Comparison between a weight compression and a magnet compression for experimental pressure ulcers in the rat. Histological studies and effects of anesthesia

Hashimoto, Masakazu; Kurose, Tomoyuki; Kawamata, Seiichi

doi:10.1679/aohc.71.303

Cited by 14 publications

(15 citation statements)

References 18 publications

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“…29) It has also been suggested that a copy number variation in a certain region of the genome may play a role as a genetic risk factor for iNPH. 19) Each hypothesis described above does not exclude the others; one hypothesis may focus on the etiology and pathogenesis of iNPH from a single viewpoint, differently from the others. Further study is needed to clarify the exact etiology and pathogenesis of iNPH.…”

Section: -B Etiologymentioning

confidence: 99%

“…3,19,30,45,91,98,106,133) Memory is frequently impaired in patients with mild iNPH; however, recognition memory is relatively preserved compared with recall. 102) Verbal fluency is also impaired.…”

Section: -B Characteristics Of Cognitive Impairment (Dementia)mentioning

confidence: 99%

“…The values vary depending on the site of injection (lumbar site 19,22,59,88,113,131) ), speed of injection (at a constant injection speed 19,22,59,109,113) or bolus injection 131) ), and ICP measurement site (lumbar subarachnoid pressure 19,22,59,88) or epidural pressure 113,131) ); however, the values are not affected by lesions of the meninges or cerebral parenchyma.…”

Section: -B-iii Csf Dynamics Test (Csf Space Volume Load Test)mentioning

confidence: 99%

“…1) CSF outflow resistance (R out ): In previous reports, R out was significantly elevated in shuntingeffective groups and its positive predictive rate was over 80%. 19,59,113,131) However, the absolute value of R out and the threshold between shunting-effective and -ineffective were reported as approximately 14-20 mmHg/ml/min (positive predictive rate 80-92%), 19,59,131) the value differs according to the method of injection. Moreover, many recent studies report that there is no correlation between R out and the efficacy of shunting.…”

Section: -B-iii Csf Dynamics Test (Csf Space Volume Load Test)mentioning

confidence: 99%

“…An anti-siphon device is either an auxiliary device for the above-mentioned valves or a built-in part. 19,54) Table 6 summarizes current models available in Japan.…”

Section: -B Types Of Shunt Systemsmentioning

confidence: 99%

See 4 more Smart Citations

Guidelines for Management of Idiopathic Normal Pressure Hydrocephalus: Second Edition

Mori

Ishikawa

Kato

et al. 2012

Neurol. Med. Chir.(Tokyo)

557

723

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Among the various disorders manifesting dementia, gait disturbance, and urinary incontinence in the elderly population, idiopathic normal pressure hydrocephalus (iNPH) is becoming of great importance. After the publication of the first edition of the Guidelines for Management of Idiopathic Normal Pressure Hydrocephalus in 2004 (the English version was published in 2008), clinical awareness of iNPH has risen dramatically, and the number of shunt surgeries has increased rapidly across Japan. Clinical and basic research on iNPH has increased significantly, and more high-level evidence has since been generated. The second edition of the Japanese Guidelines was thus published in July 2011, to provide a series of timely evidence-based recommendations related to iNPH. The revision of the Guidelines has been undertaken by a multidisciplinary expert working group of the Japanese Society of Normal Pressure Hydrocephalus in conjunction with the Japanese Ministry of Health, Labour and Welfare research project on``Studies on the epidemiology, pathophysiology, and treatment of normal pressure hydrocephalus.'' This English version of the second edition of the Guidelines was made to share these ideas with the international community and to promote international research on iNPH.

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Section: -B Etiologymentioning

confidence: 99%

Section: -B Characteristics Of Cognitive Impairment (Dementia)mentioning

confidence: 99%

Section: -B-iii Csf Dynamics Test (Csf Space Volume Load Test)mentioning

confidence: 99%

Section: -B-iii Csf Dynamics Test (Csf Space Volume Load Test)mentioning

confidence: 99%

“…An anti-siphon device is either an auxiliary device for the above-mentioned valves or a built-in part. 19,54) Table 6 summarizes current models available in Japan.…”

Section: -B Types Of Shunt Systemsmentioning

confidence: 99%

See 3 more Smart Citations

Guidelines for Management of Idiopathic Normal Pressure Hydrocephalus: Second Edition

Mori

Ishikawa

Kato

et al. 2012

Neurol. Med. Chir.(Tokyo)

557

723

View full text Add to dashboard Cite

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Ischemia‐reperfusion injury in rat skeletal muscle assessed with T₂‐weighted and dynamic contrast‐enhanced MRI

Loerakker

Oomens

Manders

et al. 2011

Magnetic Resonance in Med

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Pressure ulcers are localized areas of soft tissue breakdown due to mechanical loading. Susceptible individuals are subjected to pressure relief strategies to prevent long loading periods. Therefore, ischemia-reperfusion injury may play an important role in the etiology of pressure ulcers. To investigate the inter-relation between postischemic perfusion and changes in skeletal muscle integrity, the hindlimbs of Brown Norway rats were subjected to 4-h ischemia followed by 2-h reperfusion. Dynamic contrastenhanced MRI was used to examine perfusion, and changes in skeletal muscle integrity were monitored with T 2 -weighted MRI. The dynamic contrast-enhanced MRI data showed a heterogeneous postischemic profile in the hindlimb, consisting of areas with increased contrast enhancement (14-76% of the hindlimb) and regions with no-reflow (5-77%). For T 2 , a gradual increase in the complete leg was observed during the 4-h ischemic period (from 34 to 41 msec). During the reperfusion phase, a heterogeneous distribution of T 2 was observed. Areas with increased contrast enhancement were associated with a decrease in T 2 (to 38 msec) toward preischemic levels, whereas no-reflow areas exhibited a further increase in T 2 (to 42 msec). These results show that reperfusion after prolonged ischemia may not be complete, thereby continuing the ischemic condition and aggravating tissue damage. Magn Reson Med 66:528-537, 2011.

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Parameters for estimating the feasibility of implantation of a semi-implantable bone conduction device (SIBCD) in children and adolescents

Spiegel

Buhr

Freytag

et al. 2022

Eur Arch Otorhinolaryngol

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Purpose In children and adolescents, preoperative planning for a semi-implantable bone conduction device (SIBCD) is crucial. The geometric changes of the new version of a common SIBCD should enable a higher rate of successful implantation due to its flatter actuator. Thus, this radioanatomic study compared the rate of successful implantation of both device versions at the traditional mastoidal localization and two alternative sites, retrosigmoidal, and parietal, and investigated parameters helping to estimate the feasibility. Methods A retrospective analysis of 136 CT scans of 0 to 20-year-old patients, evaluation of demographic parameters, radioanatomy, and assessment of head diameter was conducted. The feasibility was investigated for certain age groups at three implantation sites. Prediction of feasible implantation by means of different parameters was calculated. Results A significant higher implantation rate was observed with the new device for all three sites and age groups. The age group of 6–8 years (n = 19) had most striking differences with a 58.1% rate of successful implantation with the new device without spacer (80% with spacer) at the mastoidal localization, whereas none with the old implant. Head diameter was identified as the most predictive parameter regarding all implantation sites (mastoidal: p = 0.030; retrosigmoidal: p = 0.006; parietal: p < 0.0001), age for the mastoidal (p < 0.0001) and retrosigmoidal (p < 0.0001), and gender for the parietal site (p = 0.001). Conclusion The geometric changes of the actuator lead to a higher rate of successful implantation in all age-groups and all three localizations with reducing the requirement for spacers. Parameters age and head diameter might aid in estimating the rate of successful implantation in young patients and may be a novel tool to assist in the decision-making process for a SIBCD.

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Comparison between a weight compression and a magnet compression for experimental pressure ulcers in the rat. Histological studies and effects of anesthesia

Cited by 14 publications

References 18 publications

Guidelines for Management of Idiopathic Normal Pressure Hydrocephalus: Second Edition

Guidelines for Management of Idiopathic Normal Pressure Hydrocephalus: Second Edition

Ischemia‐reperfusion injury in rat skeletal muscle assessed with T₂‐weighted and dynamic contrast‐enhanced MRI

Parameters for estimating the feasibility of implantation of a semi-implantable bone conduction device (SIBCD) in children and adolescents

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Comparison between a weight compression and a magnet compression for experimental pressure ulcers in the rat. Histological studies and effects of anesthesia

Cited by 14 publications

References 18 publications

Guidelines for Management of Idiopathic Normal Pressure Hydrocephalus: Second Edition

Guidelines for Management of Idiopathic Normal Pressure Hydrocephalus: Second Edition

Ischemia‐reperfusion injury in rat skeletal muscle assessed with T2‐weighted and dynamic contrast‐enhanced MRI

Parameters for estimating the feasibility of implantation of a semi-implantable bone conduction device (SIBCD) in children and adolescents

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Product

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Ischemia‐reperfusion injury in rat skeletal muscle assessed with T₂‐weighted and dynamic contrast‐enhanced MRI