La presión del CO2 intraoperatorio y su relación con la omalgia; estudio prospectivo aleatorio / Intraoperative CO2 pressure and its relationship with omalgia (randomized prospective trial)

Introduccón: La colecistectomía laparoscópica es considerada desde principios de los años noventa como el tratamiento de referencia de la litiasis vesicular. Uno de sus beneficios demostrados en comparación con el abordaje convencional es la mejoría significativa del bienestar postoperatorio. Creemos que la presión de insuflado abdominal puede influir en la incidencia de dolor postoperatorio, por lo que el objetivo de este estudio fue investigar la influencia de la presión del neumoperitoneo en la aparición de omalgia. Material y Metodos: Se realizó estudio prospectivo, con asignación aleatoria, a dos grupos: A n= 60 pacientes insuflados a una presión 12 mmHg y un grupo B n=40 pacientes insuflados a una presión de 10 mmHg; entre julio de 2010 a julio de 2011. Criterios de inclusión: pacientes adultos con indicación de colecistectomía. Criterios de exclusión; menores de 18 años, embarazadas, pacientes con enfermedades crónicas que requieren de administración de analgésicos (artritis reumatoidea, enfermedades oncológicas, etc), tratamiento quirúrgico previo, quienes se rechacen participar del estudio. Se utilizó el mismo insuflador con flujo constante (máx. 20 l/m.), y el mismo equipo laparoscópico. El neumoperitoneo se realizo con aguja de Veress en todos los casos. Colocación de trocares con técnica americana. La omalgia fue evaluada a las 12 hs de finalizada la cirugía. Resultados: Se incluyeron 120 pacientes, sometidos a colecistectomías laparoscópicas programadas. Ningún paciente requirió de conversiones. Con una edad media de 51 años, con un rango entre 16 y 82 años, La incidencia de omalgia fue del 40% para el grupo con presiones de insuflado de 10 vs 60% para el grupo con presiones de insuflado de 12 mmHg, P =0,006. La incidencia de omalgia no fue diferente según sexo, 20% de las mujeres vs el 25 % de los hombres (p=0,657), ni para edad, comorbilidad, hábito físico y/o cirujano...

Introduction: Since early 1990s, laparoscopic cholecystectomy is considered as the standard of care for gallstones. One of its demonstrated benefits in comparison with the conventional approach is the significant improvement of post-surgery well-being. We believe that abdominal insufflation pressure may affect the incidence of postoperative pain, and thus, the objective of this trial was to investigate the influence of pneumoperitoneum pressure in the incidence of shoulder pain. Material and Methods: A prospective trial was performed between July 2010 and July 2011, with random allocation into two groups: A n=60 patients with insufflation pressure of 12 mmHg, and B n=40 patients with insufflation pressure of 10 mmHg. Inclusion criteria: adult patients with indication for cholecystectomy. Exclusion criteria: patients under the age of 18 years old, pregnant women, patients with chronic diseases which require pain relievers (rheumatoid arthritis, oncologic diseases, etc.), previous surgery and patients who refuse to participate in the trial. The same insufflator was used with constant flow (20 l/m max) and the same laparoscopic device. Veress needle was used for pneumoperitoneum in all cases. Trocars were positioned using the American technique. Omalgia was assessed 12hs. after surgery. Results: The trial included 120 patients, who had undergone scheduled laparoscopic cholecystectomies. None of the patients required conversion to conventional surgery. With a mean age of 51 years old, ranging from 16 and 82 years of age, the incidence of omalgia was 40% for the group with 10 of insufflation pressure vs. 60% for the group with 12 mmHg of insufflation pressure, P=0.006. The incidence of shoulder pain was not different according to sex –20% women vs. 25% men (p=0.657)– nor for age, co-morbidity, fitness and/or surgeon...

Massive Carbon Dioxide Embolism during the Minimally Invasive Robot-assisted Cardiac Surgery: A case report / 대한마취과학회지

A 37-year-old female was scheduled for minimally invasive mitral valve replacement and Maze operation using the robotically controlled camera (AESOP 3000, Computermotion(R), USA). Thoracic incision and carbon dioxide insufflation was started. The end tidal carbon dioxide suddenly decreased with hypotension and an increase in central venous pressure to 70 mmHg. Then, cardiopulmonary bypass was started and large amount of gas was aspirated. Carbon dioxide embolism was suspected, carbon dioxide insufflation was discontinued. The aspiration of carbon dioxide embolus from cannulae for cardiopulmonary bypass confirmed our diagnosis. The gas flowed out from the peritoneal cavity following diaphragmatic incision, we suspected that the insufflating needle was placed into peritoneal cavity. The operation was completed uneventfully. No neurologic and cardiopulmonary sequelae were noted. We experienced a case of carbon dioxide embolism incidentally induced by carbon dioxide insufflation into closed intraperitoneal cavity.