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Departments of *Anesthesiology and
Surgery, Hôpital Robert Debré, Paris, France
Address correspondence and reprint requests to Giovanni Cucchiaro, MD, Départément dAnesthésie et Réanimation, Hôpital Robert, Debré, 48 Boulevard Sérurier, 75019 Paris, France.
| Introduction |
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We present three case reports in which conscious neonates at high anesthetic risk because of prematurity, low birth weight, or associated pulmonary diseases underwent intraabdominal operations that used single-dose caudal anesthesia as their principle anesthetic.
| Case Reports |
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Case 1
A 2.3-kg female infant, delivered by cesarean section at 35 wk of gestation, was diagnosed with Donohue syndrome (leprechaunism) and atrial septal defect, and she had a right ovarian cyst that was resected under general anesthesia on Day 15 of life. The patient required 6 h of postoperative ventilatory support followed by a 24-h stay in the neonatal intensive care unit (NICU) for control of severe postoperative apnea and hypoxemia. The histologic examination revealed a granulosa cell tumor of the ovary. Five weeks later, while in the NICU (weight 2.5 kg) for severe anemia requiring multiple transfusions and for right upper-lobe pneumonia, she was diagnosed with a left ovarian mass. The patient was receiving total parenteral nutrition and was tachycardic, tachypneic, and oxygen dependent. An echocardiogram showed persistent atrial septal defect with ventricular septal hypertrophy. Caudal anesthesia was performed as described above. Motor block of the lower extremities was observed after 10 min. Because of the compromised general conditions of the patient, who had minimal-to-no reaction to skin pinch, it was impossible to properly evaluate the level of the sensory block. The ovariectomy was done through a Pfannenstiel (transverse-suprapubic) incision, and the surgical procedure lasted 25 min. Oxygen 1 L/min was given via face mask. No supplemental analgesia or sedation was necessary. Motor functions recovered 130 min after the block. The patient did not require postoperative analgesia, and because of her compromised general conditions, she returned to the NICU 3 h after the operation. The patient died 4 wk later of metastatic disease.
Case 2
A 2-mo-old boy, born at 29 wk of gestation (weight at birth 1.1 kg), required a laparotomy for acute intestinal obstruction. The patient had severe respiratory distress syndrome at birth; this required surfactant replacement therapy. He subsequently developed bronchopulmonary dysplasia and required prolonged mechanical ventilation. He also developed necrotizing enterocolitis, which resolved after 2 wk of total parenteral nutrition and broad-spectrum antibiotics. Caudal anesthesia was performed as previously described. A lower-extremities motor block was observed after 8 min, and the sensory level seemed to be at a T2-3 level. After a median incision from the pubis to the umbilicus, a stenosis of the ileocecal junction was discovered. Resection and ileocecal anastomoses were then performed. The operation lasted 110 min. The motor block had resolved by the time the patient was brought to the recovery room. Paracetamol (30 mg/kg) and nalbuphine (200 µg/kg) were started 10 h later and continued for 72 h. The patient was sent to a regular floor 2 h later with an apnea monitor.
Case 3
A 3.4-kg baby girl, born at 39 wk of gestation, was diagnosed with an ovarian cyst at 33 wk of gestation. A radiogram of the abdomen done at birth showed a coincidental small right pneumothorax, which was evacuated with a needle. Three hours later, she was brought to the operating room. Caudal anesthesia was performed as previously described. A lower-extremities motor block was obtained 9 min later, and the sensory level seemed to be at T3-5. After a Pfannenstiel incision, an intestinal duplication was discovered. Resection and ileoileal anastomoses were then performed. The operation lasted 90 min, and the patient did not require further analgesia or anesthesia. The motor block had resolved by the time the patient was brought to the recovery room. The postoperative course was uneventful. The first doses of propacetamol (30 mg/kg) and nalbuphine (200 µg/kg) were given 8 h after the caudal block. Both medications were continued for 48 h.
| Discussion |
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The use of single-dose caudal anesthesia in conscious neonates has been previously reported only for extraabdominal operations, inguinal hernia repair, and urologic (1,6) and anorectal procedures (7). Several authors have described the use of spinal anesthesia with tetracaine for prolonged intraabdominal operations (8,9). However, tetracaine is not commercially available in France, and the duration of surgical anesthesia after subarachnoid bupivacaine varies between 70 and 84 minutes (10). We felt that this might be too short for potentially complex intraabdominal procedures, and we preferred to use a caudal block. We used doses and concentrations that have been shown to provide adequate anesthesia for up to 150 minutes (3), at least during extraabdominal operations. There are few reports on the use of a combined spinal and epidural technique to obtain a prolonged surgical anesthesia and for postoperative pain control (11,12). However, clonidine, because of its effects on both the intensity and quality of analgesia (13,14), might obviate the need for a caudal catheter, with the potential associated risks (15,16). We used a large dose of bupivacaine (3.75 mg/kg). However, there are clinical data indicating that the plasma levels of bupivacaine, after a single caudal administration of 3.253.7 mg/kg in children, are well below 4 µg/mL, which is considered to be toxic (17,18).
Postoperative monitoring for apnea is imperative in this group of patients, regardless of the anesthetic technique used but particularly after the use of clonidine (1921). Further studies are needed to demonstrate the clinical advantages of this technique compared with spinal or general anesthesia in this patient population.
| Footnotes |
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| References |
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This article has been cited by other articles:
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T. Uejima, S. Suresh, and G. Cucchiaro Is 0.375% Bupivacaine Safe in Caudal Anesthesia in Neonates and Young Infants? * Response Anesth. Analg., April 1, 2002; 94(4): 1041 - 1041. [Full Text] [PDF] |
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