X-ray diffraction studies demonstrate that oxidative addition of SiH(4) to Ir(PPh(3))(2)(CO)Cl yields Ir(PPh(3))(2)(CO)(Cl)(SiH(3))H, which features a cis arrangement of the SiH(3) and H ligands in which H is located trans to CO, rather than trans to Cl as originally reported. (1)H NMR spectroscopic studies indicate that oxidative addition of GeH(4) to Ir(PPh(3))(2)(CO)Cl also occurs in a cis m...

BACKGROUND AND PURPOSE In reviewing MR images of patients with spontaneous intracranial hypotension (SIH), we found an accentuated decrease in the subcortical white matter on fluid-attenuated inversion recovery (FLAIR) images. Our aim was to determine whether the signal intensity of the subcortical white matter decreases on FLAIR and T2-weighted images in SIH. MATERIALS AND METHODS We retrosp...

OBJECTIVE Spontaneous intracranial hypotension (SIH) is most commonly caused by cerebrospinal fluid (CSF) leakage. Therefore, we hypothesised that patients with orthostatic headache (OH) would show decreased optic nerve sheath diameter (ONSD) during changes from supine to upright position. METHODS Transorbital B-mode ultrasound was performed employing a high-frequency transducer for ONSD meas...

Spontaneous cerebrospinal fluid (CSF) leak is a recognized cause of spontaneous intracranial hypotension (SIH). Subdural hematoma (SDH) is a serious but rare complication of SIH. An autologous epidural blood patch at the CSF-leak site can effectively relieve SIH. We report a case of bilateral SDH with SIH caused by a CSF leak originating at the C1-2 level. A 55-year-old male complained of ortho...

PURPOSE Spontaneous intracranial hypotension (SIH) is a relatively uncommon cause of headache, which usually presents as orthostatic cranial pain and is relieved by recumbency. The precise cause of spontaneous spinal cerebrospinal fluid leakage related SIH remains unknown. CASE REPORT We report the case of a 32-year-old man who presented with an orthostatic headache. Brain magnetic resonance ...

Spontaneous intracranial hypotension (SIH) due to a spinal cerebrospinal fluid leak is a rare but increasing cause of postural headache. Its extravasated epidural fluid collection tends to be non-enhanced or mildly enhanced on enhanced magnetic resonance (MR) imaging. The mild enhancement of the epidural fluid in SIH is usually attributed to fenestrated neovascularization provoked by an inflamm...

Fe-salicylaldehyde isonicotinoylhydrazone (SIH), which can donate iron to reticulocytes without transferrin as a mediator, has been utilized to test the hypothesis that the rate of iron uptake from transferrin limits the rate of heme synthesis in erythroid cells. Reticulocytes take up 59Fe from [59Fe]SIH and incorporate it into heme to a much greater extent than from saturating concentrations o...

Subdural haematoma (SDH) is a potentially life-threatening complication in patients with spontaneous intracranial hypotension (SIH). In serious cases, SIH patients who present with SDHs develop neurological deficits, a decreased level of consciousness, or cerebral herniation, and may even require an urgent neurosurgical drainage. Despite numerous publications on SDHs, few report its potential r...

BACKGROUND Photographs of skin wounds have the most important information during the secondary intention healing (SIH). However, there is no standard method for handling those images and analyzing them efficiently and conveniently. OBJECTIVE To investigate the sequential changes of SIH depending on the body sites using a color patch method. METHODS We performed retrospective reviews of 30 p...

Background: Stress-induced hyperglycemia (SIH) is a form of hyperglycemia secondary to stress and commonly occurs in patients with trauma. Trauma patients with SIH have been reported to have an increased risk of mortality. However, information regarding whether these trauma patients with SIH represent a distinct group with differential outcomes when compared to those with diabetic hyperglycemia...