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Correlation between the time elapsed after liposuction and the risk of fat embolism: An animal model
Lim, Kwang-Ryeol,Cho, Jeong-Min,Yoon, Chung-Min,Lee, Keun-Cheol,Lee, Sang-Yun,Ju, Mi-Ha Korean Society of Plastic and Reconstructive Surge 2018 Archives of Plastic Surgery Vol.45 No.1
Background Liposuction has become one of the most frequently performed procedures in the field of aesthetic surgery. Fat embolism syndrome after liposuction can easily be overlooked or underestimated; however, occasionally, fulminating fat embolism syndrome can develop and lead to a critical situation within 2-3 days after lipoplasty. Changes over time in the amount of circulating fat particles and the histology of major organs have not yet been studied. Methods This study was conducted using 18 male Sprague-Dawley rats aged 12 weeks and weighing 500-628 g (average, 562 g). Fifteen rats were used as the experimental group and 3 as the control group. Under general anesthesia, tumescent-technique liposuction was performed at the lateral flank areas and abdomen for 1 hour. Blood, lung, and brain tissue specimens were obtained at 1 hour, 1 day, and 2 days after the liposuction procedure. Results The average number of fat particles in the blood samples was 25,960/dL at 1 hour, 111,100/dL at 24 hours, and 21,780/dL at 48 hours. The differences between study groups were statistically significant. Both intravascular and extravascular fat particles with inflammation were seen in all 15 rats, as were inflammatory cell infiltration, hemorrhage, and consolidation with shrinkage of the lung alveoli. Conclusions These results imply that there is a strong possibility of fat embolism syndrome after liposuction in real clinical practice, and the first 24-48 hours after the operation were found to be the most important period for preventing pulmonary embolism and progression to fulminating fat embolism syndrome.
Spinal Cellular Schwannoma: A Case Report of Acute Post-Traumatic Paralysis
Lim Dae Hyun,Pyo Ju-Yeon,Jeong Yeong Ha,Jin Byung Ho,Kim Kwang-Ryeol 대한말초신경학회 2023 The Nerve Vol.9 No.2
This case report describes a 64-year-old female patient who presented to the emergency department with lower back pain, bilateral leg pain, and numbness. Magnetic resonance imaging revealed a mass-like lesion at the L2 level, which was surgically removed and was found to be a cellular schwannoma upon histopathological examination. The patient exhibited immediate postoperative improvement and was referred for rehabilitation. This case highlights the importance of considering cellular schwannoma as a possible diagnosis in patients with intradural extramedullary tumors causing compressive symptoms.
Kim, Kwang Su,Lim, Sung Ryeol,Kim, Sung-Eun,Lee, Jun Young,Chung, Chan-Hwa,Choe, Woo-Seok,Yoo, Pil J. Elsevier 2017 Sensors and actuators. B Chemical Vol.242 No.-
<P><B>Abstract</B></P> <P>Highly accurate and prompt monitoring of cortisol is imperative for the prevention of stress-related diseases. In this study, we present a novel electrochemical biosensor for cortisol detection harnessing an electrochemical sensing platform consisting of a reduced graphene oxide (rGO) electrode, a bifunctional protein interlayer, and an antibody probe that specifically recognizes cortisol molecules. A thermally denatured bovine serum albumin (d-BSA) protein layer was directly adsorbed as an interlayer onto the rGO electrode surface via pi-stacking interactions, which provides the bifunctionality of creating covalent anchoring sites for anti-cortisol antibody probes and preventing the nonspecific binding of undefined substances. Electrochemical impedance spectroscopic (EIS) measurements show that the constructed sensing platform (antibody/d-BSA/rGO) exhibits picomolar-range sensitivity cortisol detection with a wide linear dynamic range spanning 10pM–100nM. In addition, our sensor exhibits high selectivity toward cortisol with negligible cross-binding reactivity to the cortisol analogs, aldosterone and progesterone. Moreover, almost complete spike recovery was confirmed with cortisol present in human saliva samples containing several interfering compounds. The demonstrated strategy for constructing the protein/rGO composite sensing platform is simple but versatile. Therefore, it is expected to facilitate efficient interfacing of various biomolecular probes with graphene-based and/or other electrode materials with hydrophobic surfaces.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Fabrication of highly sensitive and selective cortisol-detecting electrochemical sensors (detection limit ∼10pM). </LI> <LI> Introduction of bifunctional BSA for covalent anchoring with anti-cortisol antibody and preventing nonspecific binding. </LI> <LI> Almost complete spike recovery confirmed with cortisol present in human saliva samples. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
비결손의 재건 : A CASE REPORT 치험 1예 보고
김석권,임광렬,김성수,김형만 大韓成形外科學會 1985 Archives of Plastic Surgery Vol.12 No.2
The nose has important physiological functions such as the regulations of temperature, humidity & filtration of the air flowing into the lung and also play an important role in concluding one's feature as the most prominent part which is located in the center of face.So a small deformity or defect may upset the harmony & balance of the whole face and psychological burden & difficulty in social life. The nasal defect is classified into the skin defect, defect of supportive frame-work, lining defect and full thickness loss of the nose. In general, reconstruction of the nose has been performed using as near tissue from the nose as possible for good color match, texture and reduce the number of operation. Especially in the case of total defect of the nose, different from partial loss or deformity, quantities of tissue and several stages of operation are needed for reconstruction of the skin, inner lining and supportive structures, thus total reconstructive rhinoplasty has been thought to be one of the most difficult operation in the sphere of plastic surgery. In the our department of plastic surgery of busan national university hospital, the total reconstructive rhinoplasty was performed in a patient who lost the entire nose except a part of ala including both inside cheek due to electric burn by use of bilateral cheek flap to reinforce the margin of pyriform aperature, midline forehead flap & scalping flap to restore the soft tissue defedt, V-Y advancement flap from nasal dorsum to lengthen the columella and iliac bone graft in 4 stages. So we obtained a satisfactory result and report it with review of articles.
Utility of Groin Flap in Penile Reconstruction
최지안,Kwak Jung-Ha,Lim Kwang-Ryeol,윤청민 대한창상학회 2020 Journal of Wound Management and Research Vol.16 No.3
Background: Reconstruction surgery for skin and soft tissue defects of the penis would ideally secure sufficient volume, be safe in procedure, and involve a simple surgical technique. Among the wide variety of techniques that have been employed, the groin flap-based technique is considered a relatively simple option for volumetric reconstruction. In this retrospective study, the authors report cases of penile reconstructive surgery using a groin flap.Methods: We performed a retrospective chart review of patients with penile defects treated in our department. Reconstructive surgeries were carried out using pedicled groin flaps. Charts were reviewed to investigate duration of the surgeries, recovery and follow-up periods, and bulkiness at one and 10 months after surgery. Patients were observed postoperatively for complications, urination, and erectile function.Results: Six patients hospitalized from March 2009 to September 2013 for penile defects underwent surgery in our department. All patients recovered without any flap loss. The most common complication after surgery was wound dehiscence. Circumferences of penile shafts were measured at 1 and 10 months after surgery, and penile bulkiness at rest were found to be maintained at >86%. There were no patients with contracture, and in all patients, urination and erectile functions were satisfactory.Conclusion: Reconstructing penile defects using groin flaps was found to be favorable in terms of volumetric reconstruction and postoperative patient satisfaction. Furthermore, the surgery and recovery periods are short, and rates of complication and donor site morbidity are also low.