Publications

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2022
Mostafa, M., and A. Hasanin, "Appropriate intraoperative haemodynamic targets. Comment on Br J Anaesth 2021; 127: 396-404.", British journal of anaesthesia, vol. 128, issue 1, pp. e13-e14, 2022.
Hasanin, A., M. Mostafa, and M. Abdulatif, "Combined Thoracic Spinal-Epidural Anesthesia in Laparoscopic Sleeve Gastrectomy: a Risk-Benefit Assessment.", Obesity surgery, vol. 32, issue 6, pp. 2092-2093, 2022.
Sarhan, K., A. Hasanin, R. Melad, R. Fouad, H. Elhadi, M. Elsherbeeny, A. Arafa, and M. Mostafa, "Correction to: Evaluation of gastric contents using ultrasound in full-term pregnant women fasted for 8 h: a prospective observational study.", Journal of anesthesia, vol. 36, issue 1, pp. 143, 2022.
Sarhan, K., A. Hasanin, R. Melad, R. Fouad, H. Elhadi, M. Elsherbeeny, A. Arafa, and M. Mostafa, "Evaluation of gastric contents using ultrasound in full-term pregnant women fasted for 8 h: a prospective observational study.", Journal of anesthesia, vol. 36, issue 1, pp. 137-142, 2022. Abstract

BACKGROUND: We aimed to evaluate the gastric volume and contents after an 8-h fasting period in full-term, non-laboring, pregnant women following a standardized meal.

METHODS: In this prospective observational study, we included full-term pregnant women scheduled for elective cesarean delivery. The participants were instructed to fast after a standardized meal (apple juice, bread, and cheese). Participants were scanned in the semi-recumbent and right-lateral positions 8 h after the standardized meal. The primary outcome was the proportion of patients with gastric volume > 1.5 mL kg calculated by two equations. Secondary outcomes included the antral cross-sectional area and gastric volume. Data are expressed as frequency (%, 95% confidence interval [CI]), mean ± standard deviation (95% CI of the mean), or median (quartiles) as appropriate.

RESULTS: Forty-one women were available for the final analysis. For the primary outcome, one participant (2.4%, 95% CI of 0.06 to 12.8%) had gastric volume > 1.5 mL kg, and none had solids in the antrum. For the secondary outcomes, the mean (95% CI of the mean) of the antral cross-sectional area was 2.11 ± 0.72 (1.88 to 2.34) cm and 4.08 ± 1.80 (3.51 to 4.65) cm during the semi-recumbent and right-lateral position, respectively. The median (quartiles) gastric volume was 0.53 (0.32, 0.66) mL kg and 0.33 (0.13, 0.52) mL kg as estimated by Perlas et al. and Roukhomovsky et al. equations, respectively.

CONCLUSION: After 8-h fasting following a standardized meal, full-term pregnant non-laboring women are less likely to have a high residual gastric volume.

Hasanin, A., M. Abdulatif, and M. Mostafa, "Is invasive blood pressure monitoring harmful?", European journal of anaesthesiology, vol. 39, issue 2, pp. 178-180, 2022.
Helmy, M. A., A. Hasanin, L. Magdy Milad, M. Mostafa, and S. Fathy, "Parasternal intercostal muscle thickening as a predictor of non-invasive ventilation failure in patients with COVID-19.", Anaesthesia, critical care & pain medicine, vol. 41, issue 3, pp. 101063, 2022.
Mostafa, M., M. A. Helmy, L. Magdy Milad, and A. Hasanin, "Patient self-induced lung injury risk in severe COVID-19.", Anaesthesia, critical care & pain medicine, vol. 41, issue 2, pp. 101018, 2022.
2021
Mahmoud, M., A. M. Hasanin, M. Mostafa, F. Alhamade, B. Abdelhamid, and M. Elsherbeeny, "Evaluation of super-obesity and super-super-obesity as risk factors for difficult intubation in patients undergoing bariatric surgery", Surgery for Obesity and Related Diseases, vol. 17, issue 7: Elsevier Inc., pp. 1279 - 1285, 2021. AbstractWebsite
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Abdelnasser, A., M. Mostafa, A. Hasanin, A. El-Sakka, and H. Hassanein, "Guillain-Barré syndrome in the early post-partum period following COVID-19 infection", International Journal of Obstetric Anesthesia, vol. 47: Churchill Livingstone, 2021. AbstractWebsite
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Hasanin, A., M. Abdulatif, and M. Mostafa, "Maternal hypotension and neonatal sequelae. Comment on Br J Anaesth 2020; 125: 588–95", British Journal of Anaesthesia, vol. 127, issue 1: Elsevier Ltd, pp. e10 - e11, 2021. AbstractWebsite
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Lotfy, A., A. Hasanin, M. Rashad, M. Mostafa, D. Saad, M. Mahmoud, W. Hamimy, and A. Z. Fouad, "Peripheral perfusion index as a predictor of failed weaning from mechanical ventilation", Journal of Clinical Monitoring and Computing, vol. 35, issue 2: Springer Science and Business Media B.V., pp. 405 - 412, 2021. AbstractWebsite
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Mostafa, M., N. A. Helmy, A. S. Ibrahim, M. Elsayad, and A. M. Hasanin, "Accuracy of infrared thermography in detecting febrile critically ill patients.", Anaesthesia, critical care & pain medicine, vol. 40, issue 5, pp. 100951, 2021.
Mostafa, M., A. M. Hasanin, O. S. Elsayed, M. M. Mostafa, and K. Sarhan, "Accuracy of oscillometric blood pressure measurement at both arms in the lateral position.", Blood pressure monitoring, vol. 26, issue 5, pp. 364-372, 2021. Abstract

PURPOSE: To evaluate the accuracy of noninvasive blood pressure (NIBP) measurement at the dependent- and nondependent arms in the lateral position, using invasive blood pressure (IBP) as reference.

METHODS: This prospective observational study included 42 adult patients undergoing surgery in the lateral position. Paired readings of IBP and NIBP were obtained at either arm. The accuracy of both arms in detecting mean arterial pressure (MAP) <70 mmHg was evaluated using the area under the receiver operating characteristic curve (AUC). The agreement between the IBP and NIBP was evaluated using the Bland-Altman and error grid analyses.

RESULTS: We analyzed 350 and 347 paired readings at the dependent- and nondependent arms. The AUC for detecting hypotension was comparable in both arms. The negative and positive predictive values (95% confidence interval) were 100% (99-100%) and 24% (14-34%), respectively for the dependent arm at cutoff value MAP ≤86 mmHg; and were 99% (96-100%) and 21% (13-30%), respectively for the nondependent arm at cutoff value MAP ≤75 mmHg. The mean bias for MAP was -6.0 ± 9.1 and 6.3 ± 10.1 mmHg; and for systolic blood pressure was 0.3 ± 11.6 and 13.2 ± 12.6 mmHg, in the dependent- and nondependent arm, respectively. Error grid analysis showed that the proportions of paired MAP readings in risk zone A were 71 and 82% in the dependent- and the nondependent arms, respectively.

CONCLUSION: In the lateral position, the NIBP readings at both arms are not interchangeable with the corresponding IBP readings. However, NIBP measurement at both arms can be used to accurately rule out hypotension.

Hasanin, A., M. Abdulatif, and M. Mostafa, "Alveolar recruitment in patients with obesity: Is it really effective?", Anaesthesia, critical care & pain medicine, vol. 40, issue 4, pp. 100900, 2021.
Fathy, S., A. Hasanin, M. Mostafa, E. Ramzy, K. Sarhan, T. Almenesey, A. G. Safina, Osama Hosny, G. A. Hamden, A. A. Gado, et al., "The benefit of adding lidocaine to ketamine during rapid sequence endotracheal intubation in patients with septic shock: A randomised controlled trial.", Anaesthesia, critical care & pain medicine, vol. 40, issue 1, pp. 100731, 2021. Abstract

BACKGROUND: Patients with septic shock commonly require endotracheal intubation under general anaesthesia in the operating theatre, the emergency department, and the intensive care unit. Hypotension is a serious complication after induction of general anaesthesia, especially in patients with circulatory failure. No randomised controlled trials had previously investigated protocols for induction of anaesthesia in septic shock patients. The aim of the current work is to compare two protocols, lidocaine-ketamine combination versus ketamine full-dose for rapid-sequence endotracheal intubation in patients with septic shock.

METHODS: Forty-four adult patients, with septic shock, scheduled for emergency surgical intervention were enrolled in this randomised, double-blinded, controlled study. Patients were randomised to receive either 1 mg/kg ketamine (ketamine group, n = 22) or 0.5 mg/kg ketamine plus 1 mg/kg lidocaine (ketamine-lidocaine group, n = 22) for induction of anaesthesia in addition to 0.05 mg/kg midazolam (in both groups). Our primary outcome was the mean arterial pressure (MAP). Other outcomes included frequency of post-induction hypotension, heart rate, and cardiac output.

RESULTS: Forty-three patients were available for final analysis. The average MAP reading in the first 5 min post-induction was higher in ketamine-lidocaine group than in the ketamine group {82.8 ± 5.6 mmHg and 73 ± 10.2 mmHg, P < 0.001}. Furthermore, the incidence of post-intubation hypotension was lower in the ketamine-lidocaine group than in the ketamine group {1 patient (5%) versus 17 patients (77%), P < 0.001}. The ketamine-lidocaine group showed higher MAP in almost all the readings after induction compared to ketamine group. Other haemodynamic variables including cardiac output and heart rate were comparable between both study groups.

CONCLUSION: Lidocaine-ketamine combination showed less incidence of hypotension compared to ketamine full-dose when used for rapid-sequence endotracheal intubation in patients with septic shock. REGISTRATION URL: https://clinicaltrials.gov/ct2/show/NCT03844984?cond=NCT03844984&amp;rank=1.

Hasanin, A. M., maha m mostafa, and M. Abdulatif, "Comment on: "Perioperative goal-directed therapy in high-risk abdominal surgery. A multicenter randomized controlled superiority trial".", Journal of clinical anesthesia, vol. 75, pp. 110557, 2021.
Hasanin, A., A. Abdelmottaleb, H. Elhadi, A. S. Arafa, and M. Mostafa, "Evaluation of gastric residual volume using ultrasound in fasting patients with uncomplicated appendicitis scheduled for appendectomy.", Anaesthesia, critical care & pain medicine, vol. 40, issue 3, pp. 100869, 2021.
Mahmoud, M., A. M. Hasanin, M. Mostafa, F. Alhamade, B. A. Elhamid, and M. Elsherbeeny, "Evaluation of super-obesity and super-super-obesity as risk factors for difficult intubation in patients undergoing bariatric surgery.", Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery, vol. 17, issue 7, pp. 1279-1285, 2021. Abstract

BACKGROUND: Super-obesity is a serious disorder which requires bariatric surgery. The association of super-obesity and difficult intubation was not adequately established.

OBJECTIVES: To determine if super-obesity and super-super-obesity are associated with difficult intubation or not.

SETTING: University Hospital.

METHODS: A cohort of obese patients scheduled for bariatric surgery was prospectively recruited. Super-obesity and super-super-obesity were defined as body mass index ≥50 kg/m and 60 kg/m, respectively. Intubation difficulty was assessed by 2 methods: (1) intubation difficulty scale; (2) number of intubation attempts. Risk factors for difficult intubation were recorded. Univariate and multivariate analysis for risk factors for difficult intubation and difficult mask ventilation were performed.

RESULTS: A total of 658 patients were enrolled in the study including 205 (31%) super-obese and 52 (8%) super-super-obese patients. Ninety-nine (15%) patients required more than 1 intubation attempt, while 215 (33%) patients had intubation difficulty scale ≥5. Ninety-four (14.4%) patients had mask ventilation of moderate difficulty, while only 2 (.3%) patients needed 2-person ventilation. The independent risk factors for difficult intubation using the two stated definitions were STOP-Bang and Mallampati score values. The independent risk factors for mask ventilation of moderate difficulty were STOP-Bang score, Mallampati score, and limited neck extension.

CONCLUSION: Within obese patients, neither super-obesity nor super-super-obesity was associated with difficult intubation or difficult mask ventilation. High STOP-Bang and Mallampati score are the independent factors for difficult intubation.

Mostafa, M., A. Hasanin, M. Mostafa, M. Y. Taha, M. Elsayad, F. A. Haggag, O. Taalab, A. Rady, and B. A. Elhamid, "Hemodynamic effects of norepinephrine versus phenylephrine infusion for prophylaxis against spinal anesthesia-induced hypotension in the elderly population undergoing hip fracture surgery: a randomized controlled trial.", Korean journal of anesthesiology, vol. 74, issue 4, pp. 308-316, 2021. Abstract

BACKGROUND: Elderly population are at increased risk of spinal anesthesia-induced hypotension increasing their risk for postoperative morbidity and mortality. This study aimed to compare the hemodynamic effects of prophylactic infusion of norepinephrine (NE) versus phenylephrine (PE) in elderly patients undergoing hip fracture surgery under spinal anesthesia.

METHODS: Elderly patients scheduled for hip fracture surgery were randomized to receive either NE infusion (8 µg/min) (NE group, n = 31) or PE infusion (100 µg/min) (PE group, n = 31) after spinal anesthesia. Outcomes included mean heart rate, mean blood pressure, cardiac output, incidence of spinal anesthesia-induced hypotension, incidence of bradycardia, and incidence of hypertension.

RESULTS: Sixty-two patients with a mean age of 71 ± 6 years were included in the final analysis (31 patients in each group). The NE group showed a higher mean heart rate and cardiac output than the PE group. The NE group had a lower incidence of reactive bradycardia (10% vs. 36%, P = 0.031) and hypertension (3% vs. 36%, P = 0.003) than the PE group. No study participant developed hypotension, and the mean blood pressure was comparable between the two groups.

CONCLUSIONS: Both NE and PE infusions effectively prevented spinal anesthesia-induced hypotension in elderly patients undergoing hip fracture surgery. However, NE provided more hemodynamic stability than PE; maintaining the heart rate, higher cardiac output, less reactive bradycardia, and hypertension.

Helmy, M. A., L. Magdy Milad, A. Hasanin, and M. Mostafa, "The novel use of diaphragmatic excursion on hospital admission to predict the need for ventilatory support in patients with coronavirus disease 2019.", Anaesthesia, critical care & pain medicine, vol. 40, issue 6, pp. 100976, 2021. Abstract

BACKGROUND: We aimed to evaluate the ability of diaphragmatic excursion at hospital admission to predict outcomes in patients with coronavirus disease-2019 (COVID-19).

METHODS: In this prospective observational study, we included adult patients with severe COVID-19 admitted to a tertiary hospital. Ultrasound examination of the diaphragm was performed within 12 h of admission. Other collected data included peripheral oxygen saturation (SpO), respiratory rate, and computed tomography (CT) score. The outcomes included the ability of diaphragmatic excursion, respiratory rate, SpO, and CT score at admission to predict the need for ventilatory support (need for non-invasive or invasive ventilation) and patient mortality using the area under the receiver operating characteristic curve (AUC) analysis. Univariate and multivariable analyses about the need for ventilatory support and mortality were performed.

RESULTS: Diaphragmatic excursion showed an excellent ability to predict the need for ventilatory support, which was the highest among respiratory rate, SpO, and CT score; the AUCs (95% confidence interval [CI]) was 0.96 (0.85-1.00) for the right diaphragmatic excursion and 0.94 (0.82-0.99) for the left diaphragmatic excursion. The right diaphragmatic excursion also had the highest AUC for predicting mortality in relation to respiratory rate, SpO, and CT score. Multivariable analysis revealed that low diaphragmatic excursion was an independent predictor of mortality with an odds ratio (95% CI) of 0.55 (0.31-0.98).

CONCLUSION: Diaphragmatic excursion on hospital admission can accurately predict the need for ventilatory support and mortality in patients with severe COVID-19. Low diaphragmatic excursion was an independent risk factor for in-hospital mortality.

ahmed lotfy, A. Hasanin, M. Rashad, M. Mostafa, D. Saad, M. Mahmoud, W. Hamimy, and A. Z. Fouad, "Peripheral perfusion index as a predictor of failed weaning from mechanical ventilation.", Journal of clinical monitoring and computing, vol. 35, issue 2, pp. 405-412, 2021. Abstract

We hypothesized that impairment of peripheral perfusion index (PPI) during spontaneous breathing trial (SBT) might be predictive of weaning failure. We included 44 consecutive, adult, patients, who were scheduled for weaning after at least 48 h of invasive mechanical ventilation in this prospective observational study. Weaning failure was defined as failed SBT or reintubation within 48 h of extubation. PPI readings were obtained before initiation of the SBT, and every 5 min till the end of the SBT. PPI ratio was calculated at every time point as: PPI value/ baseline PPI. The primary outcome was the accuracy of PPI ratio at the end of the SBT in detecting failed weaning. Forty-three patients were available for the final analysis. Eighteen patients (42%) were considered failed weaning. PPI ratio was higher in patients with successful weaning compared to patients with failed weaning during the last 15 min of the SBT. PPI ratio at the end of SBT was higher in patients with successful weaning compared to patients with failed weaning. PPI ratio at the end of SBT had good predictive ability for weaning failure {area under receiver operating characteristic curve (95% confidence interval): 0.833(0.688-0.929), cutoff value ≤ 1.41}. The change in PPI during SBT is an independent predictor for re-intubation. PPI could be a useful tool for monitoring the patient response to SBT. Patients with successful weaning showed higher augmentation of PPI during the SBT compared to re-intubated patients. Failure of augmenting the PPI by 41% at the end of SBT could predict re-intubation with negative predictive value of 95%. Clinical trial identifier: NCT03974568. https://clinicaltrials.gov/ct2/show/NCT03974568?term=ahmed+hasanin&amp;draw=3&amp;rank=17.

Elshal, M. M., A. M. Hasanin, M. Mostafa, and R. M. Gamal, "Plethysmographic Peripheral Perfusion Index: Could It Be a New Vital Sign?", Frontiers in medicine, vol. 8, pp. 651909, 2021. Abstract

The plethysmographic peripheral perfusion index (PPI) is a very useful parameter with various emerging utilities in medical practice. The PPI represents the ratio between pulsatile and non-pulsatile portions in peripheral circulation and is mainly affected by two main determinants: cardiac output and balance between sympathetic and parasympathetic nervous systems. The PPI decreases in cases of sympathetic predominance and/or low cardiac output states; therefore, it is a useful predictor of patient outcomes in critical care units. The PPI could be a surrogate for cardiac output in tests for fluid responsiveness, as an objective measure of pain especially in un-cooperative patients, and as a predictor of successful weaning from mechanical ventilation. The PPI is simple to measure, easy to interpret, and has continuously displayed variables, making it a convenient parameter for detecting the adequacy of blood flow and sympathetic-parasympathetic balance.

Hasanin, A., and M. Mostafa, "Tocilizumab in patients with COVID-19: which patient, time, and dose?", Journal of anesthesia, vol. 35, issue 6, pp. 896-902, 2021. Abstract

Tocilizumab (TCZ) is a recombinant anti-interleukin-6 monoclonal antibody which showed uprising evidence as an anti-inflammatory agent which modulates the cytokine storm in patients with COVID-19. However, proper use of the drug requires selection of the appropriate patient and timing. The two main factors which might improve patient selection are the degree of respiratory failure and systemic inflammation. TCZ can decrease the mortality and progression to invasive mechanical ventilation in patients with severe COVID-19 who are not yet invasively ventilated. However, its use in invasively ventilated patients did not yet gain the same level of evidence especially when administered after > 1 day from mechanical ventilation. Being an anti-inflammatory and immunomodulatory drug, TCZ was mostly used in patients with COVID-19 who have clear signs of cytokine storm. However, the drug still showed positive response in some studies which did not strictly select patients with elevated markers of systemic inflammation. Thus, it is warranted to investigate and/or re-analyze the role of the drug in patients with severe COVID-19 and with no signs of systemic inflammation. TCZ is used in a dose of 8 mg/kg which can be repeated if there was no clinical improvement. However, there are no clear criteria for judgment of the success of the first dose. Being a drug with a major effect on gross outcomes in a serious pandemic with millions of mortalities, TCZ should be meticulously investigated to reach definitive indications and number of doses to avoid drug overuse, shortage, and side effects.

2020
Abdelhamid, B., M. Emam, M. Mostafa, A. Hasanin, W. Awada, A. Rady, and H. Omar, "The ability of perfusion index to detect segmental ulnar nerve sparing after supraclavicular nerve block", Journal of Clinical Monitoring and Computing, vol. 34, issue 6: Springer Science and Business Media B.V., pp. 1185 - 1191, 2020. AbstractWebsite
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Mostafa, M. M. A., A. M. Hasanin, F. Alhamade, B. Abdelhamid, A. G. Safina, S. M. Kasem, O. Hosny, M. Mahmoud, E. Fouad, A. Rady, et al., "Accuracy and trending of non-invasive oscillometric blood pressure monitoring at the wrist in obese patients", Anaesthesia Critical Care and Pain Medicine, vol. 39, issue 2: Elsevier Masson SAS, pp. 221 - 227, 2020. AbstractWebsite
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