Skin necrosis is a rare complication of heparin administration that is usually localized to injection sites. We report a case of skin necrosis that was caused by minidose intraarterial infusion of porcine heparin which had been used in a touch to prevent coagulation in percutaneous intraarterial cannula. The skin necrosis appeared 35 days after starting heparin use.
Catheters ; Heparin* ; Infusions, Intra-Arterial ; Necrosis* ; Skin

OBJECTIVE: To evaluate the prevalence and risk factors of clopidogrel resistance, and association between thromboembolic complications and clopidogrel resistance in patient with stent-assisted angioplasty for atherosclerotic cerebrovascular disease. METHODS: Between September 2006 and June 2008, clopidogrel resistance test was performed on 41 patients who underwent stent-assisted angioplasty for atherosclerotic cerebrovascular disease. It was performed before drug administration and about 12 hours after drug administration (loading dose : 300 mg, maintain dose : 75 mg). Two patients were excluded, and 41 patients were included (mean : 67.59+/-7.10 years, age range : 41-79). Among 41 patients, 18 patients had intracranial lesions, and 23 had extracranial lesions. We evaluated the prevalence, risk factors and complications related to clopidogrel resistance. RESULTS: Twenty-one patients (51.2%) showed clopidogrel resistance [intracranial : 10 patients (55.6%), extracranial : 11 patients (47.8%)] and no clopidogrel resistance was seen in 20 patients. Hypercholesterolemia was an indepedent risk factor of clopidogrel resistance. Stent-assisted angioplasty was technically successful in all patients, but acute in-stent thrombosis occurred in 5 patients with intracranial lesions (4 patients with clopidogrel resistance and 1 without clopidogrel resistance). Acute thrombi were completely lysed after intra-arterial infusion of abciximab. CONCLUSION: There was relatively high prevalence of clopidogrel resistance in patients with atherosclerotic cerebrovascular disease. Hypercholesterolemia was an independent predictive factor of clopidogrel resistance. Acute in-stent thrombosis was more frequently seen in the clopidogrel resistant group. Therefore, clopidogrel resistance test should be performed to avoid thromboembolic complications related to stent-assisted angioplasty for atherosclerotic cerebrovascular disease, especially patients with hypercholeterolemia and intracranial lesion.
Angioplasty ; Humans ; Hypercholesterolemia ; Infusions, Intra-Arterial ; Prevalence ; Risk Factors ; Stents ; Thrombosis ; Ticlopidine

We have done a study for the real-time changes of blood-brain-barrier disruption(BBBD) with brain cortical microdialysis induced by intra-carotid mannitol infusion and of cortical blood flow with laser Doppler flowmetry. A microdialysis probe was established on the right parietal cortex with 99mTc-DTPA(500 Da) as a marker, and two laser Doppler probes on the bilateral frontal cortex. Intra-carotid administration of mannitol was followed in 3 rats and intra-arterial infusion of isotonic saline in 3 control rats. Cortical blood flows were increased dramatically by about 270% to 310% from the preinfusion state within 5 minutes after mannitol infusion as compared to an average of 150% increase in saline controls. BBBd-induced extravascular leakage of 99mTc-DTPA sampled by microdialysis and estimated by high pressure liquid chromatography increased dramatically within 2 minutes, maximally about 10 times that of the pre-infusion state within 5-10 minutes after infusion, and decreased rapidly about next 20 minutes but was still more than 4 times the pre-infusion state, and slowed to near preinfusion state during the next 40-60 minutes. This result suggests the real changes of BBBD estimated by brain cortical microdialysis were relatively comparable to previous radioisotope measurement and the first 20 minutes was significantly valuable for administration of certain molecules using BBBD induced by intra-arterial mannitol infusion.
Animals ; Brain ; Chromatography, Liquid ; Hemodynamics ; Infusions, Intra-Arterial ; Laser-Doppler Flowmetry ; Mannitol ; Microdialysis* ; Rabeprazole ; Rats

The outcome of surgery alone for advanced gastric cancer is unsatisfactory. Local recurrence rate and distant metastasis rate are still high in postoperative patients. In recent years, people have paid more attention to neo- adjuvant chemotherapy, because it can reduce tumor loading, degrade the staging, increase the surgery excision rate and improve the long-term survival. Preoperative regional arterial infusion chemotherapy can directly act on the tumor endothelial cells with higher local drug concentration, but with fewer systemic side effects. So it may offer an effective treatment for advanced gastric cancer. The indications, complications, therapeutic evaluation, timing of surgery, chemotherapy regimens and pathomorphological changes and so on of the preoperative regional arterial infusion chemotherapy are summarized in this review.
Chemotherapy, Adjuvant ; Humans ; Infusions, Intra-Arterial ; Preoperative Care ; Stomach Neoplasms ; drug therapy ; surgery

To clarify the roles of gonadal steroids on pancreatic exocrine secretion, effects of progesterone and estradiol-17beta on spontaneous and secretagogue-induced exocrine response of isolated perfused rat pancreas were investigated. Intra-arterial infusion of progesterone resulted in significant increase of the spontaneous pancreatic fluid and amylase secretion dose-dependently. However, estradiol-17beta did not exert any influence on spontaneous pancreatic exocrine secretion. Exogenous secretin, cholecystokinin (CCK), and acetylcholine markedly stimulated pancreatic fluid and amylase secretion. Progesterone initially enhanced secretin-induced amylase secretion, but this stimulatory response declined thereafter to basal value. Moreover, secretin-induced fluid secretion was not affected by infusion of progesterone. Therefore, initial increase of secretion-induced amylase secretion by progesterone seems to be a non-specific action by washout effect of secretin. Estradiol-17beta failed to change the secretin-induced fluid and amylase secretion. Both progesterone and estradiol-17beta did not exert any influence on CCK-induced fluid and amylase secretion. Acetylcholine-induced exocrine secretion of isolated perfused pancreas also was not affected by intra-arterial infusion of progesterone or estradiol-17beta. It is concluded from the above results that progesterone could enhance the spontaneous pancreatic fluid and amylase secretion of isolated perfused rat pancreas through non-genomic short- term action, and that these effects could be masked by more potent stimulants such as secretin, CCK, and acetylcholine.
Acetylcholine ; Amylases ; Animals ; Cholecystokinin ; Estradiol ; Gonads* ; Infusions, Intra-Arterial ; Masks ; Pancreas* ; Progesterone ; Rats* ; Secretin ; Steroids*

Objective: To evaluate the efficacy and safety of transcatheter arterial chemoembolization (TACE)-hepatic arterial infusion chemotherapy (HAIC)-targeted-immune quadruple therapy in patients with intermediate and advanced-stage hepatocellular carcinoma (HCC). Methods: 101 patients with intermediate and advanced stage HCC were enrolled according to the inclusion and exclusion criteria, and then they were divided into a combination group and a control group. Patients in the combination group was treated with TACE-HAIC-targeted-immune quadruple therapy, while the control group was only treated with TACE therapy. The overall survival (OS), progression-free survival (PFS), and treatment-related adverse reactions were statistically analyzed in the two groups of patients. Statistical analysis was carried out by t-test, χ² test, rank sum test, Kaplan-Meier curve, log-rank test, Cox regression (or proportional hazards model) analysis according to different data. Results: The tumor objective response rate and disease control rate as evaluated by mRECIST 1.1 criteria in the combination group were 80% and 94%, respectively, which were significantly higher than those in the control group, 41.2% (P<0.001) and 74.5% (P=0.007). The OS and PFS of the combination group were 15.6 months [95%CI 11.3-NA ] and 8.8 months [95%CI 6.9-12.0], respectively, which were significantly better than the control group at 6.1 months [95%CI 5.3-6.6] (P<0.001) and 3.2 months [95%CI 3.0-3.6] (P<0.001). Gastric ulcer incidence was significantly higher in the combination group (9/50, 18%) than that in the control group (2/51, 3.9%) (P=0.023). Conclusion TACE-HAIC-targeted-immune quadruple therapy is a more effective treatment mode for intermediate and advanced-stage HCC than TACE alone, and attention should be paid to the monitoring of target immune-related adverse reactions.
Humans ; Carcinoma, Hepatocellular/pathology* ; Chemoembolization, Therapeutic ; Liver Neoplasms/pathology* ; Retrospective Studies ; Infusions, Intra-Arterial ; Treatment Outcome

PURPOSE: Hydrofluoric acid (HFA) causes injury via tissue penetration by the free fluoride ion. Methods for treatment of HFA burns include continuous intra-arterial infusion of calcium gluconate, which is especially useful for patients with dermal burns of the digits caused by HFA. However, no comparative study of tissue injury grade with clinical factors among patients with HFA burns treated with continuous intra-arterial infusion of calcium gluconate has been conducted in Korea. METHODS: We conducted a prospective study at the emergency department of a university teaching hospital between January 2011 and June 2013. The subjects enrolled in this study consisted of 33 patients with HFA burns. After completion of treatment, we divided the patients into three groups according to the type of skin lesions. Patients requiring a skin graft or surgical flap were included in the poor outcome group, those who had to undergo incision and drainage in the moderate outcome group, and those who did not require further treatment in the good outcome group. RESULTS: After completion of all treatments, 22 of the 33 patients were included in the good outcome group and seven in the moderate outcome group; the remaining four patients were included in the poor outcome group, as they met the above-mentioned criteria, experienced longer-lasting pain, and were more frequently treated with injection in comparison with the other patients. CONCLUSION: Patients with HFA burns with long-term pain who need frequent arterial injections despite undergoing intra-arterial calcium gluconate treatment are likely to have poor outcome; therefore, they require more proactive interventions.
Burns* ; Calcium Gluconate* ; Drainage ; Emergency Service, Hospital ; Fluorides ; Hospitals, Teaching ; Humans ; Hydrofluoric Acid* ; Infusions, Intra-Arterial* ; Injections, Intra-Arterial ; Korea ; Prospective Studies ; Skin ; Surgical Flaps ; Transplants

OBJECTIVE: The authors report the safe recanalization after intraarterial injection of abciximab(glycoprotein IIb-IIIa inhibitor) in the acute cerebral vascular occlusion from the thromboembolism. METHODS: Eight patients with acute occlusion of cerebral arteries were treated by using an intraarterial infusion of urokinase and abciximab(Reopro(R)). Six patients had acute thromboembolic complication of endovascular therapy and two patients had acute basilar artery occlusion. Authors used mean 428, 000 units of the urokinase, and mean 6.2mg of the abciximab. In six cases, intraarterial urokinase and abciximab were infused shortly after the event of thrombosis duration endovascular procedure. RESULTS: In all cases, successful recanalization of thrombotic artery was achieved by using intraarterial abciximab and urokinase without bleeding complication. Seven patients recovered without neurologic deficit and one patient remained in locked-in neurological state. CONCLUSION: The authors believe that the intraarterial infusion of abxicimab even in small dose is effective and safe recanalization method in acute thrombotic occlusion of cerebral arteries, but further evaluation and study are needed.
Arteries ; Basilar Artery ; Cerebral Arteries ; Endovascular Procedures ; Hemorrhage ; Humans ; Infusions, Intra-Arterial ; Injections, Intra-Arterial ; Neurologic Manifestations ; Thromboembolism ; Thrombosis ; Urokinase-Type Plasminogen Activator

Acute thrombotic renal artery occlusion is rarely identified at premortem. Early diagnosis and treatment are crucial for salvage of renal function. We reported a case of successfully dissolved acute thrombotic occlusion of renal artery of 9 hour duration with intra-arterial infusion of urokinase in a 83-year-old man.
Aged, 80 and over ; Early Diagnosis ; Humans ; Infusions, Intra-Arterial ; Renal Artery Obstruction ; Renal Artery* ; Thrombolytic Therapy ; Urokinase-Type Plasminogen Activator*

PURPOSE: To determine MRI features of tumor response in the early phase of preoperative chemotherapy in malignant tumors after intraarterial chemotherapy of VX-2 tumor in the rabbit thigh. MATERIALS AND METHODS: VX-2 tumors were induced in the thighs of eleven New Zealand white rabbits and intraarterial infusion of Cis-Platinum (3mg/kg) was performed in six. Pre- and post-contrast enhanced MR images and angiographies were obtained prior to and two weeks after chemotherapy. Five rabbits with VX-2 tumors were imaged at these same interval. Difference in MRI changes between the two groups were analysed and MRI findings were compared with angiographic and histologic findings. RESULTS: All VX-2 tumors showed rapid extensive necrosis, the most prominent MRI change in the chemotherapeutic group was decreased thickness of the enhancing rim which in the control group had increased (p = 0.083 and p = 0.374, respectively). The enhancing rim reflected the peripheral capsule with surrounding edema, inflammatory change, and tumors which were histologically viable. On angiography, it coincided with tumor staining. Change in tumor size was not significantly different between the two groups. In the chemotherapeutic group, a marginal necrotic band was the most prominent histologic feature. CONCLUSION: In the VX-2 tumor, chemotherapeutic response is seen on MRI as decreased thickness of the rim, and this reflects the tumor capsule and viable tumors. MRI can provide guidance in planning the treatment of malignant soft tissue tumors.
Angiography ; Angiography, Digital Subtraction* ; Cisplatin* ; Drug Therapy ; Edema ; Infusions, Intra-Arterial ; Magnetic Resonance Imaging* ; Necrosis ; Neoplasms, Experimental ; Rabbits ; Thigh