hypercapnia/悪性腫瘍

Bleomycin-induced lung injury is characterized in the neonatal rat by inflammation, arrested lung growth, and pulmonary hypertension (PHT), as observed in human infants with severe bronchopulmonary dysplasia. Inhalation of CO(2) (therapeutic hypercapnia) has been described to limit cytokine

Chronic obstructive respiratory disorders (ORD) are linked to increased rates of cancer related deaths. Little is known about the effects of hypercapnia (elevated CO₂) on pancreatic ductal adenocarcinoma (PDAC) development and

Flow and oxygenation dependent (FLOOD) MR images of GH3 prolactinomas display large intensity increases in response to carbogen (5% CO2/95% O2) breathing. To assess the relative contributions of carbon dioxide and oxygen to this response and the tumour oxygenation state, the response of GH3

Magnetic resonance imaging (MRI) relaxation times provide indirect estimates of tissue O(2) for monitoring tumour oxygenation. This study provides insight into mechanisms underlying longitudinal (R(1) = 1/T(1)) and transverse effective (R(2)* = 1/T(2)*) relaxation rate changes during inhalation of

An EEG has been recorded during surgery for a cervico-mediastinal desmoid fibroma in a 3-year-old child. Soon after anesthetic induction a bronchospasm occurred, followed by major respiratory difficulties. During more than 3 h, hypercapnia reaching 15-24 kpa was noted without hypoxia. Meanwhile the

OBJECTIVE To report feasibility and potential benefits of high-frequency jet ventilation (HFJV) in tumor ablations techniques in liver, kidney, and lung lesions. METHODS This prospective study included 51 patients (14 women, mean age 66 years) bearing 66 tumors (56 hepatic, 5 pulmonary, 5 renal

OBJECTIVE Histological diagnosis between ductal and endocrine carcinoma is imperative in patients with advanced and unresectable pancreatic malignancies because of the different treatment modalities and prognoses. Whenever percutaneous and endoscopic ultrasound-guided pancreatic fine needle

Recently, we have demonstrated the feasibility of using hemodynamic response imaging (HRI), a functional magnetic resonance imaging (MRI) method combined with hypercapnia and hyperoxia, for monitoring vascular changes during liver pathologies without the need of contrast material. In this study, we

Most vasoactive drugs do not readily penetrate the blood-brain barrier and do not affect cerebral blood flow. We tested the hypothesis that vasoactive drugs may alter blood flow to brain tumors in which the blood-brain barrier is abnormal. Blood flow was measured with microspheres in dogs with brain

OBJECTIVE To employ a high resolution blood oxygenation level dependent (BOLD) method called susceptibility weighted imaging (SWI) together with the breathing of carbogen to investigate the response of cerebral tumors to this breathing gas and to assess tumor anatomy at high resolution. METHODS Five

We present an unusual case of hypercapnia and surgical emphysema during transanal endoscopic microsurgery, which led to delayed post-operative ventilatory failure. The hypercapnia and surgical emphysema were secondary to rectal insufflation with carbon dioxide used to facilitate visualization and

Using hypercapnia and carbogen as functional markers of vessel maturation and function, we compared blood oxygen level-dependent (BOLD) contrast with standard dynamic contrast-enhanced (DCE)-MRI quantitative parameters in murine fibrosarcoma. Our results show that there was no correlation between