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Sakamoto A, Ogawa K, Shine M, Nishi Y, Nagaoka T, Honjo M, Tamura K, Sakamoto K, Funamizu N, Takada Y. Impact of tumor proximity to vessel on conversion in laparoscopic liver resection: A retrospective cohort study. JOURNAL OF HEPATO-BILIARY-PANCREATIC SCIENCES 2024; 31:437-445. [PMID: 38824411 DOI: 10.1002/jhbp.12001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2024]
Abstract
BACKGROUND Although various difficulty scoring systems have been proposed for laparoscopic liver resection (LLR), details remain uncertain regarding distance between the tumor and vessels as a factor of difficulty. We aimed to examine the risk factors for conversion to open hepatectomy in LLR, including distance between tumor and vessels. METHODS Between January 2012 and December 2022, 118 patients who underwent LLR were retrospectively enrolled and their perioperative characteristics were evaluated. RESULTS A total of 10 cases (8.5%) were converted to open hepatectomy during LLR. The conversion group had lower platelet count, shorter distance between the tumor and a medium vessel (defined as diameter of 5-10 mm), and greater tumor depth compared with the pure LLR group. Receiver-operating characteristic curve analysis identified 10 mm as the optimal cutoff value of tumor proximity to a medium vessel (sensitivity, 80.0%, specificity, 78.7%, AUC 0.817) for predicting conversion. In multivariate analysis, lower platelet count (p = .028) and tumor proximity within 10 mm to a medium vessel (p = .001) were independent risk factors for conversion in LLR. CONCLUSIONS Our study suggests tumor proximity within 10 mm to a medium vessel and lower platelet count as predictors of unfavorable intraoperative conversion in LLR.
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Affiliation(s)
- Akimasa Sakamoto
- Department of Hepato-Biliary-Pancreatic and Breast Surgery, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Kohei Ogawa
- Department of Hepato-Biliary-Pancreatic and Breast Surgery, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Mikiya Shine
- Department of Hepato-Biliary-Pancreatic and Breast Surgery, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Yusuke Nishi
- Department of Hepato-Biliary-Pancreatic and Breast Surgery, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Tomoyuki Nagaoka
- Department of Hepato-Biliary-Pancreatic and Breast Surgery, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Masahiko Honjo
- Department of Hepato-Biliary-Pancreatic and Breast Surgery, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Kei Tamura
- Department of Hepato-Biliary-Pancreatic and Breast Surgery, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Katsunori Sakamoto
- Department of Hepato-Biliary-Pancreatic and Breast Surgery, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Naotake Funamizu
- Department of Hepato-Biliary-Pancreatic and Breast Surgery, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Yasutsugu Takada
- Department of Hepato-Biliary-Pancreatic and Breast Surgery, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
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Gudmundsdottir H, Fiorentini G, Essaji Y, D'Souza D, Torres-Ruiz T, Geller DA, Helton WS, Hogg ME, Iannitti DA, Kamath AS, Onkendi EO, Serrano PE, Simo KA, Sucandy I, Warner SG, Alseidi A, Cleary SP. Circumstances and implications of conversion from minimally invasive to open liver resection: a multi-center analysis from the AMILES registry. Surg Endosc 2023; 37:9201-9207. [PMID: 37845532 DOI: 10.1007/s00464-023-10431-0] [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] [Received: 05/04/2023] [Accepted: 08/31/2023] [Indexed: 10/18/2023]
Abstract
BACKGROUND Minimally invasive approaches to liver resection (MILR) are associated with favorable outcomes. The aim of this study was to determine the implications of conversion to an open procedure on perioperative outcomes. METHODS Patients who underwent MILR at 10 North American institutions were identified from the Americas Minimally Invasive Liver Resection (AMILES) database. Outcomes of patients who required conversion were compared to those who did not. Additionally, outcomes after conversion due to unfavorable findings (poor visualization/access, lack of progress, disease extent) versus intraoperative events (bleeding, injury, cardiopulmonary instability) were compared. RESULTS Of 1675 patients who underwent MILR, 102 (6.1%) required conversion. Conversion rate ranged from 4.4% for left lateral sectionectomy to 10% for right hepatectomy. The primary reason for conversion was unfavorable findings in 67 patients (66%) and intraoperative adverse events in 35 patients (34%). By multivariable analysis, major resection, cirrhosis, prior liver surgery, and tumor proximity to major vessels were identified as risk factors for conversion (p < 0.05). Patients who required conversion had higher blood loss, transfusion requirements, operative time, and length of stay, (p < 0.05). They also had higher major complication rates (23% vs. 5.2%, p < 0.001) and 30-day mortality (8.8% vs. 1.3%, p < 0.001). When compared to those who required conversion due to unfavorable findings, patients who required conversion due to intraoperative adverse events had significantly higher major complication rates (43% vs. 14%, p = 0.012) and 30-day mortality (20% vs. 3.0%, p = 0.007). CONCLUSIONS Conversion from MILR to open surgery is associated with increased perioperative morbidity and mortality. Conversion due to intraoperative adverse events is rare but associated with significantly higher complication and mortality rates, while conversion due to unfavorable findings is associated with similar outcomes as planned open resection. High-risk patients may benefit from early conversion in a controlled fashion if difficulties are encountered or anticipated.
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Affiliation(s)
| | - Guido Fiorentini
- Department of Surgery, Mayo Clinic, 200 1st Street SW, Rochester, MN, 55905, USA
| | | | | | | | - David A Geller
- University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | | | | | | | | | - Edwin O Onkendi
- Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | | | | | | | - Susanne G Warner
- Department of Surgery, Mayo Clinic, 200 1st Street SW, Rochester, MN, 55905, USA
| | - Adnan Alseidi
- Virginia Mason Medical Center, Seattle, WA, USA
- University of California San Francisco, San Francisco, CA, USA
| | - Sean P Cleary
- Department of Surgery, Mayo Clinic, 200 1st Street SW, Rochester, MN, 55905, USA.
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Ou Y, Liu T, Huang T, Xue Z, Yao M, Li J, Huang Y, Cai X, Yan Y. Risk Factors and Long-Term Implications of Unplanned Conversion During Laparoscopic Liver Resection for Hepatocellular Carcinoma. J Laparoendosc Adv Surg Tech A 2023; 33:1088-1096. [PMID: 37751197 DOI: 10.1089/lap.2023.0276] [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] [Indexed: 09/27/2023] Open
Abstract
Background: Laparoscopic liver resection (LLR) has become a widely used standardized operation for patients with hepatocellular carcinoma (HCC) in the field of hepatic surgery. However, the risk factors and long-term implications associated with unplanned conversion to an open procedure during the LLR have not been adequately studied. Methods: The study incorporated 96 patients with HCC. Risk factors of conversion and their prognosis were analyzed by comparing patients who successfully underwent LLR with those who required unplanned conversion. Results: In this study, the unplanned conversion rate for laparoscopic hepatectomy was 42.7%. Patients who underwent conversion had longer length of stay (8 versus 7 days, P < .001), longer operation time (297.73 versus 194.03 minutes, P = .000), a higher transfusion rate (29.3% versus 5.5%, P < .001), and more postoperative complications compared with patients who successfully underwent LLR. The two surgical maneuvers did not show substantial disparities in terms of total survival and disease-free survival rates. Risk factors of unplanned conversion contained tumor location (odds ratio [OR], 3.129; 95% confidence interval [CI]: 1.214-8.066; P = 0.018) and tumor size (OR, 2.652; 95% CI: 1.039-6.767; P = 0.041). Conclusions: The unplanned conversion during LLR for HCC was linked to unfavorable short-term prognosis, yet it did not influence long-term oncologic outcomes. Moreover, preoperative evaluation of tumor size and location may effectively reduce the probability of unplanned conversion during LLR.
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Affiliation(s)
- Yangyang Ou
- Department of General Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Tao Liu
- Department of General Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Taiyun Huang
- Department of General Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Zhaosong Xue
- Department of General Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Ming Yao
- Department of General Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jianjun Li
- Department of General Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yubin Huang
- Department of General Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xiaoyong Cai
- Department of General Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yihe Yan
- Department of General Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
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Cipriani F, Ratti F, Fornoni G, Marino R, Tudisco A, Catena M, Aldrighetti L. Conversion of Minimally Invasive Liver Resection for HCC in Advanced Cirrhosis: Clinical Impact and Role of Difficulty Scoring Systems. Cancers (Basel) 2023; 15:cancers15051432. [PMID: 36900223 PMCID: PMC10001094 DOI: 10.3390/cancers15051432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/13/2023] [Accepted: 02/22/2023] [Indexed: 03/06/2023] Open
Abstract
BACKGROUND Minimally invasive liver resections (MILRs) in cirrhosis are at risk of conversion since cirrhosis and complexity, which can be estimated by scoring systems, are both independent factors for. We aimed to investigate the consequence of conversion of MILR for hepatocellular carcinoma in advanced cirrhosis. METHODS After retrospective review, MILRs for HCC were divided into preserved liver function (Cohort-A) and advanced cirrhosis cohorts (Cohort-B). Completed and converted MILRs were compared (Compl-A vs. Conv-A and Compl-B vs. Conv-B); then, converted patients were compared (Conv-A vs. Conv-B) as whole cohorts and after stratification for MILR difficulty using Iwate criteria. RESULTS 637 MILRs were studied (474 Cohort-A, 163 Cohort-B). Conv-A MILRs had worse outcomes than Compl-A: more blood loss; higher incidence of transfusions, morbidity, grade 2 complications, ascites, liver failure and longer hospitalization. Conv-B MILRs exhibited the same worse perioperative outcomes than Compl-B and also higher incidence of grade 1 complications. Conv-A and Conv-B outcomes of low difficulty MILRs resulted in similar perioperative outcomes, whereas the comparison of more difficult converted MILRs (intermediate/advanced/expert) resulted in several worse perioperative outcomes for patients with advanced cirrhosis. However, Conv-A and Conv-B outcomes were not significantly different in the whole cohort where "advanced/expert" MILRs were 33.1% and 5.5% in Cohort A and B. CONCLUSIONS Conversion in the setting of advanced cirrhosis can be associated with non-inferior outcomes compared to compensated cirrhosis, provided careful patient selection is applied (patients elected to low difficulty MILRs). Difficulty scoring systems may help in identifying the most appropriate candidates.
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Affiliation(s)
- Federica Cipriani
- Hepatobiliary Surgery Division, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
- Correspondence:
| | - Francesca Ratti
- Hepatobiliary Surgery Division, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Gianluca Fornoni
- Hepatobiliary Surgery Division, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Rebecca Marino
- Hepatobiliary Surgery Division, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Antonella Tudisco
- Hepatobiliary Surgery Division, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Marco Catena
- Hepatobiliary Surgery Division, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Luca Aldrighetti
- Hepatobiliary Surgery Division, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
- Faculty of Medicine and Surgery, Vita-Salute San Raffaele University, 20132 Milan, Italy
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Jo SJ, Rhu J, Kim JM, Choi GS, Joh JW. Indications for open hepatectomy in the era of laparoscopic liver resection: a high volume single institutional study. JOURNAL OF LIVER CANCER 2022; 22:146-157. [PMID: 37383410 PMCID: PMC10035734 DOI: 10.17998/jlc.2022.08.22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 07/31/2022] [Accepted: 08/29/2022] [Indexed: 06/30/2023]
Abstract
Background/Aim Since the introduction of laparoscopy for liver resection in the 1990s, the performance of laparoscopic liver resection (LLR) has been steadily increasing. However, there is currently no data on the extent to which laparoscopy is used for liver resection. Herein, we investigated the extent to which laparoscopy is performed in liver resection and sought to determine whether surgeons prefer laparoscopy or laparotomy in the posterosuperior (PS) segment. Methods For this retrospective observational study, we enrolled patients who had undergone liver resection at the Samsung Medical Center between January 2020 and December 2021. The proportion of LLR in liver resection was calculated, and the incidence and causes of open conversion were investigated. Results A total of 1,095 patients were included in this study. LLR accounted for 79% of the total liver resections. The percentage of previous hepatectomy (16.2% vs. 5.9%, P<0.001) and maximum tumor size (median 4.8 vs. 2.8, P<0.001) were higher in the open liver resection (OLR) group. Subgroup analysis revealed that tumor size (median 6.3 vs. 2.9, P<0.001) and surgical extent (P<0.001) in the OLR group were larger than those in the LLR group. The most common cause of open conversion (OC) was adhesion (57%), and all OC patients had tumors in the PS. Conclusions We investigated the recent preference of practical surgeons in liver resection, and found that surgeons preferred OLR to LLR when treating a large tumor located in the PS.
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Affiliation(s)
- Sung Jun Jo
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jinsoo Rhu
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jong Man Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Gyu-Seong Choi
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jae-Won Joh
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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