Six-minute walk test (6MWT) is one of the cardiopulmonary exercise testing (CPET). It is not only used to assess the cardiac and pulmonary function of patients with chronic obstructive pulmonary disease (COPD), but also used to assess COPD patients’ health-related quality of life (HRQoL) or self-management in daily life. With the concept of enhanced recovery after surgery (ERAS) put forward, assessing patients’ preoperative cardiac and pulmonary function, establishing preoperative and early postoperative exercises standards, as well as assessing cardiac and pulmonary rehabilitation after surgery become much more important. CPET gets more attention from clinical surgeons. This study focuses on the clinical value and status of 6MWT in thoracic surgery.
ObjectiveTo explore the effect of body mass index (BMI) on the outcomes of laparoscopic surgery for esophageal hiatal hernia.MethodsWe divided the patients who underwent hiatal hernioraphy and fundoplication surgery in our hospital between July 2013 and June 2018 into two groups according to the BMI: a group A, BMI ≥24 kg/m2, 77 patients, 41 males, 36 females, with an average age of 42 years; a group B: BMI<24 kg/m2, 63 patients, 38 males, 25 females, with an average age of 67 years, and the age, gender, type of hiatal hernia, score of subjective feeling of symptoms, level of reflux esophagitis were analyzed with the propensity score matching method. Fifty one patients were successfully matched in each group, and the curative effect of surgery was compared between the two groups.ResultsThere was no statistical difference in the type of surgery, intraoperative complications, postoperative complications, and hospital stay between the two groups (P>0.05). The operative time of the group A was significantly longer than that of the group B (P=0.023). There was no statistical difference between the two groups in postoperative recurrence (P=0.741).ConclusionThe operative time in overweight patients is significantly longer than that in the non-overweight patients, but it has no effect on the surgical outcomes and complications.
ObjectivesTo systematically review the association between pretreatment serum ferritin (SF) concentration and prognosis in lung cancer patients.MethodsDatabases including PubMed, EMbase, Web of Science, CNKI, VIP and WanFang Data were electronically searched to identify cohort studies on the relationship between the pretreatment SF concentration and prognosis of lung cancer patients from inception to January, 2020. Literature screening, data extraction and quality evaluation of included studies were independently performed by two reviewers. Then, meta-analysis was conducted by Stata 12.0 software.ResultsA total of 8 cohort studies involving 1 002 lung cancer patients were included. The results of meta-analysis indicated that patients with higher pretreatment SF concentration had poorer overall survival (HR=1.70, 95%CI 1.06 to 2.73, P=0.029) compared with patients with lower pretreatment SF concentration. Subgroup analysis based on the pathological type manifested showed that pretreatment SF concentration only had high prognostic value in small cell lung cancer patients (HR=4.78, 95%CI 2.83 to 8.05, P<0.001).ConclusionsLung cancer patients with high pretreatment SF level have worse overall survival. Pretreatment SF concentration may serve as an independent prognostic factor in lung cancer, especially in small cell lung cancer. Due to the limited quality and quantity of included studies, more prospective well-designed studies are required to verify above conclusions.