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1.
Cancer Research and Treatment ; : 927-938, 2023.
Article in English | WPRIM | ID: wpr-999778

ABSTRACT

Purpose@#Circulating tumor DNA (ctDNA) is emerging as a valuable non-invasive tool to identify tumor heterogeneity and tumor burden. This study investigated ctDNA dynamics in metastatic colorectal cancer patients treated with regorafenib. @*Materials and Methods@#In this prospective biomarker study, plasma cell-free DNA (cfDNA) samples obtained at baseline, at the first response evaluation after 2 cycles of treatment, and at the time of progressive disease were sequenced using a targeted next-generation sequencing platform which included 106 genes. @*Results@#A total of 285 blood samples from 110 patients were analyzed. Higher baseline cfDNA concentration was associated with worse progression-free survival (PFS) and overall survival (OS). After 2 cycles of treatment, variant allele frequency (VAF) in the majority of ctDNA mutations decreased with a mean relative change of –31.6%. Decreases in the VAF of TP53, APC, TCF7L2, and ROS1 after 2 cycles of regorafenib were associated with longer PFS. We used the sum of VAF at each time point as a surrogate for the overall ctDNA burden. A reduction in sum (VAF) of ≥ 50% after 2 cycles was associated with longer PFS (6.1 vs. 2.7 months, p=0.002), OS (11.3 vs. 5.9 months, p=0.001), and higher disease control rate (86.3% vs. 51.1%, p < 0.001). VAF of the majority of the ctDNA mutations increased at the time of disease progression, and VAF of BRAF increased markedly. @*Conclusion@#Reduction in ctDNA burden as estimated by sum (VAF) could be used to predict treatment outcome of regorafenib.

2.
The Korean Journal of Gastroenterology ; : 163-167, 2023.
Article in English | WPRIM | ID: wpr-1002921

ABSTRACT

Since the coronavirus disease 2019 (COVID-19) outbreak caused by the severe acute respiratory syndrome-coronavirus-2 virus (SARS-CoV-2), various complications have been reported. Although most COVID-19 cases exhibited flu-like symptoms, COVID-19 may dysregulate the immune response and promote overwhelming levels of inflammation in some patients. Inflammatory bowel disease (IBD) is caused by dysregulated or inappropriate immune responses to environmental factors in a genetically susceptible host, and a SARS-CoV-2 infection may act as a possible cause of IBD. This paper describes two pediatric patients who developed Crohn’s disease following a SARS-CoV-2 infection. They were previously healthy before the SARS-CoV-2 infection. On the other hand, they started to develop fever and gastrointestinal symptoms several weeks after recovery from the infection. They were diagnosed with Crohn’s disease by imaging and endoscopic studies, and their symptoms improved after treatment with steroids and azathioprine. This paper suggests that a SARS-CoV-2 infection may trigger IBD in predisposed patients.

3.
The Korean Journal of Internal Medicine ; : 398-410, 2022.
Article in English | WPRIM | ID: wpr-927001

ABSTRACT

Background/Aims@#Germline mutations of the rearranged during transfection (RET) gene cause multiple endocrine neoplasia type 2 (MEN2). About 85% of RET mutations in MEN2 occur in codon Cys634. The RET D631Y mutation has recently been discovered, and we have studied its molecular expression and clinical consequences. @*Methods@#We analyzed the clinical characteristics of a total of 34 D631Y variant MEN2 individuals from seven families. We also constructed wild-type and mutant C630Y, D631Y, and C634R/W expression vectors and investigated their effects on signaling pathways and ability to correct the phenotypes of RET mutant cells. @*Results@#The median ages at diagnosis of pheochromocytoma and medullary thyroid carcinoma (MTC) were higher in patients with RET D631Y variant MEN2 than in those with the C634R/W variant (49:53.5 years vs. 33.5:27 years, respectively), and the penetration of the D631Y mutation with respect to MTC was lower than that of the C634R/W mutation (32.3% vs. 90%). The effects of the mutant vectors on phosphorylation of RET signaling molecules and focus formation were significantly different from those of wild type, but there were no significant differences between the mutants. D631Y scored significantly higher for chemotaxis and wound healing than C630Y, but lower than C634R and C634W. @*Conclusions@#We suggest that the tumorigenic potential conferred by the D631Y mutation is lower than that conferred by the C634R/W mutation, but higher than that conferred by C630Y. Thus, the risk level of the RET D631Y variant appears to be higher than that of C630Y and lower than that of C634R/W.

4.
Allergy, Asthma & Respiratory Disease ; : 104-108, 2021.
Article in English | WPRIM | ID: wpr-913298

ABSTRACT

Cytomegalovirus (CMV) is the most common agent of congenital infections and opportunistic infections in an immunocompromised host. CMV in an immunocompetent host has inapparent infections, which are usually asymptomatic or cause mild mononucleosis-like symptoms. However, severe CMV diseases, such as pneumonia, hepatitis, gastrointestinal disease, often occur in a healthy infant. The association of CMV pneumonia with the development of pneumothorax has rarely been reported. We experienced a case of CMV pneumonia presenting as pneumothorax in a 4-month-old healthy infant, who was successfully treated with supportive care. CMV was confirmed by using CMV polymerase chain reaction of tracheal aspirates. This case suggested that CMV should be considered as a cause of viral pneumonia during the infant period.

5.
Anesthesia and Pain Medicine ; : 108-115, 2021.
Article in English | WPRIM | ID: wpr-874062

ABSTRACT

Background@#Perioperative patients are potentially at risk for pressure injuries due to anesthetic agents and surgical positioning. Pressure injury increases discomfort and pain in patients and causes complications, which lead to an increase in mortality and hospitalization duration. Most previous studies did not focus on specific types of surgery or surgical positioning. We tried to identify the incidence of perioperative pressure injury during spinal surgery and perioperative risk factors that contribute to pressure injury. @*Methods@#We retrospectively analyzed electronic medical records of 663 patients who underwent spinal surgery between March 2016 and May 2018. The primary outcome was occurrence of pressure injury. Potential risk factors of pressure injury were selected based on previous studies and expert opinion, and divided into two sub-categories: preoperative and intraoperative risk factors. We compared the clinical characteristics of patients in the pressure injury and non-injury groups. Perioperative risk factors for pressure injury were analyzed by logistic regression. @*Results@#Among 663 patients, the incidence of all stages of pressure injury was 5.9%. The face and inguinal regions were the most injured sites (both 28.6%). The pressure injury group showed a 13% longer hospitalization period. Preoperative plasma concentration of protein was associated with 0.5-fold lower pressure injury (OR: 0.50; 95% CI: 0.27 to 0.95; P = 0.034). @*Conclusions@#The incidence of pressure injury was similar to that previously reported and occurred in the direct weight-bearing areas, which led to longer hospitalization. We found that a lower preoperative serum protein level is significantly associated with intraoperative pressure injury occurrence during spinal surgery.

6.
Asian Oncology Nursing ; : 98-109, 2021.
Article in English | WPRIM | ID: wpr-897209

ABSTRACT

Purpose@#This study investigated the difficulties in end-of-life care and end-of-life care competency in nurses who take care of cancer patients. @*Methods@#In the mixed method, a structured questionnaire on end-of-life care stress and competency was conducted on 115 nurses caring for cancer patients, and 19 were interviewed for qualitative research. For the collected quantitative data, descriptive statistics were used. For the qualitative study, the contents of the interview were summarized and systematized using the content analysis method to derive the main themes. @*Results@#The mean end-of-life care stress was 4.08 points (out of 5) and the mean end-of-life care competency was 3.43 points (out of 5). Four themes and 11 sub-themes for the difficulties in end-of-life care were identified, and the four themes are as follows: (1) regret over limited end-of-life nursing, (2) different aspects of persistent emotional distress, (3) overloaded duty at the end-of-life (4) conflicts encountered in decision-making for life-sustaining treatment. Four themes and eight sub-themes for end-of-life care competency were identified, and the four themes are as follows: (1) empathy and listening skills, (2) communication skills, (3) clinical nursing experience and education, (4) clinical nursing competency. @*Conclusion@#It was confirmed that nurses caring for cancer patients had a high level of end-of-life care stress, and it is necessary to develop a program to reduce difficulties in end-of-life care and increase end-of-life care competency.

7.
Anesthesia and Pain Medicine ; : 201-204, 2021.
Article in English | WPRIM | ID: wpr-896707

ABSTRACT

Background@#Peripheral nerve injury is a complication that can occur after general anesthesia. It significantly impairs the patient’s quality of life and may lead to permanent disability. Nerves in several areas can be damaged during the perioperative period, but it is very rare that numbness of the lower lip is caused after general anesthesia. Case: A 73-year-old man with diabetes mellitus underwent urological surgery under general anesthesia. The day after surgery, he complained of numbness on the right lower lip caused by a mental nerve injury. Diabetic mononeuropathy or neurapraxia related to mechanical compression was considered a possible cause. The symptoms resolved spontaneously after six weeks. @*Conclusions@#Mental nerve injury is a rare perioperative complication in surgical patients under general anesthesia. In this case, patients should be reassured and advised to avoid injuries to the mouth and lips. However, specific treatment is not required.

8.
Soonchunhyang Medical Science ; : 20-22, 2021.
Article in English | WPRIM | ID: wpr-895729

ABSTRACT

The Mullerian duct cyst (MDC) occurs due to incomplete focal regression and saccular dilatation of the paramesonephric duct. It is usually found asymptomatic in adults, but it also shows symptoms such as ejaculatory impairment, hematospermia, pelvic pain, urinary retention, and urinary tract infections. MDCs are rare in children. Transrectal ultrasonography, computed tomography, and magnetic resonance imaging are useful for diagnosis. Treatment is based on age, clinical symptoms as well as size and location of the cyst. Here, we report a case of a 19-month-old boy with an infectious MDC that presented with fever. He has improved with antibiotic treatment, not surgical resection.

9.
Korean Journal of Anesthesiology ; : 409-421, 2021.
Article in English | WPRIM | ID: wpr-894045

ABSTRACT

Background@#Ibuprofen, a well-known analgesic, is commonly used as a component of a multimodal analgesic approach for postoperative pain. This systematic review and meta-analysis aimed to investigate whether a single-dose preoperative intravenous ibuprofen can reduce postoperative pain and opioid consumption. @*Methods@#PubMed/MEDLINE, Embase, Cochrane Library (CENTRAL), and Web of Science databases were searched to identify relevant studies published up to May 2020. Randomized controlled trials comparing preoperative single-dose intravenous ibuprofen effect with the control group on postoperative pain and opioid consumption after surgery under general anesthesia were included. @*Results@#Six studies involving 366 participants were included. Single-dose administration of intravenous ibuprofen preoperatively significantly reduced postoperative pain score on a scale of 0-10 at 1 h (MD: -1.64, 95% CI [-2.56, -0.72], P < 0.001, I2 = 95%), at 4-6 h (MD: -1.17, 95% CI [-2.09, -0.26], P < 0.001, I2 = 94%), and 24 h (MD: -0.58, 95% CI [-0.99, -0.18], P < 0.001, I2 = 90%). Cumulative opioid consumption, presented as fentanyl equivalents, was also reduced significantly in the ibuprofen group compared to placebo group until postoperative 4-6 h (MD: -56.35 μg, 95% CI [-101.10, -11.60], P < 0.001, I2 = 91%) and 24 h (MD: -131.39 μg, 95% CI [-224.56, -38.21], P < 0.001, I2 = 95%). @*Conclusions@#Preoperative single-dose intravenous ibuprofen can reduce postoperative pain and opioid consumption until 24 h postoperatively. Considering the high heterogeneity and small number of studies included, care should be taken when generalizing these findings.

10.
Soonchunhyang Medical Science ; : 20-22, 2021.
Article in English | WPRIM | ID: wpr-903433

ABSTRACT

The Mullerian duct cyst (MDC) occurs due to incomplete focal regression and saccular dilatation of the paramesonephric duct. It is usually found asymptomatic in adults, but it also shows symptoms such as ejaculatory impairment, hematospermia, pelvic pain, urinary retention, and urinary tract infections. MDCs are rare in children. Transrectal ultrasonography, computed tomography, and magnetic resonance imaging are useful for diagnosis. Treatment is based on age, clinical symptoms as well as size and location of the cyst. Here, we report a case of a 19-month-old boy with an infectious MDC that presented with fever. He has improved with antibiotic treatment, not surgical resection.

11.
Korean Journal of Anesthesiology ; : 409-421, 2021.
Article in English | WPRIM | ID: wpr-901749

ABSTRACT

Background@#Ibuprofen, a well-known analgesic, is commonly used as a component of a multimodal analgesic approach for postoperative pain. This systematic review and meta-analysis aimed to investigate whether a single-dose preoperative intravenous ibuprofen can reduce postoperative pain and opioid consumption. @*Methods@#PubMed/MEDLINE, Embase, Cochrane Library (CENTRAL), and Web of Science databases were searched to identify relevant studies published up to May 2020. Randomized controlled trials comparing preoperative single-dose intravenous ibuprofen effect with the control group on postoperative pain and opioid consumption after surgery under general anesthesia were included. @*Results@#Six studies involving 366 participants were included. Single-dose administration of intravenous ibuprofen preoperatively significantly reduced postoperative pain score on a scale of 0-10 at 1 h (MD: -1.64, 95% CI [-2.56, -0.72], P < 0.001, I2 = 95%), at 4-6 h (MD: -1.17, 95% CI [-2.09, -0.26], P < 0.001, I2 = 94%), and 24 h (MD: -0.58, 95% CI [-0.99, -0.18], P < 0.001, I2 = 90%). Cumulative opioid consumption, presented as fentanyl equivalents, was also reduced significantly in the ibuprofen group compared to placebo group until postoperative 4-6 h (MD: -56.35 μg, 95% CI [-101.10, -11.60], P < 0.001, I2 = 91%) and 24 h (MD: -131.39 μg, 95% CI [-224.56, -38.21], P < 0.001, I2 = 95%). @*Conclusions@#Preoperative single-dose intravenous ibuprofen can reduce postoperative pain and opioid consumption until 24 h postoperatively. Considering the high heterogeneity and small number of studies included, care should be taken when generalizing these findings.

12.
Asian Oncology Nursing ; : 98-109, 2021.
Article in English | WPRIM | ID: wpr-889505

ABSTRACT

Purpose@#This study investigated the difficulties in end-of-life care and end-of-life care competency in nurses who take care of cancer patients. @*Methods@#In the mixed method, a structured questionnaire on end-of-life care stress and competency was conducted on 115 nurses caring for cancer patients, and 19 were interviewed for qualitative research. For the collected quantitative data, descriptive statistics were used. For the qualitative study, the contents of the interview were summarized and systematized using the content analysis method to derive the main themes. @*Results@#The mean end-of-life care stress was 4.08 points (out of 5) and the mean end-of-life care competency was 3.43 points (out of 5). Four themes and 11 sub-themes for the difficulties in end-of-life care were identified, and the four themes are as follows: (1) regret over limited end-of-life nursing, (2) different aspects of persistent emotional distress, (3) overloaded duty at the end-of-life (4) conflicts encountered in decision-making for life-sustaining treatment. Four themes and eight sub-themes for end-of-life care competency were identified, and the four themes are as follows: (1) empathy and listening skills, (2) communication skills, (3) clinical nursing experience and education, (4) clinical nursing competency. @*Conclusion@#It was confirmed that nurses caring for cancer patients had a high level of end-of-life care stress, and it is necessary to develop a program to reduce difficulties in end-of-life care and increase end-of-life care competency.

13.
Anesthesia and Pain Medicine ; : 201-204, 2021.
Article in English | WPRIM | ID: wpr-889003

ABSTRACT

Background@#Peripheral nerve injury is a complication that can occur after general anesthesia. It significantly impairs the patient’s quality of life and may lead to permanent disability. Nerves in several areas can be damaged during the perioperative period, but it is very rare that numbness of the lower lip is caused after general anesthesia. Case: A 73-year-old man with diabetes mellitus underwent urological surgery under general anesthesia. The day after surgery, he complained of numbness on the right lower lip caused by a mental nerve injury. Diabetic mononeuropathy or neurapraxia related to mechanical compression was considered a possible cause. The symptoms resolved spontaneously after six weeks. @*Conclusions@#Mental nerve injury is a rare perioperative complication in surgical patients under general anesthesia. In this case, patients should be reassured and advised to avoid injuries to the mouth and lips. However, specific treatment is not required.

14.
Journal of Korean Neuropsychiatric Association ; : 260-267, 2020.
Article | WPRIM | ID: wpr-836015

ABSTRACT

Methods@#A total of 12 C57BL/6 male mice (Orient Bio), aged 6 weeks, were fed a high-fat diet for 13 weeks to construct a diet-induced obesity model. During the following 5 weeks, diet-induced obese mice were daily administered cannabis extract or sesame seed oil orally along with the high-fat diet. The body weight of each subject was measured weekly. Venous blood was drawn for biochemistry, enzyme-linked immunoassay, and oral glucose tolerance test before and after treatment. Body fat was measured by dual-energy X-ray absorptiometry, and the mesenteric adipose tissue was also measured after sacrifice. We used exact Wilcoxon’s two-sample analyses and generalized estimating equations to test the differences between the cannabis-treated group and control. @*Results@#There was significant weight loss (p=0.009) observed in the cannabis-treated mice compared to the control group after 5 weeks of treatment. High-fat diet-induced glucose intolerance in the cannabis-treated group was significantly ameliorated (p=0.032), whereas there were no profound differences between the two groups in terms of other physiological markers, including corticosterone level. @*Conclusion@#This study shows that orally administered cannabis extract had a pharmacological effect of weight loss in diet-induced obese mice. This weight loss might be attributed to an increase in energy expenditure and regulation of glucose homeostasis.

15.
Asian Oncology Nursing ; : 55-65, 2018.
Article in Korean | WPRIM | ID: wpr-715474

ABSTRACT

PURPOSE: The purpose of this study was to compare depression and quality of life (QOL) according to nutritional status of elderly cancer patients receiving chemotherapy. METHODS: A sample of 144 elderly cancer patients receiving chemotherapy was recruited for the cross-sectional survey design. The instruments were the Mini Nutritional Assessment-Short Form (MNA-SF), Geriatric Depression Scale Short Form-Korea (GDSSF-K), European Organization for Research and Treatment of Cancer (EORTC) QLQ-C30 and QLQ ELD14. Data were analyzed using the SPSS/WIN program. RESULTS: Nutrition had mean of 10.17 points out of 14 and depression had mean of 6.72 points (out of 15). In quality of life, global health status/QoL was 50.06 points, 66.68 for the functional scale, and 29.77 for the symptom scale based on 100 points. The quality of life of elderly cancer patients was 36.52~70.14. There was a significant difference between the well-nourished and malnourished group in depression and QoL. There were significant correlations among the variables, nutritional status, depression and quality of life. CONCLUSION: We found that patients with cancer of the elderly receiving chemotherapy had poor nutritional status, depression, and poor QoL. It is necessary to evaluate the nutritional status of elderly cancer patients receiving chemotherapy and to develop interventions.


Subject(s)
Aged , Humans , Cross-Sectional Studies , Depression , Drug Therapy , Global Health , Nutritional Status , Quality of Life
16.
Journal of Dental Hygiene Science ; (6): 164-171, 2018.
Article in English | WPRIM | ID: wpr-715134

ABSTRACT

To improve the oral health status of Korean people, it is necessary to encourage proper oral hygiene management habits, such as toothbrushing, through appropriate health promotion techniques. Therefore, the purpose of this study was to evaluate the removal of plaque and tooth abrasion using ultra-soft (filament 0.11~0.12 mm) and soft toothbrushes for toothbrushing. The plaque removal was performed using a dentiform and Arti-spray, and the Patient Hygiene Performance (PHP) index was calculated as the sum total score divided by the total number of surfaces. In the abrasivity experiment, according to the number of brushings, a micro Vickers hardness tester was used, and a sample in the range of 280~380 Vickers hardness number was selected. The number of toothbrushing stroke were 1,800 (2 months), 5,400 (6 months), 10,800 (12 months), and 21,600 (24 months). The tooth abrasion was measured using a scanning electron microscope. Statistical analysis was performed using IBM SPSS Statistics 22.0 and a p-value < 0.05 was considered significant. According to the results, there was no statistically significant difference in the degree of plaque removal between ultra-soft and soft toothbrushes. The difference in tooth abrasion between before and after toothbrushing was found to be greater with the soft toothbrushes than with the ultra-soft toothbrushes. Therefore, the ultra-soft toothbrush not only lowers tooth damage by reducing tooth abrasion, but also shows a similar ability to remove plaque as soft toothbrushes.


Subject(s)
Humans , Dental Plaque , Hardness , Hardness Tests , Health Promotion , Hygiene , Oral Health , Oral Hygiene , Stroke , Tooth Abrasion , Tooth , Toothbrushing
17.
Endocrinology and Metabolism ; : 413-422, 2018.
Article in English | WPRIM | ID: wpr-716962

ABSTRACT

BACKGROUND: We previously reported a patient with congenital adrenal hyperplasia (CAH) with compound heterozygous mutations in the cytochrome P450 17A1 (CYP17A1) gene. One allele had a p.His373Leu and the other a new p.Glu383fsX36 mutation. The aim of this study was to investigate the functional properties of a new allele present in a compound heterozygote of CYP17A1. METHODS: To understand how p.His373Leu and p.Glu383fsX36 affect P450c17 enzymatic activity, wild type and mutant CYP17A1 cDNAs were cloned into flag-tagged pcDNA3 vector and introduced into human embryonic kidney cells 293T (HEK293T) cells. Protein expression levels of CYP17A1 were then analyzed. And the activities of 17α-hydroxylase and 17,20-lyase of CYP17A1 were evaluated by measuring the conversion of progesterone to 17α-hydroxyprogesterone and of 17α-hydroxypregnenolone to dehydroepiandrosterone, respectively. In addition a computer model was used to create the three-dimensional structure of the mutant CYP17A1 enzymes. RESULTS: Production of the p.His373Leu mutant protein was significantly lower than that of the wild type protein, and the p.Glu383fsX36 protein was hardly produced. Similarly the enzymatic activity derived from the p.His373Leu mutant vector was significantly lower than that obtained from the wild type vector, and little activity was obtained from the p.Glu383fsX36 vector. Three-dimensional modeling of the enzyme showed that p.His373 was located in region important for heme-binding and proper folding. Neither the p.His373Leu nor the p.Glu383fsX36 mutant protein formed a heme-binding structure. CONCLUSION: Enzyme activity measured in both mutants disappeared completely in both 17α-hydroxylase and 17,20-lyase. This result accounts for the clinical manifestations of the patient with the compound heterozygous CYP17A1 mutations.


Subject(s)
Humans , Adrenal Hyperplasia, Congenital , Alleles , Clone Cells , Computer Simulation , Cytochrome P-450 Enzyme System , Dehydroepiandrosterone , DNA, Complementary , Heterozygote , Kidney , Mutant Proteins , Progesterone , Steroid 17-alpha-Hydroxylase
18.
Journal of Veterinary Science ; : 559-561, 2017.
Article in English | WPRIM | ID: wpr-11450

ABSTRACT

A dog with a history of diarrhea and dyschezia exhibited an oval-shaped, soft-tissue opacity mass in the abdomen on radiographs. CT examination revealed a large fluid-filled structure displacing the urinary bladder, prostate, and colon. The mass had continuity with the prostate; therefore, it was tentatively diagnosed as a paraprostatic cyst. Cytologic examination was performed and the mass was considered a non-inflammatory cyst. However, after surgery, histopathologic examination revealed a necrotic, inflamed cystic lipoma. This case shows that unusual intra-abdominal lipomas may have a cystic appearance.


Subject(s)
Animals , Dogs , Abdomen , Colon , Constipation , Diagnostic Imaging , Diarrhea , Lipoma , Prostate , Urinary Bladder
19.
Journal of the Korean Ophthalmological Society ; : 846-851, 2017.
Article in Korean | WPRIM | ID: wpr-65565

ABSTRACT

PURPOSE: To compare the degrees of conjunctival injection and corneal toxicity between preservative and preservative-free topical 0.1% fluorometholone after strabismus surgery. METHODS: A randomized, prospective clinical study was performed to compare the degrees of conjunctival injection and corneal toxicity between preservative and preservative-free topical 0.1% fluorometholone after strabismus surgery. Sixty-one patients with intermittent exotropia were included in this study. They were told to apply antibiotic eye drops (ED) and either preservative or preservative-free topical 0.1% fluorometholone (F1) three times a day. Measurements of the degrees of conjunctival injection and corneal toxicity were performed at postoperative 1 week and 3 weeks each. RESULTS: Seventeen patients (34 eyes) were included in group 1 (preservative F1) and twenty patients (40 eyes) were included in group 2 (preservative-free F1). The average pixel value (measured via the Image J software) representing the degree of conjunctival injection was 31,732 ± 9,946 in group 1 and 38,347 ± 12,189 in group 2 at postoperative 1 week, while the average pixel value was 10,150 ± 4,493 in group 1 and 11,836 ± 4,290 in group 2 at postoperative 3 weeks. There was a significant difference between the decrease in pixel value for the two groups (p = 0.040). There was no significant difference in the mean value of the Oxford stain score between the two groups at postoperative 3 weeks, however the mean questionnaire scores in group 2 were significantly lower than in group 1 (p = 0.001). CONCLUSIONS: Preservative-free 0.1% fluorometholone ED demonstrated a larger decrease in the degree of conjunctival injection than for preservative ED after strabismus surgery. Therefore, the use of preservative-free steroid ED may be beneficial for decreasing both conjunctival injection and postoperative discomfort following strabismus surgery.


Subject(s)
Humans , Clinical Study , Exotropia , Fluorometholone , Ophthalmic Solutions , Prospective Studies , Strabismus
20.
Journal of the Korean Ophthalmological Society ; : 634-639, 2017.
Article in Korean | WPRIM | ID: wpr-178261

ABSTRACT

PURPOSE: To evaluate the morphometric differences of bony nasolacrimal ducts (BNLDs) using computed tomography (CT) in Koreans with primary acquired nasolacrimal duct obstruction (PANDO). METHODS: From March 2014 to March 2016, 40 unilateral PANDO patients and 40 control subjects were retrospectively reviewed. The axial, sagittal, and coronal planes of CT were used for image evaluation. The proximal, minimal, and distal transverse diameters (TDs) of the BNLD were assessed. The length, sagittal orientation angle of BNLD, relative lacrimal sac-BNLD angle, nasal floor-BNLD angle, and turbinate angle were investigated. In addition, the distance between the bilateral BNLD and inter-frontozygomatic suture distance were also measured. RESULTS: There were no morphologic differences between the PANDO and non-PANDO sides within PANDO patients. The proximal and minimum BNLD TD measurements were significantly narrower in the PANDO patients, as compared with the control group (p = 0.010 and p = 0.017, respectively). The lacrimal sac-BNLD angle, nasal floor-BNLD angle, and turbinate angle also exhibited statistically significant differences between the PANDO patients and the control group (p = 0.019, p = 0.001, and p < 0.001, respectively). CONCLUSIONS: Although this study was performed in a small group, the narrow proximal and minimum BNLD TD in PANDO patients (in both the PANDO and non-PANDO sides) may be associated with PANDO development in Koreans. Additionally, the narrow lacrimal sac-BNLD, nasal floor-BNLD, and turbinate angle might be possible causative factors of PANDO.


Subject(s)
Humans , Nasolacrimal Duct , Retrospective Studies , Sutures , Turbinates
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