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Biomedical subjects

G N Morritt

Publications and source records attributed to G N Morritt.

4 recordsLinked to original sources

Palliation of malignant tracheal strictures using silicone T tubes.

The use of silicone T tubes for intubation of malignant tracheobronchial strictures may provide some degree of palliation of this distressing condition. It was used in seven patients with malignant lesions and two with benign strictures (resulting from tracheal trauma and lung transplantation). Four patients (two with cancer) are still alive and well with the tube in position. All patients noted improvement in dyspnoea and stridor. The main problems were tube migration (one patient), tracheo-oesophageal fistula (one patient), and blockage of the tube by tumour (two patients) or encrusted secretions (three patients). Airway patency was restored when the tube was blocked by cleaning or by laser resection of the tumour. With careful supervision and education of the patient intubation can give useful palliation to patients with distressing upper airways obstruction.

Adult

Severe and early stenosis of porcine heterograft mitral valve.

A patient who had aortic and mitral valves replaced by Carpentier porcine heterografts for bacterial endocarditis developed severe heart failure 18 days after operation. A second emergency operation revealed that the mitral prosthesis had become severely stenosed and calcified. A loud Graham Steell murmur had developed during the 12 hours before reoperation but no distinct murmurs of mitral stenosis had been detected.

Adult

Development of left ventricular--coronary sinus fistula following replacement of mitral valve prosthesis.

The features and course of a patient in whom a fistula developed between the left ventricle and the coronary sinus following replacement of a faulty mitral valve prosthesis are described. The subsequent deterioration of her condition was associated with a pansystolic murmur and periprosthetic regurgitation. Replacement by a third prosthesis was complicated in addition by tricuspid regurgitation. The fistula was not suspected until the fourth operation, when the right atrium was opened for tricuspid annuloplasty. The fistula was repaired successfully, and the woman has made good progress postoperatively.

Adult