Journals / Türk Göğüs Kalp Damar Cerrahisi Dergisi / 2004 / Cilt: 12 - Sayı: 3

The impact of midazolam addition to fentanly anesthesia on awareness and sweating during rewarming in cardiac surgery

Kardiyak cerrahide fentaline midazolam eklenmesinin ısınma sırasındaki terleme ve farkında olma üzerine etkileri

Pages
211–214
Publication Date
2022-09-02
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

Conclusions: Our data suggest that addition of midazolam to fentanyl anaesthesia attenuates the awareness but not the rate and the degree of sweating.

📌 3 Key Takeaways

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Objective & Hypothesis:Background: Restoration of brain temperature during CPB rewarming may cause patient to sweat, and may result in inadequate depth of anaesthesia.
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Key Findings & Data:Anaesthetic induction was performed with fentanyl (30 g/kg, IV) (Group 1; n = 22), or fentanyl (20 g/kg; IV) and midazolam (0.1 mg/kg, IV) (Group 2; n = 22).
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Conclusion & Impact:Conclusions: Our data suggest that addition of midazolam to fentanyl anaesthesia attenuates the awareness but not the rate and the degree of sweating.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Background: Restoration of brain temperature during CPB rewarming may cause patient to sweat, and may result in inadequate depth of anaesthesia. The aim of this study was to investigate the possible correlation between sweating and awareness, and the effect of midazolam on both. Methods: Forty four nonpremedicated patients undergoing conventional cardiac surgery were allocated to the study. Anaesthetic induction was performed with fentanyl (30 g/kg, IV) (Group 1; n = 22), or fentanyl (20 g/kg; IV) and midazolam (0.1 mg/kg, IV) (Group 2; n = 22). Anaesthesia was maintained with fentanyl (0.1 _g kg-1 min-1, IV) and isoflurane (0.8%) within 100% oxygen in both groups. In the second group additional dose of midazolam (0.1 mg kg-1, IV) was given just before starting to rewarm the patient. Rectal temperature was monitored continuously and noted at lowest point, at highest point and every five minutes. Sweating was noted, starting with rewarming until the end of the rewarming period, scored from 0 to 3 (0 = no sweat, 1 = a little sweat on the forehead, 2 = sweat on forehead and in the face, 3 = widespread sweat in face, neck, and head). On the postoperative first day patients were tested for awareness. Groups were compared for both awareness and sweating, and any possible correlation between sweating and awareness was investigated. Results: Awareness was observed in 12 patients in Group 1, and two patients in Group 2, and this difference between groups was statistically significant. The rate of sweating was lower in Group 1 than Group 2 (63.55% and 81.82%, respectively), although the degree of sweating was higher in Group 2 (2.28 vs. 2, respectively). These differences were not statistically significant. There was no correlation between sweating and awareness. Conclusions: Our data suggest that addition of midazolam to fentanyl anaesthesia attenuates the awareness but not the rate and the degree of sweating.

Özet

Amaç: Kardiyopulmoner bypassın ısınma döneminde hastalarda sıklıkla terleme görülmekte ve farkında olma riski artmaktadır. Bu çalışmada, fentanil ve izofluran anestezisi uygulanmış kardiyak cerrahi olgularında, anesteziye midazolam eklenmesinin ısınma döneminde görülen terleme ile farkında olma üzerine olan etkilerinin ve bu iki parametre arasındaki olası korelasyonun araştırılması amaçlandı. Materyal ve Metod: Açık kalp ameliyatı uygulanacak 44 olgu. Grup l [fentanil grubu (n = 22)] ve Grup 2 [midazolam grubu (n = 22)] olarak rasgele 2 gruba ayrıldı. Grup l olgularında fentanil (30 mg/kg, İV), Grup 2 olgularında ise midazolam (0.1 mg/kg, İ.V.) ve fentanil (20 g/kg, İV) ile indüksiyon sağlandı. İdamede her iki grupta fentanil infüzyonu (0.1 mg/kg/dak) ve %100 oksijen içinde %0.8 konsantrasyonunda izofluran uygulandı. Grup 2'de ısınma başlangıcında hastaya ek midazolam (0.1 mg/kg, İV) yapıldı. Isınma süresi, oda ısısı, ısınma periyodu boyunca her beş dakikada bir rektal ısı ve terleme miktarı (O = terleme yok, l = alında ter, 2 = alında ve yüzde ter, 3 = yüz, boyun ve saçlı deride yaygın ter) her iki grupta kaydedildi. Postoperatif birinci günde farkında olma testi yapıldı. Gruplar terleme ve farkında olma açısından karşılaştırıldı ve terleme ile farkında olma arasındaki korelasyon araştırıldı. Bulgular: Isınma sırasında fentanil grubunda 14 olguda (%63.55) (derecesi 2.28), midazolam grubunda 18 olguda (derecesi 2) terleme gözlendi, ancak bu fark anlamlı bulunmadı. Grup l'de 12 olguda, Group 2'de iki olguda farkında olma kaydedildi ve gruplar arası karşılaştırmada bu fark anlamlı idi (p 0.05). Sonuç: Kardiyak cerrahide, ısınma sırasında görülen terleme ile farkında olma arasında korelasyon olmadığı, fentanil ve izofluran anestezisine midazolam ilavesinin farkında olmayı azalttığı, ancak terleme derecesini etkilemediği kanısına varıldı.

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Cite This Article

DAĞLAR, B., ÜSTÜNSOY, H., KAZAZ, H., CELKAN, M. A., ÖNER, Ü., GÖKSU, S., TUTAK, A., KOÇOĞLU, H. (2022). The impact of midazolam addition to fentanly anesthesia on awareness and sweating during rewarming in cardiac surgery. Türk Göğüs Kalp Damar Cerrahisi Dergisi, Cilt: 12 - Sayı: 3, 211–214. https://ajindex.com/articles/425365

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References (17)

  1. Shanewise JS, Hug CC. Anesthesia for adult cardiac surgery. In: Miller RD, ed. Anesthesia Philadelphia: Churchill Livingstone, 2000:1753-804
  2. Mangano CM, Hill L, Cartwright CR, Hindman BJ. Cardiopulmonary bypass and the anesthesiologist. In: Kaplan JA (ed). Cardiac Anesthesia. Philadelphia: WB Saunders Company, 1999:1061-110
  3. Stoen R, Sessler DI. The thermoregulatory threshold is inversely proportional to isoflurane concentration. Anesthesiology 1990;72:822-7
  4. Kayhan Z. Klinik Anestezi. İstanbul: Logos Yayıncılık; 1997:31-48
  5. Kayhan Z. Klinik Anestezi. İstanbul: Logos Yayıncılık; 1997:291-306
  6. Hanhela R, Mustonen A, Korhonen I, Salomaki T. The effects of two rewarming strategies on heat balance and metabolism after coronary artery bypass surgery with moderate hypothermia. Acta Anaesthesiol Scand 1999;43:979-88
  7. Washington DE, Sessler DI, Moayeri A, et al. Thermoregulatory responses to hyperthermia during isoflurane anesthesia in humans. J Appl Physiol 1993;74:82 7
  8. Sladen RN, Berend JZ, Sessler DI. Rewarming and sweating during cardiopulmonary bypass. J Cardiothorac Vasc Anesth 1994;8:45-50
  9. Shanks CA, Wade LD, Meyer R, Wilkinson CJ. Changes of body temperature and heat in cardiac surgical patients. Anaesth Intensive Care 1985;13:12-7
  10. Nordstrom O, Engstrom AM, Persson S, Sandin R. Incidence of awareness in total IV anaesthesia based on propofol, alfentanil and neuromuscular blockade. Acta Anaesthesiol Scand 1997, 41:978-84
  11. Ranta SO, Laurila R, Saario J, Ali-Melkkila T, Hynynen M. Awareness with recall during general anesthesia: incidence and risk factors. Anesth Analg 1998;86:1084-9
  12. Liu WH, Thorp TA, Graham SG, Aitkenhead AR. Incidence of awareness with recall during general anaesthesia. Anaesthesia 1991;46:435-7
  13. Myles PS, Williams DL, Hendrata M, Anderson H, Weeks AM. Patient satisfaction after anaesthesia and surgery: Results of a prospective survey of 10,811 patients. Br J Anaesth 2000;84:6-10
  14. Mark JB, Greenberg LM. Intraoperative awareness and hypertensive crisis during high-dose fentanyl-diazepam oxygen anesthesia. Anesth Analg 1983;62:698 700
  15. Nordström O, Sandin R. Recall during intermittent propofol anaesthesia. Br J Anaesth 1996;76:699-701
  16. Bovill JG, Boer FB. Opioids in cardiac anesthesia. In: Kaplan JA, ed. Cardiac Anesthesia. Philadelphia: WB Saunders Company, 1999;573-609
  17. Vuylsteke A, Djaiani G, Kneeshaw J, Bethune DW. Amnesic awareness during cardiac surgery: Cimparison of three