1.Impact of Preanesthetic Blood Pressure Deviations on 30-Day Postoperative Mortality in Non-Cardiac Surgery Patients
Sang-Wook LEE ; Seongyong PARK ; Jin-Young KIM ; Baehun MOON ; Donghee LEE ; Jaewon JANG ; Woo-young SEO ; Hyun-Seok KIM ; Sung-Hoon KIM ; Jiyeon SIM
Journal of Korean Medical Science 2024;39(35):e241-
		                        		
		                        			 Background:
		                        			Blood pressure readings taken before anesthesia often influence the decision to delay or cancel elective surgeries. However, the implications of these specific blood pressure values, especially how they compare to baseline, on postoperative in-hospital 30-day mortality remain underexplored. This research aimed to examine the effect of discrepancies between the baseline blood pressure evaluated in the ward a day before surgery, and the blood pressure observed just before the administration of anesthesia, on the postoperative mortality risks. 
		                        		
		                        			Methods:
		                        			The study encompassed 60,534 adults scheduled for non-cardiac surgeries at a tertiary care center in Seoul, Korea. Baseline blood pressure was calculated as the mean of the blood pressure readings taken within 24 hours prior to surgery. The preanesthetic blood pressure was the blood pressure measured right before the administration of anesthesia. We focused on in-hospital 30-day mortality as the primary outcome. 
		                        		
		                        			Results:
		                        			Our research revealed that a lower preanesthetic systolic or mean blood pressure that deviates by 20 mmHg or more from baseline significantly increased the risk of 30-day mortality. This association was particularly pronounced in individuals with a history of hypertension and those aged 65 and above. Higher preanesthetic blood pressure was not significantly associated with an increased risk of 30-day mortality. 
		                        		
		                        			Conclusion
		                        			We found that a lower preanesthetic blood pressure compared to baseline significantly increased the 30-day postoperative mortality risk, whereas a higher preanesthetic blood pressure did not. Our study emphasizes the critical importance of accounting for variations in both baseline and preanesthetic blood pressure when assessing surgical risks and outcomes. 
		                        		
		                        		
		                        		
		                        	
2.Hepatocellular carcinoma incidence is decreasing in Korea but increasing in the very elderly
Young Eun CHON ; Seong Yong PARK ; Han Pyo HONG ; Donghee SON ; Jonghyun LEE ; Eileen YOON ; Soon Sun KIM ; Sang Bong AHN ; Soung Won JEONG ; Dae Won JUN
Clinical and Molecular Hepatology 2023;29(1):120-134
		                        		
		                        			 Background/Aims:
		                        			A comprehensive analysis of trends in the incidence of hepatocellular carcinoma (HCC) is important for planning public health initiatives. We aimed to analyze the trends in HCC incidence in South Korea over 10 years and to predict the incidence for the year 2028. 
		                        		
		                        			Methods:
		                        			Data from patients with newly diagnosed HCC between 2008 and 2018 were obtained from Korean National Health Insurance Service database. Age-standardized incidence rates (ASRs) were calculated to compare HCC incidence. A poisson regression model was used to predict the future incidence of HCC. 
		                        		
		                        			Results:
		                        			The average crude incidence rate (CR) was 22.4 per 100,000 person-years, and the average ASR was 17.6 per 100,000 person-years between 2008 and 2018. The CR (from 23.9 to 21.2 per 100,000 person-years) and ASR (from 21.9 to 14.3 per 100,000 person-years) of HCC incidence decreased during the past ten years in all age groups, except in the elderly. The ASR of patients aged ≥80 years increased significantly (from 70.0 to 160.2/100,000 person-years; average annual percent change, +9.00%; P<0.001). The estimated CR (17.9 per 100,000 person-years) and ASR (9.7 per 100,000 person-years) of HCC incidence in 2028 was declined, but the number of HCC patients aged ≥80 years in 2028 will be quadruple greater than the number of HCC patients in 2008 (from 521 to 2,055), comprising 21.3% of all HCC patients in 2028. 
		                        		
		                        			Conclusions
		                        			The ASRs of HCC in Korea have gradually declined over the past 10 years, but the number, CR, and ASR are increasing in patients aged ≥80 years. 
		                        		
		                        		
		                        		
		                        	
3.Orbital Apex Syndrome and Central Retinal Vein Occlusion after Blow-out Fracture Repair
Ju Won CHOI ; Chan Woong JOO ; Donghee PARK ; Yong Dae KIM ; Youn Joo CHOI
Journal of the Korean Ophthalmological Society 2022;63(6):561-565
		                        		
		                        			 Purpose:
		                        			To report a case of orbital apex syndrome and central retinal vein occlusion after blow-out fracture repair.Case summary: A 22-year-old man who underwent emergency re-operation in a department of plastic surgery due to pain, decreased visual acuity, and ophthalmoplegia in all direction after orbital blow-out fracture repair was referred to ophthalmologist on postoperative day 2 and there was no improvement in symptoms. He showed severe complications, including optic neuropathy and ophthalmoplegia in all direction, central retinal vein occlusion, and outer retinal disruption caused by orbital apex hemorrhage. Although we were concerned that it was too late, we started high dose steroid intravenous pulse treatment and the visual acuity, ophthalmoplegia, and retinal findings were improved. However, the optic atrophy and visual field defect did not. 
		                        		
		                        			Conclusions
		                        			After a complicated blow-out fracture repair in other department, if a patient shows severely decreased visual acuity or ocular movement limitation, a thorough and immediate ophthalmologic examination is recommended. During ophthalmologic examination, meticulous examination of the entire eye, including the retina, is required, in addition to general orbital complications. A relatively good prognosis can be expected through accurate cause analysis and appropriate treatment for the confirmed abnormal findings. 
		                        		
		                        		
		                        		
		                        	
4.Transient Total Occlusive Attack of the Ophthalmic Artery with Asymptomatic Patent Foramen Ovale
Hyeon Gyu CHOI ; Donghee PARK ; Youn Joo CHOI ; Sung Pyo PARK
Journal of the Korean Ophthalmological Society 2022;63(4):406-411
		                        		
		                        			 Purpose:
		                        			To report a case of transient total occlusive attack of the ophthalmic artery with asymptomatic patent foramen ovale.Case summary: A 31‐year‐old female presented with worsening of intermittent visual loss in her right eye from the previous day. The visual acuity in the right eye was reduced to 0.04 at her first visual examination. In the doctor’s room, her visual acuity in the right eye improved to 1.0 at first; however, after several minutes, it decreased to no light perception. A relative afferent pupillary defect was observed. Following that, fluorescein angiography was performed, and visual acuity improved and worsened repeatedly; corresponding intermittent perfusion and occlusion of the ophthalmic artery were observed during the examination. Further evaluation was performed to determine the cause of intermittent occlusion of the ophthalmic artery; patent foramen ovale was diagnosed. Transient ophthalmic artery occlusion was presumed to have occurred owing to embolism by the patent foramen ovale. Aspirin was used as a prophylaxis. Since then, there have been no recurring symptoms of visual impairment. 
		                        		
		                        			Conclusions
		                        			Patients with ophthalmic diseases such as ophthalmic artery occlusion, retinal artery occlusion, and amaurosis fugax, especially young people, require a thorough assessment to identify potential causes of embolism. 
		                        		
		                        		
		                        		
		                        	
5.Retinal Nerve Fiber Layer-to-Disc Ratio Distinguishing Glaucoma from Nonarteritic Anterior Ischemic Optic Neuropathy
Donghee PARK ; Youn Joo CHOI ; Sung Pyo PARK ; Kyeong Ik NA
Journal of the Korean Ophthalmological Society 2022;63(2):191-201
		                        		
		                        			 Purpose:
		                        			To evaluate the diagnostic value of retinal nerve fiber layer-to-disc ratio (RDR) compared to established parameters including retinal nerve fiber layer thickness (RNFLT), Bruch membrane opening-minimum rim width (BMO-MRW), and Bruch membrane opening-minimum rim area (BMO-MRA) for differentiating between open angle glaucoma (OAG) and nonarteritic anterior ischemic optic neuropathy (NAION). 
		                        		
		                        			Methods:
		                        			This retrospective study included 23 optic disc size-matched normal control eyes and 23 OAG and NAION eyes matched according to global RNFLT. The RDR, RNFLT, BMO-MRW, and BMO-MRA were analyzed; the diagnostic capabilities of these parameters were compared using the area under the receiver operating characteristic curve (AUC). 
		                        		
		                        			Results:
		                        			The global BMO-MRW and total BMO-MRA were lower in the OAG group than in the other two groups (all p < 0.001). RDR was greatest in the OAG group, followed by the healthy and NAION groups (p < 0.001). Between the OAG and NAION groups, the AUCs for temporal inferior BMO-MRW, total BMO-MRA, and RDR were 0.987, 0.996, and 1.000, respectively; these were greater than the temporal inferior RNFLT (0.811; p = 0.005, p = 0.006, and p = 0.006, respectively). 
		                        		
		                        			Conclusions
		                        			RDR could be one of the useful parameters for differential diagnosis in OAG and NAION. 
		                        		
		                        		
		                        		
		                        	
6.Patellofemoral contact mechanics after transposition of tibial tuberosity in dogs
Donghee PARK ; Jinsu KANG ; Namsoo KIM ; Suyoung HEO
Journal of Veterinary Science 2020;21(4):e67-
		                        		
		                        			 Background:
		                        			Tibial tuberosity transposition (TTT) causes caudalization of the patellar ligament insertion in canine medial patellar luxation, which can lead to increases in patellofemoral contact pressure. 
		                        		
		                        			Objectives:
		                        			The purpose of this study is to confirm the effect of patellofemoral contact mechanics after craniolateral and caudolateral transposition of tibial tuberosity in normal canine hindlimbs. 
		                        		
		                        			Methods:
		                        			Craniolateral and caudolateral transposition of tibial tuberosity was performed in 5 specimens, respectively. The pressure was measured in the specimen before TTT, and then in the same specimen after TTT. In this process, data was obtained in 10 specimens. The measurement results were output as visualization data through the manufacturer's software and numerical data through spreadsheet. Based on these 2 data and the anatomical structure of the patellofemoral joint (PFJ) surface, whole measurement area was analysed by dividing into medial, lateral and central area. 
		                        		
		                        			Results:
		                        			In craniolateralization of tibial tuberosity, total, medial, central contact pressure was decreased and lateral contact pressure was not statistically changed lateral contact pressure than normal PFJ. In caudolateralization of tibial tuberosity, total, lateral contact pressure was increased and medial contact pressure was not statistically changed than normal PFJ. Although not statistically significant changed, central contact pressure in caudolateralization of tibial tuberosity was increased in all 5 specimens. 
		                        		
		                        			Conclusions
		                        			These results imply that traditional TTT, prone to caudal shift of patellar tendon, can increase retropatellar pressure may lead to various complications and diseases of the stifle joint. 
		                        		
		                        		
		                        		
		                        	
7.Nonalcoholic Fatty Liver Disease Is Associated with Benign Prostate Hyperplasia
Goh Eun CHUNG ; Jeong Yoon YIM ; Donghee KIM ; Min-Sun KWAK ; Jong In YANG ; Boram PARK ; Seong Joon AN ; Joo Sung KIM
Journal of Korean Medical Science 2020;35(22):e164-
		                        		
		                        			 Background:
		                        			Nonalcoholic fatty liver disease (NAFLD) is associated with a wide spectrum of metabolic abnormalities. This study aimed to evaluate whether NAFLD is associated with benign prostatic hyperplasia (BPH) independent of other risk factors. 
		                        		
		                        			Methods:
		                        			A total of 3,508 subjects who underwent prostate and hepatic ultrasonography were enrolled. NAFLD was diagnosed and graded by ultrasonographic findings. BPH was defined by total prostate volume. 
		                        		
		                        			Results:
		                        			The prevalence of BPH was significantly increased according to NAFLD severity (P < 0.001). The multivariate analysis showed that NAFLD was associated with a 22% increase in the risk of BPH (odds ratio [OR], 1.22; 95% confidence interval [CI], 1.02–1.45). In non-obese subjects, NAFLD was associated with a 41% increase in the risk of BPH (OR, 1.41; 95% CI, 1.14–1.73), and an incremental increase in the risk of BPH according to NAFLD severity was pronounced (adjusted OR [95% CI], 1.32 [1.05–1.68] for mild NAFLD, 1.55 [1.15–2.10] for moderate to severe NAFLD vs. no NAFLD, P for trend = 0.004). However, in the obese population, the association of NAFLD in the risk of BPH was insignificant (P = 0.208). 
		                        		
		                        			Conclusion
		                        			NAFLD is associated with an increased risk of BPH regardless of metabolic syndrome, especially in non-obese subjects. An incrementally increased risk of BPH according to NAFLD severity is prominent in non-obese subjects with NAFLD. Thus, physicians caring for non-obese patients with NAFLD may consider assessing the risk of BPH and associated urologic conditions. 
		                        		
		                        		
		                        		
		                        	
8.Correlation between patient health questionnaire-2 and postoperative pain in laparoscopic cholecystectomy
Yusom SHIN ; Tae Woo PARK ; Huiyoung KIM ; Dong-jin SHIM ; Hochul LEE ; Joo-Duck KIM ; Donghee KANG
Anesthesia and Pain Medicine 2020;15(2):241-246
		                        		
		                        			 Background:
		                        			Postoperative pain is affected by preoperative depression. If the risk of postoperative pain associated with depression can be predicted preoperatively, anesthesiologists and/or surgeons can better manage it with personalized care. The objective of this study was to determine the efficacy of Patient Health Questionnaire-2 (PHQ-2) depression screening tool as a predictor of postoperative pain.  
		                        		
		                        			Methods:
		                        			A total of 50 patients scheduled for elective laparoscopic cholecystectomy with an American Society of Anesthesiologists grade of 1 or 2 were enrolled. They answered the PHQ-2, which consists of two questions, under the supervision of a researcher on the day before the surgery. The numerical rating scale (NRS) scores were assessed at post-anesthesia care unit (PACU), at 24, and 48 postoperative hours, and the amount of intravenous patient-controlled analgesia (IV-PCA) administered was documented at 24, 48, and 72 postoperative hours. At 72 h, the IV-PCA device was removed and the final dosage was recorded. 
		                        		
		                        			Results:
		                        			The NRS score in PACU was not significantly associated with the PHQ-2 score (correlation coefficients: 0.13 [P = 0.367]). However, the use of analgesics after surgery was higher in patients with PHQ-2 score of 3 or more (correlation coefficients: 0.33 [P = 0.018]). 
		                        		
		                        			Conclusions
		                        			We observed a correlation between the PHQ-2 score and postoperative pain. Therefore, PHQ-2 could be useful as a screening test for preoperative depression. Particularly, when 3 points were used as the cut-off score, the PHQ-2 score was associated with the dosage of analgesics, and the analgesic demand could be expected to be high with higher PHQ-2 scores. 
		                        		
		                        		
		                        		
		                        	
9.Comparison of the Efficacy and Safety of Warfarin and Antiplatelet Therapy in Patients with Atrial Fibrillation and End-Stage Renal Disease
Donghee HAN ; Jae Sun UHM ; Jung Tak PARK ; Tae Hoon KIM ; Boyoung JOUNG ; Tae Hyun YOO ; Hui Nam PAK ; Shin Wook KANG ; Moon Hyoung LEE
Korean Journal of Medicine 2019;94(2):191-199
		                        		
		                        			 BACKGROUND/AIMS:
		                        			The optimal strategy for anticoagulation treatment in patients with atrial fibrillation (AF) and end-stage renal disease (ESRD) has not been established. We evaluated the efficacy and bleeding risk of warfarin and antiplatelet agents in patients with AF and ESRD.
		                        		
		                        			METHODS:
		                        			We retrospectively reviewed the medical records of 256 patients with AF and ESRD and included 158 patients (age, 63.7 ± 12.2 years; male sex, n = 103) with a CHA2DS2-VASc score ≥ 1 who were taking warfarin (n = 53) or an antiplatelet agent (n = 105).
		                        		
		                        			RESULTS:
		                        			During the follow-up period (31.0 ± 29.4 months), 10 ischemic events and 29 major bleeding events occurred. The thromboembolic event rate did not significantly differ between the warfarin and antiplatelet groups (1.9% and 8.6%, respectively; p = 0.166). However, the rate of major bleeding events was significantly higher in the warfarin group than it was in the antiplatelet group (32.1% and 11.4%, respectively; p = 0.002). Cox's regression analysis indicated that warfarin was related to an increased risk of major bleeding events (hazard ratio [HR], 3.44; 95% confidence interval [CI], 1.60–7.36; p = 0.001). Conversely, warfarin was not related to a decreased risk of thromboembolic events (HR, 0.34; 95% CI, 0.04–2.70; p = 0.306).
		                        		
		                        			CONCLUSIONS
		                        			In patients with AF and ESRD, warfarin use was associated with an increased risk of bleeding events, compared with antiplatelet agents. 
		                        		
		                        		
		                        		
		                        	
            
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