Minimally invasive aortic valve replacement (MIAVR) through right antero-lateral thoracotomy (ALT) has several advantages over traditional anterior chest approaches (right anterior thoracotomy, or partial sternotomy). First, ALT is less affected by anatomical variation of the position of the ascending aorta, second, concomitant mitral valve surgery is possible, and third, outcome in cosmesis is better. MIAVR can be done under direct vision and endoscopic assist. Longitudinal axillary incision and thoracotomy through the third inter-costal space is appropriate to directly look down the aortic valve. Endoscopic assist and tying down the sutures using a knot-pusher are mandatory. MIAVR can also be done totally endoscopically. Three dimensional endoscope and independent working ports for the right and left hand are helpful. Appropriate working space for the endoscopic surgery is obtained by antero-lateral approach. Standard valve can be used in endoscopic AVR, without using fastener devices.

Purpose: A change in diagnosis from ulcerative colitis (UC) to Crohn's disease (CD) has been reported in pediatric inflammatory bowel disease; however, only a few clinical characteristics and predictors of this diagnostic change have been reported. We aimed to describe the clinical characteristics of patients with UC who underwent a change in diagnosis to CD and identify variables associated with the change. Methods: The medical records of pediatric patients with UC who were followed up at the National Center for Child Health and Development between 2006 and 2019 were retrospectively reviewed. Clinical data on disease phenotype, laboratory parameters, endoscopic findings, and treatment of patients whose diagnosis changed to CD (cCD) were compared to those of patients whose diagnosis remained UC (rUC). Results: Among the 111 patients initially diagnosed with UC, 11 (9.9%) patients were subsequently diagnosed with CD during follow-up. There was no significant difference between the cCD and rUC groups in terms of sex, age at initial diagnosis, and the extent and severity of disease at initial diagnosis. Albumin and hemoglobin levels were significantly lower in the cCD group than in the rUC group. The proportion of patients who required biologics was significantly higher in the cCD group than in the rUC group (p<0.05). Conclusion Approximately 10% children initially diagnosed with UC were subsequently diagnosed with CD. Hypoalbuminemia and anemia at initial diagnosis and use of biologics could be predictors of this diagnostic change.

Purpose: A change in diagnosis from ulcerative colitis (UC) to Crohn's disease (CD) has been reported in pediatric inflammatory bowel disease; however, only a few clinical characteristics and predictors of this diagnostic change have been reported. We aimed to describe the clinical characteristics of patients with UC who underwent a change in diagnosis to CD and identify variables associated with the change. Methods: The medical records of pediatric patients with UC who were followed up at the National Center for Child Health and Development between 2006 and 2019 were retrospectively reviewed. Clinical data on disease phenotype, laboratory parameters, endoscopic findings, and treatment of patients whose diagnosis changed to CD (cCD) were compared to those of patients whose diagnosis remained UC (rUC). Results: Among the 111 patients initially diagnosed with UC, 11 (9.9%) patients were subsequently diagnosed with CD during follow-up. There was no significant difference between the cCD and rUC groups in terms of sex, age at initial diagnosis, and the extent and severity of disease at initial diagnosis. Albumin and hemoglobin levels were significantly lower in the cCD group than in the rUC group. The proportion of patients who required biologics was significantly higher in the cCD group than in the rUC group (p<0.05). Conclusion Approximately 10% children initially diagnosed with UC were subsequently diagnosed with CD. Hypoalbuminemia and anemia at initial diagnosis and use of biologics could be predictors of this diagnostic change.

The patient was a 13-­year-­old male who had experienced periodic fever since he was in the 5th grade. After he moved into the 8th grade, he developed fever, abdominal pain, and vomiting continuously, which caused him to miss school or leave school early once every one to two weeks. Various Kampo extract preparations prescribed at a nearby clinic did not improve the symptoms, and the patient was referred to our hospital. Ad­ministration of bukuryoshigyakuto and shokenchuto reduced the fatigue, but the fever could not be controlled. Subsequently, a grasp of “the disease byakugobyo turned into fever” was made, and he was put on byaku­gokassekisanryo, which eliminated the fever. Therapeutic approaches for disease known as the disease ebyo that arises after treatment of cold damage diseases (shokan) are discussed in the On Pulse Syndrome Complex and Treatment of Bai He, Hu Huo, and Yin Yang Du Diseases section of the synopsis of prescriptions of the golden chamber “Kinkiyoryaku”. Children, especially adolescents, are prone to fall ill because of rapid changes of the body, including sexual maturation. Clinical manifestations of such illnesses further change with growth and maturation, and it can be difficult to find clues for treatment at first glance due to complicated states of yin­yang and deficiency-­excess. As seen in this case, illnesses of adolescence is likely to include un­diagnosed cases of byakugobyo that manifests clinical signs similar to those of ebyo.

A 15-year-old boy with coronary sinus type atrial septal defect (CS-ASD) was surgically treated with 3-port totally endoscopic technique. The patient was set in a left semi-lateral position. A 3 cm skin incision retracted by a small wound protector, a trocar for the endoscope, and a trocar for left-handed instruments were placed in the right antero-lateral chest. Cardio-pulmonary bypass was established via groin cannulation. After cardioplegic arrest, the CS-ASD was favorably exposed through the left atriotomy, and closed using a bovine pericardial patch. The total operation time was 112 min. The post-operative course was uneventful. Instead of the traditional median sternotomy and right atriotomy, small right thoracotomy and left atriotomy may be a promising alternative for closure of CS-ASD.

A 68-year-old man was referred to our hospital for mitral valve stenosis, tricuspid valve insufficiency and atrial fibrillation. We performed mitral valve replacement, tricuspid valve plasty, and the MAZE operation through a right small thoracotomy under endoscopic assistance. He was discharged uneventfully 7 days after the operation. However, about 2 months later, he developed pericardial effusion, right pleural effusion, and leg edema implying as having right heart failure. Although he was treated with diuretics and steroids, improvement was temporary and he was hospitalized repeatedly. Cardiac catheterization demonstrated dip and plateau pattern of the right ventricular pressure curve. We diagnosed that he has constrictive pericarditis, although the finding of the chest CT was non-specific without remarkable thickening or calcification of the pericardium. We performed pericardiectomy through median sternotomy without pump assist. Leather-like thickening of the pericardium was recognized in the right, anterior, and inferior portion. Resection of the thickened pericardium led to instantaneous improvement of right ventricular motion and drop of central venous pressure. The patient is in NYHA Class I, one year after pericardiectomy. Constrictive pericarditis could occur even after minimally invasive surgery, and that possibility should be kept in mind if intractable right heart failure persists.

Background: Rotavirus vaccines were introduced in Japan in November 2011. We evaluated the subsequent reduction of the health-care burden of rotavirus gastroenteritis. Methods: We conducted active surveillance for rotavirus gastroenteritis among children under 5 years old before and after the vaccine introduction. We surveyed hospitalization rates for rotavirus gastroenteritis in children in Tsu City, Mie Prefecture, Japan, from 2007 to 2015 and surveyed the number of outpatient visits at a Tsu City clinic from 2010 to 2015. Stool samples were obtained for rotavirus testing and genotype investigation. We assessed rotavirus vaccine coverage for infants living in Tsu City. Results: In the pre-vaccine years (2007-2011), hospitalization rates for rotavirus gastroenteritis in children under 5 years old were 5.5, 4.3, 3.1 and 3.9 cases per 1000 person-years, respectively. In the post-vaccine years (2011-2015), the rates were 3.0, 3.5, 0.8 and 0.6 cases per 1000 person-years, respectively. The hospitalization rate decreased significantly in the 2013-2014 and 2014-2015 seasons compared to the average of the seasons before vaccine introduction (p < 0.0001). In one pre-vaccine year (2010-2011), the number of outpatient visits due to the rotavirus infection was 66. In the post-vaccine years (2011-2015), the numbers for each season was 23, 23, 7 and 5, respectively. The most dominant rotavirus genotype shifted from G3P[8] to G1P[8] and to G2P[4]. The coverage of one dose of rotavirus vaccine in Tsu City was 56.5% in 2014. Conclusion: After the vaccine introduction, the hospitalization rates and outpatient visits for rotavirus gastroenteritis greatly decreased.

Portal vein thrombosis (PVT) is a rare but serious postoperative complication of pancreaticoduodenectomy (PD). We reported a case of late-onset postoperative PVT with hemorrhage from the common hepatic artery (CHA) in a 73-year-old man who underwent pylorus-preserving pancreaticoduodenectomy (PPPD) for duodenum papilla cancer, followed by reconstruction using the modified Child's technique. The pancreaticojejunostomy was achieved by end-to-side, 2-layer invagination anastomosis without pancreatic duct stenting. Drain removal and hospital discharge were scheduled on postoperative day (POD) 18, but blood-stained fluid in the drain and sudden hematemesis were noted. Emergency surgery was performed because PVT and imaging findings were suggestive of necrosis of the lifted jejunum. Although no jejunal necrosis was identified during surgery, bleeding from the side of the CHA was detected and the bleeding point was suture-closed to achieve hemostasis. We suspected late-onset postoperative arterial hemorrhage and subsequent hematoma formation, which caused portal vein compression and PVT formation. We chose a conservative treatment strategy for PVT, taking into account the operation time, intraoperative vital signs and blood flow in the portal vein. Despite the complicated postoperative course, he was discharged home in a fully ambulatory state on POD 167.
Aged ; Duodenum ; Emergencies ; Hematemesis ; Hematoma ; Hemorrhage* ; Hemostasis ; Hepatic Artery* ; Humans ; Jejunum ; Necrosis ; Pancreatic Ducts ; Pancreaticoduodenectomy* ; Pancreaticojejunostomy ; Portal Vein* ; Postoperative Complications ; Postoperative Hemorrhage ; Stents ; Venous Thrombosis* ; Vital Signs

A 58-year-old man was admitted with a complaint of exertional chest discomfort. A mass, 53×55×66 mm in size, was detected in the transverse sinus of the pericardium, just cranial to the inter-atrial septum with enhanced chest CT. We performed resection of the tumor under cardiopulmonary bypass. Histopathological findings showed that the tumor was angiomyolipoma originated from the heart. Angiomyolipoma is a benign tumor, most frequently found in the kidney or liver and usually associated with tuberous sclerosis. Extra-cardiac growth of the cardiac angiomyolipoma is extremely rare, and only few have been reported previously.

We have performed trans-axillary aortic valve replacement (TAX AVR) as a new minimally invasive approach in 5 patients with aortic regurgitation since September 2012. The mean age was 63 years (range 25-84 years). TAX AVR was performed through 7 cm skin incision along the right anterior axillary line, and small 4th intercostal thoracotomy. Cardiopulmonary bypass was established through the femoral artery and vein. Intra-thoracic procedures were performed under direct vision, or videoscopic assistance with the aid of minimally invasive surgical apparatus. The mean operative time was 312±44 min, cardiopulmonary bypass 217±38 min, and cross-clamp 139±22 min. The mean ventilation time was 4.2±6.1 h, and length of post-operative hospital stay was 14.8±0.9 days. There was no re-operation for bleeding, or conversion to median sternotomy. TAX AVR can avoid sternotomy, transection of rib, and sacrifice of internal thoracic artery. The postoperative wound was unrecognizable unless the right arm was raised. This approach may promise patients' early rehabilitation and better cosmetic results.