Cerebral Oximetry Decrease After External Carotid Clamping with Normal Electroencephalography and No Change After Internal Carotid Clamping
We present a case in which, before clamping the left carotid artery during an endarterectomy, the right and left rSO2 measurements were 72% and 74%, respectively. Within 15 seconds of clamping the external carotid artery, the left rSO2 decreased by 8%, yielding right and left rSO2 measurements of 70% and 66%, respectively. No electroencephalogram changes ensued. The internal carotid artery was clamped 1 minute later, whereas the external carotid remained clamped. No electroencephalogram changes were observed. The rSO2 measurements demonstrate that the value of this cerebral oximetry is not determined solely from internal carotid blood flow and can be significantly affected by the external carotid.
Conclusions The increase in HR rather than an increase in CBF or forearm venous volume was responsible for the decrease in SV during moderate-intensity exercise when Tsk was held at 38°C.
ConclusionThere is evidence that frontal lobe perfusion is lower during orthostasis in individuals with AF, and that the presence of OH modifies this association.
ConclusionThis study highlights the high prevalence of unidentified or poorly controlled VRF in people with mild cognitive symptoms attending a memory service. Given its importance to brain health and mitigation of future cognitive decline, a structured focus on identifying and managing these VRF in this setting is necessary. Exercise-based lifestyle programs should be embedded in post-diagnostic services for this population.
Semin Respir Crit Care Med 2019; 40: 305-313 DOI: 10.1055/s-0039-1693648Pleural effusions are commonly encountered and have a significant impact on the respiratory system. The reported effect of thoracentesis on physiologic parameters including oxygenation, lung volumes, and respiratory mechanics is variable likely owing to studies with a small, heterogeneous population of patients.Most patients who are short of breath from pleural effusion experience relief following drainage due to improvement in the length–tension relationship of the respiratory muscles. An observed increase in oxygenation following thoracentesis ...
ConclusionsEven though FP-CT provides similar CBV values and reconstructed blood volume maps as CTP in cerebrovascular disease, additional studies are required in order to reliably compare its diagnostic accuracy with cerebral perfusion imaging.
ConclusionBased on IVIM analysis, cerebral microvascular structure and function showed no difference between hypertensive and normotensive patients with moderate-to-severe OSA treated with CPAP. Treatment adherence with antihypertensive drug regime and, in turn, controlled hypertension seems not to affect microvascular structure and perfusion of the brain.Trial registrationClinicalTrials.gov Identifier: NCT02493673
ConclusionsIn a population of symptomatic patients, the majority of patients with extensive calcification had evidence of inducible myocardial ischemia on CTP. CAC score was the only independent predictor of inducible myocardial ischemia on CTP.
CONCLUSIONS: The main result of this research is recommendation of investigating the tissue of interest for diagnosis of diabetes complications, measuring inflammatory mediators of tissue rather than evaluating their serum concentrations, and focusing on vascular complications as a major complication of diabetes. Furthermore, regular exercise could help improve the function of reproductive organs in healthy groups and prevent diabetes infertility complications to an acceptable degree in diabetic groups. PMID: 31517613 [PubMed - in process]
Conclusion We found that normal values of phase analysis can vary among software programs and can be different even when the same software is used.