1.Exploring Household-level Risk Factors for Self-reported Prevalence of Allergic Diseases Among Low-income Households in Seoul, Korea.
Sungchul SEO ; Dohyeong KIM ; Christopher PAUL ; Young YOO ; Ji Tae CHOUNG
Allergy, Asthma & Immunology Research 2014;6(5):421-427
PURPOSE: Indoor risk factors for allergic diseases in low-income households in Korea have been characterized only partially. We evaluated the prevalences of atopic dermatitis, asthma, and allergic rhinitis in Seoul, Korea, to identify key housing and behavioral risk factors of low-income households. METHODS: Statistical analysis of the prevalence of these diseases and various risk factors was conducted using data from a 2010 Ministry of Environment household survey. Logistic regression models were generated using data from 511 low-income household apartments in districts of Seoul. RESULTS: In general, housing factors such as renovation history (P<0.1) and crowding status (P<0.01) were associated with allergic rhinitis, whereas behavioral factors such as frequency of indoor ventilation (P<0.05) and cleaning (P<0.1) were inversely correlated with atopic dermatitis. Indoor smoking was a major trigger of asthma and atopic dermatitis in low-income households (P<0.05). The presence of mold and water leakage in houses were the most important risk factors for all three diseases (P<0.05). CONCLUSIONS: Various risk factors play a role in triggering allergic diseases among low-income households in Seoul, and health or environmental programs mitigating allergic diseases should be tailored to address appropriate housing or behavioral factors in target populations.
Asthma
;
Crowding
;
Dermatitis, Atopic
;
Family Characteristics*
;
Fungi
;
Health Services Needs and Demand
;
Housing
;
Korea
;
Logistic Models
;
Poverty
;
Prevalence*
;
Rhinitis
;
Risk Factors*
;
Seoul
;
Smoke
;
Smoking
;
Ventilation
;
Water
2.Infant Robotic Bilateral Upper Urinary Tract Surgery.
Danesh BANSAL ; Christopher M BEAN ; Brian A VANDERBRINK ; Paul H NOH
Korean Journal of Urology 2014;55(4):288-291
We describe a case of robot-assisted laparoscopic bilateral upper urinary tract surgery in a 4-month-old infant for complex bilateral upper urinary tract duplication anomalies.
Humans
;
Infant*
;
Pediatrics
;
Robotics
;
Urinary Tract*
3.GIS-based Association Between PM10 and Allergic Diseases in Seoul: Implications for Health and Environmental Policy.
Sungchul SEO ; Dohyeong KIM ; Soojin MIN ; Christopher PAUL ; Young YOO ; Ji Tae CHOUNG
Allergy, Asthma & Immunology Research 2016;8(1):32-40
PURPOSE: The role of PM10 in the development of allergic diseases remains controversial among epidemiological studies, partly due to the inability to control for spatial variations in large-scale risk factors. This study aims to investigate spatial correspondence between the level of PM10 and allergic diseases at the sub-district level in Seoul, Korea, in order to evaluate whether the impact of PM10 is observable and spatially varies across the subdistricts. METHODS: PM10 measurements at 25 monitoring stations in the city were interpolated to 424 sub-districts where annual inpatient and outpatient count data for 3 types of allergic diseases (atopic dermatitis, asthma, and allergic rhinitis) were collected. We estimated multiple ordinary least square regression models to examine the association of the PM10 level with each of the allergic diseases, controlling for various sub-district level covariates. Geographically weighted regression (GWR) models were conducted to evaluate how the impact of PM10 varies across the sub-districts. RESULTS: PM10 was found to be a significant predictor of atopic dermatitis patient count (P<0.01), with greater association when spatially interpolated at the sub-district level. No significant effect of PM10 was observed on allergic rhinitis and asthma when socioeconomic factors were controlled for. GWR models revealed spatial variation of PM10 effects on atopic dermatitis across the sub-districts in Seoul. The relationship of PM10 levels to atopic dermatitis patient counts is found to be significant only in the Gangbuk region (P<0.01), along with other covariates including average land value, poverty rate, level of education and apartment rate (P<0.01). CONCLUSIONS: Our findings imply that PM10 effects on allergic diseases might not be consistent throughout Seoul. GIS-based spatial modeling techniques could play a role in evaluating spatial variation of air pollution impacts on allergic diseases at the sub-district level, which could provide valuable guidelines for environmental and public health policymakers.
Air Pollution
;
Asthma
;
Dermatitis
;
Dermatitis, Atopic
;
Education
;
Environmental Policy*
;
Epidemiologic Studies
;
Humans
;
Inpatients
;
Korea
;
Outpatients
;
Particulate Matter
;
Poverty
;
Public Health
;
Rhinitis
;
Risk Factors
;
Seoul*
;
Socioeconomic Factors
;
Spatial Analysis
4.Laparoscopic partial nephrectomy for renal tumours: early experience in Singapore general hospital.
Mohd Zam Nor AZHARI ; Yeh Hong TAN ; Paul Anthony SUNGA ; Sidney K H YIP ; Christopher W S CHENG
Annals of the Academy of Medicine, Singapore 2009;38(7):576-575
INTRODUCTIONTo review the perioperative and short-term outcome of all laparoscopic partial nephrectomies (LPN) performed in a single institution.
MATERIALS AND METHODSThirteen consecutive patients who underwent LPN since the beginning of the programme in March 2002 to January 2008 were enrolled. Demographic, perioperative and follow-up data were retrospectively collected. Transperitoneal approach was used in all cases, and vascular control was achieved with the use of a laparoscopic Satinsky clamp or vascular tape. The tumour was excised using cold scissors. Transected intrarenal vessels were suture ligated and the parenchymal defect was closed primarily with absorbable suture over a bolster.
RESULTSThirteen patients underwent a total of 14 LPN. The median age of patients was 60 years (range, 41 to 77). The mean tumour size was 24 +/- 11.4 (2SD) mm. The mean operative time was 228 +/- 129 (2SD) minutes and median warm ischaemia time was 35 minutes (range, 24 to 68). Postoperatively, serum haemoglobin level decreased by a mean of 1.4 +/- 2.5 (2SD) gm/dL and serum creatinine increased by a mean of 22.5 +/- 25.8 (2SD) micromol/L. Twelve out of 13 (92%) patients achieved their baseline serum creatinine level within 1 month postoperatively. There was 1 open conversion (7%), and 2 patients (14%) required blood transfusion perioperatively. Two patients (14%) had transient fever postoperatively due to basal atelectasis. No other complications were encountered. Median patient hospital stay was 4 days (range, 2 to 10). Eleven out of 14 (79%) of the tumours were renal cell carcinoma (RCC). At a median follow-up of 12 months (range, 6 to 53), all except 1 patient with RCC were disease-free.
CONCLUSIONSOur experience has shown that laparoscopic partial nephrectomy is a safe, feasible technique in our centre for patients with small exophytic renal tumours. Patients can be discharged early with preservation of renal function and good early cancer control.
Adult ; Aged ; Carcinoma, Renal Cell ; surgery ; Female ; Hospitals, General ; Humans ; Kidney Neoplasms ; surgery ; Laparoscopy ; methods ; Length of Stay ; Male ; Middle Aged ; Nephrectomy ; methods ; Retrospective Studies ; Singapore
5.Comparison of Surgical Outcomes of the Posterior and Combined Approaches for Repair of Cervical Fractures in Ankylosing Spondylitis
Panya LUKSANAPRUKSA ; Paul William MILLHOUSE ; Victor CARLSON ; Thanase ARIYAWATKUL ; Joshua HELLER ; Christopher Keppel KEPLER
Asian Spine Journal 2019;13(3):432-440
STUDY DESIGN: Retrospective cohort study. PURPOSE: To evaluate surgical outcomes and complications of cervical spine fractures in ankylosing spondylitis (CAS) patients who were treated using either the posterior (P) or combined approach (C). OVERVIEW OF LITERATURE: Ankylosing spondylitis typically causes progressive spinal stiffness that makes patients susceptible to spinal fractures. CAS is a highly unstable condition. There is contradictory evidence regarding which treatment option, the posterior or the combined approach, yields superior clinical results. METHODS: A single institution database was reviewed for data in the period 1999 to 2015. All CAS patients who underwent posterior or combined instrumented fusion were enrolled. We analyzed demographic data, radiographic results, perioperative complications, and postoperative results. RESULTS: Thirty-three patients were enrolled (23 in the P group, 10 in the C group). All patients presented with neck pain after a fall. In the P group, mean operative time was 161.1 minutes (100–327 minutes), and mean estimated blood loss (EBL) was 306.4 mL (50–750 mL). In the C group, 90% of patients underwent a staged procedure, typically with posterior surgery first. Mean EBL was 124 mL (25–337 mL). For posterior surgery, mean EBL was 458.3 mL (400–550 mL). EBL of posterior surgery in the C group was higher but this difference was not significant (p=0.16). Postoperative complication rate was higher in the C group but this difference was not significant (50% vs. 17.4%, p=0.09). In the follow-up period, no late reoperations were performed. Patients who underwent C surgery had a higher rate of neurological improvement but this difference was not significant (p=0.57). CONCLUSIONS: Both P and C provided good clinical results. P surgery had lower EBL, lower postoperative complication rate, and shorter length of stay than C surgery; none of these differences were statistically significant.
Cervical Vertebrae
;
Cohort Studies
;
Female
;
Follow-Up Studies
;
Humans
;
Length of Stay
;
Neck Pain
;
Operative Time
;
Postoperative Complications
;
Reoperation
;
Retrospective Studies
;
Spinal Fractures
;
Spine
;
Spondylitis, Ankylosing
6.Effects of Intraoperative Insufflation With Warmed, Humidified CO₂ during Abdominal Surgery: A Review.
Ju Yong CHEONG ; Anil KESHAVA ; Paul WITTING ; Christopher John YOUNG
Annals of Coloproctology 2018;34(3):125-137
PURPOSE: During a laparotomy, the peritoneum is exposed to the cold, dry ambient air of the operating room (20℃, 0%–5% relative humidity). The aim of this review is to determine whether the use of humidified and/or warmed CO2 in the intraperitoneal environment during open or laparoscopic operations influences postoperative outcomes. METHODS: A review was performed in accordance with PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. The PubMed, OVID MEDLINE, Cochrane Central Register of Controlled Trials and Embase databases were searched for articles published between 1980 and 2016 (October). Comparative studies on humans or nonhuman animals that involved randomized controlled trials (RCTs) or prospective cohort studies were included. Both laparotomy and laparoscopic studies were included. The primary outcomes identified were peritoneal inflammation, core body temperature, and postoperative pain. RESULTS: The literature search identified 37 articles for analysis, including 30 RCTs, 7 prospective cohort studies, 23 human studies, and 14 animal studies. Four studies found that compared with warmed/humidified CO2, cold, dry CO2 resulted in significant peritoneal injury, with greater lymphocytic infiltration, higher proinflammatory cytokine levels and peritoneal adhesion formation. Seven of 15 human RCTs reported a significantly higher core body temperature in the warmed, humidified CO2 group than in the cold, dry CO2 group. Seven human RCTs found lower postoperative pain with the use of humidified, warmed CO2. CONCLUSION: While evidence supporting the benefits of using humidified and warmed CO2 can be found in the literature, a large human RCT is required to validate these findings.
Animals
;
Body Temperature
;
Carbon Dioxide
;
Cohort Studies
;
Humans
;
Inflammation
;
Insufflation*
;
Laparotomy
;
Operating Rooms
;
Pain, Postoperative
;
Peritoneum
;
Pneumoperitoneum
;
Prospective Studies
;
Tissue Adhesions
7.Vanishing Pancreatic Grafts.
Christopher PIVETTI ; In Chul HONG ; Chang H YOO ; Sun LEE ; Kenny KIM ; Gregory EMMANUEL ; Jason KIM ; Romy CHUNG ; Slawomir NIEWIADOMSKI ; Paul WOLF ; R F GITTES
Yonsei Medical Journal 2004;45(6):1169-1172
Comparison of pancreaticoduodenal transplants (PDT) and duct-ligated pancreas transplant (DLPT) were performed using syngeneic and allogeneic studies in rats. Both DLPT and PDT allogeneic grafts showed mild rejection. DLPT groups showed disorganized pathology and acini replaced by fat. Eventually, massive fibrosis was seen in the Islets of Langerhans, as well as rejection cellular infiltrates. In both PDT groups, normal histology was observed in the same period. Thus the effect of duct occlusion is highly detrimental for the grafts.
Animals
;
Graft Rejection/pathology
;
Ligation/adverse effects
;
Pancreas/*pathology
;
Pancreas Transplantation/*adverse effects
;
Pancreatic Ducts/surgery
;
Postoperative Period
;
Rats
;
Rats, Inbred Lew
;
Rats, Sprague-Dawley
;
Research Support, Non-U.S. Gov't
;
Transplantation, Homologous
;
Transplantation, Isogeneic
8.The status on non-communicable disease prevention and control in the Philippines: A systematic review.
Pinlac Paul Adrian V. ; Castillo Eleanor C. ; Guevarra Jonathan P. ; Escartin Ivanhoe C. ; Calauag Ma. Elizabeth I. ; Granada Carmela N. ; Tagunicar Luz B. ; Banda Aurora D. ; Go John Juliard L. ; Kim Jae Kyoun ; Sy Christopher Allu S. ; Maceda Arvin A. ; Glorian Nina G.
Acta Medica Philippina 2015;49(3):19-26
OBJECTIVE: This paper aims to provide concise background information regarding the state of noncommunicable diseases (NCDs) and their risk factors as well as the existing efforts to address them in the Philippines in the last 25 years.
METHODS: A desk review of documents and literature review as well as analyses of available statistical data and several consultations with involved government agencies have been made to come up with summary figures and tables.
RESULTS: NCDs as well as metabolic conditions that can potentially lead to NCDs are on the rise in the last score of years. The Philippines, through the Department of Health, has been visionary in leading various projects and activities to fight NCDs over the last two decades, and its efforts are slowly paying off: the prevalence of tobacco use and that of hypertension have decreased over the last 5 years. NCD mortality (including premature deaths) and prevalence of behavioral risk factors, however, generally remain high, and the Philippines needs to accelerate whole-of-society and whole-of-government actions to sustain the gains and attain its NCD targets in the next 10 years or so.
CONCLUSION: The need to strengthen health system interventions and promote accountability of various sectors in addressing NCDs and its risk factors in the country arises. The development of a multisectoral action plan on NCD prevention and control is needed to halt the rise of NCDs in the country.
Human ; Male ; Female ; Health Systems Plans ; Delivery of Health Care
9.Efficacy and Safety of Elvitegravir/Cobicistat/Emtricitabine/Tenofovir Disoproxil Fumarate in Asian Subjects with Human Immunodeficiency Virus 1 Infection: A Sub-Analysis of Phase 3 Clinical Trials.
Jun Yong CHOI ; Somnuek SUNGKANUPARPH ; Thanomsak ANEKTHANANON ; Paul SAX ; Edwin DEJESUS ; Howard EDELSTEIN ; Mark NELSON ; Jennifer DEMORIN ; Hui C LIU ; Raji SWAMY ; Joonwoo BAHN ; SunJin HWANG ; Sang Youn YANG ; Christopher NG ; David PIONTKOWSKY
Infection and Chemotherapy 2016;48(3):219-224
The efficacy and safety of a single tablet regimen (STR) of elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate (E/C/F/TDF) were analyzed in Phase 3 clinical trials in antiretroviral therapy (ART)-naïve and ART-experienced Asian subjects infected with human immunodeficiency virus (HIV)-1. Studies GS-US-236-102 and GS-US-236-103 were randomized, double-blind, placebo-controlled, 144-week studies conducted in ART-naïve subjects, comparing E/C/F/TDF versus efavirenz (EFV)/F/TDF or ritonavir-boosted atazanavir (ATV+RTV) plus emtricitabine/tenofovir DF (F/TDF), respectively. Studies GS-US-236-115 and GS-US-236-121 were randomized, open-label, 96-week long conducted in ART-experienced subjects, who switched to E/C/F/TDF from ritonavir-boosted protease inhibitors (PI+RTV)+F/TDF, or non-nucleoside reverse transcriptase inhibitors (NNRTI)+F/TDF regimens. The E/C/F/TDF appeared to have sustained efficacy and safety and was well tolerated in the small number of ART-naïve and ART-experienced Asian subjects.
Asian Continental Ancestry Group*
;
Atazanavir Sulfate
;
HIV*
;
HIV-1*
;
Humans
;
Humans*
;
Protease Inhibitors
;
Reverse Transcriptase Inhibitors
10.Does humeral fixation technique affect long-term outcomes of total shoulder arthroplasty?
Troy LI ; Kenneth H. LEVY ; Akiro H. DUEY ; Akshar V. PATEL ; Christopher A. WHITE ; Carl M. CIRINO ; Alexis WILLIAMS ; Kathryn WHITELAW ; Dave SHUKLA ; Bradford O. PARSONS ; Evan L. FLATOW ; Paul J. CAGLE
Clinics in Shoulder and Elbow 2023;26(3):245-251
Background:
For anatomic total arthroscopic repair, cementless humeral fixation has recently gained popularity. However, few studies have compared clinical, radiographic, and patient-reported outcomes between cemented and press-fit humeral fixation, and none have performed follow-up for longer than 5 years. In this study, we compared long-term postoperative outcomes in patients receiving a cemented versus press-fit humeral stem anatomic arthroscopic repair.
Methods:
This study retrospectively analyzed 169 shoulders that required primary anatomic total shoulder arthroplasty (aTSA). Shoulders were stratified by humeral stem fixation technique: cementation or press-fit. Data were collected pre- and postoperatively. Primary outcome measures included range of motion, patient reported outcomes, and radiographic measures.
Results:
One hundred thirty-eight cemented humeral stems and 31 press-fit stems were included. Significant improvements in range of motion were seen in all aTSA patients with no significant differences between final cemented and press-fit stems (forward elevation: P=0.12, external rotation: P=0.60, and internal rotation: P=0.77). Patient reported outcome metrics also exhibited sustained improvement through final follow-up. However, at final follow-up, the press-fit stem cohort had significantly better overall scores when compared to the cemented cohort (visual analog score: P=0.04, American Shoulder and Elbow Surgeon Score: P<0.01, Simple Shoulder Test score: P=0.03). Humeral radiolucency was noted in two cemented implants and one press-fit implant. No significant differences in implant survival were observed between the two cohorts (P=0.75).
Conclusions
In this series, we found that irrespective of humeral fixation technique, aTSA significantly improves shoulder function. However, within this cohort, press-fit stems provided significantly better outcomes than cemented stems in terms of patient reported outcome scores.Level of evidence: III.