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Hayami S, Ueno M, Miyamoto A, Kawai M. Laparoscopic anatomical resection of segment II: left lateral section-flip up method to safely and effectively encircle the Glissonean branch and expose the left hepatic vein (with video). Updates Surg 2024; 76:305-307. [PMID: 37702925 DOI: 10.1007/s13304-023-01629-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/12/2023] [Indexed: 09/14/2023]
Abstract
Laparoscopic anatomical resection of liver segment II (S2 segmentectomy) using left lateral section-flip up method is introduced to safely and effectively encircle the Glissonean branch of segment II (G2) and to expose the left hepatic vein (LHV). The left lateral section is completely mobilized and then flipped up. After encircling and clamping the G2 root, indocyanine green is intravenously injected and the demarcation line is clearly confirmed by near infrared fluorescence imaging. After exposure of the LHV from the root to this intersegmental plane between segments II/III, residual parenchymal resection is performed using the clamp crushing method. There are two difficulties concerning S2 segmentectomy. The first is encirclement of the G2 root without interfering with the G3. Compared with the conventional front view of the umbilical portion, the view behind the left lateral section contribute to easy confirmation and direct encircle of the G2 root without dividing the G3 and injuring LHV on the same plane. The second difficulty is that the boundary of the visible liver surface between segments II/III does not match the direction of the LHV. This can cause confusion to the operator aiming to perform precise inner parenchymal resection. Our procedure allows easy access to the LHV root and exposure of the peripheral directing hepatic vein. Hepatic vein-guided approaches will likely be helpful in precise performance of inner parts of liver resection.
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Affiliation(s)
- Shinya Hayami
- Second Department of Surgery, School of Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama, 641-8510, Japan.
| | - Masaki Ueno
- Second Department of Surgery, School of Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama, 641-8510, Japan
| | - Atsushi Miyamoto
- Second Department of Surgery, School of Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama, 641-8510, Japan
| | - Manabu Kawai
- Second Department of Surgery, School of Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama, 641-8510, Japan
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Urade T, Kido M, Kuramitsu K, Komatsu S, Gon H, Fukushima K, So S, Mizumoto T, Nanno Y, Tsugawa D, Goto T, Asari S, Yanagimoto H, Toyama H, Ajiki T, Fukumoto T. Standardization of laparoscopic anatomic liver resection of segment 2 by the Glissonean approach. Surg Endosc 2022; 36:8600-8606. [PMID: 36123546 DOI: 10.1007/s00464-022-09613-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 09/03/2022] [Indexed: 01/06/2023]
Abstract
BACKGROUND Anatomic liver resection (ALR) has been established to eliminate the tumor-bearing hepatic region with preservation of the remnant liver volume for liver malignancies. Recently, laparoscopic ALR has been widely applied; however, there are few reports on laparoscopic segmentectomy 2. This study aimed to present the standardization of laparoscopic segmentectomy 2 with surgical outcomes. METHODS This study included seven patients who underwent pure laparoscopic segmentectomy 2 by the Glissonean approach from January 2020 to December 2021. Four of them had hepatocellular carcinoma, two had colorectal liver metastasis, and one had hepatic angiomyolipoma, which was preoperatively diagnosed with hepatocellular carcinoma. In all patients, preoperative three-dimensional (3D) simulation images from dynamic CT were reconstructed using a 3D workstation. The layer between the hepatic parenchyma and the Glissonean pedicle of segment 2 (G2) was dissected to encircle the root of G2. After clamping or ligation of the G2, 2.5 mg of indocyanine green was injected intravenously to identify the boundaries between segments 2 and 3 with a negative staining method under near-infrared light. Parenchymal transection was performed from the caudal side to the cranial side according to the demarcation on the liver surface, and the left hepatic vein was exposed on the cut surface if possible. RESULTS The mean operative time for all patients was 281 min. The mean blood loss was 37 mL, and no transfusion was necessary. Estimated liver resection volumes significantly correlated with actual liver resection volumes (r = 0.61, P = 0.035). After the operation, one patient presented with asymptomatic deep venous and pulmonary thrombosis, which was treated with anticoagulant therapy. The mean length of hospital stay was 8.9 days. CONCLUSION Laparoscopic segmentectomy 2 by the Glissonean approach is a feasible and safe procedure with the preservation of the nontumor-bearing segment 3 for liver tumors in segment 2.
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Affiliation(s)
- Takeshi Urade
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
| | - Masahiro Kido
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Kaori Kuramitsu
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Shohei Komatsu
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Hidetoshi Gon
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Kenji Fukushima
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Shinichi So
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Takuya Mizumoto
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Yoshihide Nanno
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Daisuke Tsugawa
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Tadahiro Goto
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Sadaki Asari
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Hiroaki Yanagimoto
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Hirochika Toyama
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Tetsuo Ajiki
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Takumi Fukumoto
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
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Lee B, Choi Y, Cho JY, Yoon YS, Han HS. Initial experience with a robotic hepatectomy program at a high-volume laparoscopic center: single-center experience and surgical tips. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1132. [PMID: 34430573 PMCID: PMC8350693 DOI: 10.21037/atm-21-202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 05/23/2021] [Indexed: 01/16/2023]
Abstract
Background Despite the development of laparoscopic surgery, there are still inherent limitations associated with conventional laparoscopic instruments such as restrictions in movement and an inability for articulation. Robotic surgery may help to overcome the limitations of conventional laparoscopic surgery. The aim of this study was to present our initial experience with robotic hepatectomy (RH) and discuss the steps required to develop an RH program at a high-volume laparoscopic hepatectomy (LH) center. Methods We retrospectively reviewed prospectively collected data for 14 consecutive patients who underwent RH between 2017 and 2018. Clinicopathological characteristics and perioperative outcomes were compared with those reported in previous studies. The operation time of each procedure was analyzed to assess RH proficiency based on experience. Results Of the 14 patients, 12 patients (85.7%) underwent robotic major hepatectomy. Median patient age was 54.5 years, while median body mass index (BMI) was 25.2 kg/m2. The median operation time was 360 (range: 145–544) min. The median estimated blood loss (EBL) was 300 (range: 50–1,400) mL. Conversion to open surgery was not required in any case. The median length of hospital stay was 5 (range: 4–14) days. Major complications occurred in 2 patients (14.2%), although both recovered without sequelae. The time required for hilar dissection, docking, and parenchymal transection gradually decreased after the first two cases of RH. Conclusions From our initial experience, RH might be considered as a feasible procedure in the liver resection, even in major hepatectomy. In addition, surgeons with sufficient experience in LH could rapidly adapt for RH. However, we have to make a system for education and monitoring of this innovative surgery for the patients’ safety.
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Affiliation(s)
- Boram Lee
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - YoungRok Choi
- Department of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Jai Young Cho
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Yoo-Seok Yoon
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Ho-Seong Han
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Korea
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Timing for Introduction of Total Laparoscopic Living Donor Right Hepatectomy; Initial Experience Based on the Data of Laparoscopic Major Hepatectomy. Transplantation 2021; 105:1273-1279. [PMID: 32511151 DOI: 10.1097/tp.0000000000003344] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND This study evaluated the timing of safe introduction of total laparoscopic donor right hepatectomy (TLDRH) based on outcomes of laparoscopic major hepatectomy (LMH). METHODS The data of 1013 consecutive patients who underwent laparoscopic liver resection from 2003 to 2017 were reviewed; the cumulative sum method was used to evaluate the learning curve of LMH. Patients were divided into 3 groups according to the timing of introduction of TLDRH (since 2010) and learning curve of LMH. Surgical outcomes of LMH and TLDRH were evaluated. RESULTS Cumulative sum analysis demonstrated a learning curve of approximately 73 cases of LMH. In phase I (before the introduction of TLDRH, 2003-2009), 38 cases of LMH were performed. Phase II (after the introduction of TLDRH until learning curve of LMH, 2010-2014), 35 and 15 cases of LMH and TLDRH were performed, respectively. Phase III (after learning curve of LMH until 2017, 2014-2017), 59 and 20 cases of LMH and TLDRH were performed, respectively. In cases of LMH, there was significant improvement in the operation time 398.9 ± 140.9 versus 403.7 ± 165.2 versus 265.5 ± 91.7; P < 0.001), estimated blood loss (1122.9 ± 1460.2 versus 1209.3 ± 1409.1 versus 359.8 ± 268.8; P < 0.001), and open conversion rate (26.3% versus 22.9% versus 13.6%; P = 0.026) between phases I versus II versus III. In cases of TLDRH, the operation time (567.8 ± 117.9 versus 344.2 ± 71.8; P < 0.001), estimated blood loss (800.7 ± 514.8 versus 439.4 ± 347.0; P = 0.004), and hospital stay (12.5 ± 4.36 versus 9.15 ± 4.84; P = 0.025) significantly improved in phase III. CONCLUSIONS Overcoming the learning curve of LMH before starting TLDRH is advisable to ensure donor's surgical outcomes.
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Ho KM, Cheng KC, Chan FKM, Yeung YP. Laparoscopic hepatectomy versus open hepatectomy for hepatocellular carcinoma: A propensity case-matched analysis of the long-term survival. Ann Hepatobiliary Pancreat Surg 2021; 25:1-7. [PMID: 33649248 PMCID: PMC7952667 DOI: 10.14701/ahbps.2021.25.1.1] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 07/12/2020] [Accepted: 07/13/2020] [Indexed: 12/17/2022] Open
Abstract
Backgrounds/Aims Despite the widespread popularity of laparoscopic surgery, laparoscopic liver resection (LLR) remains in evolution. This study aimed to compare the long-term outcomes for patients undergoing laparoscopic versus open hepatectomy for hepatocellular carcinoma (HCC) ≤7 cm. Methods Patients diagnosed with HCC treated by hepatectomy from October 2000 to May 2019 were included. Excluding tumors larger than 7 cm, 1:2 propensity score matching was performed between laparoscopic and open hepatectomies. The perioperative outcomes, 5-year overall survival (OS) and disease-free survival (DFS) of the two groups were compared. Results Forty-five patients who underwent LLR were matched to 90 open hepatectomy (OH) during the same period. LLR group had shorter median hospital stay (5 days vs. 9 days, p=0.00) but required longer operative time (326.0 minutes vs. 272.5 minutes, p=0.018) than the OH group. The 5-year overall survival was better in the LLR group (84.9% vs. 61.1%; p=0.036), though there was no significant difference in the 5-year disease free survival (20.0% vs. 22.2%, p=0.613). The rate of R0 resection was comparable between the 2 groups with a slightly better margin distance in the LLR (5 mm vs. 3 mm, p=0.043). Conclusions Laparoscopic liver resection is safe and feasible for cirrhotic patients with HCC size up to 7 cm. It has better short-term outcomes and comparable perioperative blood loss and complication rates. The resection margin is not jeopardized and the 5-year overall and disease-free survivals are comparable with the open group.
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Affiliation(s)
- Kit-Man Ho
- Department of Surgery, Kwong Wah Hospital, Hong Kong, China
| | - Kai-Chi Cheng
- Department of Surgery, Kwong Wah Hospital, Hong Kong, China
| | | | - Yuk-Pang Yeung
- Department of Surgery, Kwong Wah Hospital, Hong Kong, China
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Yamane H, Yoshida S, Yoshida T, Nishi M, Yamagishi T, Goto H, Otsubo D, Furutani A, Matsumoto T, Fujino Y, Tominaga M. Laparoscopic anatomical segment 3 segmentectomy for hepatocellular carcinoma accompanied by hypoplasia of the right hepatic lobe. J Surg Case Rep 2019; 2019:rjz213. [PMID: 31308931 PMCID: PMC6619407 DOI: 10.1093/jscr/rjz213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 06/16/2019] [Indexed: 11/12/2022] Open
Abstract
We report a case of laparoscopic anatomical segment 3 segmentectomy for hepatocellular carcinoma (HCC) accompanied by hypoplasia of the right hepatic lobe. An 80-year-old man was admitted with a suspicion of HCC diagnosed by computed tomography during follow-up for thyroid cancer. Dynamic computed tomography showed 40-mm HCC in segment 3 and hypoplasia of the right hepatic lobe with the Chilaiditi sign. We performed laparoscopic anatomical segment 3 segmentectomy. There were no postoperative complications, and the patient was discharged 6 days postoperatively. This procedure can be performed safely and is technically feasible, but special attention should be paid to anatomical alterations to avoid fatal surgical complications.
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Affiliation(s)
- Hisoka Yamane
- Division of Gastroenterological Surgery, Hyogo Cancer Center, Hyogo, Japan
| | - Sachiko Yoshida
- Division of Gastroenterological Surgery, Hyogo Cancer Center, Hyogo, Japan
| | - Toshihiko Yoshida
- Division of Gastroenterological Surgery, Hyogo Cancer Center, Hyogo, Japan
| | - Masayasu Nishi
- Division of Gastroenterological Surgery, Hyogo Cancer Center, Hyogo, Japan
| | - Takashi Yamagishi
- Division of Gastroenterological Surgery, Hyogo Cancer Center, Hyogo, Japan
| | - Hironobu Goto
- Division of Gastroenterological Surgery, Hyogo Cancer Center, Hyogo, Japan
| | - Dai Otsubo
- Division of Gastroenterological Surgery, Hyogo Cancer Center, Hyogo, Japan
| | - Akinobu Furutani
- Division of Gastroenterological Surgery, Hyogo Cancer Center, Hyogo, Japan
| | - Taku Matsumoto
- Division of Gastroenterological Surgery, Hyogo Cancer Center, Hyogo, Japan
| | - Yasuhiro Fujino
- Division of Gastroenterological Surgery, Hyogo Cancer Center, Hyogo, Japan
| | - Masahiro Tominaga
- Division of Gastroenterological Surgery, Hyogo Cancer Center, Hyogo, Japan
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Laparoscopic Anatomic Spiegel Lobectomy With the Extrahepatic Glissonean Approach. Surg Laparosc Endosc Percutan Tech 2019; 29:e57-e59. [PMID: 30855400 DOI: 10.1097/sle.0000000000000654] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
BACKGROUND Laparoscopic Spiegel lobectomy is difficult due to its deep location and being surrounded by gross vessels. Extrahepatic Glissonean pedicle transection method has been proposed by Takasaki during open liver resections. This approach can be successfully performed during laparoscopic anatomic hepatectomy. Here we describe pure laparoscopic Spiegel lobectomy using the extrahepatic Glissonean approach. METHODS The patient was a 25-year-old male with a background of hepatitis B. A 1.5 cm×1.7 cm mass was detected in liver Spiegel lobe and highly suspected to be an hepatocellular carcinoma. The liver function was normal (Child-pugh 5), and alpha-fetoprotein was within the normal ranges. Laparoscopic Spiegel lobectomy using extrahepatic Glissonean approach was proposed. The hilar plate was partly detached from liver parenchyma, and 2 Glissonean pedicles of the Spiegel lobe were dissected, clamped and divided. Liver parenchymal transection was performed using the harmonic scalpel. RESULTS The operation time was 196 minutes without Pringle's maneuver. Estimated blood loss was <50 mL, and no blood transfusion was required. The patient recovered well and was discharged on postoperative day 6. There was no complication. Pathologic findings support the diagnosis of hepatocellular carcinoma. CONCLUSIONS Laparoscopic Spiegel lobectomy using the extrahepatic Glissonean approach is safe and feasible.
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Cho JY, Han HS, Wakabayashi G, Soubrane O, Geller D, O'Rourke N, Buell J, Cherqui D. Practical guidelines for performing laparoscopic liver resection based on the second international laparoscopic liver consensus conference. Surg Oncol 2018; 27:A5-A9. [DOI: 10.1016/j.suronc.2017.12.003] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 12/28/2017] [Indexed: 02/06/2023]
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Updates and Critical Insights on Glissonian Approach in Liver Surgery. J Gastrointest Surg 2018; 22:154-163. [PMID: 29101722 DOI: 10.1007/s11605-017-3613-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 10/17/2017] [Indexed: 01/31/2023]
Abstract
Recent advances in surgical techniques have broadened the indications of surgical management of liver malignancies. Intraoperative bleeding is one of the known predictors of postoperative outcomes following liver surgery, signifying the importance of vascular control during liver resection. Furthermore, preservation of future liver remnant plays a critical role in prevention of post-hepatectomy liver failure as one of the main causes of postoperative morbidity and mortality. Glissonian approach liver resection offers an effective method for vascular inflow control while protecting future liver remnant from ischemia-reperfusion injury. Several studies have demonstrated the feasibility of Glisson's pedicle resection technique in modern liver surgery with an acceptable safety profile. Moreover, with increasing popularity of minimally invasive surgery, laparoscopic liver resection via Glissonian approach has been shown to be superior to standard laparoscopic hepatectomy. Herein, we systematically review the role of Glissonian approach hepatectomy in current practice of liver surgery, highlighting its advantages and disadvantaged over other methods of vascular control.
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Yoon SY, Lee CM, Song TJ, Han HJ, Kim S. A new fluorescence imaging technique for visualizing hepatobiliary structures using sodium fluorescein: result of a preclinical study in a rat model. Surg Endosc 2017; 32:2076-2083. [PMID: 29067576 DOI: 10.1007/s00464-017-5904-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 09/17/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND Near-infrared fluorescence imaging has been recently applied in the field of hepatobiliary surgery. Our objective was to apply blue light fluorescence imaging to cholangiography and liver mapping during laparoscopic surgery. Therefore, we designed a preclinical study to evaluate the feasibility of using blue light fluorescence for cholangiography and liver mapping in a rat model. METHODS Sodium fluorescein solution (1 mL to each individual) were administered intravenously to 20 male Sprague-Dawley rats (6 weeks old, 200-250 g), after laparotomy. Whole abdominal organs were observed under blue light (at a wavelength of 440-490 nm) emitted from a commercialized LED curing light. RESULTS Immediately after the tracer solution was administered into the circulatory system of the rat, it was possible to visualize the location of the kidneys and the bile duct under blue light emitted from the light source. The liver was vaguely stained green by the tracer, while the ureters were not. After establishing biliary retention via duct clamping in the left lateral segment of the liver, the green color of the segment became distinct by the tracer, which showed vague coloration following release of the clamp. CONCLUSION We established the preclinical basis for using blue light fluorescence cholangiography and liver mapping in this study. The clinical feasibility of these techniques during laparoscopic cholecystectomy and hepatectomy remained to be demonstrated.
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Affiliation(s)
- Sam-Youl Yoon
- Department of Surgery, Korea University College of Medicine, Seoul, South Korea.,Department of Surgery, Korea University Medical Center Ansan Hospital, Ansan, Gyeonggi-do, South Korea.,Department of Surgery, Hallym University Medical Center, Anyang, Gyeonggi-do, South Korea
| | - Chang Min Lee
- Department of Surgery, Korea University College of Medicine, Seoul, South Korea. .,Department of Surgery, Korea University Medical Center Ansan Hospital, Ansan, Gyeonggi-do, South Korea.
| | - Tae-Jin Song
- Department of Surgery, Korea University College of Medicine, Seoul, South Korea.,Department of Surgery, Korea University Medical Center Ansan Hospital, Ansan, Gyeonggi-do, South Korea
| | - Hyung Joon Han
- Department of Surgery, Korea University College of Medicine, Seoul, South Korea.,Department of Surgery, Korea University Medical Center Ansan Hospital, Ansan, Gyeonggi-do, South Korea
| | - Seonghan Kim
- Department of Anatomy, Inje University College of Medicine, Busan, South Korea
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