A new expandable venous cannula for minimal access heart surgery

Mueller, Xavier M.; Tevaearai, Hendrik T.; Jochheim, David; Horisberger, Judith; Mucciolo, Giuseppe; Segesser, Ludwig Karl von

doi:10.1016/s0003-4975(02)03963-2

Cited by 21 publications

(19 citation statements)

References 5 publications

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“…Furthermore, remote venous cannulation with self-expanding cannulas provides similar flows as central cannulation. As a matter of fact the pump flows achieved in this consecutive series of adult patients are in 97% on or above target (mean 113%), and as a result, augmentation using centrifugal pumps or vacuum is unnecessary as previously reported for randomized experimental studies [3,8] and smaller series for specific indications [4,5,9]. It has also been shown previously in a study comparing self-expanding cannulas (access orifice 30 F) to classic two-stage cannulas (access orifice 48 F), that blood flows more than 10% above the target of 2.4 l/m 2 can be achieved without additional blood trauma [6].…”

Section: Discussionmentioning

confidence: 56%

Routine use of self-expanding venous cannulas for cardiopulmonary bypass: benefits and pitfalls in 100 consecutive cases☆

Segesser¹,

Ferrari²,

Delay³

et al. 2008

European Journal of Cardio-Thoracic Surgery

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Section: Discussionmentioning

confidence: 56%

Routine use of self-expanding venous cannulas for cardiopulmonary bypass: benefits and pitfalls in 100 consecutive cases☆

Segesser¹,

Ferrari²,

Delay³

et al. 2008

European Journal of Cardio-Thoracic Surgery

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“…1 Of course, this new technique involves some difficulties for the surgeon such as reduced operative field and restricted access to the cannulation sites. 5,6 However, the design of this cannula ( Fig. A femoral venous cannulation is often used for this process.…”

mentioning

confidence: 99%

“…A femoral venous cannulation is often used for this process. 3,4,6 The target blood flow can be difficult to reach with a percutaneous cannula, which can lead to a problem such as vessel chattering, as reported in Toomasian and McCarthy's 3 study. 5,6 However, the design of this cannula ( Fig.…”

mentioning

confidence: 99%

Performance Increase in Venous Drainage for Mini-Invasive Heart Surgery: Superiority of Self-Expanding Cannulas

Belkoniene

Abdel-Sayed

Favre

et al. 2014

Innovations�(Phila)

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Objective Originally, the Smartcanula principle (collapsed insertion and expansion in situ) was developed for venous drainage by gravity. However, in minimally invasive surgery, augmentation with either constrained force vortex pumps or vacuum is often used. The current study was set up to assess whether smaller diameters of self-expanding venous cannulas are sufficient in conjunction with venous drainage augmentation resulting in smaller access orifices. Methods To evaluate cannulas intended for cardiopulmonary bypass, an in vitro circuit was set up with silicone tubing between the test cannula encased in a lower reservoir, the centrifugal pump, and after an upper reservoir. Afterload was set arbitrarily at 60 mm Hg using a centrifugal pump. The pressure value was measured using Millar pressure transducers. Flow rate (Q) was measured using an ultrasonic flow meter calibrated with volume tank and timer. Revolutions per minute of the centrifugal pump were calibrated with a stroboscope. Data display and data recording were controlled using a Lab View application. Self-expanding (24F Smartcanula) and control (25F Biomedicus) cannulas were used. Results Sixty measurements were recorded. At pump speed of 1500, 1570, 2000, 2500, and 3000 rpm, the Q values were 3.6, 5.2, 6.6, 9.3, and 11.8 L/min for the 24F self-expanding cannula and 3, 4.3, 5.4, 7.5, and 9.3 L/min for the control cannula. The pressure values were 3.6, −5.4, −15.9, −45.3, and 80.6 mm Hg. Biomedicus 25F showed Q values from 16% to 19% less as compared with 24F Smartcanula. The pressure values were 6, 7, 4, 2, and 2 times more as compared with 24F Smartcanula. Conclusions Our experimental evaluation demonstrated the superior performance of the Smartcanula with its self-expanding design in comparison with the reference commercially available standard cannulas. The Smartcanula with its small diameter is particularly welcome for minimally invasive surgery.

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“…This phenomenon was complemented by performing in vivo animal testing with the SC exhibiting a 20% greater flow rate capacity during passive and active venous drainage techniques [20]. Similar findings were encountered by Mueller et al [21] in a parallel bovine experiment. Undertaking clinical comparisons is difficult as once theoretical flow is attained, it is also maintained.…”

Section: Discussionmentioning

confidence: 90%

A novel technique using echocardiography to evaluate venous cannula performance perioperatively in CPB cardiac surgery

Jochheim

Chassot

Bernath

et al. 2006

European Journal of Cardio-Thoracic Surgery

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A new expandable venous cannula for minimal access heart surgery

Cited by 21 publications

References 5 publications

Routine use of self-expanding venous cannulas for cardiopulmonary bypass: benefits and pitfalls in 100 consecutive cases☆

Routine use of self-expanding venous cannulas for cardiopulmonary bypass: benefits and pitfalls in 100 consecutive cases☆

Performance Increase in Venous Drainage for Mini-Invasive Heart Surgery: Superiority of Self-Expanding Cannulas

A novel technique using echocardiography to evaluate venous cannula performance perioperatively in CPB cardiac surgery

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