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showing 10 items of 6213 documents
Prevention of ischemic-type biliary lesions by arterial back-table pressure perfusion
2003
Abstract Ischemic-type biliary lesions (ITBLs) lead to considerable morbidity after orthotopic liver transplantation (OLT). The exact pathogenesis is unknown. We tested the hypothesis that insufficient perfusion of biliary arterial vessels might be responsible for ITBLs. This could be prevented by improved perfusion techniques. Since February 2000, we performed a controlled study using arterial back-table pressure perfusion (AP) to achieve reliable perfusion of the biliary-tract capillary system, which may be impaired by the high viscosity of University of Wisconsin solution. We retrospectively analyzed 190 OLTs performed between September 1997 and July 2002 with regard to ITBLs. One hundre…
Analysis of interleukin-6 and interleukin-8 in lung transplantation: correlation with nitric oxide administration.
2008
Introduction and Objectives. Primary graft dysfunction (PGD) following lung transplantation (LT) is associated with an activation of the inflammatory cascade and release of cytokines. Inhaled nitric oxide (iNO) provides specific pulmonary vasodilatation and improves oxygenation. Our objective was to verify whether administering iNO to LT patients modified the blood and bronchoalveolar lavage (BAL) interleukin (IL)-6 and -8 levels in the event of PGD. Materials and Methods. Thirty-two LT patients were randomized to the iNO treatment or the control group. Patients in the first group were given 10 ppm of iNO from the start of LT until 48 hours afterward. BAL and peripheral arterial blood sampl…
Mantenimiento de la lactancia materna exclusiva a los 3 meses posparto: experiencia en un departamento de salud de la Comunidad Valenciana
2019
Resumen: Objetivos: Determinar la prevalencia de la lactancia materna exclusiva (LME) a los 3 meses posparto, y conocer las causas que contribuyen al abandono precoz. Diseño: Estudio observacional y restrospectivo. Emplazamiento: Departamento de Salud de la Ribera, Valencia, España. Participantes: Niños nacidos entre diciembre de 2012 y enero de 2017. Mediciones principales: prevalencia de lactancia materna al alta y de LME a los 3 meses. Motivos de abandono de LME. Determinación de Chi-cuadrado entre variables categóricas. Metodología: Las mujeres fueron entrevistadas en el posparto y a los 3 meses posparto, teniendo en cuenta las variables asociadas al inicio de la lactancia y su continua…
Transanal hemorrhoidal dearterialization versus Milligan-Morgan hemorrhoidectomy in grade III/IV hemorrhoids.
2019
La terapia delle emorroidi di III e IV si basa sul trattamento chirurgico. All’emorroidectomia secondo Milligan Morgan (MM), da molti chirurghi considerata il gold standard, si affiancano attualmente metodi chirurgici considerati meno invasivi come la Procedura per Prolasso ed Emorroidi (PPH) e la dearterializzazione emorroidaria transanale (THD). Gli Autori hanno voluto confrontare in un trial prospettico e randomizzato la emorroidectomia secondo MM e la THD nel trattamento di emorroidi di III e IV grado valutandone i risultati a breve e medio termine. Materiali e metodi: Tra gennaio 2010 e marzo 2013 sono stati reclutati 87 pazienti con emorroidi di III e IV grado secondo la classificazio…
Assessment of various factors influencing esophageal pressure measurement
1980
Die intraluminale Manometrie wird zunehmend fur die Diagnose osophagealer Motilitatsstorungen eingesetzt. Die klinische Validitat der Methode hangt jedoch entscheidend von einer exakten Standardisierung der Methodik, des Untersuchungsablaufes und der Kenntnis der Einflusgrosen auf das Mesergebnis ab. Im ersten Teil dieser Studie wurde der Einflus verschiedener methodischer Faktoren auf das Ergebnis der Osophagusdruckmessung in Modellversuchen, bei 44 gesunden Probanden und bei 74 Patienten mit axialer Hiatushernie mit einem elektromagnetischen Mikrotransducer untersucht. Signifikante Unterschiede der Meswerte fanden sich in Abhangigkeit von der Sensorposition im oberen Osophagussphinkter (p…
Changes in Tear Protein Pattern after Photorefractive Keratectomy
2003
PURPOSE. Changes in tear protein composition of patients who underwent photorefractive keratectomy (PRK) were analyzed. METHODS. Tear samples were obtained from 23 eyes of 23 patients immediately before PRK and on the fourth postoperative day with glass capillaries. Tear proteins were separated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Digital image analysis and evaluation of the densitometric data of the electrophoretic separations were done with BioDoc-Analyze. RESULTS. Analysis of discriminance found a significant difference in the protein patterns (p<0.001). This type of analysis of the electrophoretic densitographs uses all peak information simultaneously. A signifi…
Subtemporal Keyhole Approach to the Suprasellar and Petroclival Region: Microanatomic Considerations and Clinical Application
1997
OBJECTIVE: To minimize surgical invasiveness, the keyhole concept is applied to the subtemporal approach. METHODS: Anatomic features were studied in 14 sides of adult cadaver heads, and the technique was used in 162 interventions. Although most of the lesions treated were 3 cm in size or smaller, larger lesions were also treated using this technique. In some cases, if needed, an endoscope-assisted microsurgical technique was used. RESULTS: The cadaveric study provided intimate experience with the microsurgical anatomy of the approach. The 162 consecutive patients who were operated on harbored various types of lesions; the most recent 43 consecutive interventions were investigated in detail.…
Effects of Early Postfiltration Ocular Hypotony on Visual Acuity, Long-term Intraocular Pressure Control, and Posterior Segment Morphology
2001
Purpose To determine whether hypotony after filtration surgery has any influence on visual acuity and intraocular pressure (IOP) lowering. Patients and methods We prospectively investigated 43 eyes of 43 patients undergoing trabeculectomy without the use of antimetabolites for 12 months. Results The lowest postoperative IOP valued 4.9 +/- 3.6 mm Hg (range, 0-14 mm Hg). It correlated statistically significant with the IOP 6 weeks (P = 0.016), 6 months (P = 0.009), and 1 year after surgery (P = 0.027). Eyes with a deterioration of visual acuity 6 weeks after surgery had undergone a stronger postoperative hypotony (correlation with lowest postoperative IOP, P = 0.035). The mean period with an …
Middle patellar tendon to posterior cruciate ligament (PT–PCL) and normalized PT–PCL: New magnetic resonance indices for tibial tubercle position in …
2018
BACKGROUND To demonstrate whether the distance between the middle point of the patellar tendon and posterior cruciate ligament (PT-PCL) calculated on a single axial MR image could be an alternative measure to tibial tubercle-PCL (TT-PCL) distance for TT lateralization without the need of imaging processing. To show that normalization of PT-PCL (nPT-PCL) against the maximum diameter of the tibial plateau may help to identify patients with patellar instability (PI). METHODS MR scans of 30 patients (13 females, age 32 ± 13 years) with known PI and 60 patients (31 females, age 39 ± 19 years) with no history of PI were reviewed. Two operators calculated TT-PCL, and PT-PCL nPT-PCL. Intraclass cor…
Functional evaluation of patients with anterior cruciate ligament injury. A transversal analytical study.
2018
Abstract Objective To evaluate, by means of biomechanical analysis, functional alterations of gait and balance of patients with anterior cruciate ligament (ACL) injury. Material and methods Transversal analytical study on 64 people, 27 health subjects and 37 patients with ACL injury. Biomechanical analysis of gait in all individuals was performed by means of four tests: (1) kinematic test, to characterize gait pattern; (2) kinetic test, to characterize forces against the floor, duration of treads, symmetry of both legs, and the reproducibility of the gait; (3) pivot-shift test, to analyze the rotational stability of the knee on the sagittal axis; and (4) equilibrium test. Results Alteration…