Short- and Long-term Results of Modified Frey's Procedure in Patients with Chronic Pancreatitis: A Retrospective Japanese Single-Center Study

BACKGROUND: The study aim was to determine the short- and long-term results of surgical drainage procedure for chronic pancreatitis at a single center in Japan.METHODS: The records of 28 consecutive patients were retrospectively reviewed. All patients underwent surgery at Kobe University Hospital between June 1999 and April 2013. Long-term follow-up was performed in all patients for a median period of 77 months.RESULTS: The 26 men (93%) and 2 women (7%) had a mean age of 47 years. The etiology of pancreatitis was chronic alcohol abuse in 24 patients (86%). The major indication for surgery was persistent symptoms (97%). Modified Frey's procedure in 21 patients, lateral pancreaticojejunostomy (LPJ) in 6 patients, LPJ and distal pancreatectomy in one patient, were performed. There was no postoperative mortality. Postoperative morbidity occurred in 6 patients (21%). The percentage of pain-free patients after surgery was 97%, and further acute exacerbation was prevented in 97%. Two patients (6%) required subsequent surgery for infectious pancreatic cyst and intraabdominal abscess. Of the patients that completed follow-up, 13 (46%) had diabetes mellitus, including 5 patients (19%) with new-onset diabetes, and 6 patients (19%) developed pancreatic exocrine insufficiency.CONCLUSIONS: Modified Frey's procedure is safe, feasible, and effective to manage chronic pancreatitis. The technique prevents further exacerbations and maintains appropriate pancreatic endocrine and exocrine function

草津白根山湯釜南東で観測される季節変化に関する調査

A variation in geomagnetic total intensity suggestive of thermal demagnetization was observed in the subsurface near Yugama Crater Lake from April to July 2018, and a decrease of about 1.5 nT in total intensity was observed from March to May at the continuous station Q in south-east flank of Yugama Crater Lake from the following year onward. In order to distinguish this seasonal variation from variations due to thermal demagnetization or magnetic susceptibility, it is necessary to identify the cause of the seasonal variation. In this paper, we examine the surface temperature variation by focusing on the seasonal variation in net solar radiation during the snowmelt season among the causes due to seasonal variation of either solar activity or meteorology. Since no meteorological observations were made at the station Q, we used meteorological data published by the Japan Meteorological Agency to estimate the surface temperature. As a result, the temperature variation estimated from net solar radiation was small compared to the significant step-like variation in net solar radiation during the snowmelt season. The estimated surface temperatures were similar to those calculated from soil temperatures measured at the station Q. The seasonal variations in total intensity during the snowmelt season were not due to variations in surface temperature associated with the variation in net solar radiation, and may be due to other causes.令和4年度 Conductivity Anomaly研究会日時：令和4年12月26日（月）09:25-18:30, 12月27日（火）09:00-16:30場所：京都大学防災研究所連携研究棟3階301号室およびZoo