Publications by authors named "Yasuaki Kamikawa"

Purpose: Although proximal gastrectomy (PG) is commonly used in patients with upper gastric cancer (GC) and esophagogastric junction (EGJ) cancer, long-term prognostic factors in these patients are poorly understood. The double-flap technique (DFT) is an esophagogastrostomy with anti-reflux mechanism after PG; we previously conducted a multicenter retrospective study (rD-FLAP) to evaluate the short-term outcomes of DFT reconstruction. Here, we evaluated the long-term prognostic factors in patients with upper GC and EGJ cancer.

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A 81-year-old woman was referred to our hospital for neck discomfort. Chest computed tomography (CT) showed a tumor in the upper mediastinum. Fluorodeoxyglucose-positron emission tomography (FDG-PET) showed the mild accumulation in the tumor.

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Article Synopsis
  • Proximal gastrectomy (PG) using the double-flap technique (DFT) has a risk of causing metachronous remnant gastric cancer (MRGC), with unclear follow-up protocols after surgery.
  • A study of 471 patients revealed an 8.9% incidence of MRGC, with early-stage cancer diagnoses linked to regular follow-up endoscopies, leading to no MRGC-related deaths.
  • The research indicates that eradicating Helicobacter pylori infection significantly lowers MRGC incidence, highlighting the importance of both early detection and H. pylori treatment in improving patient outcomes after PG with DFT.
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A 67-year-old woman was referred to our hospital for cough and fever. Chest computed tomography (CT) showed some masses showing slightly enhanced effect in the pericardium. FDG-PET showed the accumulation of FDG in the masses.

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A 71-year-old woman was referred to our hospital for a round mass shadow in the right lower lung field in mass screening chest X-ray. Computed tomography (CT) of the chest showed a well-defined lobulating mass shadow measuring 2.2 cm in diameter in the lower lobe of the right lung and a ground glass opacity ( GGO) in the upper lobe of the left lung.

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Aim: As a result of the difficulty in effective prevention of gastroesophageal reflux, no standard reconstruction procedure after proximal gastrectomy (PG) has yet been established. The double-flap technique (DFT), or Kamikawa procedure, is an antireflux reconstruction procedure in esophagogastrostomy. The efficacy of DFT has recently been reported in several studies.

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A 66-year-old man was referred to our hospital for an abnormal shadow. Chest computed tomography (CT)showed a heterogeneous mass with well-defined border in the right S10and ipsilateral pleural effusion. Fluorodeoxyglucose-positron emission tomography(FDG-PET)showed the accumulation in the mass and pleural effusion.

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We herein report a rare case of solitary splenic metastasis of a pulmonary carcinoid, for which hand-assisted laparoscopic splenectomy was performed. A 73-year-old man was admitted to the Inoue Hospital (Fukuyama, Japan) in March 2015 with an abnormal shadow of the spleen. The patient had a history of right upper lobectomy with lymph node dissection for a pulmonary typical carcinoid (pT1N0M0 stage IA) 7 years earlier.

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A 64-year-old man consulted for an abnormal shadow in November 2012. Chest computed tomography showed a thicking and small nodules of the left pleura and pleural effusion with mediastinal and supracravicular lymphnodes swelling. The cytological study of the pleural effusion showed individual atypical cells surrounded by many lymphocyte.

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A 82-year-old man consulted for therapy for lung cancer in March 2010. Chest computed tomography (CT) showed a mass in right lower lobe of the lung. Fluorodeoxyglucose-positron emission tomography (FDG-PET) showed the accumulation in the mass.

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A 7 9-year-old man with advanced gallbladder cancer (stage IVa) underwent chemotherapy with single-agent gemcitabine (1,400mg/body: day 1, 8, 15, every 4 weeks) as first-line chemotherapy. As soon as the chemotherapy started, the carbohydrate antigen 19-9 (CA19-9) level was notably reduced, and after 4 courses, CT scan revealed that the tumor was markedly reduced in size. We thought he could undergo curative operation, and performed and extended cholecystectomy and lymph node dissection.

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Synopsis of recent research by authors named "Yasuaki Kamikawa"

  • - Yasuaki Kamikawa's recent research has primarily focused on gastrointestinal surgeries, particularly examining the long-term prognostic factors and incidence of complications following proximal gastrectomy using the double-flap technique for gastric and esophagogastric junction cancers.
  • - In a notable publication, Kamikawa's work has highlighted the significance of the prognostic nutritional index as a critical factor in predicting outcomes for patients undergoing these procedures, as demonstrated in a secondary analysis of the rD-FLAP study.
  • - Additionally, Kamikawa has reported various case studies related to rare malignancies in the thoracic region, emphasizing the importance of accurate diagnosis and treatment approaches for conditions such as epithelioid hemangioendothelioma and primary pericardial malignant mesothelioma.