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Controlled sedation with midazolam and analgesia with nalbuphine to alleviate pain in patients undergoing subcutaneous implantable cardioverter defibrillator implantation

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Abstract

Purpose

Subcutaneous implantable cardioverter defibrillator (S-ICD) is an alternative to transvenous ICD to prevent sudden cardiac death. Subcutaneous ICD implantation frequently requires general anesthesia because of procedure nociceptive steps during creation of a large device pocket and lead tunneling. This study aims to determine if a strategy of operator-guided controlled sedation with midazolam and analgesia with nalbuphine is effective in alleviating pain during S-ICD implantation.

Methods

This prospective study included consecutive patients undergoing S-ICD implantation under controlled sedation with midazolam and combined analgesia with nalbuphine. The Critical-Care Pain Observation Tool (CPOT), a behavioral pain scale, was used for pain assessment during S-ICD placement and the Numeric Rate Scale (NRS) was used for evaluation of pain recollection after patient recovery. CPOT score of 3 or above and NRS score of 4 or above are considered to be associated with significant pain.

Results

Sixteen patients were included in this study: Ten men (62.5%) and six women with a mean age of 54 ± 11 years. Indication for S-ICD implantation was primary prevention in 11 patients (68.8%). Mean dose of administrated midazolam and nalbuphine was 0.11 ± 0.03 and 0.27 ± 0.05 mg/kg, respectively. Mean CPOT during the whole procedure was 1.4 ± 1.6. No patient presented procedural pain recollection as all 16 patients had NRS score less than 4. No serious adverse event related to sedation occurred during S-ICD implantation.

Conclusions

This study suggests that operator-guided controlled sedation with midazolam and analgesia with nalbuphine is effective to alleviate procedural pain in patients undergoing S-ICD implantation and may constitute an alternative to general anesthesia.

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Abbreviations

S-ICD:

Subcutaneous implantable cardiovertor defibrillator

T-ICD:

Transvenous implantable cardiovertor defibrillator

CS:

Controlled sedation

CPOT:

Critical-Care Pain Observation Tool

NRS:

Numerical Rating Scale

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Authors and Affiliations

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Correspondence to Michaël Peyrol.

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Conflict of interest

Dr. Michael Peyrol received Honoraria from Boston Scientific for speaking at symposia (<5000 USD).

Funding

None.

Ethical approval

This study complies with the Declaration of Helsinki. The research protocol was approved by the Research Ethical Committee of Aix-Marseille University.

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Peyrol, M., Barraud, J., Cautela, J. et al. Controlled sedation with midazolam and analgesia with nalbuphine to alleviate pain in patients undergoing subcutaneous implantable cardioverter defibrillator implantation. J Interv Card Electrophysiol 49, 191–196 (2017). https://doi.org/10.1007/s10840-017-0255-5

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  • DOI: https://doi.org/10.1007/s10840-017-0255-5

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