We report a rare case of primary cardiac lymphoma in the right atrium. An 85-year-old woman with severe heart failure was referred to our hospital. The echocardiography revealed a huge tumor occupying the right atrial cavity. We conducted an emergency operation to resect the tumor. However, as the tumor strongly adhered to the wall of the right atrium and tricuspid valve, we performed partial resection of the tumor to improve hemodynamics. The pathological examination of the tumor was consistent with malignant lymphoma of B-cell origin. Although the postoperative chemotherapy was effective to reduce a volume of the tumor, the patient died because of the adverse reaction to medication.

Object: We validated the adequacy of using Palliative Prognostic Index (PPI) as a prognostic method for medical oncology patients. Method: PPI was measured for patients with advanced cancer admitted to our department from May 2015 to June 2016.Result: There were 45 patients analyzed. When classified into three groups according to the score of PPI, there was a tendency for survival curves to separate according to risk. Especially, there was a statistical difference in survival time between the high-risk group (PPI: ≥6.5) and the low-risk group (PPI: ≤4.0) (median survival time: 11 days vs 39 days, p=0.0048, HR: 2.75, 95%CI: 1.32-5.84). Prognostic accuracy of the PPI≥6.5 is similar to other reports. There is no difference in the accuracy of the prognostic prediction depending on the period from drug therapy to PPI evaluation. It was suggested that the influence of drug therapy on PPI evaluation is small. Discussion: We showed that it is appropriate to use PPI for the prognostic prediction of medical oncology patients.

We studied 73 patients, 70 years of age or older, who underwent aortic valve replacement for aortic stenosis between October, 1990 and October, 2004. There were 31 men and 42 women with a mean age of 75.7±3.6 years. Mechanical valves were implanted in 37 patients, and bioprostheses in 36 patients. Operative mortality was 1 of 73 (1.4%) and the New York Heart Association functional class improved to class I or class II in all of the hospital survivors. Follow-up (100%) extended from 0.3 to 11.6 years (mean 3.7 years). There were 16 late deaths (5.9% per patient-year), including valve-related deaths in 6 patients. The overall survival rates at 5 and 10 years was 74.2% and 44.3%, respectively. The freedom from valve-related events at 5 and 10 years was 78.8% and 78.8%, respectively. The 10-year survival rates and freedom from valve-related events were not different between the patients with mechanical valves and those with bioprostheses. The size of the implanted valve did not influence the late survival or freedom from valve-related events. The outcome after aortic valve replacement in the elderly (70 years and older) was excellent with low operative mortality, and acceptable late mortality and morbidity. Thus, aortic valve replacement for elderly patients should have the same indications as for younger patients. Bioprostheses showed good long-term results with no structural valve deterioration, thromboembolism, or bleeding events. Mechanical valves, which required the maintenance of an anticoagulant therapy, were also useful with acceptable late morbidity. The long-term results with small valves (≤19mm) were comparable to the results with large valves (>19mm) in the elderly. Thus, the use of these small valves in this particular age group seems to be acceptable.

OBJECTIVES: This study evaluated color differences (ΔEs) and translucency parameter changes (ΔTPs) of various computer-aided design/computer-aided manufacturing (CAD/CAM) blocks after immersion in coffee. MATERIALS AND METHODS: Eight CAD/CAM blocks and four restorative composite resins were evaluated. The CIE L*a*b* values of 2.0 mm thick disk-shaped specimens were measured using the spectrophotometer on white and black backgrounds (n = 6). The ΔEs and ΔTPs of one day, one week, and one month immersion in coffee or water were calculated. The values of each material were analyzed by two-way ANOVA and Tukey's multiple comparisons (α = 0.05). The ΔEs after prophylaxis paste polishing of 1 month coffee immersion specimens, water sorption and solubility were also evaluated. RESULTS: After one month in coffee, ΔEs of CAD/CAM composite resin blocks and restorative composites ranged from 1.6 to 3.7 and from 2.1 to 7.9, respectively, and ΔTPs decreased. The ANOVA of ΔEs and ΔTPs revealed significant differences in two main factors, immersion periods and media, and their interaction except for ΔEs of TEL (Telio CAD, Ivoclar Vivadent). The ΔEs significantly decreased after prophylaxis polishing except GRA (Gradia Block, GC). There was no significant correlation between ΔEs and water sorption or solubility in water. CONCLUSIONS: The ΔEs of CAD/CAM blocks after immersion in coffee varied among products and were comparable to those of restorative composite resins. The discoloration of CAD/CAM composite resin blocks could be effectively removed with prophylaxis paste polishing, while that of some restorative composites could not be removed.
Coffee* ; Composite Resins ; Immersion* ; Solubility ; Water

Objective: Hospitals throughout Japan are being integrated and reorganized under the government's regional medical care plan. However, the effects on cardiovascular surgery practice remain unknown. In the year 2016, our institution employed hospital integration; we report its effects on patients with type A acute aortic dissection who underwent emergency surgery. Methods: This study included 89 patients who underwent emergency surgery for type A acute aortic dissection from May 2012 to December 2020. Evaluation items included preoperative patient factors, number of surgeries, surgical mortality, referral rate, patient transport time, transport distance, number of surgeries performed by young cardiovascular surgeons, and overtime work for surgery. Patients were categorized into pre-(group P: 29 patients) and post-integration (group A: 60 patients) groups, which were retrospectively compared. Results: Preoperative factors were not significantly different between the two groups. Operations accounted for 29 and 60 in groups P and A, respectively; they increased significantly after integration (p=0.005). Surgical mortality was 27.6 and 15% in groups P and A, respectively, with no significant difference (p=0.2). The referral rate was 17 (58.6%) and 21 (35%) patients in groups P and A, respectively; group A displayed a significantly lower referral rate (p=0.04). The interval from the onset of symptoms to arrival at the surgery cite was significantly reduced (p=0.01) in group A (112±140 min) compared to group P (206±201 min). There was no significant difference in the transfer distance between groups P (13.9±14.8 km) and A (13.5±16.2 km). The number of surgeries performed by young surgeons increased in 9 cases (31%) in group P and 34 cases (56.7%) in group A (p=0.02). Overtime work was substantially reduced:446±154 min in group P and 349±112 min in group A. Conclusion: Hospital integration resulted in increased number of acute aortic dissection surgeries and decreased interval time from the onset of symptoms to arrival at the surgery cite. The young surgeons performed more surgeries and reduced their overtime work.