. 2015 Oct;35(4):265–271.

Table II.

Symptom of FB injury.

Source	Study type	No. of cases/ No. of included studies	Anatomical location	Symptoms				Asymptomatic
Source	Study type	No. of cases/ No. of included studies	Anatomical location	Gastrointestinal	Respiratory	Pain	Others	Asymptomatic
Jayachandra et al. ¹³	Systematic review	17 articles, corresponding to 5559 cases	Digestive tract	7 studies: Vomiting 6 studies: Dysphagia 4 studies: Drooling 2 studies: Gagging 1 study: Fluid intolerance	2 studies: Choking	1 study: Odynophagia 1 study: Retrosternal pain 2 studies: Pain (not specified)		2 studies
Rybojad et al. ¹⁴	Retrospective study	192 cases were reviewed, a FB was retrieved in 163 cases	First, Second and Third narrowing of oesophagus	First narrowing: 34 Drooling 34 Vomiting 33 Dysphagia Second narrowing: 12 Drooling 13 Vomiting 24 Dysphagia Third narrowing: 2 Drooling 3 Vomiting 8 Dysphagia		First narrowing: 6 pain cases Second narrowing: 9 pain cases Third narrowing: 12 cases
Balci et al., 2004 ²⁴	Retrospective study	1116 cases	Oesophagus	512 (45.9%) Drooling 298 (26.7%) Dysphagia 12 (1.1%) Vomiting	89 (8%) Wheezing 45 (4%) Respiratory Infection 19 (1.7%) Hemoptysis 11 (1%) Choking/cyanosis 2 (0.2%) Pneumonia	97 (8.7%) Cervical pain 26 (2.3%) Chest pain	4 (0.3%) Fever 1 (0.08%) Anorexia
Chinski et al., 2010 ¹⁶	Prospective study	320 cases	Oesophagus	92 (28.7%) Vomiting 38 (11.86%) Sialorrhoea 31 (9.69%) Ptyalism 28 (8.75%) Dysphagia		75 (23.4%) Odynophagia		47 (14.69%)
Foltran et al., 2012 ⁸	Meta-analysis	174 articles, corresponding to 30,477 cases	Airways	96 Vomiting	12,605 Cough 5947 Choking 4507 Dyspnoea 73 Voice hoarsens 59 Blood stained mucus	111 Throat pain 43 Thoracic pain	1970 Fever 15 Unconsciousness	109
Lea et al., 2005 ²⁵	Prospective study	98 cases with suspected FB, in 56 FB was found	Airways		76.8% Choking 14.3% Cough 3.6% Dyspnoea 1.8% Pneumonia