analyzed by a paired t-test, in which multiple testing was corrected by the method of Storey (significant variation q <0.1). In both men and women, carbohydrate and energy intake per day were low, and protein intake per day was almost the same as the recommended dietary allowance. Because carbohydrate intake were limited (174 kcal), resulting in reduction of total energy (1186 kcal). After the intervention, body weight, BMI (Body Mass Index), fat mass, body fat, muscle mass and body water content significantly decreased, while muscle mass per body mass significantly increased. Glycine, 3-methyl histidine, inorganic phosphorous, urea nitrogen, urea nitrogen per creatinine, were significantly increased, while HbA1c, white blood cell count, β-aminoisobutyric acid, adrenalin, free T4, blood ammonia, γGTP, cholinesterase, and leptin were decreased.
3.Abdominal Vacuum-Assisted Closure for Secondary Abdominal Fascial Closure into Open Abdomen after Surgical Repair for Ruptured Abdominal Aortic Aneurysm
Daisuke WATANABE ; Tetsuro UCHIDA ; Azumi HAMASAKI ; Yoshinori KURODA ; Eiichi OBA ; Atsushi YAMASHITA ; Jun HAYASHI ; Ai TAKAHASHI ; Shingo NAKAI ; Mitsuaki SADAHIRO
Japanese Journal of Cardiovascular Surgery 2018;47(1):36-39
Secondary abdominal fascial closure by abdominal vacuum-assisted closure (VAC) therapy is required for abdominal organ protection and prevention of infection due to abdominal compartment syndrome (ACS) developing after the surgery. In this paper, we present our experience with abdominal VAC therapy for two cases that required open abdominal management after surgical repair for ruptured abdominal aortic aneurysm, with favorable outcomes. Case 1 involved a 72-year-old man who underwent endovascular aortic repair for ruptured abdominal aortic aneurysm. Abdominal VAC therapy was started after decompression laparotomy because he developed ACS immediately after surgery. Secondary abdominal fascial closure was performed on day 4 postoperatively, and he had no complications. Case 2 involved a 71-year-old man who underwent emergency Y-graft replacement for ruptured abdominal aortic aneurysm. We considered secondary abdominal fascial closure necessary because of prominent intestinal edema and massive retroperitoneal hematoma, and performed abdominal VAC therapy. We changed the VAC system on day 4, postoperatively and performed secondary abdominal fascial closure on day 7, postoperatively. Abdominal VAC therapy is considered effective and safe for patients requiring secondary abdominal fascial closure after abdominal surgery.
4.Aortic Arch Aneurysm 7 Years after Aortic Root Replacement in a Patient of Loeys-Dietz Syndrome
Jun Hayashi ; Seigo Gomi ; Tetsuro Uchida ; Azumi Hamasaki ; Yoshinori Kuroda ; Atsushi Yamashita ; Ken Nakamura ; Daisuke Watanabe ; Shingo Nakai ; Akihiro Kobayashi ; Mitsuaki Sadahiro
Japanese Journal of Cardiovascular Surgery 2017;46(4):157-160
A 14-year-old women who had a history of aortic root replacement at 7 years old admitted our hospital due to dilatation of aortic arch aneurysm. Loeys-Dietz syndrome was diagnosed when she was 10 years old. Computed tomography showed 70 mm proximal arch aneurysm. Operative findings revealed brachiocephalic artery and left common carotid artery branched from aneurysm. Partial arch replacement was performed and distal anastomosis was made between left common carotid artery and left subclavian artery. Close observation by CT regularly is necessary and undergo aortic repair not to miss the timing of surgery.


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