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1.
Surg Today ; 54(2): 205-209, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37516666

RESUMO

We reported previously that a large vertical interval between the hepatic segment of the inferior vena cava (IVC) and right atrium (RA), referred to as the IVC-RA gap, was associated with more intraoperative bleeding during hemi-hepatectomy. We conducted a computational fluid dynamics (CFD) study to clarify the impact of fluid dynamics resulting from morphologic variations around the liver. The subjects were 10 patients/donors with a large IVC-RA gap and 10 patients/donors with a small IVC-RA gap. Three-dimensional reconstructions of the IVC and hepatic vessels were created from CT images for the CFD study. Median pressure in the middle hepatic vein was significantly higher in the large-gap group than in the small-gap group (P = 0.008). Differences in hepatic vein pressure caused by morphologic variation in the IVC might be one of the mechanisms of intraoperative bleeding from the hepatic veins.


Assuntos
Veias Hepáticas , Veia Cava Inferior , Humanos , Veia Cava Inferior/anatomia & histologia , Veias Hepáticas/anatomia & histologia , Hidrodinâmica , Fígado/diagnóstico por imagem , Hepatectomia/métodos
2.
Surg Today ; 2024 Mar 13.
Artigo em Inglês | MEDLINE | ID: mdl-38478124

RESUMO

PURPOSE: Post-transplant biliary stricture (PBS) is a common and important complication following orthotopic liver transplantation (LT). This study clarified the incidence of PBS and identified its risk factors. METHODS: We retrospectively reviewed the medical records of 67 patients who underwent living-donor LT (LDLT) at our institute between June 2010 and July 2022 and analyzed their clinical characteristics, prognosis, and risk factors for PBS. RESULTS: Of the 67 patients, 26 (38.8%) developed PBS during the observation period. Multivariate analyses revealed the following independent risk factors for PBS formation: increased red cell transfusion volume per body weight (> 0.2 U/kg; hazard ratio [HR], 3.8; P = 0.002), increased portal vein pressure (PVP) at the end of LT (> 16 mmHg; HR, 2.88; P = 0.032), postoperative biliary leakage (HR, 4.58; P = 0.014), and prolonged warm ischemia time (WIT) (> 48 min; HR, 4.53; P = 0.008). In patients with PBS, the cumulative incidence of becoming stent free was significantly higher in patients with a WIT ≤ 48 min than in those with a WIT > 48 min (P = 0.038). CONCLUSION: Prolonged WIT is associated with intractable PBS following LDLT.

3.
World J Surg ; 47(1): 260-268, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36261603

RESUMO

BACKGROUND: Incisional hernia (IH) is a common surgical complication, with an incidence of 6-31% following major abdominal surgery. This study aimed to investigate the impact of intramuscular adipose tissue content (IMAC) on the incidence of IH in patients who underwent hepatic resection. METHODS: Data of 205 patients who underwent open hepatic resection between 2007 and 2019 at Ehime University Hospital were retrospectively analyzed. Patient characteristics, perioperative findings, and body composition were compared between patients with IH and those without IH. The quantity and quality of skeletal muscle, calculated as skeletal muscle index and IMAC, were evaluated using preoperative computerized tomography images. RESULTS: Forty (19.5%) patients were diagnosed with IH. The cumulative incidence rates were 15.6% at 1 year and 19.6% at 3 years. On univariate analysis, body mass index, areas of subcutaneous and visceral fat, and IMAC were significantly higher in the IH group than in the non-IH group (p = 0.0023, 0.0070, 0.0047, and 0.0080, respectively). No significant difference in skeletal muscle index was found between the groups (p = 0.3548). The incidence of diabetes mellitus, intraoperative transfusion, and postoperative wound infection was significantly higher in the IH group than in the non-IH group (p = 0.0361, 0.0078, and 0.0299, respectively). On multivariate analysis, a high IMAC and wound infection were independent risk factors for IH (adjusted odds ratio, 2.83 and 4.52, respectively; p = 0.0152 and 0.0164, respectively). CONCLUSION: IMAC can predict the incidence of IH in patients undergoing hepatic resection.


Assuntos
Hérnia Incisional , Humanos , Hérnia Incisional/diagnóstico por imagem , Hérnia Incisional/epidemiologia , Hérnia Incisional/etiologia , Estudos Retrospectivos , Tecido Adiposo
4.
Pancreatology ; 22(5): 651-655, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35487869

RESUMO

BACKGROUND: /Objectives: Postoperative pancreatic fistula (POPF) is a serious complication after pancreaticoduodenectomy (PD). Thus, identification of the risk factors for POPF is urgently needed. In this study, we aimed to identify whether arterial lactate (LCT) levels following PD might be a marker of the potential risk of POPF. METHODS: Between September 2009 and December 2020, 151 patients who underwent elective PD were retrospectively enrolled. Patient characteristics, perioperative clinicopathological variables, postoperative blood biochemistry data were analyzed in univariable and multivariable analyses. Pancreatic fistula of Grade B and C was considered as POPF. RESULTS: Patients were divided into the POPF group (n = 33, 21.9%) and non-POPF group (n = 118, 78.1%). Higher body mass index (p = 0.017), increased estimated blood loss (p = 0.047), soft textured pancreas (p = 0.007), smaller main pancreatic duct (p = 0.016), higher LCT levels (p < 0.001), higher aspartate aminotransferase levels (p = 0.023) and higher procalcitonin levels (p = 0.024) were significantly associated with POPF. Receiver operating characteristic curve analysis revealed that 2.1 mmol/L was the optimal cut-off value of LCT (sensitivity = 78.8%, specificity = 61.2%) for predicting POPF occurrence. Univariate and multivariate analyses confirmed that an LCT of ≥2.1 mmol/L was independently associated with the risk of POPF following PD (odds ratio = 6.78, 95% confidence interval = 2.22-20.74; p = 0.001). CONCLUSIONS: Higher LCT is a predictive marker for POPF following PD.


Assuntos
Fístula Pancreática , Pancreaticoduodenectomia , Humanos , Lactatos , Pâncreas/patologia , Fístula Pancreática/diagnóstico , Fístula Pancreática/epidemiologia , Fístula Pancreática/etiologia , Pancreaticoduodenectomia/efeitos adversos , Complicações Pós-Operatórias/etiologia , Estudos Retrospectivos , Fatores de Risco
5.
Langenbecks Arch Surg ; 407(4): 1585-1594, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34997276

RESUMO

PURPOSE: The aim of the present study on living donor liver transplantation (LDLT) using a right-lobe graft without the middle hepatic vein (MHV) was to investigate the clinical impact of MHV tributary reconstruction using our criteria and techniques. METHODS: The medical records of 40 patients who underwent adult LDLT using a right-lobe graft without the MHV between April 2008 and December 2020 were retrospectively reviewed. In this cohort, the criterion for MHV tributary reconstruction was estimated drainage volume of each MHV tributary greater than 100 mL. The drainage vein of segment 8 (V8) was reconstructed as the common orifice of the right hepatic vein and V8 using a venous patch graft, and that of segment 5 was reconstructed using artificial vascular grafts. The outcomes were compared between the groups with and without MHV tributary reconstruction. Factors associated with postoperative massive ascites were also investigated. RESULTS: Twenty patients underwent MHV tributary reconstruction. There were no significant differences in the amount of postoperative ascites, Clavien-Dindo classification ≥ III postoperative complications, and 90-day in-hospital mortality between the groups (P = 0.678, P = 1.000, and P = 0.244, respectively). On multivariate analyses, a low-estimated functional graft-to-recipient weight ratio, which was calculated using estimated graft volume minus the territory of MHV tributaries that was not reconstructed, was identified as an independent predictor of postoperative massive ascites (odds ratio, 40.479; 95% confidence interval, 3.823-428.622). CONCLUSION: The present study suggests that selective MHV tributary reconstruction might be useful for achieving successful graft function.


Assuntos
Transplante de Fígado , Doadores Vivos , Adulto , Ascite , Veias Hepáticas/cirurgia , Humanos , Fígado , Transplante de Fígado/métodos , Estudos Retrospectivos
6.
Surg Today ; 52(4): 721-725, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-34853880

RESUMO

The perioperative management and technical details of laparoscopic clamp-crushing enucleation for low-malignant-potential pancreatic neuroendocrine neoplasms (PNENs) located close to the main pancreatic duct (MPD) in the body/tail of the pancreas using a perioperative MPD stent are reported. The procedure was performed in two patients with PNEN (13 and 10 mm in diameter) in the body/tail of the pancreas. A naso-pancreatic stent (NPS) was placed preoperatively in both patients. Resection was performed using Maryland-type bipolar forceps. The surgical duration was 139 and 55 min, and the estimated blood loss was 5 and 0 mL, respectively. One patient was discharged uneventfully on postoperative day (POD) 12. The other patient developed a grade B pancreatic fistula, but was discharged on POD 22. Laparoscopic clamp-crushing enucleation with an NPS might be a viable treatment option for tumors located close to the MPD.


Assuntos
Laparoscopia , Neoplasias Pancreáticas , Humanos , Laparoscopia/métodos , Pâncreas/cirurgia , Pancreatectomia/métodos , Ductos Pancreáticos/patologia , Ductos Pancreáticos/cirurgia , Neoplasias Pancreáticas/patologia , Neoplasias Pancreáticas/cirurgia , Stents
7.
Gan To Kagaku Ryoho ; 49(12): 1365-1367, 2022 Dec.
Artigo em Japonês | MEDLINE | ID: mdl-36539251

RESUMO

A 57-year-old man was treated with lenvatinib for unresectable hepatocellular carcinoma(HCC). Thereafter, the tumor marker levels decreased, and the tumor became resectable. The patient underwent portal vein embolization followed by laparoscopic extended left lobectomy. The patient's postoperative course was uneventful, and the tumor marker levels remained within the normal range. No recurrence was observed 3 months after surgery. In recent years, the use of systemic chemotherapy with drugs, such as lenvatinib, followed by conversion surgery has been reported in some cases of unresectable HCC. The present case reports successful conversion surgery following lenvatinib treatment.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Quinolinas , Masculino , Humanos , Pessoa de Meia-Idade , Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/cirurgia , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/cirurgia , Compostos de Fenilureia/uso terapêutico , Quinolinas/uso terapêutico , Biomarcadores Tumorais
8.
Gan To Kagaku Ryoho ; 47(1): 147-149, 2020 Jan.
Artigo em Japonês | MEDLINE | ID: mdl-32381887

RESUMO

A 54-year-old male underwent partial resection of the ileum for gastrointestinal stromal tumor(GIST). Although it was a high-risk GIST, he was followed-up without chemotherapy. Nineteen months after the initial operation, an EOB-MRI showed a mass in the liver(S8). As it had increased in size in 4 months of follow-up, 400mg/day of imatinib was started for the diagnosis of liver metastasis. The patient experienced PR 6 months after the initiation of chemotherapy and underwent partial hepatectomy. Imatinib 400mg/day was re-administered after hepatectomy, and the disease was well controlled for 16 months. Imatinib is acceptable as the first-line therapy for unresectable and metastatic GIST. The significance of surgical intervention remains unclear for liver metastasis in GIST; however, it could remain uncontrolled with surgery alone and requires concomitant imatinib therapy. On the other hand, imatinib could be beneficial and its life-long continuation is critical, but most patients eventually develop drug resistance. Complete resection of the metastatic site along with chemotherapy could lead to reduction of secondary resistance to imatinib and prolong the survival rate.


Assuntos
Neoplasias Gastrointestinais , Tumores do Estroma Gastrointestinal , Neoplasias Hepáticas , Terapia Combinada , Hepatectomia , Humanos , Mesilato de Imatinib , Neoplasias Hepáticas/secundário , Masculino , Pessoa de Meia-Idade
9.
Gan To Kagaku Ryoho ; 46(13): 2378-2379, 2019 Dec.
Artigo em Japonês | MEDLINE | ID: mdl-32156937

RESUMO

An 82-year-oldwoman previously underwent total gastrectomy for gastric cancer at the age of 75 years. After 7 years of follow-up, a colonoscopy was performedto investigate the cause of constipation, which revealedan irregularity in the rectal submucosa. A colonoscopy-guidedbiopsy showedpoorly differentiatedad enocarcinoma, andthe immunohistochemical staining pattern showedMUC2(-), MUC5AC(+), CDX2(+), andCA1 25(-). FDG-PET showedintense uptake only at the rectum. Thus, laparoscopic high anterior resection was performed. Pathological findings showed that poorly differentiated adenocarcinoma and signet-ring cell carcinoma hadd evelopedmainly in the submucosa. In comparison with the immunohistological features of the previous gastric cancer, the rectal tumor hadsimilar morphological characteristics. The definitive diagnosis was rectal metastasis from gastric cancer. She has remained recurrence-free in the 20 months since this operation.


Assuntos
Adenocarcinoma , Carcinoma de Células em Anel de Sinete , Neoplasias Retais , Neoplasias Gástricas , Adenocarcinoma/secundário , Adenocarcinoma/cirurgia , Idoso de 80 Anos ou mais , Carcinoma de Células em Anel de Sinete/secundário , Carcinoma de Células em Anel de Sinete/cirurgia , Feminino , Gastrectomia , Humanos , Recidiva Local de Neoplasia , Neoplasias Retais/secundário , Neoplasias Retais/cirurgia , Neoplasias Gástricas/cirurgia
10.
Gan To Kagaku Ryoho ; 46(1): 181-183, 2019 Jan.
Artigo em Japonês | MEDLINE | ID: mdl-30765681

RESUMO

Forty-four patients underwent decompression using a self-expandable metallic stent for obstructive colorectal cancer as a bridge to surgery in our department. Three failure cases were examined. Case 1: A Rs, Ra type 2 cancer was treated with WallflexTM 60 mm. Enough decompression could not be obtained, and an additional stent was placed. Consequently, the patient underwent a transverse colostomy. Case 2: A Ra type 2 cancer was treated with Niti-S 60 mm. The patient's chief complaint was not improved due to the tumor ingrowth. Consequently, he underwent a transverse colostomy. Case 3: A sigmoid type 2 cancer was treated with Niti-S 80 mm. Decompression was successful. However, CT scan revealed another tumor in the descending colon. He underwent a transverse colostomy for further examination. The causes of the failure differed in each case. We gained many learning points from these cases that are useful for future treatment.


Assuntos
Neoplasias Colorretais , Obstrução Intestinal , Stents , Neoplasias Colorretais/complicações , Colostomia , Humanos , Obstrução Intestinal/etiologia , Obstrução Intestinal/terapia , Masculino , Resultado do Tratamento
11.
Gan To Kagaku Ryoho ; 45(13): 1797-1799, 2018 Dec.
Artigo em Japonês | MEDLINE | ID: mdl-30692357

RESUMO

BACKGROUND: The median survival time(MST)of Stage Ⅳ advanced gastric cancer is reportedly 6-13 months. The standard treatment for Stage Ⅳ gastric cancer is systemic chemotherapy. With advancements in chemotherapy, the number of conversion surgery(CS)is increasing. AIM: We evaluated the clinical significance of CS for Stage Ⅳ gastric cancer. METHOD: We retrospectively examined the clinicopathological variables and oncologic outcomes of 11 patients with Stage Ⅳ gastric cancer who received CS after induction chemotherapy. RESULTS: The MST was 86.4 months in all patients. No significant difference was detected in non-curative clinical factors, pathological type, residual tumor, or Ef-Grade. A longer prognosis could be achieved when an R0 resection was obtained, with excellent histopathologial response, without peritoneal dissemination, and with negative peritoneal lavage cytology. CONCLUSION: This study provides positive evidence that CS for Stage Ⅳ gastric cancer could be performed safely and could possibly provide longer survival in selected patients.


Assuntos
Gastrectomia , Neoplasias Gástricas , Protocolos de Quimioterapia Combinada Antineoplásica , Humanos , Estadiamento de Neoplasias , Prognóstico , Estudos Retrospectivos , Neoplasias Gástricas/cirurgia
12.
Clin J Gastroenterol ; 17(3): 587-591, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38460085

RESUMO

Pancreas divisum (PD) represents a prevalent congenital pancreatic variant, typically arising from the failure of fusion between the ventral and dorsal pancreatic ducts. This condition is frequently associated with recurrent pancreatitis. We herein present a case involving an incomplete PD diagnosis following the identification of a refractory postoperative pancreatic fistula (POPF) after laparoscopic distal pancreatectomy (DP) for pancreatic cancer. A 74-year-old female patient, who had undergone laparoscopic DP for pancreatic cancer, developed a POPF accompanied by intraabdominal bleeding, necessitating urgent intervention radiology to avert life-threatening complications. Following this, intraabdominal drainage was performed through an intraoperative drainage root. Subsequent fistulography and endoscopic retrograde pancreatography unveiled the presence of an incomplete PD for the first time. Consequently, a stent was placed in the Santorini duct. However, the volume of pancreatic juice from the intraabdominal drainage tube exhibited no reduction. Despite repeated attempts to access the pancreatic duct via a guidewire through the drainage tube, these endeavors proved futile. Paradoxically, the removal of the external drainage tube led to a recurrence of intraabdominal abscess formation. Consequently, reinsertion of the drainage tube became imperative. Consideration was given to draining the abscess under endoscopic ultrasonography and performing pancreatic duct drainage. However, due to the diminution of the abscess cavity through the external fistula drainage procedure, coupled with the absence of pancreatic duct dilation and its tortuous course, it was deemed a formidable challenge. the patient necessitated a lifestyle adaptation with a permanently placed percutaneous drainage tube.


Assuntos
Drenagem , Laparoscopia , Pancreatectomia , Fístula Pancreática , Neoplasias Pancreáticas , Complicações Pós-Operatórias , Humanos , Fístula Pancreática/etiologia , Fístula Pancreática/cirurgia , Fístula Pancreática/diagnóstico por imagem , Feminino , Idoso , Pancreatectomia/métodos , Laparoscopia/métodos , Neoplasias Pancreáticas/cirurgia , Drenagem/métodos , Complicações Pós-Operatórias/cirurgia , Complicações Pós-Operatórias/etiologia , Pâncreas/anormalidades , Pâncreas/cirurgia , Stents , Abscesso Abdominal/etiologia , Abscesso Abdominal/cirurgia , Abscesso Abdominal/diagnóstico por imagem , Pâncreas Divisum
13.
PLoS One ; 19(2): e0299263, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38416748

RESUMO

BACKGROUND: Variations in hepatic arteries are frequently encountered during pancreatoduodenecomy. Identifying anomalies, especially the problematic aberrant right hepatic artery (aRHA), is crucial to preventing vascular-related complications. In cases where the middle hepatic artery (MHA) branches from aRHAs, their injury may lead to severe liver ischemia. Nevertheless, there has been little information on whether MHA branches from aRHAs. This study aimed to investigate the relationship between aRHAs and the MHA based on the embryological development of visceral arteries. METHODS: This retrospective study analyzed contrast-enhanced computed tomography images of 759 patients who underwent hepatobiliary-pancreatic surgery between January 2011 and August 2022. The origin of RHAs and MHA courses were determined using three-dimensional reconstruction. All cases of aRHAs were categorized into those with or without replacement of the left hepatic artery (LHA). RESULTS: Among the 759 patients, 163 (21.4%) had aRHAs. Five aRHAs patterns were identified: (Type 1) RHA from the gastroduodenal artery (2.7%), (Type 2) RHA from the superior mesenteric artery (SMA) (12.7%), (Type 3) RHA from the celiac axis (2.1%), (Type 4) common hepatic artery (CHA) from the SMA (3.5%), and (Type 5) separate branching of RHA and LHA from the CHA (0.26%). The MHA did not originate from aRHAs in Types 1-3, whereas in Type 4, it branched from either the RHA or LHA. CONCLUSIONS: Based on the developmental process of hepatic and visceral arteries, branching of the MHA from aRHAs is considered rare. However, preoperative recognition and intraoperative anatomical assessment of aRHAs is essential to avoid injury.


Assuntos
Artéria Celíaca , Artéria Hepática , Humanos , Artéria Hepática/diagnóstico por imagem , Estudos Retrospectivos , Artéria Celíaca/anormalidades , Fígado/diagnóstico por imagem , Fígado/cirurgia , Tomografia Computadorizada por Raios X
14.
Surg Laparosc Endosc Percutan Tech ; 34(1): 113-116, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-37971256

RESUMO

BACKGROUND: Minimally invasive distal pancreatectomy has become a widely accepted procedure for tumors located in the pancreatic body or tail. However, pancreatic transection by linear stapler is generally avoided for pancreatic body tumors located above the portal vein because the surgical margin width is narrowed after taking into account the cutting allowance for insertion of the stapling device. Herein, we report a parenchymal clamp-crushing procedure that provides a sufficient surgical margin in pancreatic transection. METHODS: Two patients with suspected early pancreatic cancer underwent pancreatic transection using the clamp-crushing procedure. The planned pancreatic transection line was set just to the left of the gastroduodenal artery in both cases. Robotic and laparoscopic distal pancreatectomy were performed in 1 patient each. Patients were positioned supine with split legs. Parenchymal transection was performed with crushing by VIO 3 (ERBE Elektromedizin) operated in softCOAG Bipolar mode with Effect 2/modulation 50. After crushing, remnant tissue was cut in autoCUT Bipolar mode operated by VIO 3 with Effect 2/modulation 50, or cut after secured by clipping. RESULTS: The surgical duration was 253 and 212 minutes, and estimated blood loss was 0 and 50 mL in the 2 patients, and both were discharged with uneventful courses. Pathologic examination confirmed a negative surgical margin in both patients. CONCLUSION: Clamp-crushing pancreatic transection for distal pancreatectomy might be a suitable treatment option for achieving sufficient surgical margin in pancreatic body tumors located close to the portal vein.


Assuntos
Laparoscopia , Neoplasias Pancreáticas , Humanos , Pancreatectomia/métodos , Margens de Excisão , Pâncreas/cirurgia , Pâncreas/patologia , Neoplasias Pancreáticas/cirurgia , Neoplasias Pancreáticas/patologia , Esplenectomia/métodos , Laparoscopia/métodos
15.
Cancers (Basel) ; 16(5)2024 Feb 25.
Artigo em Inglês | MEDLINE | ID: mdl-38473284

RESUMO

Adjuvant chemotherapy (AC) with S-1 after radical surgery for resectable pancreatic cancer (PC) has shown a significant survival advantage over surgery alone. Consequently, ensuring that patients receive a consistent, uninterrupted S-1 regimen is of paramount importance. This study aimed to investigate whether the C-reactive protein-to-albumin ratio (CAR) could predict S-1 AC completion in PC patients without dropout due to adverse events (AEs). We retrospectively enrolled 95 patients who underwent radical pancreatectomy and S-1 AC for PC between January 2010 and December 2022. A statistical analysis was conducted to explore the correlation of predictive markers with S-1 completion, defined as continuous oral administration for 6 months. Among the 95 enrolled patients, 66 (69.5%) completed S-1, and 29 (30.5%) failed. Receiver operating characteristic curve analysis revealed 0.05 as the optimal CAR threshold to predict S-1 completion. Univariate and multivariate analyses further validated that a CAR ≥ 0.05 was independently correlated with S-1 completion (p < 0.001 and p = 0.006, respectively). Furthermore, a significant association was established between a higher CAR at initiation of oral administration and acceptable recurrence-free and overall survival (p = 0.003 and p < 0.001, respectively). CAR ≥ 0.05 serves as a predictive marker for difficulty in completing S-1 treatment as AC for PC due to AEs.

16.
Medicine (Baltimore) ; 103(9): e37336, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-38428909

RESUMO

RATIONALE: The utility of the dorsal approach has been reported for laparoscopic left hemi-hepatectomy. PATIENT CONCERNS: The aim of the present study is to show the usefulness of the dorsal approach for laparoscopic extended left-hemi-hepatectomy while ensuring safe identification of hepatic veins and dissection of the dorsal tumor margin. DIAGNOSES: Tumors requiring extended left hemi-hepatectomy. INTERVENTIONS: After mobilization of the lateral sector and division of the Arantius plate, parenchyma above the Arantius plate is removed to expose the root of the middle hepatic vein and left hepatic vein. Each of these veins can be isolated separately either intra- or extra-hepatically. After removing the parenchyma on the cranial side of the left Glissonean pedicle continuous with the exposed hepatic veins, the left Glissonean pedicle is isolated using the Glissonean pedicle transection method. After division of the left hepatic vein and Glissonean pedicle, segment 4 (in which the main part of the tumor is commonly located) is dissected from the anterior plane of the paracaval portion of the caudate lobe by the dorsal approach, along with the hepatic hilum. Following dissection of the dorsal side of the tumor, and division of parenchyma from the anterior edge of the liver, the anterior Glissonean branches and middle hepatic vein are divided safely and the specimen is resected. OUTCOMES: Three patients underwent laparoscopic extended left hemi-hepatectomy, with no open conversions. Operative time and blood loss were 331 (concomitant with another partial hepatectomy), 277, and 315 minutes; and 200, 100, and 100 g, respectively. The postoperative courses were uneventful. LESSONS: The dorsal approach maximizes the advantages of laparoscopic extended left hemi-hepatectomy and can be performed safely.


Assuntos
Carcinoma Hepatocelular , Laparoscopia , Neoplasias Hepáticas , Humanos , Hepatectomia/métodos , Neoplasias Hepáticas/cirurgia , Neoplasias Hepáticas/patologia , Carcinoma Hepatocelular/cirurgia , Carcinoma Hepatocelular/patologia , Veias Hepáticas/cirurgia , Veias Hepáticas/patologia , Laparoscopia/métodos
17.
J Hepatobiliary Pancreat Sci ; 30(6): e31-e35, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36401822

RESUMO

Two versus 1 venous reconstruction is sometimes required for Hepato-Biliary-Pancreatic and Transplantation surgery. V-shape venoplasty is considered to be useful knack of unification method during 2 versus 1 venous reconstruction in clinical practice. The usefulness of V-shape unification venoplasty was proven by the present computational fluid dynamics study.


Assuntos
Transplante de Fígado , Procedimentos de Cirurgia Plástica , Humanos , Transplante de Fígado/métodos , Hidrodinâmica , Doadores Vivos , Procedimentos Cirúrgicos Vasculares/métodos
18.
Ann Transplant ; 28: e941346, 2023 Sep 12.
Artigo em Inglês | MEDLINE | ID: mdl-37697637

RESUMO

BACKGROUND In liver transplantation (LT), preoperative desensitization therapy is considered necessary in patients positive for donor-specific anti-human leukocyte antigen antibodies (DSAs). However, the relationship between DSA intensity and the necessary desensitization therapy is unclear. MATERIAL AND METHODS A total of 37 adult living donor (LD) LTs performed between January 2016 and March 2022 were examined. Mycophenolate mofetil (MMF) was administered preoperatively in DSA-positive cases with positive lymphocyte cross-matching who underwent LDLT. In those with strongly positive DSA (mean fluorescence intensity 10 000), rituximab was administered 2 weeks before LDLT in addition to MMF. Cross-reactive epitope group antigen (CREG)-alone-positive cases were also treated with preoperative MMF when lymphocyte cross-matching was positive. RESULTS Of the 37 patients, 9 were DSA-positive, 7 were CREG-alone-positive, and the others were double-negative. Of 9 DSA-positive cases, desensitization therapy was performed in 7, among which rituximab administration was performed in 3 strongly DSA-positive cases. Of 7 CREG-alone-positive cases, 2 were lymphocyte cross-match-positive and underwent desensitization therapy. The 1-year survival rate was 100% in both DSA- and CREG-alone-positive cases. The frequency of T-cell mediated rejection in DSA-positive, CREG-alone-positive, and double-negative cases was 22%, 43%, and 29%, respectively, with no significant difference. Antibody-mediated rejection occurred in only 1 patient, who was strongly DSA-positive and blood-group incompatible. There was also no significant difference among the 3 groups in terms of the frequency of biliary complications or 90-day mortality. CONCLUSIONS Satisfactory LDLT results were achieved in DSA- and CREG-alone-positive cases following desensitization therapy.


Assuntos
Transplante de Fígado , Doadores Vivos , Adulto , Humanos , Rituximab/uso terapêutico , Antígenos HLA , Anticorpos/uso terapêutico
19.
Pancreas ; 52(3): e196-e202, 2023 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-37824399

RESUMO

OBJECTIVES: Surgery plus adjuvant chemotherapy (AC) for resectable pancreatic ductal adenocarcinoma (PDAC) has been shown to prolong survival compared with surgery alone. Thus, it is of clinical importance that these patients receive a continuous dose of S-1. The aim of this study was to examine whether the geriatric nutritional risk index (GNRI) is a predictor for the completion of S-1 as AC for PDAC. METHODS: Seventy-seven patients who were administered S-1 as AC after pancreatectomy for PDAC between January 2010 and October 2021 were retrospectively enrolled. Predictive markers were statistically analyzed for S-1 completion, which was defined as continued oral administration with relative dose intensity of >80%. RESULTS: Patients were divided into the S-1 complete group (n = 55; 71.4%) and S-1 incomplete group (n = 22; 28.6%). There was a significant association of higher GNRI ( P = 0.013) at the onset of AC with the completion of S-1. Receiver operating characteristic curve analysis revealed 94.4 as the optimal cutoff value of GNRI for predicting the completion of S-1. Univariate and multivariate analyses confirmed that GNRI >94.4 was independently associated with the completion of S-1 ( P = 0.007). CONCLUSIONS: High GNRI value is a predictive marker for the completion of S-1 as AC for PDAC.


Assuntos
Carcinoma Ductal Pancreático , Neoplasias Pancreáticas , Humanos , Idoso , Estudos Retrospectivos , Prognóstico , Neoplasias Pancreáticas/tratamento farmacológico , Neoplasias Pancreáticas/cirurgia , Neoplasias Pancreáticas/patologia , Carcinoma Ductal Pancreático/tratamento farmacológico , Carcinoma Ductal Pancreático/cirurgia , Carcinoma Ductal Pancreático/patologia , Quimioterapia Adjuvante , Neoplasias Pancreáticas
20.
Transplant Proc ; 55(8): 1956-1958, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37481391

RESUMO

There have never been any reports of adult varicella-zoster virus (VZV) encephalitis cases. Here, we report a case of VZV encephalitis after adult ABO-incompatible living donor liver transplantation (LDLT). A 38-year-old man with decompensated liver cirrhosis caused by the hepatitis C virus was referred to our hospital as an LDLT candidate. Rituximab was administered 3 weeks before the operation, and immunosuppression agents were administered 1 week before the LDLT. Plasma exchange was performed 3 times before the LDLT. The right lobe from his mother's liver was used for the ABO-incompatible LDLT. On postoperative day (POD) 9, vascular stenting for intraabdominal bleeding from the common hepatic artery was performed by interventional radiology and was followed by re-laparotomy for abdominal drainage of the hematoma. However, there were various degrees of continued bleeding thereafter. On POD 12, due to a convulsion seizure with loss of consciousness, the patient was started on anticonvulsant therapy. On POD 15, there was an increased frequency of convulsion attacks and a prolonged loss of consciousness. A lumbar puncture was performed on POD 20 due to the appearance of shingles. The positive polymerase chain reaction of the VZV-DNA from the cerebrospinal fluid was detected, and he was diagnosed with VZV encephalitis. He rapidly regained alertness, and there were no further observed convulsion attacks after administration of a steroid pulse and acyclovir. Brain magnetic resonance imaging performed on 2 subsequent postoperative months showed findings that matched with VZV encephalitis. He was discharged as he had recovered and was ambulatory 3 months after LDLT.

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