A 3-month-old girl of univentricular heart of left ventricular type with atresia of left atrioventricular valve (LAVV) and coarctation of the aorta (Co/AO) is presented. UCG and angiography revealed concordant AV connection with straddling RAVV with transposed great arteries [SDDT]. The following pressures (in mmHg) were noted on catheterization: RA mean 1 (a=3, v=1), LA mean 12 (a=17, v=14), LV 84/0/8, Ao 81/41, and PA 74/39. Patent foramen ovale (PFO) was restrictive and balloon atrioseptostomy was not feasible. Blalock-Hanlon atrial septectomy (8×6mm), subclavian flap aortoplasy (SFA) and pulmonary arterial banding were performed simultaneously under bilateral thoracotomy. Acute renal failure occurred after surgery and the girl required peritoneal dialysis for 5 days. At 6 months after surgery, girl is doing well. There will be a predictable fall in pulmonary vascular resistance after atrial septectomy and SFA with a ligation of PDA may result transient increase in systemic resistance. Therefore, atrial septectomy and SFA in conjunction with pulmonary arterial banding should be done simultaneously.

In order to assess the prevalence of carotid artery disease in patients with arteriosclerosis obliterans (ASO) or aortic aneurysm, 142 patients underwent screening for the presence of carotid atherosclerosis (plaque) with B-mode ultrasonography. Seventy-four (87.1%) of the 85 patients with ASO and 37 (64.9%) of the 57 patients with aortic aneurysm had carotid artery lesions. Of these patients, about half had bilateral lesions. The differences in the prevalence of carotid lesions were not significantly related to age or sex. Prevalence did not differ in relation to the severity or location of the primary lesions. The majority of the carotid lesions were located in the internal carotid arteries. The prevalence of carotid lesions was higher among patients with cerebral infarction than in those without any lesions on computed tomography. These results showing high prevalence of carotid lesions in ASO and aortic aneurysm suggest the usefulness of routine carotid ultrasonographic screening and also that it is important in order to determine the correct treatment for these cases.

Prostate cancer is one of the most common cancers in men. Choline PET or PET/CT has been used to visualize prostate cancer, and high levels of choline accumulation have been observed in tumors. However, the uptake system for choline and the functional expression of choline transporters in prostate cancer are not completely understood. In this study, the molecular and functional aspects of choline uptake were investigated in the LNCaP prostate cancer cell line along with the correlations between choline uptake and cell viability in drug-treated cells. Choline transporter-like protein 1 (CTL1) and CTL2 mRNA were highly expressed in LNCaP cells. CTL1 and CTL2 were located in the plasma membrane and mitochondria, respectively. [3H]Choline uptake was mediated by a single Na+-independent, intermediate-affinity transport system in the LNCaP cells. The anticancer drugs, flutamide and bicalutamide, inhibited cell viability and [3H]choline uptake in a concentration-dependent manner. The correlations between the effects of these drugs on cell viability and [3H]choline uptake were significant. Caspase-3/7 activity was significantly increased by both flutamide and bicalutamide. Furthermore, these drugs decreased CTL1 expression in the prostate cancer cell line. These results suggest that CTL1 is functionally expressed in prostate cancer cells and are also involved in abnormal proliferation. Identification of this CTL1-mediated choline transport system in prostate cancer cells provides a potential new therapeutic target for the treatment of this disease.

In this study, we examined the molecular and functional characterization of choline uptake in the human esophageal cancer cells. In addition, we examined the influence of various drugs on the transport of [3H]choline, and explored the possible correlation between the inhibition of choline uptake and apoptotic cell death. We found that both choline transporter-like protein 1 (CTL1) and CTL2 mRNAs and proteins were highly expressed in esophageal cancer cell lines (KYSE series). CTL1 and CTL2 were located in the plasma membrane and mitochondria, respectively. Choline uptake was saturable and mediated by a single transport system, which is both Na+-independent and pH-dependent. Choline uptake and cell viability were inhibited by various cationic drugs. Furthermore, a correlation analysis of the potencies of 47 drugs for the inhibition of choline uptake and cell viability showed a strong correlation. Choline uptake inhibitors and choline deficiency each inhibited cell viability and increased caspase-3/7 activity. We conclude that extracellular choline is mainly transported via a CTL1. The functional inhibition of CTL1 by cationic drugs could promote apoptotic cell death. Furthermore, CTL2 may be involved in choline uptake in mitochondria, which is the rate-limiting step in S-adenosylmethionine (SAM) synthesis and DNA methylation. Identification of this CTL1- and CTL2-mediated choline transport system provides a potential new target for esophageal cancer therapy.
Cell Death ; Cell Line ; Cell Membrane ; Cell Survival ; Choline Deficiency ; Choline* ; DNA Methylation ; Esophageal Neoplasms* ; Humans ; Mitochondria ; RNA, Messenger ; S-Adenosylmethionine

Purpose: We investigated the activity of our palliative care team over the past five years and how the new coronavirus infection (COVID-19) affects palliative care in our hospital. Methods: We retrospectively compared and analyzed patient data intervened by the Tokyo Medical University Hospital Palliative Care Team from April 2016 to March 2021. Results: There were no major differences in the total number of requests, patient background, reasons for request, and reasons for intervention from FY2016 to FY2020. In FY2020, the number of patients with PS0 at the time of request and who discharged from the hospital at home increased significantly compared to other years. Discussion and Conclusion: From the results of this survey, it was found that the introduction of palliative care from an early stage is progressing. On the other hand, because the outbreak of COVID-19 has restricted visits to inpatients at our hospital, it is possible that the proportion of patients who choose home care is increasing. Intervention requests to the palliative care team did not change significantly over the 5-year period without the impact of the COVID-19 pandemic. Strict visitation restrictions for inpatients have become barriers to the practice of palliative care.

BACKGROUND/AIMS: To determine the nutritional markers important for assessing the degree of pancreatic insufficiency due to chronic pancreatitis in routine clinical practice. METHODS: A total of 137 patients with chronic pancreatitis were followed up for more than 1 year. They were divided into two groups: a pancreatic diabetes mellitus (DM) group, consisting of 47 patients undergoing medical treatment for DM of pancreatic origin, and a nonpancreatic DM group, consisting of 90 other patients (including 86 patients without DM). Serum albumin, prealbumin, total cholesterol, cholinesterase, magnesium, and hemoglobin were compared between the two groups. RESULTS: The total cholesterol was significantly lower in the pancreatic than the nonpancreatic DM group (164 mg/dL vs 183 mg/dL, respectively; p=0.0028). Cholinesterase was significantly lower in the former group (263 U/L vs 291 U/L, respectively; p=0.016). Among the 37 patients with nonalcoholic pancreatitis, there was no difference in the cholinesterase levels between the pancreatic and nonpancreatic (296 U/L vs 304 U/L, respectively; p=0.752) DM groups, although cholesterol levels remained lower in the former (165 mg/dL vs 187 mg/dL, respectively; p=0.052). CONCLUSIONS: Cholinesterase levels are possibly affected by concomitant alcoholic liver injury. The total cholesterol level should be considered when assessing pancreatic insufficiency due to chronic pancreatitis.
Adult ; Aged ; Aged, 80 and over ; Cholesterol/*blood ; Cholinesterases/blood ; Diabetes Mellitus, Type 2/complications ; Exocrine Pancreatic Insufficiency/*blood/etiology ; Female ; Follow-Up Studies ; Humans ; Liver Cirrhosis, Alcoholic/blood ; Male ; Middle Aged ; Nutritional Status ; Pancreas/enzymology ; Pancreatitis, Alcoholic/blood/complications ; Pancreatitis, Chronic/blood/*complications ; Serum Albumin/analysis

BACKGROUND/AIMS: In distal malignant biliary obstruction, an antireflux metal stent (ARMS) with a funnel-shaped valve is effective as a reintervention for metal stent occlusion caused by reflux. This study sought to evaluate the feasibility of this ARMS as a first-line metal stent. METHODS: Patients with nonresectable distal malignant biliary obstruction were identified between April and December 2014 at three Japanese tertiary centers. We retrospectively evaluated recurrent biliary obstruction and adverse events after ARMS placement. RESULTS: In total, 20 consecutive patients were included. The most common cause of biliary obstruction was pancreatic cancer (75%). Overall, recurrent biliary obstruction was observed in seven patients (35%), with a median time to recurrent biliary obstruction of 246 days (range, 11 to 246 days). Stent occlusion occurred in five patients (25%), the causes of which were sludge and food impaction in three and two patients, respectively. Stent migration occurred in two patients (10%). The rate of adverse events associated with ARMS was 25%: pancreatitis occurred in three patients, cholecystitis in one and liver abscess in one. No patients experienced non-occlusion cholangitis. CONCLUSIONS: The ARMS as a first-line biliary drainage procedure was feasible. Because the ARMS did not fully prevent stent dysfunction due to reflux, further investigation is warranted.
Arm ; Asian Continental Ancestry Group ; Cholangiopancreatography, Endoscopic Retrograde ; Cholangitis ; Cholecystitis ; Drainage ; Humans ; Liver Abscess ; Pancreatic Neoplasms ; Pancreatitis ; Pilot Projects* ; Retrospective Studies ; Sewage ; Stents*

BACKGROUND/AIMS: Stent migration occurs frequently, but the prevention of complications resulting from covered self-expandable metal stents (C-SEMSs) remains unresolved. We prospectively assessed a newly developed C-SEMS, a modified covered Zeo stent (m-CZS), in terms of its antimigration effect. METHODS: Between February 2010 and January 2011, an m-CZS was inserted into 42 patients (31 initial drainage cases and 11 reintervention cases) at a tertiary referral center and three affiliated hospitals. The laser-cut stent was flared for 1.5 cm at both ends, with a 1 cm raised bank located 1 cm in from each flared end. The main outcome of this study was the rate of stent migration, and secondary outcomes were the rate of recurrent biliary obstruction (RBO), the time to RBO, the frequencies of complications, and overall survival. RESULTS: Of the 31 patients with initial drainage, stent migration occurred in four (12.9%, 95% confidence interval, 5.1% to 29.0%), with a mean time of 131 days. RBO occurred in 18 (58%), with a median time to RBO of 107 days. Following previous C-SEMS migration, seven of 10 patients (70%) did not experience m-CZS migration until death. CONCLUSIONS: m-CZSs with antimigration properties effectively, although not completely, prevented stent migration after stent insertion.
Aged ; Aged, 80 and over ; Alloys ; Carcinoma/*complications ; Cholestasis/etiology/*therapy ; Digestive System Neoplasms/*complications ; Drainage ; Equipment Design ; Feasibility Studies ; Female ; Humans ; Kaplan-Meier Estimate ; Lymphatic Metastasis ; Male ; Middle Aged ; *Prosthesis Failure ; Recurrence ; Reoperation ; *Stents/adverse effects ; Time Factors