1.Trocar Size Selection for Trans-Trocar Appendix Removal in Laparoscopic Appendectomy.
Chang Yeon JUNG ; Jung Min BAE
Journal of Minimally Invasive Surgery 2014;17(1):1-4
PURPOSE: Many disposable laparoscopic instruments are used in laparoscopic surgery. There are several disadvantages in use of disposable laparoscopic instruments, including cost ineffectiveness, environmental contamination, and resource recycling. In addition, a disposable specimen bag has been used in laparoscopic appendectomy. Use of the trans-trocar appendix removal technique provides several advantages compared to use of a specimen bag. Therefore, the aim of this study is to analyze the adequate trocar size for trans-trocar appendix removal. METHODS: A total of 62 patients undergoing appendectomy between June 2012 and September 2012 were identified. After appendectomy, we performed a trans-trocar test using removed appendix specimen and trocars. Three different types of trocars were used for the trans-trocar test, 5 mm, 12 mm, and 11 mm Xcel(R) (Ethicon). We analyzed the success rate. RESULTS: Significant relationships were observed between maximal specimen diameter and body mass index. When BMI was below 20, the success rate of the 11 mm trocar was 86% in the trans-trocar appendix removal test. When BMI was between 20 and 25, the success rate of the 12 mm trocar was 71%, but that of 11 mm was 57%. When BMI was above 25, the success rate of the 15 mm trocar was 62%. CONCLUSION: Although this study had many limitations, a large-sized trocar was needed for trans-trocar appendix removal in more body mass index. When BMI is below 20, an 11 mm trocar is recommended in trans-trocar appendix removal. When BMI is between 20 and 25, a 12 mm trocar is. When BMI is above 25, a 15 mm trocar and a disposable specimen bag are recommended. Further continuous study will be needed for analysis of clinical outcome.
Appendectomy*
;
Appendix*
;
Body Mass Index
;
Humans
;
Laparoscopy
;
Recycling
;
Surgical Instruments*
2.Retroperitoneal Hepatocellular Carcinoma Rupture Mimicking an Adrenal Hematoma
Chang Yeon JUNG ; Jung Min BAE
Journal of Acute Care Surgery 2020;10(2):65-67
The retroperitoneum is a posterior space of the peritoneum, which has many visceral and vascular structures. Spontaneous retroperitoneal hemorrhages have variable causes, the most common of which are diseases of retroperitoneal organs. However, retroperitoneal hemorrhages may be caused by bare area injury. In this case study, a bare area was observed in the right upper quadrant (RUQ) of the retroperitoneum, the posterosuperior region of Couinaud liver segment 7 (bare area) is directly connected to the anterior pararenal space. The rupture or exophyte of the hepatocellular carcinoma on the bare area could invade the retroperitoneum, which may lead to inaccurate diagnosis of the condition. When the mass or the hemorrhage in the RUQ of the retroperitoneum is observed in computed tomography images, it is possible that ruptured hepatocellular carcinoma or a mass on the bare area of the liver, looks like a spontaneous retroperitoneal hemorrhage in the RUQ area for example a right adrenal hemorrhage.
3.Retroperitoneal Hepatocellular Carcinoma Rupture Mimicking an Adrenal Hematoma
Chang Yeon JUNG ; Jung Min BAE
Journal of Acute Care Surgery 2020;10(2):65-67
The retroperitoneum is a posterior space of the peritoneum, which has many visceral and vascular structures. Spontaneous retroperitoneal hemorrhages have variable causes, the most common of which are diseases of retroperitoneal organs. However, retroperitoneal hemorrhages may be caused by bare area injury. In this case study, a bare area was observed in the right upper quadrant (RUQ) of the retroperitoneum, the posterosuperior region of Couinaud liver segment 7 (bare area) is directly connected to the anterior pararenal space. The rupture or exophyte of the hepatocellular carcinoma on the bare area could invade the retroperitoneum, which may lead to inaccurate diagnosis of the condition. When the mass or the hemorrhage in the RUQ of the retroperitoneum is observed in computed tomography images, it is possible that ruptured hepatocellular carcinoma or a mass on the bare area of the liver, looks like a spontaneous retroperitoneal hemorrhage in the RUQ area for example a right adrenal hemorrhage.
4.Pathophysiology and protective approaches of gut injury in critical illness
Chang Yeon JUNG ; Jung Min BAE
Yeungnam University Journal of Medicine 2021;38(1):27-33
The gut is a complex organ that has played an important role in digestion, absorption, endocrine functions, and immunity. The gut mucosal barriers consist of the immunologic barrier and nonimmunologic barrier. During critical illnesses, the gut is susceptible to injury due to the induction of intestinal hyperpermeability. Gut hyperpermeability and barrier dysfunction may lead to systemic inflammatory response syndrome. Additionally, gut microbiota are altered during critical illnesses. The etiology of such microbiome alterations in critical illnesses is multifactorial. The interaction or systemic host defense modulation between distant organs and the gut microbiome is increasingly studied in disease research. No treatment modality exists to significantly enhance the gut epithelial integrity, permeability, or mucus layer in critically ill patients. However, multiple helpful approaches including clinical and preclinical strategies exist. Enteral nutrition is associated with an increased mucosal barrier in animal and human studies. The trophic effects of enteral nutrition might help to maintain the intestinal physiology, prevent atrophy of gut villi, reduce intestinal permeability, and protect against ischemia-reperfusion injury. The microbiome approach such as the use of probiotics, fecal microbial transplantation, and selective decontamination of the digestive tract has been suggested. However, its evidence does not have a high quality. To promote rapid hypertrophy of the small bowel, various factors have been reported, including the epidermal growth factor, membrane permeant inhibitor of myosin light chain kinase, mucus surrogate, pharmacologic vagus nerve agonist, immune-enhancing diet, and glucagon-like peptide-2 as preclinical strategies. However, the evidence remains unclear.
5.Experimental strabismus surgery using N-butyl-2-cyanoacrylate (Histoacryl(R)).
Yeon Chul JUNG ; Bong Leen CHANG
Korean Journal of Ophthalmology 1988;2(2):57-61
Strabismus surgeries using n-butyl-2-cyanoacrylate and 6-0 vicryl suture material were performed in 16 albino rabbits. Both eyes of 16 rabbits were used. The superior and inferior rectus muscles were recessed and resected 5 mm. In 12 rabbits, n-butyl-2-cyanoacrylate was used and those rabbits were divided into 3 groups, each group (4 rabbits, 8 eyes) was sacrificed 1, 2, and 3 weeks after operation respectively. The eyes were enucleated to examine the tensile strength and pathologic findings of the attached area. In 4 rabbits, 6-0 vicryl suture material was used as a control group in this study. This group was sacrificed and examined 3 weeks following the operation. In the cyanoacrylate groups, there were statistically significant differences and a chronologically increasing tendency of tensile strength between groups. Between the cyanoacrylate and the suture material group at 3 weeks post operation, there was no statistically significant differences in the tensile strength. Pathelogicallyr extraocular muscle bundles revealed patchy areas of interstitial inflammatory infiltration and fibrosis in the cyanoacrylate groups. Capillary telangiectasia and muscle fiber regeneration were commonly observed. The findings in specimens 3 weeks after operation revealed rather mild changes, suggesting healed lesions. In the suture material group, mild inflammatory reactions were found.
Animals
;
Enbucrilate/*therapeutic use
;
Rabbits
;
Strabismus/pathology/*surgery
;
Tensile Strength
6.Implantation of Intraocular Lenses in Traumatic Cataract.
Inn Yul YEOM ; Yeon Chul JUNG ; Kwang CHANG
Journal of the Korean Ophthalmological Society 1993;34(10):999-1005
We implanted intraocular lenses in 41 eyes of 41 patients with traumatic cataract without associated retinal injury. All the enrolled patients had sustained injury visited the Incheon Gil Hospital between August 1988 and June 1992. We analyzed age and sex distribution, mode and site of injuries, associated injuries, postoperative complications, methods of operation, final visual results and causes of decreased vision. Nineteen patients(46.4%) achieved final visual acuity of 0.5 or better, 11 patients(26.8%) between 0.1 and 0.5, and the remaining 11(26.8%) below 0.1. Major visual prognostic factors were associated ocular injuries, the state of the posterior lens capule, intraoperative and early postoperative complications. The interval between the first and second operation had little effect on the final vision.
Cataract*
;
Humans
;
Incheon
;
Lenses, Intraocular*
;
Postoperative Complications
;
Retinaldehyde
;
Sex Distribution
;
Visual Acuity
7.A Clinical Study on Implantation of Anterior Chamber Intraocular Lens and Posterior Chamber Intraocular Lens by Scleral Fixation in Eyes without Capsular or Zonular Support.
Inn Yul YEOM ; Jin Ho CHANG ; Yeon Chul JUNG
Journal of the Korean Ophthalmological Society 1993;34(10):950-955
The study was performed retrospectively to compare the results of anterior chamber IOL(Intraocular Lens) implantation and posterior chamber IOL implantation by scleral fixation in cases of inadequate zonular or capsular support during the extracapsular cataract extraction. A total of 27 cases were reviewed of which 11 cases had anterior chamber IOL implantation and 16 cases had posterior chamber IOL implantation by scleral fixation. The follow-up period ranged from two to twenty-four months. Nine of eleven in anterior chamber IOL group and thirteen of sixteen in posterior chamber IOL group had the final corrected vision of 0.5 or better. Vision-threatening complications included two cases of cystoid macular edema in anterior chamber IOL group, whose visual acuity was 0.1 and 0.5, and three cases of vitreous hemorrhage in posterior chamber IOL group, which had little effect on visual outcome The final visual acuity didn't show statistically significant difference between the two groups.
Anterior Chamber*
;
Cataract Extraction
;
Follow-Up Studies
;
Lenses, Intraocular*
;
Macular Edema
;
Retrospective Studies
;
Visual Acuity
;
Vitreous Hemorrhage
8.A Study of the Dietary Intake Status and One Portion Size of Commonly Consumed Food and Dishes in Korean Elderly Women.
Sang yeon KIM ; Kyungah JUNG ; Bokyung LEE ; Yukyung CHANG
Korean Journal of Community Nutrition 1997;2(4):578-592
The use of semiquantitative food frequency to estimate dietary intake has become widespread in nutritional epidemiologic studies. It had been suggested that knowledge about a person's usual portion size of each meal in addition to consumption frequency will improve the accuracy of this method. This study was performed to investigate the dietary intake status(nutrient, food, and dish intake) and one portion size of commonly consumed food and dishes to develop a semiquantitative food frequency questionnaire that will be used to expore the relationship between the incidence of cardiovascular disease and diet in Korean women after menopause. Intake of food or dish in 123 elderly women were measured by 3-day food records in March to May, 1996. The results obtained in this study were summarized as follow : 1) Calcium, vitamin A, and vitamin E intakes were less adequate than Recommended dietary allowances(RDA). 2) The subjects who consumed more than 20% of the energy from fat were 35% and the subjects consumed dietary cholesterol more than 300mg were 18%. 3) The most frequently consumed foods or dishes by the subjects were Korean cabbage kimchi
9.The May-Hegglin Anomaly in a Family.
Jung Ho LEE ; Su Yeon PARK ; Yong Sub KIM ; Jong DAI ; Byung Chang KIM
Journal of the Korean Pediatric Society 1994;37(10):1449-1452
The May-Hegglin anomaly is a rare autosomal dominant trait characterized by platelet abnormalities in the peripheral blood and large (up to 5mu) pale blue staining inclusions in the cytoplasm of neutrophils, eosinophils, basophils, and monocytes. We experienced a case of May-Hegglin anomaly in a 7 year old male and another case out of his family. His initial complaints at the admission were petechiae and intermittent epistaxis. Diagnosis was confirmed by peripheral blood smear and family study. We report the case with brief review of related literature.
Basophils
;
Blood Platelets
;
Child
;
Cytoplasm
;
Diagnosis
;
Eosinophils
;
Epistaxis
;
Humans
;
Male
;
Monocytes
;
Neutrophils
;
Purpura
10.A Case of Gastro-Colic Fistula due to Ectopic Gastric Mucosa and its 99mTcO4 Scan Findings.
Seok Gun PARK ; Yeon Hee LEE ; Chang Young IM ; Jung Hee CHO
Korean Journal of Nuclear Medicine 1998;32(2):172-177
We report a case of gastro-colic fistula caused by ectopic gastric mucosa developed at transverse colon. Fistula was detected by colonofiberscopy. And fistulous tract was proved by barium enema. Meckel's diverticulum scan finding was similar to that of GI bleeding; e.g. injected radioactivity was secreted into the lumen and moved along the lumen. There was no bleeding. And there was no diverticulum in the colon. Absence of diverticular pouch may explain this unusuaal GI bleeding-like scan finding rather than focal collection of radioactivity, which is typical of ectopic gastric mucosa found in the Meckel's diverticulum. Ectopic gastric mucosa was confirmed by colonfiberscopic biopsy. We suggest GI bleeding-like pictures should be included differential diagnosis of Tc-99m-O4 (ectopic gastric mucosa or Meckel's diverticulum) scan.
Barium
;
Biopsy
;
Colon
;
Colon, Transverse
;
Diagnosis, Differential
;
Diverticulum
;
Enema
;
Fistula*
;
Gastric Mucosa*
;
Hemorrhage
;
Meckel Diverticulum
;
Radioactivity
;
Radionuclide Imaging
;
Sodium Pertechnetate Tc 99m*