The impact of preoperative anxiety, depression, and chronic pain on outcomes in abdominal wall reconstruction.

PURPOSE: An association of anxiety with surgical outcomes has been suggested, including with open ventral hernia repair (OVHR). This study examines the interaction of multiple comorbidities, including anxiety, depression, chronic pain, and hernia characteristics with outcomes after OVHR. METHODS: Patients with anxiety were identified in an existing, prospectively collected, data set of OVHR with preoperative work-up including CT scans (2007-2018). A patient with a diagnosis or prescription for anxiolytics, anti-depressants, or narcotics was considered to have anxiety, depression, or chronic pain, respectively. Hernia characteristics were analyzed using 3D volumetric software. Univariate and multivariate analyses were performed to assess for the impact of anxiety on surgical outcomes. RESULTS: A total of 1178 OVHRs were identified. The diagnosis of anxiety (23.9%) was associated with female gender (29.1% females vs. 16.9% males, p = 0.002), depression (56.7 vs. 18.8%, p < 0.0001), preoperative chronic pain (43.6 vs. 26.9%, p < 0.0001), COPD, arrhythmia, history of MRSA, and sleep apnea (p ≤ 0.05 all values). Patients with anxiety had larger hernia volume and defect size, and were more likely to undergo component separation, with higher rates of wound complication and intervention for pain (p ≤ 0.05 all values). After multivariate analysis controlling for multiple potentially confounding factors, the comorbidities of anxiety, depression, and preoperative chronic pain were not found to be significantly associated with adverse outcomes. CONCLUSIONS: The diagnosis of anxiety is associated with preoperative comorbidity, surgical complexity, and adverse outcomes after OVHR. However, when comorbidities are controlled for, the diagnosis of anxiety, depression or preoperative pain does not independently predict adverse outcomes. In this context, anxiety may be considered a marker of patient comorbidity in a complex patient population.

Measurement of lingual and palatine somatosensory evoked potentials.

OBJECTIVE: A technique is presented for generating and recording lingual and palatine nerve somatosensory evoked potentials (SEPs). METHODS: Pairs of thin, stainless steel disk electrodes were mounted onto mandibular or maxillary acrylic splints, similar to orthodontic retainers. Mandibular splint electrodes were oriented to contact the under surface of the tongue along the course of the right and left lingual nerves and maxillary splint electrodes were oriented to contact the hard palate bilaterally along the course of the palatine nerves. SEP recording electrodes were placed on the scalp 1 cm posterior to C5 and C6 (C5' and C6', respectively) using the combinatorial nomenclature of the International 10-20 system. Two reference electrode locations, Fz and C5' or C6', over the cortical hemisphere opposite that of the recording electrode, were used. RESULTS: Right and left lingual and palatine nerve SEPs were recorded from five normal adults. SEP latencies were similar to the N13 and P18 cortical peak latencies recorded in previous studies of trigeminal nerve branches to the lips regardless of reference electrode position. CONCLUSIONS: A more precise method of stimulating the intraoral lingual and palatine nerves was accomplished using dental splints. SEPs were easier to obtain using a contralateral cortex reference electrode location.