What question did this study set out to answer?

To evaluate the concordance between predicted postoperative forced expiratory volume in 1 second calculated from preoperative surgical plans versus calculations based on the actual surgical procedure performed.

May 12, 2003Interactive Cardiovascular and Thoracic SurgeryOpen Access

Discordance between predicted postoperative forced expiratory volumes in one second (ppoFEV1) calculated before and after resection of bronchogenic carcinoma

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Authors

GVGonzálo VarelaUniversidad de Salamanca MJMarcelo F. JiménezUniversidad de Salamanca NNNuria NovoaHospital Universitario Puerta de Hierro Majadahonda

Discussion

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Implication

Prospective study reveals discordance between scheduled and actual postoperative lung function predictions in lung cancer patients, indicating potential underestimation of surgical risk.

Key Points

To evaluate the concordance between predicted postoperative forced expiratory volume in 1 second calculated from preoperative surgical plans versus calculations based on the actual surgical procedure performed.
Prospective evaluation of 66 consecutive patients with bronchogenic carcinoma (33 central and 33 peripheral tumors) scheduled for lobectomy (n=55) or pneumonectomy (n=11).
Calculated predicted postoperative forced expiratory volume in 1 second twice: ppoFEV1-A based on the scheduled procedure and ppoFEV1-B based on the final completed surgery (43 lobectomies and 23 pneumonectomies).
Discrepancies between scheduled and actual postoperative predictions occurred in 18 of 66 cases (27.3%), with 12 occurring in central tumors.
Actual predicted volume (ppoFEV1-B) dropped below 40% in 3 patients (4.5% of the overall cohort), which altered their preoperative surgical risk category.
The Pearson correlation coefficient between planned and actual values was 0.85 overall (P<0.001), 0.83 for central tumors (P<0.001), and 0.87 for peripheral tumors (P<0.001), with multiple regression yielding R² = 0.76.

Cite This Study

Varela et al. (2003) studied this question.

synapsesocial.com/papers/6a9131bc9cd0eb66ad33f2e2 https://doi.org/10.1016/s1569-9293(02)00121-4

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Implication

Prospective study reveals discordance between scheduled and actual postoperative lung function predictions in lung cancer patients, indicating potential underestimation of surgical risk.

Discordance between predicted postoperative forced expiratory volumes in one second (ppoFEV1) calculated before and after resection of bronchogenic carcinoma

Discussion

Member takes

Implication

Key Points

Cite This Study

Discordance between predicted postoperative forced expiratory volumes in one second (ppoFEV1) calculated before and after resection of bronchogenic carcinoma

Discussion

Member takes

Implication

Key Points

Cite This Study

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