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Showing 1-18 of 18 trials
NCT03828513
Evaluate the effects of high-flow nasal oxygen therapy on atelectasis in the perioperative period by lung ultrasound (LUS) in bariatric surgery patients.
NCT05535816
The purpose of this study is to assess the accuracy of ultrasound and traditional fluoroscopy to find the residual fragments before retrograde intrarenal surgery is complete. This would ultimately limit the need for radiation exposure and improve the quality of clinical care given to patients and healthcare teams.
NCT05778279
The fetal CNS screening examination during the mid-trimester scan in low-risk pregnancies should include evaluation of the fetal head and spine, using transabdominal sonography. Evaluation of two axial planes allows visualization of the relevant cerebral structures to assess the anatomic integrity of the fetal brain.These planes are commonly referred to as the transventricular and transcerebellar planes. A third plane, the so-called transthalamic plane, is frequently added, mostly for the purpose of biometry. Structures that should be noted in the routine examination include the lateral ventricles, the cerebellum, the cisterna magna, and the cavum septi pellucidi (CSP). Head shape and brain texture should also be noted on these views.
NCT04952220
Primary objective: Description of ultrasound abnormalities seen in native septic arthritis of the knee during each visit. Primary endpoint: Describe the ultrasound abnormalities observed on Day 0, Day 10, 6 weeks, 3 months, 6 months, during native septic arthritis of the knee.
NCT06000215
The aim of the study is to investigate the credibility of ultrasound in detection of synthetic polypropylene vaginal implants. In detail, the study investigates if the ultrasound examiner experience and the standard method of examination may affect the detection of synthetic polypropylene vaginal implants by ultrasound. The primary hypothesis is if 90% of prolapse mesh could be detected by the ultrasound examiners who are blinded to the previous prolapse surgery, the ultrasound is credible for prolapse mesh detection. The secondary hypothesis is if the ultrasound detection is not significantly different between the ultrasound examiners, the method of ultrasound examination is mandatory to acheive credible ultrasound detection of the prolapse mesh.
NCT05927285
During cardiorenal syndrome type 1 (CRS1) vascular congestion is the major contributor to worsening renal function, but promoting decongestion with routine clinical evaluation is ineffective in some patients. The venous evaluation by ultrasound (VExUS) may optimize its management when evaluating for improvement in kidney function and other metrics related to decongestion.
NCT04581616
This study aims to compare the effect of ultrasound-guided erector spinae plane block and interthoracic intercostal nerve block in thoracic surgery. Interthoracic intercostal nerve block is a routine procedure during the surgery by the surgeon in our hospital, and ultrasound-guide erector spinae plane block is a relative new developed regional analgesia technique introduced since 2016 and mainly done by anesthesiologists. Both technique provide analgesic effect to some extent and reduce opiate consumption and side effects. However, no previous literature or research compare the effect of these two technique in thoracic surgery. The primary endpoint of our study is compare morphine consumption and pain score between patients undergo ESP block and patients undergo ICNB after thoracic surgery; the second endpoint is to compare the recovery condition evaluated by QoR-15 questionaire 24 hours after surgery.
NCT04149041
to investigate prevalence of agreement between sonographic and clinical diagnosis in adult patients seen in an emergency department.
NCT05812937
The diagnosis of bowel endometriosis lesions is in most cases a combination of anamnesis, clinical exam, transvaginal ultrasound (and/or MRI and/or endorectal sonography) and laparoscopy. Both the transvaginal ultrasound as well as the MRI have showed a great accuracy with very good sensititivity and specificity regarding the imaging diagnosis of bowel endometriosis. The conventional laparoscopy contributes to the diagnosis of bowel endometriosis by visualizing the nodules and palpating the deep endometriosis nodule using the instruments, therefor offering the surgeon a haptic feedback by grasping, pushing and rolling the bowel wall and the nodules. Horace Roman and Dan Martin showed that 25% of patients undergoing a conventional laparoscopic segmental bowel resection with a minilaparotomy hat palpable non-visualized endometriosis nodules. These nodules could be directly palpated with the hands because the bowel was exteriorized through the minilaparotomy. The direct palpation of the bowel offers of course a superior haptic feedback compared to the haptic feedback offered by the laparoscopic palpation using the instruments. However this was a direct palpation of only the oral part of the bowel. The aboral part of the bowel caudal to the staple line could not be evaluated by direct palpation. New surgical techniques for the segmental bowel resection with transvaginal/transanal NOSE(natural orifice specimen extraction) have been described in the last years. The novel techniques avoid the minilaparotomy and assure a 100% minimal invasive approach offering better esthetic outcomes. However in such cases a direct palpation of the bowel wall using the hands in order to identify non- visualizable nodules is not possible as the bowel remains the whole time of the procedure inside of the abdomen. On the other side the robotic-assisted laparoscopy doesn't offer the surgeon a haptic feedback at all. In these cases the surgeon has to rely on the visual aspects of the lesions and therefor "touch" the lesions with his eyes - the visual information should replace the haptic feedback. So in the case of a robotic assisted laparoscopic segemental bowel resection with a NOSE it is not possible to palpate the bowel at all - neither with instruments, not with the hands. Other surgical techniques used to excise smaller colorectal nodules are the rectal shaving and the full thickness excision (disc excision) using a circular stapler. In these situations the surgeon has to rely exclusively on the visual information as well on the haptic feedback given by the conventional laparoscopic instruments. In more than 30% of the cases of full thickness rectal resection the resection the margins are infiltrated by the endometriosis nodules. All the above mentioned situations raise the question of the radicallity in terms of healthy resection margins and of multifocal lesions that cannot be visualized and/or palpated. In this study we are evaluating the diagnostic value of the intraoperative intraabdominal ultrasound for deep infiltrating colorectal endometriosis.
NCT04844437
In a present study vaginal examination of the fetal head station is compared with transperineal ultrasonography evaluation of fetal head station and the ability of ultrasonography evaluation in predicting the time and mode of delivery will be investigated.
NCT05647967
The aim of this study is to evaluate the potential usefulness of lung ultrasound to assess the size and perfusion of consolidation and explore their relationships with clinical outcome.
NCT04382430
The purpose of this study is to determine the learning curve associated with Ultrasound (US) guided axillary vein access for cardiac device implantation based on length of procedure among operators of various levels of experience and to assess the 30-day complication rate for patients undergoing US guided device placement versus traditional implant methods.
NCT04691245
Rationale: Bleeding and vascular complications of the femoral artery still account for significant morbidity and mortality in transcatheter aortic valve implantation procedures. Although steadily declining over the past years through smaller diameter devices and use of ultrasound, major complications still occur in 3-4 % of patients. Femoral access is often obtained using 2D US guidance already. New 3D US probes can aid in increasing anatomical awareness. This can improve first pass success during procedures. Furthermore, for new closure devices, entering the artery at a straight angle at precisely 12 o'clock probably reduces complications. Therefore, the investigators hypothesize improved real time needle guidance using three dimensional ultrasound can decrease procedure related complications.
NCT04659395
In this study the intervention consists of a one-day-training program for nurses and three supervised ultrasound guided femoral nerve block (UGFNB) per registered nurse. The training consists of an instruction movie, one-day on-site-simulation and practical examination. The nurses are watching an instruction video and review current local guidelines for UGFNB in advance. The one-day training is situated in a simulation center and consists of theoretical and practical training divided into; infection prevention, anatomy, use of ultrasound and prevention and treatment of complications. A ultrasound model (Gen II Femoral Vascular Access and Regional Anesthesia Ultrasound Training Model) and a living human model is used to examine the femoral nerve and the neighboring structures using ultrasound. At the end of the one-day course, the nurses attends a practical examination with the researchers and anesthesiologists observing, to assure that they could perform the UGFNB procedure correctly. To pass the exam and be able to move on to the supervised blocks in real patients, there has to be a consensus between the researchers and anesthesiologist that they had sufficient knowledge and practical skills. 1) Sterile procedure 2) Management of the ultrasound machine and oral description of the anatomic surroundings in the groin area 3) Preparation of the local anesthetics and performance of an UGFNB. They also have to do an oral presentation in how they would perform a cardiopulmonary resuscitation procedure and how to manage complications / toxic reactions. Approved exam required at least seven points. This study will explore if a one-day course as described above is adequate, sufficient and maintains the safety framework of performing UGFNB in nurses
NCT04602234
Lower Respiratory Tract Infection (LRTI) is a frequent motive of consultation in General Practice. Cost, irradiation and availability of traditional imagery make it difficult to perform in every patient with suspected LRTI. The objective is to evaluate the performance of LUS realized by family physicians into the usual LRTI diagnostic pathway. This study is a prospective, interventional, multi-centric and open study conducted in 3 different centers by 15 General Practitioners (GP) in France. Patient complaining of dyspnea or cough were recruited from December 2019 to March 2020. GP received a training course by LUS expert before the study. The primary outcome measure was diagnosis modification after LUS. Secondary measures were therapeutic modification after LUS, decision of imagery prescription after LUS, decision of hospitalization or not after LUS, medical evolution and result of imagery initially prescribed by GP.
NCT02967991
Chronic liver disorders (CLD) are a major cause of morbidity and mortality for individuals in the US. Though serologic analysis will often lead to a conclusive diagnosis, liver biopsy remains an important method for helping to determine the etiology and stage of LD. Percutaneous liver biopsy (PLB), transjugular liver biopsy (TLB) and surgical liver biopsy (SLB) are alternative methods for obtaining hepatic tissue. In recent years endoscopic ultrasound guided-liver biopsy (EUS-LB) has come to the forefront as a safe and effective method for obtaining tissue in CLD. There are several studies of the safety of EUS-LB as well as the adequacy of specimens obtained in this fashion. Most studies involve a 19-gauge needle, therefore in this study the investigators hope to compare the tissue yields of a 22-gauge fine needle biopsy (FNB) needle, in comparison to conventional 19-gauge. The investigators predict that 19 and 22 gauge FNB needle will demonstrate similar diagnostic accuracy, with less visible blood artifact. Similarly the investigators predict the safety to be equal.
NCT03676699
Sepsis is a common serious problem in surgical critical care units.Septic shock can be a consequence of severe sepsis with high mortality rate, in which there is major disturbance on the cellular, metabolic and circulatory levels.Patients who suffer from malignancy or under chemotherapeutic treatment are at higher risk of sepsis.Postoperative cancer patients carry both the risk of underlying malignancy with superimposed risk of major surgical procedure.\]. Monitoring effective fluid resuscitation and patient's hemodynamic status is achieved through different techniques mainly by measuring central venous pressure (CVP), pulmonary artery occlusion pressure (PAOP) and transpulmonary thermodilution along with chest radiography analysis .This study aims to investigate the correlation between lung ultrasound and IVC collapsibility index in assessment of fluid responsiveness in cancer patients with septic shock.
NCT03337191
Caudal epidural block has been widely used, especially in pediatric surgery, to provide intraoperative and postoperative analgesia by affecting the region between T10 and S5 dermatomes in surgeries below the umbilical level. In conventional single-shot caudal block, the needle is inserted through the skin with a 60-80 degrees angle, until the sacrococcygeal ligament is passed through. Then the angle of the needle is decreased to 20-30 degrees and inserted further for an additional 2-3 mm, entering into the sacral canal.There is a risk of dural or vascular puncture when the needle is passing through sacral canal. Other complications are the soft tissue bulging, intraosseous injections and systemic toxicity. Many anatomical variations have been reported for sacral hiatus and sacral cornua. Therefore, the success rate of the classic caudal epidural anesthesia method in pediatric patients has been reported to be about 75%. With the usage of ultrasonography in regional anesthesia, many advantages have been reported. Ultrasonography is helpful for visualization of the sacral hiatus, sacrococcygeal ligament, duramater, epidural space and the distribution of the local anesthetic agent within the epidural space. Therefore, this significantly increases the block success. The primary aim of this study was compare the success rate of ultrasound guided sacral hiatus injection and conventional sacral canal injection. Secondary objectives are; block performing time, number of needle puncture, success at first puncture and complication rate.