Predicted postoperative FEV1 following lung resection surgery (anatomic method)

 

Input
 

Preop FEV1		L fL mL
Y		# index none number points score
Z		# index none number points score

 

Result
 

PPO FEV1		L fL mL
Decimal Precision   0 1 2 3

 

 

Notes

• PPO FEV₁ is the predicted postoperative forced expiratory volume at one second.
• Y is the number of functional or unobstructed lung segments to be removed.
• Z is the total number of functional segments (typically 19).

 
Equations used
 

PPO FEV1 = Preop FEV1 * (1 - Y/Z)

 

 

References

1. Brunelli A, Kim AW, Berger KI, Addrizzo-Harris DJ. Physiologic evaluation of the patient with lung cancer being considered for resectional surgery: Diagnosis and management of lung cancer, 3rd ed: American College of Chest Physicians evidence-based clinical practice guidelines. Chest. 2013 May;143(5 Suppl):e166S-90S. doi: 10.1378/chest.12-2395. PubMed ID: 23649437