• Archives of Plastic Surgery
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• 제51권1호
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• pp.87-93
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• 2024

This study aimed to analyze cases of anterolateral thigh (ALT) free flap used for hand reconstruction with terminal perforator-to-digital artery anastomosis. Patients who underwent ALT free flap placement with terminal perforator-to-digital artery anastomosis for hand reconstruction between January 2011 and August 2021 were included. The number, length, and diameter of the perforators and veins, flap size, and operative time were investigated through a retrospective review of charts and photographs. The occurrences of arterial thrombosis, venous thrombosis, arterial spasm, and flap necrosis were analyzed. In total, 50 patients were included in this study. The mean diameter and length of the perforators were 0.68 mm and 3.25 cm, respectively, and the mean number of veins anastomosed was 1.88, with a mean diameter of 0.54 mm. Complications included four cases of arterial thrombosis, one case of venous thrombosis, seven cases of partial necrosis, and one case of total flap failure. Regression analysis showed that a longer perforator was associated with arterial thrombosis whereas larger flap size and number of anastomosed veins were associated with partial necrosis (p < 0.05). The terminal perforator-to-digital artery anastomosis offers advantages in using compact free flaps with short pedicle lengths to cover small hand defects.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 1998년도 The Third Asian Fuzzy Systems Symposium
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• pp.762-766
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• 1998

Mechanical valve is one of the most widely used implantable artificial organs, Since its failure (mechanical failures and thrombosis to name two representative example) means the death of patient, its reliability is very important and early noninvasive detection is essential requirement . This paper will explain the method to detect the thrombosis formation by spectral analysis and neural network. In order quantitatively to distinguish peak of a normal valve from that of a thrombotic valve, a 3 layer backpropagation neural network, which contains 7,000 input nodes, 20 hidden layer and 1output , was employed. The trained neural network can distinguish normal and thrombotic valve with a probability that is higher than 90% . In conclusion, the acoustical spectrum analysis coupled with a neural network algorithm lent itself to the noninvasive monitoring of implanted mechanical valves. This method will be applied to be applied to the performance evaluation of other implantable rtificial organs.

• 대한두경부종양학회지
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• 제22권2호
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• pp.188-191
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• 2006

Papillary thyroid carcinoma is rarely associated with macroscopic vascular invasion or tumor thrombosis. Especially, superior vena cava syndrome(SVCS) resulted from tumor thrombosis of papillary thyroid carcinoma is extremely rare. We present herein a case of SVCS caused by tumor thrombosis from papillary thyroid carcinoma which was successfully solved by intravascular placement of self-expandable stent in 74-year-old woman.

• 대한예방한의학회지
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• 제2권1호
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• pp.165-173
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• 1998

In order to investigate the effect of the Herba Segesbeckiae on the thrombosis induced by endotoxin in rats. The rats were treated with solid extract of Herba Siegesbeckiae 41.9mg /200g(Sample) which were administered orally. And the thrombosis was induced by injecting endotoxin in the caudal vein rats. And then the number of platelets, concentration of fibrinogen, prothrombin time and FDP(fibrinogen degradation product) were measured. The results were as follows; 1. Platelet was increased significantly in sample group compared with control group. 2. Prothrombin time was shortened significantly in sample group compared with control group. 3. Fibrinogen was increased significantly in sample group compared with control group. 4. FDP was decreased significantly in sample group compared with control group. According to the above results, Herba Siegesbeckiae had significant effects on number of Platelets, Prothrombin time, Fibrinogen and FDP. therefore, it is considered that Herba Siegesbeckiae can be applied to diseases related to thrombosis.

• Journal of Trauma and Injury
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• 제31권1호
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• pp.34-37
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• 2018

Upper extremity deep vein thrombosis (DVT) is an unusual condition compared to lower extremity DVT, and it represents about 10% of all DVTs. We report a case of upper extremity DVT after clavicle fracture and immobilization.

• Journal of Trauma and Injury
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• 제32권4호
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• pp.243-247
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• 2019

Subclavian vein injuries occasionally occur as a sequela of penetrating trauma or vascular access, but have rarely been reported to occur after clavicle fracture. The subclavian vessels are mainly enclosed by the subclavius muscle, the first rib, and the costocoracoid ligament. Therefore, in such cases, subclavian vein injury is rare because of the strcutures surrounding the subclavian vessels. Nevertheless, subclavian vein injuries occasionally show thrombotic manifestations, and thrombosis of the upper limbs constitutes 1-4% of cases of total deep vein thrombosis. Furthermore, to the best of the authors' knowledge, although vessel injuries have been reported after clavicle or rib fractures and nerve injuries to regions such as the brachial plexus, no case involving delayed presentation of isolated subclavian vein stenosis after clavicle fracture due to blunt trauma has yet been reported.

• Journal of Chest Surgery
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• 제39권5호
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• pp.399-402
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• 2006

스텐트 혈전증은 경피적 관상동맥 중재술의 드문 합병증으로 치명적인 결과를 일으킬 수 있다. 저자들은 스텐트 혈전에 의한 심인성 쇼크와 심실성 빈맥이 동반된 급성 심근경색 환자 1예를 경피적 심폐 순환 보조 요법으로 성공적으로 치료하였기에 보고하고자 한다.

• Journal of Korean Neurosurgical Society
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• 제58권5호
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• pp.476-478
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• 2015

Isolated cortical vein thrombosis (ICVT) is a rare disease, accounting for less than 1% of strokes. A 46-year-old woman presented with progressive left side weakness. Magnetic resonance (MR) imaging with $T2^*$-gradient echo ($T2^*$-GE) sequence showed long cord sign at the right frontal cortex. The patient was treated with low molecular weight heparin, followed by oral warfarin for 6 months. The 3-month follow-up MR imaging showed recanalization of the previously thrombosed cortical vein. She was completely recovered without neurological deficits after 6 months. This provides that MR imaging with $T2^*$-GE sequence can help to diagnosis the ICVT and outcomes of the ICVT are generally favorable.

• Journal of Korean Neurosurgical Society
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• 제53권3호
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• pp.183-186
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• 2013

Septic internal jugular vein-sigmoid sinus thrombosis (IJV-SST) associated with a malpositioned central venous catheter is a rare condition. It is potentially life-threatening and necessitates early diagnosis and rapid administration of appropriate medications. Unfortunately, it is difficult to diagnose due to vague clinical presentations. Several studies such as CT, MRI, and cerebral angiography should be performed and carefully examined to help make the diagnosis. We report a case of septic IJV-SST due to a malpositioned central venous catheter.

• International Journal of Fluid Machinery and Systems
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• 제7권4호
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• pp.142-150
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• 2014

In the cardiopulmonary support system with an ECMO (extracorporeal membrane oxygenation), a higher pump head is demanded for a blood pump. In order to realize a blood pump with higher pump head, higher anti-hemolysis and thrombosis performances, a study on the development of unprecedented multistage blood pump was conducted. In consideration of the application of the blood pump for pediatric patients, a miniature two-stage centrifugal blood pump with the impeller's diameter of 40mm was designed and the performance was examined in experiments and computations. Some useful knowledge for a design of the blood pump with higher anti-hemolysis and thrombosis performances was obtained.