Pneumothorax is a common injury in Road traffic accidents. Traditionally pneumothorax needs an intercostal drainage. Here in this case series we have reported 3 cases of traumatic pneumothorax which was managed without ICD with our multidisciplinary approach.
Pneumothorax refers to the presence of air in the pleural space, leading to partial or complete lung collapse. Intercostal drainage (tube thoracostomy) is the standard treatment for many traumatic pneumothoraces, particularly those that are large or associated with hemodynamic/respiratory compromise; however, recent data support conservative strategies for small or occult pneumothoraces in selected patients, and small-bore percutaneous catheters (pigtails) are effective alternatives when intervention is required(1). Careful patient selection, oxygen therapy to hasten reabsorption, and close ICU monitoring allow avoidance of ICD-related complications in appropriate cases.
A 36 years old male presents to ER with alleged history of RTA, hit by a 4 wheeler while he was driving a 2 wheeler. He was conscious and hemodynamically stable at arrival in ER. He sustained injuries over his neck and left chest. CT chest and cervical spine reveal left pneumothorax with fracture of 3rd and 4th ribs, CT cervical spine reveal fractures of C4 and C5 vertebra without any cord compression. He was managed in ICU with cervical collar, analgesics and supplemental oxygen. Chest X-ray taken on 24 and 48 hrs later showed improving pneumothorax. He was discharged on day 5 with soft cervical collar and oral analgesics
A 40 years old female presents to ER with alleged history of hit by 2 wheeler, sustained injury over right chest. She was hemodynamically stable on arrival. CT chest reveal right pneumothorax with fracture of 4th and 5th ribs. She was admitted in ICU for further management. She was treated with analgesics and supplemental oxygen. Chest xray done on day 1 and day 2 revealed resolving pneumothorax. She was discharged on day 4 with oral analgesics.
A 26 years old male presents to ER with alleged history of RTA 2 wheeler Vs 2 wheeler. He sustained injuries over chest, abdomen and left lower limb. CT chest revealed fracture of right 3rd, 4th and 5th ribs with pneumothorax and hemothorax. CT abdomen revealed liver laceration with hemoperitoneum without any active contrast extravasation. CT left lower limb revealed open fracture of distal femur and proximal tibia. He was taken for emergency left femur plating with tibial nailing under GA. He was ventilated with low tidal volume ventilation. He was extubated and shifted to ICU. Chest xray on arrival to ICU revealed no worsening of pneumothorax. He was managed with blood transfusion, analgesics and supplemental oxygen. Dressing for left leg wound was done on regular basis. His haemoglobin was monitored. Chest X-ray was done every 24 hrs till day 3 revealed improving pneumothorax. He was gradually shifted to ward on day 5
In traumatic pneumothorax, air enters due to disruption of the visceral or parietal pleura following blunt or penetrating chest trauma. The primary mechanisms are rupture of alveoli secondary to sudden increases in intra-alveolar pressure or direct pleural injury by fractured ribs. Depending on severity, pneumothorax can be simple, tension, or occult (detected only on CT scan).In trauma patients, occult pneumothorax (OPTX) is increasingly recognized due to widespread use of thoracic CT. OPTX incidence ranges between 2–10% in blunt trauma cases, and many are small and clinically insignificant(2).
The Advanced Trauma Life Support (ATLS) guidelines traditionally recommend intercostal drain (ICD) placement for any traumatic pneumothorax, especially in patients requiring positive-pressure ventilation(3). This approach was based on the risk of sudden progression to tension pneumothorax, which can be fatal if not immediately relieved. However, invasive drainage carries risks like infection, pain, hemorrhage, and malposition, with reported complication rates up to 25–30% in some series.
Recent studies have questioned the necessity of routine ICD placement in all trauma patients with small or moderate pneumothoraces. With the availability of advanced imaging and continuous ICU monitoring, conservative (non-interventional) management has gained acceptance for selected stable patients. Walker et al. (2018) observed that over 80% of traumatic pneumothoraces <20% in size resolved spontaneously without intervention under careful observation(4). Similarly, a 2021 meta-analysis by Smith et al. found that up to 85% of occult pneumothoraces managed conservatively did not require subsequent drainage, even when some patients received mechanical ventilation(5).
The key determinants for selecting conservative management are(6):
In our cases, all criteria were met, making conservative management feasible.
High-concentration oxygen therapy plays a critical role in noninterventional management. By reducing the partial pressure of nitrogen in alveoli, oxygen creates a diffusion gradient that facilitates faster reabsorption of intrapleural air. Studies demonstrate that 100% oxygen can accelerate resolution fourfold compared to room air(7).
Close surveillance through serial imaging and clinical assessment is vital. Chest X-rays at 6–12-hour intervals in the first 24–48 hours are recommended. Bedside lung ultrasound is a sensitive tool for detecting changes in pneumothorax size and early recurrence, offering real-time, radiation-free monitoring in the ICU.
In our cases, no progression was seen on serial radiographs, confirming the safety of conservative management.
While ICD remains lifesaving in unstable or large pneumothoraces, it is not without risk. Complications such as infection (5–10%), tube blockage, malposition, subcutaneous emphysema, and lung injury can prolong ICU stay. The introduction of small-bore pigtail catheters (8–14 Fr) offers a less invasive alternative with equivalent efficacy for air evacuation and fewer complications(8).
However, even these minimally invasive options can be avoided if the patient remains stable — as demonstrated in our cases.
Conservative management in mechanically ventilated patients remains controversial. Positive-pressure ventilation increases intrathoracic pressure and may enlarge a pneumothorax, risking tension physiology. Nevertheless, recent studies have shown that low-tidal-volume, lung-protective ventilation can be safely used in stable patients with small pneumothoraces under vigilant monitoring.
One of our cases has been successfully ventilated and extubated for surgery without ICD
Most small traumatic pneumothoraces resolve within 3–5 days with oxygen therapy and rest. Discharge is considered when(9):
Our patients satisfied all these parameters and they were discharged.
Despite emerging evidence, conservative management carries inherent risks:
Hence, strict patient selection, documented escalation plan, and multidisciplinary involvement (ICU, trauma surgery, pulmonology) are crucial.
Conservative management of traumatic pneumothorax in the ICU – without intercostal drain — is a safe and effective option for carefully selected, hemodynamically stable patients. Adequate oxygenation, analgesia, imaging surveillance, and readiness for immediate intervention are critical to success. The approach aligns with the evolving evidence base favoring minimal invasiveness and individualized critical care.
Dr.Dhineshraj 2nd Year DrNB Critical Care Postgraduate, Kauvery Hospital, Alwarpet, Chennai.
Dr.Muralidharan Consultant Intensivist – Critical Care Medicine, Kauvery Hospital, Alwarpet, Chennai.
