1.Correction: Effects of Health Information Technology on Malpractice Insurance Premiums.
Healthcare Informatics Research 2015;21(3):209-209
The authors and their respective affiliations should be corrected.
2.Change of the Upper Urinary Tracts and Occurrence of Metabolic Acidosis after Three Different Orthotopic Bladder Substitutions.
Jinhyung LEE ; Choung Soo KIM ; Hanjong AHN
Korean Journal of Urology 1998;39(12):1254-1258
PURPOSE: Orthotopic neobladder following radical cystectomy are currently preferred to the other urinary diversions. We have compared three different ureteroenteric anastomoses regarding change of the upper urinary tracts and evaluated correlation between the length of bowel used for bladder reconstruction and metabolic acidosis. MATERIALS AND METHODS: Between Sep. 92 and Jul. 97, 37 patient(range 34-69 yrs) with bladder cancer underwent an orthotopic Mainz pouch with antireflux submucosal tunnel(n=10), an ileal low-pressure bladder substitute with direct ureteroileal anastomosis(Stuffier, n=15) and an ileal W-neobladder with serouslined ertramural tunnel(Ghoneim, n=12) following radical cystectomy Mean follow up was 22 months(7-64 twos). IVP and VCUG were performed at 6, 12 months postoperatively and annually thereafter. The measurement of serum electrolyte and/or arterial blood gas analysis were carried out every 3-6 months. RESULTS: The vesicoureteral reflux occurred in 37%(11/30 renal unit) with Stuffier pouch, 10%(2/20) with Mainz pouch, and none with Ghoneim(p=0.01). Moderate to severe hydronephrosis resulting from reflux was noted in 4 renal units with Stuffier pouch, while an atrophic kidney due to obstruction at ureteroenteric anastomosis was noted with each Mainz pouch and Ghoneim. Metabolic acidosis was identified in 5 patients(33%) with an Stuffier pouch whereas it was noted in less than 10% with Mainz pouch and Ghoneim(p=0.07). Two patients with deteriorated renal function need bicarbonate replacement therapy for correction of metabolic acidosis. CONCLUSIONS: Although most patients with direct ureteroileal anastomosis preserved renal function, antireflux ureteroenteric anastomosis using submucosal tunnel or serous-lined extramural tunnel is better in terms of occurrence of hydronephrosis and vesicoureteral reflux. The length of bowel less than 45cm used for bladder reconstruction may avoid metabolic acidosis
Acidosis*
;
Blood Gas Analysis
;
Cystectomy
;
Follow-Up Studies
;
Humans
;
Hydronephrosis
;
Kidney
;
Urinary Bladder Neoplasms
;
Urinary Bladder*
;
Urinary Diversion
;
Urinary Tract*
;
Vesico-Ureteral Reflux
3.Effects of Health Information Technology on Malpractice Insurance Premiums.
Healthcare Informatics Research 2015;21(2):118-124
OBJECTIVES: The widespread adoption of health information technology (IT) will help contain health care costs by decreasing inefficiencies in healthcare delivery. Theoretically, health IT could lower hospitals' malpractice insurance premiums (MIPs) and improve the quality of care by reducing the number and size of malpractice. This study examines the relationship between health IT investment and MIP using California hospital data from 2006 to 2007. METHODS: To examine the effect of hospital IT on malpractice insurance expense, a generalized estimating equation (GEE) was employed. RESULTS: It was found that health IT investment was not negatively associated with MIP. Health IT was reported to reduce medical error and improve efficiency. Thus, it may reduce malpractice claims from patients, which will reduce malpractice insurance expenses for hospitals. However, health IT adoption could lead to increases in MIPs. For example, we expect increases in MIPs of about 1.2% and 1.5%, respectively, when health IT and labor increase by 10%. CONCLUSIONS: This study examined the effect of health IT investment on MIPs controlling other hospital and market, and volume characteristics. Against our expectation, we found that health IT investment was not negatively associated with MIP. There may be some possible reasons that the real effect of health IT on MIPs was not observed; barriers including communication problems among health ITs, shorter sample period, lower IT investment, and lack of a quality of care measure as a moderating variable.
California
;
Delivery of Health Care
;
Electronic Health Records
;
Health Care Costs
;
Health Information Systems
;
Humans
;
Insurance*
;
Investments
;
Malpractice*
;
Medical Errors
;
Medical Informatics*
4.Trimix Intracavernosal Injection Therapy in Patients with Erectile Dysfunction: Long-term Follow-up Result.
Tae Gyu CHUNG ; Minsu PARK ; Taehyo KIM ; Jinhyung LEE ; Tai Young AHN
Korean Journal of Urology 1998;39(11):1129-1135
PURPOSE: Vasoactive pharmacotherapy is now being widely used as practical and reliable method for the treatment of the patients with erectile dysfunction. The synergistic effect and low drug volume of each vasoactive drug in polypharmacotherapy for erectile dysfunction have made it possible to reduce both systemic and local complications with excellent success rate. We evaluated the treatment outcome of intracavernosal injection therapy with Trimix(the mixture of papaverine, phentolamine and prostaglandin E1). MATERIALS AND METHOD: From July 1993 to June 1997, 1000 patients with erectile dysfunction underwent a trial of intracavernous self injection therapy with Trimix(the mixture of papaverine 4.8mg, phentolamine 0.2mg and prostaglandin E1 1.8 microgram in 0.2ml). Underlying diseases were diabetes mellitus (33.1%), hypertension(7.5%) and others(12.3%). 471(47.1%) patients had no underlying disease. The volume of drug used ranged from 0.03 to 0.6ml(average: 0.18ml). RESULTS: After a mean follow-up of 10.9 months(3-44 months), 524 patients stayed on the home injection program. The drop-out rate was 47.6% with most of the cases during early home phase. The reasons for drop-out were inadequate response to medication, failure of injection, return of spontaneous erection, switch to other treatments, priapism, fear of needle or injection, loss of interest and economic reason. 88.3% of patients and 85.3% of the partners were satisfied wilts the result of home injection program. Priapism(3.9%), pain or discomfort(2.4%) and granuloma on injection site(1.5%) were noticeable complications, but corporal fibrosis and systemic side effect were not noticed. CONCLUSIONS: Trimix intracavernosal injection therapy is minimally invasive, simple, relatively safe and most of all, very effective method for the treatment of the patients with erectile dysfunction.
Alprostadil
;
Diabetes Mellitus
;
Drug Therapy
;
Erectile Dysfunction*
;
Fibrosis
;
Follow-Up Studies*
;
Granuloma
;
Humans
;
Male
;
Needles
;
Papaverine
;
Phentolamine
;
Priapism
;
Treatment Outcome
6.Impact of family history of prostate cancer on disease progression for prostatic cancer patients undergoing active surveillance: A systematic review and meta-analysis
Jinhyung JEON ; Jae Heon KIM ; Jee Soo HA ; Won Jae YANG ; Kang Su CHO ; Do Kyung KIM
Investigative and Clinical Urology 2024;65(4):315-325
Purpose:
To evaluate how a family history of prostate cancer influences the progression of the disease in individuals with prostate cancer undergoing active surveillance.
Materials and Methods:
We conducted a thorough literature search in PubMed/MEDLINE, Embase, and Cochrane Library up to June 2023. This systematic review was registered in PROSPERO (CRD42023441853). The study evaluated the effects of family history of prostate cancer (intervention) on disease progression (outcome) in prostate cancer patients undergoing active surveillance (population) and compared them to those without a family history (comparators). For time to disease progression outcomes, the extracted data were synthesized using the inverse variance method on the log hazard ratios scale.
Results:
A total of eight studies were incorporated into this systematic review and meta-analysis. The combined hazard ratio for unadjusted disease progression was 1.06 (95% confidential interval [CI] 0.66–1.69; p=0.82). The combined hazard ratio for adjusted disease progression was 1.31 (95% CI 1.16–1.48; p<0.0001). All the enlisted studies demonstrated high quality based on the Newcastle–Ottawa scale. The certainty of evidence for univariate and multivariate analysis of disease progression was very low and low, respectively. Publication bias for all studies was not significant.
Conclusions
For individuals with prostate cancer opting for active surveillance, a family history of prostate cancer may serve as an independent risk factor associated with an elevated risk of disease progression. Clinicians should be counseled about the increased risk of disease progression in patients with a family history of prostate cancer undergoing active surveillance.
7.Anti-inflammatory effects of the ethanol fraction of Spiraea prunifolia var. simpliciflora in RAW 264.7 cells
Jinhyung SUHR ; Hansol LEE ; Suhwan KIM ; Sung Jin LEE ; Eun Young BAE ; Sun Yung LY
Journal of Nutrition and Health 2022;55(1):59-69
Purpose:
Natural medicinal plant extracts have recently attracted attention as health beneficial foods and potential therapeutic agents for prevention of various diseases. This study was undertaken to measure the anti-inflammatory effect of the ethanol-water fraction obtained from the above-ground portion of Spiraea prunifolia var. simpliciflora, a wild-growing plant in Korea. The final fraction used in this study was the H 2 O-EtOH (40:60) fraction (SP60), which had the highest antioxidant activity, as determined in previous studies.
Methods:
The amounts of nitric oxide (NO), tumor necrosis factor (TNF)-α, interleukin (IL)-6 and IL-1β production were measured in lipopolysaccharide (LPS)-stimulated RAW 264.7 cells exposed to SP60. Western blot was performed to measure the expressions of inducible nitric oxide synthase (iNOS), cyclooxygenase (COX)-2, and the activation of nuclear factor (NF)-κB.
Results:
SP60 exerted no cytotoxicity up to concentrations of 125 μg/mL. The levels of inflammatory cytokines, such as NO, TNF-α, IL-6, and IL-1β, were significantly decreased in LPS-stimulated RAW264.7 cells exposed to SP60. In addition, the expression levels of iNOS, COX-2, and phosphorylated p65 showed a concentration-dependent decrease subsequent to SP60 treatment. These results indicate that SP60 inhibits the LPS-induced production of inflammatory cytokines, iNOS, and COX-2, by inhibiting the activation of NF-κB, which is responsible for the expression of inflammatory mediators.
Conclusion
The results presented in this study indicate that the H 2 O-EtOH (40:60) fraction (SP60) extracted from the above-ground portion of Spiraea prunifolia var. simpliciflora has
8.Patterns of Tumor Recurrence after Nephron Sparing Surgery for Renal Cell Carcinoma.
Jinhyung LEE ; Han CHUNG ; Jun Hyuk HONG ; Jin Soo CHUNG ; Ro Jung PARK ; Hanjong AHN ; Choung Soo KIM
Korean Journal of Urology 1999;40(6):687-690
PURPOSE: We evaluated patterns of tumor recurrence after nephron sparing surgery for sporadic renal cell carcinoma MATERIALS AND METHODS: From December 1992 to October 1997, 20 patients(21 renal units) underwent nephron sparing surgery(partial nephrectomy, wedge resection, enucleation) for sporadic renal cell carcinoma at our department. Mean postoperative followup period was 25.4+/-0.3 months. All patients were evaluated with a medical history, physical examination, blood chemistry, chest x-ray, abdominal CT every 6 months. The clinical course and outcome for patients who had recurrence after nephron sparing surgery were reviewed retrospectively. We also reviewed 122 patients who underwent radical nephrectomy at the same period for patterns of tumor recurrence. RESULTS: Renal cell carcinoma were recurred after nephron sparing surgery in 3 patients (15%, 3/21 renal units:14.2%). Local tumor recurrence with(1) or without(1) metastatic disease developed in 2 patients(10%). Metastatic disease without local tumor recurrence developed in 1 patient(5%). One patient with only local recurrence had positive resection margin. Initial pathological tumor stage and period to tumor recurrence were T3a and 4 months for patient with local recurrence, T2 and 10 months for patient with local recurrence and brain metastasis, T2 and 12 months for patient with lung metastasis without local recurrence. Renal cell carcinoma recurred after radical nephrectomy in 8 patients(6.6%). Local recurrence was none and all recurrent tumors were distant metastasis. CONCLUSIONS: The incidence of metastatic disease after nephron sparing surgery for renal cell carcinoma was not different from that occurring after radical nephrectomy but the incidence of local tumor recurrence after nephron sparing surgery was greater than that occurring after radical nephrectomy. Nephron sparing surgery must be done with enough negative resection margin.
Brain
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Carcinoma, Renal Cell*
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Chemistry
;
Follow-Up Studies
;
Humans
;
Incidence
;
Lung
;
Neoplasm Metastasis
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Nephrectomy
;
Nephrons*
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Physical Examination
;
Recurrence*
;
Retrospective Studies
;
Thorax
;
Tomography, X-Ray Computed
9.Association of Statin Use With Risk of Bipolar Disorder: A Nationwide Cohort Study
Jiwon SHIN ; Jinhyung JUNG ; Kyungdo HAN ; Hyewon KIM ; Hong Jin JEON
Journal of the Korean Society of Biological Psychiatry 2024;31(2):51-58
Objectives:
The association between statin use and depression is well studied, but the studies on the association of statin use and bipolar disorders are limited. Thus, we aimed to investigate the effects of taking statin on risk of bipolar disorder using national claims data of South Korea.
Methods:
A total of 5713871 subjects who did not take statin and were not diagnosed with bipolar disorder before the health examination were included. Among eligible subjects, 315537 subjects started taking statin within 1 year after taking the health examination and 5398334 subjects did not. After 9 years of follow-up, the incidence of bipolar disorder was determined for each group.
Results:
Compared to subjects who were not exposed to statin, subjects who were exposed to statin showed a greater incidence of bipolar disorder and an increased risk of bipolar disorder (hazard ratio [HR]: 1.66; 95% confidence interval [CI]: 1.58 to 1.75), and after adjusting for age, sex, low income, regular exercise, smoking, drinking, diabetes mellitus, hypertension, body mass index, cholesterol and depression (adjusted HR: 1.32; 95% CI: 1.24 to 1.40).
Conclusions
This result showed an increased risk of bipolar disorder after taking statin, but the underlying biological mechanism needs further investigations. This study has clinical implications for patients taking statins, which require early assessment and response in addition to drug treatment and lifestyle modification, considering the possibility that unhealthy lifestyle habits may appear as part of the mood symptoms of bipolar disorder.
10.Association of Statin Use With Risk of Bipolar Disorder: A Nationwide Cohort Study
Jiwon SHIN ; Jinhyung JUNG ; Kyungdo HAN ; Hyewon KIM ; Hong Jin JEON
Journal of the Korean Society of Biological Psychiatry 2024;31(2):51-58
Objectives:
The association between statin use and depression is well studied, but the studies on the association of statin use and bipolar disorders are limited. Thus, we aimed to investigate the effects of taking statin on risk of bipolar disorder using national claims data of South Korea.
Methods:
A total of 5713871 subjects who did not take statin and were not diagnosed with bipolar disorder before the health examination were included. Among eligible subjects, 315537 subjects started taking statin within 1 year after taking the health examination and 5398334 subjects did not. After 9 years of follow-up, the incidence of bipolar disorder was determined for each group.
Results:
Compared to subjects who were not exposed to statin, subjects who were exposed to statin showed a greater incidence of bipolar disorder and an increased risk of bipolar disorder (hazard ratio [HR]: 1.66; 95% confidence interval [CI]: 1.58 to 1.75), and after adjusting for age, sex, low income, regular exercise, smoking, drinking, diabetes mellitus, hypertension, body mass index, cholesterol and depression (adjusted HR: 1.32; 95% CI: 1.24 to 1.40).
Conclusions
This result showed an increased risk of bipolar disorder after taking statin, but the underlying biological mechanism needs further investigations. This study has clinical implications for patients taking statins, which require early assessment and response in addition to drug treatment and lifestyle modification, considering the possibility that unhealthy lifestyle habits may appear as part of the mood symptoms of bipolar disorder.