The diabetic surgical patient

Comanagement of surgical patients between neurosurgeons and internal-medicine clinicians: observational cohort study

The rising prevalence of chronic diseases have contributed to a population with high complexity of care. There has been an increasing need for a new organizational model based on the interaction in the same department between the specialist skills of surgical and medical disciplines. This study aims to describe the implementation of a hospitalist co-management program in a Neurosurgery Department (ND) and its impact on the incidence of medical complications, 30 days readmission rate for medical causes, number of transfers to Intensive Care Units (ICU)/Neurosurgical Intensive Care Unit (NICU) or to medical wards (MW), length-of stay (LOS), mortality and satisfaction of health workers. We conducted an observational study comparing changes before and after the Internal medicine-Neurosurgical Comanagement (INC) intervention. We conducted a retrospective evaluation of patients enrolled before the INC intervention and a prospective evaluation of those enrolled after the INC intervention was implemented. We defined the pre-INC intervention group as 380 patients admitted to the ND for neurosurgical disease between January 2022 and April 2022 and the post-INC intervention group as 367 patients admitted to the ND between January 2023 and April 2023. INC intervention was associated with a significant decrease in medical complications during the hospital stay (OR 0.52; 95% CI; 0.39-0.70, p < 0.001), 30 days in-hospital readmission for medical reasons (OR 0.95; 95% CI 0.93-0.97, p < 0.001) and numbers of transfers to ICU/NICU (OR 0.31; 95% CI; 0.17-0.55, p < 0.001) or MW (OR 0.51; 95% CI 0.33-0.77, p = 0.002). During the INC intervention period, we observed a high satisfaction rate in health workers, evaluated by standardized questionnaire. In our study, LOS, in-hospital mortality and 30-day mortality were not significantly associated with INC. Hospitalist co-management in Neurosurgical Departments was associated with a reduced incidence of medical complications, 30-days in-hospital readmission and numbers of transfers to ICU/NICU or MW with a high satisfaction rate among healthcare workers, but without a significant decrease in LOS and mortality rate.

Diabetes Mellitus: Preoperative Concerns and Evaluation

Diabetes is an important cause of morbidity in the adult population resulting in blindness, renal dysfunction, cardiovascular events, and amputation. Such morbidities may have an impact on perioperative anesthetic care and outcomes. In this review, the authors discuss the preoperative considerations in managing patients with diabetes as well as those without diabetes albeit hyperglycemic. They propose a plan for managing preoperative diabetes pharmacotherapy, including the use of a subcutaneous insulin pump to avoid both hypoglycemia and hyperglycemia. The authors also discuss the decision whether to proceed or cancel surgery for a given hemoglobin A1c percentage or blood glucose concentration.

[Evaluation and perioperative management of patients with diabetes mellitus. A challenge for the anesthesiologist]

Diabetes mellitus (DM) is characterized by alteration in carbohydrate metabolism, leading to hyperglycemia and increased perioperative morbidity and mortality. It evolves with diverse and progressive physiological changes, and the anesthetic management requires attention regarding this disease interference in multiple organ systems and their respective complications. Patient's history, physical examination, and complementary exams are important in the preoperative management, particularly glycosylated hemoglobin (HbA1c), which has a strong predictive value for complications associated with diabetes. The goal of surgical planning is to reduce the fasting time and maintain the patient's routine. Patients with Type 1 DM must receive insulin (even during the preoperative fast) to meet the basal physiological demands and avoid ketoacidosis. Whereas patients with Type 2 DM treated with multiple injectable and/or oral drugs are susceptible to develop a hyperglycemic hyperosmolar state (HHS). Therefore, the management of hypoglycemic agents and different types of insulin is fundamental, as well as determining the surgical schedule and, consequently, the number of lost meals for dose adjustment and drug suspension. Current evidence suggests the safe target to maintain glycemic control in surgical patients, but does not conclude whether it should be obtained with either moderate or severe glycemic control.

Evaluation and perioperative management of patients with diabetes mellitus. A challenge for the anesthesiologist

Diabetes mellitus (DM) is characterized by alteration in carbohydrate metabolism, leading to hyperglycemia and increased perioperative morbidity and mortality. It evolves with diverse and progressive physiological changes, and the anesthetic management requires attention regarding this disease interference in multiple organ systems and their respective complications. Patient's history, physical examination, and complementary exams are important in the preoperative management, particularly glycosylated hemoglobin (HbA1c), which has a strong predictive value for complications associated with diabetes. The goal of surgical planning is to reduce the fasting time and maintain the patient's routine. Patients with Type 1 DM must receive insulin (even during the preoperative fast) to meet the basal physiological demands and avoid ketoacidosis. Whereas patients with Type 2 DM treated with multiple injectable and/or oral drugs are susceptible to develop a hyperglycemic hyperosmolar state (HHS). Therefore, the management of hypoglycemic agents and different types of insulin is fundamental, as well as determining the surgical schedule and, consequently, the number of lost meals for dose adjustment and drug suspension. Current evidence suggests the safe target to maintain glycemic control in surgical patients, but does not conclude whether it should be obtained with either moderate or severe glycemic control.

Impact of Diabetes Mellitus on Head and Neck Cancer Patients Undergoing Surgery

Objective

The impact of diabetes mellitus (DM) on surgical outcomes and cost of care for patients undergoing surgery for head and neck cancer (HNCA) is not well established. We used the Nationwide Inpatient Sample to analyze the postoperative impact of DM on HNCA patients.

Study Design

Population-based inpatient registry analysis.

Setting

Academic medical center.

Subjects and Methods

Discharge data from the Nationwide Inpatient Sample were analyzed for patients undergoing HNCA surgery from 2002 to 2010. Patient demographics, comorbidities, length of stay, hospital charges, and postoperative complications were compared between HNCA patients with and without DM.

Results

Of 31,075 patients, 4029 patients (13.0%) had a DM diagnosis. DM patients were older (65.7 ± 10.8 vs 61.1 ± 14.1 years old; P < .001), had more preexisting comorbidities, had longer hospitalizations, and incurred greater hospital charges. Compared with the non-DM cohort, DM patients experienced significantly higher rates of postoperative infections (2.6% vs 2.1%, P = .025), cardiac events (9.0% vs 4.3%, P < .001), pulmonary edema/failure (6.6% vs 5.7%, P = .023), acute renal failure (3.3% vs 1.5%, P < .001), and urinary tract infections (2.8 % vs 2.1%, P = .005). No differences in surgical wound healing rates were observed (0.1 vs 0.1, P = .794). On multivariate logistic regression corrected for age and race, DM patients had greater odds of postoperative infections (1.382, P = .007), cardiac events (1.893, P < .001), and acute renal failure (2.023, P < .001).

Conclusions

DM is associated with greater length of stay and hospital charges among HNCA patients. DM patients have significantly greater rates of postoperative complications, including postoperative infections, cardiac events, and acute renal failure.

Perioperative blood glucose monitoring in the general surgical population

Several studies have shown a relationship between poor outcome and uncontrolled blood glucose (BG) in cardiac, neurosurgical, critical care, and general surgical patients. A major study showed that tight glycemic control (80-110mg/dl) was related to increased mortality. Based on evidence from controlled studies, the American Diabetes Association, and the Society of Thoracic Surgeons, maintaining intraoperative BG levels in the 140-180 mg/dl range seems appropriate. Optimization of the patient's preoperative medications and the use of insulin infusions, as well as surgical and anesthetic technique, are important factors for achieving desirable perioperative BG control. Minimizing BG variability during surgery should be part of the glycemic control strategy. Advances in real-time glucose monitoring may soon benefit hospitalized diabetes and nondiabetes patients.

New insulin analogues and insulin delivery devices for the perioperative management of diabetic patients

PURPOSE OF REVIEW

With the rising incidence of diabetes mellitus in the United States today, more and more patients with this comorbidity will present for surgical or interventional procedures. Treatments are becoming more varied and complex so anesthesiologists must be familiar with new drugs and delivery modalities used in the treatment of this patient population.

RECENT FINDINGS

New types of insulin have revolutionized diabetic care. The introduction of rapid acting and long acting insulin has enabled more precise glucose control to be achieved. New delivery modes of insulin both by the inhaled/buccal route and premeasured pen have been introduced. The newer oral hypoglycemic agents are also in use and have mechanisms of action that differ from the older treatments.

SUMMARY

Anesthesiologists must keep themselves updated with the rapidly changing treatment options for diabetic patients with both type 1 and type 2 diseases. The mechanism of action and duration of newer drugs are important for clinicians to know when managing intraoperative serum glucose control.

ADULT DEGENERATIVE SCOLIOSIS

OBJECTIVE

To review and define principles and features of treatment for adult degenerative scoliosis, the most common cause of adult spinal deformities.

STUDY DESIGN

We conducted a comprehensive review of the literature and our clinical experience.

METHODS

A systematic review of Medline was conducted, including journal articles published in March 2007 and before. We searched for articles related to adult spinal deformities (scoliosis) and treatments.

CONCLUSION

Degenerative scoliosis is a complex disorder. The primary surgical aims are to decompress the neural elements, normalize both sagittal balance and coronal and rotational deformity, fixate to the sacrum/ilium when appropriate, and optimize conditions for osteogenesis and fusion.