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BACKGROUND Nutritional depletion, either macronutrient- or micronutrient-related, is common in patients with drug-refractory gastroparesis (GP) for which there is often no effective treatment. We studied a group of 12 patients (4 men, 8 women; mean age, 35.7 years) who had symptoms of GP and were a subset of the Gastric ElectroMechanical Stimulation trial(More)
BACKGROUND Drug-refractory gastroparesis has previously been without acceptable alternative therapies. Although gastric electrical stimulation has been used for over a decade, no long-term multicenter data exist. METHODS We studied 214 consecutive drug-refractory patients with the symptoms of gastroparesis (146 idiopathic, 45 diabetic, 23 after surgery)(More)
Several barriers to colorectal cancer screening have been identified including limited access to trained endoscopists and highlight insufficient capacity to meet projected demand for colonoscopies. Two European studies have found that nonphysician providers can perform colonoscopies as safely and accurately as physicians. Training nurse practitioners (NP)(More)
OBJECTIVES Patients with postgastric surgery gastroparesis are often unresponsive to conventional medical therapy. Gastric electrical stimulation (GES) with the use of high-frequency and low-energy neural stimulation is an approved technique for patients with idiopathic and diabetic gastroparesis. METHODS We hypothesized that GES would improve symptoms,(More)
The prevalence of covalent modifications to DNA (carcinogen-DNA adducts) in 42 human urinary bladder biopsy samples was investigated by 32P-postlabeling methods, with enhancement by both nuclease P1 treatment and 1-butanol extraction. Total mean carcinogen-DNA adduct levels and the mean levels of several specific adducts were significantly elevated in DNA(More)
BACKGROUND Gastric electrical stimulation (GES) has been shown to be efficacious for drug refractory gastroparesis, but GES requires surgery. Placement of temporary GES electrodes endoscopically (ENDOstim) or via a PEG (PEGstim) is feasible, thereby allowing rapid assessment and comparison of temporary use (TEMP) with permanent (PERM) implantation. (More)
OBJECTIVE To define the possible effects of gastric electrical stimulation (GES) for gastroparesis on pancreatic function, we performed 2 related human studies. METHODS Fecal elastase values were compared in 2 patient groups: (1) GES devices ON and (2) GES devices OFF and (2) in 3 control groups: (1) no response (NR) to prokinetic medications, (2)(More)
On the basis of current knowledge of reproductive biology and toxicology, it is apparent that chemicals affecting reproduction may elicit their effects at a number of sites in both the male and the female reproductive system. This multiplicity of targets is attributable to the dynamic nature of the reproductive system, in which the(More)
A left vein varicocele was created in male dogs by partially obstructing the left renal vein medial to the entrance of the left internal spermatic vein. Eight dogs had semen parameters determined preoperatively (2 times/week for five weeks) and postoperatively (2 times/week for twelve weeks). Semen quality was altered by the experimental varicocele. A(More)
BACKGROUND Gastric electrical stimulation has been proven effective for drug-refractory gastroparesis. Placement of stimulator leads and device usually requires a laparotomy, although laparoscopic placement has also been used. METHODS To compare laparotomy with laparoscopy, we examined 36 patients, 18 undergoing laparoscopy and 18 undergoing laparotomy,(More)