Top Tweets for #Neuropocus

🧠 Are We Missing Half of the Brain's Circulation? For decades, neurocritical care has focused primarily on arterial flow. We monitor cerebral perfusion, vasospasm, autoregulation, pulsatility indices, and intracranial pressure. Yet one critical component of intracranial hemodynamics remains largely overlooked: Cerebral venous outflow. A recent review in Diagnostics argues that Transcranial Color Doppler (TCCD) should evolve beyond being merely the "stethoscope of the brain" for arterial circulation and begin incorporating systematic assessment of cerebral venous drainage. The authors highlight a simple but important physiological concept: 🩸 Intracranial hypertension is not only a problem of arterial inflow. It may also be a problem of impaired venous outflow. Mechanical ventilation, elevated PEEP, hypercapnia, increased intra-abdominal pressure, Trendelenburg positioning, cardiac tamponade, pulmonary hypertension, large-bore jugular catheters, and venous obstruction can all impair cerebral venous drainage and contribute to cerebral congestion. Using venous TCCD combined with internal jugular vein ultrasound, clinicians may be able to detect cerebral venous congestion before conventional markers such as optic nerve sheath diameter (ONSD) enlargement or arterial Doppler changes become evident. Particularly interesting for intensivists and anesthesiologists, the review presents clinical examples where: 🔹 Mechanical ventilation reduced Rosenthal vein flow despite stable arterial Doppler findings. 🔹 Large-bore central venous catheters further impaired cerebral venous drainage. 🔹 Hemodynamically significant pericardial effusion produced profound venous congestion detectable by ultrasound before definitive diagnosis. 🔹 Pneumoperitoneum and Trendelenburg positioning increased jugular venous congestion during surgery. The key message is not that venous TCCD replaces current neuromonitoring tools. Rather, it may provide an additional physiological layer that helps explain why some patients develop intracranial hypertension despite apparently acceptable arterial parameters. As critical care increasingly moves toward physiology-guided management, perhaps the next frontier is understanding not only how blood enters the brain, but also how it leaves it. Question for the neurocritical care and perioperative community: Do you routinely consider cerebral venous drainage when adjusting PEEP, patient positioning, pneumoperitoneum pressures, or central venous access strategies? Reference📚 Bianchini A, Vitale G, Melegari G, et al. Transcranial Color Doppler for Assessing Cerebral Venous Outflow in Critically Ill and Surgical Patients. Diagnostics. 2026;16:289. https://t.co/S4Hy5iDXf0 #NeurocriticalCare #POCUS #TCD #TCCD #CriticalCare #IntensiveCare #Anesthesiology #NeuroMonitoring #Ultrasound #MechanicalVentilation #ICP #BrainInjury #CriticalCareMedicine #FOAMed #MedEd

Neurological emergencies demand rapid bedside insight into cerebral physiology. In this review we summarise the evidence for NeuroPOCUS—including TCD, TCCD and optic nerve sheath ultrasound—and outline the new UK accreditation pathway for paediatric & adult practice. 🧠 Non-invasive neuromonitoring is coming of age. #FUSIC https://t.co/Vv5atJBtNr