Hypoxic pulmonary vasoconstriction is a local reflex in the lung that diverts blood away from poorly oxygenated regions. Improvements in understanding of modulators of this response have led to pharmacologic methods whereby V/Q matching may potentially be improved in certain types of pulmonary pathology and during anesthesia for thoracic surgical procedures.

BACKGROUND Reversible cerebral vasoconstriction syndrome is characterized by thunderclap headache associated with multifocal vasoconstriction of cerebral arteries in patients without aneurysmal subarachnoid hemorrhage (SAH). The vasoconstriction reverts within three months. We report a 44-year-old man who had a thunderclap headache during sexual intercourse. A similar episode occurred at rest 3...

The Sa were seated in a comfortable chair facing a hidden speaker. The finger cup was sealed to the tip of the right finger with a caulking compound (Nu-Calk) and the hand was allowed to rest on the wide arm of the chair. The other recording equipment was attached and Ss were left alone in the BOund-controlled testing room. The Ss were randomly assigned to shortand long-stimulus groups (20 intr...

Preeclampsia(PE) is a hypertensive disorder affecting about 5-14% of pregnancies worldwide and around 20% high-risk pregnancies, resulting in maternal perinatal morbidity mortality. Imbalances milieu serum sodium potassium, that are involved functioning vascular smooth muscles, leads to vasoconstriction hypertension PE. Calcium deficiency stimulates parathyroid hormone, leading vasoconstriction...

It is known fact that adding adrenaline to local anesthetic gives many advantages but it not practiced commonly in digital anaesthesia due fear of ischemia resultant vasoconstriction. Total five cases were there. All patients received lignocaine with block. Recent literature and our findings both suggest use at least a well perfused finger safe may give some potential advantages.