Comparative studies were made mainly on malignant cases of cholelithiasis in 111 patients with gallstones detected in our regular chekup (group A) during the five-year period from 1985 to 1989 and 67 patients who had gallstones surgically removed together with malignancies (group B) during the same period.
The group A patients representing 4.2% of the total 2, 637 examinees were suspected to suffer from biliary obstruction and malignant tumors involving the digestive system. However, further examination found only one case of biliary tract cancer.
The group B patients account for 20.9% of the total 321 surgery cases. In 37 (55.2%) of the 67 patients, 45 legions were malignant-mostly cancer in the digestive organs. Cancer of the lower portion of the digestive tract was found in 11 patients (29.7%) of the 37. The occult blood test at hospitalization revealed that 8 patients (28.6%) in 28 were positive, and 9 were not clear. Follow-up examination showed the rate of false-positive reaction to blood test stood at 14.3%.
From the foregoing results, to detect cancer of the large intestine at an early stage in the regular medical checkup sponsored by the agricultural cooperative, the occult blood test using the stool of examines alone is not enough. It is high time to introduce endoscopic examinationinto the screening program. In view of the fact that most of the gallstone cases detected at the regular checkup were symptomless, careful followup examinations are deemed necessary with the possibleonset of gallbladder cancer and presence of malignancies in mind.

Laser-Doppler velocimetry (LDV) was used to evaluate the effects of low energy laser irradiation on peripheral circulation disturbance in patients with collagen diseases, progressive systemic sclerosis (PSS) and systemic lupus erythematosus (SLE).
Using a commercially available LDV flometer (Periflux, Perimed KB, Sweden), the response to laser irradiation at the acupuncture points of Tian zhu, Feng chi, Jian jing, Shou san li, Jing qu, He gu, Stellate ganglion, was recorded in 4 patients with PSS and 6 with SLE. The digital pitting scars and Raynaud's phenomenon were observed in all the patients. The low energy of 10mW laser was irradiated for 1 minute at each acupuncture points, and LDV flow values ware recorded in fingertips at room temperature 25±0.5°C. Ten minutes after the laser irradiation, the LDV flow values increased significantly (p<0.5).
Present data suggest that the low energy laser irradiation to patients with PSS or SLE who suffered from circulation disturbance is effective.

Surgical proficiency significantly impacts cardiovascular surgery outcomes. Regular training for surgical procedures is essential. Since 2018, cardiovascular surgery's specialty system has mandated Off the Job Training (OffJT), defined as non-clinical work training that fulfills certification criteria. A minimum of 30h of OffJT is required for specialty acquisition. Presently, a review is being conducted to examine disparities in OffJT credit acquisition across various facilities and the lack of a standardized OffJT curriculum. This report details a survey of the current OffJT landscape, focusing primarily on executives under 40 years old. We employed a questionnaire-based approach to explore the types of training being conducted and the innovative strategies being implemented, along with an analysis of the findings.