Meir Kestenbaum MD, Daphne Robakis MD, Blair Ford MD, Roy N. Alcalay MD MSc and Elan D. Louis MD MSc
Background: Only a minority of patients with essential tremor (ET) and Parkinson’s disease (PD) undergo deep brain stimulation (DBS) surgery. Data on patient selection factors are useful.
Objectives: To compare the clinical characteristics of ET and PD patients who underwent DBS surgery with those of patients who had not undergone surgery.
Methods: We abstracted data from the electronic medical records of 121 PD and 34 ET patients who underwent DBS surgery at Columbia University Medical Center during the period 2009–2014. We compared this group with 100 randomly selected PD and 100 randomly selected ET patients at the Center who had not undergone DBS surgery.
Results: Among other differences, age of onset in PD patients who had undergone surgery was younger than in those who did not: 14.9% vs. 3.0% with onset before age 40 (P = 0.003). They had also tried nearly double the number of medications (3.9 ± 1.7 vs. 2.3 ± 1.5, P < 0.001). Interestingly, there was no difference in the proportion of patients with tremor (81.0% vs. 88.0%, P = 0.16). Medical co-morbidities (heart and lungs) were less common in the PD patients who underwent DBS surgery. In the ET group, tremor causing impairment in activities of daily living occurred in all surgical patients compared to 73.0% of non-surgical patients (P < 0.001). The former had tried nearly double the number of medications compared to the latter (3.2 ± 1.7 vs. 1.3 ± 1.3, P < 0.001).
Conclusions: These data add to our understanding of the numerous clinical factors associated with patient referral to DBS surgery.
Mordechai Shimonov MD, Lior Leibou MD, Eduard Davidov MD, Olga Bernadsky MD, Julio Wainstein MD and Eyal Leibovitz MD
Background: Helicobacter pylori (HP) infection of the gastric mucosa may be involved in the development of insulin resistance (IR).
Objectives: To investigate the association between HP status in stomach biopsies and weight reduction in patients who underwent laparoscopic sleeve gastrectomy (LSG).
Methods: In this retrospective analysis of medical charts, all patients who underwent LSG for weight reduction and had at least 1 year of follow-up were included. HP status was ascertained by two to four biopsies of the removed stomach.
Results: The study group comprised 70 patients; their mean age was 45.9 ± 11.9 years and 31.9% were males. Fourteen patients (20%) tested positive for HP colonization in gastric mucosa. HP status was not associated with age or smoking status. No difference was noted in the rate of diabetes mellitus (DM) or hypertension, but patients with HP had lower rates of hyperlipidemia (0 vs. 29 patients, 52%, P < 0.001). Patients lost an average of 10.5 kg/m2 after 12 months of follow-up, and no difference was noted between HP-positive and HP-negative patients. The rate of DM control was also similar between HP-positive and HP-negative patients at baseline (33.3 vs. 29.4, P = NS) and at 12 months of follow-up (70% vs. 50%, P = NS).
Conclusions: HP status was not associated with changes in metabolic profiles and co-morbidity status, or in the efficacy of LSG.
Irena Ulanovsky MD, Morya Shnaider, Yuval Geffen PhD, Tatiana Smolkin MD, Tatyana Mashiah MA and Imad R. Makhoul MD PhD
Background: Due to a shortage of individualized erythromycin ointment (IEO), we switched to shared erythromycin drops (SED). Following this change, nurses claimed observing more cases of eye discharge.
Objectives: To test whether switching from IEO to SED affected the rate of neonatal conjunctivitis (NC).
Methods: The study group included 14,916 neonates > 35 weeks of gestation, further divided into two birth periods of 12 months each: 1 January 2013 to 31 December 2013 (IEO) and 1 February 2014 to 31 January 2015 (SED). We compared the two birth periods with regard to three variables: clinical NC (number of conjunctival swabs/1000 neonates), bacterial NC (number of culture-positive swabs/1000 neonates), and bacterial growth percentage (number of culture-positive swabs/100 samples).
Results: Compared to 2012–2013, the period 2014–2015 included fewer cesarean deliveries and shorter length of stay (LOS). Clinical NC, bacterial NC and bacterial-growth percentage were not different between the two periods. Variables that were independently significantly associated with increased clinical NC included male gender (OR 1.48, CI 1.21–1.81) and LOS (OR 1.24, CI 1.18–1.29). LOS was associated with bacterial NC (OR 1.19, CI 1.11–1.28). Coagulase-negative staphylococci, Escherichia coli and Pseudomonas aeruginosa were the prevalent pathogens, though without difference between periods.
Conclusions: Rates of clinical NC, bacterial NC and bacterial-growth percentage were not different between the study periods. Switching from IEO to SED had no effect on the NC rate.
Noa Lavi MD, Gali Shapira MD, Ariel Zilberlicht MD, Noam Benyamini MD, Dan Farbstein MD, Eldad J. Dann MD, Rachel Bar-Shalom MD and Irit Avivi MD
Background: Despite the lack of clinical studies supporting the use of routine surveillance FDG-positron emission tomography (PET) in patients with diffuse large B cell lymphoma (DLBCL) who achieved remission, many centers still use this strategy, especially in high risk patients. Surveillance FDG-PET computed tomography (CT) is associated with a high false positive (FP) rate in DLBCL patients.
Objectives: To investigate whether use of specific CT measurements could improve the positive predictive value (PPV) of surveillance FDG-PET/CT.
Methods: This retrospective study included DLBCL patients treated with CHOP or R-CHOP who achieved complete remission and had at least one positive surveillance PET. CT-derived features of PET-positive sites, including long and short diameters and presence of calcification and fatty hilum within lymph nodes, were assessed. Relapse was confirmed by biopsy or consecutive imaging. The FP rate and PPV of surveillance PET evaluated with/without CT-derived measurements were compared.
Results: Seventy surveillance FDG-PET/CT scans performed in 53 patients were interpreted as positive for relapse. Of these studies 25 (36%) were defined as true-positive (TP) and 45 (64%) as FP. Multivariate analysis found long or short axis measuring ≥ 1.5 and ≥ 1.0 cm, respectively, in PET-positive sites, International Prognostic Index (IPI) ≥ 2, lack of prior rituximab therapy and FDG uptake in a previously involved site, to be independent predictors of true positive surveillance PET (odds ratio 5.4, 6.89, 6.6, 4.9, P < 0.05 for all).
Conclusion: PPV of surveillance PET/CT may be improved by its use in selected high risk DLBCL patients and combined assessment of PET and CT findings.
Javier Marco-Hernández MD PhD, Sergio Prieto-González MD, Miquel Blasco MD, Pedro Castro MD PhD, Joan Cid MD PhD and Gerard Espinosa MD PhD