Comparison of an implantable telemetry device and an oscillometric monitor for measurement of blood pressure in anaesthetized and unrestrained green iguanas (Iguana iguana)

Chinnadurai, Sathya K.; DeVoe, Ryan S.; Koenig, Amie; Gadsen, Nadia; Ardente, Amanda J.; Divers, Stephen J.

doi:10.1111/j.1467-2995.2010.00557.x

Cited by 24 publications

(2 citation statements)

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“…This observation agrees with other studies utilizing oscillometric blood pressure devices in birds 25,27,33 and green iguanas. 34 Similar to results found in red-tailed hawks, 25 the error percentage in the present study was highest during hypertension (55.6%) and lowest during hypotension (12.5%). Increased error readings were likely observed during hypertension, as these values were beyond the upper limit of measurement for the NIBP-O monitor used in our study (150 mmHg) resulting in error messages.…”

Section: Discussionsupporting

confidence: 89%

Cuff size, cuff placement, blood pressure state, and monitoring technique can influence indirect arterial blood pressure monitoring in anesthetized bats (Pteropus vampyrus)

Paranjape

Gatson

Bailey

et al. 2023

ajvr

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OBJECTIVE Evaluate agreement between 2 non-invasive blood pressure (NIBP) techniques and invasive arterial blood pressure (IBP) in anesthetized bats using various cuff sizes and cuff positioning while also evaluating its performance during hypertension and hypotension. ANIMALS 8 bats (1.1 ± 0.2 kg). PROCEDURES Bats were anesthetized with isoflurane in oxygen. NIBP was measured using oscillometric (NIBP-O) and Doppler (NIBP-D) techniques in the pectoral limb (PEC) and pelvic limbs (PEL) using 3 cuff sizes (1, 2, and 3). NIBP measurements were compared with IBP; systolic (SAPinvasive), mean (MAPinvasive), and diastolic arterial blood pressure (DAPinvasive) during normotension, hypertension, and hypotension. Hypotension was induced with isoflurane (3.8 ± 1.2%) and hypertension with norepinephrine (3 ± 0.5 µg/kg/min). Data analysis included Bland-Altman analyses and 3-way ANOVA. Results were reported as mean bias (95% CI). RESULTS NIBP-O monitor reported 29% errors, and experienced more failures with hypertension, cuff placement on PEC, and using a size 1 cuff. Across states, an agreement between NIBP-D and MAPinvasive with cuff 2 on PEL (−3 mmHg [−8, 1]), and NIBP-D and SAPinvasive with cuff 3 on PEC (2 mmHg [−5, 9 mmHg]) was achieved. NIBP-D over-estimated SAPinvasive and MAPinvasive during hypertension in both limbs with cuffs 1 and 2. Except during hypotension, NIBP-O underestimated MAPinvasive and DAPinvasive using a size 2 cuff on PEL. CLINICAL RELEVANCE In anesthetized bats, NIBP-O is unreliable for estimating IBP. NIBP-D shows acceptable agreement with MAPinvasive with cuff size 2 on PEL, and with SAPinvasive with cuff size 3 on PEC across a wide range of IBP values.

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Section: Discussionsupporting

confidence: 89%

Cuff size, cuff placement, blood pressure state, and monitoring technique can influence indirect arterial blood pressure monitoring in anesthetized bats (Pteropus vampyrus)

Paranjape

Gatson

Bailey

et al. 2023

ajvr

View full text Add to dashboard Cite

show abstract

“…Every year tags shrink in size and are used for more diverse purposes (e.g., Gräns et al ; Meyer & Holland ; Williams et al ) as well as species (e.g., Australian giant cuttlefish [ Sepia alpama ] [Payne et al ]). Sensor tags can also be used to build and improve on existing research and data collection protocols, particularly in species that are difficult to observe directly in the wild (Chinnadurai et al ; McFarland et al ). As such, sensor tags present a valuable opportunity to link behavior, physiology, and ecology in wild animals (Whitney et al ) as well as provide new insights on trophic ecology and ecological processes (Kays et al ).…”

Section: Realizing the Potential Of Sensor Tagsmentioning

confidence: 99%