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Table 1 Previously reported cases of transient remission of pre-existing left bundle branch block during general anesthesia

From: Transient remission of pre-existing left bundle branch block during general anesthesia in a centenarian

References

Age/sex

Comorbidities

Surgical procedure

Induction agents

Maintenance agents

Elapsed time from anesthesia induction to LBBB remission (min)

Situation at LBBB reappearance

Suspected cause of remission

Garcia et al. (1997) [2]

58/M

Hypertension

Inguinal hernia repair

Thiopental

Enflurane

15

Sustained remission*

Blood pressure reduction

Fentanyl

Nitrous oxide

Suxamethonium

Atracurium

Mishra et al. (2009) [3]

45/F

Hypertension

Mastectomy

Propofol

Isoflurane

25†

On reversal of neuromuscular block

Heart rate reduction (< 60 bpm)

Fentanyl

Nitrous oxide

Vecuronium

Silva et al. (2017) [4]

73/F

Hypertension, bronchial asthma, diabetes mellitus (type II)

Exploratory laparotomy

Propofol

Sevoflurane

30‡

On arrival in the PACU

Heart rate reduction (< 75 bpm)

Remifentanil

Remifentanil

Rocuronium

Present case

104/F

Hypertension, chronic heart failure, cognitive impairment

Femoral neck fracture fixation

Propofol

Desflurane

20

During the extubation period

Blood pressure reduction

Remifentanil

Fentanyl

Remifentanil

Rocuronium

  1. LBBB left bundle branch block, M male, F female, PACU postanesthesia care unit
  2. *Sustained remission was reconfirmed 1 month postoperatively
  3. †LBBB disappeared again for 10 min during postoperative observation for 1 h
  4. ‡Bronchospasm occurred during induction of anesthesia and was successfully treated with inhalation of salbutamol and ipratropium