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Risk analysis in resection of squamous cell carcinoma of the esophagus

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Abstract

A study of risk factors that affect morbidity and mortality in 523 patients with squamous cell cancer of the esophagus who had one-stage resection was undertaken. The 30-day and hospital mortality rates were 5.0% and 15.5%, respectively. Pulmonary complications, malignant cachexia, and surgical complications accounted for 42%, 25%, and 21% of hospital deaths, respectively. Major pulmonary complications occurred in 23% of patients. Multivariate analysis identified six factors that predicted major pulmonary complications: age, mid-arm circumference, percent of predicted FEV1, abnormal chest radiograph, amount of blood loss, and palliative resection. Three risk groups of pulmonary complications were identified: low, median, and high risk group with complications in 3%, 17%, and 43% of patients, respectively. Significantly, patients with curative resection had a lower hospital mortality rate (9%) than those with palliative resection (20%), p=0.001. Patients with stage I, IIa, or IIb disease had a lower hospital mortality rate (9%) than those with stage III or IV disease (18%), p=0.026. Multivariate analysis identified six factors that predicted hospital death: age, mid-arm circumference, history of smoking, incentive spirometry, number of stairs climbed, and amount of blood loss. Three risk groups of hospital death were identified: low, median, and high risk groups with death in 7%, 30%, and 38%, respectively. Anastomotic leakage rate was 4%. Technical faults were identified in 53% of patients with leakage. Together with other surgical complications, a presumed or apparent technical error was noted in 63% of patients. The identification of high-risk patients and prevention of technical faults can help improve surgical outcome.

Résumé

Dans cette étude, on a étudié les facteurs de risque influençant la morbidité et la mortalité chez 523 patients ayant un cancer épidermoïde de l'oesophage et ayant eu une résection en un seul temps. La mortalité à 30 jours et la mortalité hospitalière ont été respectivement de 5% et de 15.5%. Les complications pulmonaires, la cachexie maligne et les complications chirurgicales ont été responsable respectivement de 42%, 25% et 21% des décès hospitaliers. Une analyse multifactorielle a permis d'identifier six facteurs prédictifs des complications pulmonaires: l'âge, la circonférence brachiale, la prévision du volume expiratoire forcé en une seconde, les anomalies de la radiographie thoracique, la quantité de sang perdu, et le caractère palliatif de la résection. Trois groupes, dont le risque de complications pulmonaires a été classé faible, moyen et élevé, ont été identifiés. Le taux de complications dans ces groupes ont été respectivement de 3%, 17% et 43%. Les patients ayant eu une résection à visée curative avaient une mortalité hospitalière significativement plus basse (9%) comparée à celle des patients ayant eu une résection à visée palliative (20%) (p=0.001). Les patients ayant des maladies de stades I, IIa, IIb avaient une mortalité plus basse (9%) que ceux qui avaient des stades III ou IV (18%), (p=0.026). L'analyse multifactorielle a permis d'identifier six facteurs prédictifs de la mortalité hospitalière: l'âge, la circonférence brachial, des antécédents de consommation excessive du tabac, la spirométrie, le nombre d'escaliers que le patient peut monter, et la quantité de sang perdu. Trois groupes de patients, dont le risque de mortalité hospitalière a été classé faible, moyen, et élevé, ont eu des décès dans respectivement 7%, 30% et 38% des cas. Le taux de fistule a été de 4%. Une faute technique a été identifiée chez 53% des patients ayant eu une fistule. Une faute technique apparente ou présumée a été identifie chez 63% des patients ayant eu soit une fistule soit une complication chirurgicale. L'identification des patients à haut risque et la prévention des fautes techniques peuvent contribuer à améliorer le pronostic après chirurgie.

Resumen

Se emprendió un estudio sobre los factores de riesgo que afectaron la mortalidad en 523 pacientes con carcinoma escamocelular del esófago sometidos a resección en una etapa en nuestra institución.

Las tasas de mortalidad a 30 días y de mortalidad hospitalaria fueron 5% y 15%. Las complicaciones pulmonares, caquexia maligna y quirúrgica representaron 42%, 25% y 21% de las muertes hospitalarias, respectivamente. Complicaciones pulmonares mayores fueron registradas en 23% de los pacientes.

El análisis multivariado identificó seis factores que predicen complicaciones pulmonares mayores: edad, circunferencia del brazo, porcentaje del FEV1 predecible, radiografía de tórax anormal, pérdida de sangre durante la operación y resección de tipo paliativo. Se identificaron tres grupos de riesgo de desarrollar complicaciones pulmonares: bajo, medio y alto, con tasas de 3%, 17% y 43% de los pacientes, respectivamente. Los pacientes que recibieron resección curative exhibieron una significativamente menor tasa de mortalidad hospitalaria (9%) en comparación con los que recibieron resección paliativa (20%), p=0.001. Los pacientes con enfermedad en estados I, IIa, IIb exhibieron menor mortalidad hospitalaria (9%) en comparación con los estados III o IV (18%), p=0.026. El análisis multivariado identificó seis factores que predicen mortalidad hospitalaria: edad, circunferencia del brazo, historia de tabaquismo, espirometría de incentivo, número de escalones que puede ascender y pérdida de sangre durante la operación. Se identificaron tres grupos de riesgo de mortalidad hospitalaria: bajo, medio y alto, con tasas de 7%, 30% y 38% respectivamente.

La tasa de fuga anastomótica fue 4% y se identificaron defectos técnicos en 53% de los pacientes. Junto con otras complicaciones quirúrgicas, se observó un error técnico presumible o aparente en 63% de los pacientes.

La identificación de los pacientes de alto riesgo y la prevención de los errores técnicos pueden ayudar a mejorar el pronóstico.

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Authors and Affiliations

  1. Department of Surgery, The University of Hong Kong, Queen Mary Hospital, Hong Kong

    Simon Y. K. Law F.R.C.S.Ed., Manson Fok F.R.C.S.Ed. & John Wong Ph.D.

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  1. Simon Y. K. Law F.R.C.S.Ed.
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  2. Manson Fok F.R.C.S.Ed.
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Law, S.Y.K., Fok, M. & Wong, J. Risk analysis in resection of squamous cell carcinoma of the esophagus. World J. Surg. 18, 339–346 (1994). https://doi.org/10.1007/BF00316812

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