2021
DOI: 10.1053/j.jvca.2021.04.017
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Validation of Claims Data for the Identification of Intraoperative Transesophageal Echocardiography During Cardiac Surgery

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Cited by 8 publications
(4 citation statements)
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“…By creating matched pairs of 2 patients (1 with TEE vs 1 without TEE) admitted to the same hospital, and operated on by the same surgeon, we reduced hospital-level, and surgeon-level, unobserved confounding that could have biased our results. Third, in this study the exposure variable of TEE was found to be a true, intraoperative TEE; an improvement on our previous that could only identify a TEE within a hospitalization . Fourth, by performing comprehensive sensitivity analyses, we were able to quantify how much residual, unobserved confounding would be required to alter the conclusions of our analyses.…”
Section: Discussionmentioning
confidence: 93%
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“…By creating matched pairs of 2 patients (1 with TEE vs 1 without TEE) admitted to the same hospital, and operated on by the same surgeon, we reduced hospital-level, and surgeon-level, unobserved confounding that could have biased our results. Third, in this study the exposure variable of TEE was found to be a true, intraoperative TEE; an improvement on our previous that could only identify a TEE within a hospitalization . Fourth, by performing comprehensive sensitivity analyses, we were able to quantify how much residual, unobserved confounding would be required to alter the conclusions of our analyses.…”
Section: Discussionmentioning
confidence: 93%
“…Third, in this study the exposure variable of TEE was found to be a true, intraoperative TEE; an improvement on our previous that could only identify a TEE within a hospitalization. 15,16,32 Although this matched retrospective observational study cannot elucidate the exact reasons for the clinical outcomes benefit observed with intraoperative TEE, it is likely that intraoperative TEE is conferring some degree of benefit because the association persisted on the strict, within-hospital, within-surgeon matched comparisons. Diagnostic information provided by TEE, interpreted by an experienced echocardiographer-cardiologist or anesthesiologist-could identify surgical complications [5][6][7][8][9] and improve outcomes by facilitating informed intraoperative decision making by the cardiac surgeon.…”
Section: Discussionmentioning
confidence: 97%
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“…The exposure was TOE receipt within one calendar day of the index CABG surgery date. Used in previous studies 4 , 7 , 8 , 14 and validated as being 99.87% sensitive and 100% specific for the identification of TOE, 15 the following CPT codes were used to identify TOE: 93312–5; 93317–8; 93320–1; 93325.…”
Section: Methodsmentioning
confidence: 99%