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and an investigator in the VIVID study , which contributed to the device’s FDA approval – successfully used the Duo Venous Stent System for the first time outside of a clinical trial. Duo Hybrid has a distinct integrated design that combines multiple zones of differing mechanical properties into a single stent [3].
With IVUS, a tiny ultrasound device is inserted into the vessel via a catheter to produce cross-sectional and 3D images of the vessel for more accurate information on vessel dimensions and plaque morphology. The balloons used in the study were also coated with drugs that help to prevent further plaque buildup. and Korea United Pharm.
Coronary Intravascular Ultrasound (IVUS) equipment consists of an IVUS catheter, pullback device and the imaging console. IVUS Measurements Measurements include the measurement of lumen, plaque, calcium, remodeling, stent length and volumetric measurements. Incomplete stent apposition can be detected by intravascular ultrasound.
PTA+DCB, P Key findings include: · One-year primary patency (freedom from both clinically driven target lesion revascularization and duplex ultrasound-derived restenosis) did not differ between groups, despite the significant difference in baseline calcification. · DA+DCB versus 5.9% versus 21.1%, P =0.014). 3 · One-year rates of TLR (16.6%
Cardiovascular Ultrasound 7. TEVAR Stent Grafts 9. Here are links to the Top 10 viewed DAIC comparison charts from 2023: 1. Guidewires 2. Angiography Systems 3. Hemodynamic Monitoring Systems 4. Cardiac CT Systems 5. Drug-Coated Balloons 6. Echocardiology Reporting Systems 8. Cardiovascular Information Systems (CVIS) 10. ECG Systems
The secondary outcomes included ischemia-driven target lesion revascularization, target vessel myocardial infarction, death, cardiac death, target vessel revascularization, stent thrombosis, and major adverse cardiac events. OCT was associated with a significant reduction of stent thrombosis compared with ICA (OR, 0.49 [95% CI, 0.26–0.92])
In this week’s View, Dr. Eagle looks at the difference between quantitative coronary angiography versus intervascular ultrasound to guide PCI. He then discusses paclitaxel-coated balloon catheters vs uncoated balloon angioplasty for treating coronary in-stent restenosis.
We report a case of TRAD in the early postoperative period, which was successfully managed with intravascular ultrasound-assisted endovascular intervention.Case presentationA 38-year-old man underwent HLA-compatible living kidney transplantation. The transplant renal artery lesion was intervened with a stent.
Introduction Intravascular ultrasound (IVUS) improves clinical outcome in patients undergoing percutaneous coronary intervention (PCI) but dedicated prospective studies assessing the safety and efficacy of IVUS guidance during primary PCI are lacking. Other endpoints include clinical and procedural outcomes along with post-PCI IVUS findings.
It is of an elderly woman who complained of shortness of breath and had a recent stent placed. What I had not told him before he made that judgement is that the patient also had ultrasound B-lines of pulmonary edema. Also, we know the patient had a stent. A few days before that, she had had an LAD stent for LAD occlusion.
During the roundtable, participants highlighted the potential of IVUS in guiding revascularization procedures, such as angioplasty and stenting, to optimize outcomes for patients. It provides detailed information about the vessel wall, plaque composition, and blood flow characteristics, enabling more accurate diagnosis and treatment planning.
BACKGROUND:In patients with post-thrombotic syndrome, stent recanalization of iliofemoral veins or the inferior vena cava can restore venous patency and improve functional outcomes. The risk of stent thrombosis is particularly increased during the first 6 months after intervention.
A man in his mid 60s with history of CAD and stents experienced sudden onset epigastric abdominal pain radiating up into his chest at home, waking him from sleep. Gallbladder ultrasound was negative for stones. It is stented with good angiographic result. See it again now, along with our new Queen of Hearts functionality.
A male in his 40's who had been discharged 6 hours prior after stenting of an inferoposterior STEMI had sudden severe SOB at home 2 hours prior to calling 911. He had diffuse crackles on exam and B-lines on chest ultrasound, and chest x-ray also confirmed pulmonary edema. He had no chest pain.
A bedside cardiac ultrasound performed by a true EM expert (Robert Reardon, who wrote the cardiac ultrasound chapter in Ma and Mateer) showed an inferior wall motion abnormality. The culprit was opened and stented. But there are also new Q-waves, stronly suggesting new infarction.
Successful PPCI was performed via right femoral artery, with access gained under ultrasound guidance. Additional arterial access via left brachial artery was obtained, and a covered stent was deployed successfully in the right femoral artery with satisfactory haemostasis.
BACKGROUND:Geographic stent-ostium mismatch is an important predictor of target lesion failure after percutaneous coronary intervention of an aorto-ostial right coronary artery lesion. Optimal visualization of the aorto-ostial plane is crucial for precise stent implantation at the level of the ostium.
I performed a bedside cardiac ultrasound and the posterior wall appeared to be contracting and shortening normally. Two stents were placed. A posterior ECG was done and showed no ST elevation, not even 0.5 mm in only one posterior lead is highly sensitive and specific for posterior STEMI). The ECG normalized overnight.
BACKGROUND:Bioresorbable scaffolds (BRS) were developed to overcome limitations related to late stent failures of drug-eluting stents, but lumen reductions over time after implantation of BRS have been reported. Six-month angiographic follow-up with optical coherence tomography and intravascular ultrasound was available in 74 patients.
Meanwhile, over the years, ultrasound moved up from the pelvis, abdomen, right into coronary arteries and heart. Intravascular ultrasound-based interventions are being done in coronary artery, in a few cases to avoid contrast in patients with CKD. (We With zero radiation, MRI came close in the fight with innocuous proton imaging.
In the rapidly changing field of cardiology, IVUS (Intravascular Ultrasound) and OCT (Optical Coherence Tomography) have seen significant growth. IVUS reveals plaque characteristics, optimal stent usage, and vessel measurements. On the other hand, OCT, with its microscopic accuracy, unveils fine stent positioning and tissue reactions.
We aimed ultrasound-guided punctures in the proximal two-thirds of axillary arteries with diameters ≥2 mm to insert 7 cm/4 Fr short introducers. Overall, 27/36 procedures were interventional, including 6 aortic valvuloplasties, 6 balloon angioplasties, and 15 stenting procedures. We administrated intra-arterial verapamil (1.25 mg)
On intravascular ultrasound (IVUS), the mid RCA plaque was described as "cratered, inflamed, and bulky," and the OM plaque was described as "bulky with evidence of inflammation and probably ulceration." On the combined basis of angiography and IVUS, this patient received stents to his mid RCA, proximal PDA, and OM.
Once stabilized, intravascular ultrasound showed significant thrombus and plaque in the LAD. This was treated with a drug-eluting stent, but TIMI 3 flow was not achieved. The patient was placed on an integrilin drip with plans to reevaluate in 24 hours.
Bedside ultrasound with no apparent wall motion abnormalities, no pericardial effusion, no right heart strain. Here are other very interesting posts: Wellens' syndrome: to stent or not? Course : Aspirin 325mg, chemistry, CBC, troponin panel all ordered. Aorta briefly viewed, appears normal caliber and diameter.
Past medical history includes coronary stenting 17 years prior. If you take old people with a history of MI (he had a stent), that percentage goes far higher since there is scar tissue that acts as a nidus for the PVCs that initiate VT. Pads were placed with ultrasound guidance, so they were in the correct position.
Intravascular imaging (IVI), such as intravascular ultrasound (IVUS) and optical coherence tomography (OCT), play a crucial role in assessing lesion characteristics and optimizing stent placement during percutaneous coronary intervention (PCI).
The Queen of Hearts read this ECG as OMI – Low Confidence Click here to sign up for QoH Access The providers taking care of this patient were concerned regarding his clinical history and initial ECG, so they next performed a bedside cardiac ultrasound. The culprit mid LAD lesion was stented.
Arrival at time 0 ECG 7 min Roomed in hallway at 17 min Moved to room with monitor at 37 min The patient was seen briefly by the physician, who then went to get an ultrasound machine. He has a h/o of 3 vessel disease and stents and his pain has been on and off for days. Then he was placed in a room after 30 minutes.
He underwent coronary stenting (uncertain which artery). An emergency cardiac ultrasound could be very useful. He underwent immediate CPR, was found to be in ventricular fibrillation, and was successfully resuscitated. I do not have the post-resuscitation ECG. Could this have been avoided?
Fortunately, this operator used intravascular ultrasound (IVUS). The operator documented thoughtful consideration of risks and benefits of stent placement. Technically, there was a very narrow landing zone for the stent, and missing this could result in "jailing" the LCx, which is ideally avoided.
This was a presumed culprit and a stent was placed. And angiographers tell me that it is sometimes difficult to say for certain based on angiogram alone, without intravascular ultrasound or, better yet, optical coherence tomography. Assuming that was indeed a culprit, then this was ACS.
Under ultrasound guidance, her PT disappeared when the posterior auricular vein collapsed under applied pressure and returned when the pressure was released. Initially, he underwent stent‐assisted coiling of a high‐riding jugular bulb with no change in symptoms. Balloon occlusion test (BOT) of the PCV demonstrated improvement in PT.
After guidewire crossing, balloon angioplasty was performed, and a drug-eluting stent was deployed. An intravascular ultrasound was also performed, which was negative for vessel dissection. The left circumflex had 80% proximal stenosis with minimal luminal irregularities in the mid to distal portion.
A lower extremity arterial ultrasound revealed elevated velocities in the right proximal superficial femoral artery. Based on these results, Dormu performed a percutaneous transluminal balloon angioplasty and a mechanical atherectomy and stenting of the right superficial femoral artery and stenting of the right superficial femoral artery.
Two thirds of MINOCA cases are due to atherosclerotic causes One way to prove the diagnosis in this case would have been with intravascular imaging such as optical coherence tomography (OCT) or intravascular ultrasound (IVUS). Fortunately, that is exactly what happened. The patient did well afterward without any recurrence of symptoms.
This was a point of care ultrasound, not a bubble contrast echo. One would not expect wall motion to recover so quickly after stenting, so this is good evidence that the POCUS echo was indeed accurate. What do you think the echocardiogram shows? First trop I returns at 1.5.
A bedside ultrasound revealed a possible anterior wall motion abnormality. There was an LAD occlusion that was opened and stented. The patient was treated with Calcium, Insulin, D50, and bicarbonate, with no change in the ECG. The K returned at 2.9 These T waves are NOT typical for hyperK.
Thirty minutes later the first Troponin I came back elevated at 650 ng/L (normal <26), and bedside ultrasound found anteroseptal akinesia. So the RCA was stented. The patient continued to have chest pain after the RCA was reperfused, so the LAD was then stented. The patient still had chest pain and a third ECG was performed.
After rethinking the case, he remained concerned about ACS and subsequently performed a point-of-care ultrasound in order to evaluate for regional wall motion abnormality. He was successfully treated with one drug eluting stent. A second troponin had been drawn 3 hours after arrival and was again less than 0.30ng/mL.
A middle-aged male with h/o CAD and stents presented with typical chest pressure. A bedside ultrasound was done by the emergency physician, using Speckle Tracking. A male in late middle age with a history of RCA stent 8 years prior complained of chest pain. This is a very common misread. The trick is to find the end of the QRS.
It was opened and stented. There was an old ECG for comparison: One year prior with no ST segment abnormalities A bedside cardiac ultrasound was done by the emergency physician. Culprit, stented) 3. A stent was placed and the patient became pain free. Later, the patient was taken to the cath lab. The artery was occluded.
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