A 7-month-old infant weighing 8.3 kg and measuring 72 cm (estimated body surface area 0.41 m²), with no significant medical history, was transferred from the Centre Hospitalier de l'Ouest Guyanais (CHOG) to the Centre Hospitalier Andrée Rosemon (CHAR) for acute respiratory distress, severe anemia, and marked renal impairment occurring in the context of an upper respiratory tract infection and diarrhea that had been progressing for four days.

On admission, the child presented with Kussmaul breathing and without signs of respiratory distress, indicating profound metabolic acidosis. The extremities were cold, and peripheral pulses were well palpable, with stable systolic blood pressure around 120 mmHg. There was rapidly progressive oligoanuria. The child was conscious and alert, with a Glasgow Coma Scale score of 15, without meningeal syndrome or focal neurological signs. He was afebrile, breathing ambient air, with oxygen saturation at 100% and a respiratory rate ranging between 30 and 40 cycles per minute. No signs of shock were observed.

The initial biological assessment, including arterial blood gas analysis, revealed severe metabolic acidosis (pH: 6.99; pCO2: 26 mmHg; bicarbonate: 5.6 mmol/L), associated with a high anion gap (21.4 mmol/L). Acute renal failure was evident from creatinine levels of 396 µmol/L and urea levels of 30 mmol/L, accompanied by hyperkalemia of 6.7 mmol/L. Serum chloride and sodium concentrations were 108 and 135 mmol/L, respectively, with a lactate level of 3.5 mmol/L. Severe anemia (hemoglobin 6.9 g/dL) was associated with predominantly neutrophilic leukocytosis (26.8 G/L), a normal platelet count, CRP 11.7 mg/L, and moderately elevated procalcitonin (0.79 ng/mL).

Ultrasound of the urinary tract showed kidneys with regular contours, no focal or diffuse lesions, but with increased cortical echogenicity compared to the liver and spleen, as well as bilateral hypotonia consistent with parenchymal involvement. Parenchymal-sinus differentiation was preserved, and no obstructions were visible in the excretory tract. A moderate amount of intra-abdominal fluid effusion was also observed between the intestinal loops. The bladder, gallbladder, and hepatobiliary structures were unremarkable.

• Day 0 (D0): Initial management was implemented to stabilize the patient. This included a 160 mL blood transfusion administered over 4 hours to correct anemia, appropriate rehydration at a rate of 100 mL/kg/day with a 5% glucose solution enriched with 4 g/L sodium chloride, and correction of metabolic acidosis by infusion of sodium bicarbonate at a dose of 2 mL/kg (i.e., 16 mL), administered over 4 hours.

• Day 1 (D1): Given the persistence of anuria and acidosis, a collegial decision was made, after consulting the referring pediatric nephrologist, to resort to emergency peritoneal dialysis (PD). The peritoneal catheter was surgically inserted by the pediatric surgery team.

• Day 2 (D2): Automated peritoneal dialysis (APD) was started according to a protocol of five cycles of 350 mL each, with a dwell time of 30 minutes, for a total duration of three hours. The prescribed dialysate volume was adjusted according to body surface area in accordance with the recommendations [11] : i.e., 800 mL/m². This corresponded to a volume of 328 mL, rounded to 350 mL per cycle. The procedure resulted in ultrafiltration of 350 mL. It was well tolerated by the child, with no signs of respiratory deterioration or initial peritoneal leakage.

• Day 3 (D3): The dwell time was extended to 4 hours to reduce excessive ultrafiltration, and hydration was introduced through retrofiltration to prevent dehydration. Six exchanges were performed over 24 hours, with a total injected volume of 2,100 mL and a cumulative ultrafiltration of 1,300 mL. The child showed rapid clinical improvement, with blood pH rising to 7.29, eupneic breathing, and no need for oxygen.

• Day 4 (D4): The patient was medically evacuated intercontinentally by commercial flight from Cayenne to Paris (Robert Debré University Hospital), a flight lasting 8 hours and 30 minutes. Peritoneal dialysis was continued on board thanks to three manual exchanges performed by an adult nephrologist accompanying the transfer. The child's mother actively participated in the procedures, illustrating the importance of collaboration in a constrained environment. In the absence of a pole to suspend the dialysis bags, the flight attendants improvised a mechanism using a support to hang the bags at the joint of the overhead compartments.

The transfer was supervised by a multidisciplinary team (pediatrician, adult nephrologist, and registered nurse). Aseptic rules were strictly followed: sterile gloves and masks were worn by the entire team, and a hydroalcoholic solution was used. The volumes infused were adjusted precisely using a scale borrowed from a local dialysis patient: after each drainage, the volume recovered was weighed, and the excess transferred to the drainage bag until the prescribed volume was obtained, then administered into the peritoneal cavity. During the third exchange, a leak was detected, prompting the exchanges to be stopped for the remainder of the flight. On arrival in Paris, the child was in good general condition, with stable breathing and no ionic or acid-base disorders.

On arrival in Paris, the child was in good general condition, with stable breathing and no ionic or acid–base disorders.

The initial clinical course under peritoneal dialysis was marked by a gradual correction of hydroelectrolytic and acid-base disorders, as well as the resumption of diuresis. No significant recovery of renal function was observed, however, thus justifying the initiation of chronic peritoneal dialysis. Genetic testing was negative. Dialysis treatment was continued at Nice University Hospital for family reasons related to the mother.

Children hospitalized in French Guiana, particularly those in critical condition, are at increased risk of AKI, a common complication in this population, with a prevalence of up to 25% [1][2]. In the absence of both a pediatric nephrology unit and appropriate extracorporeal techniques in the territory, treatment options are limited. This situation exposes children to delays in treatment and preventable mortality, As has already been emphasized in another publication regarding the status of pediatric nephrology in French Guiana [13].

Peritoneal dialysis: a suitable, safe, and accessible treatment option PD, particularly manual CAPD, is proving to be a technique of choice for children, especially in low-resource settings, such as French Guiana. The 2021 ISPD recommendations confirm its central role in the management of pediatric AKI, particularly in low-birth-weight infants and newborns after cardiac surgery.[5][6] Although its use is declining in high-income countries, it remains the predominant method in many resource-limited countries and remains valuable for young patients, particularly in the postoperative setting or in areas without access to .

This case is remarkable for its unprecedented implementation of PD sessions in flight during a medical evacuation between French Guiana and mainland France. It demonstrates the robustness and safety of this technique and the ability of the healthcare team to adapt in a constrained environment. It thus paves the way for consideration of the systematic inclusion of PD in pediatric emergency evacuation protocols and for better equipping local facilities to respond to pediatric nephrological emergencies [10][11].

A strategic lever for strengthening pediatric nephrology in French Guiana

Several authors have emphasized the importance of developing viable and realistic alternatives to heavy-duty techniques in French Guiana, particularly for nephrological care at home or for children [4][12]. This case shows that PD can be integrated as a key tool in the regional nephrology strategy pending the wider development of specialized services. This requires, however, investment in training pediatric teams, the creation of standardized protocols, and the provision of ready-to-use equipment, even in isolated settings.

The informed consent of the infant's parents was obtained for the publication of this case report. All procedures described complied with the ethical principles of the Declaration of Helsinki. No information that could identify the patient has been disclosed.

The authors declare no conflicts of interest.

Author contributions AMB, MB, MS, SB, TD, ID, and TFG contributed to the clinical management of the patient and data collection. MB, AMB, and TFG drafted the manuscript. MS, SB, TD, and ID participated in critical revision and improvement of the content. All authors approved the final version of the manuscript and agree to take responsibility for it.

The authors did not receive any funding for this publication

The authors would like to thank the pediatric surgery team at the Guyana University Hospital, the nursing staff in the pediatrics and nephrology departments, and the EVASAN team in Guyana for their professionalism.

Numéro ORCID Arriel Makembi Bunkete : https://orcid.org/0000-0001-9651-437X