1.Risk factors for recurrence in stage I colorectal cancer after curative resection: a systematic review and meta-analysis
Sung Hwan HWANG ; Seon-Hi SHIN ; Yun Jin KIM ; Jun Ho LEE
Annals of Surgical Treatment and Research 2025;108(1):39-48
Purpose:
Patients with stage I colorectal cancer (CRC) rarely experience recurrence after curative resection. Therefore, the risk factors for stage I CRC recurrence are yet to be established. We aimed to identify risk factors for stage I CRC recurrence.
Methods:
MEDLINE, Embase, and Cochrane Library were searched for articles published between 1990 and 2022. The pooled proportions and hazard ratios (HRs) were calculated. Fixed- or random-effect models were considered based on heterogeneity, using Cochran’s Q-statistic and the I2 -test.
Results:
Nine studies involving 19,440 patients were included. Nine analyzed risk factors were identified. T2 stage (pooled HR, 2.070; 95% confidence interval [CI], 1.758–2.438; P < 0.001; I2 =0.0%), lymphovascular invasion (HR, 1.685; 95% CI, 1.420–1.999; P < 0.001; I2 = 0.0%), venous invasion (HR, 1.794; 95% CI, 1.515–2.125; P < 0.001; I2 = 0.0%), CEA level (HR, 1.472; 95% CI, 1.093–1.983; P = 0.011; I2 = 1.8%) and rectal cancer (HR, 2.981; 95% CI, 2.378–3.735; P < 0.001; I2 = 0.0%) were risk factors for the recurrence. However, the risk of recurrence in right-sided colon cancer was lower than in leftsided colon cancer. (HR, 0.712; 95% CI, 0.537–0.944; P = 0.018; I2 = 0.0%). No statistically significant differences were observed in the number of harvested lymph nodes, age, and sex.
Conclusion
T2 stage, lymphovascular invasion, venous invasion, CEA level, rectal cancer, and left-sided colon cancer were risk factors for recurrence in stage I CRC. Intensive monitoring and surveillance are warranted for patients with high-risk features of recurrence.
2.Risk factors for recurrence in stage I colorectal cancer after curative resection: a systematic review and meta-analysis
Sung Hwan HWANG ; Seon-Hi SHIN ; Yun Jin KIM ; Jun Ho LEE
Annals of Surgical Treatment and Research 2025;108(1):39-48
Purpose:
Patients with stage I colorectal cancer (CRC) rarely experience recurrence after curative resection. Therefore, the risk factors for stage I CRC recurrence are yet to be established. We aimed to identify risk factors for stage I CRC recurrence.
Methods:
MEDLINE, Embase, and Cochrane Library were searched for articles published between 1990 and 2022. The pooled proportions and hazard ratios (HRs) were calculated. Fixed- or random-effect models were considered based on heterogeneity, using Cochran’s Q-statistic and the I2 -test.
Results:
Nine studies involving 19,440 patients were included. Nine analyzed risk factors were identified. T2 stage (pooled HR, 2.070; 95% confidence interval [CI], 1.758–2.438; P < 0.001; I2 =0.0%), lymphovascular invasion (HR, 1.685; 95% CI, 1.420–1.999; P < 0.001; I2 = 0.0%), venous invasion (HR, 1.794; 95% CI, 1.515–2.125; P < 0.001; I2 = 0.0%), CEA level (HR, 1.472; 95% CI, 1.093–1.983; P = 0.011; I2 = 1.8%) and rectal cancer (HR, 2.981; 95% CI, 2.378–3.735; P < 0.001; I2 = 0.0%) were risk factors for the recurrence. However, the risk of recurrence in right-sided colon cancer was lower than in leftsided colon cancer. (HR, 0.712; 95% CI, 0.537–0.944; P = 0.018; I2 = 0.0%). No statistically significant differences were observed in the number of harvested lymph nodes, age, and sex.
Conclusion
T2 stage, lymphovascular invasion, venous invasion, CEA level, rectal cancer, and left-sided colon cancer were risk factors for recurrence in stage I CRC. Intensive monitoring and surveillance are warranted for patients with high-risk features of recurrence.
3.Risk factors for recurrence in stage I colorectal cancer after curative resection: a systematic review and meta-analysis
Sung Hwan HWANG ; Seon-Hi SHIN ; Yun Jin KIM ; Jun Ho LEE
Annals of Surgical Treatment and Research 2025;108(1):39-48
Purpose:
Patients with stage I colorectal cancer (CRC) rarely experience recurrence after curative resection. Therefore, the risk factors for stage I CRC recurrence are yet to be established. We aimed to identify risk factors for stage I CRC recurrence.
Methods:
MEDLINE, Embase, and Cochrane Library were searched for articles published between 1990 and 2022. The pooled proportions and hazard ratios (HRs) were calculated. Fixed- or random-effect models were considered based on heterogeneity, using Cochran’s Q-statistic and the I2 -test.
Results:
Nine studies involving 19,440 patients were included. Nine analyzed risk factors were identified. T2 stage (pooled HR, 2.070; 95% confidence interval [CI], 1.758–2.438; P < 0.001; I2 =0.0%), lymphovascular invasion (HR, 1.685; 95% CI, 1.420–1.999; P < 0.001; I2 = 0.0%), venous invasion (HR, 1.794; 95% CI, 1.515–2.125; P < 0.001; I2 = 0.0%), CEA level (HR, 1.472; 95% CI, 1.093–1.983; P = 0.011; I2 = 1.8%) and rectal cancer (HR, 2.981; 95% CI, 2.378–3.735; P < 0.001; I2 = 0.0%) were risk factors for the recurrence. However, the risk of recurrence in right-sided colon cancer was lower than in leftsided colon cancer. (HR, 0.712; 95% CI, 0.537–0.944; P = 0.018; I2 = 0.0%). No statistically significant differences were observed in the number of harvested lymph nodes, age, and sex.
Conclusion
T2 stage, lymphovascular invasion, venous invasion, CEA level, rectal cancer, and left-sided colon cancer were risk factors for recurrence in stage I CRC. Intensive monitoring and surveillance are warranted for patients with high-risk features of recurrence.
4.Changes in eyebrow position following blepharoptosis surgery
Ji-Hwan CHA ; Xin JIN ; Hi-Jin YOU ; Tae-Yul LEE ; Deok-Woo KIM
Archives of Aesthetic Plastic Surgery 2023;29(4):177-182
Background:
The position of the eyebrows is critical when planning blepharoptosis surgery. However, insufficient scholarly attention has been paid to the details of postoperative eyebrow height changes at each anatomical landmark. This study investigated the effect of blepharoptosis surgery on brow height and evaluated the change in brow position.
Methods:
After a retrospective review of 247 patients, this study analyzed 53 patients (106 eyelids) who underwent levator and Müller’s complex advancement between March 2010 and January 2022. Brow heights were measured from the distance between the upper brow margin of each landmark and horizontal line of pupillary center on a digital photograph.
Results:
The mean change of eyebrow lowering was 1.54 mm (P<0.001) at the medial canthus, 1.29 mm (P<0.001) at the medial limbus, 1.44 mm (P<0.001) at the center of the pupil, 1.40 mm (P<0.001) at the lateral limbus, 1.15 mm (P=0.001) at the lateral canthus, and 0.75 mm (P=0.021) at the lateral eyebrow end. The brow change was most prominent at medial canthus and least prominent at the lateral brow end. The preoperative brow position was only statistically significant factor predicting brow height descent after surgery according to multiple linear regression analysis (R2=0.305, B=–0.375, P<0.001).
Conclusions
The eyebrows lowered in most patients after blepharoptosis surgery. The preoperative brow position is the most important factor in predicting the change in brow height after blepharoptosis surgery.
5.Body mass index and prevalence of metabolic syndrome among Korean adults before and after the COVID-19 outbreak: a retrospective longitudinal study
Joo-Eun JEONG ; Hoon-Ki PARK ; Hwan-Sik HWANG ; Kye-Yeung PARK ; Myoung-Hye LEE ; Seon-Hi SHIN ; Nayeon CHOI
Epidemiology and Health 2023;45(1):e2023081-
OBJECTIVES:
Studies evaluating weight changes during the coronavirus disease 2019 (COVID-19) pandemic have yielded inconsistent results, and most of those studies were based on self-reported anthropometric measures. We investigated changes in body mass index (BMI), professionally measured waist circumference (WC), and metabolic syndrome components from before to during the pandemic in a sample of the adult population in Korea.
METHODS:
This retrospective study included 1,118 male and female (age≥18 years) who underwent health checkups at a university medical center between January 1, 2016 and March 31, 2022. Changes in BMI, lifestyles, and metabolic syndrome components during the pandemic were analyzed using the paired t-test, McNemar test, generalized estimating equations, and repeated-measures analysis of variance.
RESULTS:
Changes in body weight, BMI, and body fat percentage during the pandemic were not clinically significant. However, statistically significant results were found for decreased physical activity (p<0.001) and WC (p<0.001), and exacerbation of all metabolic syndrome components (except serum triglyceride levels). Moreover, the metabolic syndrome prevalence increased significantly from 20.2% to 31.2% during the pandemic (p<0.001). The prevalence of abdominal obesity and high fasting blood glucose levels also significantly increased from 2019 to 2021.
CONCLUSIONS
Metabolic syndrome, its components, and fat distribution worsened significantly after the implementation of social distancing and lockdowns, despite no clinically significant changes in body weight and BMI. Further studies on the post- pandemic period should investigate the long-term impact of social lockdowns on BMI and the prevalence of metabolic syndrome.
6.Dual vascular free transverse rectus abdominis myocutaneous flap for hemifacial reconstruction in a vessel-depleted neck
Su-Hyun LEE ; Hi-Jin YOU ; Yun-Hwan LEE ; Deok-Woo KIM
Archives of Plastic Surgery 2020;47(1):88-91
Cutaneous squamous cell carcinoma (SCC) is the second most common skin malignancy. This report describes the case of an unusual extensive SCC involving the whole hemiface, which required reconstruction with a combination of a dual vascular free transverse rectus abdominis muscle (TRAM) flap and a skin graft. A 79-year-old woman visited our hospital with multiple large ulcerated erythematous patches on her right hemiface, including the parieto-temporal scalp, bulbar and palpebral conjunctiva, cheek, and lip. A preliminary multifocal biopsy was performed in order to determine the resection margin, and the lesion was resected en bloc. Orbital exenteration was also performed. A free TRAM flap was harvested with preserved bilateral pedicles and was anastomosed with a single superior thyroidal vessel. The entire TRAM flap survived. The final pathological examination of the resected specimen confirmed that there was no regional nodal metastasis, perineural invasion, or lymphovascular involvement. The patient was observed for 6 months, and there was no evidence of local recurrence. Usage of a TRAM flap is appropriate for hemifacial reconstruction because the skin of the abdomen matches the color and pliability of the face. Furthermore, we found that the independent attachment of two extra-flap anastomoses to a single recipient vessel can safely result in survival of the flap.
7.Evaluation of Polycaprolactone-Associated Human Nasal Chondrocytes as a Therapeutic Agent for Cartilage Repair
Do Hyun KIM ; Mi Hyun LIM ; Jung Ho JEUN ; Sun Hwa PARK ; WeonSun LEE ; Sang Hi PARK ; Mi Yeon KWON ; Se Hwan HWANG ; Sung Won KIM
Tissue Engineering and Regenerative Medicine 2019;16(6):605-614
BACKGROUND: In this study, we manufactured a complex of human nasal septal cartilage (hNC) with polycaprolactone (PCL) for transplantation into cartilaginous skeletal defects and evaluated their characteristics.METHODS: Nasal septum tissue was obtained from five patients aged ≥ 20 years who were undergoing septoplasty. hNCs were isolated and subcultured for three passages in vitro. To formulate the cell–PCL complex, we used type I collagen as an adhesive between chondrocyte and PCL. Immunofluorescence staining, cell viability and growth in the hNC–PCL complex, and mycoplasma contamination were assessed.RESULTS: hNCs in PCL showed viability ≥ 70% and remained at these levels for 9 h of incubation at 4 ℃. Immunostaining of the hNC–PCL complex also showed high expression levels of chondrocyte-specific protein, COL2A1, SOX9, and aggrecan during 24 h of clinically applicable conditions.CONCLUSION: The hNC–PCL complex may be a valuable therapeutic agent for implantation into injured cartilage tissue, and can be used clinically to repair cartilaginous skeletal defects. From a clinical perspective, it is important to set the short duration of the implantation process to achieve effective functional implantation.
Adhesives
;
Aggrecans
;
Cartilage
;
Cell Survival
;
Chondrocytes
;
Collagen
;
Collagen Type I
;
Fluorescent Antibody Technique
;
Humans
;
In Vitro Techniques
;
Mycoplasma
;
Nasal Septum
;
Tissue Engineering
8.Changes in small intestinal motility and related hormones by acupuncture stimulation at Zusanli (ST 36) in mice.
Jung-Hee JANG ; Deuk-Joo LEE ; Chang-Hwan BAE ; Ki-Tae HA ; Sunoh KWON ; Hi-Joon PARK ; Dae-Hyun HAHM ; Hyejung LEE ; Seungtae KIM
Chinese journal of integrative medicine 2017;23(3):215-220
OBJECTIVESTo clarify the effects of acupuncture stimulation at Zusanli (ST 36) on the hormonal changes.
METHODSEight-week-old male C57BL/6 mice received acupuncture stimulation at acupoint ST 36 or Quchi (LI 11) once a day for 3 or 5 days in the acupuncture-stimulated groups, but not received in the normal group (n=6 in each group). On day 3 or 5, animals were given 0.1 mL of charcoal orally with a bulbed steel needle, 30 min after the last acupuncture stimulation. Ten minutes later, mice were anesthetized, and the intestinal transit and the concentrations of vasoactive intestinal peptide (VIP), motilin, ghrelin and gastrin in the serum were measured.
RESULTSCompared to no acupuncture stimulation, acupuncture stimulation at ST 36 for 5 days increased the intestinal transit and down-regulated the concentration of VIP and up-regulated the concentrations of motilin, ghrelin and gastrin (P<0.05 or 0.01), whereas acupuncture stimulation at LI 11 did not change them signifificantly (P>0.05).
CONCLUSIONAcupuncture stimulation at ST 36 for 5 days enhances the small intestinal motility and regulates the secretion of hormones related to small intestinal motility.
Acupuncture Points ; Acupuncture Therapy ; Animals ; Gastrointestinal Motility ; physiology ; Hormones ; blood ; Intestine, Small ; physiology ; Male ; Mice, Inbred C57BL
9.Thyroid Autoantibody Positive Anti-N-Methyl-D-Aspartate Receptor Encephalitis.
Yoori JUNG ; Soonwon PARK ; Hwan Jun SON ; Dae Soo JUNG ; Eun Hi SA ; Sun Tae LEE ; Eun Soo KIM ; Na Yeon JUNG ; Eun Joo KIM
Dementia and Neurocognitive Disorders 2016;15(1):24-27
BACKGROUND: Hashimoto's encephalopathy (HE) and anti N-methyl-D-aspartate receptor (NMDAR) encephalitis have clinical overlaps. CASE REPORT: A 70-year-old woman presented with acutely developed confusion, disorientations and psychosis. HE was suspected based on goiter, markedly elevated anti-thyroglobulin and anti-thyroid peroxidase antibody. She was placed on high dose steroid and intravenous immunoglobulins administration, which did not ameliorate her symptoms. After the antibodies to the NMDAR were identified, weekly 500 mg of rituximab with 4 cycles were started. The current followed up indicated a complete recovery. CONCLUSIONS: The possible associations between NMDAR antibody and autoimmune thyroid antibodies in anti-NMDAR encephalitis with positive thyroid autoantibodies remain unclear. However, a trend toward a higher incidence of NMDAR antibody in patients with autoimmune thyroid antibodies than without has been observed. Cases of encephalitis with only NMDAR antibody (pure anti-NMDAR encephalitis) also occur. Therefore, it is important for clinicians to know the clinical and pathogenic differences between anti-NMDAR encephalitis with positive thyroid autoantibody and pure anti-NMDAR encephalitis for relevant treatment, predicting prognosis, and future follow-up.
Aged
;
Anti-N-Methyl-D-Aspartate Receptor Encephalitis*
;
Antibodies
;
Autoantibodies
;
Encephalitis
;
Female
;
Follow-Up Studies
;
Goiter
;
Humans
;
Immunoglobulins, Intravenous
;
Incidence
;
N-Methylaspartate
;
Peroxidase
;
Prognosis
;
Psychotic Disorders
;
Thyroid Gland*
;
Rituximab
10.Amyand Hernia: Sonographic and CT Appearances.
Hwan Yong KIM ; Chul Hi PARK ; Min Ji KIM ; Yeo Eun KIM ; Dong Hoon LEE ; Young Kyung LEE ; Ho Kyung HWANG
Journal of the Korean Society of Medical Ultrasound 2013;32(4):302-305
Herniation of the appendix into an inguinal canal is known as an Amyand hernia. Due to its nonspecific symptoms, clinical diagnosis is extremely difficult, and an accurate preoperative diagnosis of Amyand hernia with ultrasound (US) and CT is rarely reported. Herein, we reported a typical case of Amyand hernia in a 74-year-old male in which the correct diagnosis was made using inguinal US and contrast-enhanced abdominopelvic CT. US and CT findings of Amyand hernia showed a target-like tubular structure within the inguinal canal.
Aged
;
Appendix
;
Diagnosis
;
Hernia*
;
Humans
;
Inguinal Canal
;
Male
;
Ultrasonography*

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