Khaled Al-Kattan

Pulmonary Retransplantation: Predictors of Graft Function and Survival in 230 Patients

BACKGROUND Despite improving results in lung transplantation, a significant number of grafts fail early or late postoperatively. The pulmonary retransplant registry was founded in 1991 to determine the predictors of outcome after retransplantation. We hypothesized that ambulatory status of the recipient and center retransplant volume, which had been previously shown to predict survival after retransplantation, would also be associated with improved graft function postoperatively. METHODS Two hundred thirty patients underwent retransplantation in 47 centers from 1985 to 1996. Logistic regression methods were used to determine variables associated with, and predictive of, survival and lung function after retransplantation. RESULTS Kaplan-Meier survival was 47% +/- 3%, 40% +/- 3%, and 33% +/- 4% at 1, 2, and 3 years, respectively. On multivariable analysis, the predictors of survival included ambulatory status or lack of ventilator support preoperatively (p = 0.005; odds ratio, 1.62; 95% confidence interval, 1.15 to 2.27), followed by retransplantation after 1991 (p = 0.048; odds ratio, 1.41; 95% confidence interval, 1.003 to 1.99). Ambulatory, nonventilated patients undergoing retransplantation after 1991 had a 1-year survival of 64% +/- 5% versus 33% +/- 4% for nonambulatory, ventilated recipients. Eighty-one percent, 70%, 62%, and 56% of survivors were free of bronchiolitis obliterans syndrome at 1, 2, 3, and 4 years after retransplantation, respectively. Factors associated with freedom from stage 3 (severe) bronchiolitis obliterans syndrome at 2 years after retransplantation included an interval between transplants greater than 2 years (p = 0.01), the lack of ventilatory support before retransplantation (p = 0.03), increasing retransplant experience within each center (fifth and higher retransplant patient, p = 0.04), and total center volume of five or more retransplant operations (p = 0.05). CONCLUSIONS Nonambulatory, ventilated patients should not be considered for retransplantation with the same priority as other candidates. The best intermediate-term functional results occurred in more experienced centers, in nonventilated patients, and in patients undergoing retransplantation more than 2 years after their first transplant. In view of the scarcity of lung donors, patient selection for retransplantation should remain strict and should be guided by the outcome data reviewed in this article.

Disease recurrence after resection for stage I lung cancer

OBJECTIVE To asses the incidence of local recurrence and distant metastases after complete resection for stage I lung cancer in order to predict the predominant prognostic factors. METHODS We retrospectively reviewed 123 patients with stage I lung cancer who underwent curative resection over a 2-year period between January 1987 and December 1988. There were 83 male and 40 female patients with a mean age of 64.8 +/- 12 years (range between 39 and 82 years). Multivariate analysis of prognostic factors for long term survival was undertaken. RESULTS T1N0 lesions were found in 34 patients and T2N0 in 89. The histological diagnosis was Squamous carcinoma in 75, Adenocarcinoma in 38, large cell carcinoma in 6 and small cell carcinoma in 4 patients. Pneumonectomy was performed in 27 patients (5 T1 and 22 T2) while 96 required lobectomy (29 T1 and 67 T2). At 5 years 50 patients died. This was due to local recurrence in 12, distant metastasis in 24, second primary in 1, unrelated disease in 3, while the cause was unknown in 10 patients. At 5 years, 10 patients were alive with evidence of recurrence. The mean interval for local recurrence was 19.8 months and for distant metastasis was 18 months. The overall 5 year survival was 67% +/- 4 for T1 and 56% +/- 5 for T2 lesions (NS). The rate of recurrence was significantly less for T1 lesions (P = 0.02). Survival was significantly less for patients requiring pneumonectomy rather than lobectomy (P = 0.01) whether for T1 or T2. CONCLUSION In stage I lung cancer T2 lesions requiring pneumonectomy for complete resection had a worse prognosis and higher incidence of local recurrence.

Bronchopleural fistula after pneumonectomy for lung cancer

Bronchopleural fistula (BPF) after pneumonectomy is a life-threatening complication. Over a period of 14 years (January 1980 to November 1993), 471 pneumonectomies were performed byone surgical team using a uniform suture technique for primary lung cancer. Non-small cell lung cancer accounted for 451 cases and 20 cases were small cell cancer. All operations were performed using a uniform hand suture technique. There were seven cases of BPF giving an incidence of 1.5%. All fistulas occurred within 15 days postoperatively and there were no late fistulas. The bronchial stump was free of tumor in all cases. No fistula occurred in the 24 (5.1%) completion pneumonectomies. The experience of the surgeon was important as the senior author performed 374 pneumonectomies with two fistulas (0.5%) while other surgeons in training performed 97 pneumonectomies with five fistulas (5.1%). Bronchial dehiscence was confirmed by bronchoscopy in all cases and an attempt at resuturing the stump through the same thoracotomy incision was made within 2 days of the diagnosis. Closure was successful in five patients, while the other two developed fatal complications. We conclude that suture closure to the bronchial stump after pneumonectomy provides a cheap and reliable technique, it is applicable in all situations and can be taught to surgeons in training with an acceptable risk.

Bronchopleural fistula after pneumonectomy with a hand suture technique

We have reviewed the incidence of bronchopleural fistula among 530 consecutive pneumonectomies, all carried out by one surgical team using a uniform suture technique between January 1980 and November 1993. There were 7 fistulas (1.3%); all of them occurred within 15 days postoperatively. There were no cases of late fistula during a mean follow-up period of 23 months. The pathology for which pneumonectomy was undertaken was primary lung malignancies in 488 cases (92.1%), metastatic disease in 15 cases (2.8%), and benign diseases in 27 cases (5.1%). All fistulas developed after pneumonectomy for lung cancer. Other risk factors included age, preoperative radiotherapy, and the surgeons level of experience, as only two fistulas occurred with the consultant who performed 410 pneumonectomies (0.5%). The bronchial stump was free of tumor in all cases. There were no fistulas in the 37 completion pneumonectomies (7%). All fistulas were treated within 2 days of diagnosis by resuturing the stump through the initial thoracotomy incision. That was successful in 5 patients, whereas fatal complications developed in the other 2 patients. We believe that suture closure of the bronchial stump at pneumonectomy provides a cheap and reliable technique that gives good results in all situations.

Current Surgical Therapy for Bronchiectasis

Abstract. The ideal classification system for bronchiectasis continues to be debated. As an alternative to the present morphologic classification, a hemodynamic-based functional classification is proposed. This study examines the rationale for and outcome of surgery based on this classification in patients with unilateral or bilateral bronchiectasis. Between July 1987 and January 1997 the morphologic and hemodynamic features in 85 bronchiectatic patients were examined: 18 with bilateral bronchiectasis and 67 with unilateral disease. A policy of unilateral lung resection of the nonperfused bronchiectasis and preservation of the perfused type was adopted in all patients. The mean age at operation was 29.4 ± 9.7 years (range 6–55 years) with a mean follow-up period of 45.2 ± 21.0 months (range 2–120 months). Left-sided predominance of bronchiectasis was evident in this series both in frequency and severity. In those with unilateral disease, bronchiectasis was left-sided in 49 (73.1%) patients and right-sided in 18 (26.9%). The left lung was totally bronchiectatic in 11 (16.4%) patients and the right in 3 (4.4%). Moreover, among the patients with bilateral bronchiectasis, 14 of 18 (77.7%) patients had the left lung more severely involved. Based on the morphologic and hemodynamic features in the investigated patients, two types of bronchiectasis were recognized: a perfused type with intact pulmonary artery flow and a nonperfused type with absent pulmonary artery flow. Lobectomy was performed in 55 patients, basal segmentectomy and preservation of the apical segment in 16, and pneumonectomy in 14. There was no mortality in this series. Altogether 63 patients (74.1%) achieved excellent results, 19 (22.4%) scored good results, and 3 (3.5%) patients had not benefited from surgery at last follow-up. In the face of the general criticism of the traditional morphologic classification, the proposed classification not only predicts whether the involved lung will have a measure of respiratory function with regard to gas exchange but reflects the degree of severity of the disease process. Thus the question of which side to resect and which to preserve is defined more precisely. This classification was found to be logical, physiologically sound, and of proven benefit.

Soft-tissue reconstruction in thoracic surgery

BACKGROUND Reconstructive techniques using omental and myocutaneous flaps are widely used in the treatment of infected sternotomy wounds. To illustrate their wider role in thoracic reconstruction, we have retrospectively reviewed our experience over the last 5 years. METHODS We used complex omental and myocutaneous flaps in 30 patients: 19 men and 11 women with a mean age of 53 +/- 4 years (range, 43 to 75 years). In 18 patients, these techniques were used to provide soft-tissue cover after chest wall resection, and in 12 cases complex myocutaneous flaps were used to obliterate chronic intrathoracic cavities. Rectus muscle was used in 11 of 24 muscle flaps, and omentum was used in 12 cases. There were 23 rotational flaps and seven free myocutaneous flaps with microvascular anastomosis. RESULTS There were no operative deaths, and there were three complications. In 2 patients with infected lesions, loss of the free flap required subsequent revision. In 1 patient, infection developed underneath a prosthesis, which was treated with drainage and rib resection. In all other cases, the primary aim of the operation was achieved without complications. CONCLUSIONS The vascularity of the omentum should encourage its wider use, especially when infection exists preoperatively. Excellent results can be achieved when using the rectus muscle as a complex myocutaneous flap. The use of free flaps should be reserved for difficult cases and used only in the absence of infection.

Completion pneumonectomy: Indications and outcome

Completion pneumonectomy has been associated with higher rates of morbidity and mortality and this is reflected in the selection of cases and the indications for the procedure. During a period of 14 years from January 1980 to November 1993, 38 completion pneumonectomies were done by our surgical team, representing 5.1% of all pneumonectomies. There were 24 right and 14 left completion pneumonectomies done in 26 male and 12 female patients with an average age of 61 years (range from 29 to 77 years). Lung malignancy accounted for 26 of these cases in which the indication included local recurrence in 10, second primary tumor in 9, malignancy that developed after resection for benign disease in 2, and pulmonary metastasectomy in 5 cases. Benign diseases were the indication in 12 cases: tuberculosis in 4, bronchiectasis in 4, aspergillosis in 1, and postoperative complications in 3. Additional surgical procedures were necessary in 7 cases: chest wall resection with insertion of prosthesis in 3, thoracoplasty in 2, and omental flap in 2. There was 1 early postoperative death after 5 weeks from adult respiratory distress syndrome. There was no occurrence of bronchopleural fistula, and the 18% associated morbidity rate was a result of bleeding necessitating reexploration in 3 cases, prolonged ventilation in 2, and chronic empyema in 2. Six of these complications (86%) occurred in the group with benign disease. Completion pneumonectomy can be done with an acceptable morbidity in selected patients. Careful technique is important to secure hemostasis and to avoid fistulas. The complication rate is higher when infective disease is involved.

Unusual presentation of rib exostosis

We report two cases of unusual presentation of rib exostosis. The first patient presented acutely with hemorrhagic shock due to massive hemothorax, and the second patient presented with repetitive chest infection complicated by empyema. In both patients, preoperative computed tomographic (CT) scan of the chest revealed rib exostoses, necessitating thoracotomy and rib resection.

Surgery for pulmonary aspergilloma in post-tuberculous vs. immuno-compromised patients

OBJECTIVE To compare the outcome of surgical resection for aspergilloma between patients with post-tuberculous complex and neutropenia. METHODS We retrospectively reviewed our surgical experience with pulmonary resection for aspergilloma in 30 patients. Of the 20 patients with complex aspergilloma complicating healed tuberculosis (group 1), 14 were male and six were female with an average age of 54 years (SD 7). The indication for surgery was recurrent haemoptysis in all and there were 17 lobectomies, two pneumonectomies and one bilateral lobectomy. There were ten patients with acute myeloid or lymphoid leukemia (group 2), six male and four female with an average age of 26 years (SD 4). Twelve lesions required lobectomy in eight and wedge excision in four. RESULTS In group 1 there was one post-operative death (5%), in a patient with massive haemoptysis and completely destroyed lungs with bilateral upper lobe aspergilloma secondary to pneumonia. Morbidity accounted for 25% (five patients), two required re-exploration for bleeding, two had prolonged air leak more than 7 days and one developed empyema. The later was treated with drainage and rib resection. One patient had recurrence of haemoptysis during the follow up period (mean 42 months). In group 2 there was no mortality or morbidity and six patients proceeded to bone marrow transplantation with no complication or recurrence. CONCLUSIONS Surgical resection for pulmonary aspergilloma in selected patients provides the best chance of cure. Pulmonary resection for post-tuberculous complex aspergilloma is associated with higher morbidity than resection for immuno-compromised patients.

Maximal thymectomy in children with myasthenia gravis

OBJECTIVES We performed this study to evaluate the benefit of thymectomy in children with myasthenia gravis (MG). METHODS Over a period of 15 years from 1986 to 2001, we collected data on 30 children with MG and retrospectively reviewed the outcome of maximal thymectomy. RESULTS There were 23 females and seven males with a mean age of 13.2 years (range 4-16). The mean duration of the disease was 19.3 months (range 2-144). According to Osserman classification, there were 14 children in class II; 12 in class III; and four children in class IV. One child in class IV required postoperative ventilation and one was re-explored to drain a pericardial effusion secondary to central line leak. We found ectopic thymic tissue in 10 cases (33.3%). During a mean follow-up period of 53.5 months (range 9-180), complete remission was noted in 13 children (43.4%) and improvement in 14 (46.6%). The remaining three children (10%) did not improve following surgery. Univariate analysis (P < 0.05) showed that ectopic thymic tissue is a significant prognostic factor for outcome. CONCLUSION Maximal thymectomy appears to provide a high rate of remission and improvement in children with MG. However, the presence of ectopic thymic tissue has poor prognostic value.