Postpartum retroperitoneal fasciitis: a case report and review of literature

Native Hip Septic Arthritis in the Setting of Postpartum Gynecologic Infection: A Case Report

CASE

A 34-year-old healthy G3P3 woman, 1.5 weeks postpartum, presented with hip pain, fever, and a rash. Clinical examination, laboratory testing, and microbiologic cultures identified bacterial arthritis of the right hip; obstetric/gynecologic examination and cultures identified endometrial, vaginal, and urinary tract infections caused by the same pathogen, group A streptococcus, likely contracted from her 5-year-old son who had streptococcal pharyngitis. She underwent successful surgical decompression of the hip with concurrent medical management of toxic shock syndrome (TSS).

CONCLUSIONS

Hematogenously spread septic arthritis may occur in the absence of positive blood cultures during the postpartum period, increasing the risk of developing TSS.

How could we suspect life-threatening perinatal group A streptococcal infection?

AIM

Perinatal group A streptococcal infection is a rare but life-threatening condition. Few reports have focused on its clinical characteristics and how to prevent deterioration. We report our experience with two antenatal fatal cases and reviewed 96 cases in the literature to assess the clinical characteristics of group A streptococcal infection.

METHODS

English-language clinical reports of antenatal and postnatal group A streptococcal infection in 1974-2019 were retrieved and examined. Relationships between clinical characteristics and maternal outcomes were assessed.

RESULTS

Univariate analysis revealed that antenatal group A streptococcal infection was significantly associated with an age of ≤19 or ≥ 35 years, cesarean section, sore throat as an initial symptom, positive throat culture, maternal death and fetal death. Multivariate analysis revealed that antenatal onset (odds ratio = 7.922, 95% confidence interval = 1.297-48.374; P = 0.025) and a quick sepsis-related organ-failure assessment score (qSOFA; low blood pressure, high respiratory rate or altered mental status) of ≥2 (odds ratio = 6.166, 95% confidence interval = 1.066-35.670; P = 0.042) were significantly related to maternal death.

CONCLUSION

Per our findings, antenatal group A streptococcal infection was significantly associated with maternal and fetal death. Further, the antenatal infection was revealed as a more critical risk factor. We suggest that the presence of any sign related to the qSOFA is a potential clue suspecting perinatal group A streptococcal infection in primary obstetric facilities.

A rare and fatal cause of right iliac fossa pain—When retroperitoneal necrotizing fasciitis masquerades as acute appendicitis: A case report and review of recent reported cases

Introduction: Retroperitoneal necrotizing fasciitis is an uncommon, rapidly fatal condition which often mimics other diseases. Case presentation: We report a case of an elderly woman who was referred to our Emergency Department for suspected acute appendicitis. Computed tomography scan showed an iliopsoas abscess with necrotizing fasciitis on computed tomography scan. Despite aggressive surgical treatment and early antibiotics, she passed away 3 weeks later. Conclusion: Such a case has rarely been reported in an immunocompetent patient who has had no instrumentation, surgeries, or trauma. It serves to highlight the difficulty in diagnosing retroperitoneal necrotizing fasciitis, especially in the elderly patient, as well as the need to recognize it early in the Emergency Department.

Puerperal group A streptococcal infection: beyond Semmelweis

Ignaz Semmelweiss made one of the most important contributions to modern medicine when he instituted handwashing in an obstetric clinic in Austria in 1847, decreasing mortality there from more than 10% to 2%. Unfortunately, puerperal sepsis remains a leading cause of maternal mortality throughout the world. Group A streptococcus (GAS), Streptococcus pyogenes, is an organism associated with high rates of morbidity and mortality from puerperal infections. When associated with sepsis, known as streptococcal toxic shock syndrome, mortality rates approach 30-50%. Group A streptococcus can cause invasive infections in the form of endometritis, necrotizing fasciitis, or streptococcal toxic shock syndrome. The clinical presentation of women with puerperal GAS infections is often atypical with extremes of temperature, unusual and vague pain, and pain in extremities. Toxin production by the organism may allow GAS to spread across tissue planes and cause necrosis while evading containment by the maternal immune system in the form of a discrete abscess. Endometrial aspiration in addition to blood cultures may be a useful rapid diagnostic tool. Imaging may appear normal and should not dissuade the clinician from aggressive management. When suspected, invasive GAS infections should be treated emergently with fluid resuscitation, antibiotic administration, and source control. The optimal antibiotic regimen contains penicillin and clindamycin. Source control may require extensive wound or vulvar debridement, hysterectomy, or a combination of these, which may be life-saving. The benefit of immunoglobulins in management of puerperal GAS infections is unclear.