Role of Surgery in the Diagnosis and Management of Tuberculosis

Tuberculous empyema necessitans: Case report of a rare occurrence

Empyema necessitans is a rare condition where tuberculosis is the most common cause. It can be found in both immunocompromised and immunocompetent patients, especially in endemic areas. We report a case of a 29-year-old male from North Africa, with an enlarging mass on the right thoracic wall. Imaging, particularly CT showed a cystic lesion in the right chest wall communicating with homolateral pleural effusion, compatible with empyema necessitans. It also showed patterns of pulmonary tuberculosis in the right upper lung. Treatment of empyema necessitans is a combination of medical and surgicaltreatment. Our patient underwent a surgical treatment consisting of flattening of the empyema with a Gene X-pert study of the fluid and the shell, followed by an anti-TB treatment. Anatomopathology confirmed the diagnosis of caseo-follicular tuberculosis.

Prediction of the Complication Risk in Drug-Resistant Tuberculosis After Surgery: Development and Assessment of a Novel Nomogram

Background: Surgery is increasingly accepted as an adjunctive approach to treat multidrug-resistant tuberculosis (MDR-TB) or extensively drug-resistant tuberculosis (XDR-TB). However, a model that includes all factors to predict the risk of postoperative complications is lacking.

Methods: We developed a prediction model based on 138 patients who had undergone surgery as treatment for drug-resistant tuberculosis (DR-TB) after 24 months. Clinical features on the lesion type (L), treatment history (T), physiologic status of the body (B), and surgical approach (S) were evaluated. Multivariable logistic regression analysis was conducted by clinical features selected in the least absolute shrinkage and selection operator (LASSO) to build a nomogram. The discrimination, calibration, and clinical usefulness of the nomogram were assessed using the C-Index, calibration plots, and decision curves. Internal validation was assessed using bootstrapping.

Results: The nomogram contained the features L, B, T, cavitary, recurrent chest infection (RCI) and MDR-TB/XDR-TB. The model displayed good discrimination with a C-Index of 0.879 (95% CI: 0.799–0.967). A high C-Index of 0.824 was achieved in the interval validation. Decision-curve analysis showed that the nomogram was clinically useful if intervention was decided at the non-adherence possibility threshold of 4%.

Conclusion: Our novel nomogram could be used conveniently to predict postoperative complication risk in DR-TB patients.

Tuberculosis: mother of thoracic surgery then and now, past and prospectives: a review

Knowledge on ontogenesis of thoracic surgery is essential not only for understanding present concepts and debates on surgery for tuberculosis, but it also contributes to the further developments in operative treatment of lung cancer. Both diseases have been the leading cause of death in their respective ages. History of tuberculosis follows the classic algorithm: diagnostic, casuistic and therapeutical stages. Villemin followed by Virchow, and, finally, Koch revealed the pathoanatomy and the cause of tuberculosis. The therapeutic phase of lung cancer has been reached without identified cause of the disease. Chest surgery, eradication of the macroscopic focus by physical interference with the involved tissue mass, in both diseases preceded medical treatment. Identification of phenotypes of lung cancer-if it is a single disease at all-does not contravene the concept: the tumor mass should been eliminated. However, causation is not an absolute sine qua non of an effective treatment, as the tuberculosis-lung cancer analogy also proves. Surgical approach of both diseases suffered from the same paraoxon: eradication without direct interference with the causative factor. While lung cancer seems to be controlled by an emerging array of new drugs, tuberculosis poses a new challenge, as multidrug resistant and extensively drug resistant Koch bacteria are emerging and fragile societies' immunity is weakening. Thoracic surgery has a significant share in the fight against tuberculosis, when drugs and/or society fail. Palliative and radical adjuvant surgery multiplies the chance of cure in those cases, where not much hope is left. The jury is still out in a series of questions, but it is obvious, that surgery is only an option and not a panacea where medicines and their providers fail. Deeper understanding of our past and present failures with tuberculosis and its surgery might contribute to new concepts in coping with lung cancer as well.