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      • KCI등재

        소아 복통에서 소아과 의사에 의한 초음파 검사의 유용성

        박현석,위주희,박재홍,Park, Hyun-Seok,We, Ju-Hee,Park, Jae-Hong 대한소아소화기영양학회 2011 Pediatric gastroenterology, hepatology & nutrition Vol.14 No.2

        목적: 초음파 검사는 복통 환자의 선별 검사로 널리 사용되고 있다. 소아의 복통 환자에서 소아청소년과 의사에 의해 시행된 초음파 검사의 유용성에 대해 조사하였다. 방 법: 2008년 11월부터 2010년 6월까지 복통을 주소로 복부 초음파 검사를 받았던 소아 환자의 의무기록을 후향적으로 분석하였다. 결 과: 대상 환자는 628명(남자 325명, 여자 303명)이었고, 평균 연령은 $8.08{\pm}4.61$세였다. 급성 복통이 427명(68.0%), 1개월 이상의 만성 복통이 201명(32.0%)이었다. 복통의 위치는 미만성 36.9%, 배꼽주위 24.4%, 상복부 21.0%, 우하복부 8.1%, 하복부 3.0%, 우상복부 2.9%, 좌하복부 2.4%, 좌상복부이 1.3%였다. 327명(52.1%)에서 특이 소견이 없었고, 이상 소견이 있었던 301명(47.9%) 중 장간막 림프절염 170명, 소장염 또는 대장염 55명, 장중첩증 19명, 급성 충수돌기염 16명, 담관낭종 10명, Henoch-Sh$\ddot{o}$lein purpura 8명, 췌장염 2명이었다. 39명(6.2%)에서 복부 컴퓨터 단층 촬영 또는 자기공명촬영 검사가 병행되었는데 33명에서 동일한 결과가 나왔다. 복부 컴퓨터 단층 촬영을 통해 충수돌기염 2명, 췌장염 1명, Henoch-Sch$\ddot{o}$nlein purpura 1명이 진단되었다. 그러나 복부 초음파 검사에서 충수돌기염이 의심되었던 2명은 복부 컴퓨터 단층 촬영에서 진단이 되지 않았으나 수술을 통해 최종 충수돌기염으로 확진되었다. 전체 환자 중 624예(99.4%)에서 초음파 검사 결과와 최종 진단이 일치하였다. 결론: 소아과 의사에 의한 초음파 검사는 소아 복통의 감별진단에 신속하고 정확한 정보를 줌으로써 선별 검사로써 가치가 높으며 비침습적이고 방사선 조사가 없는 장점이 있다. Purpose: Ultrasonography (US) is widely used as a screening test in patients with abdominal pain (AP). We investigated the usefulness of US by a pediatrician in children with AP. Methods: We retrospectively analysed the medical records of children with AP who undertook US from December, 2008 to July, 2010. Results: A total of 628 patients (325 male, 303 female) were enrolled in this study. The mean age of patients was $8.08{\pm}4.61$ years. Duration of AP was acute in 427 and chronic in 201 patients. Localization of AP was diffuse (36.9%), periumbilical (24.4%), epigastric (21.0%), and right lower quadrant (8.1%). On the examination, there were no abnormal findings in 327 patients (52.1%). Abnormal ultrasonographic findings were mesenteric lymphadenitis (27.1%), intestinal mural thickening (10.0%), intussusception (3.0%), appendicitis (2.6%), choledochal cyst (1.6%), and pancreatitis (0.3%). We performed additional imaging studies such as computed tomography (CT) or magnetic resonance imaging (MRI) in 39 patients who showed obscure findings on the US. In 33 patients (84.6%), the same results were obtained from CT or MRI. Two cases of appendicitis, one case of pancreatitis and one case of Henoch-Sh$\ddot{o}$nlein purpura were diagnosed by the CT examination. However, there were two cases of appendicitis diagnosed by US thathad no evidence of appendicitis on the CT. Diagnostic accuracy of initial US in children with abdominal pain was 99.4%. Conclusion: US by a pediatrician as a screening test in children with AP provides a rapid and accurate diagnostic indication and has non-invasive and radiation-free advantages.

      • KCI등재후보

        Preliminary Study of Bioinformatics Patents and Their Classifications Registered in the KIPRIS Database

        박현석 한국유전체학회 2012 Genomics & informatics Vol.10 No.4

        Whereas a vast amount of new information on bioinformatics is made available to the public through patents, only a small set of patents are cited in academic papers. A detailed analysis of registered bioinformatics patents, using the existing patent search system, can provide valuable information links between science and technology. However, it is extremely difficult to select keywords to capture bioinformatics patents, reflecting the convergence of several underlying technologies. No single word or even several words are sufficient to identify such patents. The analysis of patent subclasses can provide valuable information. In this paper, I did a preliminary study of the current status of bioinformatics patents and their International Patent Classification (IPC) groups registered in the Korea Intellectual Property Rights Information Service (KIPRIS) database.

      • KCI등재

        To Apply or to Declare, or Both? Links between the Two Types of Intervention under the ICJ Statute

        박현석 (사) 이준국제법연구원 2013 Journal of East Asia and International Law Vol.6 No.2

        It is conceivable that the construction of a convention is in question in a case brought before ICJ and a State that is a party to the convention but not to the case has legal interests which may be affected by the construction given by the judgment in the case. As hinted at in the Whaling in the Antarctic case and the Sovereignty over Pulau Ligitan and Pulau Sipadan case, such a third State might intervene in the proceedings under Article 62 as well as Article 63 of the Statute unless it should be interpreted otherwise. In light of relevant provisions of the Statute and jurisprudence of the Court, this paper explores the question whether such a State has the choice, to submit an application to intervene under Article 62 or to make a declaration of intervention under Article 63.

      • KCI등재

        Analysis of the Effect of Renal Replacement Therapy: In the Prolonged Extracorporeal Membrane Oxygenation Patients

        박현석,류세민,박성민,김기환,임선혜,신희곤,조성준 대한흉부외과학회 2014 The Korean Journal of Thoracic and Cardiovascular Vol.47 No.4

        Background: This paper aimed to verify the effects of renal replacement therapy on changing the levels of serum creatinine for different veno-arterial and veno-venous configurations in prolonged extracorporeal membrane oxygenation (ECMO) patients. Methods: The subjects were chosen 71 patients who had undergone more than 1,440 minutes (24 hours) of the therapy from among 117 patients who had undergone ECMO insertion between January 2008 and December 2012. The patients were separated into the veno-arterial configuration group I (51 patients) and the veno-venous configuration group II (20 patients). The difference in the level of serum creatinine (△Cr) between before or just after ECMO insertion (CrI) and the level when the pump time was between 2,880 and 4,320 minutes (CrF) was checked (ΔCr=CrF–CrI), and the average ΔCr for each group was compared using a Student t-test at the confidence interval (CI) of 95%. Results: The change in the level of serum creatinine was an increase of 0.341 mg/dL (=0.9202) for group I and a decrease of 0.120 mg/dL (=1.5292) for group II. The change was significantly high for group I (p=0.011, CI=95%). Meanwhile, within group I, when renal replacement therapy was not done, there was a significant increase in the level of serum creatinine (p=0.009, CI=95%). Conclusion: For ECMO insertion patients whose pump time was more than 1,440 minutes, there was a significant change in the level of serum creatinine when renal replacement therapy was not done, for the veno-arterial configuration of group I.

      • KCI등재

        A Treatment Case of Delayed Aortic Injury: The Patient with Posterior Rib Fracture

        박현석,류세민,조성준,박성민,임선혜 대한흉부외과학회 2014 The Korean Journal of Thoracic and Cardiovascular Vol.47 No.4

        A 66-year-old male patient arrived at the emergency room with a crush injury to his chest. Multiple rib fractures, hemothorax on both sides, left scapular fracture, liver laceration, and retroperitoneal hematoma were found upon the radiologic examination. After closed thoracostomy, the patient had been initially admitted to the intensive care unit, but he was transferred to the general ward on the next day. On the 4th post-trauma day, the patient complained of severe pain and there was bloody drainage through the chest tube. This case is an exploration with the consideration of the possibility of major bleeding and the subsequent repair of the descending thoracic aorta. This case is regarded as a case in which the aorta wall was damaged as the sharp margin of the fractured ribs caused continuous irritation.

      • KCI등재

        A Treatment Case of Endoscopic Removal of Left Ventricular Thrombus, During Coronary Artery Bypass Graft

        박현석,류세민,조성준,박성민,임선혜 대한흉부외과학회 2014 The Korean Journal of Thoracic and Cardiovascular Vol.47 No.4

        Left ventricular thrombus is a common complication related to acute myocardial infarction. Removing this with an incision of the free wall of the left ventricle may cause fatal cardiac dysfunction or arrhythmias. Furthermore, performing incision and suture on the fragile myocardium of an acute myocardial infarction patient may cause serious bleeding complications. If there is a patient with left ventricular thrombus who needs thoracotomy for another reason, the case is attempted with the thought that if effective intraventricular visualization and manipulation can be done, fatalities caused by incision and suture may be reduced. For patients undergoing cardiopulmonary bypass, if intracardiac manipulation is required, an endoscope can be used, and given the potential complications after the incision and suturing of the infarcted tissue, the benefits are deemed sufficient.

      • KCI등재후보

        Management of Aneurysms of the Proximal (A1) Segment of the Anterior Cerebral Artery

        박현석,최재형,강명진,허재택 대한뇌혈관외과학회 2013 Journal of Cerebrovascular and Endovascular Neuros Vol.15 No.1

        Objective:Aneurysms originating from the proximal segment (A1) of the anterior cerebral artery are rare; however, because of their small size, the risk of injury of perforating arteries, and the location of the aneurysm in the surgical field, they are challenging to treat. We report on 15 patients with A1 aneurysms and review surgical views according to the direction of aneurysms. Methods:Fifteen patients were diagnosed with A1 aneurysms and underwent surgical clipping or endovascular coiling at our institution between January 2006 and March 2012. We conducted a retrospective review of clinical and radiological features of all patients with A1 aneurysms. Results:Nine patients underwent surgical clipping, and six patients received endovascular coiling. Six patients (40%) had multiple aneurysms. A1 aneurysms ranged in size from 1.5 to 8.2 mm, with an average size of 3.26 mm. Most A1 aneurysms (73%) had a posterior direction. In the surgical view, A1 aneurysms projecting posteriorly were located behind the A1 trunk. The A1 aneurysm projecting posteroinferiorly was completely eclipsed by the parent artery. In A1 aneurysms with a posterosuperior or superior direction, finding and clipping the aneurysm neck was relatively easy. Thirteen patients (87%) had an excellent outcome, one had moderate disability, and one died. Conclusion:A1 aneurysms have certain characteristics; small size, multiple aneurysms, and, usually, a posterior direction. A1 aneurysms with a posterosuperior or superior direction are relatively easy to assess, however, clipping of A1 aneurysms with a posterior or posteroinferior direction is more difficult. Endovascular coiling is an alternative therapeutic option when surgical clipping is expected to be difficult.

      • KCI등재

        Seasonal variation in growth of Berkshire pigs in alternative production systems

        박현석,오상현 아세아·태평양축산학회 2017 Animal Bioscience Vol.30 No.5

        Objective: The objective of the present study was to investigate the effects of farrowing month (FM), parity and sex on the growth performance of Berkshire swine raised in alternative production systems. Methods: A total of 40 farrowing records from 27 sows and 1,258 body weight (BW) records from 274 piglets collected over a two-year period were used for the analysis. The BWs were recorded at birth, weaning (28 d), 56, 84, 112, and 140 days. Any BW not recorded on schedule was recalculated to conform the days of age among corresponding BW records, using growth curves drawn with polynomial functions whose power was determined by the number of existing observations for each individual. Results: The mean parity (±standard deviation) of the sows was 3.42±2.14. The sows that farrowed in June had the lowest number of total born with an average of 6.25±2.22 piglets per sow. However, the lowest average number of piglets weaned at day 28 was found in sows that farrowed in May, as well as the highest number recorded for the stillborn piglets with an average of 2.67 piglets per sow. Moreover, the smallest increase in weight from birth to weaning occurred in piglets that were farrowed in May, which also corresponds with the average daily gain (ADG) of 0.29 kg and the last recorded weight measurement on day 140 of 41.69±1.45 kg. Contrastingly, the highest growth rate was found among pigs farrowed in June, with the largest increase in weight of 7.55 kg from birth to weaning, the highest ADG of 0.51 kg from birth to 140 day of age and the highest BW of 74.70±1.86 kg recorded on day 140. Conclusion: Pigs farrowed in June also had the least number of piglets that died between birth and weaning. The zone of thermal comfort found in sows reared in indoor confinement systems did not improve the reproductive performance of the sows reared in an outdoor, alternative production system, while the growth performance of the piglets was improved when the ambient temperature was consistently hot or consistently cold.

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