RESUMEN
BACKGROUND: High-frequency jet ventilation (HFJV) has been used for the treatment of tracheal lesions, airway surgery, and treatment of secondary lesions after tracheostomy for many years however, reports on the use of HFJV during percutaneous dilatational tracheostomy (PDT) are limited. This study compares the use of traditional method, ventilation with laryngeal mask airway (LMA), and HFJV through endotracheal tube (ETT) with respect to the duration of PDT procedure and complications. METHODS: Seventy-five patients were randomized into one of the three groups with computer-generated random numbers: Group ETT (N.=25), group LMA (N.=25), and group HFJV (n=25). Demographic data, duration of PDT, complications such as ETT cuff puncture and tube transaction, accidental extubation, difficult cannula insertion, bleeding, desaturation during the procedure, arterial blood gases immediately before and after the procedure have been recorded. RESULTS: Mean time for successful PDT in group ETT was 5.9±1.35 minutes, in group LMA 4.96±0.78 minutes, and 3.88±0.78 minutes in group HFJV. PDT duration was shorter in the LMA group than in the ETT group (P<0.05). In the HFJV group, the PDT duration was shorter than the LMA group (P<0.05) and the ETT group (P<0.001). In terms of the total number of complications, significantly fewer complications were observed in the HFJV group compared with group ETT and group LMA. CONCLUSIONS: HFJV may be a more effective alternative method for airway management during PDT, facilitating and reducing the duration of the intervention.
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Ventilación con Chorro de Alta Frecuencia , Máscaras Laríngeas , Dilatación , Humanos , Intubación Intratraqueal/métodos , Traqueostomía/métodosRESUMEN
OBJECTIVE: To evaluate and compare the face mask (FM) and oral mask (OM) ventilation techniques during anesthesia emergence regarding tidal volume, leak volume, and difficult mask ventilation (DMV) incidence. DESIGN: Prospective, randomized, crossover study. SETTING: Operating room, training and research hospital. SUBJECTS: American Society of Anesthesiologists physical status I and II adult patients scheduled for nasal surgery. INTERVENTIONS: Patients in group FM-OM received FM ventilation first, followed by OM ventilation, and patients in group OM-FM received OM ventilation first, followed by FM ventilation, with spontaneous ventilation after deep extubation. The FM ventilation was applied with the 1-handed EC-clamp technique. The OM was placed only over the mouth, and the 1-handed EC-clamp technique was used again. A child's size FM was used for the OM ventilation technique, the mask was rotated, and the inferior part of the mask was placed toward the nose. MEASUREMENTS: The leak volume (MVleak), mean airway pressure (Pmean), and expired tidal volume (TVe) were assessed with each mask technique for 3 consecutive breaths. A mask ventilation grade ≥3 was considered DMV. MAIN RESULTS: DMV occurred more frequently during FM ventilation (75% with FM vs 8% with OM). In the FM-first sequence, the mean TVe was 249±61mL with the FM and 455±35mL with the OM (P=.0001), whereas in the OM-first sequence, it was 276±81mL with the FM and 409±37mL with the OM (P=.0001). Regardless of the order used, the OM technique significantly decreased the MVleak and increased the TVe when compared to the FM technique. CONCLUSION: During anesthesia emergence after nasal surgery the OM may offer an effective ventilation method as it decreases the incidence of DMV and the gas leak around the mask and provides higher tidal volume delivery compared with FM ventilation.
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Máscaras , Procedimientos Quírurgicos Nasales , Respiración Artificial/instrumentación , Adulto , Periodo de Recuperación de la Anestesia , Anestesia General/métodos , Estudios Cruzados , Femenino , Humanos , Masculino , Persona de Mediana Edad , Cuidados Posoperatorios/métodos , Estudios Prospectivos , Respiración Artificial/métodos , Volumen de Ventilación Pulmonar , Adulto JovenRESUMEN
BACKGROUND: The local anaesthetics used in day-case spinal anaesthesia should provide short recovery times. We aimed to compare hyperbaric prilocaine and bupivacaine in terms of sensory block resolution and time to home readiness in day-case spinal anaesthesia. MeTHODS: Fifty patients undergoing perianal surgery were randomized into two groups. The bupivacaine-fentanyl group (Group B) received 7.5 mg, 0.5% hyperbaric bupivacaine + 20 µg fentanyl in total 1.9 mL. The prilocaine-fentanyl group (Group P) received 30 mg, 0.5% hyperbaric prilocaine + 20 µg fentanyl in the same volume. RESULTS: Time to L1 block and maximum block was shorter in Group P than in Group B (Group P 4.6 ± 1.3 min versus Group B 5.9 ± 01.9 min, P = 0.017, and Group P 13.2 ± 7.5 min versus Group B 15.3 ± 6.6 min, P = 0.04). The time to L1 regression and S3 regression of the sensorial block was significantly shorter in Group P than in Group B (45.7 ± 21.9 min versus 59.7 ± 20.9 min, P = 0.024, and 133.8 ± 41.4 min versus 200.4 ± 64.8 min, P < 0.001). The mean time to home readiness was shorter for Group P than for Group B (155 ± 100.2 min versus 207.2 ± 62.7 min (P < 0.001)). CONCLUSION: Day-case spinal anaesthesia with hyperbaric prilocaine + fentanyl is superior to hyperbaric bupivacaine in terms of earlier sensory block resolution and home readiness and the surgical conditions are comparable for perianal surgery.
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Canal Anal/cirugía , Anestesia Raquidea/métodos , Anestésicos Locales , Bupivacaína , Fentanilo , Prilocaína , Adulto , Procedimientos Quirúrgicos Ambulatorios , Combinación de Medicamentos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Bloqueo Nervioso/métodosRESUMEN
BACKGROUND: The aim of this study was to investigate whether a supplemental dose of rectal paracetamol at the third or fourth hour would enhance the quality of analgesia provided by caudal epidural blockade in children. METHODS: Two hundred and two ASA I patients aged 1-12 years undergoing inguinal surgery were randomized into three groups in the postanesthesia care unit by drawing lots. Patients in the control group did not receive any analgesic until they had a pain score of 5 or higher, patients in the group P3 received rectal paracetamol (20-25 mg x kg(-1)) at the third hour, and patients in the group P4 received the same dose of rectal paracetamol at the fourth hour after caudal epidural injection. Pain was assessed by VAS (Visual Analog Scale) and supplementary rescue analgesic need was recorded. RESULTS: There was no difference between the demographic data or the duration and variety of surgery among the groups. A significantly lower number of patients required rescue analgesia at the sixth postoperative hour in group P3 and also lower pain scores were again obtained in group P3 at the sixth and eighth postoperative hours. CONCLUSIONS: Supplemental rectal paracetamol at the third hour of caudal blockade enhances the quality of postoperative analgesia better than its addition at the fourth hour in children undergoing inguinal surgery.