Paul P. Possenti

Intra-abdominal hypertension and abdominal compartment syndrome in burn patients.

BACKGROUND Intra-abdominal hypertension (IAH) and abdominal compartment syndrome (ACS) are known to occur in patients after major abdominal surgery. The incidence of IAH and ACS in the burn population is not known. METHODS We prospectively recorded the intra-abdominal pressures of major burn patients admitted to our burn center from February 1999 to September 1999. A bladder pressure greater than 25 mm Hg was diagnosed as IAH. ACS was diagnosed when pulmonary compliance decreased in association with persistent IAH and was treated with abdominal decompression. RESULTS Ten patients were placed on the protocol; of these, seven developed IAH. Five responded to conservative treatment. Two patients with 80% body surface area burns developed ACS and required decompression. CONCLUSIONS IAH occurs commonly in major burn patients, and ACS is seen regularly in patients with more than 70% body surface area burns. We recommend bladder pressure measurements after infusion of more than 0.25 L/kg during the acute resuscitation phase and for peak inspiratory pressures greater than 40 cm H2O. Whereas ACS warrants surgical decompression of the abdominal cavity, IAH usually responds to conservative therapy.

Abdominal Compartment Syndrome in Patients With Burns

Abdominal compartment syndrome (ACS) is a well-recognized perioperative complication that occurs in patients who undergo intra-abdominal operations and who require extensive fluid resuscitation. The classic presentation of this syndrome includes high peak airway pressures; oliguria, despite adequate filling pressures; and intra-abdominal pressures of more than 25 mm Hg. A decompressive laparotomy performed at the bedside can alleviate ACS. If left untreated, sustained intra-abdominal hypertension is often fatal. In the literature, ACS has been described in pediatric patients with burns but not in adult patients with burns. This article describes 3 adults who sustained burns of more than 70% of their body surface areas, who required more than 20 L of crystalloid resuscitation, and who developed ACS during their resuscitation after the burn injury. The mortality rate among these patients was 100%, which confirms the grave consequences of this syndrome. In our institution, intra-abdominal pressure is now routinely measured as part of the burn resuscitation process in an attempt to diagnose and treat this syndrome earlier and more efficaciously. It is recommended that the possibility of ACS be considered when diagnosing any patient with burns who develops high airway pressures, oliguria, or both.

Dilatational percutaneous tracheostomy : Modification of technique

BACKGROUND Major inherent risks associated with percutaneous dilatational tracheostomy include loss of airway during endotracheal tube manipulation, inability to cannulate the trachea below the endotracheal tube, and difficulties related to neck anatomy. METHOD Percutaneous dilatational tracheostomy technique was modified to make the incision in the suprasternal area, and the use of air leak technique confirmed tracheal penetration below the endotracheal cuff. Bronchoscopy was not used. RESULTS One hundred patients underwent percutaneous dilatational tracheostomy using the modification mentioned above. Although three patients had minor bleeding complications, there was no loss of airway; nor were there other complications. CONCLUSION This technique provides improved safety from loss of airway and illuminates the need for concomitant bronchoscopy.

Use of continuous local anesthetic infusion in the management of postoperative split-thickness skin graft donor site pain.

Donor sites from split-thickness skin grafts (STSG) impose significant pain on patients in the early postoperative period. We report the use of continuous local anesthetic infusion as a method for the management of postoperative STSG donor site pain. Patients undergoing single or dual, adjacent STSG harvest from the thigh (eight patients) or back (one patient) were included in this study. Immediately after STSG harvest, subcutaneous catheters were placed for continuous infusion of local anesthetic. Daily donor site–specific pain severity scores were prospectively recorded in nine patients receiving local anesthetic infusion. Patient characteristics, technical aspects, and postoperative complications were identified in the study. The thigh was the anatomic location chosen for most donor sites. A single catheter was placed for donor sites limited to 4 inches in width or less. A dual catheter system was used for those wider than 4 inches. An elastomeric pump delivered continuously a total of 4 ml/hr of a solution of 0.5% bupivacaine. The average anesthetic infusion duration was 3.1 days. A substantial decrease in worst, least, and average donor site pain scores was found from the first 24 hours to the second postoperative day in our patients, a treatment trend that continued through postoperative day 3. One patient developed minor anesthetic leakage from the catheter insertion site; and in three cases, accidental dislodgement of the catheters occurred. There were no cases of donor site secondary infection. All donor sites were completely epithelialized at 1-month follow-up. Continuous local anesthetic infusion is technically feasible and may represent an option for postoperative donor site pain control after STSG harvesting. Relative cost–benefit of the technique remains to be determined.

Roll-bar for protective posture splint limits potential trauma to dorsal hand grafts.

The expectation of excellent functional and cosmetic outcomes adds to the challenges of managing the burned hand. The initial fragility of the grafted surface warrants extra measures of protection. A “roll-bar ” attached to a splint over a grafted area can serve as protection against mechanical trauma. Two “intrinsic plus ” protective posture splints were fabricated; one had a roll-bar extending from the D2 ray to the distal forearm. Three simulated patients wearing each of the splints attempted to contact the bed rail from supine. Pictures, transferred ink, observation, and subjective comments were used to establish percentage of the surface at risk because of bed rail contact and its ease. Without the roll-bar 100% of the dorsal surface of the hand was accessible to contact with the bed rail. With the roll-bar all subjects were prevented from contact to the dorsum of the hand and contact to the dorsal fingers was less than 40% in all subjects, decrease of risk at the wrist was also significant. The roll-bar can prevent mechanical trauma to grafts on the fingers and dorsum of the hand because of contact with the bed rail. The ease of the application and the potential benefits to patient outcome make it an appropriate addition to the protective posture splint when seeking to minimize area of the surface at risk.

A case of pyogenic liver abscesses in a previously healthy adolescent man.

An 18-year-old, previously healthy man admitted with abdominal pain, high-grade fevers, nausea and emesis was found to have multiple hepatic abscesses. Aspiration cultures grew Fusobacterium necrophorum, a rare bacterium causing potentially fatal liver abscesses in humans. Following sequential percutaneous drainages and narrowing of antibiotics, the patient was discharged on a 6-week antibiotic course and showed no signs of infection. A week after presentation it was discovered that he had experienced upper respiratory symptoms and sore throat prior to presentation. Because oropharyngeal infections are a potential source of bacteremia, they must be considered in the differential diagnosis of patients presenting with hepatic abscesses and no evidence of immunocompromise.