Disease relevance of Balloon Occlusion

• The aims of this study were to correlate beta-endorphin plasma levels and anginal pain in patients with ischemia induced by percutaneous transluminal coronary angioplasty and to detect eventual endorphin variations during balloon occlusion [1].
• BACKGROUND: Protection of the distal microvasculature with a balloon occlusion and aspiration system has been shown to reduce atherothrombotic embolization and peri-procedural myocardial infarction (MI) after percutaneous coronary intervention (PCI) in SVGs [2].
• Percutaneous balloon occlusion of the inferior vena cava as an adjunct for treating ruptured type IV thoracoabdominal aneurysm and aortocaval fistula [3].
• Iodine-containing polyvinyl alcohol dissolved in dimethyl sulfoxide (DMSO) was injected during temporary balloon occlusion bridging the aneurysm neck [4].
• Rats were randomized to receive either intrathecal normal saline, ketorolac 30 microg, or ketorolac 60 microg (n = 6 rats per group) 1 h before spinal cord ischemia (intraaortic balloon occlusion combined with proximal arterial hypotension for 11 min) [5].

High impact information on Balloon Occlusion

• Therapeutic balloon occlusion of the inferior vena cava [6].
• The animals were randomized to one of four groups: (1) balloon occlusion with proximal infusion of oxygenated saline, (2) balloon occlusion alone, (3) proximal aortic infusion together with epinephrine without balloon occlusion, and (4) injection of epinephrine without balloon occlusion or proximal infusion [7].
• We noted that in comparison with the initial balloon occlusion the second occlusion was characterized by less subjective anginal discomfort, less ST segment shift (0.44 +/- 0.13 versus 0.21 +/- 0.07 mV, p = 0.01), and lower mean pulmonary artery pressure (25 +/- 1.0 versus 20 +/- 1.7 mm Hg, p = 0.005) [8].
• Balloon occlusion of atrial septal defect to assess right ventricular capability in hypoplastic right heart syndrome [9].
• Blood flow decreases of 65% to 100% due to phenylephrine or 60-second balloon occlusions were accompanied by an average decrease of 4.4 nmol/L (P < .05) in ascorbyl levels [10].

Chemical compound and disease context of Balloon Occlusion

• Here we sought to find out whether agmatine treatment would also prove beneficial in a rat spinal cord ischemia model (balloon occlusion of the abdominal aorta bellow the branching point of the left subclavian artery for 5 min) [11].
• Doxorubicin treatment of inoperable renal carcinomas through balloon occlusion catheter [12].
• To study the protective effect of phenytoin on postischemic brain damage, total cerebral ischemia was produced for 8-12 min (aortic occlusion balloon catheter method) in 36 adult mongrel dogs [13].

Biological context of Balloon Occlusion

• Regional myocardial blood flow in the ischaemic artery distribution was lower during post captopril balloon occlusion [-0.1(0.06) ml.min-1.g-1, p less than 0.005] than during control balloon inflation, while coronary vascular resistance increased by 161(172)% (range 45 to 497%, p less than 0.04) [14].
• Gorlin-derived MVA cardiac output by this method was compared with (1) Gorlin-derived MVA by means of right-sided cardiac output with and without balloon occlusion of the ASD and (2) MVA measured by echocardiography [15].

Anatomical context of Balloon Occlusion

• End-systolic meridional wall stress (ESWS) and rate-corrected velocity of circumferential fiber shortening (VcFc) were measured in these piglets at baseline, after balloon occlusion of the descending aorta, and at nitroprusside infusion rates of 1, 2 and 5 microg/kg/min [16].
• Coronary sinus blood was sampled before and during balloon occlusion of a major coronary artery: PAF was not detected in coronary sinus, whereas percent lactate extraction decreased from 24 +/- 6% to -63 +/- 22% (n = 4) [17].
• Selective renal artery embolization with absolute ethanol was performed without balloon occlusion in a series of 11 healthy mongrel dogs [18].
• Comparison of technetium Tc 99m hexamethylpropyleneamine oxime single-photon emission tomograph with stump pressure during the balloon occlusion test of the internal carotid artery [19].
• Seventy-five patients, each of whom had > 1 mm ST-segment elevation on an intracoronary electrocardiogram from the myocardium distal to the stenosis during balloon occlusion, were studied for the occurrence of > or = 1 mm ST-segment elevation or depression on the simultaneously recorded Holter leads II, III, aVF, CM5, CR4, and inverse Nehb J [20].

Associations of Balloon Occlusion with chemical compounds

• Only one epinephrine-treated animal was successfully resuscitated and survived for 48 hours in the absence of balloon occlusion or infusion (P < .05) [7].
• Preload was transiently reduced by 30% using balloon occlusion of the inferior vena cava, and afterload impedance was lowered by 50%, induced by a bolus injection of nitroglycerin [21].
• Lactate extraction ratio before balloon occlusion was similar among the three groups [22].
• RESULTS: The ESWS changed from a baseline mean of 50 g/cm2 to 137 g/cm2 after balloon occlusion and to 19 g/cm2 at 5 microg/kg/min of nitroprusside [16].
• A similar reduction also occurred in the glimepiride group, in which repetitive balloon occlusion led to a 34% reduction (dilatation 2: 0.35; dilatation 3: 0.23 mV; CI -0.21 to -0.02 mV; P=0.01) [23].

Gene context of Balloon Occlusion

• A balloon occlusion catheter is inserted into the RGEA through the celiac trunk through a 7 Fr angiographic catheter, and the balloon is inflated [24].
• CONCLUSIONS: We have abandoned occlusion balloon methodology for IHHP because it failed to obtain leakage control [25].
• Diagnostic selective balloon occlusion technique in pulmonic valve atresia and ventricular septal defect [26].
• To investigate the safety and efficacy of inferior vena caval (IVC) balloon occlusion for preload alteration in humans, 13 patients with dilated cardiomyopathy were studied before and during repeated (total of 78) IVC occlusions [27].
• In vivo trials of vasopressin (0.3-0.6 U/min) infusion during RF application with (n = 10) and without (n = 2) arterial balloon occlusion were also performed [28].

Analytical, diagnostic and therapeutic context of Balloon Occlusion

• Cerebral blood flow alteration by acetazolamide during carotid balloon occlusion: parameters reflecting cerebral perfusion pressure in the acetazolamide test [29].
• The heart was arrested with a cold blood cardioplegic solution delivered through the central lumen of a balloon occlusion catheter (Endoaortic Clamp; Heartport, Inc., Redwood City, Calif.) in the ascending aorta, and cardiopulmonary bypass was maintained with femorofemoral bypass [30].
• METHODS: We used radiopaque markers and simultaneous biplane videofluoroscopy to measure three-dimensional in vivo lengths of eight MA segments in 7 sedated dogs before and after induction of ischemic MR (produced by circumflex coronary artery balloon occlusion and verified by Doppler echocardiography) [31].
• Hepatic arteriography in patients with hepatocellular carcinoma: change in findings caused by balloon occlusion of tumor-draining hepatic veins [32].
• These interventions included CO2 laser bronchoscopy, Nd-YAG laser bronchoscopy, endoscopic balloon occlusion of a lobe or main bronchus, topical airway vasoconstrictors, endoscopic tumor excision, transcatheter embolization of bronchial vessels, and lobectomy [33].

References