OBJECTIVE: To assess the morbidity of temporal lobe epilepsy (TLE) surgery on a nationwide level in order to address reservations regarding the morbidity of anterior temporal lobectomy (ATL) for TLE despite class I evidence demonstrating the superiority of ATL over continued medical therapy. DESIGN: Retrospective cohort study. SETTING: The Nationwide Inpatient Sample from 1988 to 2003 was used for analysis. PATIENTS: Only patients who were admitted for ATL for TLE (International Classification of Diseases, Ninth Revision, Clinical Modification codes 345.41 and 345.51; primary procedure code, 01.53) were included. MAIN OUTCOME MEASURES: Morbidity and mortality. Analysis was adjusted for several variables including patient age, race, sex, admission type, primary payer for care, income in zip code of residence, and hospital volume of care. RESULTS: Multivariate analyses revealed that the overall morbidity (postoperative morbidity and/or adverse discharge disposition) following ATL for TLE was 10.8%, with no mortality. Private insurance decreased postoperative morbidity (odds ratio [OR] = 0.52; 95% confidence interval [CI] = 0.28-0.98; P = .04) and adverse discharge disposition (OR = 0.31; 95% CI = 0.12-0.81; P = .02). Increased patient age increased postoperative morbidity (OR = 1.04; 95% CI = 1.01-1.07; P = .03) and adverse discharge disposition (OR = 1.08; 95% CI = 1.02-1.13; P = .004). Neither sex, income, race, nor hospital volume was predictive of postoperative morbidity. The degree of medical comorbidity directly correlated with the incidence of postoperative morbidity. CONCLUSIONS: Morbidity following ATL for TLE is low throughout the United States regardless of sex, race, insurance status, or income. Younger age and private insurance status are independently predictive of reduced postoperative morbidity. In patients with low medical comorbidity, ATL for TLE is safe, with low morbidity and no mortality.
OBJECTIVE: To assess the morbidity of temporal lobe epilepsy (TLE) surgery on a nationwide level in order to address reservations regarding the morbidity of anterior temporal lobectomy (ATL) for TLE despite class I evidence demonstrating the superiority of ATL over continued medical therapy. DESIGN: Retrospective cohort study. SETTING: The Nationwide Inpatient Sample from 1988 to 2003 was used for analysis. PATIENTS: Only patients who were admitted for ATL for TLE (International Classification of Diseases, Ninth Revision, Clinical Modification codes 345.41 and 345.51; primary procedure code, 01.53) were included. MAIN OUTCOME MEASURES: Morbidity and mortality. Analysis was adjusted for several variables including patient age, race, sex, admission type, primary payer for care, income in zip code of residence, and hospital volume of care. RESULTS: Multivariate analyses revealed that the overall morbidity (postoperative morbidity and/or adverse discharge disposition) following ATL for TLE was 10.8%, with no mortality. Private insurance decreased postoperative morbidity (odds ratio [OR] = 0.52; 95% confidence interval [CI] = 0.28-0.98; P = .04) and adverse discharge disposition (OR = 0.31; 95% CI = 0.12-0.81; P = .02). Increased patient age increased postoperative morbidity (OR = 1.04; 95% CI = 1.01-1.07; P = .03) and adverse discharge disposition (OR = 1.08; 95% CI = 1.02-1.13; P = .004). Neither sex, income, race, nor hospital volume was predictive of postoperative morbidity. The degree of medical comorbidity directly correlated with the incidence of postoperative morbidity. CONCLUSIONS: Morbidity following ATL for TLE is low throughout the United States regardless of sex, race, insurance status, or income. Younger age and private insurance status are independently predictive of reduced postoperative morbidity. In patients with low medical comorbidity, ATL for TLE is safe, with low morbidity and no mortality.
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