Feasibility of laryngeal mask anesthesia combined with nerve block in adult patients undergoing internal fixation of rib fractures: a prospective observational study

Table 1 Demographics and clinical characteristics of the patients

Variable	N	Mean	%
Sex (male/female)	13/7
Age(y)	35–70	54.15 ± 8.67
BMI (kg/m ²)	19.1–29.7	24.29 ± 2.75
Flail chest	6		30
Hemothorax and/or pneumothorax	10		50
Atelectasis	5		25
Pulmonary contusion	2		10
Thoracic drainage placed in surgery	9		45
Duration of surgery (min)		70 ± 21

ISSN: 1471-2253