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Hasanin, A., S. Habib, Y. Abdelwahab, M. Elsayad, M. Mostafa, and M. Zayed, "Variable Versus Fixed-Rate Infusion of Phenylephrine During Cesarean Delivery: A Randomized Controlled Trial", BMC Anesthesiology, vol. 19, issue 1, pp. 197, 2019.
Abdelhakeem, A. K., A. Amin, A. Hasanin, A. Mukhtar, akram eladawy, and S. Kassem, "Validity of Pulse Oximetry-derived Peripheral Perfusion Index in Pain Assessment in Critically Ill Intubated Patients.", The Clinical journal of pain, vol. 37, issue 12, pp. 904-907, 2021. Abstract

OBJECTIVES: Evaluation of pain in critically ill intubated patients is difficult and subjective. This study aimed to evaluate the accuracy of oximetry-derived peripheral perfusion index (PPI) in pain assessment in critically ill intubated patients using the behavioral pain scale (BPS) as a reference.

MATERIALS AND METHODS: This prospective observational study included 35 adult mechanically ventilated surgical patients during their first 2 postoperative days in the intensive care unit. Values of PPI, BPS, Richmond Agitation Sedation Scale (RASS), heart rate, and blood pressure were obtained before and after a standard painful stimulus (changing the patient position) and the ratio between the second and the first reading was calculated to determine the change (Δ) in all variables. The outcomes were the correlation between ΔBPS and ΔPPI as well as other hemodynamic parameters. The ability of the PPI to detect pain (defined as BPS ≥6) was analyzed using the area under receiver operating characteristic curve.

RESULTS: Paired readings were obtained from 35 patients. After the standard painful stimulus, the PPI decreased while the BPS and the Richmond agitation sedation scale increased. The Spearman correlation coefficient (95% confidence interval) between Δ PPI and Δ BPS was 0.41 (0.09-0.65). PPI values showed poor accuracy in detecting pain with area under receiver operating characteristic curve (95% confidence interval): 0.65 (0.53-0.76), with best cutoff value of ≤2.7.

CONCLUSION: The PPI decreased after application of a standard painful stimulus in critically ill intubated patients. ∆PPI showed a low correlation with ∆BPS, and a PPI of ≤2.7 showed a low ability to detect BPS ≥6. Therefore, PPI should not be used for pain evaluation in critically ill intubated surgical patients.

Hasanin, A., A. Aboelela, M. Mostafa, R. M. Mansour, and A. Kareem, "The Use of Topical Nitroglycerin to Facilitate Radial Arterial Catheter Insertion in Children: A Randomized Controlled Trial.", Journal of cardiothoracic and vascular anesthesia, vol. 34, issue 12, pp. 3354-3360, 2020. Abstract

OBJECTIVES: To determine whether the use of topical nitroglycerin patch increases radial artery diameter and facilitate cannulation in children.

DESIGN: Randomized controlled trial.

SETTING: Cairo University Hospital.

PARTICIPANTS: Children aged 2 to 8 years old scheduled for cardiac surgery.

INTERVENTION: In the nitroglycerin group (n = 20), a gauze-covered, half-sized nitroglycerin patch (5 mg) was applied at the site of radial pulsation 1 hour before induction of anesthesia. In the control group (n = 20), a gauze pad was applied to the bare skin at the site of radial pulsation with no intervention.

MEASUREMENTS AND MAIN RESULTS: The primary outcome was the diameter of the radial artery in both limbs using ultrasonography. Other outcomes included the degree of arterial palpability, number of arterial punctures, and incidence of successful first puncture cannulation. The radial artery diameter increased after 30 minutes and 60 minutes compared with the baseline value in the nitroglycerin group in both limbs, whereas no change was reported in the radial artery diameter in the control group. The nitroglycerin group showed a greater incidence of successful first cannulation trial, a fewer number of trials, and a shorter cannulation time compared with the control group. There were no significant hypotensive episodes in any patient.

CONCLUSION: Local application of a half-sized, 5 mg nitroglycerin patch for 60 minutes in children increased the radial artery diameter bilaterally, increased the rate of first trial success, and decreased the time needed for arterial cannulation without significant hypotensive episodes.

Nassar, H., A. Hasanin, M. Sewilam, H. Ahmed, M. Abo-elsoud, O. Taalab, A. Rady, and H. A. Zoheir, "Transmuscular Quadratus Lumborum Block versus Suprainguinal Fascia Iliaca Block for Hip Arthroplasty: A Randomized, Controlled Pilot Study.", Local and regional anesthesia, vol. 14, pp. 67-74, 2021. Abstract

Background: This study aimed to investigate the analgesic efficacy and motor block profile of single-shot transmuscular quadratus lumborum block (QLB) in comparison with those of suprainguinal fascia iliaca block (FIB) in patients undergoing hip arthroplasty.

Methods: This randomized, double-blinded, controlled trial included adult patients undergoing hip arthroplasty under spinal anesthesia. Patients were allocated to one of two groups according to the regional block received: FIB group (n=19) or QLB group (n=17). Both study groups were compared with regard to the duration of analgesia (primary outcome), block performance time, pain during positioning for spinal anesthesia, total morphine consumption in the first postoperative 24-h period, quadriceps muscle power, and static and dynamic visual analog scale.

Results: Thirty-six patients were included in the final analysis. Both study groups had comparable durations of analgesia. Postoperative visual analog scale (static and dynamic) values were comparable between the two groups in most readings. The block performance time was shorter in the FIB group. The number of patients with pain during positioning for the subarachnoid block was lower in the QLB group. The total morphine requirement during the first 24 h was marginally lower in the FIB group, whereas the quadriceps motor grade was higher in the FIB group than in the QLB group at 4 h and 6 h after surgery.

Conclusion: Both single-shot blocks, namely the suprainguinal FIB and transmuscular QLB, provide effective postoperative analgesia after hip arthroplasty. FIB showed slightly lower 24-h morphine consumption, while QLB showed better quadriceps motor power.

Clinical Trial Registration: The study was registered at clinical trials registry system before enrollment of the first participant (NCT04005326; initial release date, 2 July 2019;

Hasanin, A., and M. Mostafa, "Tocilizumab in patients with COVID-19: which patient, time, and dose?", Journal of anesthesia, 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.

Fathy, S., A. Hasanin, M. Raafat, M. Mostafa, A. fetouh, M. E. Sayed, E. M. Badr, H. M. Kamal, and A. Z. Fouad, "Thoracic fluid content: a novel parameter for predicting failed weaning from mechanical ventilation", Journal of intensive care, vol. 8, pp. 20, 2020.
Hammad, Y., A. Hasanin, A. Elsakka, A. Refaie, D. Abdelfattah, and S. A. El Rahman, "Thoracic Fluid Content: A Novel Parameter for Detection of Pulmonary Edema in Parturients With Preeclampsia", Journal of Clinical Monitoring and Computing, vol. 33, issue 4, pp. 413-418, 2019.
Hasanin, A., A. Mukhtar, and A. Mokhtar, "Syrian revolution: A field hospital under attack", American Journal Of Disaster Medicine, vol. 8, issue 4, pp. 259-65, 2013.
Elmetwally, S. A., A. Hasanin, L. Sobh, M. Gohary, K. Sarhan, and D. Ghazy, "Semi-sitting position enhances gastric emptying of clear fluids in children: A randomized controlled trial", Egyptian Journal of Anaesthesia, vol. 36, pp. 170-175, 2020.
Hasanin, A., "Reply to: Pulse oximeter perfusion index for assessment of brachial plexus block: a holy grail or a design fail?", British journal of anaesthesia, vol. 119, issue 6, pp. 1239, 2017 Dec 01.
Hasanin, A., and M. Mostafa, "A reply to a letter", Journal of anesthesia, vol. 34, pp. 631, 2020.
Ghaith, D. M., R. M. Hassan, and A. Hasanin, "Rapid identification of nosocomial Acinetobacter baumannii isolated from a surgical intensive care unit in Egypt", Annals of Saudi Medicine, vol. 35, issue 6, pp. 440-4, 2015.
Hasanin, A., T. Zanata, S. Osman, Y. Abdelwahab, R. Samer, M. Mahmoud, M. Elsherbiny, K. Elshafaei, F. Morsy, and A. Omran, "Pulse Pressure Variation-Guided Fluid Therapy during Supratentorial Brain Tumour Excision: A Randomized Controlled Trial.", Open Access Macedonian Journal of Medical Sciences, vol. 7, issue 15, pp. 2474-2479, 2019.
Hasanin, A., N. Sherif, M. Elbarbary, and D. Mansor, "Providing medical care in unfamiliar settings; experience of an Egyptian campaign in Uganda", Pan African Medical Journal, vol. 17, pp. 111, 2014.
Ahmed Hasanin, Akram Eladawy, H. M. Y. S. I. A. L. H. M. D. G. A. M., "Prevalence of extensively drug-resistant gram negative bacilli in surgical intensive care in Egypt", Pan African Medical Journal, vol. 19, pp. 177, 2014.
Hasanin, A. M., A. M. Mokhtar, S. M. Amin, and A. A. Sayed, "Preprocedural ultrasound examination versus manual palpation for thoracic epidural catheter insertion.", Saudi journal of anaesthesia, vol. 11, issue 1, pp. 62-66, 2017 Jan-Mar. Abstract

BACKGROUND AND AIMS: Ultrasound imaging before neuraxial blocks was reported to improve the ease of insertion and minimize the traumatic trials. However, the data about the use of ultrasound in thoracic epidural block are scanty. In this study, pre-insertion ultrasound scanning was compared to traditional manual palpation technique for insertion of the thoracic epidural catheter in abdominal operations.

SUBJECTS AND METHODS: Forty-eight patients scheduled to midline laparotomy under combined general anesthesia with thoracic epidural analgesia were included in the study. Patients were divided into two groups with regard to technique of epidural catheter insertion; ultrasound group (done ultrasound screening to determine the needle insertion point, angle of insertion, and depth of epidural space) and manual palpation group (used the traditional manual palpation technique). Number of puncture attempts, number of puncture levels, and number of needle redirection attempts were reported. Time of catheter insertion and complications were also reported in both groups.

RESULTS: Ultrasound group showed lower number of puncture attempts (1 [1, 1.25] vs. 1.5 [1, 2.75],= 0.008), puncture levels (1 (1, 1) vs. 1 [1, 2],= 0.002), and needle redirection attempts (0 [0, 2.25] vs. 3.5 [2, 5],= 0.00). Ultrasound-guided group showed shorter time for catheter insertion compared to manual palpation group (140 ± 24 s vs. 213 ± 71 s= 0.00).

CONCLUSION: Preprocedural ultrasound imaging increased the incidence of first pass success in thoracic epidural catheter insertion and reduced the catheter insertion time compared to manual palpation method.

Abdelnasser, A., B. Abdelhamid, A. Elsonbaty, A. Hasanin, and A. Rady, "Predicting successful supraclavicular brachial plexus block using pulse oximeter perfusion index.", British journal of anaesthesia, vol. 119, issue 2, pp. 276-280, 2017 Aug 01. Abstract

Background: Supraclavicular nerve block is a popular approach for anaesthesia for upper limb surgeries. Conventional methods for evaluation of block success are time consuming and need patient cooperation. The aim of this study was to evaluate whether the perfusion index (PI) can be used to predict and provide a cut-off value for ultrasound-guided supraclavicular nerve block success.

Methods: The study included 77 patients undergoing elective orthopaedic procedures under ultrasound-guided supraclavicular nerve block. After local anaesthetic injection, sensory block success was assessed every 3 min by pinprick, and motor block success was assessed every 5 min by the ability to flex the elbow and the hand against resistance. The PI was recorded at baseline and at 10, 20, and 30 min after anaesthetic injection in both blocked and non-blocked limbs. The PI ratio was calculated as the PI after 10 min divided by the PI at the baseline. Receiver operating characteristic curves were constructed for the accuracy of the PI in detection of block success.

Results: The PI was higher in the blocked limb at all time points, and this was paralleled by a higher PI ratio compared with the unblocked limb. Both the PI and the PI ratio at 10 min after injection showed a sensitivity and specificity of 100% for block success at cut-off values of 3.3 and 1.4, respectively.

Conclusions: The PI is a useful tool for evaluation of successful supraclavicular nerve block. A PI ratio of > 1.4 is a good predictor for block success.

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.

Hasanin, A., and Y. Hassabelnaby, "Perioperative non-invasive haemodynamic optimisation: Is photoplethysmography really useless?", Anaesthesia Critical care & Pain Medicine, vol. 39, pp. 625, 2020.
Hasanin, A., A. Mukhtar, and H. Nassar, "Perfusion indices revisited", Journal of Intensive Care, vol. 5, pp. 24, 2017.
Mukhtar, A., ahmed lotfy, A. Hasanin, I. El-Hefnawy, and A. El-adawy, "Outcome of non-invasive ventilation in COVID-19 critically ill patients: A Retrospective observational Study", Anaesthesia Critical care & Pain Medicine, vol. 39, pp. 579-580, 2020.
Mukhtar, A., M. AbdelGhany, A. Hasanin, W. Hamimy, A. Abougabal, H. Nasser, A. Elsayed, and E. Ayman, "The Novel Use of Point-of-Care Ultrasound to Predict Resting Energy Expenditure in Critically Ill Patients.", Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine, vol. 40, issue 8, pp. 1581-1589, 2021. Abstract

OBJECTIVES: Accurate estimation of a critically ill patient's caloric requirements is essential for a proper nutritional plan. This study aimed to evaluate the use of point-of-care ultrasound (US) to predict the resting energy expenditure (REE) in critically ill patients.

METHODS: In 69 critically ill patients, we measured the REE using indirect calorimetry (REE_IC), muscle layer thicknesses (MLTs), and cardiac output (CO). Muscle thickness was measured at the biceps and the quadriceps muscles. Patients were randomly split into a model development group (n = 46) and a cross-validation group (n = 23). In the model development group, a multiple regression analysis was applied to generate REE using US (REE_US) values. In the cross-validation group, REE was calculated by the REE_US and the resting energy expenditure using the Harris-Benedict equation (REE_HB), and both were compared to the REE_IC.

RESULTS: In the model development group, the REE_US was predicted by the following formula: predicted REE_US (kcal/d) = 206 + 173.5 × CO (L/min) + 137 × MLT (cm) - 230 × (women = 1; men = 0) (R  = 0.8; P < .0001). In the cross-validated group, the REE_IC and REE_US values were comparable (mean difference, -66 [-3.3%] kcal/d; P = .14). However, the difference between the mean REE_IC and the mean REE_HB was 455.8 (26%) kcal/d (P < .001). According to a Bland-Altman analysis, the REE_US agreed well with the REE_IC, whereas the REE_HB did not.

CONCLUSIONS: Resting energy expenditure could be estimated from US measurements of MLTs and CO. Our point-of-care US model explains 80% of the change in the REE in critically ill patients.

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.

Hasanin, A., S. Amin, S. Refaat, S. Habib, M. Zayed, and Y. Abdelwahab, "Norepinephrine Versus Phenylephrine Infusion for Prophylaxis Against Post-Spinal Anaesthesia Hypotension During Elective Caesarean Delivery: A Randomised Controlled Trial", Anaesthesia Critical Care & Pain Medicine, vol. 38, issue 6, pp. 601-607, 2019.