1.Use of Quantitative CT to Predict Postoperative Lung Function (Comparison of Quantitative CT and Perfusion Lung Scan).
Jo Han RHEE ; Seog Jae LEE ; Sung Jin KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 2000;33(10):798-805
BACKGROUND: the prediction on changes in the lung function after lung surgery would be an important indicator in terms of the operability and postoperative complications. In order to predict the postoperative FEV1 - the commonly used method for measuring changes in lung function- a comparison between the quantitative CT and the perfusion lung scan was made and proved its usefulness. MATERIAL AND METHOD: The subjects included 22 patients who received perfusion lung scan and quantitative CT preoperatively and with whom the follow-up of PFT were possibles out of the pool of patients who underwent right lobectomy or right pneumonectomy between June of 1997 and December of 1999. The FEV1 and FVC were calibrated by performing the PFT on each patient and then the predicted FEV1 and FVC were calculated after performing perfusion lung scan and quantitative CT postoperatively. The FEV1 and FVC were calibrated by performing the PFT after 1 week and after 3 momths following the surgery. RESULTS: There was a significant mutual scan and the actual postoperative FEV1 and FVC at 1 week and 3 months. The predicted FEV1 and FVC(pneumonectomy group : r=0.962 and r=0.938 lobectomy group ; r=0.921 and r=913) using quantitative CT at 1 week postoperatively showed a higher mutual relationship than that predicted by perfusion lung scan(pneumonectomy group : r=0.927 and r=0.890 lobectomy group : r=0.910 and r=0.905) The result was likewise at 3 months postoperatively(CT -pneumonectomy group : r=0.799 and r=0.882 lobectomy group : r=0.934 and r=0.932) CONCLUSION: In comparison to perfusion lung scan quantitative CT is more accurate in predicting lung function postoperatively and is cost-effective as well. Therefore it can be concluded that the quantitative CT is an effective method of replacing the perfusion lung scan in predicting lung function post-operatively. However it is noted that further comparative analysis using more data and follow-up studies of the patients is required.
Follow-Up Studies
;
Humans
;
Lung*
;
Perfusion*
;
Pneumonectomy
;
Postoperative Complications
2.Acute Rotator Cuff Tears due to Low Voltage Electrical Injury: A Case Report
Jae Hyun YOO ; Sung Min RHEE ; Ho Yong SHIM ; Jae Sung LEE
Clinics in Shoulder and Elbow 2018;21(2):101-104
Since shoulder have a higher proportion of muscle which would have low electrical resistance, there could be more electrical damage to the rotator cuff muscles. We present a patient with acute rotator cuff tear by sudden uncontrolled jerking contractions caused by an electrical shock. A case of 42-year-old man with acute rotator cuff tear due to electrical injury to the shoulder was presented. Magnetic resonance imaging showed a full thickness tear and an undulating appearance of the peripheral end of the torn supraspinatus and infraspinatus muscle, suggesting an acute complete rupture. By arthroscopic surgery, the torn rotator cuff tendons were repaired with a suture bridge technique. At the final follow-up, the patient had a full, pain-free range of motion and had fully recovered shoulder muscle power.
Adult
;
Arthroscopy
;
Burns, Electric
;
Electric Impedance
;
Follow-Up Studies
;
Humans
;
Magnetic Resonance Imaging
;
Muscle Contraction
;
Muscles
;
Range of Motion, Articular
;
Rotator Cuff
;
Rupture
;
Shock
;
Shoulder
;
Sutures
;
Tears
;
Tendons
3.A Clinical Analysis of Chronic Subdural Hematoma according to Age Factor.
Jae Eun JEONG ; Gook Ki KIM ; Jong Tae PARK ; Young Jin LIM ; Tae Sung KIM ; Bong Arm RHEE ; Won LEEM
Journal of Korean Neurosurgical Society 2000;29(6):748-753
No abstract available.
Age Factors*
;
Hematoma, Subdural, Chronic*
5.Localization and isolation of anthelmintic activity on Clonorchis sinensis from stem cortex of Machilis thunbergii.
Jae Ku RHEE ; Byeong Kirl BAEK ; Byung Zun AHN ; Sung Hwan OH
The Korean Journal of Parasitology 1982;20(1):9-13
The present work was to localize and isolate the anthelmintic substance from stem cortex of Machilis thunbergii which grows in all parts of the Korea peninsula. The dried M. thunbergii bark was extracted with a solvent mixture (Methanol: Ethyl acetate/1:1) by a Soxhlet extractor at 70C for 24 hours, and then the extract was separated into solid matter (negative wormicidal) and benzene extract (positive wormicidal) by benzene solvent. The anthelmintic action was observed on the cercaria, the liberated metacercaria and the adult of Clonorchis sinensis. On the silica gel thin layer chromatography with a spot of benzene extract in benzene solvent, nine spots were observed in iodine chamber and the spot of Rf. 0.16 value of them appeared the most strong wormicidal effect on the cercaria and the liberated metacercaria of C. sinensis. Afterward, a 0.3 g colourless solid substance which was equivalent to the Rf. 0.16 value spot was isolated from the benzene extract of 3 kg M. thunbergii stem cortex by means of silica gel column chromatography using benzene carrier, and the adult of C. sinensis was killed within 6 minutes by 0.05 percent solution of the substance.
parasitology-helminth-trematoda-Clonorchis sinensis
;
chemotherpay-clonorchiasis
;
rabbit
;
liver
;
Machilis thunbergii
6.A Case of Primary Small Cell Neuroendocrine Carcinoma of the Rectum.
Jeong Hwan KIM ; Young Ho KIM ; Jae Hong JUNG ; Bong Geun SONG ; Sung Chul CHOI ; Poong Lyul RHEE ; Jae J KIM ; Jong Chul RHEE
Korean Journal of Gastrointestinal Endoscopy 2003;27(4):239-243
Neuroendocrine carcinoma of the colon is a very rare entity. However, this type of tumor is known to have aggressive progression and poor prognosis. A case of a 72-year-old male is presented in this report. A 3 cm sized tumor was found on the rectum with multiple liver metastases. The pathological findings including a positive immunohistochemical staining for synaptophysin and cytokeratin done with colonoscopic biopsy and liver biopsy confirmed the tumor as a neuroendocrine carcinoma. The nomenclature and definition of this disease still remains somewhat unclear, and not a small population of this disease may thus have been misdiagnosed and treated as other less aggressive entities, such as carcinoid tumor. The necessity to make an accurate differential diagnosis in such cases is thus emphasized because of different treatments and clinical courses. For its rarity and clinical significance, we report this case with a review of the literatures.
Aged
;
Biopsy
;
Carcinoid Tumor
;
Carcinoma, Neuroendocrine*
;
Colon
;
Diagnosis, Differential
;
Humans
;
Keratins
;
Liver
;
Male
;
Neoplasm Metastasis
;
Prognosis
;
Rectum*
;
Synaptophysin
7.A Case of Primary Small Cell Neuroendocrine Carcinoma of the Rectum.
Jeong Hwan KIM ; Young Ho KIM ; Jae Hong JUNG ; Bong Geun SONG ; Sung Chul CHOI ; Poong Lyul RHEE ; Jae J KIM ; Jong Chul RHEE
Korean Journal of Gastrointestinal Endoscopy 2003;27(4):239-243
Neuroendocrine carcinoma of the colon is a very rare entity. However, this type of tumor is known to have aggressive progression and poor prognosis. A case of a 72-year-old male is presented in this report. A 3 cm sized tumor was found on the rectum with multiple liver metastases. The pathological findings including a positive immunohistochemical staining for synaptophysin and cytokeratin done with colonoscopic biopsy and liver biopsy confirmed the tumor as a neuroendocrine carcinoma. The nomenclature and definition of this disease still remains somewhat unclear, and not a small population of this disease may thus have been misdiagnosed and treated as other less aggressive entities, such as carcinoid tumor. The necessity to make an accurate differential diagnosis in such cases is thus emphasized because of different treatments and clinical courses. For its rarity and clinical significance, we report this case with a review of the literatures.
Aged
;
Biopsy
;
Carcinoid Tumor
;
Carcinoma, Neuroendocrine*
;
Colon
;
Diagnosis, Differential
;
Humans
;
Keratins
;
Liver
;
Male
;
Neoplasm Metastasis
;
Prognosis
;
Rectum*
;
Synaptophysin
8.Effect of Low - Dose Midazolam for Colonoscopy.
Hwa Young LEE ; Jae Jun KIM ; Young Ho KIM ; In Kyung SUNG ; Hee Jung SON ; Poong Lyul RHEE ; Kwang Cheol KOH ; Seung Woon PAIK ; Jong Chul RHEE
Korean Journal of Gastrointestinal Endoscopy 1998;18(4):499-505
BACKGROUND/AIMS: Because colonoscopy is a painful procedure, analgesics and sedatives may be necessary as premedication. Midazolam reacts quicker, has a more excellent amnesic effect and fewer complications compared to diazepam. The effects of midazolam depend on dose, age, and rapidity of injection. According to several studies, side effects of midazolam were more common in high-dose injections (more than 5 mg) compared to low dose injections (0.03-0.05 rng/kg). Moreover, low dose injections were found to be as effective as high dose injections. However, there was no report about the effect and the side effects of midazolam in Korea. Therefore, we performed this study to determine the effect of low dose midazolam as premedication for colonoscopy. METHODS: We performed colonoscopy in 99 consecutive patients who were randomly selected (midazolam group: 50, placebo group: 49) prospectively from July 1996 to September 1996. Premedication was administered through intravenous injection of midazolam or saline 0.03 mg/kg, combined with intramuscular injections of meperidine 50 mg, and intravenous injections of Buscopan 20 mg in all patients. Blood pressure, puise rate, and O2 saturation by oxymeter were checked before, during, and 30 minutes after colonoscopy. The degree of amnesia, discomfort, cooperation and acceptance of the re-examination were checked.
Amnesia
;
Analgesics
;
Blood Pressure
;
Butylscopolammonium Bromide
;
Colonoscopy*
;
Diazepam
;
Humans
;
Hypnotics and Sedatives
;
Injections, Intramuscular
;
Injections, Intravenous
;
Korea
;
Meperidine
;
Midazolam*
;
Premedication
;
Prospective Studies
9.A Case of Recurrent Fecal Impaction.
In Kyung SUNG ; Hee Jung SON ; Poong Lyul RHEE ; Jae Jun KIM ; Kwang Cheol KOH ; Seung Woon PAIK ; Jong Chul RHEE ; Kyoo Wan CHOI
Korean Journal of Gastrointestinal Motility 1998;4(2):123-126
Fecal impaction is defined as a large compacted mass of feces in the rectum or colon that cannot be passed by the patient. Fecal impaction may be caused by predisposing conditions such as mechenical impediments, neurologic diseases, psychiatric disorders, endocrine diseases, and some medications. And ninety percent of fecal impaction occur in rectum and sigmoid flexure. Recently, we experienced a case of fecal impaction in young female who had no predisposing conditions. A 30-year-old woman was adimtted with abdominal distension and constipation. She was diagnosed fecal impaction in splenic flexure and transverse colostomy was taken. After colostomy was repaired, recurrent fecal impaction was occurred and second transverse colostomy was done. After all, right hemicolectomy was done due to recurrent fecal impaction. She have one or two bowel movements a day after surgery.
Adult
;
Colon
;
Colon, Sigmoid
;
Colon, Transverse
;
Colostomy
;
Constipation
;
Endocrine System Diseases
;
Fecal Impaction*
;
Feces
;
Female
;
Humans
;
Rectum
10.Perioperative Safety and Efficacy of Multilevel Minimally Invasive Transforaminal Lumbar Interbody Fusion: Comparison with Conventional Open Surgery.
Sang Hyuk MIN ; Jae Sung YOO ; Sung Hyun YOON ; Chul Woo RHEE
The Journal of the Korean Orthopaedic Association 2012;47(6):416-424
PURPOSE: This study was aimed to examine the ways to reduce bleeding through minimally invasive multi-segmental fusion by comparing the results of minimally invasive transforaminal lumbar interbody fusion versus those of conventional posterior interbody fusion depending on the number of fused segment. Moreover, the study identified how the new method of fusion contributed to reducing postoperative complications and to fast recovery. MATERIALS AND METHODS: This is a retrospective study conducted on 367 spinal stenosis patients who had been followed up for at least one year (170 patients underwent minimally invasive transforaminal lumbar interbody fusion and 197 patients underwent conventional posterior interbody fusion). The study examined blood loss volume, postoperative drainage volume, operation time, visual analogue scale score, pre- and post-operative levels of protein and albumin, as well as postoperative bed rest period between the two groups. Moreover, the study analyzed the presence of complications during the peri-operative period. RESULTS: The minimally invasive fusion group exhibited a statistically significant decrease in intraoperative bleeding than the conventional infusion group when the number of fused segments in each group was compared. In addition, the difference in the two groups showed a statistically significant increase as the numbers of fused segments rose (p<0.05). On the other hand, a statistically significant increase was shown in the operation time between the minimally invasive fusion group and the conventional fusion group. The difference in the two groups showed a statistically significant increase as the distance of fused segments was extended (p<0.05). CONCLUSION: Minimally invasive transforaminal lumbar interbody fusion is thought to be a useful surgical method to minimize bleeding when the limitations of minimal invasive fusion are supplemented by shortening the operation time.
Bed Rest
;
Drainage
;
Hand
;
Hemorrhage
;
Humans
;
Postoperative Complications
;
Retrospective Studies
;
Spinal Stenosis