manometry


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manometry

[mə′näm·ə·trē]
(engineering)
The use of manometers to measure gas and vapor pressures.
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In various studies, it has been shown that 20% to 30% of patients with typical features of achalasia on barium studies have complete relaxation of the LES and, in some cases, normal LES resting pressures on manometry (Figure 4).
Clinical symptoms in esophageal achalasia are nonspecific; definitive diagnosis requires assessment with barium swallow exam and, in some cases, esophageal manometry. In barium swallow, the esophagus appears markedly dilated, the lower esophageal sphincter opens sporadically and, therefore, the barium contrast moves very slowly into the stomach.
A combination of high-resolution solid-state manometry and impedance study was done in each subject after a 6-hour fast.
The medical history of all participants was carefully recorded by one ENT doctor to obtain a reflux symptom index.[sup][17] A complete endoscopic examination of the upper-airway was performed by the same ENT doctor while the reflux finding scores of the patients were determined.[sup][2],[18] High-resolution impedance manometry was used to obtain a detailed evaluation of pharyngeal and esophageal motility, and the location of the upper esophageal sphincter (UES), and the lower esophageal sphincter (LES).
High-resolution manometry: It was performed using 16-channel pneumohydraulic water perfused catheter system with electronic pressure transducers manufactured by Royal Melbourne Hospital, Australia.
The diagnostic criteria for ES on esophageal manometry is simultaneous or rapid, prolonged (>6 seconds) contractions.
A study of the physiological variation in anal manometry. Br J Surg.
Diagnosis of AC was also based on at least one of other accessory examinations (esophageal manometry, barium esophagogram).
[sup][18] also reported that there is no relationship between preoperative manometry pressure changes and postoperative surgery outcome.
Ordering esophageal manometry would be the right choice if a dysmotility disorder were suspected; however, a recent-onset dysmotility disorder would be unusual in an aged individual and, in any case, it would typically present with both liquid and solid food dysphagia.
High-resolution manometry (HRM) revealed normal cricopharyngeal relaxation and upper esophageal motility but an absence of a distal esophageal peristaltic wave and lack of lower esophageal sphincter (LES) tone (figure).
BOSTON -- Patients who can't tolerate standard esophageal manometry may be able to undergo an alternative procedure known as endoscopically assisted water perfusion esophageal manometry, with results that are useful in guiding clinical management.