Search results for "retrograde"
showing 10 items of 103 documents
Clinical and radiological course in apicoectomies with the Erbium : YAG LASER
2007
A study is made of the efficacy of the Erbium: YAG laser in granulomatous periapical lesions, based on clinical and radiographic controls. The study comprised a series of 45 patients amenable to periapical surgical treatment of incisors, canines and premolars. A conventional surgical technique was used, with silver amalgam retrograde filling and irradiation of the bone defect and remnant root cement with the Erbium: YAG laser. Clinical and radiographic controls were made during 24 months, assessing the absence of symptoms and the presence of pain, swelling or fistula and ossification of the lesions, respectively. The clinical course proved asymptomatic in 95.5% of the cases. As regards remo…
Secondary sclerosing cholangitis after long-term treatment in an intensive care unit: clinical presentation, endoscopic findings, treatment, and foll…
2006
Background and study aims We present ten patients who developed secondary sclerosing cholangitis following long-term treatment in an intensive care unit (ICU) between 1999 and 2004. Patients and methods Ten consecutive patients who had no evidence suggestive of pre-existing hepatobiliary disease were admitted to an ICU because of trauma (n = 5), intracerebral hemorrhage (n = 3), or nonabdominal postsurgical complications (n = 2). All the patients had required treatment with long-term ventilation, catecholamines, total parenteral nutrition, and several antimicrobial agents. Results Cholestasis was first noted within 11 days after the initial insult. Endoscopic retrograde cholangiopancreatogr…
Intraductal aspiration: a promising new tissue-sampling technique for the diagnosis of suspected malignant biliary strictures
2012
Brushing is the most commonly used technique for biliary sampling at ERCP, despite its limited sensitivity. To evaluate intraductal aspiration (IDA) as a new combined endoscopic technique for cytodiagnosis, its cellular adequacy, diagnostic accuracy for cancer detection, feasibility, and safety. Prospective, observational study. Single tertiary referral center. IDA cellular adequacy, diagnostic accuracy for cancer detection, feasibility, and safety. From April 2009 to September 2010, 42 consecutive patients with suspected malignant biliary stricture underwent ERCP, with tissue sampling obtained with IDA. IDA included performance of standard brushing in all patients. After standard brushing,…
Rectal Diclofenac administration for prevention of post-Endoscopic Retrograde Cholangio-Pancreatography (ERCP) acute pancreatitis. Randomized prospec…
2019
Introduction. Post-Endoscopic Retrograde Cholangio-Pancreatography pancreatitis (PEP) is a relevant (1-4%) complication of biliopancreatic operative endoscopy. Rectal nonsteroidal anti-inflammatory drugs (specifically, 100 mg of diclofenac) have shown promising prophylactic activity in PEP. The aim of our prospective study is to report whether prophylactic oral versus rectal suppository versus intramuscular diclofenac versus placebo are able to reduce the incidence and the severity of ERCP-induced pancreatitis.Materials and Methods. in this randomized, double-blinded, prospective study, 100 patients (49 male, 51 female), similar with regard to indication for ERCP, were enrolled between Janu…
Long Term Results of Bladder Exstrophy
1999
After primary bladder closure or urinary diversion, other factors apart from the reconstruction gain importance for individuals with the exstrophy-epispadias complex: social integration and, after reaching puberty, sexuality and fertility.
Presynaptic nitric oxide/cGMP facilitates glutamate release via hyperpolarization-activated cyclic nucleotide-gated channels in the hippocampus
2011
In hippocampal neurons, synaptic transmission is affected by a variety of modulators, including nitric oxide (NO), which was proposed as a retrograde messenger as long as two decades ago. NO signals via two NO-sensitive guanylyl cyclases (NO-GCs) (NO-GC1 and NO-GC2) and the subsequent increase in cGMP. Lack of long-term potentiation in mice deficient in either one of the two NO-GCs demonstrates the involvement of both NO-GCs in synaptic transmission. However, the physiological consequences of NO/cGMP and the cellular mechanisms involved are unknown. Here, we analyzed glutamatergic synaptic transmission, most likely reflecting glutamate release, in the hippocampal CA1 region of NO-GC knockou…
Arabidopsis RCD1 coordinates chloroplast and mitochondrial functions through interaction with ANAC transcription factors
2019
Reactive oxygen species (ROS)-dependent signaling pathways from chloroplasts and mitochondria merge at the nuclear protein RADICAL-INDUCED CELL DEATH1 (RCD1). RCD1 interacts in vivo and suppresses the activity of the transcription factors ANAC013 and ANAC017, which mediate a ROS-related retrograde signal originating from mitochondrial complex III. Inactivation of RCD1 leads to increased expression of mitochondrial dysfunction stimulon (MDS) genes regulated by ANAC013 and ANAC017. Accumulating MDS gene products, including alternative oxidases (AOXs), affect redox status of the chloroplasts, leading to changes in chloroplast ROS processing and increased protection of photosynthetic apparatus.…
Immunfluorescence study of neuropeptides in identified neurons of the rat auditory superior olivary complex.
1999
The present study was conducted to investigate the distribution and immunohistochemical characteristics of ascending and descending projection neurons of the rat superior olivary complex (SOC), a group of interrelated brainstem nuclei. Ascending neurons were identified by injection of cholera toxin B subunit (CTB) into the central nucleus of the inferior colliculus (IC), descending neurons were labeled by application of Fluoro-Gold (FG) into the scala tympani of the cochlea, ipsilaterally to the IC injection. In accordance with the literature, we observed neurons innervating the IC located in the lateral superior olivary nucleus (LSO) and dorsal periolivary groups (DPO) on both sides, in th…
Evidence for an overlap syndrome of autoimmune hepatitis and primary sclerosing cholangitis.
1996
Abstract Background/Aims: Autoimmune hepatitis, primary biliary cirrhosis and primary sclerosing cholangitis are chronic liver diseases with probable autoimmune background. Overlapping features have been described for primary biliary cirrhosis and autoimmune hepatitis. In contrast, there have been only a few case reports on an overlap of autoimmune hepatitis and primary sclerosing cholangitis. Methods: We describe three male patients with clinical and histological overlapping features of primary sclerosing cholangitis and autoimmune hepatitis. Results: All initially asymptomatic patients had elevated levels of aminotransferases, alkaline phosphatase, γ-glutamyltranspeptidase and IgG. Anti-n…
Endoscopic treatment of the "sump syndrome" after choledochoduodenostomy: a new technique using an amplatzer septal occluder.
2006
A 58-year-old male patient had been suffering for 35 years from recurrent cholangitis, biliary sludge and infection-induced stone formation after open cholecystectomy because of empyema of the gallbladder and severe acute and delayed postoperative complications. The pathophysiological origin of this chronic "sump syndrome" was a choledochoduodenostomy which had been performed prophylactically at the time of the initial operation. The patient agreed to an experimental treatment option with use of an Amplatzer atrial-septal defect (ASD) occluder for closure of the symptomatic choledochoduodenal fistula. The double-disc occluder was introduced through a 9 French diameter and 90 cm long sheath …