Reduction of ischemic time using the pull-through technique for scapular free flap.

Purpose: Current scapular free flap (SFF) harvest in mandibular reconstruction often requires repositioning, hindering simultaneous harvest and resection and potentially increasing ischemic time. This study evaluated the efficacy of the pull-through technique (PTT) for SFF harvest, aiming to reduce ischemic time during mandibular segmental resection.

Methods: A retrospective analysis was conducted on 24 patients who underwent mandibular reconstruction using SFF at two maxillofacial surgery departments between January 2015 and May 2022.

Stent Graft Placement for Injured Visceral Artery.

Injury of the visceral artery is a potentially fatal complication of iatrogenic procedures, trauma, and tumors. A stent graft can achieve rapid exclusion of the injured arterial portion and minimize the risk of ischemic complications by preserving arterial flow to organs. Although various types of stent grafts are available worldwide, Viabahn has only been approved for visceral arterial injury in Japan.

Determination of Significant Prognostic Factors for Maxillary Gingival Squamous Cell Carcinoma in 90 Cases.

Maxillary gingival squamous cell carcinoma (MGSCC) occurs rather infrequently, compared to tongue and mandibular gingival carcinomas, among the cancers of the oral cavity. Therefore, significant numbers of MGSCC cases have not been statistically analysed. The aim of this study is to clarify the prognostic factors for MGSCC.

Protocol for a multicentre, prospective observational study of elective neck dissection for clinically node-negative oral tongue squamous cell carcinoma (END-TC study).

Introduction: In early-stage oral tongue squamous cell carcinoma (OTSCC), elective neck dissection (END) is recommended when occult lymph node metastasis is suspected; however, there is no unanimous consensus on the risks and benefits of END in such cases. The management of clinically node-negative (cN0) OTSCC remains controversial. This study, therefore, aimed to evaluate the efficacy of END and its impact on the quality of life (QoL) of patients with cN0 OTSCC.

Fibrin Glue in Interventional Radiology: How to Use It.

A fibrin glue kit consists of separate solutions of fibrinogen and thrombin that instantly coagulate when mixed together and can be used as an embolic agent and tissue adhesive in several interventional procedures, such as the closure of enterocutaneous, postoperative pancreatic, and bronchopulmonary fistulas, embosclerosis of biloma, and portal vein embolization. Separate and simultaneous injections of fibrinogen and thrombin solutions at the target site are necessary; therefore, insertion of two catheters or a balloon catheter with multiple lumen is required. The combined use of metallic coils is also effective for a large fistula as the coils can provide a matrix for retaining the fibrin glue, in addition to partially occluding the fistulous tract.

Excretion of Necrotic Hepatocellular Carcinoma Tissues into Hepatic Lymphatic Vessels after Conventional Transarterial Chemoembolization.

We report a case of necrotic hepatocellular carcinoma tissue excretion into the hepatic lymphatic system after conventional transarterial chemoembolization (cTACE) in an 80-year-old man with liver cirrhosis. A tumor measuring 19 mm in diameter in segment 5 was successfully treated with superselective cTACE. Hepatic lymphatic vessels were not opacified with iodized oil during the procedure.

Percutaneous sclerotherapy using a 4 F pigtail catheter and 40 milliliters of 5% ethanolamine oleate for symptomatic large hepatic cysts.

PURPOSE We retrospectively evaluated the efficacy of percutaneous sclerotherapy using a 4 F catheter and 40 mL of 5% ethanolamine oleate (EO) for symptomatic large hepatic cysts. METHODS Twenty-four patients, including 10 with polycystic liver disease (PLD), were eligible. The mean long- and short-axis diameters of the cyst on computed tomography (CT) were 145.

Efficacy of Superselective Conventional Transarterial Chemoembolization Using Guidance Software for Hepatocellular Carcinoma within Three Lesions Smaller Than 3 cm.

The indication of transarterial chemoembolization (TACE) has advanced to hepatocellular carcinoma (HCC) of Barcelona Clinic Liver Cancer (BCLC) stage A when surgical resection (SR), thermal ablation, and bridging to transplantation are contraindicated; however, TACE for small HCC is frequently difficult and ineffective because of less hypervascularity and the presence of tumor portions receiving a dual blood supply. Here, we report outcomes of superselective conventional TACE (cTACE) for 259 patients with HCCs within three lesions smaller than 3 cm using guidance software. Automated tumor feeder detection (AFD) functionality was applied to identify tumor feeders on cone-beam computed tomography during hepatic arteriography (CBCTHA) data.

General rules for clinical and pathological studies on oral cancer (2nd edition): a synopsis.

For doctors and other medical staff treating oral cancer, it is necessary to standardize the basic concepts and rules for oral cancer to achieve progress in its treatment, research, and diagnosis. Oral cancer is an integral part of head and neck cancer and is treated in accordance with the general rules for head and neck cancer. However, detailed rules based on the specific characteristics of oral cancer are essential.

Cerebral Embolism as a Rare Complication of Balloon-Occluded Retrograde Transvenous Obliteration for Gastric Varices: A Case Report.

We report a case of cerebral embolism caused by balloon-occluded retrograde transvenous obliteration (BRTO) for gastric varices in a 77-year-old woman with liver cirrhosis. Balloon-occluded retrograde venography demonstrated multiple collaterals between the efferent and systemic veins, and some of them could not be embolized with metallic coils. Therefore, they were embolized with ethanol, 50% glucose solution, gelatin sponge particles, and ethanolamine oleate, and BRTO was completed.

Usefulness of virtual parenchymal perfusion software visualizing embolized areas to determine optimal catheter position in superselective conventional transarterial chemoembolization for hepatocellular carcinoma.

Aim: To determine the optimal catheter position during superselective conventional transarterial chemoembolization (cTACE) for hepatocellular carcinoma (HCC) using virtual parenchymal perfusion software.

Methods: Patients who had newly developed HCC nodules ≤6 cm and five or fewer lesions were eligible. The virtual catheter tip was placed on a tumor-feeder identified by TACE guidance software using cone-beam computed tomography during hepatic arteriography to minimize the virtual embolized area (VEA), including the tumor with a safety margin.

Transarterial Interventional Therapy for Non-functioning Hemodialysis Access.

Transarterial vascular access interventional therapy (VAIVT) for non-functioning hemodialysis access has advantages over the venous approach because natural venous outflow through the fistula as well as the stump at the fistula site in total occlusion can be observed, and most strictures and/or occlusions can be treated via one access route. The brachial arterial approach is essential, but the radial arterial approach at the wrist is also necessary for certain patients. The transarterial approach can be applied to all VAIVTs; however, additional venous access is necessary in cases requiring a large device and those with unsuccessful traversal of the occluded segment via the arterial route.

Intraoperative Bile Duct Disruption Treated Using Intrahepatic Biliary Ablation with Ethanol: A Report of Two Cases.

We report two cases of intraoperative bile duct disruption. In case 1, an isolated bile duct in the remnant of the anterosuperior liver segment after right hepatic lobectomy for cholangiocarcinoma caused bile leakage. In case 2, bile leakage continued from a disrupted accessory hepatic duct during pancreaticoduodenectomy for pancreatic carcinoma.

Blood supply to the caudate lobe of the liver from the right inferior phrenic artery: observation by cone-beam computed tomography during arteriography.

Purpose: To retrospectively evaluate blood supply to the caudate lobe of the liver from the right inferior phrenic artery (RIPA) using cone-beam computed tomography during arteriography (CBCTA-RIPA).

Methods: CBCTA-RIPA examinations during transarterial chemoembolization (TACE) for hepatocellular carcinoma (HCC) were collected from 2448 procedures in 787 patients. The exclusion criteria were (1) major artifacts, (2) TACE of hepatic arterial branches before performing CBCTA-RIPA, and (3) repeated CBCTA-RIPA studies in the same patient.

Outcomes of conventional transarterial chemoembolization for hepatocellular carcinoma ≥10 cm.

Aim: To retrospectively evaluate the outcomes of conventional transarterial chemoembolization (cTACE) for hepatocellular carcinoma (HCC) ≥10 cm.

Methods: Twenty-five patients with naïve HCC ≥10 cm (mean maximum tumor diameter, 130 ± 27.6 mm; single [n = 12], 2-9 [n = 6], and ≥10 [n = 7]) without extrahepatic spread treated with cTACE were eligible.

Outcomes of Patients with Hepatocellular Carcinoma Treated with Conventional Transarterial Chemoembolization Using Guidance Software.

Purpose: To evaluate the outcomes of conventional transarterial chemoembolization using guidance software for hepatocellular carcinoma (HCC) patients.

Materials And Methods: One hundred two patients with treatment-naïve HCC with ≤ 7-cm and ≤ 5 lesions treated with conventional transarterial chemoembolization using guidance software were selected. Technical success was classified into 3 grades by computed tomography performed 1 week after transarterial chemoembolization: (i) A, complete embolization with a safety margin; (ii) B, entire tumor embolization without a safety margin; and (iii) C, incomplete embolization.

Usefulness of dual-phase cone-beam computed tomography during arteriography and automated tumour-feeder detection software in transarterial embolization for obscure arterial bleeding in the abdomen.

We report the usefulness of dual-phase cone-beam computed tomography during angiography (CBCTA) and automated tumour-feeder detection software (AFD) in transarterial embolization (TAE) for three consecutive cases of obscure arterial bleeding in the abdomen. Two patients presented with lower gastrointestinal bleeding and one showed bleeding into the pancreatic pseudocyst. Superior mesenteric or common hepatic angiography did not demonstrate extravasation, but dual-phase CBCTA and AFD could identify extravasation and an access route to the bleeding point.

Does a Vascularized Fibula Free Bone Grafted Immediately After Hemimandibulectomy in a Child Grow or Relapse During Adolescence?

For young growing children before the end of skeletal maturity, the growth activity of the grafted bone after hemimandibulectomy is not well-known. After an adolescence, such a patient may have facial deformity because the anterior growth point of the mandible is in the condylar neck. A 13-year-old boy was performed hemimandibulectomy with immediate mandibular reconstruction by fibula free flap (FFF) because of a huge ameloblastic fibroma.

Reliability and Validity of the MD Anderson Dysphagia Inventory Among Japanese Patients.

This study aimed to validate the Japanese version of a dysphagia-specific quality of life questionnaire, the MD Anderson Dysphagia Inventory (MDADI-J), and to verify trends between MDADI-J and Functional Oral Intake Scale (FOIS) scores. The original 20 MDADI items were translated using a forward-backward method following accepted cultural adaptation guidelines. Seventy-two patients with a history of head and neck cancer treatment completed the MDADI-J between October 2015 and August 2016.

Excretion of necrotic hepatocellular carcinoma tissues into the biliary system after transcatheter arterial chemoembolization.

Aim: To evaluate the incidence and condition of necrotic tumor excretion into the biliary system in patients with hepatocellular carcinoma (HCC) >5 cm treated with conventional transcatheter arterial chemoembolization (TACE).

Methods: Eighty-three patients who underwent TACE for newly developed HCC >5 cm without an intraductal tumor thrombus and were followed-up by computed tomography for longer than 6 months were eligible. According to the location, the maximum tumors were divided into central (in contact with the left or right hepatic duct, n = 39) or peripheral (not in contact with them, n = 44).

Clinical Study of 597 Oral Squamous Cell Carcinomas in Our Department - Especially about 318 Tongue Carcinoma.

This clinico-statistical study includes 597 cases of oral squamous cell carcinoma treated at the Maxillofacial Surgery Section of Tokyo Medical and Dental University between January 2002 and December 2011. There were 373 male and 224 female patients (male to female ratio, 1.7 : 1), and the median age was 67 years.

Performance of novel virtual parenchymal perfusion software visualizing embolized areas of transcatheter arterial chemoembolization for hepatocellular carcinoma.

Aim: To evaluate the performance of novel virtual parenchymal perfusion (VPP) software in conventional transcatheter arterial chemoembolization (cTACE) for hepatocellular carcinoma.

Methods: VPP was retrospectively applied to 43 hepatocellular carcinomas treated with cTACE. The virtual embolized area (VEA) was estimated after positioning a virtual injection point on images of non-selective cone-beam computed tomography during hepatic arteriography, at the same position in superselective cTACE.

Primary intraosseous squamous cell carcinoma derived from a maxillary cyst: A case report and literature review.

Primary intraosseous squamous cell carcinoma (PIOSCC) is a rare malignant central jaw tumor derived from odontogenic epithelial remnants. PIOSCC predominantly affects the mandible, although both jawbones may be involved. This case report describes a PIOSCC type 2 of the maxilla in a 37-year-old man, treated by partial maxillectomy.

Clinical study on mandibular fracture after marginal resection of the mandible.

Objectives: Postoperative mandibular fracture (PMF) after marginal resection (MR) of the mandible remains an unresolved issue, and it has been reported that at least 10 mm of postoperative mandibular body height (PMBH) is required to prevent PMF. This study evaluated the clinical, physical, and structural risk factors for PMF in MR patients and determined appropriate preventive measures for PMF.

Study Design: This retrospective study included 44 patients with lower gingival carcinoma who underwent MR.

Evaluation of tumor recurrence after superselective conventional transcatheter arterial chemoembolization for hepatocellular carcinoma: Comparison of computed tomography and gadoxetate disodium-enhanced magnetic resonance imaging.

Aim: To retrospectively evaluate the detectability of tumor recurrence with computed tomography (CT) and magnetic resonance imaging (MRI) after superselective conventional transcatheter arterial chemoembolization (cTACE) for hepatocellular carcinoma (HCC).

Methods: The detectability of tumor recurrence with CT and gadoxetate disodium-enhanced MRI obtained within 30 days (mean, 16.9 ± 10.