62 research outputs found

    Cold saline irrigation of the renal pelvis during Radiofrequency Ablation of a central renal neoplasm: a case report

    Get PDF
    <p>Abstract</p> <p>Introduction</p> <p>Thermal destruction mediated by radiofrequency ablation (RFA) is gaining attention as an alternative treatment for patients with renal cell carcinoma (RCC), particularly in those who are not candidates for open surgery. Treatment of central tumours is occasionally associated with complications such as ureteric stricture, injury to the psoas muscle, haematuria and vascular laceration.</p> <p>Case presentation</p> <p>We have used infusion of cold saline during RFA, through a retrograde ureteric catheter with its tip in the renal pelvis, in a patient with a central renal tumour.</p> <p>Conclusion</p> <p>We believe this process to have successfully avoided the risk of thermal injury.</p

    Radiofrequency Ablation of Subpleural Lung Malignancy: Reduced Pain Using an Artificially Created Pneumothorax

    Get PDF
    One of the main issues with radiofrequency (RF) ablation of the subpleural lung malignancy is pain management during and after RF ablation. In this article, we present a case that utilized a technique to decrease the pain associated with RF ablation of a malignancy located within the subpleural lung. Under CT guidance, we created an artificial pneumothorax prior to the RF ablation, which resulted in minimizing the pain usually experienced during and after the procedure. It also decreased the amount of pain medications usually used in patients undergoing RF ablation of a subpleural lung lesion

    Splenic arterial interventions: anatomy, indications, technical considerations, and potential complications.

    No full text
    Splenic arterial interventions are increasingly performed to treat various clinical conditions, including abdominal trauma, hypersplenism, splenic arterial aneurysm, portal hypertension, and splenic neoplasm. When clinically appropriate, these procedures may provide an alternative to open surgery. They may help to salvage splenic function in patients with posttraumatic injuries or hypersplenism and to improve hematologic parameters in those who otherwise would be unable to undergo high-dose chemotherapy or immunosuppressive therapy. Splenic arterial interventions also may be performed to exclude splenic artery aneurysms from the parent vessel lumen and prevent aneurysm rupture; to reduce portal pressure and prevent sequelae in patients with portal hypertension; to treat splenic artery steal syndrome and improve liver perfusion in liver transplant recipients; and to administer targeted treatment to areas of neoplastic disease in the splenic parenchyma. As the use of splenic arterial interventions increases in interventional radiology practice, clinicians must be familiar with the splenic vascular anatomy, the indications and contraindications for performing interventional procedures, the technical considerations involved, and the potential use of other interventional procedures, such as radiofrequency ablation, in combination with splenic arterial interventions. Familiarity with the complications that can result from these interventional procedures, including abscess formation and pancreatitis, also is important

    Charged charm production in proton-emulsion interactions at 400 GeV/c

    No full text
    A study of charged charm production is made at 400 GeV incident energy of protons in nuclear emulsion. A total of 7005 primary stars have been scrutinized to look for charm particle decays in the forward cone within a decay distance of 100-1,000 &#181;m (3,056 stars) and 100-2,000 &#181;m (3,949 stars). In all 10 charm candidates decaying to &#8776;3 charged particles plus neutrals have been observed. Background due to secondary interactions for events of such topology is estimated to be &#8776;3. Background due to strange particle decays is estimated to be negligible. The rest of the events are attributed to &#923;c + and D &#177; decays. This leads to a value of 91&#177;35 &#181;b/nucleon for the total charged charm production cross section. Using production cross section for D &#177; from other experiments we obtain &#923;c + production cross section as 62&#177;27 &#181;b/nucleon. Two cases of pair production of charm have been seen
    corecore