New Prospective for the Management of Low-Risk Pulmonary Embolism: Prognostic Assessment, Early Discharge, and Single-Drug Therapy with New Oral Anticoagulants

Table 1

PESI (pulmonary embolism severity index).

Predictors	Points assigned	Risk class		Points
Age	Age, in yr	I	Very low	≤65
Male sex	+10	II	Low	66–85
Cancer	+30	III	Intermediate	86–105
Heart failure	+10	IV	High	106–125
Chronic lung disease	+10	V	Very high	≥126
Pulse ≥110/min	+20
Systolic blood pressure <100 mmHg	+30
Respiratory rate ≥30/min	+20	I-II	Low	≤85
Temperature <36°C	+20	III–V	High	>85
Altered mental status^†	+60
Arterial blood oxygen saturation <90%^∣∣	+20

^†Defined as disorientation, lethargy, stupor, or coma.
^∣∣With and without the administration of supplemental oxygen.