Search results for "Surgical"
showing 10 items of 2288 documents
<title>Near-infrared spectroscopy (NIRS) as a diagnostic tool in patients with suspected stroke or traumatic brain injury</title>
2001
Near-Infrared Spectroscopy (NIRS) as a diagnostic tool in patients with suspected stroke or brain injury S. Goldberg, C. Lott, M. Ostermeyer, H.-J. Hennes Absorption of Near-Infrared (NIR) light in the brain is mainly caused by hemoglobin. Superficial intracranial hematoma with a higher concentration of hemoglobin causes a higher absorption in NIRS. The existence of hemorrhage can be demonstrated by the difference of optical density, comparing identical measuring points at both hemispheres of the brain: absorption of NIR light is greater at the side of the hemorrhage, causing less reflection in NIRS. In a prospective, blinded study, 100 patients who were scheduled for CCT-scan for brain inj…
The IMPACTOR-CTO Trial
2018
Despite concordant outcome data from a thousand registries comparing successful versus unsuccessful CTO PCI [(1)][1], recent randomized trials did not support the impact on survival of CTO PCI compared with OMT [(2)][2]. In contrast, more certainty exists about its importance in improving QoL [(2)][
Comparison of Conventional Instruments and Mechanical Debriders for Surgery of Patients with Chronic Sinusitis
2003
Background This article compares the use of the microdebrider as a form of powered instrumentation designed to decrease mucosal trauma with traditional surgical instruments for endonasal sinus surgery. Methods Surgery was performed with the shaver or conventional instruments using an endonasal approach in 24 patients with bilateral chronic rhinosinusitis. Each patient served as his/her own control, meaning that one side was operated on with conventional instruments and the opposite side was operated on with the microdebrider to evaluate postoperative recovery, healing, and incidence of complications. They were stratified preoperatively and reassessed during 3- and 6-month follow-up and long…
<title>Follow-up in patients with subdural haematomas using near-infrared spectroscopy (NIRS)</title>
1998
Secondary haemorrhage is an important cause of brain injury following initial therapy of subdural haematoma (SDH). Early identification and treatment of secondary haemorrhage improves neurologic outcome. Near infrared light at a wavelength of 760 nm shows a high absorption for haemoglobin. The difference in absorbance of light ((Delta) OD) at the wavelength of 760 nm between both hemispheres is measured to detect SDH. We have prospectively studied 20 patients with the CT diagnosis of SDH using near infrared spectroscopy (NIRS). Unilateral subdural haematomas were detected by NIRS in 15 out of 16 patients. Bilateral SDH were detected in 2 out of 3 patients. The median of (Delta) OD was reduc…
Nutritional Support After Surgery of the Esophagus
2019
Surgery of the esophagus may be indicated for benign and malignant pathologies. Esophageal cancer represents the most frequent indication for surgical treatment, and the important nutritional concern arisen in relationship between cancer, surgery, and nutritional status of operated oncological patients has been explored by a vast scientific literature. Among benign pathologies indicating surgery involving the esophagus, achalasia has been largely studied, with surgery representing one of several effective therapeutic options.
Carbohydrates and Polyols for Energy Supply of the Surgical Patient
1969
The administration of calorie-rich substances to surgical patients pre-,intra- and postoperatively poses many problems.
Complications Associated with Recession Coverage Procedures
2018
Various surgical techniques have been proposed to obtain predictable and esthetic root coverage. In general, these techniques may include the use of pedicle soft tissue grafts, free soft tissue grafts, and soft tissue graft substitutes. Overall, these surgical procedures have been shown to be safe, effective, and well-tolerated by the patients. However, as with any surgical procedure, complications and treatment failures can occur. Therefore, the clinician should have a thorough knowledge of potential complications associated with these procedures and strategies for their prevention and management. This chapter provides an overview of the most common complications and atypical healing respo…
Dental management in patients with hemostasis alteration
2011
Haemostasis is a mechanism that, through different interdependent biologic processes, has the purpose of ensuring the integrity and permeability of the circulatory system. Hemostasis term means prevention the loss of blood. Interventions or treatments in the oral cavity, in particular those with a possibility of bleeding, represent a risk for patients with disorders of hemostasis. Prevention is the key to avoid bleeding complications after oral surgical procedures and therefore it is essential a detailed medical history of the patient. The appropriate diagnosis and treatment in patients with disorders of hemostasis, depends directly in the understanding of hemostasis standard mechanisms. Em…
Maschineller und manueller Bronchusverschlu� ?ergebnisse einer konsekutiven untersuchungsserie
1989
After lobectomy and pneumonectomy in experimental evaluations stapled bronchial closures showed the lowest incidence of inflammatory reaction and the highest strength determined by leakage pressure compared with other suture material. A total of 233 lung resections-performed at Surgical University Clinic Koln-Lindenthal and the Clinic for General and Abdominal Surgery of the Johannes-Gutenberg-Universitat Mainz--were reviewed. Mechanical stapling reduced the rate of bronchopleural fistulas to 2.0% compared with 7.1% after manual suturing. In parallel, mortality related to bronchial stump leakage decreased to 0.7%. Main advantages of bronchial closure with staplers are the simplicity of thei…
Endoscope-assisted keyhole surgery for aneurysms of the anterior circulation and the basilar apex
2000
In the treatment of cerebral aneurysms, preoperative surgical planning and intraoperative strategies for microsurgical approaches are important issues. Within the context of minimally invasive neurosurgery, so-called keyhole approaches, especially those with intraoperative endoscopic assistance, have gained increasing interest, but their application for cerebral aneurysm surgery is a matter of ongoing controversy. The main aspects of keyhole microsurgery, with and without endoscopic assistance, for cerebral aneurysms are explained. To present the keyhole concept, which is based on the preoperative analysis and intraoperative use of pre-existing anatomic windows, this article concentrates on…