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  • Title: Awake thoracoscopic bullaplasty.
    Author: Pompeo E, Tacconi F, Frasca L, Mineo TC.
    Journal: Eur J Cardiothorac Surg; 2011 Jun; 39(6):1012-7. PubMed ID: 20980159.
    Abstract:
    OBJECTIVE: Staple excision of emphysematous bullae through general anesthesia is the standard surgical treatment of bullous emphysema. We have developed a new surgical technique entailing thoracoscopic bullaplasty performed in fully awake patients through sole epidural anesthesia. METHODS: This prospective nonrandomized trial included 35 patients undergoing awake thoracoscopic bullaplasty between 2002 and 2009. Preoperative work-up included computed tomography with algorithm for quantitative measurement of the bulla volume. Outcome measures included patient's satisfaction with the anesthesia, scored into four grades (1=unsatisfactory; 4=excellent); ratio of arterial oxygen tension to fraction of inspired oxygen (PaO(2)/FiO(2)), and postoperative assessment of standard clinical measures at 6, 12, and 36 months. RESULTS: There were 29 men and six women with a median age of 60 years. Median volume of the bulla was 688 ml. Awake bullaplasty was successfully completed in 34 patients. Perioperatively, PaO(2)/FiAO(2) decreased significantly (analysis of variance (ANOVA), P<0.0001) though remaining satisfactory (>300 mmHg), whereas PaCO(2) increased intraoperatively (ANOVA, P<0.0001) but returned to baseline values 1h after surgery (P=0.20). There was no mortality; four patients had air leaks longer than 7 days. Mean hospital stay was 4.9 ± 2.2 days. Comparisons between pre- to 6-month changes in outcome measures showed improvements (P<0.0001) in forced expiratory volume in 1s (FEV(1)) (+0.37 l), residual volume (-1.16 l), dyspnea index (-2), and standard 6-min walk test (SMWT) (+71 m). These improvements lasted for up to 36 months and in no patient did operated bullae recur. CONCLUSION: Our study suggests that awake thoracoscopic bullaplasty was well tolerated and easily performed in the majority of the patients, and significant clinical improvements lasted for up to 36 months.
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