PMID- 35372473 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220405 IS - 2296-875X (Print) IS - 2296-875X (Electronic) IS - 2296-875X (Linking) VI - 9 DP - 2022 TI - Applying High-Resolution Impedance Manometry for Detecting Swallowing Change in Anterior Cervical Spine Surgery Patients. PG - 851126 LID - 10.3389/fsurg.2022.851126 [doi] LID - 851126 AB - BACKGROUND: Objectively detecting perioperative swallowing changes is essential for differentiating the reporting of subjective trouble sensations in patients undergoing anterior cervical spine surgery (ACSS). Swallowing indicates the transmission of fluid boluses from the pharynx (velopharynx, oropharynx, and hypopharynx) through the upper esophageal sphincter (UES). Abnormal swallowing can reveal fluid accumulation at the pharynx, which increased the aspiration risk. However, objective evidence is limited. High-resolution impedance manometry (HRIM) was applied for an objective swallowing evaluation for a more detailed analysis. We aimed to elucidate whether HRIM can be used to detect perioperative swallowing changes in patients undergoing ACSS. METHODS: Fourteen patients undergoing elective ACSS underwent HRIM with the Dysphagia Short Questionnaire (DSQ, score: 0-18) preoperatively (PreOP), on postoperative at day 1 (POD1), and postoperative at day seven (POD7). We calculated hypopharyngeal and UES variables, including hypopharyngeal mean peak pressure (PeakP) and UES peak pressure, representing their contractility (normal range of PeakP, 69-280 mmHg; peak pressure, 149-548 mmHg). The velopharynx-to-tongue base contractile (VTI) was also calculated (normal range, 300-700 mmHg.s.cm), indicating contractility. The swallowing risk index (SRI) from HRIM combined with four hypopharyngeal parameters, including PeakP, represents the global swallowing function (normal range, 0-11). A higher SRI value indicated higher aspiration. RESULTS: SRI was significantly higher on POD1 (10.88 +/- 5.69) than PreOP (6.06 +/- 3.71) and POD7 (8.99 +/- 4.64). In all patients, PeakP was significantly lower on POD1 (61.8 +/- 18.0 mmHg) than PreOP (84.9 +/-34.7 mmHg) and on POD7 (75.3 +/- 23.4 mmHg). The UES peak pressure was significantly lower on POD1 (80.4 +/- 30.0 mmHg) than PreOP (112.9 +/- 49.3 mmHg) and on POD7 (105.6 +/- 59.1 mmHg). Other variables, including VTI, did not change significantly among the three time points. DSQ scores were 1.36, 3.43, and 2.36 at PreOP, POD1, and POD7 respectively. CONCLUSIONS: With similar trends in DSQ and SRI, swallowing was significantly decreased on POD1 because of decreased hypopharyngeal and UES contractility but recovered to the preoperative state on POD7 after ACSS. Applying HRIM is superior to DSQ in detecting mechanisms and monitoring the recovery from swallowing dysfunction. CLINICAL TRIAL REGISTRATION: The study was registered at ClinicalTrials.gov (NCT03891940). CI - Copyright (c) 2022 Lai, Cheng, Lai, Wu, Chang and Tsuang. FAU - Lai, Chih-Jun AU - Lai CJ AD - Institute of Epidemiology and Preventive Medicine, National Taiwan University, Taipei, Taiwan. AD - Department of Anesthesiology, National Taiwan University Hospital, Taipei, Taiwan. FAU - Cheng, Ya-Jung AU - Cheng YJ AD - Department of Anesthesiology, College of Medicine, National Taiwan University, Taipei, Taiwan. AD - Department of Anesthesiology, National Taiwan University Cancer Center, Taipei, Taiwan. FAU - Lai, Dar-Ming AU - Lai DM AD - Division of Neurosurgery, Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan. FAU - Wu, Chun-Yu AU - Wu CY AD - Department of Anesthesiology, National Taiwan University Hospital, Taipei, Taiwan. FAU - Chang, Wen-Ting AU - Chang WT AD - Department of Anesthesiology, National Taiwan University Hospital, Taipei, Taiwan. FAU - Tsuang, Fon-Yih AU - Tsuang FY AD - Division of Neurosurgery, Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan. LA - eng SI - ClinicalTrials.gov/NCT03891940 PT - Journal Article DEP - 20220316 PL - Switzerland TA - Front Surg JT - Frontiers in surgery JID - 101645127 PMC - PMC8965755 OTO - NOTNLM OT - anterior cervical spine surgery OT - high-resolution impedance manometry OT - hypopharynx OT - perioperative swallowing physiology OT - upper esophageal sphincter COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2022/04/05 06:00 MHDA- 2022/04/05 06:01 PMCR- 2022/03/16 CRDT- 2022/04/04 05:33 PHST- 2022/01/10 00:00 [received] PHST- 2022/02/16 00:00 [accepted] PHST- 2022/04/04 05:33 [entrez] PHST- 2022/04/05 06:00 [pubmed] PHST- 2022/04/05 06:01 [medline] PHST- 2022/03/16 00:00 [pmc-release] AID - 10.3389/fsurg.2022.851126 [doi] PST - epublish SO - Front Surg. 2022 Mar 16;9:851126. doi: 10.3389/fsurg.2022.851126. eCollection 2022.