Timothy D. Herbst

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A limited number of reports of estrogen levels in prepubertal and early pubertal boys have been published because previous estrogen assays have lacked adequate sensitivity to quantitate circulating estrogen concentrations. Development of a new ultrasensitive assay has permitted measurement of estrogen levels in 23 normally growing boys progressing through(More)
In an attempt to overcome infections associated with central venous catheters, a new antiseptic central venous catheter coated with benzalkonium chloride on the internal and external surfaces has been developed and evaluated in a clinical trial. Patients (235) randomly received either a triple-lumen central venous catheter coated with benzalkonium chloride(More)
OBJECTIVE We retrospectively reviewed the CT findings of lower respiratory tract infection (LRTI) due to parainfluenza virus (PIV) to determine the imaging features of PIV infection and to identify any differences compared with the CT appearances of LRTIs due to respiratory syncytial virus (RSV), adenovirus, and influenza virus. MATERIALS AND METHODS The(More)
BACKGROUND Non-invasive blood pressure (BP) devices should be independently evaluated before being used in special populations. The objective of this study was to assess the accuracy of the Welch-Allyn transtelephonic home blood pressure monitor in adults with Parkinson's disease to evaluate the device for use in a large clinical trial involving the safety(More)
Routine follow-up investigation methods after peripheral arterial bypass surgery, such as arteriography and colour duplex sonography, do not always allow correct analysis of moderate alterations in the vessel wall, e.g. initial stages of distal anastomotic intimal hyperplasia (DAIH). The aim of this study was to evaluate the efficiency of angioscopy and(More)
Prevailing analyses of INGO influence have focused on their advocacy role, claimed that they are motivated by values and assumed state monopoly over legitimate coercive power. As INGOs increasingly implement policy where state power is weak or non-existent, their commitment to their mission frequently causes action that violates their proper role. This(More)
BACKGROUND Non-invasive blood pressure (BP) monitoring has become increasingly popular. To assure the accuracy of devices used for this purpose, these devices should be clinically validated using standard criteria such as those published by the Association for the Advancement of Medical Instrumentation (AAMI). The purpose of this study was to collect and(More)
Multipotent-lineage nondominant growth factors, acting alone or in combination with lineage-dominant cytokines, are known to influence both myelopoiesis and thrombocytopoiesis. Interleukin (IL)-3 and IL-11 stimulate and expand multilineage progenitor cells and induce thrombocytopoiesis. These cytokines also act synergistically with various other lineage(More)
This prospective open study was performed to examine the relation between pathologic findings of the upper respiratory tract and the types of noncentral sleep disorders (rhonchopathy, obstructive sleep apnea). 312 men and 274 women aged between 35-75 years attended our outpatient department for relief of their nocturnal breathing disorder. About 1/3 of the(More)