1.Short-term and long-term oncologic outcomes of self-expandable metallic stent compared with tube decompression for obstructive colorectal cancer:a systematic review and meta-analysis
Annals of Surgical Treatment and Research 2024;106(2):93-105
Purpose:
Patients with obstructive colorectal cancer managed by emergency surgery show high morbidity, mortality, and stoma formation rates. Decompression modalities, including the self-expandable metallic stent (SEMS) and tube drainage (TD), have been used to improve surgical outcomes. However, there have been limited studies comparing the 2 modalities.We performed a meta-analysis on short- and long-term outcomes between SEMS and TD.
Methods:
PubMed, EMBASE, Cochrane Library, and Google Scholar were searched. Data were pooled, and the overall effect size was calculated using random effect models. Outcome measures were perioperative short-term and 3-year survival outcomes.
Results:
We included 20 nonrandomized studies that examined 2,047 patients in the meta-analysis. The meta-analysis showed SEMS had better short-term outcomes in clinical success rate, decompression-related complications, laparoscopic surgery rate, stoma formation rate, and postoperative complication rate with a relative risk (RR) of 0.36 (95% confidence interval [CI], 0.24–0.54; I2 = 20%), 0.32 (95% CI, 0.20–0.50; I 2 = 0%), 0.47 (95% CI, 0.34–0.66; I2 = 87%), 0.34 (95% CI, 0.24–0.49; I2 = 52%), and 0.70 (95% CI, 0.54–0.89, I2 = 28%), respectively. However, there was no significant difference between the 2 groups in 3-year overall survival (RR, 0.99; 95% CI, 0.77–1.27; I2 = 0%).
Conclusion
Although the long-term oncologic impact of SEMS is still unclear compared with TD, the results of this metaanalysis may suggest that SEMS insertion can be performed more successfully and safely and may have benefits for shortterm perioperative outcomes compared with TD. Further studies are warranted to provide more definitive survival results.
3.Plasma presepsin for mortality prediction in patients with sepsis-associated acute kidney injury requiring continuous kidney replacement therapy
Gi-Beop LEE ; Ji Won LEE ; Se-Hee YOON ; Won Min HWANG ; Sung-Ro YUN ; Dong Hoon KOH ; Yohan PARK
Kidney Research and Clinical Practice 2024;43(4):457-468
The reliability of presepsin as a biomarker of sepsis may be reduced in patients with acute kidney injury (AKI) requiring continuous kidney replacement therapy (CKRT). This study analyzed the utility of plasma presepsin values in predicting mortality in patients with AKI requiring CKRT, particularly those with sepsis-associated AKI. Methods: This single-center retrospective study included 57 patients who underwent CKRT, with plasma presepsin measurements, from April 2022 to March 2023; 35 had sepsis-associated AKI. The predictive values of plasma presepsin, as well as Acute Physiology and Chronic Health Evaluation II (APACHE II) and Sequential Organ Failure Assessment (SOFA) scores, for 28-day mortality were analyzed using receiver operating characteristic curves. Multivariate Cox regression analysis was performed to identify risk factors for 28-day mortality in the sepsis-associated AKI subgroup. Results: Overall, plasma presepsin showed a lower area under the curve value (0.636; 95% confidence interval [CI], 0.491–0.781) than the APACHE II (0.663; 95% CI, 0.521–0.804) and SOFA (0.731; 95% CI, 0.599–0.863) scores did. However, in sepsis-associated AKI, the area under the curve increased to 0.799 (95% CI, 0.653–0.946), which was higher than that of the APACHE II (0.638; 95% CI, 0.450–0.826) and SOFA (0.697; 95% CI, 0.519–0.875) scores. In the multivariate Cox regression analysis, a high presepsin level was an independent risk factor for 28-day mortality in sepsis-associated AKI (hazard ratio, 3.437; p = 0.03). Conclusion: Presepsin is a potential prognostic marker in patients with sepsis-associated AKI requiring CKRT.
4.Bulk Modification with Inorganic Particles and Immobilization of Extracellular Vesicles onto PDO Composite for Facial Rejuvenation
Seung-Woon BAEK ; Dong Min KIM ; Semi LEE ; Duck Hyun SONG ; Gi-Min PARK ; Chun Gwon PARK ; Dong Keun HAN
Tissue Engineering and Regenerative Medicine 2024;21(2):199-208
BACKGROUND:
The skin, a vital organ protecting against microorganisms and dehydration, undergoes structural decline with aging, leading to visible issues such as wrinkles and sagging. Reduced blood vessels exacerbate vulnerability, hindering optimal cellular function and compromising skin health. Polydioxanone (PDO) biomaterials address aging concerns but produce acidic byproducts, causing inflammation. Inorganic particles and nitric oxide (NO) play crucial roles in inhibiting inflammation and promoting skin regeneration. Stem cell-derived extracellular vesicles (EVs) contribute to intercellular communication, offering the potential to enhance cell functions. The study proposes a method to enhance PDO-based medical devices by incorporating inorganic particles and immobilizing EVs, focusing on facial rejuvenation, anti-inflammatory response, collagen formation, and angiogenesis.METHOD: PDO composites with inorganic particles such as magnesium hydroxide (MH) and zinc oxide (ZO) were prepared and followed by EV immobilization. Comprehensive characterization included biocompatibility, anti-inflammation, collagen formation ability, and angiogenesis ability.
RESULTS:
Bulk-modified PDO composites demonstrated even dispersion of inorganic particles, pH neutralization, and enhanced biocompatibility. EVs immobilized on the composite surface exhibited spherical morphology. Inflammationrelated gene expressions decreased, emphasizing anti-inflammatory effects. Collagen-related gene and protein expressions increased, showcasing collagen formation ability. In addition, angiogenic capabilities were notably improved, indicating potential for skin rejuvenation.
CONCLUSION
The study successfully developed and characterized PDO composites with inorganic particles and EVs, demonstrating promising attributes for medical applications. These composites exhibit biocompatibility, anti-inflammatory properties, collagen formation ability, and angiogenic potential, suggesting their utility in skin rejuvenation and tissue engineering. Further research and clinical validation are essential.
5.Fournier Gangrene in a Patient With Type 2 Diabetes Mellitus Treated With Dapagliflozin: A Case Report
Jae Young MOON ; Min Ro LEE ; Jong Hun KIM ; Gi Won HA
Annals of Coloproctology 2021;37(Suppl 1):S48-S50
Rare cases of Fournier gangrene (FG) possibly associated with sodium-glucose cotransporter 2 inhibitors have been reported. We present a case of a 66-year-old male patient with type 2 diabetes mellitus on oral metformin, glimepiride, and dapagliflozin therapy. He presented with pain in the perineum and scrotum for 5 days. The clinical finding, computed tomography finding, and laboratory data were matched with FG. Emergency surgical drainage, debridement of necrotic tissue, and diverting loop ileostomy formation were performed by a urologist and a surgeon. The patient had no complications from diabetes before the onset of FG, and serum glucose management was good at the onset of FG. This case shows an FG patient with good glucose management taking dapagliflozin and suggests a possible association between dapagliflozin and FG. Further evaluation and additional research on this relationship are needed.
6.Fournier Gangrene in a Patient With Type 2 Diabetes Mellitus Treated With Dapagliflozin: A Case Report
Jae Young MOON ; Min Ro LEE ; Jong Hun KIM ; Gi Won HA
Annals of Coloproctology 2021;37(Suppl 1):S48-S50
Rare cases of Fournier gangrene (FG) possibly associated with sodium-glucose cotransporter 2 inhibitors have been reported. We present a case of a 66-year-old male patient with type 2 diabetes mellitus on oral metformin, glimepiride, and dapagliflozin therapy. He presented with pain in the perineum and scrotum for 5 days. The clinical finding, computed tomography finding, and laboratory data were matched with FG. Emergency surgical drainage, debridement of necrotic tissue, and diverting loop ileostomy formation were performed by a urologist and a surgeon. The patient had no complications from diabetes before the onset of FG, and serum glucose management was good at the onset of FG. This case shows an FG patient with good glucose management taking dapagliflozin and suggests a possible association between dapagliflozin and FG. Further evaluation and additional research on this relationship are needed.
7.Assessment of early nutritional state in critical patients with intoxication and the effect of nutritional status on prognosis
Dong-wan KO ; Sangcheon CHOI ; Young-gi MIN ; Hyuk jin LEE ; Eun Jung PARK
Journal of The Korean Society of Clinical Toxicology 2021;19(2):93-99
Purpose:
Nutritional status and support in critically ill patients are important factors in determining patient recovery and prognosis.The aim of this study was to analyze the early nutritional status and the methods of nutritional support in critically ill patients with acute poisoning and to evaluate the effect of nutritional status on prognosis.
Methods:
A retrospective study was conducted in tertiary care teaching hospital from January 2018 to December 2020. in an emergency department of university hospital, 220 patients who were stayed more than 2 days of poisoning in intensive care unit were enrolled.
Results:
155 (70.5%) of patients with acute poisoning had low-risk in nutritional risk screening (NRS). Patients with malignancy had higher NRS (low risk 5.2%, moderate risk 18.5%, high risk 13.2%, p=0.024). Patients of 91.4% supplied nutrition via oral route or enteral route. Parenteral route for starting method of nutritional support were higher in patients with acute poisoning of herbicide or pesticide (medicine 3.2%, herbicide 13.8%, pesticide 22.2%, p=0.000). In multivariate logistic regression analysis, herbicide or pesticide intoxication, higher risk in NRS and sequential organ failure assessment over 4.5 were affecting factor on poor recovery at discharge.
Conclusion
NRS in patients intoxicated with herbicide or pesticide were higher than that in patients intoxicated with medicine intoxication. Enteral nutrition in patients intoxicated with herbicide or pesticide was less common. Initial NRS was correlated with recovery at discharge in patient with intoxication. It is expected to be helpful in finding patients with high-risk nutritional status in acute poisoning patients and establishing a treatment plan that can actively implement nutritional support.
8.Comparison of functional outcomes between single-radius and multi-radius femoral components in primary total knee arthroplasty: a meta-analysis of randomized controlled trials
Jahyung KIM ; Kyung-Dae MIN ; Byung-Ill LEE ; Jun-Bum KIM ; Sai-Won KWON ; Dong-Il CHUN ; Yong-Beom KIM ; Gi-Won SEO ; Jeong Seok LEE ; Suyeon PARK ; Hyung-Suk CHOI
The Journal of Korean Knee Society 2020;32(4):e52-
Purpose:
Our purpose in the current meta-analysis was to compare the functional outcomes in patients who have received single-radius (SR) or multi-radius (MR) femoral components in randomized controlled trials (RCTs) for primary total knee arthroplasty (TKA). The hypothesis was that there would be no statistically significant difference between two groups in terms of functional outcomes.
Materials and methods:
We searched the international electronic databases PubMed, Embase, and the Cochrane Central Register of Controlled Trials up to February 2020 for RCTs that compared functional outcomes of SR and MR femoral component designs after primary TKA. We performed a meta-analysis of nine RCTs using the Knee Society Score for the knee (KSS-knee), KSS-function, Knee Injury and Osteoarthritis Outcome Score (KOOS), Oxford Knee Score (OKS), degree of knee flexion, extension, and complications, including postoperative infection and revision surgery.
Results:
The meta-analysis revealed no statistically significant differences in all the analyzed variables, including KSSknee, KSS-function, KOOS, OKS, knee flexion, and knee extension. For postoperative complications, no statistically significant differences were detected for femoral component designs in postoperative infection or incidence of revision surgery between the two groups.
Conclusions
The current meta-analysis of RCTs did not show any statistically significant differences between SR and MR femoral component designs in terms of postoperative functional outcomes. Evaluated outcomes included functional outcome scores, degree of knee flexion, extension, and complications. However, because of the limited clinical evidence of this study owing to the heterogeneity between the included RCTs, a careful approach should be made in order not to arrive at definite conclusions.
9.Outcome Differences of RemnantPreserving versus Non-Preserving Methods in Arthroscopic Anterior Cruciate Ligament Reconstruction: A Meta-analysis with Subgroup analysis
Sung Hun WON ; Byung-Il LEE ; Su Yeon PARK ; Kyung-Dae MIN ; Jun-Bum KIM ; Sai-Won KWON ; Yong-Beom KIM ; Gi-Won SEO ; Jae-Hyung KIM ; Hyung-Suk CHOI
The Journal of Korean Knee Society 2020;32(1):e7-
Purpose:
To analyze differences in clinical outcomes of arthroscopic anterior cruciate ligament reconstruction between remnant-preserving and non-preserving methods.
Methods:
International electronical databases PubMed, Embase, and the Cochrane central database from January 1966 to December 2017 were searched for randomized controlled trials (RCTs) and observational studies that compared differences of clinical outcomes of ACL reconstruction with and without remnant preservation. A metaanalysis of these studies was performed to compare clinical outcomes. Subgroup analyses were conducted to evaluate the role of methodological quality in primary meta-analysis estimates.
Results:
Five RCTsand six observational studies were included in this meta-analysis and subgroup analysis. The remnant-preserving method in arthroscopic ACL reconstruction showed a statistically significant difference compared to the non-preserving method regarding arthrometric evaluation (side-to-side difference). Lachman test, Lysholm scores, and IKDC subjective scores showed statistically minor difference in meta-analysis, but showed no significant difference in subgroup analysis. Remained parameters including pivot shift test, IKDC grades, incidence of cyclops lesion showed no statistically differences in meta-analysis or subgroup analysis.
Conclusions:
This meta-analysis with subgroup analysis showed that arthroscopic remnant-preserving ACL reconstruction provided statistically significant but limited clinical relevance in terms of arthrometric evaluation.
Results
of Lachman test, Lysholm scores, and IKDC subjective scores demonstrated statistically minor differences.
10.The effect of interleukin-8 in the early stage after anterior cruciate ligament reconstruction with remnant preservation
Kyung-Ok KIM ; Jae Ang SIM ; Ji Uk CHOI ; Beom Koo LEE ; Hong Gi PARK
The Journal of Korean Knee Society 2020;32(1):e5-
Purpose:
We studied the effect of interleukin-8 (IL-8) as the factor for angiogenesis in the joint fluid of remnantpreserved anterior cruciate ligament reconstruction (RP-ACLR).
Materials and methods:
We measured 12 cytokines in joint fluid by multiplex assay and assessed the relationship between IL-8 and vascular endothelial growth factor (VEGF) concentrations. The signal intensity and mean sagittal diameter via postoperative magnetic resonance imaging (MRI) scans were evaluated and the stress X-ray image was analyzed at 3, 6, and 12 months after operation.
Results:
The IL-8 concentration was highest 3 months postoperatively in those patients who underwent RP-ACLR.Clinical data also showed that the signal intensity and stress radiography of the knee graft were significantly better at the early postoperative stage.Discussion: Our results show that IL-8 plays an important role in angiogenesis within 3 months after RP-ACLR. This effect yields better recovery after operation. RP-ACLR patients with high knee stability in clinical data were identical to those with high expression of IL-8 in experimental data. Therefore, IL-8 has been shown to help revascularization and ligamentization of the grafted tendon. These results indicate that IL-8 in RP-ACLR is an important factor for angiogenesis after operation. Unfortunately, the relationship of IL-8 and VEGF in vivo has not been studied.
Conclusion
Our results showed that the IL-8 concentration was very high within 3 months after RP-ACLR operation. The increase in concentration of IL-8 over time was consistent with the increase in VEGF concentration.In the IL-8 clinical setting, MRI analysis showed that ACL synovialization and tension were better in patients who underwent the remnant preservation method. In addition, it was shown that RP-ACLR may be advantageous for early anterior stability within 1 year post operation and beneficial for tendon graft in the early stage post operation.Taken together, our findings suggest that IL-8 may contribute to angiogenesis which is helpful for revascularization and ligamentization of the graft tendon in the early stages of RP-ACLR.

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