Question
During subclavian vein puncture in a surgical ward suddenly a patient developed severe breathlessness. On auscultation breath sound was absent and the ipsilateral chest was tympanitic on percussion. The probable diagnosis is:
The correct answer is
Iatrogenic pneumothorax
Subclavian Puncture Complication Diagnosis
Clinical Presentation Analysis
- Procedure Context: The patient underwent a subclavian vein puncture.
- Acute Symptoms: Sudden onset of severe breathlessness was noted.
- Physical Examination: Auscultation revealed absent breath sounds on the affected side (ipsilateral), and percussion elicited a tympanic note.
Symptom Interpretation
- Absent breath sounds suggest a lack of air entry into the lung on the affected side, possibly due to lung collapse.
- A tympanic note on percussion is characteristic of the presence of air in the pleural space, distinguishing it from fluid (which causes dullness).
- Severe breathlessness is a direct result of the compromised respiratory function.
Differential Diagnosis Reasoning
- Iatrogenic Pneumothorax: This occurs when a medical procedure, like subclavian vein puncture, accidentally causes the lung to collapse due to air entering the pleural space. The symptoms described (breathlessness, absent breath sounds, tympany) are classic signs. It is 'iatrogenic' because it was caused by medical intervention.
- Iatrogenic Hemothorax: While possible from vessel injury during the procedure, hemothorax (blood in the pleural space) typically causes dullness on percussion, not tympany.
- Spontaneous Pneumothorax: This type occurs without an obvious external cause or preceding event. It is unlikely here as the complication arose during a specific medical procedure.
- Tension Pneumothorax: This is a severe, life-threatening form of pneumothorax where air pressure builds up, shifting structures in the chest. While iatrogenic pneumothorax can progress to tension pneumothorax, the initial diagnosis based on the described signs and cause is simply iatrogenic pneumothorax.
Conclusion
The combination of the procedure (subclavian vein puncture) and the clinical findings (sudden breathlessness, absent breath sounds, tympanic percussion) strongly indicates that the lung was punctured, leading to air in the pleural space. Therefore, the most probable diagnosis is iatrogenic pneumothorax.
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Important Questions from Chest & Lung Surgery
- Left Internal Mammary Artery (LIMA) has become the conduit of choice for Left Anterior Descending (LAD) artery during coronary artery bypass grafting because:
- A 50-year old male with significant smoking history presented in the surgical emergency with sudden severe breathlessness. Chest X-ray shows right sided Pneumothorax. The appropriate management requires:
- A 50 year old male presented with pain along the left arm and ptosis. His chest X-ray showed soft tissue opacity at the apex of the left lung along with the erosion of the adjacent rib. The probable diagnosis is:
- Which of the following are the Indications for lung transplantation?
1. Emphysema
2. Primary pulmonary hypertension
3. Obliterative bronchiolitis
Select the correct answer using the code given below: - A patient of road traffic accident presents to the emergency with increasing restlessness and difficulty in breathing. The respiratory rate is 26 breaths/minute; there are distended neck veins; trachea is deviated to the right side with hyper-resonant note and absence of breath sounds on the left side. Which of the following statements are correct?
1. The most probable clinical diagno-sis is left tension pneumothorax
2. Immediate chest decompression using wide bore cannula in left second intercostal space should be done
3. Immediate chest X-ray should be done to confirm the clinical diagnosis
4. Definitive chest tube insertion in left fifth intercostal space should be done
Select the correct answer using the code given below :
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