Nevius' 1894 discovery of modern anesthesia.

106:1189 –94 35. Golparvar M, Naddafnia H, Saghaei M: Evaluating the relationship between arterial pressure changes and indices of pulse oximetric plethysmography. Anesth Analg 2002; 95:1686–90 36. Natalini G, Rosano A, Franceschetti ME, Facchetti P, Bernardini A: Variations in arterial blood pressure and photoplethysmography during mechanical ventilation. Anesth Analg 2006; 103:1182– 8 37. Solus-Biguenet H, Fleyfel M, Tavernier B, Kipnis E, Onimus J, Robin E, Lebuffe G, Decoene C, Pruvot FR, Vallet B: Noninvasive prediction of fluid responsiveness during major hepatic surgery. Br J Anaesth 2006; 97:808 –16 38. Wyffels PAH, Durnez P-J, Helderweirt J, Stockman WMA, De Kegel D: Ventilation-induced plethysmographic variations predict fluid responsiveness in ventilated postoperative patients. Anesth Analg 2007; 105:448–52 39. Landsverk SA, Hoiseth LO, Kvandal P, Hisdal J, Skare O, Kirkeboen KA: Poor agreement between respiratory variations in pulse oximetry photoplethysmographic waveform amplitude and pulse pressure in intensive care unit patients. ANESTHESIOLOGY 2008; 109:849 –55 40. Bijker JB, van Klei WA, Kappen TH, van Wolfswinkel L, Moons KGM, Kalkman CJ: Incidence of intraoperative hypotension as a function of chosen definition. ANESTHESIOLOGY 2007; 107:213–20