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Biomedical subjects

J Pueyo

Publications and source records attributed to J Pueyo.

12 recordsLinked to original sources
PubMed2005

[Vascular access guidelines for hemodialysis].

Quality of vascular access (VA) has a remarkable influence in hemodialysis patients outcomes. Dysfunction of VA represents a capital cause of morbi-mortality of these patients as well an increase in economical. Spanish Society of Neprhology, aware of the problem, has decided to carry out a revision of the issue with the aim of providing help in comprehensión and treatment related with VA problems, and achieving an homogenization of practices in three mayor aspects: to increase arteriovenous fistula utilization as first vascular access, to increment vascular access monitoring practice and rationalise central catheters use. We present a consensus document elaborated by a multidisciplinar group composed by nephrologists, vascular surgeons, interventional radiologysts, infectious diseases specialists and nephrological nurses. Along six chapters that cover patient education, creation of VA, care, monitoring, complications and central catheters, we present the state of the art and propose guidelines for the best practice, according different evidence based degrees, with the intention to provide help at the professionals in order to make aproppiate decissions. Several quality standars are also included.

Arteriovenous Shunt, Surgical↗
PubMed1999

[Video-assisted thoracoscopy for resecting solitary pulmonary nodules].

The objective of this study was to evaluate the usefulness of video assisted thoracoscopy in the resection of solitary pulmonary nodules. Thirty-three patients with solitary pulmonary nodules diagnosed by video assisted thoracoscopy were enrolled prospectively. A preoperative computed tomography scan was obtained for each patient. Harpoons were implanted preoperatively to locate the lesion in patients whose tumors were in the parenchyma. When endoscopic resection proved impossible in five patients, the surgeon resorted to thoracotomy. All were diagnosed after the procedure. One was a case of pulmonary lymphoma, 2 were primary adenocarcinomas of the lung, 2 were oat-cell cancers, 1 was Wegener's disease, 4 were tuberculomas, 3 involved pulmonary infarction and 20 were single pulmonary metastases. Patients who needed thoracotomy required more days of postsurgical drainage (p < 0.05). The size of resected nodules ranged from 0.4 to 6 centimeters. Preoperative positron emission tomographs were available for four patients. No perioperative (< 30 days) mortality occurred and morbidity consisted of one case of prolonged airway leak (> 7 days). Use of video-assisted thoracoscopy reduced perioperative morbidity and hospital stay.

Adolescent↗
PubMed1998

[Endoscopic resection of juvenile nasopharyngeal fibromas].

Current surgical approaches to juvenile nasopharyngeal angiofibromas (JNA) are exclusively external. This implies not only incisions that are mostly visible, but also a potential loss of function as well as secondary lesions and high perioperative risks. Radiotherapy aims to avoid surgery, but cannot exclude complications and possible sequelae. These consequences are commonly accepted as the "costs" for both therapies, although neither is negligible. For both surgery and radiotherapy, recurrences or persistence rates have been described, so that outcome may result in questions for the treatment used as well as the complications or sequelae. We report our experiences with two cases of JNA operated on under endoscopic control and discuss our indications for the endoscopic approach to these tumors, preoperative conditions, surgical technique, and the possible difficulties of surgery and outcome. Our results encourage us to recommend use of endoscopic surgery as a valid alternative method to approach resections of certain JNA.

Adolescent↗
PubMed1998

Jugular venous oxygen monitoring: a helpful technique in the early diagnosis of a traumatic carotid-cavernous sinus fistula.

This report describes the early diagnosis of a right traumatic carotid-cavernous sinus fistula (CCSF) in a patient with head injury manifested as an acute increase in right jugular venous oxygen saturation and with no ophthalmic clinical signs. High values of jugular venous oxygen saturation must be cautiously interpreted with the clinical examination and computed tomographic findings to establish an accurate diagnosis of hyperemia with or without a CCSF.

Adult↗
PubMed1998

Combined percutaneous-endoscopic pancreatic pseudocyst drainage--a new technique.

Surgical drainage has been the traditional approach to treating pancreatic pseudocysts. Percutaneous and endoscopic treatment of pancreatic pseudocyst were recently suggested as an alternative to surgery. In order to avoid the difficulties that can be observed in some patients in the percutaneous or endoscopic management of pancreatic pseudocysts we have used a combined procedure. We have treated by the "rendezvous" technique two patients suffering from pancreatic fistula complicating pancreatic pseudocysts. A percutaneous-endoscopic approach was used to place an internal stent between the pseudocyst and the duodenum. We have applied the same combined approach to the main pancreatic duct that is usual for bile duct obstruction without noticeable complications. Although application of this technique will be very limited, we advocate in the future the combined approach to treating pancreatic pseudocyst when there is a fistula between the fluid collection and pancreatic duct, and the downstream main pancreatic duct is obstructed, preventing use of the transpapillary approach.

Adult↗
PubMed1998

[Reconstruction of a palatal defect with pedicled myomucosal flap of buccinator muscle].

The myomucosal flap from buccinator muscle is a versatile flap useful on reconstruction of defects located in the palatine region. We report the case of a vascular tumor located in the left palate which was removed and rebuilt with a myomucosal flap taken from buccinator muscle. We proceed previously to the embolization of its nutritional artery (a. palatina major).

Aged↗
PubMed1994

Percutaneous vascular and nonvascular puncture under US guidance: role of color Doppler imaging.

Although ultrasound guidance is extensively used in percutaneous interventional procedures, the limitations of B-mode, gray-scale sonographic guidance can restrict clinical use. Little attention has been paid to the use of color Doppler sonography during such procedures. There are several ways in which color Doppler sonography can facilitate percutaneous procedures that involve insertion of a needle or catheter. The advantages of color Doppler sonography include the following: (a) better visualization of the shaft and tip of the needle, especially in solid, echogenic lesions, when the needle is moving, or when the beam-needle angle is narrow; (b) improved targeting of either vessels or non-vascular structures (ie, biliary ducts) to be punctured; (c) avoidance of interposed vascular structures and highly vascular areas during puncture of lesions; (d) improved visualization of poorly echogenic catheters, allowing proper placement; and (e) prompt detection of complications, including active bleeding, after withdrawal of the needle.

Biopsy, Needle↗
PubMedDate not supplied

CT-guided paracoccygeal drainage of pelvic abscesses.

OBJECTIVE: Using the transrectal/transvaginal routes for the drainage of pelvic abscesses complicating colorectal surgery (anterior resection or abdominoperineal resection) is not always possible. The conventional transgluteal approach through the greater sciatic foramen, although proven to be a valuable access route, can have complications (mainly local pain). MATERIALS AND METHODS: To avoid these difficulties, a CT-guided paracoccygeal-infragluteal approach was used in the percutaneous drainage of deep pelvic (presacral and ischiorectal) abscesses presenting after colorectal surgery in six patients. RESULTS: Percutaneous drainage through this approach was successful in preventing the need for surgery in all six patients. No complications or recurrences were noted, and catheters were removed an average of 15 days after insertion. CONCLUSION: In comparison with the classical transgluteal approach, the paracoccygeal-infragluteal approach minimizes patient discomfort and minimizes the risk of potential injury to the sciatic plexus or blood vessels. This initial series shows that a CT-guided paracoccygeal-infragluteal approach is well tolerated, safe, and effective for the percutaneous drainage of pelvic abscesses developing after colorectal surgery.

Abdomen↗